| File: | tools/clang/lib/Driver/ToolChains/Clang.cpp |
| Warning: | line 3305, column 5 Value stored to 'IsWindowsGNU' is never read |
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| 1 | //===--- LLVM.cpp - Clang+LLVM ToolChain Implementations --------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "Clang.h" |
| 11 | #include "Arch/AArch64.h" |
| 12 | #include "Arch/ARM.h" |
| 13 | #include "Arch/Mips.h" |
| 14 | #include "Arch/PPC.h" |
| 15 | #include "Arch/RISCV.h" |
| 16 | #include "Arch/Sparc.h" |
| 17 | #include "Arch/SystemZ.h" |
| 18 | #include "Arch/X86.h" |
| 19 | #include "AMDGPU.h" |
| 20 | #include "CommonArgs.h" |
| 21 | #include "Hexagon.h" |
| 22 | #include "InputInfo.h" |
| 23 | #include "PS4CPU.h" |
| 24 | #include "clang/Basic/CharInfo.h" |
| 25 | #include "clang/Basic/LangOptions.h" |
| 26 | #include "clang/Basic/ObjCRuntime.h" |
| 27 | #include "clang/Basic/Version.h" |
| 28 | #include "clang/Driver/DriverDiagnostic.h" |
| 29 | #include "clang/Driver/Options.h" |
| 30 | #include "clang/Driver/SanitizerArgs.h" |
| 31 | #include "clang/Driver/XRayArgs.h" |
| 32 | #include "llvm/ADT/StringExtras.h" |
| 33 | #include "llvm/Config/llvm-config.h" |
| 34 | #include "llvm/Option/ArgList.h" |
| 35 | #include "llvm/Support/CodeGen.h" |
| 36 | #include "llvm/Support/Compression.h" |
| 37 | #include "llvm/Support/FileSystem.h" |
| 38 | #include "llvm/Support/Path.h" |
| 39 | #include "llvm/Support/Process.h" |
| 40 | #include "llvm/Support/TargetParser.h" |
| 41 | #include "llvm/Support/YAMLParser.h" |
| 42 | |
| 43 | #ifdef LLVM_ON_UNIX1 |
| 44 | #include <unistd.h> // For getuid(). |
| 45 | #endif |
| 46 | |
| 47 | using namespace clang::driver; |
| 48 | using namespace clang::driver::tools; |
| 49 | using namespace clang; |
| 50 | using namespace llvm::opt; |
| 51 | |
| 52 | static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) { |
| 53 | if (Arg *A = |
| 54 | Args.getLastArg(clang::driver::options::OPT_C, options::OPT_CC)) { |
| 55 | if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_P) && |
| 56 | !Args.hasArg(options::OPT__SLASH_EP) && !D.CCCIsCPP()) { |
| 57 | D.Diag(clang::diag::err_drv_argument_only_allowed_with) |
| 58 | << A->getBaseArg().getAsString(Args) |
| 59 | << (D.IsCLMode() ? "/E, /P or /EP" : "-E"); |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) { |
| 65 | // In gcc, only ARM checks this, but it seems reasonable to check universally. |
| 66 | if (Args.hasArg(options::OPT_static)) |
| 67 | if (const Arg *A = |
| 68 | Args.getLastArg(options::OPT_dynamic, options::OPT_mdynamic_no_pic)) |
| 69 | D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) |
| 70 | << "-static"; |
| 71 | } |
| 72 | |
| 73 | // Add backslashes to escape spaces and other backslashes. |
| 74 | // This is used for the space-separated argument list specified with |
| 75 | // the -dwarf-debug-flags option. |
| 76 | static void EscapeSpacesAndBackslashes(const char *Arg, |
| 77 | SmallVectorImpl<char> &Res) { |
| 78 | for (; *Arg; ++Arg) { |
| 79 | switch (*Arg) { |
| 80 | default: |
| 81 | break; |
| 82 | case ' ': |
| 83 | case '\\': |
| 84 | Res.push_back('\\'); |
| 85 | break; |
| 86 | } |
| 87 | Res.push_back(*Arg); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | // Quote target names for inclusion in GNU Make dependency files. |
| 92 | // Only the characters '$', '#', ' ', '\t' are quoted. |
| 93 | static void QuoteTarget(StringRef Target, SmallVectorImpl<char> &Res) { |
| 94 | for (unsigned i = 0, e = Target.size(); i != e; ++i) { |
| 95 | switch (Target[i]) { |
| 96 | case ' ': |
| 97 | case '\t': |
| 98 | // Escape the preceding backslashes |
| 99 | for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j) |
| 100 | Res.push_back('\\'); |
| 101 | |
| 102 | // Escape the space/tab |
| 103 | Res.push_back('\\'); |
| 104 | break; |
| 105 | case '$': |
| 106 | Res.push_back('$'); |
| 107 | break; |
| 108 | case '#': |
| 109 | Res.push_back('\\'); |
| 110 | break; |
| 111 | default: |
| 112 | break; |
| 113 | } |
| 114 | |
| 115 | Res.push_back(Target[i]); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | /// Apply \a Work on the current tool chain \a RegularToolChain and any other |
| 120 | /// offloading tool chain that is associated with the current action \a JA. |
| 121 | static void |
| 122 | forAllAssociatedToolChains(Compilation &C, const JobAction &JA, |
| 123 | const ToolChain &RegularToolChain, |
| 124 | llvm::function_ref<void(const ToolChain &)> Work) { |
| 125 | // Apply Work on the current/regular tool chain. |
| 126 | Work(RegularToolChain); |
| 127 | |
| 128 | // Apply Work on all the offloading tool chains associated with the current |
| 129 | // action. |
| 130 | if (JA.isHostOffloading(Action::OFK_Cuda)) |
| 131 | Work(*C.getSingleOffloadToolChain<Action::OFK_Cuda>()); |
| 132 | else if (JA.isDeviceOffloading(Action::OFK_Cuda)) |
| 133 | Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); |
| 134 | else if (JA.isHostOffloading(Action::OFK_HIP)) |
| 135 | Work(*C.getSingleOffloadToolChain<Action::OFK_HIP>()); |
| 136 | else if (JA.isDeviceOffloading(Action::OFK_HIP)) |
| 137 | Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); |
| 138 | |
| 139 | if (JA.isHostOffloading(Action::OFK_OpenMP)) { |
| 140 | auto TCs = C.getOffloadToolChains<Action::OFK_OpenMP>(); |
| 141 | for (auto II = TCs.first, IE = TCs.second; II != IE; ++II) |
| 142 | Work(*II->second); |
| 143 | } else if (JA.isDeviceOffloading(Action::OFK_OpenMP)) |
| 144 | Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); |
| 145 | |
| 146 | // |
| 147 | // TODO: Add support for other offloading programming models here. |
| 148 | // |
| 149 | } |
| 150 | |
| 151 | /// This is a helper function for validating the optional refinement step |
| 152 | /// parameter in reciprocal argument strings. Return false if there is an error |
| 153 | /// parsing the refinement step. Otherwise, return true and set the Position |
| 154 | /// of the refinement step in the input string. |
| 155 | static bool getRefinementStep(StringRef In, const Driver &D, |
| 156 | const Arg &A, size_t &Position) { |
| 157 | const char RefinementStepToken = ':'; |
| 158 | Position = In.find(RefinementStepToken); |
| 159 | if (Position != StringRef::npos) { |
| 160 | StringRef Option = A.getOption().getName(); |
| 161 | StringRef RefStep = In.substr(Position + 1); |
| 162 | // Allow exactly one numeric character for the additional refinement |
| 163 | // step parameter. This is reasonable for all currently-supported |
| 164 | // operations and architectures because we would expect that a larger value |
| 165 | // of refinement steps would cause the estimate "optimization" to |
| 166 | // under-perform the native operation. Also, if the estimate does not |
| 167 | // converge quickly, it probably will not ever converge, so further |
| 168 | // refinement steps will not produce a better answer. |
| 169 | if (RefStep.size() != 1) { |
| 170 | D.Diag(diag::err_drv_invalid_value) << Option << RefStep; |
| 171 | return false; |
| 172 | } |
| 173 | char RefStepChar = RefStep[0]; |
| 174 | if (RefStepChar < '0' || RefStepChar > '9') { |
| 175 | D.Diag(diag::err_drv_invalid_value) << Option << RefStep; |
| 176 | return false; |
| 177 | } |
| 178 | } |
| 179 | return true; |
| 180 | } |
| 181 | |
| 182 | /// The -mrecip flag requires processing of many optional parameters. |
| 183 | static void ParseMRecip(const Driver &D, const ArgList &Args, |
| 184 | ArgStringList &OutStrings) { |
| 185 | StringRef DisabledPrefixIn = "!"; |
| 186 | StringRef DisabledPrefixOut = "!"; |
| 187 | StringRef EnabledPrefixOut = ""; |
| 188 | StringRef Out = "-mrecip="; |
| 189 | |
| 190 | Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ); |
| 191 | if (!A) |
| 192 | return; |
| 193 | |
| 194 | unsigned NumOptions = A->getNumValues(); |
| 195 | if (NumOptions == 0) { |
| 196 | // No option is the same as "all". |
| 197 | OutStrings.push_back(Args.MakeArgString(Out + "all")); |
| 198 | return; |
| 199 | } |
| 200 | |
| 201 | // Pass through "all", "none", or "default" with an optional refinement step. |
| 202 | if (NumOptions == 1) { |
| 203 | StringRef Val = A->getValue(0); |
| 204 | size_t RefStepLoc; |
| 205 | if (!getRefinementStep(Val, D, *A, RefStepLoc)) |
| 206 | return; |
| 207 | StringRef ValBase = Val.slice(0, RefStepLoc); |
| 208 | if (ValBase == "all" || ValBase == "none" || ValBase == "default") { |
| 209 | OutStrings.push_back(Args.MakeArgString(Out + Val)); |
| 210 | return; |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | // Each reciprocal type may be enabled or disabled individually. |
| 215 | // Check each input value for validity, concatenate them all back together, |
| 216 | // and pass through. |
| 217 | |
| 218 | llvm::StringMap<bool> OptionStrings; |
| 219 | OptionStrings.insert(std::make_pair("divd", false)); |
| 220 | OptionStrings.insert(std::make_pair("divf", false)); |
| 221 | OptionStrings.insert(std::make_pair("vec-divd", false)); |
| 222 | OptionStrings.insert(std::make_pair("vec-divf", false)); |
| 223 | OptionStrings.insert(std::make_pair("sqrtd", false)); |
| 224 | OptionStrings.insert(std::make_pair("sqrtf", false)); |
| 225 | OptionStrings.insert(std::make_pair("vec-sqrtd", false)); |
| 226 | OptionStrings.insert(std::make_pair("vec-sqrtf", false)); |
| 227 | |
| 228 | for (unsigned i = 0; i != NumOptions; ++i) { |
| 229 | StringRef Val = A->getValue(i); |
| 230 | |
| 231 | bool IsDisabled = Val.startswith(DisabledPrefixIn); |
| 232 | // Ignore the disablement token for string matching. |
| 233 | if (IsDisabled) |
| 234 | Val = Val.substr(1); |
| 235 | |
| 236 | size_t RefStep; |
| 237 | if (!getRefinementStep(Val, D, *A, RefStep)) |
| 238 | return; |
| 239 | |
| 240 | StringRef ValBase = Val.slice(0, RefStep); |
| 241 | llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase); |
| 242 | if (OptionIter == OptionStrings.end()) { |
| 243 | // Try again specifying float suffix. |
| 244 | OptionIter = OptionStrings.find(ValBase.str() + 'f'); |
| 245 | if (OptionIter == OptionStrings.end()) { |
| 246 | // The input name did not match any known option string. |
| 247 | D.Diag(diag::err_drv_unknown_argument) << Val; |
| 248 | return; |
| 249 | } |
| 250 | // The option was specified without a float or double suffix. |
| 251 | // Make sure that the double entry was not already specified. |
| 252 | // The float entry will be checked below. |
| 253 | if (OptionStrings[ValBase.str() + 'd']) { |
| 254 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; |
| 255 | return; |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | if (OptionIter->second == true) { |
| 260 | // Duplicate option specified. |
| 261 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; |
| 262 | return; |
| 263 | } |
| 264 | |
| 265 | // Mark the matched option as found. Do not allow duplicate specifiers. |
| 266 | OptionIter->second = true; |
| 267 | |
| 268 | // If the precision was not specified, also mark the double entry as found. |
| 269 | if (ValBase.back() != 'f' && ValBase.back() != 'd') |
| 270 | OptionStrings[ValBase.str() + 'd'] = true; |
| 271 | |
| 272 | // Build the output string. |
| 273 | StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut; |
| 274 | Out = Args.MakeArgString(Out + Prefix + Val); |
| 275 | if (i != NumOptions - 1) |
| 276 | Out = Args.MakeArgString(Out + ","); |
| 277 | } |
| 278 | |
| 279 | OutStrings.push_back(Args.MakeArgString(Out)); |
| 280 | } |
| 281 | |
| 282 | /// The -mprefer-vector-width option accepts either a positive integer |
| 283 | /// or the string "none". |
| 284 | static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args, |
| 285 | ArgStringList &CmdArgs) { |
| 286 | Arg *A = Args.getLastArg(options::OPT_mprefer_vector_width_EQ); |
| 287 | if (!A) |
| 288 | return; |
| 289 | |
| 290 | StringRef Value = A->getValue(); |
| 291 | if (Value == "none") { |
| 292 | CmdArgs.push_back("-mprefer-vector-width=none"); |
| 293 | } else { |
| 294 | unsigned Width; |
| 295 | if (Value.getAsInteger(10, Width)) { |
| 296 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Value; |
| 297 | return; |
| 298 | } |
| 299 | CmdArgs.push_back(Args.MakeArgString("-mprefer-vector-width=" + Value)); |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | static void getWebAssemblyTargetFeatures(const ArgList &Args, |
| 304 | std::vector<StringRef> &Features) { |
| 305 | handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group); |
| 306 | } |
| 307 | |
| 308 | static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, |
| 309 | const ArgList &Args, ArgStringList &CmdArgs, |
| 310 | bool ForAS) { |
| 311 | const Driver &D = TC.getDriver(); |
| 312 | std::vector<StringRef> Features; |
| 313 | switch (Triple.getArch()) { |
| 314 | default: |
| 315 | break; |
| 316 | case llvm::Triple::mips: |
| 317 | case llvm::Triple::mipsel: |
| 318 | case llvm::Triple::mips64: |
| 319 | case llvm::Triple::mips64el: |
| 320 | mips::getMIPSTargetFeatures(D, Triple, Args, Features); |
| 321 | break; |
| 322 | |
| 323 | case llvm::Triple::arm: |
| 324 | case llvm::Triple::armeb: |
| 325 | case llvm::Triple::thumb: |
| 326 | case llvm::Triple::thumbeb: |
| 327 | arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS); |
| 328 | break; |
| 329 | |
| 330 | case llvm::Triple::ppc: |
| 331 | case llvm::Triple::ppc64: |
| 332 | case llvm::Triple::ppc64le: |
| 333 | ppc::getPPCTargetFeatures(D, Triple, Args, Features); |
| 334 | break; |
| 335 | case llvm::Triple::riscv32: |
| 336 | case llvm::Triple::riscv64: |
| 337 | riscv::getRISCVTargetFeatures(D, Args, Features); |
| 338 | break; |
| 339 | case llvm::Triple::systemz: |
| 340 | systemz::getSystemZTargetFeatures(Args, Features); |
| 341 | break; |
| 342 | case llvm::Triple::aarch64: |
| 343 | case llvm::Triple::aarch64_be: |
| 344 | aarch64::getAArch64TargetFeatures(D, Args, Features); |
| 345 | break; |
| 346 | case llvm::Triple::x86: |
| 347 | case llvm::Triple::x86_64: |
| 348 | x86::getX86TargetFeatures(D, Triple, Args, Features); |
| 349 | break; |
| 350 | case llvm::Triple::hexagon: |
| 351 | hexagon::getHexagonTargetFeatures(D, Args, Features); |
| 352 | break; |
| 353 | case llvm::Triple::wasm32: |
| 354 | case llvm::Triple::wasm64: |
| 355 | getWebAssemblyTargetFeatures(Args, Features); |
| 356 | break; |
| 357 | case llvm::Triple::sparc: |
| 358 | case llvm::Triple::sparcel: |
| 359 | case llvm::Triple::sparcv9: |
| 360 | sparc::getSparcTargetFeatures(D, Args, Features); |
| 361 | break; |
| 362 | case llvm::Triple::r600: |
| 363 | case llvm::Triple::amdgcn: |
| 364 | amdgpu::getAMDGPUTargetFeatures(D, Args, Features); |
| 365 | break; |
| 366 | } |
| 367 | |
| 368 | // Find the last of each feature. |
| 369 | llvm::StringMap<unsigned> LastOpt; |
| 370 | for (unsigned I = 0, N = Features.size(); I < N; ++I) { |
| 371 | StringRef Name = Features[I]; |
| 372 | assert(Name[0] == '-' || Name[0] == '+')((Name[0] == '-' || Name[0] == '+') ? static_cast<void> (0) : __assert_fail ("Name[0] == '-' || Name[0] == '+'", "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 372, __PRETTY_FUNCTION__)); |
| 373 | LastOpt[Name.drop_front(1)] = I; |
| 374 | } |
| 375 | |
| 376 | for (unsigned I = 0, N = Features.size(); I < N; ++I) { |
| 377 | // If this feature was overridden, ignore it. |
| 378 | StringRef Name = Features[I]; |
| 379 | llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1)); |
| 380 | assert(LastI != LastOpt.end())((LastI != LastOpt.end()) ? static_cast<void> (0) : __assert_fail ("LastI != LastOpt.end()", "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 380, __PRETTY_FUNCTION__)); |
| 381 | unsigned Last = LastI->second; |
| 382 | if (Last != I) |
| 383 | continue; |
| 384 | |
| 385 | CmdArgs.push_back("-target-feature"); |
| 386 | CmdArgs.push_back(Name.data()); |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | static bool |
| 391 | shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime, |
| 392 | const llvm::Triple &Triple) { |
| 393 | // We use the zero-cost exception tables for Objective-C if the non-fragile |
| 394 | // ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and |
| 395 | // later. |
| 396 | if (runtime.isNonFragile()) |
| 397 | return true; |
| 398 | |
| 399 | if (!Triple.isMacOSX()) |
| 400 | return false; |
| 401 | |
| 402 | return (!Triple.isMacOSXVersionLT(10, 5) && |
| 403 | (Triple.getArch() == llvm::Triple::x86_64 || |
| 404 | Triple.getArch() == llvm::Triple::arm)); |
| 405 | } |
| 406 | |
| 407 | /// Adds exception related arguments to the driver command arguments. There's a |
| 408 | /// master flag, -fexceptions and also language specific flags to enable/disable |
| 409 | /// C++ and Objective-C exceptions. This makes it possible to for example |
| 410 | /// disable C++ exceptions but enable Objective-C exceptions. |
| 411 | static void addExceptionArgs(const ArgList &Args, types::ID InputType, |
| 412 | const ToolChain &TC, bool KernelOrKext, |
| 413 | const ObjCRuntime &objcRuntime, |
| 414 | ArgStringList &CmdArgs) { |
| 415 | const llvm::Triple &Triple = TC.getTriple(); |
| 416 | |
| 417 | if (KernelOrKext) { |
| 418 | // -mkernel and -fapple-kext imply no exceptions, so claim exception related |
| 419 | // arguments now to avoid warnings about unused arguments. |
| 420 | Args.ClaimAllArgs(options::OPT_fexceptions); |
| 421 | Args.ClaimAllArgs(options::OPT_fno_exceptions); |
| 422 | Args.ClaimAllArgs(options::OPT_fobjc_exceptions); |
| 423 | Args.ClaimAllArgs(options::OPT_fno_objc_exceptions); |
| 424 | Args.ClaimAllArgs(options::OPT_fcxx_exceptions); |
| 425 | Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions); |
| 426 | return; |
| 427 | } |
| 428 | |
| 429 | // See if the user explicitly enabled exceptions. |
| 430 | bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, |
| 431 | false); |
| 432 | |
| 433 | // Obj-C exceptions are enabled by default, regardless of -fexceptions. This |
| 434 | // is not necessarily sensible, but follows GCC. |
| 435 | if (types::isObjC(InputType) && |
| 436 | Args.hasFlag(options::OPT_fobjc_exceptions, |
| 437 | options::OPT_fno_objc_exceptions, true)) { |
| 438 | CmdArgs.push_back("-fobjc-exceptions"); |
| 439 | |
| 440 | EH |= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple); |
| 441 | } |
| 442 | |
| 443 | if (types::isCXX(InputType)) { |
| 444 | // Disable C++ EH by default on XCore and PS4. |
| 445 | bool CXXExceptionsEnabled = |
| 446 | Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU(); |
| 447 | Arg *ExceptionArg = Args.getLastArg( |
| 448 | options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions, |
| 449 | options::OPT_fexceptions, options::OPT_fno_exceptions); |
| 450 | if (ExceptionArg) |
| 451 | CXXExceptionsEnabled = |
| 452 | ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) || |
| 453 | ExceptionArg->getOption().matches(options::OPT_fexceptions); |
| 454 | |
| 455 | if (CXXExceptionsEnabled) { |
| 456 | CmdArgs.push_back("-fcxx-exceptions"); |
| 457 | |
| 458 | EH = true; |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | if (EH) |
| 463 | CmdArgs.push_back("-fexceptions"); |
| 464 | } |
| 465 | |
| 466 | static bool ShouldDisableAutolink(const ArgList &Args, const ToolChain &TC) { |
| 467 | bool Default = true; |
| 468 | if (TC.getTriple().isOSDarwin()) { |
| 469 | // The native darwin assembler doesn't support the linker_option directives, |
| 470 | // so we disable them if we think the .s file will be passed to it. |
| 471 | Default = TC.useIntegratedAs(); |
| 472 | } |
| 473 | return !Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink, |
| 474 | Default); |
| 475 | } |
| 476 | |
| 477 | static bool ShouldDisableDwarfDirectory(const ArgList &Args, |
| 478 | const ToolChain &TC) { |
| 479 | bool UseDwarfDirectory = |
| 480 | Args.hasFlag(options::OPT_fdwarf_directory_asm, |
| 481 | options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs()); |
| 482 | return !UseDwarfDirectory; |
| 483 | } |
| 484 | |
| 485 | // Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases |
| 486 | // to the corresponding DebugInfoKind. |
| 487 | static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) { |
| 488 | assert(A.getOption().matches(options::OPT_gN_Group) &&((A.getOption().matches(options::OPT_gN_Group) && "Not a -g option that specifies a debug-info level" ) ? static_cast<void> (0) : __assert_fail ("A.getOption().matches(options::OPT_gN_Group) && \"Not a -g option that specifies a debug-info level\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 489, __PRETTY_FUNCTION__)) |
| 489 | "Not a -g option that specifies a debug-info level")((A.getOption().matches(options::OPT_gN_Group) && "Not a -g option that specifies a debug-info level" ) ? static_cast<void> (0) : __assert_fail ("A.getOption().matches(options::OPT_gN_Group) && \"Not a -g option that specifies a debug-info level\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 489, __PRETTY_FUNCTION__)); |
| 490 | if (A.getOption().matches(options::OPT_g0) || |
| 491 | A.getOption().matches(options::OPT_ggdb0)) |
| 492 | return codegenoptions::NoDebugInfo; |
| 493 | if (A.getOption().matches(options::OPT_gline_tables_only) || |
| 494 | A.getOption().matches(options::OPT_ggdb1)) |
| 495 | return codegenoptions::DebugLineTablesOnly; |
| 496 | if (A.getOption().matches(options::OPT_gline_directives_only)) |
| 497 | return codegenoptions::DebugDirectivesOnly; |
| 498 | return codegenoptions::LimitedDebugInfo; |
| 499 | } |
| 500 | |
| 501 | static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) { |
| 502 | switch (Triple.getArch()){ |
| 503 | default: |
| 504 | return false; |
| 505 | case llvm::Triple::arm: |
| 506 | case llvm::Triple::thumb: |
| 507 | // ARM Darwin targets require a frame pointer to be always present to aid |
| 508 | // offline debugging via backtraces. |
| 509 | return Triple.isOSDarwin(); |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | static bool useFramePointerForTargetByDefault(const ArgList &Args, |
| 514 | const llvm::Triple &Triple) { |
| 515 | switch (Triple.getArch()) { |
| 516 | case llvm::Triple::xcore: |
| 517 | case llvm::Triple::wasm32: |
| 518 | case llvm::Triple::wasm64: |
| 519 | // XCore never wants frame pointers, regardless of OS. |
| 520 | // WebAssembly never wants frame pointers. |
| 521 | return false; |
| 522 | case llvm::Triple::riscv32: |
| 523 | case llvm::Triple::riscv64: |
| 524 | return !areOptimizationsEnabled(Args); |
| 525 | default: |
| 526 | break; |
| 527 | } |
| 528 | |
| 529 | if (Triple.getOS() == llvm::Triple::NetBSD) { |
| 530 | return !areOptimizationsEnabled(Args); |
| 531 | } |
| 532 | |
| 533 | if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI) { |
| 534 | switch (Triple.getArch()) { |
| 535 | // Don't use a frame pointer on linux if optimizing for certain targets. |
| 536 | case llvm::Triple::mips64: |
| 537 | case llvm::Triple::mips64el: |
| 538 | case llvm::Triple::mips: |
| 539 | case llvm::Triple::mipsel: |
| 540 | case llvm::Triple::ppc: |
| 541 | case llvm::Triple::ppc64: |
| 542 | case llvm::Triple::ppc64le: |
| 543 | case llvm::Triple::systemz: |
| 544 | case llvm::Triple::x86: |
| 545 | case llvm::Triple::x86_64: |
| 546 | return !areOptimizationsEnabled(Args); |
| 547 | default: |
| 548 | return true; |
| 549 | } |
| 550 | } |
| 551 | |
| 552 | if (Triple.isOSWindows()) { |
| 553 | switch (Triple.getArch()) { |
| 554 | case llvm::Triple::x86: |
| 555 | return !areOptimizationsEnabled(Args); |
| 556 | case llvm::Triple::x86_64: |
| 557 | return Triple.isOSBinFormatMachO(); |
| 558 | case llvm::Triple::arm: |
| 559 | case llvm::Triple::thumb: |
| 560 | // Windows on ARM builds with FPO disabled to aid fast stack walking |
| 561 | return true; |
| 562 | default: |
| 563 | // All other supported Windows ISAs use xdata unwind information, so frame |
| 564 | // pointers are not generally useful. |
| 565 | return false; |
| 566 | } |
| 567 | } |
| 568 | |
| 569 | return true; |
| 570 | } |
| 571 | |
| 572 | static bool shouldUseFramePointer(const ArgList &Args, |
| 573 | const llvm::Triple &Triple) { |
| 574 | if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer, |
| 575 | options::OPT_fomit_frame_pointer)) |
| 576 | return A->getOption().matches(options::OPT_fno_omit_frame_pointer) || |
| 577 | mustUseNonLeafFramePointerForTarget(Triple); |
| 578 | |
| 579 | if (Args.hasArg(options::OPT_pg)) |
| 580 | return true; |
| 581 | |
| 582 | return useFramePointerForTargetByDefault(Args, Triple); |
| 583 | } |
| 584 | |
| 585 | static bool shouldUseLeafFramePointer(const ArgList &Args, |
| 586 | const llvm::Triple &Triple) { |
| 587 | if (Arg *A = Args.getLastArg(options::OPT_mno_omit_leaf_frame_pointer, |
| 588 | options::OPT_momit_leaf_frame_pointer)) |
| 589 | return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer); |
| 590 | |
| 591 | if (Args.hasArg(options::OPT_pg)) |
| 592 | return true; |
| 593 | |
| 594 | if (Triple.isPS4CPU()) |
| 595 | return false; |
| 596 | |
| 597 | return useFramePointerForTargetByDefault(Args, Triple); |
| 598 | } |
| 599 | |
| 600 | /// Add a CC1 option to specify the debug compilation directory. |
| 601 | static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) { |
| 602 | SmallString<128> cwd; |
| 603 | if (!llvm::sys::fs::current_path(cwd)) { |
| 604 | CmdArgs.push_back("-fdebug-compilation-dir"); |
| 605 | CmdArgs.push_back(Args.MakeArgString(cwd)); |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | /// Add a CC1 and CC1AS option to specify the debug file path prefix map. |
| 610 | static void addDebugPrefixMapArg(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs) { |
| 611 | for (const Arg *A : Args.filtered(options::OPT_fdebug_prefix_map_EQ)) { |
| 612 | StringRef Map = A->getValue(); |
| 613 | if (Map.find('=') == StringRef::npos) |
| 614 | D.Diag(diag::err_drv_invalid_argument_to_fdebug_prefix_map) << Map; |
| 615 | else |
| 616 | CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map)); |
| 617 | A->claim(); |
| 618 | } |
| 619 | } |
| 620 | |
| 621 | /// Vectorize at all optimization levels greater than 1 except for -Oz. |
| 622 | /// For -Oz the loop vectorizer is disable, while the slp vectorizer is enabled. |
| 623 | static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) { |
| 624 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
| 625 | if (A->getOption().matches(options::OPT_O4) || |
| 626 | A->getOption().matches(options::OPT_Ofast)) |
| 627 | return true; |
| 628 | |
| 629 | if (A->getOption().matches(options::OPT_O0)) |
| 630 | return false; |
| 631 | |
| 632 | assert(A->getOption().matches(options::OPT_O) && "Must have a -O flag")((A->getOption().matches(options::OPT_O) && "Must have a -O flag" ) ? static_cast<void> (0) : __assert_fail ("A->getOption().matches(options::OPT_O) && \"Must have a -O flag\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 632, __PRETTY_FUNCTION__)); |
| 633 | |
| 634 | // Vectorize -Os. |
| 635 | StringRef S(A->getValue()); |
| 636 | if (S == "s") |
| 637 | return true; |
| 638 | |
| 639 | // Don't vectorize -Oz, unless it's the slp vectorizer. |
| 640 | if (S == "z") |
| 641 | return isSlpVec; |
| 642 | |
| 643 | unsigned OptLevel = 0; |
| 644 | if (S.getAsInteger(10, OptLevel)) |
| 645 | return false; |
| 646 | |
| 647 | return OptLevel > 1; |
| 648 | } |
| 649 | |
| 650 | return false; |
| 651 | } |
| 652 | |
| 653 | /// Add -x lang to \p CmdArgs for \p Input. |
| 654 | static void addDashXForInput(const ArgList &Args, const InputInfo &Input, |
| 655 | ArgStringList &CmdArgs) { |
| 656 | // When using -verify-pch, we don't want to provide the type |
| 657 | // 'precompiled-header' if it was inferred from the file extension |
| 658 | if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH) |
| 659 | return; |
| 660 | |
| 661 | CmdArgs.push_back("-x"); |
| 662 | if (Args.hasArg(options::OPT_rewrite_objc)) |
| 663 | CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX)); |
| 664 | else { |
| 665 | // Map the driver type to the frontend type. This is mostly an identity |
| 666 | // mapping, except that the distinction between module interface units |
| 667 | // and other source files does not exist at the frontend layer. |
| 668 | const char *ClangType; |
| 669 | switch (Input.getType()) { |
| 670 | case types::TY_CXXModule: |
| 671 | ClangType = "c++"; |
| 672 | break; |
| 673 | case types::TY_PP_CXXModule: |
| 674 | ClangType = "c++-cpp-output"; |
| 675 | break; |
| 676 | default: |
| 677 | ClangType = types::getTypeName(Input.getType()); |
| 678 | break; |
| 679 | } |
| 680 | CmdArgs.push_back(ClangType); |
| 681 | } |
| 682 | } |
| 683 | |
| 684 | static void appendUserToPath(SmallVectorImpl<char> &Result) { |
| 685 | #ifdef LLVM_ON_UNIX1 |
| 686 | const char *Username = getenv("LOGNAME"); |
| 687 | #else |
| 688 | const char *Username = getenv("USERNAME"); |
| 689 | #endif |
| 690 | if (Username) { |
| 691 | // Validate that LoginName can be used in a path, and get its length. |
| 692 | size_t Len = 0; |
| 693 | for (const char *P = Username; *P; ++P, ++Len) { |
| 694 | if (!clang::isAlphanumeric(*P) && *P != '_') { |
| 695 | Username = nullptr; |
| 696 | break; |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | if (Username && Len > 0) { |
| 701 | Result.append(Username, Username + Len); |
| 702 | return; |
| 703 | } |
| 704 | } |
| 705 | |
| 706 | // Fallback to user id. |
| 707 | #ifdef LLVM_ON_UNIX1 |
| 708 | std::string UID = llvm::utostr(getuid()); |
| 709 | #else |
| 710 | // FIXME: Windows seems to have an 'SID' that might work. |
| 711 | std::string UID = "9999"; |
| 712 | #endif |
| 713 | Result.append(UID.begin(), UID.end()); |
| 714 | } |
| 715 | |
| 716 | static void addPGOAndCoverageFlags(Compilation &C, const Driver &D, |
| 717 | const InputInfo &Output, const ArgList &Args, |
| 718 | ArgStringList &CmdArgs) { |
| 719 | |
| 720 | auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate, |
| 721 | options::OPT_fprofile_generate_EQ, |
| 722 | options::OPT_fno_profile_generate); |
| 723 | if (PGOGenerateArg && |
| 724 | PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate)) |
| 725 | PGOGenerateArg = nullptr; |
| 726 | |
| 727 | auto *ProfileGenerateArg = Args.getLastArg( |
| 728 | options::OPT_fprofile_instr_generate, |
| 729 | options::OPT_fprofile_instr_generate_EQ, |
| 730 | options::OPT_fno_profile_instr_generate); |
| 731 | if (ProfileGenerateArg && |
| 732 | ProfileGenerateArg->getOption().matches( |
| 733 | options::OPT_fno_profile_instr_generate)) |
| 734 | ProfileGenerateArg = nullptr; |
| 735 | |
| 736 | if (PGOGenerateArg && ProfileGenerateArg) |
| 737 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 738 | << PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling(); |
| 739 | |
| 740 | auto *ProfileUseArg = getLastProfileUseArg(Args); |
| 741 | |
| 742 | if (PGOGenerateArg && ProfileUseArg) |
| 743 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 744 | << ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling(); |
| 745 | |
| 746 | if (ProfileGenerateArg && ProfileUseArg) |
| 747 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 748 | << ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling(); |
| 749 | |
| 750 | if (ProfileGenerateArg) { |
| 751 | if (ProfileGenerateArg->getOption().matches( |
| 752 | options::OPT_fprofile_instr_generate_EQ)) |
| 753 | CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") + |
| 754 | ProfileGenerateArg->getValue())); |
| 755 | // The default is to use Clang Instrumentation. |
| 756 | CmdArgs.push_back("-fprofile-instrument=clang"); |
| 757 | } |
| 758 | |
| 759 | if (PGOGenerateArg) { |
| 760 | CmdArgs.push_back("-fprofile-instrument=llvm"); |
| 761 | if (PGOGenerateArg->getOption().matches( |
| 762 | options::OPT_fprofile_generate_EQ)) { |
| 763 | SmallString<128> Path(PGOGenerateArg->getValue()); |
| 764 | llvm::sys::path::append(Path, "default_%m.profraw"); |
| 765 | CmdArgs.push_back( |
| 766 | Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path)); |
| 767 | } |
| 768 | } |
| 769 | |
| 770 | if (ProfileUseArg) { |
| 771 | if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ)) |
| 772 | CmdArgs.push_back(Args.MakeArgString( |
| 773 | Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue())); |
| 774 | else if ((ProfileUseArg->getOption().matches( |
| 775 | options::OPT_fprofile_use_EQ) || |
| 776 | ProfileUseArg->getOption().matches( |
| 777 | options::OPT_fprofile_instr_use))) { |
| 778 | SmallString<128> Path( |
| 779 | ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue()); |
| 780 | if (Path.empty() || llvm::sys::fs::is_directory(Path)) |
| 781 | llvm::sys::path::append(Path, "default.profdata"); |
| 782 | CmdArgs.push_back( |
| 783 | Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path)); |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | if (Args.hasArg(options::OPT_ftest_coverage) || |
| 788 | Args.hasArg(options::OPT_coverage)) |
| 789 | CmdArgs.push_back("-femit-coverage-notes"); |
| 790 | if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, |
| 791 | false) || |
| 792 | Args.hasArg(options::OPT_coverage)) |
| 793 | CmdArgs.push_back("-femit-coverage-data"); |
| 794 | |
| 795 | if (Args.hasFlag(options::OPT_fcoverage_mapping, |
| 796 | options::OPT_fno_coverage_mapping, false)) { |
| 797 | if (!ProfileGenerateArg) |
| 798 | D.Diag(clang::diag::err_drv_argument_only_allowed_with) |
| 799 | << "-fcoverage-mapping" |
| 800 | << "-fprofile-instr-generate"; |
| 801 | |
| 802 | CmdArgs.push_back("-fcoverage-mapping"); |
| 803 | } |
| 804 | |
| 805 | if (C.getArgs().hasArg(options::OPT_c) || |
| 806 | C.getArgs().hasArg(options::OPT_S)) { |
| 807 | if (Output.isFilename()) { |
| 808 | CmdArgs.push_back("-coverage-notes-file"); |
| 809 | SmallString<128> OutputFilename; |
| 810 | if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) |
| 811 | OutputFilename = FinalOutput->getValue(); |
| 812 | else |
| 813 | OutputFilename = llvm::sys::path::filename(Output.getBaseInput()); |
| 814 | SmallString<128> CoverageFilename = OutputFilename; |
| 815 | if (llvm::sys::path::is_relative(CoverageFilename)) { |
| 816 | SmallString<128> Pwd; |
| 817 | if (!llvm::sys::fs::current_path(Pwd)) { |
| 818 | llvm::sys::path::append(Pwd, CoverageFilename); |
| 819 | CoverageFilename.swap(Pwd); |
| 820 | } |
| 821 | } |
| 822 | llvm::sys::path::replace_extension(CoverageFilename, "gcno"); |
| 823 | CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); |
| 824 | |
| 825 | // Leave -fprofile-dir= an unused argument unless .gcda emission is |
| 826 | // enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider |
| 827 | // the flag used. There is no -fno-profile-dir, so the user has no |
| 828 | // targeted way to suppress the warning. |
| 829 | if (Args.hasArg(options::OPT_fprofile_arcs) || |
| 830 | Args.hasArg(options::OPT_coverage)) { |
| 831 | CmdArgs.push_back("-coverage-data-file"); |
| 832 | if (Arg *FProfileDir = Args.getLastArg(options::OPT_fprofile_dir)) { |
| 833 | CoverageFilename = FProfileDir->getValue(); |
| 834 | llvm::sys::path::append(CoverageFilename, OutputFilename); |
| 835 | } |
| 836 | llvm::sys::path::replace_extension(CoverageFilename, "gcda"); |
| 837 | CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); |
| 838 | } |
| 839 | } |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | /// Check whether the given input tree contains any compilation actions. |
| 844 | static bool ContainsCompileAction(const Action *A) { |
| 845 | if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A)) |
| 846 | return true; |
| 847 | |
| 848 | for (const auto &AI : A->inputs()) |
| 849 | if (ContainsCompileAction(AI)) |
| 850 | return true; |
| 851 | |
| 852 | return false; |
| 853 | } |
| 854 | |
| 855 | /// Check if -relax-all should be passed to the internal assembler. |
| 856 | /// This is done by default when compiling non-assembler source with -O0. |
| 857 | static bool UseRelaxAll(Compilation &C, const ArgList &Args) { |
| 858 | bool RelaxDefault = true; |
| 859 | |
| 860 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) |
| 861 | RelaxDefault = A->getOption().matches(options::OPT_O0); |
| 862 | |
| 863 | if (RelaxDefault) { |
| 864 | RelaxDefault = false; |
| 865 | for (const auto &Act : C.getActions()) { |
| 866 | if (ContainsCompileAction(Act)) { |
| 867 | RelaxDefault = true; |
| 868 | break; |
| 869 | } |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all, |
| 874 | RelaxDefault); |
| 875 | } |
| 876 | |
| 877 | // Extract the integer N from a string spelled "-dwarf-N", returning 0 |
| 878 | // on mismatch. The StringRef input (rather than an Arg) allows |
| 879 | // for use by the "-Xassembler" option parser. |
| 880 | static unsigned DwarfVersionNum(StringRef ArgValue) { |
| 881 | return llvm::StringSwitch<unsigned>(ArgValue) |
| 882 | .Case("-gdwarf-2", 2) |
| 883 | .Case("-gdwarf-3", 3) |
| 884 | .Case("-gdwarf-4", 4) |
| 885 | .Case("-gdwarf-5", 5) |
| 886 | .Default(0); |
| 887 | } |
| 888 | |
| 889 | static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs, |
| 890 | codegenoptions::DebugInfoKind DebugInfoKind, |
| 891 | unsigned DwarfVersion, |
| 892 | llvm::DebuggerKind DebuggerTuning) { |
| 893 | switch (DebugInfoKind) { |
| 894 | case codegenoptions::DebugDirectivesOnly: |
| 895 | CmdArgs.push_back("-debug-info-kind=line-directives-only"); |
| 896 | break; |
| 897 | case codegenoptions::DebugLineTablesOnly: |
| 898 | CmdArgs.push_back("-debug-info-kind=line-tables-only"); |
| 899 | break; |
| 900 | case codegenoptions::LimitedDebugInfo: |
| 901 | CmdArgs.push_back("-debug-info-kind=limited"); |
| 902 | break; |
| 903 | case codegenoptions::FullDebugInfo: |
| 904 | CmdArgs.push_back("-debug-info-kind=standalone"); |
| 905 | break; |
| 906 | default: |
| 907 | break; |
| 908 | } |
| 909 | if (DwarfVersion > 0) |
| 910 | CmdArgs.push_back( |
| 911 | Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion))); |
| 912 | switch (DebuggerTuning) { |
| 913 | case llvm::DebuggerKind::GDB: |
| 914 | CmdArgs.push_back("-debugger-tuning=gdb"); |
| 915 | break; |
| 916 | case llvm::DebuggerKind::LLDB: |
| 917 | CmdArgs.push_back("-debugger-tuning=lldb"); |
| 918 | break; |
| 919 | case llvm::DebuggerKind::SCE: |
| 920 | CmdArgs.push_back("-debugger-tuning=sce"); |
| 921 | break; |
| 922 | default: |
| 923 | break; |
| 924 | } |
| 925 | } |
| 926 | |
| 927 | static bool checkDebugInfoOption(const Arg *A, const ArgList &Args, |
| 928 | const Driver &D, const ToolChain &TC) { |
| 929 | assert(A && "Expected non-nullptr argument.")((A && "Expected non-nullptr argument.") ? static_cast <void> (0) : __assert_fail ("A && \"Expected non-nullptr argument.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 929, __PRETTY_FUNCTION__)); |
| 930 | if (TC.supportsDebugInfoOption(A)) |
| 931 | return true; |
| 932 | D.Diag(diag::warn_drv_unsupported_debug_info_opt_for_target) |
| 933 | << A->getAsString(Args) << TC.getTripleString(); |
| 934 | return false; |
| 935 | } |
| 936 | |
| 937 | static void RenderDebugInfoCompressionArgs(const ArgList &Args, |
| 938 | ArgStringList &CmdArgs, |
| 939 | const Driver &D, |
| 940 | const ToolChain &TC) { |
| 941 | const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ); |
| 942 | if (!A) |
| 943 | return; |
| 944 | if (checkDebugInfoOption(A, Args, D, TC)) { |
| 945 | if (A->getOption().getID() == options::OPT_gz) { |
| 946 | if (llvm::zlib::isAvailable()) |
| 947 | CmdArgs.push_back("-compress-debug-sections"); |
| 948 | else |
| 949 | D.Diag(diag::warn_debug_compression_unavailable); |
| 950 | return; |
| 951 | } |
| 952 | |
| 953 | StringRef Value = A->getValue(); |
| 954 | if (Value == "none") { |
| 955 | CmdArgs.push_back("-compress-debug-sections=none"); |
| 956 | } else if (Value == "zlib" || Value == "zlib-gnu") { |
| 957 | if (llvm::zlib::isAvailable()) { |
| 958 | CmdArgs.push_back( |
| 959 | Args.MakeArgString("-compress-debug-sections=" + Twine(Value))); |
| 960 | } else { |
| 961 | D.Diag(diag::warn_debug_compression_unavailable); |
| 962 | } |
| 963 | } else { |
| 964 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 965 | << A->getOption().getName() << Value; |
| 966 | } |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | static const char *RelocationModelName(llvm::Reloc::Model Model) { |
| 971 | switch (Model) { |
| 972 | case llvm::Reloc::Static: |
| 973 | return "static"; |
| 974 | case llvm::Reloc::PIC_: |
| 975 | return "pic"; |
| 976 | case llvm::Reloc::DynamicNoPIC: |
| 977 | return "dynamic-no-pic"; |
| 978 | case llvm::Reloc::ROPI: |
| 979 | return "ropi"; |
| 980 | case llvm::Reloc::RWPI: |
| 981 | return "rwpi"; |
| 982 | case llvm::Reloc::ROPI_RWPI: |
| 983 | return "ropi-rwpi"; |
| 984 | } |
| 985 | llvm_unreachable("Unknown Reloc::Model kind")::llvm::llvm_unreachable_internal("Unknown Reloc::Model kind" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 985); |
| 986 | } |
| 987 | |
| 988 | void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA, |
| 989 | const Driver &D, const ArgList &Args, |
| 990 | ArgStringList &CmdArgs, |
| 991 | const InputInfo &Output, |
| 992 | const InputInfoList &Inputs) const { |
| 993 | Arg *A; |
| 994 | const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU(); |
| 995 | |
| 996 | CheckPreprocessingOptions(D, Args); |
| 997 | |
| 998 | Args.AddLastArg(CmdArgs, options::OPT_C); |
| 999 | Args.AddLastArg(CmdArgs, options::OPT_CC); |
| 1000 | |
| 1001 | // Handle dependency file generation. |
| 1002 | if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) || |
| 1003 | (A = Args.getLastArg(options::OPT_MD)) || |
| 1004 | (A = Args.getLastArg(options::OPT_MMD))) { |
| 1005 | // Determine the output location. |
| 1006 | const char *DepFile; |
| 1007 | if (Arg *MF = Args.getLastArg(options::OPT_MF)) { |
| 1008 | DepFile = MF->getValue(); |
| 1009 | C.addFailureResultFile(DepFile, &JA); |
| 1010 | } else if (Output.getType() == types::TY_Dependencies) { |
| 1011 | DepFile = Output.getFilename(); |
| 1012 | } else if (A->getOption().matches(options::OPT_M) || |
| 1013 | A->getOption().matches(options::OPT_MM)) { |
| 1014 | DepFile = "-"; |
| 1015 | } else { |
| 1016 | DepFile = getDependencyFileName(Args, Inputs); |
| 1017 | C.addFailureResultFile(DepFile, &JA); |
| 1018 | } |
| 1019 | CmdArgs.push_back("-dependency-file"); |
| 1020 | CmdArgs.push_back(DepFile); |
| 1021 | |
| 1022 | // Add a default target if one wasn't specified. |
| 1023 | if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) { |
| 1024 | const char *DepTarget; |
| 1025 | |
| 1026 | // If user provided -o, that is the dependency target, except |
| 1027 | // when we are only generating a dependency file. |
| 1028 | Arg *OutputOpt = Args.getLastArg(options::OPT_o); |
| 1029 | if (OutputOpt && Output.getType() != types::TY_Dependencies) { |
| 1030 | DepTarget = OutputOpt->getValue(); |
| 1031 | } else { |
| 1032 | // Otherwise derive from the base input. |
| 1033 | // |
| 1034 | // FIXME: This should use the computed output file location. |
| 1035 | SmallString<128> P(Inputs[0].getBaseInput()); |
| 1036 | llvm::sys::path::replace_extension(P, "o"); |
| 1037 | DepTarget = Args.MakeArgString(llvm::sys::path::filename(P)); |
| 1038 | } |
| 1039 | |
| 1040 | if (!A->getOption().matches(options::OPT_MD) && !A->getOption().matches(options::OPT_MMD)) { |
| 1041 | CmdArgs.push_back("-w"); |
| 1042 | } |
| 1043 | CmdArgs.push_back("-MT"); |
| 1044 | SmallString<128> Quoted; |
| 1045 | QuoteTarget(DepTarget, Quoted); |
| 1046 | CmdArgs.push_back(Args.MakeArgString(Quoted)); |
| 1047 | } |
| 1048 | |
| 1049 | if (A->getOption().matches(options::OPT_M) || |
| 1050 | A->getOption().matches(options::OPT_MD)) |
| 1051 | CmdArgs.push_back("-sys-header-deps"); |
| 1052 | if ((isa<PrecompileJobAction>(JA) && |
| 1053 | !Args.hasArg(options::OPT_fno_module_file_deps)) || |
| 1054 | Args.hasArg(options::OPT_fmodule_file_deps)) |
| 1055 | CmdArgs.push_back("-module-file-deps"); |
| 1056 | } |
| 1057 | |
| 1058 | if (Args.hasArg(options::OPT_MG)) { |
| 1059 | if (!A || A->getOption().matches(options::OPT_MD) || |
| 1060 | A->getOption().matches(options::OPT_MMD)) |
| 1061 | D.Diag(diag::err_drv_mg_requires_m_or_mm); |
| 1062 | CmdArgs.push_back("-MG"); |
| 1063 | } |
| 1064 | |
| 1065 | Args.AddLastArg(CmdArgs, options::OPT_MP); |
| 1066 | Args.AddLastArg(CmdArgs, options::OPT_MV); |
| 1067 | |
| 1068 | // Convert all -MQ <target> args to -MT <quoted target> |
| 1069 | for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) { |
| 1070 | A->claim(); |
| 1071 | |
| 1072 | if (A->getOption().matches(options::OPT_MQ)) { |
| 1073 | CmdArgs.push_back("-MT"); |
| 1074 | SmallString<128> Quoted; |
| 1075 | QuoteTarget(A->getValue(), Quoted); |
| 1076 | CmdArgs.push_back(Args.MakeArgString(Quoted)); |
| 1077 | |
| 1078 | // -MT flag - no change |
| 1079 | } else { |
| 1080 | A->render(Args, CmdArgs); |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | // Add offload include arguments specific for CUDA. This must happen before |
| 1085 | // we -I or -include anything else, because we must pick up the CUDA headers |
| 1086 | // from the particular CUDA installation, rather than from e.g. |
| 1087 | // /usr/local/include. |
| 1088 | if (JA.isOffloading(Action::OFK_Cuda)) |
| 1089 | getToolChain().AddCudaIncludeArgs(Args, CmdArgs); |
| 1090 | |
| 1091 | // Add -i* options, and automatically translate to |
| 1092 | // -include-pch/-include-pth for transparent PCH support. It's |
| 1093 | // wonky, but we include looking for .gch so we can support seamless |
| 1094 | // replacement into a build system already set up to be generating |
| 1095 | // .gch files. |
| 1096 | |
| 1097 | if (getToolChain().getDriver().IsCLMode()) { |
| 1098 | const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc); |
| 1099 | const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu); |
| 1100 | if (YcArg && JA.getKind() >= Action::PrecompileJobClass && |
| 1101 | JA.getKind() <= Action::AssembleJobClass) { |
| 1102 | CmdArgs.push_back(Args.MakeArgString("-building-pch-with-obj")); |
| 1103 | } |
| 1104 | if (YcArg || YuArg) { |
| 1105 | StringRef ThroughHeader = YcArg ? YcArg->getValue() : YuArg->getValue(); |
| 1106 | if (!isa<PrecompileJobAction>(JA)) { |
| 1107 | CmdArgs.push_back("-include-pch"); |
| 1108 | CmdArgs.push_back(Args.MakeArgString(D.GetClPchPath( |
| 1109 | C, !ThroughHeader.empty() |
| 1110 | ? ThroughHeader |
| 1111 | : llvm::sys::path::filename(Inputs[0].getBaseInput())))); |
| 1112 | } |
| 1113 | |
| 1114 | if (ThroughHeader.empty()) { |
| 1115 | CmdArgs.push_back(Args.MakeArgString( |
| 1116 | Twine("-pch-through-hdrstop-") + (YcArg ? "create" : "use"))); |
| 1117 | } else { |
| 1118 | CmdArgs.push_back( |
| 1119 | Args.MakeArgString(Twine("-pch-through-header=") + ThroughHeader)); |
| 1120 | } |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | bool RenderedImplicitInclude = false; |
| 1125 | for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { |
| 1126 | if (A->getOption().matches(options::OPT_include)) { |
| 1127 | // Handling of gcc-style gch precompiled headers. |
| 1128 | bool IsFirstImplicitInclude = !RenderedImplicitInclude; |
| 1129 | RenderedImplicitInclude = true; |
| 1130 | |
| 1131 | // Use PCH if the user requested it. |
| 1132 | bool UsePCH = D.CCCUsePCH; |
| 1133 | |
| 1134 | bool FoundPTH = false; |
| 1135 | bool FoundPCH = false; |
| 1136 | SmallString<128> P(A->getValue()); |
| 1137 | // We want the files to have a name like foo.h.pch. Add a dummy extension |
| 1138 | // so that replace_extension does the right thing. |
| 1139 | P += ".dummy"; |
| 1140 | if (UsePCH) { |
| 1141 | llvm::sys::path::replace_extension(P, "pch"); |
| 1142 | if (llvm::sys::fs::exists(P)) |
| 1143 | FoundPCH = true; |
| 1144 | } |
| 1145 | |
| 1146 | if (!FoundPCH) { |
| 1147 | llvm::sys::path::replace_extension(P, "pth"); |
| 1148 | if (llvm::sys::fs::exists(P)) |
| 1149 | FoundPTH = true; |
| 1150 | } |
| 1151 | |
| 1152 | if (!FoundPCH && !FoundPTH) { |
| 1153 | llvm::sys::path::replace_extension(P, "gch"); |
| 1154 | if (llvm::sys::fs::exists(P)) { |
| 1155 | FoundPCH = UsePCH; |
| 1156 | FoundPTH = !UsePCH; |
| 1157 | } |
| 1158 | } |
| 1159 | |
| 1160 | if (FoundPCH || FoundPTH) { |
| 1161 | if (IsFirstImplicitInclude) { |
| 1162 | A->claim(); |
| 1163 | if (UsePCH) |
| 1164 | CmdArgs.push_back("-include-pch"); |
| 1165 | else |
| 1166 | CmdArgs.push_back("-include-pth"); |
| 1167 | CmdArgs.push_back(Args.MakeArgString(P)); |
| 1168 | continue; |
| 1169 | } else { |
| 1170 | // Ignore the PCH if not first on command line and emit warning. |
| 1171 | D.Diag(diag::warn_drv_pch_not_first_include) << P |
| 1172 | << A->getAsString(Args); |
| 1173 | } |
| 1174 | } |
| 1175 | } else if (A->getOption().matches(options::OPT_isystem_after)) { |
| 1176 | // Handling of paths which must come late. These entries are handled by |
| 1177 | // the toolchain itself after the resource dir is inserted in the right |
| 1178 | // search order. |
| 1179 | // Do not claim the argument so that the use of the argument does not |
| 1180 | // silently go unnoticed on toolchains which do not honour the option. |
| 1181 | continue; |
| 1182 | } |
| 1183 | |
| 1184 | // Not translated, render as usual. |
| 1185 | A->claim(); |
| 1186 | A->render(Args, CmdArgs); |
| 1187 | } |
| 1188 | |
| 1189 | Args.AddAllArgs(CmdArgs, |
| 1190 | {options::OPT_D, options::OPT_U, options::OPT_I_Group, |
| 1191 | options::OPT_F, options::OPT_index_header_map}); |
| 1192 | |
| 1193 | // Add -Wp, and -Xpreprocessor if using the preprocessor. |
| 1194 | |
| 1195 | // FIXME: There is a very unfortunate problem here, some troubled |
| 1196 | // souls abuse -Wp, to pass preprocessor options in gcc syntax. To |
| 1197 | // really support that we would have to parse and then translate |
| 1198 | // those options. :( |
| 1199 | Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA, |
| 1200 | options::OPT_Xpreprocessor); |
| 1201 | |
| 1202 | // -I- is a deprecated GCC feature, reject it. |
| 1203 | if (Arg *A = Args.getLastArg(options::OPT_I_)) |
| 1204 | D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args); |
| 1205 | |
| 1206 | // If we have a --sysroot, and don't have an explicit -isysroot flag, add an |
| 1207 | // -isysroot to the CC1 invocation. |
| 1208 | StringRef sysroot = C.getSysRoot(); |
| 1209 | if (sysroot != "") { |
| 1210 | if (!Args.hasArg(options::OPT_isysroot)) { |
| 1211 | CmdArgs.push_back("-isysroot"); |
| 1212 | CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); |
| 1213 | } |
| 1214 | } |
| 1215 | |
| 1216 | // Parse additional include paths from environment variables. |
| 1217 | // FIXME: We should probably sink the logic for handling these from the |
| 1218 | // frontend into the driver. It will allow deleting 4 otherwise unused flags. |
| 1219 | // CPATH - included following the user specified includes (but prior to |
| 1220 | // builtin and standard includes). |
| 1221 | addDirectoryList(Args, CmdArgs, "-I", "CPATH"); |
| 1222 | // C_INCLUDE_PATH - system includes enabled when compiling C. |
| 1223 | addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH"); |
| 1224 | // CPLUS_INCLUDE_PATH - system includes enabled when compiling C++. |
| 1225 | addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH"); |
| 1226 | // OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC. |
| 1227 | addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH"); |
| 1228 | // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++. |
| 1229 | addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH"); |
| 1230 | |
| 1231 | // While adding the include arguments, we also attempt to retrieve the |
| 1232 | // arguments of related offloading toolchains or arguments that are specific |
| 1233 | // of an offloading programming model. |
| 1234 | |
| 1235 | // Add C++ include arguments, if needed. |
| 1236 | if (types::isCXX(Inputs[0].getType())) |
| 1237 | forAllAssociatedToolChains(C, JA, getToolChain(), |
| 1238 | [&Args, &CmdArgs](const ToolChain &TC) { |
| 1239 | TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs); |
| 1240 | }); |
| 1241 | |
| 1242 | // Add system include arguments for all targets but IAMCU. |
| 1243 | if (!IsIAMCU) |
| 1244 | forAllAssociatedToolChains(C, JA, getToolChain(), |
| 1245 | [&Args, &CmdArgs](const ToolChain &TC) { |
| 1246 | TC.AddClangSystemIncludeArgs(Args, CmdArgs); |
| 1247 | }); |
| 1248 | else { |
| 1249 | // For IAMCU add special include arguments. |
| 1250 | getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs); |
| 1251 | } |
| 1252 | } |
| 1253 | |
| 1254 | // FIXME: Move to target hook. |
| 1255 | static bool isSignedCharDefault(const llvm::Triple &Triple) { |
| 1256 | switch (Triple.getArch()) { |
| 1257 | default: |
| 1258 | return true; |
| 1259 | |
| 1260 | case llvm::Triple::aarch64: |
| 1261 | case llvm::Triple::aarch64_be: |
| 1262 | case llvm::Triple::arm: |
| 1263 | case llvm::Triple::armeb: |
| 1264 | case llvm::Triple::thumb: |
| 1265 | case llvm::Triple::thumbeb: |
| 1266 | if (Triple.isOSDarwin() || Triple.isOSWindows()) |
| 1267 | return true; |
| 1268 | return false; |
| 1269 | |
| 1270 | case llvm::Triple::ppc: |
| 1271 | case llvm::Triple::ppc64: |
| 1272 | if (Triple.isOSDarwin()) |
| 1273 | return true; |
| 1274 | return false; |
| 1275 | |
| 1276 | case llvm::Triple::hexagon: |
| 1277 | case llvm::Triple::ppc64le: |
| 1278 | case llvm::Triple::riscv32: |
| 1279 | case llvm::Triple::riscv64: |
| 1280 | case llvm::Triple::systemz: |
| 1281 | case llvm::Triple::xcore: |
| 1282 | return false; |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | static bool isNoCommonDefault(const llvm::Triple &Triple) { |
| 1287 | switch (Triple.getArch()) { |
| 1288 | default: |
| 1289 | if (Triple.isOSFuchsia()) |
| 1290 | return true; |
| 1291 | return false; |
| 1292 | |
| 1293 | case llvm::Triple::xcore: |
| 1294 | case llvm::Triple::wasm32: |
| 1295 | case llvm::Triple::wasm64: |
| 1296 | return true; |
| 1297 | } |
| 1298 | } |
| 1299 | |
| 1300 | namespace { |
| 1301 | void RenderARMABI(const llvm::Triple &Triple, const ArgList &Args, |
| 1302 | ArgStringList &CmdArgs) { |
| 1303 | // Select the ABI to use. |
| 1304 | // FIXME: Support -meabi. |
| 1305 | // FIXME: Parts of this are duplicated in the backend, unify this somehow. |
| 1306 | const char *ABIName = nullptr; |
| 1307 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) { |
| 1308 | ABIName = A->getValue(); |
| 1309 | } else { |
| 1310 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); |
| 1311 | ABIName = llvm::ARM::computeDefaultTargetABI(Triple, CPU).data(); |
| 1312 | } |
| 1313 | |
| 1314 | CmdArgs.push_back("-target-abi"); |
| 1315 | CmdArgs.push_back(ABIName); |
| 1316 | } |
| 1317 | } |
| 1318 | |
| 1319 | void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args, |
| 1320 | ArgStringList &CmdArgs, bool KernelOrKext) const { |
| 1321 | RenderARMABI(Triple, Args, CmdArgs); |
| 1322 | |
| 1323 | // Determine floating point ABI from the options & target defaults. |
| 1324 | arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args); |
| 1325 | if (ABI == arm::FloatABI::Soft) { |
| 1326 | // Floating point operations and argument passing are soft. |
| 1327 | // FIXME: This changes CPP defines, we need -target-soft-float. |
| 1328 | CmdArgs.push_back("-msoft-float"); |
| 1329 | CmdArgs.push_back("-mfloat-abi"); |
| 1330 | CmdArgs.push_back("soft"); |
| 1331 | } else if (ABI == arm::FloatABI::SoftFP) { |
| 1332 | // Floating point operations are hard, but argument passing is soft. |
| 1333 | CmdArgs.push_back("-mfloat-abi"); |
| 1334 | CmdArgs.push_back("soft"); |
| 1335 | } else { |
| 1336 | // Floating point operations and argument passing are hard. |
| 1337 | assert(ABI == arm::FloatABI::Hard && "Invalid float abi!")((ABI == arm::FloatABI::Hard && "Invalid float abi!") ? static_cast<void> (0) : __assert_fail ("ABI == arm::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1337, __PRETTY_FUNCTION__)); |
| 1338 | CmdArgs.push_back("-mfloat-abi"); |
| 1339 | CmdArgs.push_back("hard"); |
| 1340 | } |
| 1341 | |
| 1342 | // Forward the -mglobal-merge option for explicit control over the pass. |
| 1343 | if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, |
| 1344 | options::OPT_mno_global_merge)) { |
| 1345 | CmdArgs.push_back("-mllvm"); |
| 1346 | if (A->getOption().matches(options::OPT_mno_global_merge)) |
| 1347 | CmdArgs.push_back("-arm-global-merge=false"); |
| 1348 | else |
| 1349 | CmdArgs.push_back("-arm-global-merge=true"); |
| 1350 | } |
| 1351 | |
| 1352 | if (!Args.hasFlag(options::OPT_mimplicit_float, |
| 1353 | options::OPT_mno_implicit_float, true)) |
| 1354 | CmdArgs.push_back("-no-implicit-float"); |
| 1355 | } |
| 1356 | |
| 1357 | void Clang::RenderTargetOptions(const llvm::Triple &EffectiveTriple, |
| 1358 | const ArgList &Args, bool KernelOrKext, |
| 1359 | ArgStringList &CmdArgs) const { |
| 1360 | const ToolChain &TC = getToolChain(); |
| 1361 | |
| 1362 | // Add the target features |
| 1363 | getTargetFeatures(TC, EffectiveTriple, Args, CmdArgs, false); |
| 1364 | |
| 1365 | // Add target specific flags. |
| 1366 | switch (TC.getArch()) { |
| 1367 | default: |
| 1368 | break; |
| 1369 | |
| 1370 | case llvm::Triple::arm: |
| 1371 | case llvm::Triple::armeb: |
| 1372 | case llvm::Triple::thumb: |
| 1373 | case llvm::Triple::thumbeb: |
| 1374 | // Use the effective triple, which takes into account the deployment target. |
| 1375 | AddARMTargetArgs(EffectiveTriple, Args, CmdArgs, KernelOrKext); |
| 1376 | CmdArgs.push_back("-fallow-half-arguments-and-returns"); |
| 1377 | break; |
| 1378 | |
| 1379 | case llvm::Triple::aarch64: |
| 1380 | case llvm::Triple::aarch64_be: |
| 1381 | AddAArch64TargetArgs(Args, CmdArgs); |
| 1382 | CmdArgs.push_back("-fallow-half-arguments-and-returns"); |
| 1383 | break; |
| 1384 | |
| 1385 | case llvm::Triple::mips: |
| 1386 | case llvm::Triple::mipsel: |
| 1387 | case llvm::Triple::mips64: |
| 1388 | case llvm::Triple::mips64el: |
| 1389 | AddMIPSTargetArgs(Args, CmdArgs); |
| 1390 | break; |
| 1391 | |
| 1392 | case llvm::Triple::ppc: |
| 1393 | case llvm::Triple::ppc64: |
| 1394 | case llvm::Triple::ppc64le: |
| 1395 | AddPPCTargetArgs(Args, CmdArgs); |
| 1396 | break; |
| 1397 | |
| 1398 | case llvm::Triple::riscv32: |
| 1399 | case llvm::Triple::riscv64: |
| 1400 | AddRISCVTargetArgs(Args, CmdArgs); |
| 1401 | break; |
| 1402 | |
| 1403 | case llvm::Triple::sparc: |
| 1404 | case llvm::Triple::sparcel: |
| 1405 | case llvm::Triple::sparcv9: |
| 1406 | AddSparcTargetArgs(Args, CmdArgs); |
| 1407 | break; |
| 1408 | |
| 1409 | case llvm::Triple::systemz: |
| 1410 | AddSystemZTargetArgs(Args, CmdArgs); |
| 1411 | break; |
| 1412 | |
| 1413 | case llvm::Triple::x86: |
| 1414 | case llvm::Triple::x86_64: |
| 1415 | AddX86TargetArgs(Args, CmdArgs); |
| 1416 | break; |
| 1417 | |
| 1418 | case llvm::Triple::lanai: |
| 1419 | AddLanaiTargetArgs(Args, CmdArgs); |
| 1420 | break; |
| 1421 | |
| 1422 | case llvm::Triple::hexagon: |
| 1423 | AddHexagonTargetArgs(Args, CmdArgs); |
| 1424 | break; |
| 1425 | |
| 1426 | case llvm::Triple::wasm32: |
| 1427 | case llvm::Triple::wasm64: |
| 1428 | AddWebAssemblyTargetArgs(Args, CmdArgs); |
| 1429 | break; |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | // Parse -mbranch-protection=<protection>[+<protection>]* where |
| 1434 | // <protection> ::= standard | none | [bti,pac-ret[+b-key,+leaf]*] |
| 1435 | // Returns a triple of (return address signing Scope, signing key, require |
| 1436 | // landing pads) |
| 1437 | static std::tuple<StringRef, StringRef, bool> |
| 1438 | ParseAArch64BranchProtection(const Driver &D, const ArgList &Args, |
| 1439 | const Arg *A) { |
| 1440 | StringRef Scope = "none"; |
| 1441 | StringRef Key = "a_key"; |
| 1442 | bool IndirectBranches = false; |
| 1443 | |
| 1444 | StringRef Value = A->getValue(); |
| 1445 | // This maps onto -mbranch-protection=<scope>+<key> |
| 1446 | |
| 1447 | if (Value.equals("standard")) { |
| 1448 | Scope = "non-leaf"; |
| 1449 | Key = "a_key"; |
| 1450 | IndirectBranches = true; |
| 1451 | |
| 1452 | } else if (!Value.equals("none")) { |
| 1453 | SmallVector<StringRef, 4> BranchProtection; |
| 1454 | StringRef(A->getValue()).split(BranchProtection, '+'); |
| 1455 | |
| 1456 | auto Protection = BranchProtection.begin(); |
| 1457 | while (Protection != BranchProtection.end()) { |
| 1458 | if (Protection->equals("bti")) |
| 1459 | IndirectBranches = true; |
| 1460 | else if (Protection->equals("pac-ret")) { |
| 1461 | Scope = "non-leaf"; |
| 1462 | while (++Protection != BranchProtection.end()) { |
| 1463 | // Inner loop as "leaf" and "b-key" options must only appear attached |
| 1464 | // to pac-ret. |
| 1465 | if (Protection->equals("leaf")) |
| 1466 | Scope = "all"; |
| 1467 | else if (Protection->equals("b-key")) |
| 1468 | Key = "b_key"; |
| 1469 | else |
| 1470 | break; |
| 1471 | } |
| 1472 | Protection--; |
| 1473 | } else |
| 1474 | D.Diag(diag::err_invalid_branch_protection) |
| 1475 | << *Protection << A->getAsString(Args); |
| 1476 | Protection++; |
| 1477 | } |
| 1478 | } |
| 1479 | |
| 1480 | return std::make_tuple(Scope, Key, IndirectBranches); |
| 1481 | } |
| 1482 | |
| 1483 | namespace { |
| 1484 | void RenderAArch64ABI(const llvm::Triple &Triple, const ArgList &Args, |
| 1485 | ArgStringList &CmdArgs) { |
| 1486 | const char *ABIName = nullptr; |
| 1487 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
| 1488 | ABIName = A->getValue(); |
| 1489 | else if (Triple.isOSDarwin()) |
| 1490 | ABIName = "darwinpcs"; |
| 1491 | else |
| 1492 | ABIName = "aapcs"; |
| 1493 | |
| 1494 | CmdArgs.push_back("-target-abi"); |
| 1495 | CmdArgs.push_back(ABIName); |
| 1496 | } |
| 1497 | } |
| 1498 | |
| 1499 | void Clang::AddAArch64TargetArgs(const ArgList &Args, |
| 1500 | ArgStringList &CmdArgs) const { |
| 1501 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
| 1502 | |
| 1503 | if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || |
| 1504 | Args.hasArg(options::OPT_mkernel) || |
| 1505 | Args.hasArg(options::OPT_fapple_kext)) |
| 1506 | CmdArgs.push_back("-disable-red-zone"); |
| 1507 | |
| 1508 | if (!Args.hasFlag(options::OPT_mimplicit_float, |
| 1509 | options::OPT_mno_implicit_float, true)) |
| 1510 | CmdArgs.push_back("-no-implicit-float"); |
| 1511 | |
| 1512 | RenderAArch64ABI(Triple, Args, CmdArgs); |
| 1513 | |
| 1514 | if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769, |
| 1515 | options::OPT_mno_fix_cortex_a53_835769)) { |
| 1516 | CmdArgs.push_back("-mllvm"); |
| 1517 | if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769)) |
| 1518 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); |
| 1519 | else |
| 1520 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0"); |
| 1521 | } else if (Triple.isAndroid()) { |
| 1522 | // Enabled A53 errata (835769) workaround by default on android |
| 1523 | CmdArgs.push_back("-mllvm"); |
| 1524 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); |
| 1525 | } |
| 1526 | |
| 1527 | // Forward the -mglobal-merge option for explicit control over the pass. |
| 1528 | if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, |
| 1529 | options::OPT_mno_global_merge)) { |
| 1530 | CmdArgs.push_back("-mllvm"); |
| 1531 | if (A->getOption().matches(options::OPT_mno_global_merge)) |
| 1532 | CmdArgs.push_back("-aarch64-enable-global-merge=false"); |
| 1533 | else |
| 1534 | CmdArgs.push_back("-aarch64-enable-global-merge=true"); |
| 1535 | } |
| 1536 | |
| 1537 | // Enable/disable return address signing and indirect branch targets. |
| 1538 | if (Arg *A = Args.getLastArg(options::OPT_msign_return_address_EQ, |
| 1539 | options::OPT_mbranch_protection_EQ)) { |
| 1540 | |
| 1541 | const Driver &D = getToolChain().getDriver(); |
| 1542 | |
| 1543 | StringRef Scope, Key; |
| 1544 | bool IndirectBranches; |
| 1545 | |
| 1546 | if (A->getOption().matches(options::OPT_msign_return_address_EQ)) { |
| 1547 | Scope = A->getValue(); |
| 1548 | if (!Scope.equals("none") && !Scope.equals("non-leaf") && |
| 1549 | !Scope.equals("all")) |
| 1550 | D.Diag(diag::err_invalid_branch_protection) |
| 1551 | << Scope << A->getAsString(Args); |
| 1552 | Key = "a_key"; |
| 1553 | IndirectBranches = false; |
| 1554 | } else |
| 1555 | std::tie(Scope, Key, IndirectBranches) = |
| 1556 | ParseAArch64BranchProtection(D, Args, A); |
| 1557 | |
| 1558 | CmdArgs.push_back( |
| 1559 | Args.MakeArgString(Twine("-msign-return-address=") + Scope)); |
| 1560 | CmdArgs.push_back( |
| 1561 | Args.MakeArgString(Twine("-msign-return-address-key=") + Key)); |
| 1562 | if (IndirectBranches) |
| 1563 | CmdArgs.push_back("-mbranch-target-enforce"); |
| 1564 | } |
| 1565 | } |
| 1566 | |
| 1567 | void Clang::AddMIPSTargetArgs(const ArgList &Args, |
| 1568 | ArgStringList &CmdArgs) const { |
| 1569 | const Driver &D = getToolChain().getDriver(); |
| 1570 | StringRef CPUName; |
| 1571 | StringRef ABIName; |
| 1572 | const llvm::Triple &Triple = getToolChain().getTriple(); |
| 1573 | mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); |
| 1574 | |
| 1575 | CmdArgs.push_back("-target-abi"); |
| 1576 | CmdArgs.push_back(ABIName.data()); |
| 1577 | |
| 1578 | mips::FloatABI ABI = mips::getMipsFloatABI(D, Args); |
| 1579 | if (ABI == mips::FloatABI::Soft) { |
| 1580 | // Floating point operations and argument passing are soft. |
| 1581 | CmdArgs.push_back("-msoft-float"); |
| 1582 | CmdArgs.push_back("-mfloat-abi"); |
| 1583 | CmdArgs.push_back("soft"); |
| 1584 | } else { |
| 1585 | // Floating point operations and argument passing are hard. |
| 1586 | assert(ABI == mips::FloatABI::Hard && "Invalid float abi!")((ABI == mips::FloatABI::Hard && "Invalid float abi!" ) ? static_cast<void> (0) : __assert_fail ("ABI == mips::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1586, __PRETTY_FUNCTION__)); |
| 1587 | CmdArgs.push_back("-mfloat-abi"); |
| 1588 | CmdArgs.push_back("hard"); |
| 1589 | } |
| 1590 | |
| 1591 | if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) { |
| 1592 | if (A->getOption().matches(options::OPT_mxgot)) { |
| 1593 | CmdArgs.push_back("-mllvm"); |
| 1594 | CmdArgs.push_back("-mxgot"); |
| 1595 | } |
| 1596 | } |
| 1597 | |
| 1598 | if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1, |
| 1599 | options::OPT_mno_ldc1_sdc1)) { |
| 1600 | if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) { |
| 1601 | CmdArgs.push_back("-mllvm"); |
| 1602 | CmdArgs.push_back("-mno-ldc1-sdc1"); |
| 1603 | } |
| 1604 | } |
| 1605 | |
| 1606 | if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division, |
| 1607 | options::OPT_mno_check_zero_division)) { |
| 1608 | if (A->getOption().matches(options::OPT_mno_check_zero_division)) { |
| 1609 | CmdArgs.push_back("-mllvm"); |
| 1610 | CmdArgs.push_back("-mno-check-zero-division"); |
| 1611 | } |
| 1612 | } |
| 1613 | |
| 1614 | if (Arg *A = Args.getLastArg(options::OPT_G)) { |
| 1615 | StringRef v = A->getValue(); |
| 1616 | CmdArgs.push_back("-mllvm"); |
| 1617 | CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v)); |
| 1618 | A->claim(); |
| 1619 | } |
| 1620 | |
| 1621 | Arg *GPOpt = Args.getLastArg(options::OPT_mgpopt, options::OPT_mno_gpopt); |
| 1622 | Arg *ABICalls = |
| 1623 | Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls); |
| 1624 | |
| 1625 | // -mabicalls is the default for many MIPS environments, even with -fno-pic. |
| 1626 | // -mgpopt is the default for static, -fno-pic environments but these two |
| 1627 | // options conflict. We want to be certain that -mno-abicalls -mgpopt is |
| 1628 | // the only case where -mllvm -mgpopt is passed. |
| 1629 | // NOTE: We need a warning here or in the backend to warn when -mgpopt is |
| 1630 | // passed explicitly when compiling something with -mabicalls |
| 1631 | // (implictly) in affect. Currently the warning is in the backend. |
| 1632 | // |
| 1633 | // When the ABI in use is N64, we also need to determine the PIC mode that |
| 1634 | // is in use, as -fno-pic for N64 implies -mno-abicalls. |
| 1635 | bool NoABICalls = |
| 1636 | ABICalls && ABICalls->getOption().matches(options::OPT_mno_abicalls); |
| 1637 | |
| 1638 | llvm::Reloc::Model RelocationModel; |
| 1639 | unsigned PICLevel; |
| 1640 | bool IsPIE; |
| 1641 | std::tie(RelocationModel, PICLevel, IsPIE) = |
| 1642 | ParsePICArgs(getToolChain(), Args); |
| 1643 | |
| 1644 | NoABICalls = NoABICalls || |
| 1645 | (RelocationModel == llvm::Reloc::Static && ABIName == "n64"); |
| 1646 | |
| 1647 | bool WantGPOpt = GPOpt && GPOpt->getOption().matches(options::OPT_mgpopt); |
| 1648 | // We quietly ignore -mno-gpopt as the backend defaults to -mno-gpopt. |
| 1649 | if (NoABICalls && (!GPOpt || WantGPOpt)) { |
| 1650 | CmdArgs.push_back("-mllvm"); |
| 1651 | CmdArgs.push_back("-mgpopt"); |
| 1652 | |
| 1653 | Arg *LocalSData = Args.getLastArg(options::OPT_mlocal_sdata, |
| 1654 | options::OPT_mno_local_sdata); |
| 1655 | Arg *ExternSData = Args.getLastArg(options::OPT_mextern_sdata, |
| 1656 | options::OPT_mno_extern_sdata); |
| 1657 | Arg *EmbeddedData = Args.getLastArg(options::OPT_membedded_data, |
| 1658 | options::OPT_mno_embedded_data); |
| 1659 | if (LocalSData) { |
| 1660 | CmdArgs.push_back("-mllvm"); |
| 1661 | if (LocalSData->getOption().matches(options::OPT_mlocal_sdata)) { |
| 1662 | CmdArgs.push_back("-mlocal-sdata=1"); |
| 1663 | } else { |
| 1664 | CmdArgs.push_back("-mlocal-sdata=0"); |
| 1665 | } |
| 1666 | LocalSData->claim(); |
| 1667 | } |
| 1668 | |
| 1669 | if (ExternSData) { |
| 1670 | CmdArgs.push_back("-mllvm"); |
| 1671 | if (ExternSData->getOption().matches(options::OPT_mextern_sdata)) { |
| 1672 | CmdArgs.push_back("-mextern-sdata=1"); |
| 1673 | } else { |
| 1674 | CmdArgs.push_back("-mextern-sdata=0"); |
| 1675 | } |
| 1676 | ExternSData->claim(); |
| 1677 | } |
| 1678 | |
| 1679 | if (EmbeddedData) { |
| 1680 | CmdArgs.push_back("-mllvm"); |
| 1681 | if (EmbeddedData->getOption().matches(options::OPT_membedded_data)) { |
| 1682 | CmdArgs.push_back("-membedded-data=1"); |
| 1683 | } else { |
| 1684 | CmdArgs.push_back("-membedded-data=0"); |
| 1685 | } |
| 1686 | EmbeddedData->claim(); |
| 1687 | } |
| 1688 | |
| 1689 | } else if ((!ABICalls || (!NoABICalls && ABICalls)) && WantGPOpt) |
| 1690 | D.Diag(diag::warn_drv_unsupported_gpopt) << (ABICalls ? 0 : 1); |
| 1691 | |
| 1692 | if (GPOpt) |
| 1693 | GPOpt->claim(); |
| 1694 | |
| 1695 | if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) { |
| 1696 | StringRef Val = StringRef(A->getValue()); |
| 1697 | if (mips::hasCompactBranches(CPUName)) { |
| 1698 | if (Val == "never" || Val == "always" || Val == "optimal") { |
| 1699 | CmdArgs.push_back("-mllvm"); |
| 1700 | CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val)); |
| 1701 | } else |
| 1702 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 1703 | << A->getOption().getName() << Val; |
| 1704 | } else |
| 1705 | D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName; |
| 1706 | } |
| 1707 | } |
| 1708 | |
| 1709 | void Clang::AddPPCTargetArgs(const ArgList &Args, |
| 1710 | ArgStringList &CmdArgs) const { |
| 1711 | // Select the ABI to use. |
| 1712 | const char *ABIName = nullptr; |
| 1713 | if (getToolChain().getTriple().isOSLinux()) |
| 1714 | switch (getToolChain().getArch()) { |
| 1715 | case llvm::Triple::ppc64: { |
| 1716 | // When targeting a processor that supports QPX, or if QPX is |
| 1717 | // specifically enabled, default to using the ABI that supports QPX (so |
| 1718 | // long as it is not specifically disabled). |
| 1719 | bool HasQPX = false; |
| 1720 | if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) |
| 1721 | HasQPX = A->getValue() == StringRef("a2q"); |
| 1722 | HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX); |
| 1723 | if (HasQPX) { |
| 1724 | ABIName = "elfv1-qpx"; |
| 1725 | break; |
| 1726 | } |
| 1727 | |
| 1728 | ABIName = "elfv1"; |
| 1729 | break; |
| 1730 | } |
| 1731 | case llvm::Triple::ppc64le: |
| 1732 | ABIName = "elfv2"; |
| 1733 | break; |
| 1734 | default: |
| 1735 | break; |
| 1736 | } |
| 1737 | |
| 1738 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
| 1739 | // The ppc64 linux abis are all "altivec" abis by default. Accept and ignore |
| 1740 | // the option if given as we don't have backend support for any targets |
| 1741 | // that don't use the altivec abi. |
| 1742 | if (StringRef(A->getValue()) != "altivec") |
| 1743 | ABIName = A->getValue(); |
| 1744 | |
| 1745 | ppc::FloatABI FloatABI = |
| 1746 | ppc::getPPCFloatABI(getToolChain().getDriver(), Args); |
| 1747 | |
| 1748 | if (FloatABI == ppc::FloatABI::Soft) { |
| 1749 | // Floating point operations and argument passing are soft. |
| 1750 | CmdArgs.push_back("-msoft-float"); |
| 1751 | CmdArgs.push_back("-mfloat-abi"); |
| 1752 | CmdArgs.push_back("soft"); |
| 1753 | } else { |
| 1754 | // Floating point operations and argument passing are hard. |
| 1755 | assert(FloatABI == ppc::FloatABI::Hard && "Invalid float abi!")((FloatABI == ppc::FloatABI::Hard && "Invalid float abi!" ) ? static_cast<void> (0) : __assert_fail ("FloatABI == ppc::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1755, __PRETTY_FUNCTION__)); |
| 1756 | CmdArgs.push_back("-mfloat-abi"); |
| 1757 | CmdArgs.push_back("hard"); |
| 1758 | } |
| 1759 | |
| 1760 | if (ABIName) { |
| 1761 | CmdArgs.push_back("-target-abi"); |
| 1762 | CmdArgs.push_back(ABIName); |
| 1763 | } |
| 1764 | } |
| 1765 | |
| 1766 | void Clang::AddRISCVTargetArgs(const ArgList &Args, |
| 1767 | ArgStringList &CmdArgs) const { |
| 1768 | // FIXME: currently defaults to the soft-float ABIs. Will need to be |
| 1769 | // expanded to select ilp32f, ilp32d, lp64f, lp64d when appropriate. |
| 1770 | const char *ABIName = nullptr; |
| 1771 | const llvm::Triple &Triple = getToolChain().getTriple(); |
| 1772 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
| 1773 | ABIName = A->getValue(); |
| 1774 | else if (Triple.getArch() == llvm::Triple::riscv32) |
| 1775 | ABIName = "ilp32"; |
| 1776 | else if (Triple.getArch() == llvm::Triple::riscv64) |
| 1777 | ABIName = "lp64"; |
| 1778 | else |
| 1779 | llvm_unreachable("Unexpected triple!")::llvm::llvm_unreachable_internal("Unexpected triple!", "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1779); |
| 1780 | |
| 1781 | CmdArgs.push_back("-target-abi"); |
| 1782 | CmdArgs.push_back(ABIName); |
| 1783 | } |
| 1784 | |
| 1785 | void Clang::AddSparcTargetArgs(const ArgList &Args, |
| 1786 | ArgStringList &CmdArgs) const { |
| 1787 | sparc::FloatABI FloatABI = |
| 1788 | sparc::getSparcFloatABI(getToolChain().getDriver(), Args); |
| 1789 | |
| 1790 | if (FloatABI == sparc::FloatABI::Soft) { |
| 1791 | // Floating point operations and argument passing are soft. |
| 1792 | CmdArgs.push_back("-msoft-float"); |
| 1793 | CmdArgs.push_back("-mfloat-abi"); |
| 1794 | CmdArgs.push_back("soft"); |
| 1795 | } else { |
| 1796 | // Floating point operations and argument passing are hard. |
| 1797 | assert(FloatABI == sparc::FloatABI::Hard && "Invalid float abi!")((FloatABI == sparc::FloatABI::Hard && "Invalid float abi!" ) ? static_cast<void> (0) : __assert_fail ("FloatABI == sparc::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1797, __PRETTY_FUNCTION__)); |
| 1798 | CmdArgs.push_back("-mfloat-abi"); |
| 1799 | CmdArgs.push_back("hard"); |
| 1800 | } |
| 1801 | } |
| 1802 | |
| 1803 | void Clang::AddSystemZTargetArgs(const ArgList &Args, |
| 1804 | ArgStringList &CmdArgs) const { |
| 1805 | if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false)) |
| 1806 | CmdArgs.push_back("-mbackchain"); |
| 1807 | } |
| 1808 | |
| 1809 | void Clang::AddX86TargetArgs(const ArgList &Args, |
| 1810 | ArgStringList &CmdArgs) const { |
| 1811 | if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || |
| 1812 | Args.hasArg(options::OPT_mkernel) || |
| 1813 | Args.hasArg(options::OPT_fapple_kext)) |
| 1814 | CmdArgs.push_back("-disable-red-zone"); |
| 1815 | |
| 1816 | if (!Args.hasFlag(options::OPT_mtls_direct_seg_refs, |
| 1817 | options::OPT_mno_tls_direct_seg_refs, true)) |
| 1818 | CmdArgs.push_back("-mno-tls-direct-seg-refs"); |
| 1819 | |
| 1820 | // Default to avoid implicit floating-point for kernel/kext code, but allow |
| 1821 | // that to be overridden with -mno-soft-float. |
| 1822 | bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) || |
| 1823 | Args.hasArg(options::OPT_fapple_kext)); |
| 1824 | if (Arg *A = Args.getLastArg( |
| 1825 | options::OPT_msoft_float, options::OPT_mno_soft_float, |
| 1826 | options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) { |
| 1827 | const Option &O = A->getOption(); |
| 1828 | NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) || |
| 1829 | O.matches(options::OPT_msoft_float)); |
| 1830 | } |
| 1831 | if (NoImplicitFloat) |
| 1832 | CmdArgs.push_back("-no-implicit-float"); |
| 1833 | |
| 1834 | if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { |
| 1835 | StringRef Value = A->getValue(); |
| 1836 | if (Value == "intel" || Value == "att") { |
| 1837 | CmdArgs.push_back("-mllvm"); |
| 1838 | CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); |
| 1839 | } else { |
| 1840 | getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) |
| 1841 | << A->getOption().getName() << Value; |
| 1842 | } |
| 1843 | } else if (getToolChain().getDriver().IsCLMode()) { |
| 1844 | CmdArgs.push_back("-mllvm"); |
| 1845 | CmdArgs.push_back("-x86-asm-syntax=intel"); |
| 1846 | } |
| 1847 | |
| 1848 | // Set flags to support MCU ABI. |
| 1849 | if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) { |
| 1850 | CmdArgs.push_back("-mfloat-abi"); |
| 1851 | CmdArgs.push_back("soft"); |
| 1852 | CmdArgs.push_back("-mstack-alignment=4"); |
| 1853 | } |
| 1854 | } |
| 1855 | |
| 1856 | void Clang::AddHexagonTargetArgs(const ArgList &Args, |
| 1857 | ArgStringList &CmdArgs) const { |
| 1858 | CmdArgs.push_back("-mqdsp6-compat"); |
| 1859 | CmdArgs.push_back("-Wreturn-type"); |
| 1860 | |
| 1861 | if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { |
| 1862 | CmdArgs.push_back("-mllvm"); |
| 1863 | CmdArgs.push_back(Args.MakeArgString("-hexagon-small-data-threshold=" + |
| 1864 | Twine(G.getValue()))); |
| 1865 | } |
| 1866 | |
| 1867 | if (!Args.hasArg(options::OPT_fno_short_enums)) |
| 1868 | CmdArgs.push_back("-fshort-enums"); |
| 1869 | if (Args.getLastArg(options::OPT_mieee_rnd_near)) { |
| 1870 | CmdArgs.push_back("-mllvm"); |
| 1871 | CmdArgs.push_back("-enable-hexagon-ieee-rnd-near"); |
| 1872 | } |
| 1873 | CmdArgs.push_back("-mllvm"); |
| 1874 | CmdArgs.push_back("-machine-sink-split=0"); |
| 1875 | } |
| 1876 | |
| 1877 | void Clang::AddLanaiTargetArgs(const ArgList &Args, |
| 1878 | ArgStringList &CmdArgs) const { |
| 1879 | if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { |
| 1880 | StringRef CPUName = A->getValue(); |
| 1881 | |
| 1882 | CmdArgs.push_back("-target-cpu"); |
| 1883 | CmdArgs.push_back(Args.MakeArgString(CPUName)); |
| 1884 | } |
| 1885 | if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { |
| 1886 | StringRef Value = A->getValue(); |
| 1887 | // Only support mregparm=4 to support old usage. Report error for all other |
| 1888 | // cases. |
| 1889 | int Mregparm; |
| 1890 | if (Value.getAsInteger(10, Mregparm)) { |
| 1891 | if (Mregparm != 4) { |
| 1892 | getToolChain().getDriver().Diag( |
| 1893 | diag::err_drv_unsupported_option_argument) |
| 1894 | << A->getOption().getName() << Value; |
| 1895 | } |
| 1896 | } |
| 1897 | } |
| 1898 | } |
| 1899 | |
| 1900 | void Clang::AddWebAssemblyTargetArgs(const ArgList &Args, |
| 1901 | ArgStringList &CmdArgs) const { |
| 1902 | // Default to "hidden" visibility. |
| 1903 | if (!Args.hasArg(options::OPT_fvisibility_EQ, |
| 1904 | options::OPT_fvisibility_ms_compat)) { |
| 1905 | CmdArgs.push_back("-fvisibility"); |
| 1906 | CmdArgs.push_back("hidden"); |
| 1907 | } |
| 1908 | } |
| 1909 | |
| 1910 | void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename, |
| 1911 | StringRef Target, const InputInfo &Output, |
| 1912 | const InputInfo &Input, const ArgList &Args) const { |
| 1913 | // If this is a dry run, do not create the compilation database file. |
| 1914 | if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) |
| 1915 | return; |
| 1916 | |
| 1917 | using llvm::yaml::escape; |
| 1918 | const Driver &D = getToolChain().getDriver(); |
| 1919 | |
| 1920 | if (!CompilationDatabase) { |
| 1921 | std::error_code EC; |
| 1922 | auto File = llvm::make_unique<llvm::raw_fd_ostream>(Filename, EC, llvm::sys::fs::F_Text); |
| 1923 | if (EC) { |
| 1924 | D.Diag(clang::diag::err_drv_compilationdatabase) << Filename |
| 1925 | << EC.message(); |
| 1926 | return; |
| 1927 | } |
| 1928 | CompilationDatabase = std::move(File); |
| 1929 | } |
| 1930 | auto &CDB = *CompilationDatabase; |
| 1931 | SmallString<128> Buf; |
| 1932 | if (llvm::sys::fs::current_path(Buf)) |
| 1933 | Buf = "."; |
| 1934 | CDB << "{ \"directory\": \"" << escape(Buf) << "\""; |
| 1935 | CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\""; |
| 1936 | CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\""; |
| 1937 | CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\""; |
| 1938 | Buf = "-x"; |
| 1939 | Buf += types::getTypeName(Input.getType()); |
| 1940 | CDB << ", \"" << escape(Buf) << "\""; |
| 1941 | if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) { |
| 1942 | Buf = "--sysroot="; |
| 1943 | Buf += D.SysRoot; |
| 1944 | CDB << ", \"" << escape(Buf) << "\""; |
| 1945 | } |
| 1946 | CDB << ", \"" << escape(Input.getFilename()) << "\""; |
| 1947 | for (auto &A: Args) { |
| 1948 | auto &O = A->getOption(); |
| 1949 | // Skip language selection, which is positional. |
| 1950 | if (O.getID() == options::OPT_x) |
| 1951 | continue; |
| 1952 | // Skip writing dependency output and the compilation database itself. |
| 1953 | if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group) |
| 1954 | continue; |
| 1955 | // Skip inputs. |
| 1956 | if (O.getKind() == Option::InputClass) |
| 1957 | continue; |
| 1958 | // All other arguments are quoted and appended. |
| 1959 | ArgStringList ASL; |
| 1960 | A->render(Args, ASL); |
| 1961 | for (auto &it: ASL) |
| 1962 | CDB << ", \"" << escape(it) << "\""; |
| 1963 | } |
| 1964 | Buf = "--target="; |
| 1965 | Buf += Target; |
| 1966 | CDB << ", \"" << escape(Buf) << "\"]},\n"; |
| 1967 | } |
| 1968 | |
| 1969 | static void CollectArgsForIntegratedAssembler(Compilation &C, |
| 1970 | const ArgList &Args, |
| 1971 | ArgStringList &CmdArgs, |
| 1972 | const Driver &D) { |
| 1973 | if (UseRelaxAll(C, Args)) |
| 1974 | CmdArgs.push_back("-mrelax-all"); |
| 1975 | |
| 1976 | // Only default to -mincremental-linker-compatible if we think we are |
| 1977 | // targeting the MSVC linker. |
| 1978 | bool DefaultIncrementalLinkerCompatible = |
| 1979 | C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment(); |
| 1980 | if (Args.hasFlag(options::OPT_mincremental_linker_compatible, |
| 1981 | options::OPT_mno_incremental_linker_compatible, |
| 1982 | DefaultIncrementalLinkerCompatible)) |
| 1983 | CmdArgs.push_back("-mincremental-linker-compatible"); |
| 1984 | |
| 1985 | switch (C.getDefaultToolChain().getArch()) { |
| 1986 | case llvm::Triple::arm: |
| 1987 | case llvm::Triple::armeb: |
| 1988 | case llvm::Triple::thumb: |
| 1989 | case llvm::Triple::thumbeb: |
| 1990 | if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) { |
| 1991 | StringRef Value = A->getValue(); |
| 1992 | if (Value == "always" || Value == "never" || Value == "arm" || |
| 1993 | Value == "thumb") { |
| 1994 | CmdArgs.push_back("-mllvm"); |
| 1995 | CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value)); |
| 1996 | } else { |
| 1997 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 1998 | << A->getOption().getName() << Value; |
| 1999 | } |
| 2000 | } |
| 2001 | break; |
| 2002 | default: |
| 2003 | break; |
| 2004 | } |
| 2005 | |
| 2006 | // When passing -I arguments to the assembler we sometimes need to |
| 2007 | // unconditionally take the next argument. For example, when parsing |
| 2008 | // '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the |
| 2009 | // -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo' |
| 2010 | // arg after parsing the '-I' arg. |
| 2011 | bool TakeNextArg = false; |
| 2012 | |
| 2013 | bool UseRelaxRelocations = C.getDefaultToolChain().useRelaxRelocations(); |
| 2014 | const char *MipsTargetFeature = nullptr; |
| 2015 | for (const Arg *A : |
| 2016 | Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { |
| 2017 | A->claim(); |
| 2018 | |
| 2019 | for (StringRef Value : A->getValues()) { |
| 2020 | if (TakeNextArg) { |
| 2021 | CmdArgs.push_back(Value.data()); |
| 2022 | TakeNextArg = false; |
| 2023 | continue; |
| 2024 | } |
| 2025 | |
| 2026 | if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() && |
| 2027 | Value == "-mbig-obj") |
| 2028 | continue; // LLVM handles bigobj automatically |
| 2029 | |
| 2030 | switch (C.getDefaultToolChain().getArch()) { |
| 2031 | default: |
| 2032 | break; |
| 2033 | case llvm::Triple::thumb: |
| 2034 | case llvm::Triple::thumbeb: |
| 2035 | case llvm::Triple::arm: |
| 2036 | case llvm::Triple::armeb: |
| 2037 | if (Value == "-mthumb") |
| 2038 | // -mthumb has already been processed in ComputeLLVMTriple() |
| 2039 | // recognize but skip over here. |
| 2040 | continue; |
| 2041 | break; |
| 2042 | case llvm::Triple::mips: |
| 2043 | case llvm::Triple::mipsel: |
| 2044 | case llvm::Triple::mips64: |
| 2045 | case llvm::Triple::mips64el: |
| 2046 | if (Value == "--trap") { |
| 2047 | CmdArgs.push_back("-target-feature"); |
| 2048 | CmdArgs.push_back("+use-tcc-in-div"); |
| 2049 | continue; |
| 2050 | } |
| 2051 | if (Value == "--break") { |
| 2052 | CmdArgs.push_back("-target-feature"); |
| 2053 | CmdArgs.push_back("-use-tcc-in-div"); |
| 2054 | continue; |
| 2055 | } |
| 2056 | if (Value.startswith("-msoft-float")) { |
| 2057 | CmdArgs.push_back("-target-feature"); |
| 2058 | CmdArgs.push_back("+soft-float"); |
| 2059 | continue; |
| 2060 | } |
| 2061 | if (Value.startswith("-mhard-float")) { |
| 2062 | CmdArgs.push_back("-target-feature"); |
| 2063 | CmdArgs.push_back("-soft-float"); |
| 2064 | continue; |
| 2065 | } |
| 2066 | |
| 2067 | MipsTargetFeature = llvm::StringSwitch<const char *>(Value) |
| 2068 | .Case("-mips1", "+mips1") |
| 2069 | .Case("-mips2", "+mips2") |
| 2070 | .Case("-mips3", "+mips3") |
| 2071 | .Case("-mips4", "+mips4") |
| 2072 | .Case("-mips5", "+mips5") |
| 2073 | .Case("-mips32", "+mips32") |
| 2074 | .Case("-mips32r2", "+mips32r2") |
| 2075 | .Case("-mips32r3", "+mips32r3") |
| 2076 | .Case("-mips32r5", "+mips32r5") |
| 2077 | .Case("-mips32r6", "+mips32r6") |
| 2078 | .Case("-mips64", "+mips64") |
| 2079 | .Case("-mips64r2", "+mips64r2") |
| 2080 | .Case("-mips64r3", "+mips64r3") |
| 2081 | .Case("-mips64r5", "+mips64r5") |
| 2082 | .Case("-mips64r6", "+mips64r6") |
| 2083 | .Default(nullptr); |
| 2084 | if (MipsTargetFeature) |
| 2085 | continue; |
| 2086 | } |
| 2087 | |
| 2088 | if (Value == "-force_cpusubtype_ALL") { |
| 2089 | // Do nothing, this is the default and we don't support anything else. |
| 2090 | } else if (Value == "-L") { |
| 2091 | CmdArgs.push_back("-msave-temp-labels"); |
| 2092 | } else if (Value == "--fatal-warnings") { |
| 2093 | CmdArgs.push_back("-massembler-fatal-warnings"); |
| 2094 | } else if (Value == "--noexecstack") { |
| 2095 | CmdArgs.push_back("-mnoexecstack"); |
| 2096 | } else if (Value.startswith("-compress-debug-sections") || |
| 2097 | Value.startswith("--compress-debug-sections") || |
| 2098 | Value == "-nocompress-debug-sections" || |
| 2099 | Value == "--nocompress-debug-sections") { |
| 2100 | CmdArgs.push_back(Value.data()); |
| 2101 | } else if (Value == "-mrelax-relocations=yes" || |
| 2102 | Value == "--mrelax-relocations=yes") { |
| 2103 | UseRelaxRelocations = true; |
| 2104 | } else if (Value == "-mrelax-relocations=no" || |
| 2105 | Value == "--mrelax-relocations=no") { |
| 2106 | UseRelaxRelocations = false; |
| 2107 | } else if (Value.startswith("-I")) { |
| 2108 | CmdArgs.push_back(Value.data()); |
| 2109 | // We need to consume the next argument if the current arg is a plain |
| 2110 | // -I. The next arg will be the include directory. |
| 2111 | if (Value == "-I") |
| 2112 | TakeNextArg = true; |
| 2113 | } else if (Value.startswith("-gdwarf-")) { |
| 2114 | // "-gdwarf-N" options are not cc1as options. |
| 2115 | unsigned DwarfVersion = DwarfVersionNum(Value); |
| 2116 | if (DwarfVersion == 0) { // Send it onward, and let cc1as complain. |
| 2117 | CmdArgs.push_back(Value.data()); |
| 2118 | } else { |
| 2119 | RenderDebugEnablingArgs(Args, CmdArgs, |
| 2120 | codegenoptions::LimitedDebugInfo, |
| 2121 | DwarfVersion, llvm::DebuggerKind::Default); |
| 2122 | } |
| 2123 | } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") || |
| 2124 | Value.startswith("-mhwdiv") || Value.startswith("-march")) { |
| 2125 | // Do nothing, we'll validate it later. |
| 2126 | } else if (Value == "-defsym") { |
| 2127 | if (A->getNumValues() != 2) { |
| 2128 | D.Diag(diag::err_drv_defsym_invalid_format) << Value; |
| 2129 | break; |
| 2130 | } |
| 2131 | const char *S = A->getValue(1); |
| 2132 | auto Pair = StringRef(S).split('='); |
| 2133 | auto Sym = Pair.first; |
| 2134 | auto SVal = Pair.second; |
| 2135 | |
| 2136 | if (Sym.empty() || SVal.empty()) { |
| 2137 | D.Diag(diag::err_drv_defsym_invalid_format) << S; |
| 2138 | break; |
| 2139 | } |
| 2140 | int64_t IVal; |
| 2141 | if (SVal.getAsInteger(0, IVal)) { |
| 2142 | D.Diag(diag::err_drv_defsym_invalid_symval) << SVal; |
| 2143 | break; |
| 2144 | } |
| 2145 | CmdArgs.push_back(Value.data()); |
| 2146 | TakeNextArg = true; |
| 2147 | } else { |
| 2148 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 2149 | << A->getOption().getName() << Value; |
| 2150 | } |
| 2151 | } |
| 2152 | } |
| 2153 | if (UseRelaxRelocations) |
| 2154 | CmdArgs.push_back("--mrelax-relocations"); |
| 2155 | if (MipsTargetFeature != nullptr) { |
| 2156 | CmdArgs.push_back("-target-feature"); |
| 2157 | CmdArgs.push_back(MipsTargetFeature); |
| 2158 | } |
| 2159 | } |
| 2160 | |
| 2161 | static void RenderFloatingPointOptions(const ToolChain &TC, const Driver &D, |
| 2162 | bool OFastEnabled, const ArgList &Args, |
| 2163 | ArgStringList &CmdArgs) { |
| 2164 | // Handle various floating point optimization flags, mapping them to the |
| 2165 | // appropriate LLVM code generation flags. This is complicated by several |
| 2166 | // "umbrella" flags, so we do this by stepping through the flags incrementally |
| 2167 | // adjusting what we think is enabled/disabled, then at the end setting the |
| 2168 | // LLVM flags based on the final state. |
| 2169 | bool HonorINFs = true; |
| 2170 | bool HonorNaNs = true; |
| 2171 | // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes. |
| 2172 | bool MathErrno = TC.IsMathErrnoDefault(); |
| 2173 | bool AssociativeMath = false; |
| 2174 | bool ReciprocalMath = false; |
| 2175 | bool SignedZeros = true; |
| 2176 | bool TrappingMath = true; |
| 2177 | StringRef DenormalFPMath = ""; |
| 2178 | StringRef FPContract = ""; |
| 2179 | |
| 2180 | if (const Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) { |
| 2181 | CmdArgs.push_back("-mlimit-float-precision"); |
| 2182 | CmdArgs.push_back(A->getValue()); |
| 2183 | } |
| 2184 | |
| 2185 | for (const Arg *A : Args) { |
| 2186 | switch (A->getOption().getID()) { |
| 2187 | // If this isn't an FP option skip the claim below |
| 2188 | default: continue; |
| 2189 | |
| 2190 | // Options controlling individual features |
| 2191 | case options::OPT_fhonor_infinities: HonorINFs = true; break; |
| 2192 | case options::OPT_fno_honor_infinities: HonorINFs = false; break; |
| 2193 | case options::OPT_fhonor_nans: HonorNaNs = true; break; |
| 2194 | case options::OPT_fno_honor_nans: HonorNaNs = false; break; |
| 2195 | case options::OPT_fmath_errno: MathErrno = true; break; |
| 2196 | case options::OPT_fno_math_errno: MathErrno = false; break; |
| 2197 | case options::OPT_fassociative_math: AssociativeMath = true; break; |
| 2198 | case options::OPT_fno_associative_math: AssociativeMath = false; break; |
| 2199 | case options::OPT_freciprocal_math: ReciprocalMath = true; break; |
| 2200 | case options::OPT_fno_reciprocal_math: ReciprocalMath = false; break; |
| 2201 | case options::OPT_fsigned_zeros: SignedZeros = true; break; |
| 2202 | case options::OPT_fno_signed_zeros: SignedZeros = false; break; |
| 2203 | case options::OPT_ftrapping_math: TrappingMath = true; break; |
| 2204 | case options::OPT_fno_trapping_math: TrappingMath = false; break; |
| 2205 | |
| 2206 | case options::OPT_fdenormal_fp_math_EQ: |
| 2207 | DenormalFPMath = A->getValue(); |
| 2208 | break; |
| 2209 | |
| 2210 | // Validate and pass through -fp-contract option. |
| 2211 | case options::OPT_ffp_contract: { |
| 2212 | StringRef Val = A->getValue(); |
| 2213 | if (Val == "fast" || Val == "on" || Val == "off") |
| 2214 | FPContract = Val; |
| 2215 | else |
| 2216 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 2217 | << A->getOption().getName() << Val; |
| 2218 | break; |
| 2219 | } |
| 2220 | |
| 2221 | case options::OPT_ffinite_math_only: |
| 2222 | HonorINFs = false; |
| 2223 | HonorNaNs = false; |
| 2224 | break; |
| 2225 | case options::OPT_fno_finite_math_only: |
| 2226 | HonorINFs = true; |
| 2227 | HonorNaNs = true; |
| 2228 | break; |
| 2229 | |
| 2230 | case options::OPT_funsafe_math_optimizations: |
| 2231 | AssociativeMath = true; |
| 2232 | ReciprocalMath = true; |
| 2233 | SignedZeros = false; |
| 2234 | TrappingMath = false; |
| 2235 | break; |
| 2236 | case options::OPT_fno_unsafe_math_optimizations: |
| 2237 | AssociativeMath = false; |
| 2238 | ReciprocalMath = false; |
| 2239 | SignedZeros = true; |
| 2240 | TrappingMath = true; |
| 2241 | // -fno_unsafe_math_optimizations restores default denormal handling |
| 2242 | DenormalFPMath = ""; |
| 2243 | break; |
| 2244 | |
| 2245 | case options::OPT_Ofast: |
| 2246 | // If -Ofast is the optimization level, then -ffast-math should be enabled |
| 2247 | if (!OFastEnabled) |
| 2248 | continue; |
| 2249 | LLVM_FALLTHROUGH[[clang::fallthrough]]; |
| 2250 | case options::OPT_ffast_math: |
| 2251 | HonorINFs = false; |
| 2252 | HonorNaNs = false; |
| 2253 | MathErrno = false; |
| 2254 | AssociativeMath = true; |
| 2255 | ReciprocalMath = true; |
| 2256 | SignedZeros = false; |
| 2257 | TrappingMath = false; |
| 2258 | // If fast-math is set then set the fp-contract mode to fast. |
| 2259 | FPContract = "fast"; |
| 2260 | break; |
| 2261 | case options::OPT_fno_fast_math: |
| 2262 | HonorINFs = true; |
| 2263 | HonorNaNs = true; |
| 2264 | // Turning on -ffast-math (with either flag) removes the need for |
| 2265 | // MathErrno. However, turning *off* -ffast-math merely restores the |
| 2266 | // toolchain default (which may be false). |
| 2267 | MathErrno = TC.IsMathErrnoDefault(); |
| 2268 | AssociativeMath = false; |
| 2269 | ReciprocalMath = false; |
| 2270 | SignedZeros = true; |
| 2271 | TrappingMath = true; |
| 2272 | // -fno_fast_math restores default denormal and fpcontract handling |
| 2273 | DenormalFPMath = ""; |
| 2274 | FPContract = ""; |
| 2275 | break; |
| 2276 | } |
| 2277 | |
| 2278 | // If we handled this option claim it |
| 2279 | A->claim(); |
| 2280 | } |
| 2281 | |
| 2282 | if (!HonorINFs) |
| 2283 | CmdArgs.push_back("-menable-no-infs"); |
| 2284 | |
| 2285 | if (!HonorNaNs) |
| 2286 | CmdArgs.push_back("-menable-no-nans"); |
| 2287 | |
| 2288 | if (MathErrno) |
| 2289 | CmdArgs.push_back("-fmath-errno"); |
| 2290 | |
| 2291 | if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros && |
| 2292 | !TrappingMath) |
| 2293 | CmdArgs.push_back("-menable-unsafe-fp-math"); |
| 2294 | |
| 2295 | if (!SignedZeros) |
| 2296 | CmdArgs.push_back("-fno-signed-zeros"); |
| 2297 | |
| 2298 | if (AssociativeMath && !SignedZeros && !TrappingMath) |
| 2299 | CmdArgs.push_back("-mreassociate"); |
| 2300 | |
| 2301 | if (ReciprocalMath) |
| 2302 | CmdArgs.push_back("-freciprocal-math"); |
| 2303 | |
| 2304 | if (!TrappingMath) |
| 2305 | CmdArgs.push_back("-fno-trapping-math"); |
| 2306 | |
| 2307 | if (!DenormalFPMath.empty()) |
| 2308 | CmdArgs.push_back( |
| 2309 | Args.MakeArgString("-fdenormal-fp-math=" + DenormalFPMath)); |
| 2310 | |
| 2311 | if (!FPContract.empty()) |
| 2312 | CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + FPContract)); |
| 2313 | |
| 2314 | ParseMRecip(D, Args, CmdArgs); |
| 2315 | |
| 2316 | // -ffast-math enables the __FAST_MATH__ preprocessor macro, but check for the |
| 2317 | // individual features enabled by -ffast-math instead of the option itself as |
| 2318 | // that's consistent with gcc's behaviour. |
| 2319 | if (!HonorINFs && !HonorNaNs && !MathErrno && AssociativeMath && |
| 2320 | ReciprocalMath && !SignedZeros && !TrappingMath) |
| 2321 | CmdArgs.push_back("-ffast-math"); |
| 2322 | |
| 2323 | // Handle __FINITE_MATH_ONLY__ similarly. |
| 2324 | if (!HonorINFs && !HonorNaNs) |
| 2325 | CmdArgs.push_back("-ffinite-math-only"); |
| 2326 | |
| 2327 | if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) { |
| 2328 | CmdArgs.push_back("-mfpmath"); |
| 2329 | CmdArgs.push_back(A->getValue()); |
| 2330 | } |
| 2331 | |
| 2332 | // Disable a codegen optimization for floating-point casts. |
| 2333 | if (Args.hasFlag(options::OPT_fno_strict_float_cast_overflow, |
| 2334 | options::OPT_fstrict_float_cast_overflow, false)) |
| 2335 | CmdArgs.push_back("-fno-strict-float-cast-overflow"); |
| 2336 | } |
| 2337 | |
| 2338 | static void RenderAnalyzerOptions(const ArgList &Args, ArgStringList &CmdArgs, |
| 2339 | const llvm::Triple &Triple, |
| 2340 | const InputInfo &Input) { |
| 2341 | // Enable region store model by default. |
| 2342 | CmdArgs.push_back("-analyzer-store=region"); |
| 2343 | |
| 2344 | // Treat blocks as analysis entry points. |
| 2345 | CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks"); |
| 2346 | |
| 2347 | // Add default argument set. |
| 2348 | if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) { |
| 2349 | CmdArgs.push_back("-analyzer-checker=core"); |
| 2350 | CmdArgs.push_back("-analyzer-checker=apiModeling"); |
| 2351 | |
| 2352 | if (!Triple.isWindowsMSVCEnvironment()) { |
| 2353 | CmdArgs.push_back("-analyzer-checker=unix"); |
| 2354 | } else { |
| 2355 | // Enable "unix" checkers that also work on Windows. |
| 2356 | CmdArgs.push_back("-analyzer-checker=unix.API"); |
| 2357 | CmdArgs.push_back("-analyzer-checker=unix.Malloc"); |
| 2358 | CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof"); |
| 2359 | CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator"); |
| 2360 | CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg"); |
| 2361 | CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg"); |
| 2362 | } |
| 2363 | |
| 2364 | // Disable some unix checkers for PS4. |
| 2365 | if (Triple.isPS4CPU()) { |
| 2366 | CmdArgs.push_back("-analyzer-disable-checker=unix.API"); |
| 2367 | CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork"); |
| 2368 | } |
| 2369 | |
| 2370 | if (Triple.isOSDarwin()) |
| 2371 | CmdArgs.push_back("-analyzer-checker=osx"); |
| 2372 | |
| 2373 | CmdArgs.push_back("-analyzer-checker=deadcode"); |
| 2374 | |
| 2375 | if (types::isCXX(Input.getType())) |
| 2376 | CmdArgs.push_back("-analyzer-checker=cplusplus"); |
| 2377 | |
| 2378 | if (!Triple.isPS4CPU()) { |
| 2379 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.UncheckedReturn"); |
| 2380 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw"); |
| 2381 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets"); |
| 2382 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp"); |
| 2383 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp"); |
| 2384 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork"); |
| 2385 | } |
| 2386 | |
| 2387 | // Default nullability checks. |
| 2388 | CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull"); |
| 2389 | CmdArgs.push_back("-analyzer-checker=nullability.NullReturnedFromNonnull"); |
| 2390 | } |
| 2391 | |
| 2392 | // Set the output format. The default is plist, for (lame) historical reasons. |
| 2393 | CmdArgs.push_back("-analyzer-output"); |
| 2394 | if (Arg *A = Args.getLastArg(options::OPT__analyzer_output)) |
| 2395 | CmdArgs.push_back(A->getValue()); |
| 2396 | else |
| 2397 | CmdArgs.push_back("plist"); |
| 2398 | |
| 2399 | // Disable the presentation of standard compiler warnings when using |
| 2400 | // --analyze. We only want to show static analyzer diagnostics or frontend |
| 2401 | // errors. |
| 2402 | CmdArgs.push_back("-w"); |
| 2403 | |
| 2404 | // Add -Xanalyzer arguments when running as analyzer. |
| 2405 | Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer); |
| 2406 | } |
| 2407 | |
| 2408 | static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args, |
| 2409 | ArgStringList &CmdArgs, bool KernelOrKext) { |
| 2410 | const llvm::Triple &EffectiveTriple = TC.getEffectiveTriple(); |
| 2411 | |
| 2412 | // NVPTX doesn't support stack protectors; from the compiler's perspective, it |
| 2413 | // doesn't even have a stack! |
| 2414 | if (EffectiveTriple.isNVPTX()) |
| 2415 | return; |
| 2416 | |
| 2417 | // -stack-protector=0 is default. |
| 2418 | unsigned StackProtectorLevel = 0; |
| 2419 | unsigned DefaultStackProtectorLevel = |
| 2420 | TC.GetDefaultStackProtectorLevel(KernelOrKext); |
| 2421 | |
| 2422 | if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector, |
| 2423 | options::OPT_fstack_protector_all, |
| 2424 | options::OPT_fstack_protector_strong, |
| 2425 | options::OPT_fstack_protector)) { |
| 2426 | if (A->getOption().matches(options::OPT_fstack_protector)) |
| 2427 | StackProtectorLevel = |
| 2428 | std::max<unsigned>(LangOptions::SSPOn, DefaultStackProtectorLevel); |
| 2429 | else if (A->getOption().matches(options::OPT_fstack_protector_strong)) |
| 2430 | StackProtectorLevel = LangOptions::SSPStrong; |
| 2431 | else if (A->getOption().matches(options::OPT_fstack_protector_all)) |
| 2432 | StackProtectorLevel = LangOptions::SSPReq; |
| 2433 | } else { |
| 2434 | StackProtectorLevel = DefaultStackProtectorLevel; |
| 2435 | } |
| 2436 | |
| 2437 | if (StackProtectorLevel) { |
| 2438 | CmdArgs.push_back("-stack-protector"); |
| 2439 | CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel))); |
| 2440 | } |
| 2441 | |
| 2442 | // --param ssp-buffer-size= |
| 2443 | for (const Arg *A : Args.filtered(options::OPT__param)) { |
| 2444 | StringRef Str(A->getValue()); |
| 2445 | if (Str.startswith("ssp-buffer-size=")) { |
| 2446 | if (StackProtectorLevel) { |
| 2447 | CmdArgs.push_back("-stack-protector-buffer-size"); |
| 2448 | // FIXME: Verify the argument is a valid integer. |
| 2449 | CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16))); |
| 2450 | } |
| 2451 | A->claim(); |
| 2452 | } |
| 2453 | } |
| 2454 | } |
| 2455 | |
| 2456 | static void RenderOpenCLOptions(const ArgList &Args, ArgStringList &CmdArgs) { |
| 2457 | const unsigned ForwardedArguments[] = { |
| 2458 | options::OPT_cl_opt_disable, |
| 2459 | options::OPT_cl_strict_aliasing, |
| 2460 | options::OPT_cl_single_precision_constant, |
| 2461 | options::OPT_cl_finite_math_only, |
| 2462 | options::OPT_cl_kernel_arg_info, |
| 2463 | options::OPT_cl_unsafe_math_optimizations, |
| 2464 | options::OPT_cl_fast_relaxed_math, |
| 2465 | options::OPT_cl_mad_enable, |
| 2466 | options::OPT_cl_no_signed_zeros, |
| 2467 | options::OPT_cl_denorms_are_zero, |
| 2468 | options::OPT_cl_fp32_correctly_rounded_divide_sqrt, |
| 2469 | options::OPT_cl_uniform_work_group_size |
| 2470 | }; |
| 2471 | |
| 2472 | if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) { |
| 2473 | std::string CLStdStr = std::string("-cl-std=") + A->getValue(); |
| 2474 | CmdArgs.push_back(Args.MakeArgString(CLStdStr)); |
| 2475 | } |
| 2476 | |
| 2477 | for (const auto &Arg : ForwardedArguments) |
| 2478 | if (const auto *A = Args.getLastArg(Arg)) |
| 2479 | CmdArgs.push_back(Args.MakeArgString(A->getOption().getPrefixedName())); |
| 2480 | } |
| 2481 | |
| 2482 | static void RenderARCMigrateToolOptions(const Driver &D, const ArgList &Args, |
| 2483 | ArgStringList &CmdArgs) { |
| 2484 | bool ARCMTEnabled = false; |
| 2485 | if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) { |
| 2486 | if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check, |
| 2487 | options::OPT_ccc_arcmt_modify, |
| 2488 | options::OPT_ccc_arcmt_migrate)) { |
| 2489 | ARCMTEnabled = true; |
| 2490 | switch (A->getOption().getID()) { |
| 2491 | default: llvm_unreachable("missed a case")::llvm::llvm_unreachable_internal("missed a case", "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 2491); |
| 2492 | case options::OPT_ccc_arcmt_check: |
| 2493 | CmdArgs.push_back("-arcmt-check"); |
| 2494 | break; |
| 2495 | case options::OPT_ccc_arcmt_modify: |
| 2496 | CmdArgs.push_back("-arcmt-modify"); |
| 2497 | break; |
| 2498 | case options::OPT_ccc_arcmt_migrate: |
| 2499 | CmdArgs.push_back("-arcmt-migrate"); |
| 2500 | CmdArgs.push_back("-mt-migrate-directory"); |
| 2501 | CmdArgs.push_back(A->getValue()); |
| 2502 | |
| 2503 | Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output); |
| 2504 | Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors); |
| 2505 | break; |
| 2506 | } |
| 2507 | } |
| 2508 | } else { |
| 2509 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_check); |
| 2510 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify); |
| 2511 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate); |
| 2512 | } |
| 2513 | |
| 2514 | if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) { |
| 2515 | if (ARCMTEnabled) |
| 2516 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 2517 | << A->getAsString(Args) << "-ccc-arcmt-migrate"; |
| 2518 | |
| 2519 | CmdArgs.push_back("-mt-migrate-directory"); |
| 2520 | CmdArgs.push_back(A->getValue()); |
| 2521 | |
| 2522 | if (!Args.hasArg(options::OPT_objcmt_migrate_literals, |
| 2523 | options::OPT_objcmt_migrate_subscripting, |
| 2524 | options::OPT_objcmt_migrate_property)) { |
| 2525 | // None specified, means enable them all. |
| 2526 | CmdArgs.push_back("-objcmt-migrate-literals"); |
| 2527 | CmdArgs.push_back("-objcmt-migrate-subscripting"); |
| 2528 | CmdArgs.push_back("-objcmt-migrate-property"); |
| 2529 | } else { |
| 2530 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); |
| 2531 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); |
| 2532 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); |
| 2533 | } |
| 2534 | } else { |
| 2535 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); |
| 2536 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); |
| 2537 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); |
| 2538 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all); |
| 2539 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property); |
| 2540 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property); |
| 2541 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax); |
| 2542 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation); |
| 2543 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype); |
| 2544 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros); |
| 2545 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance); |
| 2546 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property); |
| 2547 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property); |
| 2548 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly); |
| 2549 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init); |
| 2550 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path); |
| 2551 | } |
| 2552 | } |
| 2553 | |
| 2554 | static void RenderBuiltinOptions(const ToolChain &TC, const llvm::Triple &T, |
| 2555 | const ArgList &Args, ArgStringList &CmdArgs) { |
| 2556 | // -fbuiltin is default unless -mkernel is used. |
| 2557 | bool UseBuiltins = |
| 2558 | Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin, |
| 2559 | !Args.hasArg(options::OPT_mkernel)); |
| 2560 | if (!UseBuiltins) |
| 2561 | CmdArgs.push_back("-fno-builtin"); |
| 2562 | |
| 2563 | // -ffreestanding implies -fno-builtin. |
| 2564 | if (Args.hasArg(options::OPT_ffreestanding)) |
| 2565 | UseBuiltins = false; |
| 2566 | |
| 2567 | // Process the -fno-builtin-* options. |
| 2568 | for (const auto &Arg : Args) { |
| 2569 | const Option &O = Arg->getOption(); |
| 2570 | if (!O.matches(options::OPT_fno_builtin_)) |
| 2571 | continue; |
| 2572 | |
| 2573 | Arg->claim(); |
| 2574 | |
| 2575 | // If -fno-builtin is specified, then there's no need to pass the option to |
| 2576 | // the frontend. |
| 2577 | if (!UseBuiltins) |
| 2578 | continue; |
| 2579 | |
| 2580 | StringRef FuncName = Arg->getValue(); |
| 2581 | CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName)); |
| 2582 | } |
| 2583 | |
| 2584 | // le32-specific flags: |
| 2585 | // -fno-math-builtin: clang should not convert math builtins to intrinsics |
| 2586 | // by default. |
| 2587 | if (TC.getArch() == llvm::Triple::le32) |
| 2588 | CmdArgs.push_back("-fno-math-builtin"); |
| 2589 | } |
| 2590 | |
| 2591 | void Driver::getDefaultModuleCachePath(SmallVectorImpl<char> &Result) { |
| 2592 | llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false, Result); |
| 2593 | llvm::sys::path::append(Result, "org.llvm.clang."); |
| 2594 | appendUserToPath(Result); |
| 2595 | llvm::sys::path::append(Result, "ModuleCache"); |
| 2596 | } |
| 2597 | |
| 2598 | static void RenderModulesOptions(Compilation &C, const Driver &D, |
| 2599 | const ArgList &Args, const InputInfo &Input, |
| 2600 | const InputInfo &Output, |
| 2601 | ArgStringList &CmdArgs, bool &HaveModules) { |
| 2602 | // -fmodules enables the use of precompiled modules (off by default). |
| 2603 | // Users can pass -fno-cxx-modules to turn off modules support for |
| 2604 | // C++/Objective-C++ programs. |
| 2605 | bool HaveClangModules = false; |
| 2606 | if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) { |
| 2607 | bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules, |
| 2608 | options::OPT_fno_cxx_modules, true); |
| 2609 | if (AllowedInCXX || !types::isCXX(Input.getType())) { |
| 2610 | CmdArgs.push_back("-fmodules"); |
| 2611 | HaveClangModules = true; |
| 2612 | } |
| 2613 | } |
| 2614 | |
| 2615 | HaveModules = HaveClangModules; |
| 2616 | if (Args.hasArg(options::OPT_fmodules_ts)) { |
| 2617 | CmdArgs.push_back("-fmodules-ts"); |
| 2618 | HaveModules = true; |
| 2619 | } |
| 2620 | |
| 2621 | // -fmodule-maps enables implicit reading of module map files. By default, |
| 2622 | // this is enabled if we are using Clang's flavor of precompiled modules. |
| 2623 | if (Args.hasFlag(options::OPT_fimplicit_module_maps, |
| 2624 | options::OPT_fno_implicit_module_maps, HaveClangModules)) |
| 2625 | CmdArgs.push_back("-fimplicit-module-maps"); |
| 2626 | |
| 2627 | // -fmodules-decluse checks that modules used are declared so (off by default) |
| 2628 | if (Args.hasFlag(options::OPT_fmodules_decluse, |
| 2629 | options::OPT_fno_modules_decluse, false)) |
| 2630 | CmdArgs.push_back("-fmodules-decluse"); |
| 2631 | |
| 2632 | // -fmodules-strict-decluse is like -fmodule-decluse, but also checks that |
| 2633 | // all #included headers are part of modules. |
| 2634 | if (Args.hasFlag(options::OPT_fmodules_strict_decluse, |
| 2635 | options::OPT_fno_modules_strict_decluse, false)) |
| 2636 | CmdArgs.push_back("-fmodules-strict-decluse"); |
| 2637 | |
| 2638 | // -fno-implicit-modules turns off implicitly compiling modules on demand. |
| 2639 | bool ImplicitModules = false; |
| 2640 | if (!Args.hasFlag(options::OPT_fimplicit_modules, |
| 2641 | options::OPT_fno_implicit_modules, HaveClangModules)) { |
| 2642 | if (HaveModules) |
| 2643 | CmdArgs.push_back("-fno-implicit-modules"); |
| 2644 | } else if (HaveModules) { |
| 2645 | ImplicitModules = true; |
| 2646 | // -fmodule-cache-path specifies where our implicitly-built module files |
| 2647 | // should be written. |
| 2648 | SmallString<128> Path; |
| 2649 | if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path)) |
| 2650 | Path = A->getValue(); |
| 2651 | |
| 2652 | if (C.isForDiagnostics()) { |
| 2653 | // When generating crash reports, we want to emit the modules along with |
| 2654 | // the reproduction sources, so we ignore any provided module path. |
| 2655 | Path = Output.getFilename(); |
| 2656 | llvm::sys::path::replace_extension(Path, ".cache"); |
| 2657 | llvm::sys::path::append(Path, "modules"); |
| 2658 | } else if (Path.empty()) { |
| 2659 | // No module path was provided: use the default. |
| 2660 | Driver::getDefaultModuleCachePath(Path); |
| 2661 | } |
| 2662 | |
| 2663 | const char Arg[] = "-fmodules-cache-path="; |
| 2664 | Path.insert(Path.begin(), Arg, Arg + strlen(Arg)); |
| 2665 | CmdArgs.push_back(Args.MakeArgString(Path)); |
| 2666 | } |
| 2667 | |
| 2668 | if (HaveModules) { |
| 2669 | // -fprebuilt-module-path specifies where to load the prebuilt module files. |
| 2670 | for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) { |
| 2671 | CmdArgs.push_back(Args.MakeArgString( |
| 2672 | std::string("-fprebuilt-module-path=") + A->getValue())); |
| 2673 | A->claim(); |
| 2674 | } |
| 2675 | } |
| 2676 | |
| 2677 | // -fmodule-name specifies the module that is currently being built (or |
| 2678 | // used for header checking by -fmodule-maps). |
| 2679 | Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ); |
| 2680 | |
| 2681 | // -fmodule-map-file can be used to specify files containing module |
| 2682 | // definitions. |
| 2683 | Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file); |
| 2684 | |
| 2685 | // -fbuiltin-module-map can be used to load the clang |
| 2686 | // builtin headers modulemap file. |
| 2687 | if (Args.hasArg(options::OPT_fbuiltin_module_map)) { |
| 2688 | SmallString<128> BuiltinModuleMap(D.ResourceDir); |
| 2689 | llvm::sys::path::append(BuiltinModuleMap, "include"); |
| 2690 | llvm::sys::path::append(BuiltinModuleMap, "module.modulemap"); |
| 2691 | if (llvm::sys::fs::exists(BuiltinModuleMap)) |
| 2692 | CmdArgs.push_back( |
| 2693 | Args.MakeArgString("-fmodule-map-file=" + BuiltinModuleMap)); |
| 2694 | } |
| 2695 | |
| 2696 | // The -fmodule-file=<name>=<file> form specifies the mapping of module |
| 2697 | // names to precompiled module files (the module is loaded only if used). |
| 2698 | // The -fmodule-file=<file> form can be used to unconditionally load |
| 2699 | // precompiled module files (whether used or not). |
| 2700 | if (HaveModules) |
| 2701 | Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file); |
| 2702 | else |
| 2703 | Args.ClaimAllArgs(options::OPT_fmodule_file); |
| 2704 | |
| 2705 | // When building modules and generating crashdumps, we need to dump a module |
| 2706 | // dependency VFS alongside the output. |
| 2707 | if (HaveClangModules && C.isForDiagnostics()) { |
| 2708 | SmallString<128> VFSDir(Output.getFilename()); |
| 2709 | llvm::sys::path::replace_extension(VFSDir, ".cache"); |
| 2710 | // Add the cache directory as a temp so the crash diagnostics pick it up. |
| 2711 | C.addTempFile(Args.MakeArgString(VFSDir)); |
| 2712 | |
| 2713 | llvm::sys::path::append(VFSDir, "vfs"); |
| 2714 | CmdArgs.push_back("-module-dependency-dir"); |
| 2715 | CmdArgs.push_back(Args.MakeArgString(VFSDir)); |
| 2716 | } |
| 2717 | |
| 2718 | if (HaveClangModules) |
| 2719 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path); |
| 2720 | |
| 2721 | // Pass through all -fmodules-ignore-macro arguments. |
| 2722 | Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro); |
| 2723 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval); |
| 2724 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after); |
| 2725 | |
| 2726 | Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp); |
| 2727 | |
| 2728 | if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) { |
| 2729 | if (Args.hasArg(options::OPT_fbuild_session_timestamp)) |
| 2730 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 2731 | << A->getAsString(Args) << "-fbuild-session-timestamp"; |
| 2732 | |
| 2733 | llvm::sys::fs::file_status Status; |
| 2734 | if (llvm::sys::fs::status(A->getValue(), Status)) |
| 2735 | D.Diag(diag::err_drv_no_such_file) << A->getValue(); |
| 2736 | CmdArgs.push_back( |
| 2737 | Args.MakeArgString("-fbuild-session-timestamp=" + |
| 2738 | Twine((uint64_t)Status.getLastModificationTime() |
| 2739 | .time_since_epoch() |
| 2740 | .count()))); |
| 2741 | } |
| 2742 | |
| 2743 | if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) { |
| 2744 | if (!Args.getLastArg(options::OPT_fbuild_session_timestamp, |
| 2745 | options::OPT_fbuild_session_file)) |
| 2746 | D.Diag(diag::err_drv_modules_validate_once_requires_timestamp); |
| 2747 | |
| 2748 | Args.AddLastArg(CmdArgs, |
| 2749 | options::OPT_fmodules_validate_once_per_build_session); |
| 2750 | } |
| 2751 | |
| 2752 | if (Args.hasFlag(options::OPT_fmodules_validate_system_headers, |
| 2753 | options::OPT_fno_modules_validate_system_headers, |
| 2754 | ImplicitModules)) |
| 2755 | CmdArgs.push_back("-fmodules-validate-system-headers"); |
| 2756 | |
| 2757 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation); |
| 2758 | } |
| 2759 | |
| 2760 | static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T, |
| 2761 | ArgStringList &CmdArgs) { |
| 2762 | // -fsigned-char is default. |
| 2763 | if (const Arg *A = Args.getLastArg(options::OPT_fsigned_char, |
| 2764 | options::OPT_fno_signed_char, |
| 2765 | options::OPT_funsigned_char, |
| 2766 | options::OPT_fno_unsigned_char)) { |
| 2767 | if (A->getOption().matches(options::OPT_funsigned_char) || |
| 2768 | A->getOption().matches(options::OPT_fno_signed_char)) { |
| 2769 | CmdArgs.push_back("-fno-signed-char"); |
| 2770 | } |
| 2771 | } else if (!isSignedCharDefault(T)) { |
| 2772 | CmdArgs.push_back("-fno-signed-char"); |
| 2773 | } |
| 2774 | |
| 2775 | if (Args.hasFlag(options::OPT_fchar8__t, options::OPT_fno_char8__t, false)) |
| 2776 | CmdArgs.push_back("-fchar8_t"); |
| 2777 | |
| 2778 | if (const Arg *A = Args.getLastArg(options::OPT_fshort_wchar, |
| 2779 | options::OPT_fno_short_wchar)) { |
| 2780 | if (A->getOption().matches(options::OPT_fshort_wchar)) { |
| 2781 | CmdArgs.push_back("-fwchar-type=short"); |
| 2782 | CmdArgs.push_back("-fno-signed-wchar"); |
| 2783 | } else { |
| 2784 | bool IsARM = T.isARM() || T.isThumb() || T.isAArch64(); |
| 2785 | CmdArgs.push_back("-fwchar-type=int"); |
| 2786 | if (IsARM && !(T.isOSWindows() || T.getOS() == llvm::Triple::NetBSD || |
| 2787 | T.getOS() == llvm::Triple::OpenBSD)) |
| 2788 | CmdArgs.push_back("-fno-signed-wchar"); |
| 2789 | else |
| 2790 | CmdArgs.push_back("-fsigned-wchar"); |
| 2791 | } |
| 2792 | } |
| 2793 | } |
| 2794 | |
| 2795 | static void RenderObjCOptions(const ToolChain &TC, const Driver &D, |
| 2796 | const llvm::Triple &T, const ArgList &Args, |
| 2797 | ObjCRuntime &Runtime, bool InferCovariantReturns, |
| 2798 | const InputInfo &Input, ArgStringList &CmdArgs) { |
| 2799 | const llvm::Triple::ArchType Arch = TC.getArch(); |
| 2800 | |
| 2801 | // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and legacy |
| 2802 | // is the default. Except for deployment target of 10.5, next runtime is |
| 2803 | // always legacy dispatch and -fno-objc-legacy-dispatch gets ignored silently. |
| 2804 | if (Runtime.isNonFragile()) { |
| 2805 | if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch, |
| 2806 | options::OPT_fno_objc_legacy_dispatch, |
| 2807 | Runtime.isLegacyDispatchDefaultForArch(Arch))) { |
| 2808 | if (TC.UseObjCMixedDispatch()) |
| 2809 | CmdArgs.push_back("-fobjc-dispatch-method=mixed"); |
| 2810 | else |
| 2811 | CmdArgs.push_back("-fobjc-dispatch-method=non-legacy"); |
| 2812 | } |
| 2813 | } |
| 2814 | |
| 2815 | // When ObjectiveC legacy runtime is in effect on MacOSX, turn on the option |
| 2816 | // to do Array/Dictionary subscripting by default. |
| 2817 | if (Arch == llvm::Triple::x86 && T.isMacOSX() && |
| 2818 | !T.isMacOSXVersionLT(10, 7) && |
| 2819 | Runtime.getKind() == ObjCRuntime::FragileMacOSX && Runtime.isNeXTFamily()) |
| 2820 | CmdArgs.push_back("-fobjc-subscripting-legacy-runtime"); |
| 2821 | |
| 2822 | // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc. |
| 2823 | // NOTE: This logic is duplicated in ToolChains.cpp. |
| 2824 | if (isObjCAutoRefCount(Args)) { |
| 2825 | TC.CheckObjCARC(); |
| 2826 | |
| 2827 | CmdArgs.push_back("-fobjc-arc"); |
| 2828 | |
| 2829 | // FIXME: It seems like this entire block, and several around it should be |
| 2830 | // wrapped in isObjC, but for now we just use it here as this is where it |
| 2831 | // was being used previously. |
| 2832 | if (types::isCXX(Input.getType()) && types::isObjC(Input.getType())) { |
| 2833 | if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) |
| 2834 | CmdArgs.push_back("-fobjc-arc-cxxlib=libc++"); |
| 2835 | else |
| 2836 | CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++"); |
| 2837 | } |
| 2838 | |
| 2839 | // Allow the user to enable full exceptions code emission. |
| 2840 | // We default off for Objective-C, on for Objective-C++. |
| 2841 | if (Args.hasFlag(options::OPT_fobjc_arc_exceptions, |
| 2842 | options::OPT_fno_objc_arc_exceptions, |
| 2843 | /*default=*/types::isCXX(Input.getType()))) |
| 2844 | CmdArgs.push_back("-fobjc-arc-exceptions"); |
| 2845 | } |
| 2846 | |
| 2847 | // Silence warning for full exception code emission options when explicitly |
| 2848 | // set to use no ARC. |
| 2849 | if (Args.hasArg(options::OPT_fno_objc_arc)) { |
| 2850 | Args.ClaimAllArgs(options::OPT_fobjc_arc_exceptions); |
| 2851 | Args.ClaimAllArgs(options::OPT_fno_objc_arc_exceptions); |
| 2852 | } |
| 2853 | |
| 2854 | // -fobjc-infer-related-result-type is the default, except in the Objective-C |
| 2855 | // rewriter. |
| 2856 | if (InferCovariantReturns) |
| 2857 | CmdArgs.push_back("-fno-objc-infer-related-result-type"); |
| 2858 | |
| 2859 | // Pass down -fobjc-weak or -fno-objc-weak if present. |
| 2860 | if (types::isObjC(Input.getType())) { |
| 2861 | auto WeakArg = |
| 2862 | Args.getLastArg(options::OPT_fobjc_weak, options::OPT_fno_objc_weak); |
| 2863 | if (!WeakArg) { |
| 2864 | // nothing to do |
| 2865 | } else if (!Runtime.allowsWeak()) { |
| 2866 | if (WeakArg->getOption().matches(options::OPT_fobjc_weak)) |
| 2867 | D.Diag(diag::err_objc_weak_unsupported); |
| 2868 | } else { |
| 2869 | WeakArg->render(Args, CmdArgs); |
| 2870 | } |
| 2871 | } |
| 2872 | } |
| 2873 | |
| 2874 | static void RenderDiagnosticsOptions(const Driver &D, const ArgList &Args, |
| 2875 | ArgStringList &CmdArgs) { |
| 2876 | bool CaretDefault = true; |
| 2877 | bool ColumnDefault = true; |
| 2878 | |
| 2879 | if (const Arg *A = Args.getLastArg(options::OPT__SLASH_diagnostics_classic, |
| 2880 | options::OPT__SLASH_diagnostics_column, |
| 2881 | options::OPT__SLASH_diagnostics_caret)) { |
| 2882 | switch (A->getOption().getID()) { |
| 2883 | case options::OPT__SLASH_diagnostics_caret: |
| 2884 | CaretDefault = true; |
| 2885 | ColumnDefault = true; |
| 2886 | break; |
| 2887 | case options::OPT__SLASH_diagnostics_column: |
| 2888 | CaretDefault = false; |
| 2889 | ColumnDefault = true; |
| 2890 | break; |
| 2891 | case options::OPT__SLASH_diagnostics_classic: |
| 2892 | CaretDefault = false; |
| 2893 | ColumnDefault = false; |
| 2894 | break; |
| 2895 | } |
| 2896 | } |
| 2897 | |
| 2898 | // -fcaret-diagnostics is default. |
| 2899 | if (!Args.hasFlag(options::OPT_fcaret_diagnostics, |
| 2900 | options::OPT_fno_caret_diagnostics, CaretDefault)) |
| 2901 | CmdArgs.push_back("-fno-caret-diagnostics"); |
| 2902 | |
| 2903 | // -fdiagnostics-fixit-info is default, only pass non-default. |
| 2904 | if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info, |
| 2905 | options::OPT_fno_diagnostics_fixit_info)) |
| 2906 | CmdArgs.push_back("-fno-diagnostics-fixit-info"); |
| 2907 | |
| 2908 | // Enable -fdiagnostics-show-option by default. |
| 2909 | if (Args.hasFlag(options::OPT_fdiagnostics_show_option, |
| 2910 | options::OPT_fno_diagnostics_show_option)) |
| 2911 | CmdArgs.push_back("-fdiagnostics-show-option"); |
| 2912 | |
| 2913 | if (const Arg *A = |
| 2914 | Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) { |
| 2915 | CmdArgs.push_back("-fdiagnostics-show-category"); |
| 2916 | CmdArgs.push_back(A->getValue()); |
| 2917 | } |
| 2918 | |
| 2919 | if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness, |
| 2920 | options::OPT_fno_diagnostics_show_hotness, false)) |
| 2921 | CmdArgs.push_back("-fdiagnostics-show-hotness"); |
| 2922 | |
| 2923 | if (const Arg *A = |
| 2924 | Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { |
| 2925 | std::string Opt = |
| 2926 | std::string("-fdiagnostics-hotness-threshold=") + A->getValue(); |
| 2927 | CmdArgs.push_back(Args.MakeArgString(Opt)); |
| 2928 | } |
| 2929 | |
| 2930 | if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) { |
| 2931 | CmdArgs.push_back("-fdiagnostics-format"); |
| 2932 | CmdArgs.push_back(A->getValue()); |
| 2933 | } |
| 2934 | |
| 2935 | if (const Arg *A = Args.getLastArg( |
| 2936 | options::OPT_fdiagnostics_show_note_include_stack, |
| 2937 | options::OPT_fno_diagnostics_show_note_include_stack)) { |
| 2938 | const Option &O = A->getOption(); |
| 2939 | if (O.matches(options::OPT_fdiagnostics_show_note_include_stack)) |
| 2940 | CmdArgs.push_back("-fdiagnostics-show-note-include-stack"); |
| 2941 | else |
| 2942 | CmdArgs.push_back("-fno-diagnostics-show-note-include-stack"); |
| 2943 | } |
| 2944 | |
| 2945 | // Color diagnostics are parsed by the driver directly from argv and later |
| 2946 | // re-parsed to construct this job; claim any possible color diagnostic here |
| 2947 | // to avoid warn_drv_unused_argument and diagnose bad |
| 2948 | // OPT_fdiagnostics_color_EQ values. |
| 2949 | for (const Arg *A : Args) { |
| 2950 | const Option &O = A->getOption(); |
| 2951 | if (!O.matches(options::OPT_fcolor_diagnostics) && |
| 2952 | !O.matches(options::OPT_fdiagnostics_color) && |
| 2953 | !O.matches(options::OPT_fno_color_diagnostics) && |
| 2954 | !O.matches(options::OPT_fno_diagnostics_color) && |
| 2955 | !O.matches(options::OPT_fdiagnostics_color_EQ)) |
| 2956 | continue; |
| 2957 | |
| 2958 | if (O.matches(options::OPT_fdiagnostics_color_EQ)) { |
| 2959 | StringRef Value(A->getValue()); |
| 2960 | if (Value != "always" && Value != "never" && Value != "auto") |
| 2961 | D.Diag(diag::err_drv_clang_unsupported) |
| 2962 | << ("-fdiagnostics-color=" + Value).str(); |
| 2963 | } |
| 2964 | A->claim(); |
| 2965 | } |
| 2966 | |
| 2967 | if (D.getDiags().getDiagnosticOptions().ShowColors) |
| 2968 | CmdArgs.push_back("-fcolor-diagnostics"); |
| 2969 | |
| 2970 | if (Args.hasArg(options::OPT_fansi_escape_codes)) |
| 2971 | CmdArgs.push_back("-fansi-escape-codes"); |
| 2972 | |
| 2973 | if (!Args.hasFlag(options::OPT_fshow_source_location, |
| 2974 | options::OPT_fno_show_source_location)) |
| 2975 | CmdArgs.push_back("-fno-show-source-location"); |
| 2976 | |
| 2977 | if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths)) |
| 2978 | CmdArgs.push_back("-fdiagnostics-absolute-paths"); |
| 2979 | |
| 2980 | if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column, |
| 2981 | ColumnDefault)) |
| 2982 | CmdArgs.push_back("-fno-show-column"); |
| 2983 | |
| 2984 | if (!Args.hasFlag(options::OPT_fspell_checking, |
| 2985 | options::OPT_fno_spell_checking)) |
| 2986 | CmdArgs.push_back("-fno-spell-checking"); |
| 2987 | } |
| 2988 | |
| 2989 | static void RenderDebugOptions(const ToolChain &TC, const Driver &D, |
| 2990 | const llvm::Triple &T, const ArgList &Args, |
| 2991 | bool EmitCodeView, bool IsWindowsMSVC, |
| 2992 | ArgStringList &CmdArgs, |
| 2993 | codegenoptions::DebugInfoKind &DebugInfoKind, |
| 2994 | const Arg *&SplitDWARFArg) { |
| 2995 | if (Args.hasFlag(options::OPT_fdebug_info_for_profiling, |
| 2996 | options::OPT_fno_debug_info_for_profiling, false) && |
| 2997 | checkDebugInfoOption( |
| 2998 | Args.getLastArg(options::OPT_fdebug_info_for_profiling), Args, D, TC)) |
| 2999 | CmdArgs.push_back("-fdebug-info-for-profiling"); |
| 3000 | |
| 3001 | // The 'g' groups options involve a somewhat intricate sequence of decisions |
| 3002 | // about what to pass from the driver to the frontend, but by the time they |
| 3003 | // reach cc1 they've been factored into three well-defined orthogonal choices: |
| 3004 | // * what level of debug info to generate |
| 3005 | // * what dwarf version to write |
| 3006 | // * what debugger tuning to use |
| 3007 | // This avoids having to monkey around further in cc1 other than to disable |
| 3008 | // codeview if not running in a Windows environment. Perhaps even that |
| 3009 | // decision should be made in the driver as well though. |
| 3010 | unsigned DWARFVersion = 0; |
| 3011 | llvm::DebuggerKind DebuggerTuning = TC.getDefaultDebuggerTuning(); |
| 3012 | |
| 3013 | bool SplitDWARFInlining = |
| 3014 | Args.hasFlag(options::OPT_fsplit_dwarf_inlining, |
| 3015 | options::OPT_fno_split_dwarf_inlining, true); |
| 3016 | |
| 3017 | Args.ClaimAllArgs(options::OPT_g_Group); |
| 3018 | |
| 3019 | SplitDWARFArg = Args.getLastArg(options::OPT_gsplit_dwarf); |
| 3020 | |
| 3021 | if (SplitDWARFArg && !checkDebugInfoOption(SplitDWARFArg, Args, D, TC)) { |
| 3022 | SplitDWARFArg = nullptr; |
| 3023 | SplitDWARFInlining = false; |
| 3024 | } |
| 3025 | |
| 3026 | if (const Arg *A = Args.getLastArg(options::OPT_g_Group)) { |
| 3027 | if (checkDebugInfoOption(A, Args, D, TC)) { |
| 3028 | // If the last option explicitly specified a debug-info level, use it. |
| 3029 | if (A->getOption().matches(options::OPT_gN_Group)) { |
| 3030 | DebugInfoKind = DebugLevelToInfoKind(*A); |
| 3031 | // If you say "-gsplit-dwarf -gline-tables-only", -gsplit-dwarf loses. |
| 3032 | // But -gsplit-dwarf is not a g_group option, hence we have to check the |
| 3033 | // order explicitly. If -gsplit-dwarf wins, we fix DebugInfoKind later. |
| 3034 | // This gets a bit more complicated if you've disabled inline info in |
| 3035 | // the skeleton CUs (SplitDWARFInlining) - then there's value in |
| 3036 | // composing split-dwarf and line-tables-only, so let those compose |
| 3037 | // naturally in that case. And if you just turned off debug info, |
| 3038 | // (-gsplit-dwarf -g0) - do that. |
| 3039 | if (SplitDWARFArg) { |
| 3040 | if (A->getIndex() > SplitDWARFArg->getIndex()) { |
| 3041 | if (DebugInfoKind == codegenoptions::NoDebugInfo || |
| 3042 | DebugInfoKind == codegenoptions::DebugDirectivesOnly || |
| 3043 | (DebugInfoKind == codegenoptions::DebugLineTablesOnly && |
| 3044 | SplitDWARFInlining)) |
| 3045 | SplitDWARFArg = nullptr; |
| 3046 | } else if (SplitDWARFInlining) |
| 3047 | DebugInfoKind = codegenoptions::NoDebugInfo; |
| 3048 | } |
| 3049 | } else { |
| 3050 | // For any other 'g' option, use Limited. |
| 3051 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 3052 | } |
| 3053 | } else { |
| 3054 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 3055 | } |
| 3056 | } |
| 3057 | |
| 3058 | // If a debugger tuning argument appeared, remember it. |
| 3059 | if (const Arg *A = |
| 3060 | Args.getLastArg(options::OPT_gTune_Group, options::OPT_ggdbN_Group)) { |
| 3061 | if (checkDebugInfoOption(A, Args, D, TC)) { |
| 3062 | if (A->getOption().matches(options::OPT_glldb)) |
| 3063 | DebuggerTuning = llvm::DebuggerKind::LLDB; |
| 3064 | else if (A->getOption().matches(options::OPT_gsce)) |
| 3065 | DebuggerTuning = llvm::DebuggerKind::SCE; |
| 3066 | else |
| 3067 | DebuggerTuning = llvm::DebuggerKind::GDB; |
| 3068 | } |
| 3069 | } |
| 3070 | |
| 3071 | // If a -gdwarf argument appeared, remember it. |
| 3072 | if (const Arg *A = |
| 3073 | Args.getLastArg(options::OPT_gdwarf_2, options::OPT_gdwarf_3, |
| 3074 | options::OPT_gdwarf_4, options::OPT_gdwarf_5)) |
| 3075 | if (checkDebugInfoOption(A, Args, D, TC)) |
| 3076 | DWARFVersion = DwarfVersionNum(A->getSpelling()); |
| 3077 | |
| 3078 | // Forward -gcodeview. EmitCodeView might have been set by CL-compatibility |
| 3079 | // argument parsing. |
| 3080 | if (EmitCodeView) { |
| 3081 | if (const Arg *A = Args.getLastArg(options::OPT_gcodeview)) { |
| 3082 | EmitCodeView = checkDebugInfoOption(A, Args, D, TC); |
| 3083 | if (EmitCodeView) { |
| 3084 | // DWARFVersion remains at 0 if no explicit choice was made. |
| 3085 | CmdArgs.push_back("-gcodeview"); |
| 3086 | } |
| 3087 | } |
| 3088 | } |
| 3089 | |
| 3090 | if (!EmitCodeView && DWARFVersion == 0 && |
| 3091 | DebugInfoKind != codegenoptions::NoDebugInfo) |
| 3092 | DWARFVersion = TC.GetDefaultDwarfVersion(); |
| 3093 | |
| 3094 | // -gline-directives-only supported only for the DWARF debug info. |
| 3095 | if (DWARFVersion == 0 && DebugInfoKind == codegenoptions::DebugDirectivesOnly) |
| 3096 | DebugInfoKind = codegenoptions::NoDebugInfo; |
| 3097 | |
| 3098 | // We ignore flag -gstrict-dwarf for now. |
| 3099 | // And we handle flag -grecord-gcc-switches later with DWARFDebugFlags. |
| 3100 | Args.ClaimAllArgs(options::OPT_g_flags_Group); |
| 3101 | |
| 3102 | // Column info is included by default for everything except SCE and |
| 3103 | // CodeView. Clang doesn't track end columns, just starting columns, which, |
| 3104 | // in theory, is fine for CodeView (and PDB). In practice, however, the |
| 3105 | // Microsoft debuggers don't handle missing end columns well, so it's better |
| 3106 | // not to include any column info. |
| 3107 | if (const Arg *A = Args.getLastArg(options::OPT_gcolumn_info)) |
| 3108 | (void)checkDebugInfoOption(A, Args, D, TC); |
| 3109 | if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info, |
| 3110 | /*Default=*/!EmitCodeView && |
| 3111 | DebuggerTuning != llvm::DebuggerKind::SCE)) |
| 3112 | CmdArgs.push_back("-dwarf-column-info"); |
| 3113 | |
| 3114 | // FIXME: Move backend command line options to the module. |
| 3115 | // If -gline-tables-only or -gline-directives-only is the last option it wins. |
| 3116 | if (const Arg *A = Args.getLastArg(options::OPT_gmodules)) |
| 3117 | if (checkDebugInfoOption(A, Args, D, TC)) { |
| 3118 | if (DebugInfoKind != codegenoptions::DebugLineTablesOnly && |
| 3119 | DebugInfoKind != codegenoptions::DebugDirectivesOnly) { |
| 3120 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 3121 | CmdArgs.push_back("-dwarf-ext-refs"); |
| 3122 | CmdArgs.push_back("-fmodule-format=obj"); |
| 3123 | } |
| 3124 | } |
| 3125 | |
| 3126 | // -gsplit-dwarf should turn on -g and enable the backend dwarf |
| 3127 | // splitting and extraction. |
| 3128 | // FIXME: Currently only works on Linux and Fuchsia. |
| 3129 | if (T.isOSLinux() || T.isOSFuchsia()) { |
| 3130 | if (!SplitDWARFInlining) |
| 3131 | CmdArgs.push_back("-fno-split-dwarf-inlining"); |
| 3132 | |
| 3133 | if (SplitDWARFArg) { |
| 3134 | if (DebugInfoKind == codegenoptions::NoDebugInfo) |
| 3135 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 3136 | CmdArgs.push_back("-enable-split-dwarf"); |
| 3137 | } |
| 3138 | } |
| 3139 | |
| 3140 | // After we've dealt with all combinations of things that could |
| 3141 | // make DebugInfoKind be other than None or DebugLineTablesOnly, |
| 3142 | // figure out if we need to "upgrade" it to standalone debug info. |
| 3143 | // We parse these two '-f' options whether or not they will be used, |
| 3144 | // to claim them even if you wrote "-fstandalone-debug -gline-tables-only" |
| 3145 | bool NeedFullDebug = Args.hasFlag(options::OPT_fstandalone_debug, |
| 3146 | options::OPT_fno_standalone_debug, |
| 3147 | TC.GetDefaultStandaloneDebug()); |
| 3148 | if (const Arg *A = Args.getLastArg(options::OPT_fstandalone_debug)) |
| 3149 | (void)checkDebugInfoOption(A, Args, D, TC); |
| 3150 | if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug) |
| 3151 | DebugInfoKind = codegenoptions::FullDebugInfo; |
| 3152 | |
| 3153 | if (Args.hasFlag(options::OPT_gembed_source, options::OPT_gno_embed_source, |
| 3154 | false)) { |
| 3155 | // Source embedding is a vendor extension to DWARF v5. By now we have |
| 3156 | // checked if a DWARF version was stated explicitly, and have otherwise |
| 3157 | // fallen back to the target default, so if this is still not at least 5 |
| 3158 | // we emit an error. |
| 3159 | const Arg *A = Args.getLastArg(options::OPT_gembed_source); |
| 3160 | if (DWARFVersion < 5) |
| 3161 | D.Diag(diag::err_drv_argument_only_allowed_with) |
| 3162 | << A->getAsString(Args) << "-gdwarf-5"; |
| 3163 | else if (checkDebugInfoOption(A, Args, D, TC)) |
| 3164 | CmdArgs.push_back("-gembed-source"); |
| 3165 | } |
| 3166 | |
| 3167 | RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DWARFVersion, |
| 3168 | DebuggerTuning); |
| 3169 | |
| 3170 | // -fdebug-macro turns on macro debug info generation. |
| 3171 | if (Args.hasFlag(options::OPT_fdebug_macro, options::OPT_fno_debug_macro, |
| 3172 | false)) |
| 3173 | if (checkDebugInfoOption(Args.getLastArg(options::OPT_fdebug_macro), Args, |
| 3174 | D, TC)) |
| 3175 | CmdArgs.push_back("-debug-info-macro"); |
| 3176 | |
| 3177 | // -ggnu-pubnames turns on gnu style pubnames in the backend. |
| 3178 | const auto *PubnamesArg = |
| 3179 | Args.getLastArg(options::OPT_ggnu_pubnames, options::OPT_gno_gnu_pubnames, |
| 3180 | options::OPT_gpubnames, options::OPT_gno_pubnames); |
| 3181 | if (SplitDWARFArg || DebuggerTuning == llvm::DebuggerKind::LLDB || |
| 3182 | (PubnamesArg && checkDebugInfoOption(PubnamesArg, Args, D, TC))) |
| 3183 | if (!PubnamesArg || |
| 3184 | (!PubnamesArg->getOption().matches(options::OPT_gno_gnu_pubnames) && |
| 3185 | !PubnamesArg->getOption().matches(options::OPT_gno_pubnames))) |
| 3186 | CmdArgs.push_back(PubnamesArg && PubnamesArg->getOption().matches( |
| 3187 | options::OPT_gpubnames) |
| 3188 | ? "-gpubnames" |
| 3189 | : "-ggnu-pubnames"); |
| 3190 | |
| 3191 | // -gdwarf-aranges turns on the emission of the aranges section in the |
| 3192 | // backend. |
| 3193 | // Always enabled for SCE tuning. |
| 3194 | bool NeedAranges = DebuggerTuning == llvm::DebuggerKind::SCE; |
| 3195 | if (const Arg *A = Args.getLastArg(options::OPT_gdwarf_aranges)) |
| 3196 | NeedAranges = checkDebugInfoOption(A, Args, D, TC) || NeedAranges; |
| 3197 | if (NeedAranges) { |
| 3198 | CmdArgs.push_back("-mllvm"); |
| 3199 | CmdArgs.push_back("-generate-arange-section"); |
| 3200 | } |
| 3201 | |
| 3202 | if (Args.hasFlag(options::OPT_fdebug_types_section, |
| 3203 | options::OPT_fno_debug_types_section, false)) { |
| 3204 | if (!T.isOSBinFormatELF()) { |
| 3205 | D.Diag(diag::err_drv_unsupported_opt_for_target) |
| 3206 | << Args.getLastArg(options::OPT_fdebug_types_section) |
| 3207 | ->getAsString(Args) |
| 3208 | << T.getTriple(); |
| 3209 | } else if (checkDebugInfoOption( |
| 3210 | Args.getLastArg(options::OPT_fdebug_types_section), Args, D, |
| 3211 | TC)) { |
| 3212 | CmdArgs.push_back("-mllvm"); |
| 3213 | CmdArgs.push_back("-generate-type-units"); |
| 3214 | } |
| 3215 | } |
| 3216 | |
| 3217 | // Decide how to render forward declarations of template instantiations. |
| 3218 | // SCE wants full descriptions, others just get them in the name. |
| 3219 | if (DebuggerTuning == llvm::DebuggerKind::SCE) |
| 3220 | CmdArgs.push_back("-debug-forward-template-params"); |
| 3221 | |
| 3222 | // Do we need to explicitly import anonymous namespaces into the parent |
| 3223 | // scope? |
| 3224 | if (DebuggerTuning == llvm::DebuggerKind::SCE) |
| 3225 | CmdArgs.push_back("-dwarf-explicit-import"); |
| 3226 | |
| 3227 | RenderDebugInfoCompressionArgs(Args, CmdArgs, D, TC); |
| 3228 | } |
| 3229 | |
| 3230 | void Clang::ConstructJob(Compilation &C, const JobAction &JA, |
| 3231 | const InputInfo &Output, const InputInfoList &Inputs, |
| 3232 | const ArgList &Args, const char *LinkingOutput) const { |
| 3233 | const auto &TC = getToolChain(); |
| 3234 | const llvm::Triple &RawTriple = TC.getTriple(); |
| 3235 | const llvm::Triple &Triple = TC.getEffectiveTriple(); |
| 3236 | const std::string &TripleStr = Triple.getTriple(); |
| 3237 | |
| 3238 | bool KernelOrKext = |
| 3239 | Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); |
| 3240 | const Driver &D = TC.getDriver(); |
| 3241 | ArgStringList CmdArgs; |
| 3242 | |
| 3243 | // Check number of inputs for sanity. We need at least one input. |
| 3244 | assert(Inputs.size() >= 1 && "Must have at least one input.")((Inputs.size() >= 1 && "Must have at least one input." ) ? static_cast<void> (0) : __assert_fail ("Inputs.size() >= 1 && \"Must have at least one input.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3244, __PRETTY_FUNCTION__)); |
| 3245 | // CUDA/HIP compilation may have multiple inputs (source file + results of |
| 3246 | // device-side compilations). OpenMP device jobs also take the host IR as a |
| 3247 | // second input. Module precompilation accepts a list of header files to |
| 3248 | // include as part of the module. All other jobs are expected to have exactly |
| 3249 | // one input. |
| 3250 | bool IsCuda = JA.isOffloading(Action::OFK_Cuda); |
| 3251 | bool IsHIP = JA.isOffloading(Action::OFK_HIP); |
| 3252 | bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP); |
| 3253 | bool IsModulePrecompile = |
| 3254 | isa<PrecompileJobAction>(JA) && JA.getType() == types::TY_ModuleFile; |
| 3255 | bool IsHeaderModulePrecompile = isa<HeaderModulePrecompileJobAction>(JA); |
| 3256 | |
| 3257 | // A header module compilation doesn't have a main input file, so invent a |
| 3258 | // fake one as a placeholder. |
| 3259 | // FIXME: Pick the language based on the header file language. |
| 3260 | const char *ModuleName = [&]{ |
| 3261 | auto *ModuleNameArg = Args.getLastArg(options::OPT_fmodule_name_EQ); |
| 3262 | return ModuleNameArg ? ModuleNameArg->getValue() : ""; |
| 3263 | }(); |
| 3264 | InputInfo HeaderModuleInput(types::TY_CXXModule, ModuleName, ModuleName); |
| 3265 | |
| 3266 | const InputInfo &Input = |
| 3267 | IsHeaderModulePrecompile ? HeaderModuleInput : Inputs[0]; |
| 3268 | |
| 3269 | InputInfoList ModuleHeaderInputs; |
| 3270 | const InputInfo *CudaDeviceInput = nullptr; |
| 3271 | const InputInfo *OpenMPDeviceInput = nullptr; |
| 3272 | for (const InputInfo &I : Inputs) { |
| 3273 | if (&I == &Input) { |
| 3274 | // This is the primary input. |
| 3275 | } else if (IsModulePrecompile && |
| 3276 | types::getPrecompiledType(I.getType()) == types::TY_PCH) { |
| 3277 | types::ID Expected = |
| 3278 | types::lookupHeaderTypeForSourceType(Inputs[0].getType()); |
| 3279 | if (I.getType() != Expected) { |
| 3280 | D.Diag(diag::err_drv_module_header_wrong_kind) |
| 3281 | << I.getFilename() << types::getTypeName(I.getType()) |
| 3282 | << types::getTypeName(Expected); |
| 3283 | } |
| 3284 | ModuleHeaderInputs.push_back(I); |
| 3285 | } else if ((IsCuda || IsHIP) && !CudaDeviceInput) { |
| 3286 | CudaDeviceInput = &I; |
| 3287 | } else if (IsOpenMPDevice && !OpenMPDeviceInput) { |
| 3288 | OpenMPDeviceInput = &I; |
| 3289 | } else { |
| 3290 | llvm_unreachable("unexpectedly given multiple inputs")::llvm::llvm_unreachable_internal("unexpectedly given multiple inputs" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3290); |
| 3291 | } |
| 3292 | } |
| 3293 | |
| 3294 | const llvm::Triple *AuxTriple = IsCuda ? TC.getAuxTriple() : nullptr; |
| 3295 | bool IsWindowsGNU = RawTriple.isWindowsGNUEnvironment(); |
| 3296 | bool IsWindowsCygnus = RawTriple.isWindowsCygwinEnvironment(); |
| 3297 | bool IsWindowsMSVC = RawTriple.isWindowsMSVCEnvironment(); |
| 3298 | bool IsIAMCU = RawTriple.isOSIAMCU(); |
| 3299 | |
| 3300 | // Adjust IsWindowsXYZ for CUDA/HIP compilations. Even when compiling in |
| 3301 | // device mode (i.e., getToolchain().getTriple() is NVPTX/AMDGCN, not |
| 3302 | // Windows), we need to pass Windows-specific flags to cc1. |
| 3303 | if (IsCuda || IsHIP) { |
| 3304 | IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment(); |
| 3305 | IsWindowsGNU |= AuxTriple && AuxTriple->isWindowsGNUEnvironment(); |
Value stored to 'IsWindowsGNU' is never read | |
| 3306 | IsWindowsCygnus |= AuxTriple && AuxTriple->isWindowsCygwinEnvironment(); |
| 3307 | } |
| 3308 | |
| 3309 | // C++ is not supported for IAMCU. |
| 3310 | if (IsIAMCU && types::isCXX(Input.getType())) |
| 3311 | D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU"; |
| 3312 | |
| 3313 | // Invoke ourselves in -cc1 mode. |
| 3314 | // |
| 3315 | // FIXME: Implement custom jobs for internal actions. |
| 3316 | CmdArgs.push_back("-cc1"); |
| 3317 | |
| 3318 | // Add the "effective" target triple. |
| 3319 | CmdArgs.push_back("-triple"); |
| 3320 | CmdArgs.push_back(Args.MakeArgString(TripleStr)); |
| 3321 | |
| 3322 | if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) { |
| 3323 | DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args); |
| 3324 | Args.ClaimAllArgs(options::OPT_MJ); |
| 3325 | } |
| 3326 | |
| 3327 | if (IsCuda || IsHIP) { |
| 3328 | // We have to pass the triple of the host if compiling for a CUDA/HIP device |
| 3329 | // and vice-versa. |
| 3330 | std::string NormalizedTriple; |
| 3331 | if (JA.isDeviceOffloading(Action::OFK_Cuda) || |
| 3332 | JA.isDeviceOffloading(Action::OFK_HIP)) |
| 3333 | NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>() |
| 3334 | ->getTriple() |
| 3335 | .normalize(); |
| 3336 | else |
| 3337 | NormalizedTriple = |
| 3338 | (IsCuda ? C.getSingleOffloadToolChain<Action::OFK_Cuda>() |
| 3339 | : C.getSingleOffloadToolChain<Action::OFK_HIP>()) |
| 3340 | ->getTriple() |
| 3341 | .normalize(); |
| 3342 | |
| 3343 | CmdArgs.push_back("-aux-triple"); |
| 3344 | CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); |
| 3345 | } |
| 3346 | |
| 3347 | if (IsOpenMPDevice) { |
| 3348 | // We have to pass the triple of the host if compiling for an OpenMP device. |
| 3349 | std::string NormalizedTriple = |
| 3350 | C.getSingleOffloadToolChain<Action::OFK_Host>() |
| 3351 | ->getTriple() |
| 3352 | .normalize(); |
| 3353 | CmdArgs.push_back("-aux-triple"); |
| 3354 | CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); |
| 3355 | } |
| 3356 | |
| 3357 | if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm || |
| 3358 | Triple.getArch() == llvm::Triple::thumb)) { |
| 3359 | unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6; |
| 3360 | unsigned Version; |
| 3361 | Triple.getArchName().substr(Offset).getAsInteger(10, Version); |
| 3362 | if (Version < 7) |
| 3363 | D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName() |
| 3364 | << TripleStr; |
| 3365 | } |
| 3366 | |
| 3367 | // Push all default warning arguments that are specific to |
| 3368 | // the given target. These come before user provided warning options |
| 3369 | // are provided. |
| 3370 | TC.addClangWarningOptions(CmdArgs); |
| 3371 | |
| 3372 | // Select the appropriate action. |
| 3373 | RewriteKind rewriteKind = RK_None; |
| 3374 | |
| 3375 | if (isa<AnalyzeJobAction>(JA)) { |
| 3376 | assert(JA.getType() == types::TY_Plist && "Invalid output type.")((JA.getType() == types::TY_Plist && "Invalid output type." ) ? static_cast<void> (0) : __assert_fail ("JA.getType() == types::TY_Plist && \"Invalid output type.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3376, __PRETTY_FUNCTION__)); |
| 3377 | CmdArgs.push_back("-analyze"); |
| 3378 | } else if (isa<MigrateJobAction>(JA)) { |
| 3379 | CmdArgs.push_back("-migrate"); |
| 3380 | } else if (isa<PreprocessJobAction>(JA)) { |
| 3381 | if (Output.getType() == types::TY_Dependencies) |
| 3382 | CmdArgs.push_back("-Eonly"); |
| 3383 | else { |
| 3384 | CmdArgs.push_back("-E"); |
| 3385 | if (Args.hasArg(options::OPT_rewrite_objc) && |
| 3386 | !Args.hasArg(options::OPT_g_Group)) |
| 3387 | CmdArgs.push_back("-P"); |
| 3388 | } |
| 3389 | } else if (isa<AssembleJobAction>(JA)) { |
| 3390 | CmdArgs.push_back("-emit-obj"); |
| 3391 | |
| 3392 | CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D); |
| 3393 | |
| 3394 | // Also ignore explicit -force_cpusubtype_ALL option. |
| 3395 | (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); |
| 3396 | } else if (isa<PrecompileJobAction>(JA)) { |
| 3397 | // Use PCH if the user requested it. |
| 3398 | bool UsePCH = D.CCCUsePCH; |
| 3399 | |
| 3400 | if (JA.getType() == types::TY_Nothing) |
| 3401 | CmdArgs.push_back("-fsyntax-only"); |
| 3402 | else if (JA.getType() == types::TY_ModuleFile) |
| 3403 | CmdArgs.push_back(IsHeaderModulePrecompile |
| 3404 | ? "-emit-header-module" |
| 3405 | : "-emit-module-interface"); |
| 3406 | else if (UsePCH) |
| 3407 | CmdArgs.push_back("-emit-pch"); |
| 3408 | else |
| 3409 | CmdArgs.push_back("-emit-pth"); |
| 3410 | } else if (isa<VerifyPCHJobAction>(JA)) { |
| 3411 | CmdArgs.push_back("-verify-pch"); |
| 3412 | } else { |
| 3413 | assert((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) &&(((isa<CompileJobAction>(JA) || isa<BackendJobAction >(JA)) && "Invalid action for clang tool.") ? static_cast <void> (0) : __assert_fail ("(isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && \"Invalid action for clang tool.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3414, __PRETTY_FUNCTION__)) |
| 3414 | "Invalid action for clang tool.")(((isa<CompileJobAction>(JA) || isa<BackendJobAction >(JA)) && "Invalid action for clang tool.") ? static_cast <void> (0) : __assert_fail ("(isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && \"Invalid action for clang tool.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3414, __PRETTY_FUNCTION__)); |
| 3415 | if (JA.getType() == types::TY_Nothing) { |
| 3416 | CmdArgs.push_back("-fsyntax-only"); |
| 3417 | } else if (JA.getType() == types::TY_LLVM_IR || |
| 3418 | JA.getType() == types::TY_LTO_IR) { |
| 3419 | CmdArgs.push_back("-emit-llvm"); |
| 3420 | } else if (JA.getType() == types::TY_LLVM_BC || |
| 3421 | JA.getType() == types::TY_LTO_BC) { |
| 3422 | CmdArgs.push_back("-emit-llvm-bc"); |
| 3423 | } else if (JA.getType() == types::TY_PP_Asm) { |
| 3424 | CmdArgs.push_back("-S"); |
| 3425 | } else if (JA.getType() == types::TY_AST) { |
| 3426 | CmdArgs.push_back("-emit-pch"); |
| 3427 | } else if (JA.getType() == types::TY_ModuleFile) { |
| 3428 | CmdArgs.push_back("-module-file-info"); |
| 3429 | } else if (JA.getType() == types::TY_RewrittenObjC) { |
| 3430 | CmdArgs.push_back("-rewrite-objc"); |
| 3431 | rewriteKind = RK_NonFragile; |
| 3432 | } else if (JA.getType() == types::TY_RewrittenLegacyObjC) { |
| 3433 | CmdArgs.push_back("-rewrite-objc"); |
| 3434 | rewriteKind = RK_Fragile; |
| 3435 | } else { |
| 3436 | assert(JA.getType() == types::TY_PP_Asm && "Unexpected output type!")((JA.getType() == types::TY_PP_Asm && "Unexpected output type!" ) ? static_cast<void> (0) : __assert_fail ("JA.getType() == types::TY_PP_Asm && \"Unexpected output type!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3436, __PRETTY_FUNCTION__)); |
| 3437 | } |
| 3438 | |
| 3439 | // Preserve use-list order by default when emitting bitcode, so that |
| 3440 | // loading the bitcode up in 'opt' or 'llc' and running passes gives the |
| 3441 | // same result as running passes here. For LTO, we don't need to preserve |
| 3442 | // the use-list order, since serialization to bitcode is part of the flow. |
| 3443 | if (JA.getType() == types::TY_LLVM_BC) |
| 3444 | CmdArgs.push_back("-emit-llvm-uselists"); |
| 3445 | |
| 3446 | // Device-side jobs do not support LTO. |
| 3447 | bool isDeviceOffloadAction = !(JA.isDeviceOffloading(Action::OFK_None) || |
| 3448 | JA.isDeviceOffloading(Action::OFK_Host)); |
| 3449 | |
| 3450 | if (D.isUsingLTO() && !isDeviceOffloadAction) { |
| 3451 | Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ); |
| 3452 | |
| 3453 | // The Darwin and PS4 linkers currently use the legacy LTO API, which |
| 3454 | // does not support LTO unit features (CFI, whole program vtable opt) |
| 3455 | // under ThinLTO. |
| 3456 | if (!(RawTriple.isOSDarwin() || RawTriple.isPS4()) || |
| 3457 | D.getLTOMode() == LTOK_Full) |
| 3458 | CmdArgs.push_back("-flto-unit"); |
| 3459 | } |
| 3460 | } |
| 3461 | |
| 3462 | if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) { |
| 3463 | if (!types::isLLVMIR(Input.getType())) |
| 3464 | D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) |
| 3465 | << "-x ir"; |
| 3466 | Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ); |
| 3467 | } |
| 3468 | |
| 3469 | if (Args.getLastArg(options::OPT_save_temps_EQ)) |
| 3470 | Args.AddLastArg(CmdArgs, options::OPT_save_temps_EQ); |
| 3471 | |
| 3472 | // Embed-bitcode option. |
| 3473 | // Only white-listed flags below are allowed to be embedded. |
| 3474 | if (C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO() && |
| 3475 | (isa<BackendJobAction>(JA) || isa<AssembleJobAction>(JA))) { |
| 3476 | // Add flags implied by -fembed-bitcode. |
| 3477 | Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ); |
| 3478 | // Disable all llvm IR level optimizations. |
| 3479 | CmdArgs.push_back("-disable-llvm-passes"); |
| 3480 | |
| 3481 | // reject options that shouldn't be supported in bitcode |
| 3482 | // also reject kernel/kext |
| 3483 | static const constexpr unsigned kBitcodeOptionBlacklist[] = { |
| 3484 | options::OPT_mkernel, |
| 3485 | options::OPT_fapple_kext, |
| 3486 | options::OPT_ffunction_sections, |
| 3487 | options::OPT_fno_function_sections, |
| 3488 | options::OPT_fdata_sections, |
| 3489 | options::OPT_fno_data_sections, |
| 3490 | options::OPT_funique_section_names, |
| 3491 | options::OPT_fno_unique_section_names, |
| 3492 | options::OPT_mrestrict_it, |
| 3493 | options::OPT_mno_restrict_it, |
| 3494 | options::OPT_mstackrealign, |
| 3495 | options::OPT_mno_stackrealign, |
| 3496 | options::OPT_mstack_alignment, |
| 3497 | options::OPT_mcmodel_EQ, |
| 3498 | options::OPT_mlong_calls, |
| 3499 | options::OPT_mno_long_calls, |
| 3500 | options::OPT_ggnu_pubnames, |
| 3501 | options::OPT_gdwarf_aranges, |
| 3502 | options::OPT_fdebug_types_section, |
| 3503 | options::OPT_fno_debug_types_section, |
| 3504 | options::OPT_fdwarf_directory_asm, |
| 3505 | options::OPT_fno_dwarf_directory_asm, |
| 3506 | options::OPT_mrelax_all, |
| 3507 | options::OPT_mno_relax_all, |
| 3508 | options::OPT_ftrap_function_EQ, |
| 3509 | options::OPT_ffixed_r9, |
| 3510 | options::OPT_mfix_cortex_a53_835769, |
| 3511 | options::OPT_mno_fix_cortex_a53_835769, |
| 3512 | options::OPT_ffixed_x18, |
| 3513 | options::OPT_mglobal_merge, |
| 3514 | options::OPT_mno_global_merge, |
| 3515 | options::OPT_mred_zone, |
| 3516 | options::OPT_mno_red_zone, |
| 3517 | options::OPT_Wa_COMMA, |
| 3518 | options::OPT_Xassembler, |
| 3519 | options::OPT_mllvm, |
| 3520 | }; |
| 3521 | for (const auto &A : Args) |
| 3522 | if (std::find(std::begin(kBitcodeOptionBlacklist), |
| 3523 | std::end(kBitcodeOptionBlacklist), |
| 3524 | A->getOption().getID()) != |
| 3525 | std::end(kBitcodeOptionBlacklist)) |
| 3526 | D.Diag(diag::err_drv_unsupported_embed_bitcode) << A->getSpelling(); |
| 3527 | |
| 3528 | // Render the CodeGen options that need to be passed. |
| 3529 | if (!Args.hasFlag(options::OPT_foptimize_sibling_calls, |
| 3530 | options::OPT_fno_optimize_sibling_calls)) |
| 3531 | CmdArgs.push_back("-mdisable-tail-calls"); |
| 3532 | |
| 3533 | RenderFloatingPointOptions(TC, D, isOptimizationLevelFast(Args), Args, |
| 3534 | CmdArgs); |
| 3535 | |
| 3536 | // Render ABI arguments |
| 3537 | switch (TC.getArch()) { |
| 3538 | default: break; |
| 3539 | case llvm::Triple::arm: |
| 3540 | case llvm::Triple::armeb: |
| 3541 | case llvm::Triple::thumbeb: |
| 3542 | RenderARMABI(Triple, Args, CmdArgs); |
| 3543 | break; |
| 3544 | case llvm::Triple::aarch64: |
| 3545 | case llvm::Triple::aarch64_be: |
| 3546 | RenderAArch64ABI(Triple, Args, CmdArgs); |
| 3547 | break; |
| 3548 | } |
| 3549 | |
| 3550 | // Optimization level for CodeGen. |
| 3551 | if (const Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
| 3552 | if (A->getOption().matches(options::OPT_O4)) { |
| 3553 | CmdArgs.push_back("-O3"); |
| 3554 | D.Diag(diag::warn_O4_is_O3); |
| 3555 | } else { |
| 3556 | A->render(Args, CmdArgs); |
| 3557 | } |
| 3558 | } |
| 3559 | |
| 3560 | // Input/Output file. |
| 3561 | if (Output.getType() == types::TY_Dependencies) { |
| 3562 | // Handled with other dependency code. |
| 3563 | } else if (Output.isFilename()) { |
| 3564 | CmdArgs.push_back("-o"); |
| 3565 | CmdArgs.push_back(Output.getFilename()); |
| 3566 | } else { |
| 3567 | assert(Output.isNothing() && "Input output.")((Output.isNothing() && "Input output.") ? static_cast <void> (0) : __assert_fail ("Output.isNothing() && \"Input output.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3567, __PRETTY_FUNCTION__)); |
| 3568 | } |
| 3569 | |
| 3570 | for (const auto &II : Inputs) { |
| 3571 | addDashXForInput(Args, II, CmdArgs); |
| 3572 | if (II.isFilename()) |
| 3573 | CmdArgs.push_back(II.getFilename()); |
| 3574 | else |
| 3575 | II.getInputArg().renderAsInput(Args, CmdArgs); |
| 3576 | } |
| 3577 | |
| 3578 | C.addCommand(llvm::make_unique<Command>(JA, *this, D.getClangProgramPath(), |
| 3579 | CmdArgs, Inputs)); |
| 3580 | return; |
| 3581 | } |
| 3582 | |
| 3583 | if (C.getDriver().embedBitcodeMarkerOnly() && !C.getDriver().isUsingLTO()) |
| 3584 | CmdArgs.push_back("-fembed-bitcode=marker"); |
| 3585 | |
| 3586 | // We normally speed up the clang process a bit by skipping destructors at |
| 3587 | // exit, but when we're generating diagnostics we can rely on some of the |
| 3588 | // cleanup. |
| 3589 | if (!C.isForDiagnostics()) |
| 3590 | CmdArgs.push_back("-disable-free"); |
| 3591 | |
| 3592 | #ifdef NDEBUG |
| 3593 | const bool IsAssertBuild = false; |
| 3594 | #else |
| 3595 | const bool IsAssertBuild = true; |
| 3596 | #endif |
| 3597 | |
| 3598 | // Disable the verification pass in -asserts builds. |
| 3599 | if (!IsAssertBuild) |
| 3600 | CmdArgs.push_back("-disable-llvm-verifier"); |
| 3601 | |
| 3602 | // Discard value names in assert builds unless otherwise specified. |
| 3603 | if (Args.hasFlag(options::OPT_fdiscard_value_names, |
| 3604 | options::OPT_fno_discard_value_names, !IsAssertBuild)) |
| 3605 | CmdArgs.push_back("-discard-value-names"); |
| 3606 | |
| 3607 | // Set the main file name, so that debug info works even with |
| 3608 | // -save-temps. |
| 3609 | CmdArgs.push_back("-main-file-name"); |
| 3610 | CmdArgs.push_back(getBaseInputName(Args, Input)); |
| 3611 | |
| 3612 | // Some flags which affect the language (via preprocessor |
| 3613 | // defines). |
| 3614 | if (Args.hasArg(options::OPT_static)) |
| 3615 | CmdArgs.push_back("-static-define"); |
| 3616 | |
| 3617 | if (Args.hasArg(options::OPT_municode)) |
| 3618 | CmdArgs.push_back("-DUNICODE"); |
| 3619 | |
| 3620 | if (isa<AnalyzeJobAction>(JA)) |
| 3621 | RenderAnalyzerOptions(Args, CmdArgs, Triple, Input); |
| 3622 | |
| 3623 | CheckCodeGenerationOptions(D, Args); |
| 3624 | |
| 3625 | unsigned FunctionAlignment = ParseFunctionAlignment(TC, Args); |
| 3626 | assert(FunctionAlignment <= 31 && "function alignment will be truncated!")((FunctionAlignment <= 31 && "function alignment will be truncated!" ) ? static_cast<void> (0) : __assert_fail ("FunctionAlignment <= 31 && \"function alignment will be truncated!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3626, __PRETTY_FUNCTION__)); |
| 3627 | if (FunctionAlignment) { |
| 3628 | CmdArgs.push_back("-function-alignment"); |
| 3629 | CmdArgs.push_back(Args.MakeArgString(std::to_string(FunctionAlignment))); |
| 3630 | } |
| 3631 | |
| 3632 | llvm::Reloc::Model RelocationModel; |
| 3633 | unsigned PICLevel; |
| 3634 | bool IsPIE; |
| 3635 | std::tie(RelocationModel, PICLevel, IsPIE) = ParsePICArgs(TC, Args); |
| 3636 | |
| 3637 | const char *RMName = RelocationModelName(RelocationModel); |
| 3638 | |
| 3639 | if ((RelocationModel == llvm::Reloc::ROPI || |
| 3640 | RelocationModel == llvm::Reloc::ROPI_RWPI) && |
| 3641 | types::isCXX(Input.getType()) && |
| 3642 | !Args.hasArg(options::OPT_fallow_unsupported)) |
| 3643 | D.Diag(diag::err_drv_ropi_incompatible_with_cxx); |
| 3644 | |
| 3645 | if (RMName) { |
| 3646 | CmdArgs.push_back("-mrelocation-model"); |
| 3647 | CmdArgs.push_back(RMName); |
| 3648 | } |
| 3649 | if (PICLevel > 0) { |
| 3650 | CmdArgs.push_back("-pic-level"); |
| 3651 | CmdArgs.push_back(PICLevel == 1 ? "1" : "2"); |
| 3652 | if (IsPIE) |
| 3653 | CmdArgs.push_back("-pic-is-pie"); |
| 3654 | } |
| 3655 | |
| 3656 | if (Arg *A = Args.getLastArg(options::OPT_meabi)) { |
| 3657 | CmdArgs.push_back("-meabi"); |
| 3658 | CmdArgs.push_back(A->getValue()); |
| 3659 | } |
| 3660 | |
| 3661 | CmdArgs.push_back("-mthread-model"); |
| 3662 | if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) { |
| 3663 | if (!TC.isThreadModelSupported(A->getValue())) |
| 3664 | D.Diag(diag::err_drv_invalid_thread_model_for_target) |
| 3665 | << A->getValue() << A->getAsString(Args); |
| 3666 | CmdArgs.push_back(A->getValue()); |
| 3667 | } |
| 3668 | else |
| 3669 | CmdArgs.push_back(Args.MakeArgString(TC.getThreadModel())); |
| 3670 | |
| 3671 | Args.AddLastArg(CmdArgs, options::OPT_fveclib); |
| 3672 | |
| 3673 | if (Args.hasFlag(options::OPT_fmerge_all_constants, |
| 3674 | options::OPT_fno_merge_all_constants, false)) |
| 3675 | CmdArgs.push_back("-fmerge-all-constants"); |
| 3676 | |
| 3677 | if (Args.hasFlag(options::OPT_fno_delete_null_pointer_checks, |
| 3678 | options::OPT_fdelete_null_pointer_checks, false)) |
| 3679 | CmdArgs.push_back("-fno-delete-null-pointer-checks"); |
| 3680 | |
| 3681 | // LLVM Code Generator Options. |
| 3682 | |
| 3683 | if (Args.hasArg(options::OPT_frewrite_map_file) || |
| 3684 | Args.hasArg(options::OPT_frewrite_map_file_EQ)) { |
| 3685 | for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file, |
| 3686 | options::OPT_frewrite_map_file_EQ)) { |
| 3687 | StringRef Map = A->getValue(); |
| 3688 | if (!llvm::sys::fs::exists(Map)) { |
| 3689 | D.Diag(diag::err_drv_no_such_file) << Map; |
| 3690 | } else { |
| 3691 | CmdArgs.push_back("-frewrite-map-file"); |
| 3692 | CmdArgs.push_back(A->getValue()); |
| 3693 | A->claim(); |
| 3694 | } |
| 3695 | } |
| 3696 | } |
| 3697 | |
| 3698 | if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) { |
| 3699 | StringRef v = A->getValue(); |
| 3700 | CmdArgs.push_back("-mllvm"); |
| 3701 | CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v)); |
| 3702 | A->claim(); |
| 3703 | } |
| 3704 | |
| 3705 | if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables, |
| 3706 | true)) |
| 3707 | CmdArgs.push_back("-fno-jump-tables"); |
| 3708 | |
| 3709 | if (Args.hasFlag(options::OPT_fprofile_sample_accurate, |
| 3710 | options::OPT_fno_profile_sample_accurate, false)) |
| 3711 | CmdArgs.push_back("-fprofile-sample-accurate"); |
| 3712 | |
| 3713 | if (!Args.hasFlag(options::OPT_fpreserve_as_comments, |
| 3714 | options::OPT_fno_preserve_as_comments, true)) |
| 3715 | CmdArgs.push_back("-fno-preserve-as-comments"); |
| 3716 | |
| 3717 | if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { |
| 3718 | CmdArgs.push_back("-mregparm"); |
| 3719 | CmdArgs.push_back(A->getValue()); |
| 3720 | } |
| 3721 | |
| 3722 | if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return, |
| 3723 | options::OPT_freg_struct_return)) { |
| 3724 | if (TC.getArch() != llvm::Triple::x86) { |
| 3725 | D.Diag(diag::err_drv_unsupported_opt_for_target) |
| 3726 | << A->getSpelling() << RawTriple.str(); |
| 3727 | } else if (A->getOption().matches(options::OPT_fpcc_struct_return)) { |
| 3728 | CmdArgs.push_back("-fpcc-struct-return"); |
| 3729 | } else { |
| 3730 | assert(A->getOption().matches(options::OPT_freg_struct_return))((A->getOption().matches(options::OPT_freg_struct_return)) ? static_cast<void> (0) : __assert_fail ("A->getOption().matches(options::OPT_freg_struct_return)" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3730, __PRETTY_FUNCTION__)); |
| 3731 | CmdArgs.push_back("-freg-struct-return"); |
| 3732 | } |
| 3733 | } |
| 3734 | |
| 3735 | if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false)) |
| 3736 | CmdArgs.push_back("-fdefault-calling-conv=stdcall"); |
| 3737 | |
| 3738 | if (shouldUseFramePointer(Args, RawTriple)) |
| 3739 | CmdArgs.push_back("-mdisable-fp-elim"); |
| 3740 | if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss, |
| 3741 | options::OPT_fno_zero_initialized_in_bss)) |
| 3742 | CmdArgs.push_back("-mno-zero-initialized-in-bss"); |
| 3743 | |
| 3744 | bool OFastEnabled = isOptimizationLevelFast(Args); |
| 3745 | // If -Ofast is the optimization level, then -fstrict-aliasing should be |
| 3746 | // enabled. This alias option is being used to simplify the hasFlag logic. |
| 3747 | OptSpecifier StrictAliasingAliasOption = |
| 3748 | OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing; |
| 3749 | // We turn strict aliasing off by default if we're in CL mode, since MSVC |
| 3750 | // doesn't do any TBAA. |
| 3751 | bool TBAAOnByDefault = !D.IsCLMode(); |
| 3752 | if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption, |
| 3753 | options::OPT_fno_strict_aliasing, TBAAOnByDefault)) |
| 3754 | CmdArgs.push_back("-relaxed-aliasing"); |
| 3755 | if (!Args.hasFlag(options::OPT_fstruct_path_tbaa, |
| 3756 | options::OPT_fno_struct_path_tbaa)) |
| 3757 | CmdArgs.push_back("-no-struct-path-tbaa"); |
| 3758 | if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums, |
| 3759 | false)) |
| 3760 | CmdArgs.push_back("-fstrict-enums"); |
| 3761 | if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return, |
| 3762 | true)) |
| 3763 | CmdArgs.push_back("-fno-strict-return"); |
| 3764 | if (Args.hasFlag(options::OPT_fallow_editor_placeholders, |
| 3765 | options::OPT_fno_allow_editor_placeholders, false)) |
| 3766 | CmdArgs.push_back("-fallow-editor-placeholders"); |
| 3767 | if (Args.hasFlag(options::OPT_fstrict_vtable_pointers, |
| 3768 | options::OPT_fno_strict_vtable_pointers, |
| 3769 | false)) |
| 3770 | CmdArgs.push_back("-fstrict-vtable-pointers"); |
| 3771 | if (Args.hasFlag(options::OPT_fforce_emit_vtables, |
| 3772 | options::OPT_fno_force_emit_vtables, |
| 3773 | false)) |
| 3774 | CmdArgs.push_back("-fforce-emit-vtables"); |
| 3775 | if (!Args.hasFlag(options::OPT_foptimize_sibling_calls, |
| 3776 | options::OPT_fno_optimize_sibling_calls)) |
| 3777 | CmdArgs.push_back("-mdisable-tail-calls"); |
| 3778 | if (Args.hasFlag(options::OPT_fno_escaping_block_tail_calls, |
| 3779 | options::OPT_fescaping_block_tail_calls, false)) |
| 3780 | CmdArgs.push_back("-fno-escaping-block-tail-calls"); |
| 3781 | |
| 3782 | Args.AddLastArg(CmdArgs, options::OPT_ffine_grained_bitfield_accesses, |
| 3783 | options::OPT_fno_fine_grained_bitfield_accesses); |
| 3784 | |
| 3785 | // Handle segmented stacks. |
| 3786 | if (Args.hasArg(options::OPT_fsplit_stack)) |
| 3787 | CmdArgs.push_back("-split-stacks"); |
| 3788 | |
| 3789 | RenderFloatingPointOptions(TC, D, OFastEnabled, Args, CmdArgs); |
| 3790 | |
| 3791 | // Decide whether to use verbose asm. Verbose assembly is the default on |
| 3792 | // toolchains which have the integrated assembler on by default. |
| 3793 | bool IsIntegratedAssemblerDefault = TC.IsIntegratedAssemblerDefault(); |
| 3794 | if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm, |
| 3795 | IsIntegratedAssemblerDefault) || |
| 3796 | Args.hasArg(options::OPT_dA)) |
| 3797 | CmdArgs.push_back("-masm-verbose"); |
| 3798 | |
| 3799 | if (!TC.useIntegratedAs()) |
| 3800 | CmdArgs.push_back("-no-integrated-as"); |
| 3801 | |
| 3802 | if (Args.hasArg(options::OPT_fdebug_pass_structure)) { |
| 3803 | CmdArgs.push_back("-mdebug-pass"); |
| 3804 | CmdArgs.push_back("Structure"); |
| 3805 | } |
| 3806 | if (Args.hasArg(options::OPT_fdebug_pass_arguments)) { |
| 3807 | CmdArgs.push_back("-mdebug-pass"); |
| 3808 | CmdArgs.push_back("Arguments"); |
| 3809 | } |
| 3810 | |
| 3811 | // Enable -mconstructor-aliases except on darwin, where we have to work around |
| 3812 | // a linker bug (see <rdar://problem/7651567>), and CUDA device code, where |
| 3813 | // aliases aren't supported. |
| 3814 | if (!RawTriple.isOSDarwin() && !RawTriple.isNVPTX()) |
| 3815 | CmdArgs.push_back("-mconstructor-aliases"); |
| 3816 | |
| 3817 | // Darwin's kernel doesn't support guard variables; just die if we |
| 3818 | // try to use them. |
| 3819 | if (KernelOrKext && RawTriple.isOSDarwin()) |
| 3820 | CmdArgs.push_back("-fforbid-guard-variables"); |
| 3821 | |
| 3822 | if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields, |
| 3823 | false)) { |
| 3824 | CmdArgs.push_back("-mms-bitfields"); |
| 3825 | } |
| 3826 | |
| 3827 | if (Args.hasFlag(options::OPT_mpie_copy_relocations, |
| 3828 | options::OPT_mno_pie_copy_relocations, |
| 3829 | false)) { |
| 3830 | CmdArgs.push_back("-mpie-copy-relocations"); |
| 3831 | } |
| 3832 | |
| 3833 | if (Args.hasFlag(options::OPT_fno_plt, options::OPT_fplt, false)) { |
| 3834 | CmdArgs.push_back("-fno-plt"); |
| 3835 | } |
| 3836 | |
| 3837 | // -fhosted is default. |
| 3838 | // TODO: Audit uses of KernelOrKext and see where it'd be more appropriate to |
| 3839 | // use Freestanding. |
| 3840 | bool Freestanding = |
| 3841 | Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) || |
| 3842 | KernelOrKext; |
| 3843 | if (Freestanding) |
| 3844 | CmdArgs.push_back("-ffreestanding"); |
| 3845 | |
| 3846 | // This is a coarse approximation of what llvm-gcc actually does, both |
| 3847 | // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more |
| 3848 | // complicated ways. |
| 3849 | bool AsynchronousUnwindTables = |
| 3850 | Args.hasFlag(options::OPT_fasynchronous_unwind_tables, |
| 3851 | options::OPT_fno_asynchronous_unwind_tables, |
| 3852 | (TC.IsUnwindTablesDefault(Args) || |
| 3853 | TC.getSanitizerArgs().needsUnwindTables()) && |
| 3854 | !Freestanding); |
| 3855 | if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables, |
| 3856 | AsynchronousUnwindTables)) |
| 3857 | CmdArgs.push_back("-munwind-tables"); |
| 3858 | |
| 3859 | TC.addClangTargetOptions(Args, CmdArgs, JA.getOffloadingDeviceKind()); |
| 3860 | |
| 3861 | // FIXME: Handle -mtune=. |
| 3862 | (void)Args.hasArg(options::OPT_mtune_EQ); |
| 3863 | |
| 3864 | if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) { |
| 3865 | CmdArgs.push_back("-mcode-model"); |
| 3866 | CmdArgs.push_back(A->getValue()); |
| 3867 | } |
| 3868 | |
| 3869 | // Add the target cpu |
| 3870 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); |
| 3871 | if (!CPU.empty()) { |
| 3872 | CmdArgs.push_back("-target-cpu"); |
| 3873 | CmdArgs.push_back(Args.MakeArgString(CPU)); |
| 3874 | } |
| 3875 | |
| 3876 | RenderTargetOptions(Triple, Args, KernelOrKext, CmdArgs); |
| 3877 | |
| 3878 | // These two are potentially updated by AddClangCLArgs. |
| 3879 | codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; |
| 3880 | bool EmitCodeView = false; |
| 3881 | |
| 3882 | // Add clang-cl arguments. |
| 3883 | types::ID InputType = Input.getType(); |
| 3884 | if (D.IsCLMode()) |
| 3885 | AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView); |
| 3886 | else |
| 3887 | EmitCodeView = Args.hasArg(options::OPT_gcodeview); |
| 3888 | |
| 3889 | const Arg *SplitDWARFArg = nullptr; |
| 3890 | RenderDebugOptions(TC, D, RawTriple, Args, EmitCodeView, IsWindowsMSVC, |
| 3891 | CmdArgs, DebugInfoKind, SplitDWARFArg); |
| 3892 | |
| 3893 | // Add the split debug info name to the command lines here so we |
| 3894 | // can propagate it to the backend. |
| 3895 | bool SplitDWARF = SplitDWARFArg && |
| 3896 | (RawTriple.isOSLinux() || RawTriple.isOSFuchsia()) && |
| 3897 | (isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA) || |
| 3898 | isa<BackendJobAction>(JA)); |
| 3899 | const char *SplitDWARFOut; |
| 3900 | if (SplitDWARF) { |
| 3901 | CmdArgs.push_back("-split-dwarf-file"); |
| 3902 | SplitDWARFOut = SplitDebugName(Args, Input); |
| 3903 | CmdArgs.push_back(SplitDWARFOut); |
| 3904 | } |
| 3905 | |
| 3906 | // Pass the linker version in use. |
| 3907 | if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { |
| 3908 | CmdArgs.push_back("-target-linker-version"); |
| 3909 | CmdArgs.push_back(A->getValue()); |
| 3910 | } |
| 3911 | |
| 3912 | if (!shouldUseLeafFramePointer(Args, RawTriple)) |
| 3913 | CmdArgs.push_back("-momit-leaf-frame-pointer"); |
| 3914 | |
| 3915 | // Explicitly error on some things we know we don't support and can't just |
| 3916 | // ignore. |
| 3917 | if (!Args.hasArg(options::OPT_fallow_unsupported)) { |
| 3918 | Arg *Unsupported; |
| 3919 | if (types::isCXX(InputType) && RawTriple.isOSDarwin() && |
| 3920 | TC.getArch() == llvm::Triple::x86) { |
| 3921 | if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) || |
| 3922 | (Unsupported = Args.getLastArg(options::OPT_mkernel))) |
| 3923 | D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386) |
| 3924 | << Unsupported->getOption().getName(); |
| 3925 | } |
| 3926 | // The faltivec option has been superseded by the maltivec option. |
| 3927 | if ((Unsupported = Args.getLastArg(options::OPT_faltivec))) |
| 3928 | D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) |
| 3929 | << Unsupported->getOption().getName() |
| 3930 | << "please use -maltivec and include altivec.h explicitly"; |
| 3931 | if ((Unsupported = Args.getLastArg(options::OPT_fno_altivec))) |
| 3932 | D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) |
| 3933 | << Unsupported->getOption().getName() << "please use -mno-altivec"; |
| 3934 | } |
| 3935 | |
| 3936 | Args.AddAllArgs(CmdArgs, options::OPT_v); |
| 3937 | Args.AddLastArg(CmdArgs, options::OPT_H); |
| 3938 | if (D.CCPrintHeaders && !D.CCGenDiagnostics) { |
| 3939 | CmdArgs.push_back("-header-include-file"); |
| 3940 | CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename |
| 3941 | : "-"); |
| 3942 | } |
| 3943 | Args.AddLastArg(CmdArgs, options::OPT_P); |
| 3944 | Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout); |
| 3945 | |
| 3946 | if (D.CCLogDiagnostics && !D.CCGenDiagnostics) { |
| 3947 | CmdArgs.push_back("-diagnostic-log-file"); |
| 3948 | CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename |
| 3949 | : "-"); |
| 3950 | } |
| 3951 | |
| 3952 | bool UseSeparateSections = isUseSeparateSections(Triple); |
| 3953 | |
| 3954 | if (Args.hasFlag(options::OPT_ffunction_sections, |
| 3955 | options::OPT_fno_function_sections, UseSeparateSections)) { |
| 3956 | CmdArgs.push_back("-ffunction-sections"); |
| 3957 | } |
| 3958 | |
| 3959 | if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections, |
| 3960 | UseSeparateSections)) { |
| 3961 | CmdArgs.push_back("-fdata-sections"); |
| 3962 | } |
| 3963 | |
| 3964 | if (!Args.hasFlag(options::OPT_funique_section_names, |
| 3965 | options::OPT_fno_unique_section_names, true)) |
| 3966 | CmdArgs.push_back("-fno-unique-section-names"); |
| 3967 | |
| 3968 | if (auto *A = Args.getLastArg( |
| 3969 | options::OPT_finstrument_functions, |
| 3970 | options::OPT_finstrument_functions_after_inlining, |
| 3971 | options::OPT_finstrument_function_entry_bare)) |
| 3972 | A->render(Args, CmdArgs); |
| 3973 | |
| 3974 | // NVPTX doesn't support PGO or coverage. There's no runtime support for |
| 3975 | // sampling, overhead of call arc collection is way too high and there's no |
| 3976 | // way to collect the output. |
| 3977 | if (!Triple.isNVPTX()) |
| 3978 | addPGOAndCoverageFlags(C, D, Output, Args, CmdArgs); |
| 3979 | |
| 3980 | if (auto *ABICompatArg = Args.getLastArg(options::OPT_fclang_abi_compat_EQ)) |
| 3981 | ABICompatArg->render(Args, CmdArgs); |
| 3982 | |
| 3983 | // Add runtime flag for PS4 when PGO, coverage, or sanitizers are enabled. |
| 3984 | if (RawTriple.isPS4CPU()) { |
| 3985 | PS4cpu::addProfileRTArgs(TC, Args, CmdArgs); |
| 3986 | PS4cpu::addSanitizerArgs(TC, CmdArgs); |
| 3987 | } |
| 3988 | |
| 3989 | // Pass options for controlling the default header search paths. |
| 3990 | if (Args.hasArg(options::OPT_nostdinc)) { |
| 3991 | CmdArgs.push_back("-nostdsysteminc"); |
| 3992 | CmdArgs.push_back("-nobuiltininc"); |
| 3993 | } else { |
| 3994 | if (Args.hasArg(options::OPT_nostdlibinc)) |
| 3995 | CmdArgs.push_back("-nostdsysteminc"); |
| 3996 | Args.AddLastArg(CmdArgs, options::OPT_nostdincxx); |
| 3997 | Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc); |
| 3998 | } |
| 3999 | |
| 4000 | // Pass the path to compiler resource files. |
| 4001 | CmdArgs.push_back("-resource-dir"); |
| 4002 | CmdArgs.push_back(D.ResourceDir.c_str()); |
| 4003 | |
| 4004 | Args.AddLastArg(CmdArgs, options::OPT_working_directory); |
| 4005 | |
| 4006 | RenderARCMigrateToolOptions(D, Args, CmdArgs); |
| 4007 | |
| 4008 | // Add preprocessing options like -I, -D, etc. if we are using the |
| 4009 | // preprocessor. |
| 4010 | // |
| 4011 | // FIXME: Support -fpreprocessed |
| 4012 | if (types::getPreprocessedType(InputType) != types::TY_INVALID) |
| 4013 | AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs); |
| 4014 | |
| 4015 | // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes |
| 4016 | // that "The compiler can only warn and ignore the option if not recognized". |
| 4017 | // When building with ccache, it will pass -D options to clang even on |
| 4018 | // preprocessed inputs and configure concludes that -fPIC is not supported. |
| 4019 | Args.ClaimAllArgs(options::OPT_D); |
| 4020 | |
| 4021 | // Manually translate -O4 to -O3; let clang reject others. |
| 4022 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
| 4023 | if (A->getOption().matches(options::OPT_O4)) { |
| 4024 | CmdArgs.push_back("-O3"); |
| 4025 | D.Diag(diag::warn_O4_is_O3); |
| 4026 | } else { |
| 4027 | A->render(Args, CmdArgs); |
| 4028 | } |
| 4029 | } |
| 4030 | |
| 4031 | // Warn about ignored options to clang. |
| 4032 | for (const Arg *A : |
| 4033 | Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) { |
| 4034 | D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args); |
| 4035 | A->claim(); |
| 4036 | } |
| 4037 | |
| 4038 | for (const Arg *A : |
| 4039 | Args.filtered(options::OPT_clang_ignored_legacy_options_Group)) { |
| 4040 | D.Diag(diag::warn_ignored_clang_option) << A->getAsString(Args); |
| 4041 | A->claim(); |
| 4042 | } |
| 4043 | |
| 4044 | claimNoWarnArgs(Args); |
| 4045 | |
| 4046 | Args.AddAllArgs(CmdArgs, options::OPT_R_Group); |
| 4047 | |
| 4048 | Args.AddAllArgs(CmdArgs, options::OPT_W_Group); |
| 4049 | if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false)) |
| 4050 | CmdArgs.push_back("-pedantic"); |
| 4051 | Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors); |
| 4052 | Args.AddLastArg(CmdArgs, options::OPT_w); |
| 4053 | |
| 4054 | // Fixed point flags |
| 4055 | if (Args.hasFlag(options::OPT_ffixed_point, options::OPT_fno_fixed_point, |
| 4056 | /*Default=*/false)) |
| 4057 | Args.AddLastArg(CmdArgs, options::OPT_ffixed_point); |
| 4058 | |
| 4059 | // Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi} |
| 4060 | // (-ansi is equivalent to -std=c89 or -std=c++98). |
| 4061 | // |
| 4062 | // If a std is supplied, only add -trigraphs if it follows the |
| 4063 | // option. |
| 4064 | bool ImplyVCPPCXXVer = false; |
| 4065 | if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) { |
| 4066 | if (Std->getOption().matches(options::OPT_ansi)) |
| 4067 | if (types::isCXX(InputType)) |
| 4068 | CmdArgs.push_back("-std=c++98"); |
| 4069 | else |
| 4070 | CmdArgs.push_back("-std=c89"); |
| 4071 | else |
| 4072 | Std->render(Args, CmdArgs); |
| 4073 | |
| 4074 | // If -f(no-)trigraphs appears after the language standard flag, honor it. |
| 4075 | if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi, |
| 4076 | options::OPT_ftrigraphs, |
| 4077 | options::OPT_fno_trigraphs)) |
| 4078 | if (A != Std) |
| 4079 | A->render(Args, CmdArgs); |
| 4080 | } else { |
| 4081 | // Honor -std-default. |
| 4082 | // |
| 4083 | // FIXME: Clang doesn't correctly handle -std= when the input language |
| 4084 | // doesn't match. For the time being just ignore this for C++ inputs; |
| 4085 | // eventually we want to do all the standard defaulting here instead of |
| 4086 | // splitting it between the driver and clang -cc1. |
| 4087 | if (!types::isCXX(InputType)) |
| 4088 | Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=", |
| 4089 | /*Joined=*/true); |
| 4090 | else if (IsWindowsMSVC) |
| 4091 | ImplyVCPPCXXVer = true; |
| 4092 | |
| 4093 | Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs, |
| 4094 | options::OPT_fno_trigraphs); |
| 4095 | } |
| 4096 | |
| 4097 | // GCC's behavior for -Wwrite-strings is a bit strange: |
| 4098 | // * In C, this "warning flag" changes the types of string literals from |
| 4099 | // 'char[N]' to 'const char[N]', and thus triggers an unrelated warning |
| 4100 | // for the discarded qualifier. |
| 4101 | // * In C++, this is just a normal warning flag. |
| 4102 | // |
| 4103 | // Implementing this warning correctly in C is hard, so we follow GCC's |
| 4104 | // behavior for now. FIXME: Directly diagnose uses of a string literal as |
| 4105 | // a non-const char* in C, rather than using this crude hack. |
| 4106 | if (!types::isCXX(InputType)) { |
| 4107 | // FIXME: This should behave just like a warning flag, and thus should also |
| 4108 | // respect -Weverything, -Wno-everything, -Werror=write-strings, and so on. |
| 4109 | Arg *WriteStrings = |
| 4110 | Args.getLastArg(options::OPT_Wwrite_strings, |
| 4111 | options::OPT_Wno_write_strings, options::OPT_w); |
| 4112 | if (WriteStrings && |
| 4113 | WriteStrings->getOption().matches(options::OPT_Wwrite_strings)) |
| 4114 | CmdArgs.push_back("-fconst-strings"); |
| 4115 | } |
| 4116 | |
| 4117 | // GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active |
| 4118 | // during C++ compilation, which it is by default. GCC keeps this define even |
| 4119 | // in the presence of '-w', match this behavior bug-for-bug. |
| 4120 | if (types::isCXX(InputType) && |
| 4121 | Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated, |
| 4122 | true)) { |
| 4123 | CmdArgs.push_back("-fdeprecated-macro"); |
| 4124 | } |
| 4125 | |
| 4126 | // Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'. |
| 4127 | if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) { |
| 4128 | if (Asm->getOption().matches(options::OPT_fasm)) |
| 4129 | CmdArgs.push_back("-fgnu-keywords"); |
| 4130 | else |
| 4131 | CmdArgs.push_back("-fno-gnu-keywords"); |
| 4132 | } |
| 4133 | |
| 4134 | if (ShouldDisableDwarfDirectory(Args, TC)) |
| 4135 | CmdArgs.push_back("-fno-dwarf-directory-asm"); |
| 4136 | |
| 4137 | if (ShouldDisableAutolink(Args, TC)) |
| 4138 | CmdArgs.push_back("-fno-autolink"); |
| 4139 | |
| 4140 | // Add in -fdebug-compilation-dir if necessary. |
| 4141 | addDebugCompDirArg(Args, CmdArgs); |
| 4142 | |
| 4143 | addDebugPrefixMapArg(D, Args, CmdArgs); |
| 4144 | |
| 4145 | if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_, |
| 4146 | options::OPT_ftemplate_depth_EQ)) { |
| 4147 | CmdArgs.push_back("-ftemplate-depth"); |
| 4148 | CmdArgs.push_back(A->getValue()); |
| 4149 | } |
| 4150 | |
| 4151 | if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) { |
| 4152 | CmdArgs.push_back("-foperator-arrow-depth"); |
| 4153 | CmdArgs.push_back(A->getValue()); |
| 4154 | } |
| 4155 | |
| 4156 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) { |
| 4157 | CmdArgs.push_back("-fconstexpr-depth"); |
| 4158 | CmdArgs.push_back(A->getValue()); |
| 4159 | } |
| 4160 | |
| 4161 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) { |
| 4162 | CmdArgs.push_back("-fconstexpr-steps"); |
| 4163 | CmdArgs.push_back(A->getValue()); |
| 4164 | } |
| 4165 | |
| 4166 | if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) { |
| 4167 | CmdArgs.push_back("-fbracket-depth"); |
| 4168 | CmdArgs.push_back(A->getValue()); |
| 4169 | } |
| 4170 | |
| 4171 | if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ, |
| 4172 | options::OPT_Wlarge_by_value_copy_def)) { |
| 4173 | if (A->getNumValues()) { |
| 4174 | StringRef bytes = A->getValue(); |
| 4175 | CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes)); |
| 4176 | } else |
| 4177 | CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value |
| 4178 | } |
| 4179 | |
| 4180 | if (Args.hasArg(options::OPT_relocatable_pch)) |
| 4181 | CmdArgs.push_back("-relocatable-pch"); |
| 4182 | |
| 4183 | if (const Arg *A = Args.getLastArg(options::OPT_fcf_runtime_abi_EQ)) { |
| 4184 | static const char *kCFABIs[] = { |
| 4185 | "standalone", "objc", "swift", "swift-5.0", "swift-4.2", "swift-4.1", |
| 4186 | }; |
| 4187 | |
| 4188 | if (find(kCFABIs, StringRef(A->getValue())) == std::end(kCFABIs)) |
| 4189 | D.Diag(diag::err_drv_invalid_cf_runtime_abi) << A->getValue(); |
| 4190 | else |
| 4191 | A->render(Args, CmdArgs); |
| 4192 | } |
| 4193 | |
| 4194 | if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) { |
| 4195 | CmdArgs.push_back("-fconstant-string-class"); |
| 4196 | CmdArgs.push_back(A->getValue()); |
| 4197 | } |
| 4198 | |
| 4199 | if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) { |
| 4200 | CmdArgs.push_back("-ftabstop"); |
| 4201 | CmdArgs.push_back(A->getValue()); |
| 4202 | } |
| 4203 | |
| 4204 | if (Args.hasFlag(options::OPT_fstack_size_section, |
| 4205 | options::OPT_fno_stack_size_section, RawTriple.isPS4())) |
| 4206 | CmdArgs.push_back("-fstack-size-section"); |
| 4207 | |
| 4208 | CmdArgs.push_back("-ferror-limit"); |
| 4209 | if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ)) |
| 4210 | CmdArgs.push_back(A->getValue()); |
| 4211 | else |
| 4212 | CmdArgs.push_back("19"); |
| 4213 | |
| 4214 | if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) { |
| 4215 | CmdArgs.push_back("-fmacro-backtrace-limit"); |
| 4216 | CmdArgs.push_back(A->getValue()); |
| 4217 | } |
| 4218 | |
| 4219 | if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) { |
| 4220 | CmdArgs.push_back("-ftemplate-backtrace-limit"); |
| 4221 | CmdArgs.push_back(A->getValue()); |
| 4222 | } |
| 4223 | |
| 4224 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) { |
| 4225 | CmdArgs.push_back("-fconstexpr-backtrace-limit"); |
| 4226 | CmdArgs.push_back(A->getValue()); |
| 4227 | } |
| 4228 | |
| 4229 | if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) { |
| 4230 | CmdArgs.push_back("-fspell-checking-limit"); |
| 4231 | CmdArgs.push_back(A->getValue()); |
| 4232 | } |
| 4233 | |
| 4234 | // Pass -fmessage-length=. |
| 4235 | CmdArgs.push_back("-fmessage-length"); |
| 4236 | if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) { |
| 4237 | CmdArgs.push_back(A->getValue()); |
| 4238 | } else { |
| 4239 | // If -fmessage-length=N was not specified, determine whether this is a |
| 4240 | // terminal and, if so, implicitly define -fmessage-length appropriately. |
| 4241 | unsigned N = llvm::sys::Process::StandardErrColumns(); |
| 4242 | CmdArgs.push_back(Args.MakeArgString(Twine(N))); |
| 4243 | } |
| 4244 | |
| 4245 | // -fvisibility= and -fvisibility-ms-compat are of a piece. |
| 4246 | if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ, |
| 4247 | options::OPT_fvisibility_ms_compat)) { |
| 4248 | if (A->getOption().matches(options::OPT_fvisibility_EQ)) { |
| 4249 | CmdArgs.push_back("-fvisibility"); |
| 4250 | CmdArgs.push_back(A->getValue()); |
| 4251 | } else { |
| 4252 | assert(A->getOption().matches(options::OPT_fvisibility_ms_compat))((A->getOption().matches(options::OPT_fvisibility_ms_compat )) ? static_cast<void> (0) : __assert_fail ("A->getOption().matches(options::OPT_fvisibility_ms_compat)" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4252, __PRETTY_FUNCTION__)); |
| 4253 | CmdArgs.push_back("-fvisibility"); |
| 4254 | CmdArgs.push_back("hidden"); |
| 4255 | CmdArgs.push_back("-ftype-visibility"); |
| 4256 | CmdArgs.push_back("default"); |
| 4257 | } |
| 4258 | } |
| 4259 | |
| 4260 | Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden); |
| 4261 | |
| 4262 | Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ); |
| 4263 | |
| 4264 | // Forward -f (flag) options which we can pass directly. |
| 4265 | Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls); |
| 4266 | Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions); |
| 4267 | Args.AddLastArg(CmdArgs, options::OPT_fdigraphs, options::OPT_fno_digraphs); |
| 4268 | Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names); |
| 4269 | Args.AddLastArg(CmdArgs, options::OPT_femulated_tls, |
| 4270 | options::OPT_fno_emulated_tls); |
| 4271 | Args.AddLastArg(CmdArgs, options::OPT_fkeep_static_consts); |
| 4272 | |
| 4273 | // AltiVec-like language extensions aren't relevant for assembling. |
| 4274 | if (!isa<PreprocessJobAction>(JA) || Output.getType() != types::TY_PP_Asm) |
| 4275 | Args.AddLastArg(CmdArgs, options::OPT_fzvector); |
| 4276 | |
| 4277 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree); |
| 4278 | Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type); |
| 4279 | |
| 4280 | // Forward flags for OpenMP. We don't do this if the current action is an |
| 4281 | // device offloading action other than OpenMP. |
| 4282 | if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, |
| 4283 | options::OPT_fno_openmp, false) && |
| 4284 | (JA.isDeviceOffloading(Action::OFK_None) || |
| 4285 | JA.isDeviceOffloading(Action::OFK_OpenMP))) { |
| 4286 | switch (D.getOpenMPRuntime(Args)) { |
| 4287 | case Driver::OMPRT_OMP: |
| 4288 | case Driver::OMPRT_IOMP5: |
| 4289 | // Clang can generate useful OpenMP code for these two runtime libraries. |
| 4290 | CmdArgs.push_back("-fopenmp"); |
| 4291 | |
| 4292 | // If no option regarding the use of TLS in OpenMP codegeneration is |
| 4293 | // given, decide a default based on the target. Otherwise rely on the |
| 4294 | // options and pass the right information to the frontend. |
| 4295 | if (!Args.hasFlag(options::OPT_fopenmp_use_tls, |
| 4296 | options::OPT_fnoopenmp_use_tls, /*Default=*/true)) |
| 4297 | CmdArgs.push_back("-fnoopenmp-use-tls"); |
| 4298 | Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd, |
| 4299 | options::OPT_fno_openmp_simd); |
| 4300 | Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); |
| 4301 | |
| 4302 | // When in OpenMP offloading mode with NVPTX target, forward |
| 4303 | // cuda-mode flag |
| 4304 | if (Args.hasFlag(options::OPT_fopenmp_cuda_mode, |
| 4305 | options::OPT_fno_openmp_cuda_mode, /*Default=*/false)) |
| 4306 | CmdArgs.push_back("-fopenmp-cuda-mode"); |
| 4307 | |
| 4308 | // When in OpenMP offloading mode with NVPTX target, check if full runtime |
| 4309 | // is required. |
| 4310 | if (Args.hasFlag(options::OPT_fopenmp_cuda_force_full_runtime, |
| 4311 | options::OPT_fno_openmp_cuda_force_full_runtime, |
| 4312 | /*Default=*/false)) |
| 4313 | CmdArgs.push_back("-fopenmp-cuda-force-full-runtime"); |
| 4314 | break; |
| 4315 | default: |
| 4316 | // By default, if Clang doesn't know how to generate useful OpenMP code |
| 4317 | // for a specific runtime library, we just don't pass the '-fopenmp' flag |
| 4318 | // down to the actual compilation. |
| 4319 | // FIXME: It would be better to have a mode which *only* omits IR |
| 4320 | // generation based on the OpenMP support so that we get consistent |
| 4321 | // semantic analysis, etc. |
| 4322 | break; |
| 4323 | } |
| 4324 | } else { |
| 4325 | Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd, |
| 4326 | options::OPT_fno_openmp_simd); |
| 4327 | Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); |
| 4328 | } |
| 4329 | |
| 4330 | const SanitizerArgs &Sanitize = TC.getSanitizerArgs(); |
| 4331 | Sanitize.addArgs(TC, Args, CmdArgs, InputType); |
| 4332 | |
| 4333 | const XRayArgs &XRay = TC.getXRayArgs(); |
| 4334 | XRay.addArgs(TC, Args, CmdArgs, InputType); |
| 4335 | |
| 4336 | if (TC.SupportsProfiling()) |
| 4337 | Args.AddLastArg(CmdArgs, options::OPT_pg); |
| 4338 | |
| 4339 | if (TC.SupportsProfiling()) |
| 4340 | Args.AddLastArg(CmdArgs, options::OPT_mfentry); |
| 4341 | |
| 4342 | // -flax-vector-conversions is default. |
| 4343 | if (!Args.hasFlag(options::OPT_flax_vector_conversions, |
| 4344 | options::OPT_fno_lax_vector_conversions)) |
| 4345 | CmdArgs.push_back("-fno-lax-vector-conversions"); |
| 4346 | |
| 4347 | if (Args.getLastArg(options::OPT_fapple_kext) || |
| 4348 | (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType))) |
| 4349 | CmdArgs.push_back("-fapple-kext"); |
| 4350 | |
| 4351 | Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch); |
| 4352 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info); |
| 4353 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits); |
| 4354 | Args.AddLastArg(CmdArgs, options::OPT_ftime_report); |
| 4355 | Args.AddLastArg(CmdArgs, options::OPT_ftrapv); |
| 4356 | |
| 4357 | if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) { |
| 4358 | CmdArgs.push_back("-ftrapv-handler"); |
| 4359 | CmdArgs.push_back(A->getValue()); |
| 4360 | } |
| 4361 | |
| 4362 | Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ); |
| 4363 | |
| 4364 | // -fno-strict-overflow implies -fwrapv if it isn't disabled, but |
| 4365 | // -fstrict-overflow won't turn off an explicitly enabled -fwrapv. |
| 4366 | if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) { |
| 4367 | if (A->getOption().matches(options::OPT_fwrapv)) |
| 4368 | CmdArgs.push_back("-fwrapv"); |
| 4369 | } else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow, |
| 4370 | options::OPT_fno_strict_overflow)) { |
| 4371 | if (A->getOption().matches(options::OPT_fno_strict_overflow)) |
| 4372 | CmdArgs.push_back("-fwrapv"); |
| 4373 | } |
| 4374 | |
| 4375 | if (Arg *A = Args.getLastArg(options::OPT_freroll_loops, |
| 4376 | options::OPT_fno_reroll_loops)) |
| 4377 | if (A->getOption().matches(options::OPT_freroll_loops)) |
| 4378 | CmdArgs.push_back("-freroll-loops"); |
| 4379 | |
| 4380 | Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings); |
| 4381 | Args.AddLastArg(CmdArgs, options::OPT_funroll_loops, |
| 4382 | options::OPT_fno_unroll_loops); |
| 4383 | |
| 4384 | Args.AddLastArg(CmdArgs, options::OPT_pthread); |
| 4385 | |
| 4386 | Args.AddLastArg(CmdArgs, options::OPT_mspeculative_load_hardening, |
| 4387 | options::OPT_mno_speculative_load_hardening); |
| 4388 | |
| 4389 | RenderSSPOptions(TC, Args, CmdArgs, KernelOrKext); |
| 4390 | |
| 4391 | // Translate -mstackrealign |
| 4392 | if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign, |
| 4393 | false)) |
| 4394 | CmdArgs.push_back(Args.MakeArgString("-mstackrealign")); |
| 4395 | |
| 4396 | if (Args.hasArg(options::OPT_mstack_alignment)) { |
| 4397 | StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment); |
| 4398 | CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment)); |
| 4399 | } |
| 4400 | |
| 4401 | if (Args.hasArg(options::OPT_mstack_probe_size)) { |
| 4402 | StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size); |
| 4403 | |
| 4404 | if (!Size.empty()) |
| 4405 | CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size)); |
| 4406 | else |
| 4407 | CmdArgs.push_back("-mstack-probe-size=0"); |
| 4408 | } |
| 4409 | |
| 4410 | if (!Args.hasFlag(options::OPT_mstack_arg_probe, |
| 4411 | options::OPT_mno_stack_arg_probe, true)) |
| 4412 | CmdArgs.push_back(Args.MakeArgString("-mno-stack-arg-probe")); |
| 4413 | |
| 4414 | if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it, |
| 4415 | options::OPT_mno_restrict_it)) { |
| 4416 | if (A->getOption().matches(options::OPT_mrestrict_it)) { |
| 4417 | CmdArgs.push_back("-mllvm"); |
| 4418 | CmdArgs.push_back("-arm-restrict-it"); |
| 4419 | } else { |
| 4420 | CmdArgs.push_back("-mllvm"); |
| 4421 | CmdArgs.push_back("-arm-no-restrict-it"); |
| 4422 | } |
| 4423 | } else if (Triple.isOSWindows() && |
| 4424 | (Triple.getArch() == llvm::Triple::arm || |
| 4425 | Triple.getArch() == llvm::Triple::thumb)) { |
| 4426 | // Windows on ARM expects restricted IT blocks |
| 4427 | CmdArgs.push_back("-mllvm"); |
| 4428 | CmdArgs.push_back("-arm-restrict-it"); |
| 4429 | } |
| 4430 | |
| 4431 | // Forward -cl options to -cc1 |
| 4432 | RenderOpenCLOptions(Args, CmdArgs); |
| 4433 | |
| 4434 | if (Arg *A = Args.getLastArg(options::OPT_fcf_protection_EQ)) { |
| 4435 | CmdArgs.push_back( |
| 4436 | Args.MakeArgString(Twine("-fcf-protection=") + A->getValue())); |
| 4437 | } |
| 4438 | |
| 4439 | // Forward -f options with positive and negative forms; we translate |
| 4440 | // these by hand. |
| 4441 | if (Arg *A = getLastProfileSampleUseArg(Args)) { |
| 4442 | StringRef fname = A->getValue(); |
| 4443 | if (!llvm::sys::fs::exists(fname)) |
| 4444 | D.Diag(diag::err_drv_no_such_file) << fname; |
| 4445 | else |
| 4446 | A->render(Args, CmdArgs); |
| 4447 | } |
| 4448 | Args.AddLastArg(CmdArgs, options::OPT_fprofile_remapping_file_EQ); |
| 4449 | |
| 4450 | RenderBuiltinOptions(TC, RawTriple, Args, CmdArgs); |
| 4451 | |
| 4452 | if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, |
| 4453 | options::OPT_fno_assume_sane_operator_new)) |
| 4454 | CmdArgs.push_back("-fno-assume-sane-operator-new"); |
| 4455 | |
| 4456 | // -fblocks=0 is default. |
| 4457 | if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks, |
| 4458 | TC.IsBlocksDefault()) || |
| 4459 | (Args.hasArg(options::OPT_fgnu_runtime) && |
| 4460 | Args.hasArg(options::OPT_fobjc_nonfragile_abi) && |
| 4461 | !Args.hasArg(options::OPT_fno_blocks))) { |
| 4462 | CmdArgs.push_back("-fblocks"); |
| 4463 | |
| 4464 | if (!Args.hasArg(options::OPT_fgnu_runtime) && !TC.hasBlocksRuntime()) |
| 4465 | CmdArgs.push_back("-fblocks-runtime-optional"); |
| 4466 | } |
| 4467 | |
| 4468 | // -fencode-extended-block-signature=1 is default. |
| 4469 | if (TC.IsEncodeExtendedBlockSignatureDefault()) |
| 4470 | CmdArgs.push_back("-fencode-extended-block-signature"); |
| 4471 | |
| 4472 | if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts, |
| 4473 | false) && |
| 4474 | types::isCXX(InputType)) { |
| 4475 | CmdArgs.push_back("-fcoroutines-ts"); |
| 4476 | } |
| 4477 | |
| 4478 | Args.AddLastArg(CmdArgs, options::OPT_fdouble_square_bracket_attributes, |
| 4479 | options::OPT_fno_double_square_bracket_attributes); |
| 4480 | |
| 4481 | bool HaveModules = false; |
| 4482 | RenderModulesOptions(C, D, Args, Input, Output, CmdArgs, HaveModules); |
| 4483 | |
| 4484 | // -faccess-control is default. |
| 4485 | if (Args.hasFlag(options::OPT_fno_access_control, |
| 4486 | options::OPT_faccess_control, false)) |
| 4487 | CmdArgs.push_back("-fno-access-control"); |
| 4488 | |
| 4489 | // -felide-constructors is the default. |
| 4490 | if (Args.hasFlag(options::OPT_fno_elide_constructors, |
| 4491 | options::OPT_felide_constructors, false)) |
| 4492 | CmdArgs.push_back("-fno-elide-constructors"); |
| 4493 | |
| 4494 | ToolChain::RTTIMode RTTIMode = TC.getRTTIMode(); |
| 4495 | |
| 4496 | if (KernelOrKext || (types::isCXX(InputType) && |
| 4497 | (RTTIMode == ToolChain::RM_Disabled))) |
| 4498 | CmdArgs.push_back("-fno-rtti"); |
| 4499 | |
| 4500 | // -fshort-enums=0 is default for all architectures except Hexagon. |
| 4501 | if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums, |
| 4502 | TC.getArch() == llvm::Triple::hexagon)) |
| 4503 | CmdArgs.push_back("-fshort-enums"); |
| 4504 | |
| 4505 | RenderCharacterOptions(Args, AuxTriple ? *AuxTriple : RawTriple, CmdArgs); |
| 4506 | |
| 4507 | // -fuse-cxa-atexit is default. |
| 4508 | if (!Args.hasFlag( |
| 4509 | options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit, |
| 4510 | !RawTriple.isOSWindows() && |
| 4511 | RawTriple.getOS() != llvm::Triple::Solaris && |
| 4512 | TC.getArch() != llvm::Triple::xcore && |
| 4513 | ((RawTriple.getVendor() != llvm::Triple::MipsTechnologies) || |
| 4514 | RawTriple.hasEnvironment())) || |
| 4515 | KernelOrKext) |
| 4516 | CmdArgs.push_back("-fno-use-cxa-atexit"); |
| 4517 | |
| 4518 | if (Args.hasFlag(options::OPT_fregister_global_dtors_with_atexit, |
| 4519 | options::OPT_fno_register_global_dtors_with_atexit, |
| 4520 | RawTriple.isOSDarwin() && !KernelOrKext)) |
| 4521 | CmdArgs.push_back("-fregister-global-dtors-with-atexit"); |
| 4522 | |
| 4523 | // -fms-extensions=0 is default. |
| 4524 | if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions, |
| 4525 | IsWindowsMSVC)) |
| 4526 | CmdArgs.push_back("-fms-extensions"); |
| 4527 | |
| 4528 | // -fno-use-line-directives is default. |
| 4529 | if (Args.hasFlag(options::OPT_fuse_line_directives, |
| 4530 | options::OPT_fno_use_line_directives, false)) |
| 4531 | CmdArgs.push_back("-fuse-line-directives"); |
| 4532 | |
| 4533 | // -fms-compatibility=0 is default. |
| 4534 | if (Args.hasFlag(options::OPT_fms_compatibility, |
| 4535 | options::OPT_fno_ms_compatibility, |
| 4536 | (IsWindowsMSVC && |
| 4537 | Args.hasFlag(options::OPT_fms_extensions, |
| 4538 | options::OPT_fno_ms_extensions, true)))) |
| 4539 | CmdArgs.push_back("-fms-compatibility"); |
| 4540 | |
| 4541 | VersionTuple MSVT = TC.computeMSVCVersion(&D, Args); |
| 4542 | if (!MSVT.empty()) |
| 4543 | CmdArgs.push_back( |
| 4544 | Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString())); |
| 4545 | |
| 4546 | bool IsMSVC2015Compatible = MSVT.getMajor() >= 19; |
| 4547 | if (ImplyVCPPCXXVer) { |
| 4548 | StringRef LanguageStandard; |
| 4549 | if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) { |
| 4550 | LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue()) |
| 4551 | .Case("c++14", "-std=c++14") |
| 4552 | .Case("c++17", "-std=c++17") |
| 4553 | .Case("c++latest", "-std=c++2a") |
| 4554 | .Default(""); |
| 4555 | if (LanguageStandard.empty()) |
| 4556 | D.Diag(clang::diag::warn_drv_unused_argument) |
| 4557 | << StdArg->getAsString(Args); |
| 4558 | } |
| 4559 | |
| 4560 | if (LanguageStandard.empty()) { |
| 4561 | if (IsMSVC2015Compatible) |
| 4562 | LanguageStandard = "-std=c++14"; |
| 4563 | else |
| 4564 | LanguageStandard = "-std=c++11"; |
| 4565 | } |
| 4566 | |
| 4567 | CmdArgs.push_back(LanguageStandard.data()); |
| 4568 | } |
| 4569 | |
| 4570 | // -fno-borland-extensions is default. |
| 4571 | if (Args.hasFlag(options::OPT_fborland_extensions, |
| 4572 | options::OPT_fno_borland_extensions, false)) |
| 4573 | CmdArgs.push_back("-fborland-extensions"); |
| 4574 | |
| 4575 | // -fno-declspec is default, except for PS4. |
| 4576 | if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec, |
| 4577 | RawTriple.isPS4())) |
| 4578 | CmdArgs.push_back("-fdeclspec"); |
| 4579 | else if (Args.hasArg(options::OPT_fno_declspec)) |
| 4580 | CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec. |
| 4581 | |
| 4582 | // -fthreadsafe-static is default, except for MSVC compatibility versions less |
| 4583 | // than 19. |
| 4584 | if (!Args.hasFlag(options::OPT_fthreadsafe_statics, |
| 4585 | options::OPT_fno_threadsafe_statics, |
| 4586 | !IsWindowsMSVC || IsMSVC2015Compatible)) |
| 4587 | CmdArgs.push_back("-fno-threadsafe-statics"); |
| 4588 | |
| 4589 | // -fno-delayed-template-parsing is default, except when targeting MSVC. |
| 4590 | // Many old Windows SDK versions require this to parse. |
| 4591 | // FIXME: MSVC introduced /Zc:twoPhase- to disable this behavior in their |
| 4592 | // compiler. We should be able to disable this by default at some point. |
| 4593 | if (Args.hasFlag(options::OPT_fdelayed_template_parsing, |
| 4594 | options::OPT_fno_delayed_template_parsing, IsWindowsMSVC)) |
| 4595 | CmdArgs.push_back("-fdelayed-template-parsing"); |
| 4596 | |
| 4597 | // -fgnu-keywords default varies depending on language; only pass if |
| 4598 | // specified. |
| 4599 | if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords, |
| 4600 | options::OPT_fno_gnu_keywords)) |
| 4601 | A->render(Args, CmdArgs); |
| 4602 | |
| 4603 | if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline, |
| 4604 | false)) |
| 4605 | CmdArgs.push_back("-fgnu89-inline"); |
| 4606 | |
| 4607 | if (Args.hasArg(options::OPT_fno_inline)) |
| 4608 | CmdArgs.push_back("-fno-inline"); |
| 4609 | |
| 4610 | if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, |
| 4611 | options::OPT_finline_hint_functions, |
| 4612 | options::OPT_fno_inline_functions)) |
| 4613 | InlineArg->render(Args, CmdArgs); |
| 4614 | |
| 4615 | Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager, |
| 4616 | options::OPT_fno_experimental_new_pass_manager); |
| 4617 | |
| 4618 | ObjCRuntime Runtime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind); |
| 4619 | RenderObjCOptions(TC, D, RawTriple, Args, Runtime, rewriteKind != RK_None, |
| 4620 | Input, CmdArgs); |
| 4621 | |
| 4622 | if (Args.hasFlag(options::OPT_fapplication_extension, |
| 4623 | options::OPT_fno_application_extension, false)) |
| 4624 | CmdArgs.push_back("-fapplication-extension"); |
| 4625 | |
| 4626 | // Handle GCC-style exception args. |
| 4627 | if (!C.getDriver().IsCLMode()) |
| 4628 | addExceptionArgs(Args, InputType, TC, KernelOrKext, Runtime, CmdArgs); |
| 4629 | |
| 4630 | // Handle exception personalities |
| 4631 | Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, |
| 4632 | options::OPT_fseh_exceptions, |
| 4633 | options::OPT_fdwarf_exceptions); |
| 4634 | if (A) { |
| 4635 | const Option &Opt = A->getOption(); |
| 4636 | if (Opt.matches(options::OPT_fsjlj_exceptions)) |
| 4637 | CmdArgs.push_back("-fsjlj-exceptions"); |
| 4638 | if (Opt.matches(options::OPT_fseh_exceptions)) |
| 4639 | CmdArgs.push_back("-fseh-exceptions"); |
| 4640 | if (Opt.matches(options::OPT_fdwarf_exceptions)) |
| 4641 | CmdArgs.push_back("-fdwarf-exceptions"); |
| 4642 | } else { |
| 4643 | switch (TC.GetExceptionModel(Args)) { |
| 4644 | default: |
| 4645 | break; |
| 4646 | case llvm::ExceptionHandling::DwarfCFI: |
| 4647 | CmdArgs.push_back("-fdwarf-exceptions"); |
| 4648 | break; |
| 4649 | case llvm::ExceptionHandling::SjLj: |
| 4650 | CmdArgs.push_back("-fsjlj-exceptions"); |
| 4651 | break; |
| 4652 | case llvm::ExceptionHandling::WinEH: |
| 4653 | CmdArgs.push_back("-fseh-exceptions"); |
| 4654 | break; |
| 4655 | } |
| 4656 | } |
| 4657 | |
| 4658 | // C++ "sane" operator new. |
| 4659 | if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, |
| 4660 | options::OPT_fno_assume_sane_operator_new)) |
| 4661 | CmdArgs.push_back("-fno-assume-sane-operator-new"); |
| 4662 | |
| 4663 | // -frelaxed-template-template-args is off by default, as it is a severe |
| 4664 | // breaking change until a corresponding change to template partial ordering |
| 4665 | // is provided. |
| 4666 | if (Args.hasFlag(options::OPT_frelaxed_template_template_args, |
| 4667 | options::OPT_fno_relaxed_template_template_args, false)) |
| 4668 | CmdArgs.push_back("-frelaxed-template-template-args"); |
| 4669 | |
| 4670 | // -fsized-deallocation is off by default, as it is an ABI-breaking change for |
| 4671 | // most platforms. |
| 4672 | if (Args.hasFlag(options::OPT_fsized_deallocation, |
| 4673 | options::OPT_fno_sized_deallocation, false)) |
| 4674 | CmdArgs.push_back("-fsized-deallocation"); |
| 4675 | |
| 4676 | // -faligned-allocation is on by default in C++17 onwards and otherwise off |
| 4677 | // by default. |
| 4678 | if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation, |
| 4679 | options::OPT_fno_aligned_allocation, |
| 4680 | options::OPT_faligned_new_EQ)) { |
| 4681 | if (A->getOption().matches(options::OPT_fno_aligned_allocation)) |
| 4682 | CmdArgs.push_back("-fno-aligned-allocation"); |
| 4683 | else |
| 4684 | CmdArgs.push_back("-faligned-allocation"); |
| 4685 | } |
| 4686 | |
| 4687 | // The default new alignment can be specified using a dedicated option or via |
| 4688 | // a GCC-compatible option that also turns on aligned allocation. |
| 4689 | if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ, |
| 4690 | options::OPT_faligned_new_EQ)) |
| 4691 | CmdArgs.push_back( |
| 4692 | Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue())); |
| 4693 | |
| 4694 | // -fconstant-cfstrings is default, and may be subject to argument translation |
| 4695 | // on Darwin. |
| 4696 | if (!Args.hasFlag(options::OPT_fconstant_cfstrings, |
| 4697 | options::OPT_fno_constant_cfstrings) || |
| 4698 | !Args.hasFlag(options::OPT_mconstant_cfstrings, |
| 4699 | options::OPT_mno_constant_cfstrings)) |
| 4700 | CmdArgs.push_back("-fno-constant-cfstrings"); |
| 4701 | |
| 4702 | // -fno-pascal-strings is default, only pass non-default. |
| 4703 | if (Args.hasFlag(options::OPT_fpascal_strings, |
| 4704 | options::OPT_fno_pascal_strings, false)) |
| 4705 | CmdArgs.push_back("-fpascal-strings"); |
| 4706 | |
| 4707 | // Honor -fpack-struct= and -fpack-struct, if given. Note that |
| 4708 | // -fno-pack-struct doesn't apply to -fpack-struct=. |
| 4709 | if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) { |
| 4710 | std::string PackStructStr = "-fpack-struct="; |
| 4711 | PackStructStr += A->getValue(); |
| 4712 | CmdArgs.push_back(Args.MakeArgString(PackStructStr)); |
| 4713 | } else if (Args.hasFlag(options::OPT_fpack_struct, |
| 4714 | options::OPT_fno_pack_struct, false)) { |
| 4715 | CmdArgs.push_back("-fpack-struct=1"); |
| 4716 | } |
| 4717 | |
| 4718 | // Handle -fmax-type-align=N and -fno-type-align |
| 4719 | bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align); |
| 4720 | if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) { |
| 4721 | if (!SkipMaxTypeAlign) { |
| 4722 | std::string MaxTypeAlignStr = "-fmax-type-align="; |
| 4723 | MaxTypeAlignStr += A->getValue(); |
| 4724 | CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); |
| 4725 | } |
| 4726 | } else if (RawTriple.isOSDarwin()) { |
| 4727 | if (!SkipMaxTypeAlign) { |
| 4728 | std::string MaxTypeAlignStr = "-fmax-type-align=16"; |
| 4729 | CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); |
| 4730 | } |
| 4731 | } |
| 4732 | |
| 4733 | if (!Args.hasFlag(options::OPT_Qy, options::OPT_Qn, true)) |
| 4734 | CmdArgs.push_back("-Qn"); |
| 4735 | |
| 4736 | // -fcommon is the default unless compiling kernel code or the target says so |
| 4737 | bool NoCommonDefault = KernelOrKext || isNoCommonDefault(RawTriple); |
| 4738 | if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common, |
| 4739 | !NoCommonDefault)) |
| 4740 | CmdArgs.push_back("-fno-common"); |
| 4741 | |
| 4742 | // -fsigned-bitfields is default, and clang doesn't yet support |
| 4743 | // -funsigned-bitfields. |
| 4744 | if (!Args.hasFlag(options::OPT_fsigned_bitfields, |
| 4745 | options::OPT_funsigned_bitfields)) |
| 4746 | D.Diag(diag::warn_drv_clang_unsupported) |
| 4747 | << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args); |
| 4748 | |
| 4749 | // -fsigned-bitfields is default, and clang doesn't support -fno-for-scope. |
| 4750 | if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope)) |
| 4751 | D.Diag(diag::err_drv_clang_unsupported) |
| 4752 | << Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args); |
| 4753 | |
| 4754 | // -finput_charset=UTF-8 is default. Reject others |
| 4755 | if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) { |
| 4756 | StringRef value = inputCharset->getValue(); |
| 4757 | if (!value.equals_lower("utf-8")) |
| 4758 | D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args) |
| 4759 | << value; |
| 4760 | } |
| 4761 | |
| 4762 | // -fexec_charset=UTF-8 is default. Reject others |
| 4763 | if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) { |
| 4764 | StringRef value = execCharset->getValue(); |
| 4765 | if (!value.equals_lower("utf-8")) |
| 4766 | D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args) |
| 4767 | << value; |
| 4768 | } |
| 4769 | |
| 4770 | RenderDiagnosticsOptions(D, Args, CmdArgs); |
| 4771 | |
| 4772 | // -fno-asm-blocks is default. |
| 4773 | if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks, |
| 4774 | false)) |
| 4775 | CmdArgs.push_back("-fasm-blocks"); |
| 4776 | |
| 4777 | // -fgnu-inline-asm is default. |
| 4778 | if (!Args.hasFlag(options::OPT_fgnu_inline_asm, |
| 4779 | options::OPT_fno_gnu_inline_asm, true)) |
| 4780 | CmdArgs.push_back("-fno-gnu-inline-asm"); |
| 4781 | |
| 4782 | // Enable vectorization per default according to the optimization level |
| 4783 | // selected. For optimization levels that want vectorization we use the alias |
| 4784 | // option to simplify the hasFlag logic. |
| 4785 | bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false); |
| 4786 | OptSpecifier VectorizeAliasOption = |
| 4787 | EnableVec ? options::OPT_O_Group : options::OPT_fvectorize; |
| 4788 | if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption, |
| 4789 | options::OPT_fno_vectorize, EnableVec)) |
| 4790 | CmdArgs.push_back("-vectorize-loops"); |
| 4791 | |
| 4792 | // -fslp-vectorize is enabled based on the optimization level selected. |
| 4793 | bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true); |
| 4794 | OptSpecifier SLPVectAliasOption = |
| 4795 | EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize; |
| 4796 | if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption, |
| 4797 | options::OPT_fno_slp_vectorize, EnableSLPVec)) |
| 4798 | CmdArgs.push_back("-vectorize-slp"); |
| 4799 | |
| 4800 | ParseMPreferVectorWidth(D, Args, CmdArgs); |
| 4801 | |
| 4802 | if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ)) |
| 4803 | A->render(Args, CmdArgs); |
| 4804 | |
| 4805 | if (Arg *A = Args.getLastArg( |
| 4806 | options::OPT_fsanitize_undefined_strip_path_components_EQ)) |
| 4807 | A->render(Args, CmdArgs); |
| 4808 | |
| 4809 | // -fdollars-in-identifiers default varies depending on platform and |
| 4810 | // language; only pass if specified. |
| 4811 | if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers, |
| 4812 | options::OPT_fno_dollars_in_identifiers)) { |
| 4813 | if (A->getOption().matches(options::OPT_fdollars_in_identifiers)) |
| 4814 | CmdArgs.push_back("-fdollars-in-identifiers"); |
| 4815 | else |
| 4816 | CmdArgs.push_back("-fno-dollars-in-identifiers"); |
| 4817 | } |
| 4818 | |
| 4819 | // -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for |
| 4820 | // practical purposes. |
| 4821 | if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time, |
| 4822 | options::OPT_fno_unit_at_a_time)) { |
| 4823 | if (A->getOption().matches(options::OPT_fno_unit_at_a_time)) |
| 4824 | D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args); |
| 4825 | } |
| 4826 | |
| 4827 | if (Args.hasFlag(options::OPT_fapple_pragma_pack, |
| 4828 | options::OPT_fno_apple_pragma_pack, false)) |
| 4829 | CmdArgs.push_back("-fapple-pragma-pack"); |
| 4830 | |
| 4831 | if (Args.hasFlag(options::OPT_fsave_optimization_record, |
| 4832 | options::OPT_foptimization_record_file_EQ, |
| 4833 | options::OPT_fno_save_optimization_record, false)) { |
| 4834 | CmdArgs.push_back("-opt-record-file"); |
| 4835 | |
| 4836 | const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ); |
| 4837 | if (A) { |
| 4838 | CmdArgs.push_back(A->getValue()); |
| 4839 | } else { |
| 4840 | SmallString<128> F; |
| 4841 | |
| 4842 | if (Args.hasArg(options::OPT_c) || Args.hasArg(options::OPT_S)) { |
| 4843 | if (Arg *FinalOutput = Args.getLastArg(options::OPT_o)) |
| 4844 | F = FinalOutput->getValue(); |
| 4845 | } |
| 4846 | |
| 4847 | if (F.empty()) { |
| 4848 | // Use the input filename. |
| 4849 | F = llvm::sys::path::stem(Input.getBaseInput()); |
| 4850 | |
| 4851 | // If we're compiling for an offload architecture (i.e. a CUDA device), |
| 4852 | // we need to make the file name for the device compilation different |
| 4853 | // from the host compilation. |
| 4854 | if (!JA.isDeviceOffloading(Action::OFK_None) && |
| 4855 | !JA.isDeviceOffloading(Action::OFK_Host)) { |
| 4856 | llvm::sys::path::replace_extension(F, ""); |
| 4857 | F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(), |
| 4858 | Triple.normalize()); |
| 4859 | F += "-"; |
| 4860 | F += JA.getOffloadingArch(); |
| 4861 | } |
| 4862 | } |
| 4863 | |
| 4864 | llvm::sys::path::replace_extension(F, "opt.yaml"); |
| 4865 | CmdArgs.push_back(Args.MakeArgString(F)); |
| 4866 | } |
| 4867 | } |
| 4868 | |
| 4869 | bool RewriteImports = Args.hasFlag(options::OPT_frewrite_imports, |
| 4870 | options::OPT_fno_rewrite_imports, false); |
| 4871 | if (RewriteImports) |
| 4872 | CmdArgs.push_back("-frewrite-imports"); |
| 4873 | |
| 4874 | // Enable rewrite includes if the user's asked for it or if we're generating |
| 4875 | // diagnostics. |
| 4876 | // TODO: Once -module-dependency-dir works with -frewrite-includes it'd be |
| 4877 | // nice to enable this when doing a crashdump for modules as well. |
| 4878 | if (Args.hasFlag(options::OPT_frewrite_includes, |
| 4879 | options::OPT_fno_rewrite_includes, false) || |
| 4880 | (C.isForDiagnostics() && (RewriteImports || !HaveModules))) |
| 4881 | CmdArgs.push_back("-frewrite-includes"); |
| 4882 | |
| 4883 | // Only allow -traditional or -traditional-cpp outside in preprocessing modes. |
| 4884 | if (Arg *A = Args.getLastArg(options::OPT_traditional, |
| 4885 | options::OPT_traditional_cpp)) { |
| 4886 | if (isa<PreprocessJobAction>(JA)) |
| 4887 | CmdArgs.push_back("-traditional-cpp"); |
| 4888 | else |
| 4889 | D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); |
| 4890 | } |
| 4891 | |
| 4892 | Args.AddLastArg(CmdArgs, options::OPT_dM); |
| 4893 | Args.AddLastArg(CmdArgs, options::OPT_dD); |
| 4894 | |
| 4895 | // Handle serialized diagnostics. |
| 4896 | if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) { |
| 4897 | CmdArgs.push_back("-serialize-diagnostic-file"); |
| 4898 | CmdArgs.push_back(Args.MakeArgString(A->getValue())); |
| 4899 | } |
| 4900 | |
| 4901 | if (Args.hasArg(options::OPT_fretain_comments_from_system_headers)) |
| 4902 | CmdArgs.push_back("-fretain-comments-from-system-headers"); |
| 4903 | |
| 4904 | // Forward -fcomment-block-commands to -cc1. |
| 4905 | Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands); |
| 4906 | // Forward -fparse-all-comments to -cc1. |
| 4907 | Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments); |
| 4908 | |
| 4909 | // Turn -fplugin=name.so into -load name.so |
| 4910 | for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) { |
| 4911 | CmdArgs.push_back("-load"); |
| 4912 | CmdArgs.push_back(A->getValue()); |
| 4913 | A->claim(); |
| 4914 | } |
| 4915 | |
| 4916 | // Setup statistics file output. |
| 4917 | SmallString<128> StatsFile = getStatsFileName(Args, Output, Input, D); |
| 4918 | if (!StatsFile.empty()) |
| 4919 | CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + StatsFile)); |
| 4920 | |
| 4921 | // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option |
| 4922 | // parser. |
| 4923 | // -finclude-default-header flag is for preprocessor, |
| 4924 | // do not pass it to other cc1 commands when save-temps is enabled |
| 4925 | if (C.getDriver().isSaveTempsEnabled() && |
| 4926 | !isa<PreprocessJobAction>(JA)) { |
| 4927 | for (auto Arg : Args.filtered(options::OPT_Xclang)) { |
| 4928 | Arg->claim(); |
| 4929 | if (StringRef(Arg->getValue()) != "-finclude-default-header") |
| 4930 | CmdArgs.push_back(Arg->getValue()); |
| 4931 | } |
| 4932 | } |
| 4933 | else { |
| 4934 | Args.AddAllArgValues(CmdArgs, options::OPT_Xclang); |
| 4935 | } |
| 4936 | for (const Arg *A : Args.filtered(options::OPT_mllvm)) { |
| 4937 | A->claim(); |
| 4938 | |
| 4939 | // We translate this by hand to the -cc1 argument, since nightly test uses |
| 4940 | // it and developers have been trained to spell it with -mllvm. Both |
| 4941 | // spellings are now deprecated and should be removed. |
| 4942 | if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") { |
| 4943 | CmdArgs.push_back("-disable-llvm-optzns"); |
| 4944 | } else { |
| 4945 | A->render(Args, CmdArgs); |
| 4946 | } |
| 4947 | } |
| 4948 | |
| 4949 | // With -save-temps, we want to save the unoptimized bitcode output from the |
| 4950 | // CompileJobAction, use -disable-llvm-passes to get pristine IR generated |
| 4951 | // by the frontend. |
| 4952 | // When -fembed-bitcode is enabled, optimized bitcode is emitted because it |
| 4953 | // has slightly different breakdown between stages. |
| 4954 | // FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of |
| 4955 | // pristine IR generated by the frontend. Ideally, a new compile action should |
| 4956 | // be added so both IR can be captured. |
| 4957 | if (C.getDriver().isSaveTempsEnabled() && |
| 4958 | !(C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO()) && |
| 4959 | isa<CompileJobAction>(JA)) |
| 4960 | CmdArgs.push_back("-disable-llvm-passes"); |
| 4961 | |
| 4962 | if (Output.getType() == types::TY_Dependencies) { |
| 4963 | // Handled with other dependency code. |
| 4964 | } else if (Output.isFilename()) { |
| 4965 | CmdArgs.push_back("-o"); |
| 4966 | CmdArgs.push_back(Output.getFilename()); |
| 4967 | } else { |
| 4968 | assert(Output.isNothing() && "Invalid output.")((Output.isNothing() && "Invalid output.") ? static_cast <void> (0) : __assert_fail ("Output.isNothing() && \"Invalid output.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4968, __PRETTY_FUNCTION__)); |
| 4969 | } |
| 4970 | |
| 4971 | addDashXForInput(Args, Input, CmdArgs); |
| 4972 | |
| 4973 | ArrayRef<InputInfo> FrontendInputs = Input; |
| 4974 | if (IsHeaderModulePrecompile) |
| 4975 | FrontendInputs = ModuleHeaderInputs; |
| 4976 | else if (Input.isNothing()) |
| 4977 | FrontendInputs = {}; |
| 4978 | |
| 4979 | for (const InputInfo &Input : FrontendInputs) { |
| 4980 | if (Input.isFilename()) |
| 4981 | CmdArgs.push_back(Input.getFilename()); |
| 4982 | else |
| 4983 | Input.getInputArg().renderAsInput(Args, CmdArgs); |
| 4984 | } |
| 4985 | |
| 4986 | Args.AddAllArgs(CmdArgs, options::OPT_undef); |
| 4987 | |
| 4988 | const char *Exec = D.getClangProgramPath(); |
| 4989 | |
| 4990 | // Optionally embed the -cc1 level arguments into the debug info, for build |
| 4991 | // analysis. |
| 4992 | // Also record command line arguments into the debug info if |
| 4993 | // -grecord-gcc-switches options is set on. |
| 4994 | // By default, -gno-record-gcc-switches is set on and no recording. |
| 4995 | if (TC.UseDwarfDebugFlags() || |
| 4996 | Args.hasFlag(options::OPT_grecord_gcc_switches, |
| 4997 | options::OPT_gno_record_gcc_switches, false)) { |
| 4998 | ArgStringList OriginalArgs; |
| 4999 | for (const auto &Arg : Args) |
| 5000 | Arg->render(Args, OriginalArgs); |
| 5001 | |
| 5002 | SmallString<256> Flags; |
| 5003 | Flags += Exec; |
| 5004 | for (const char *OriginalArg : OriginalArgs) { |
| 5005 | SmallString<128> EscapedArg; |
| 5006 | EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); |
| 5007 | Flags += " "; |
| 5008 | Flags += EscapedArg; |
| 5009 | } |
| 5010 | CmdArgs.push_back("-dwarf-debug-flags"); |
| 5011 | CmdArgs.push_back(Args.MakeArgString(Flags)); |
| 5012 | } |
| 5013 | |
| 5014 | // Host-side cuda compilation receives all device-side outputs in a single |
| 5015 | // fatbin as Inputs[1]. Include the binary with -fcuda-include-gpubinary. |
| 5016 | if ((IsCuda || IsHIP) && CudaDeviceInput) { |
| 5017 | CmdArgs.push_back("-fcuda-include-gpubinary"); |
| 5018 | CmdArgs.push_back(CudaDeviceInput->getFilename()); |
| 5019 | if (Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false)) |
| 5020 | CmdArgs.push_back("-fgpu-rdc"); |
| 5021 | } |
| 5022 | |
| 5023 | if (IsCuda) { |
| 5024 | if (Args.hasFlag(options::OPT_fcuda_short_ptr, |
| 5025 | options::OPT_fno_cuda_short_ptr, false)) |
| 5026 | CmdArgs.push_back("-fcuda-short-ptr"); |
| 5027 | } |
| 5028 | |
| 5029 | // OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path |
| 5030 | // to specify the result of the compile phase on the host, so the meaningful |
| 5031 | // device declarations can be identified. Also, -fopenmp-is-device is passed |
| 5032 | // along to tell the frontend that it is generating code for a device, so that |
| 5033 | // only the relevant declarations are emitted. |
| 5034 | if (IsOpenMPDevice) { |
| 5035 | CmdArgs.push_back("-fopenmp-is-device"); |
| 5036 | if (OpenMPDeviceInput) { |
| 5037 | CmdArgs.push_back("-fopenmp-host-ir-file-path"); |
| 5038 | CmdArgs.push_back(Args.MakeArgString(OpenMPDeviceInput->getFilename())); |
| 5039 | } |
| 5040 | } |
| 5041 | |
| 5042 | // For all the host OpenMP offloading compile jobs we need to pass the targets |
| 5043 | // information using -fopenmp-targets= option. |
| 5044 | if (JA.isHostOffloading(Action::OFK_OpenMP)) { |
| 5045 | SmallString<128> TargetInfo("-fopenmp-targets="); |
| 5046 | |
| 5047 | Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ); |
| 5048 | assert(Tgts && Tgts->getNumValues() &&((Tgts && Tgts->getNumValues() && "OpenMP offloading has to have targets specified." ) ? static_cast<void> (0) : __assert_fail ("Tgts && Tgts->getNumValues() && \"OpenMP offloading has to have targets specified.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5049, __PRETTY_FUNCTION__)) |
| 5049 | "OpenMP offloading has to have targets specified.")((Tgts && Tgts->getNumValues() && "OpenMP offloading has to have targets specified." ) ? static_cast<void> (0) : __assert_fail ("Tgts && Tgts->getNumValues() && \"OpenMP offloading has to have targets specified.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5049, __PRETTY_FUNCTION__)); |
| 5050 | for (unsigned i = 0; i < Tgts->getNumValues(); ++i) { |
| 5051 | if (i) |
| 5052 | TargetInfo += ','; |
| 5053 | // We need to get the string from the triple because it may be not exactly |
| 5054 | // the same as the one we get directly from the arguments. |
| 5055 | llvm::Triple T(Tgts->getValue(i)); |
| 5056 | TargetInfo += T.getTriple(); |
| 5057 | } |
| 5058 | CmdArgs.push_back(Args.MakeArgString(TargetInfo.str())); |
| 5059 | } |
| 5060 | |
| 5061 | bool WholeProgramVTables = |
| 5062 | Args.hasFlag(options::OPT_fwhole_program_vtables, |
| 5063 | options::OPT_fno_whole_program_vtables, false); |
| 5064 | if (WholeProgramVTables) { |
| 5065 | if (!D.isUsingLTO()) |
| 5066 | D.Diag(diag::err_drv_argument_only_allowed_with) |
| 5067 | << "-fwhole-program-vtables" |
| 5068 | << "-flto"; |
| 5069 | CmdArgs.push_back("-fwhole-program-vtables"); |
| 5070 | } |
| 5071 | |
| 5072 | if (Arg *A = Args.getLastArg(options::OPT_fexperimental_isel, |
| 5073 | options::OPT_fno_experimental_isel)) { |
| 5074 | CmdArgs.push_back("-mllvm"); |
| 5075 | if (A->getOption().matches(options::OPT_fexperimental_isel)) { |
| 5076 | CmdArgs.push_back("-global-isel=1"); |
| 5077 | |
| 5078 | // GISel is on by default on AArch64 -O0, so don't bother adding |
| 5079 | // the fallback remarks for it. Other combinations will add a warning of |
| 5080 | // some kind. |
| 5081 | bool IsArchSupported = Triple.getArch() == llvm::Triple::aarch64; |
| 5082 | bool IsOptLevelSupported = false; |
| 5083 | |
| 5084 | Arg *A = Args.getLastArg(options::OPT_O_Group); |
| 5085 | if (Triple.getArch() == llvm::Triple::aarch64) { |
| 5086 | if (!A || A->getOption().matches(options::OPT_O0)) |
| 5087 | IsOptLevelSupported = true; |
| 5088 | } |
| 5089 | if (!IsArchSupported || !IsOptLevelSupported) { |
| 5090 | CmdArgs.push_back("-mllvm"); |
| 5091 | CmdArgs.push_back("-global-isel-abort=2"); |
| 5092 | |
| 5093 | if (!IsArchSupported) |
| 5094 | D.Diag(diag::warn_drv_experimental_isel_incomplete) << Triple.getArchName(); |
| 5095 | else |
| 5096 | D.Diag(diag::warn_drv_experimental_isel_incomplete_opt); |
| 5097 | } |
| 5098 | } else { |
| 5099 | CmdArgs.push_back("-global-isel=0"); |
| 5100 | } |
| 5101 | } |
| 5102 | |
| 5103 | if (Arg *A = Args.getLastArg(options::OPT_fforce_enable_int128, |
| 5104 | options::OPT_fno_force_enable_int128)) { |
| 5105 | if (A->getOption().matches(options::OPT_fforce_enable_int128)) |
| 5106 | CmdArgs.push_back("-fforce-enable-int128"); |
| 5107 | } |
| 5108 | |
| 5109 | if (Args.hasFlag(options::OPT_fcomplete_member_pointers, |
| 5110 | options::OPT_fno_complete_member_pointers, false)) |
| 5111 | CmdArgs.push_back("-fcomplete-member-pointers"); |
| 5112 | |
| 5113 | if (!Args.hasFlag(options::OPT_fcxx_static_destructors, |
| 5114 | options::OPT_fno_cxx_static_destructors, true)) |
| 5115 | CmdArgs.push_back("-fno-c++-static-destructors"); |
| 5116 | |
| 5117 | if (Arg *A = Args.getLastArg(options::OPT_moutline, |
| 5118 | options::OPT_mno_outline)) { |
| 5119 | if (A->getOption().matches(options::OPT_moutline)) { |
| 5120 | // We only support -moutline in AArch64 right now. If we're not compiling |
| 5121 | // for AArch64, emit a warning and ignore the flag. Otherwise, add the |
| 5122 | // proper mllvm flags. |
| 5123 | if (Triple.getArch() != llvm::Triple::aarch64) { |
| 5124 | D.Diag(diag::warn_drv_moutline_unsupported_opt) << Triple.getArchName(); |
| 5125 | } else { |
| 5126 | CmdArgs.push_back("-mllvm"); |
| 5127 | CmdArgs.push_back("-enable-machine-outliner"); |
| 5128 | } |
| 5129 | } else { |
| 5130 | // Disable all outlining behaviour. |
| 5131 | CmdArgs.push_back("-mllvm"); |
| 5132 | CmdArgs.push_back("-enable-machine-outliner=never"); |
| 5133 | } |
| 5134 | } |
| 5135 | |
| 5136 | if (Args.hasFlag(options::OPT_faddrsig, options::OPT_fno_addrsig, |
| 5137 | (TC.getTriple().isOSBinFormatELF() || |
| 5138 | TC.getTriple().isOSBinFormatCOFF()) && |
| 5139 | TC.useIntegratedAs())) |
| 5140 | CmdArgs.push_back("-faddrsig"); |
| 5141 | |
| 5142 | // Finally add the compile command to the compilation. |
| 5143 | if (Args.hasArg(options::OPT__SLASH_fallback) && |
| 5144 | Output.getType() == types::TY_Object && |
| 5145 | (InputType == types::TY_C || InputType == types::TY_CXX)) { |
| 5146 | auto CLCommand = |
| 5147 | getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput); |
| 5148 | C.addCommand(llvm::make_unique<FallbackCommand>( |
| 5149 | JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand))); |
| 5150 | } else if (Args.hasArg(options::OPT__SLASH_fallback) && |
| 5151 | isa<PrecompileJobAction>(JA)) { |
| 5152 | // In /fallback builds, run the main compilation even if the pch generation |
| 5153 | // fails, so that the main compilation's fallback to cl.exe runs. |
| 5154 | C.addCommand(llvm::make_unique<ForceSuccessCommand>(JA, *this, Exec, |
| 5155 | CmdArgs, Inputs)); |
| 5156 | } else { |
| 5157 | C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
| 5158 | } |
| 5159 | |
| 5160 | // Make the compile command echo its inputs for /showFilenames. |
| 5161 | if (Output.getType() == types::TY_Object && |
| 5162 | Args.hasFlag(options::OPT__SLASH_showFilenames, |
| 5163 | options::OPT__SLASH_showFilenames_, false)) { |
| 5164 | C.getJobs().getJobs().back()->setPrintInputFilenames(true); |
| 5165 | } |
| 5166 | |
| 5167 | if (Arg *A = Args.getLastArg(options::OPT_pg)) |
| 5168 | if (!shouldUseFramePointer(Args, Triple)) |
| 5169 | D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer" |
| 5170 | << A->getAsString(Args); |
| 5171 | |
| 5172 | // Claim some arguments which clang supports automatically. |
| 5173 | |
| 5174 | // -fpch-preprocess is used with gcc to add a special marker in the output to |
| 5175 | // include the PCH file. Clang's PTH solution is completely transparent, so we |
| 5176 | // do not need to deal with it at all. |
| 5177 | Args.ClaimAllArgs(options::OPT_fpch_preprocess); |
| 5178 | |
| 5179 | // Claim some arguments which clang doesn't support, but we don't |
| 5180 | // care to warn the user about. |
| 5181 | Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group); |
| 5182 | Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group); |
| 5183 | |
| 5184 | // Disable warnings for clang -E -emit-llvm foo.c |
| 5185 | Args.ClaimAllArgs(options::OPT_emit_llvm); |
| 5186 | } |
| 5187 | |
| 5188 | Clang::Clang(const ToolChain &TC) |
| 5189 | // CAUTION! The first constructor argument ("clang") is not arbitrary, |
| 5190 | // as it is for other tools. Some operations on a Tool actually test |
| 5191 | // whether that tool is Clang based on the Tool's Name as a string. |
| 5192 | : Tool("clang", "clang frontend", TC, RF_Full) {} |
| 5193 | |
| 5194 | Clang::~Clang() {} |
| 5195 | |
| 5196 | /// Add options related to the Objective-C runtime/ABI. |
| 5197 | /// |
| 5198 | /// Returns true if the runtime is non-fragile. |
| 5199 | ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args, |
| 5200 | ArgStringList &cmdArgs, |
| 5201 | RewriteKind rewriteKind) const { |
| 5202 | // Look for the controlling runtime option. |
| 5203 | Arg *runtimeArg = |
| 5204 | args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime, |
| 5205 | options::OPT_fobjc_runtime_EQ); |
| 5206 | |
| 5207 | // Just forward -fobjc-runtime= to the frontend. This supercedes |
| 5208 | // options about fragility. |
| 5209 | if (runtimeArg && |
| 5210 | runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) { |
| 5211 | ObjCRuntime runtime; |
| 5212 | StringRef value = runtimeArg->getValue(); |
| 5213 | if (runtime.tryParse(value)) { |
| 5214 | getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime) |
| 5215 | << value; |
| 5216 | } |
| 5217 | if ((runtime.getKind() == ObjCRuntime::GNUstep) && |
| 5218 | (runtime.getVersion() >= VersionTuple(2, 0))) |
| 5219 | if (!getToolChain().getTriple().isOSBinFormatELF() && |
| 5220 | !getToolChain().getTriple().isOSBinFormatCOFF()) { |
| 5221 | getToolChain().getDriver().Diag( |
| 5222 | diag::err_drv_gnustep_objc_runtime_incompatible_binary) |
| 5223 | << runtime.getVersion().getMajor(); |
| 5224 | } |
| 5225 | |
| 5226 | runtimeArg->render(args, cmdArgs); |
| 5227 | return runtime; |
| 5228 | } |
| 5229 | |
| 5230 | // Otherwise, we'll need the ABI "version". Version numbers are |
| 5231 | // slightly confusing for historical reasons: |
| 5232 | // 1 - Traditional "fragile" ABI |
| 5233 | // 2 - Non-fragile ABI, version 1 |
| 5234 | // 3 - Non-fragile ABI, version 2 |
| 5235 | unsigned objcABIVersion = 1; |
| 5236 | // If -fobjc-abi-version= is present, use that to set the version. |
| 5237 | if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) { |
| 5238 | StringRef value = abiArg->getValue(); |
| 5239 | if (value == "1") |
| 5240 | objcABIVersion = 1; |
| 5241 | else if (value == "2") |
| 5242 | objcABIVersion = 2; |
| 5243 | else if (value == "3") |
| 5244 | objcABIVersion = 3; |
| 5245 | else |
| 5246 | getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value; |
| 5247 | } else { |
| 5248 | // Otherwise, determine if we are using the non-fragile ABI. |
| 5249 | bool nonFragileABIIsDefault = |
| 5250 | (rewriteKind == RK_NonFragile || |
| 5251 | (rewriteKind == RK_None && |
| 5252 | getToolChain().IsObjCNonFragileABIDefault())); |
| 5253 | if (args.hasFlag(options::OPT_fobjc_nonfragile_abi, |
| 5254 | options::OPT_fno_objc_nonfragile_abi, |
| 5255 | nonFragileABIIsDefault)) { |
| 5256 | // Determine the non-fragile ABI version to use. |
| 5257 | #ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO |
| 5258 | unsigned nonFragileABIVersion = 1; |
| 5259 | #else |
| 5260 | unsigned nonFragileABIVersion = 2; |
| 5261 | #endif |
| 5262 | |
| 5263 | if (Arg *abiArg = |
| 5264 | args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) { |
| 5265 | StringRef value = abiArg->getValue(); |
| 5266 | if (value == "1") |
| 5267 | nonFragileABIVersion = 1; |
| 5268 | else if (value == "2") |
| 5269 | nonFragileABIVersion = 2; |
| 5270 | else |
| 5271 | getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) |
| 5272 | << value; |
| 5273 | } |
| 5274 | |
| 5275 | objcABIVersion = 1 + nonFragileABIVersion; |
| 5276 | } else { |
| 5277 | objcABIVersion = 1; |
| 5278 | } |
| 5279 | } |
| 5280 | |
| 5281 | // We don't actually care about the ABI version other than whether |
| 5282 | // it's non-fragile. |
| 5283 | bool isNonFragile = objcABIVersion != 1; |
| 5284 | |
| 5285 | // If we have no runtime argument, ask the toolchain for its default runtime. |
| 5286 | // However, the rewriter only really supports the Mac runtime, so assume that. |
| 5287 | ObjCRuntime runtime; |
| 5288 | if (!runtimeArg) { |
| 5289 | switch (rewriteKind) { |
| 5290 | case RK_None: |
| 5291 | runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); |
| 5292 | break; |
| 5293 | case RK_Fragile: |
| 5294 | runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple()); |
| 5295 | break; |
| 5296 | case RK_NonFragile: |
| 5297 | runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); |
| 5298 | break; |
| 5299 | } |
| 5300 | |
| 5301 | // -fnext-runtime |
| 5302 | } else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) { |
| 5303 | // On Darwin, make this use the default behavior for the toolchain. |
| 5304 | if (getToolChain().getTriple().isOSDarwin()) { |
| 5305 | runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); |
| 5306 | |
| 5307 | // Otherwise, build for a generic macosx port. |
| 5308 | } else { |
| 5309 | runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); |
| 5310 | } |
| 5311 | |
| 5312 | // -fgnu-runtime |
| 5313 | } else { |
| 5314 | assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime))((runtimeArg->getOption().matches(options::OPT_fgnu_runtime )) ? static_cast<void> (0) : __assert_fail ("runtimeArg->getOption().matches(options::OPT_fgnu_runtime)" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5314, __PRETTY_FUNCTION__)); |
| 5315 | // Legacy behaviour is to target the gnustep runtime if we are in |
| 5316 | // non-fragile mode or the GCC runtime in fragile mode. |
| 5317 | if (isNonFragile) |
| 5318 | runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(2, 0)); |
| 5319 | else |
| 5320 | runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple()); |
| 5321 | } |
| 5322 | |
| 5323 | cmdArgs.push_back( |
| 5324 | args.MakeArgString("-fobjc-runtime=" + runtime.getAsString())); |
| 5325 | return runtime; |
| 5326 | } |
| 5327 | |
| 5328 | static bool maybeConsumeDash(const std::string &EH, size_t &I) { |
| 5329 | bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-'); |
| 5330 | I += HaveDash; |
| 5331 | return !HaveDash; |
| 5332 | } |
| 5333 | |
| 5334 | namespace { |
| 5335 | struct EHFlags { |
| 5336 | bool Synch = false; |
| 5337 | bool Asynch = false; |
| 5338 | bool NoUnwindC = false; |
| 5339 | }; |
| 5340 | } // end anonymous namespace |
| 5341 | |
| 5342 | /// /EH controls whether to run destructor cleanups when exceptions are |
| 5343 | /// thrown. There are three modifiers: |
| 5344 | /// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions. |
| 5345 | /// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions. |
| 5346 | /// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR. |
| 5347 | /// - c: Assume that extern "C" functions are implicitly nounwind. |
| 5348 | /// The default is /EHs-c-, meaning cleanups are disabled. |
| 5349 | static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) { |
| 5350 | EHFlags EH; |
| 5351 | |
| 5352 | std::vector<std::string> EHArgs = |
| 5353 | Args.getAllArgValues(options::OPT__SLASH_EH); |
| 5354 | for (auto EHVal : EHArgs) { |
| 5355 | for (size_t I = 0, E = EHVal.size(); I != E; ++I) { |
| 5356 | switch (EHVal[I]) { |
| 5357 | case 'a': |
| 5358 | EH.Asynch = maybeConsumeDash(EHVal, I); |
| 5359 | if (EH.Asynch) |
| 5360 | EH.Synch = false; |
| 5361 | continue; |
| 5362 | case 'c': |
| 5363 | EH.NoUnwindC = maybeConsumeDash(EHVal, I); |
| 5364 | continue; |
| 5365 | case 's': |
| 5366 | EH.Synch = maybeConsumeDash(EHVal, I); |
| 5367 | if (EH.Synch) |
| 5368 | EH.Asynch = false; |
| 5369 | continue; |
| 5370 | default: |
| 5371 | break; |
| 5372 | } |
| 5373 | D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal; |
| 5374 | break; |
| 5375 | } |
| 5376 | } |
| 5377 | // The /GX, /GX- flags are only processed if there are not /EH flags. |
| 5378 | // The default is that /GX is not specified. |
| 5379 | if (EHArgs.empty() && |
| 5380 | Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_, |
| 5381 | /*default=*/false)) { |
| 5382 | EH.Synch = true; |
| 5383 | EH.NoUnwindC = true; |
| 5384 | } |
| 5385 | |
| 5386 | return EH; |
| 5387 | } |
| 5388 | |
| 5389 | void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType, |
| 5390 | ArgStringList &CmdArgs, |
| 5391 | codegenoptions::DebugInfoKind *DebugInfoKind, |
| 5392 | bool *EmitCodeView) const { |
| 5393 | unsigned RTOptionID = options::OPT__SLASH_MT; |
| 5394 | |
| 5395 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
| 5396 | // The /LDd option implies /MTd. The dependent lib part can be overridden, |
| 5397 | // but defining _DEBUG is sticky. |
| 5398 | RTOptionID = options::OPT__SLASH_MTd; |
| 5399 | |
| 5400 | if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group)) |
| 5401 | RTOptionID = A->getOption().getID(); |
| 5402 | |
| 5403 | StringRef FlagForCRT; |
| 5404 | switch (RTOptionID) { |
| 5405 | case options::OPT__SLASH_MD: |
| 5406 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
| 5407 | CmdArgs.push_back("-D_DEBUG"); |
| 5408 | CmdArgs.push_back("-D_MT"); |
| 5409 | CmdArgs.push_back("-D_DLL"); |
| 5410 | FlagForCRT = "--dependent-lib=msvcrt"; |
| 5411 | break; |
| 5412 | case options::OPT__SLASH_MDd: |
| 5413 | CmdArgs.push_back("-D_DEBUG"); |
| 5414 | CmdArgs.push_back("-D_MT"); |
| 5415 | CmdArgs.push_back("-D_DLL"); |
| 5416 | FlagForCRT = "--dependent-lib=msvcrtd"; |
| 5417 | break; |
| 5418 | case options::OPT__SLASH_MT: |
| 5419 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
| 5420 | CmdArgs.push_back("-D_DEBUG"); |
| 5421 | CmdArgs.push_back("-D_MT"); |
| 5422 | CmdArgs.push_back("-flto-visibility-public-std"); |
| 5423 | FlagForCRT = "--dependent-lib=libcmt"; |
| 5424 | break; |
| 5425 | case options::OPT__SLASH_MTd: |
| 5426 | CmdArgs.push_back("-D_DEBUG"); |
| 5427 | CmdArgs.push_back("-D_MT"); |
| 5428 | CmdArgs.push_back("-flto-visibility-public-std"); |
| 5429 | FlagForCRT = "--dependent-lib=libcmtd"; |
| 5430 | break; |
| 5431 | default: |
| 5432 | llvm_unreachable("Unexpected option ID.")::llvm::llvm_unreachable_internal("Unexpected option ID.", "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5432); |
| 5433 | } |
| 5434 | |
| 5435 | if (Args.hasArg(options::OPT__SLASH_Zl)) { |
| 5436 | CmdArgs.push_back("-D_VC_NODEFAULTLIB"); |
| 5437 | } else { |
| 5438 | CmdArgs.push_back(FlagForCRT.data()); |
| 5439 | |
| 5440 | // This provides POSIX compatibility (maps 'open' to '_open'), which most |
| 5441 | // users want. The /Za flag to cl.exe turns this off, but it's not |
| 5442 | // implemented in clang. |
| 5443 | CmdArgs.push_back("--dependent-lib=oldnames"); |
| 5444 | } |
| 5445 | |
| 5446 | if (Arg *A = Args.getLastArg(options::OPT_show_includes)) |
| 5447 | A->render(Args, CmdArgs); |
| 5448 | |
| 5449 | // This controls whether or not we emit RTTI data for polymorphic types. |
| 5450 | if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR, |
| 5451 | /*default=*/false)) |
| 5452 | CmdArgs.push_back("-fno-rtti-data"); |
| 5453 | |
| 5454 | // This controls whether or not we emit stack-protector instrumentation. |
| 5455 | // In MSVC, Buffer Security Check (/GS) is on by default. |
| 5456 | if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_, |
| 5457 | /*default=*/true)) { |
| 5458 | CmdArgs.push_back("-stack-protector"); |
| 5459 | CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong))); |
| 5460 | } |
| 5461 | |
| 5462 | // Emit CodeView if -Z7, -Zd, or -gline-tables-only are present. |
| 5463 | if (Arg *DebugInfoArg = |
| 5464 | Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd, |
| 5465 | options::OPT_gline_tables_only)) { |
| 5466 | *EmitCodeView = true; |
| 5467 | if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7)) |
| 5468 | *DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 5469 | else |
| 5470 | *DebugInfoKind = codegenoptions::DebugLineTablesOnly; |
| 5471 | CmdArgs.push_back("-gcodeview"); |
| 5472 | } else { |
| 5473 | *EmitCodeView = false; |
| 5474 | } |
| 5475 | |
| 5476 | const Driver &D = getToolChain().getDriver(); |
| 5477 | EHFlags EH = parseClangCLEHFlags(D, Args); |
| 5478 | if (EH.Synch || EH.Asynch) { |
| 5479 | if (types::isCXX(InputType)) |
| 5480 | CmdArgs.push_back("-fcxx-exceptions"); |
| 5481 | CmdArgs.push_back("-fexceptions"); |
| 5482 | } |
| 5483 | if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC) |
| 5484 | CmdArgs.push_back("-fexternc-nounwind"); |
| 5485 | |
| 5486 | // /EP should expand to -E -P. |
| 5487 | if (Args.hasArg(options::OPT__SLASH_EP)) { |
| 5488 | CmdArgs.push_back("-E"); |
| 5489 | CmdArgs.push_back("-P"); |
| 5490 | } |
| 5491 | |
| 5492 | unsigned VolatileOptionID; |
| 5493 | if (getToolChain().getArch() == llvm::Triple::x86_64 || |
| 5494 | getToolChain().getArch() == llvm::Triple::x86) |
| 5495 | VolatileOptionID = options::OPT__SLASH_volatile_ms; |
| 5496 | else |
| 5497 | VolatileOptionID = options::OPT__SLASH_volatile_iso; |
| 5498 | |
| 5499 | if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group)) |
| 5500 | VolatileOptionID = A->getOption().getID(); |
| 5501 | |
| 5502 | if (VolatileOptionID == options::OPT__SLASH_volatile_ms) |
| 5503 | CmdArgs.push_back("-fms-volatile"); |
| 5504 | |
| 5505 | Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg); |
| 5506 | Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb); |
| 5507 | if (MostGeneralArg && BestCaseArg) |
| 5508 | D.Diag(clang::diag::err_drv_argument_not_allowed_with) |
| 5509 | << MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args); |
| 5510 | |
| 5511 | if (MostGeneralArg) { |
| 5512 | Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms); |
| 5513 | Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm); |
| 5514 | Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv); |
| 5515 | |
| 5516 | Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg; |
| 5517 | Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg; |
| 5518 | if (FirstConflict && SecondConflict && FirstConflict != SecondConflict) |
| 5519 | D.Diag(clang::diag::err_drv_argument_not_allowed_with) |
| 5520 | << FirstConflict->getAsString(Args) |
| 5521 | << SecondConflict->getAsString(Args); |
| 5522 | |
| 5523 | if (SingleArg) |
| 5524 | CmdArgs.push_back("-fms-memptr-rep=single"); |
| 5525 | else if (MultipleArg) |
| 5526 | CmdArgs.push_back("-fms-memptr-rep=multiple"); |
| 5527 | else |
| 5528 | CmdArgs.push_back("-fms-memptr-rep=virtual"); |
| 5529 | } |
| 5530 | |
| 5531 | // Parse the default calling convention options. |
| 5532 | if (Arg *CCArg = |
| 5533 | Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr, |
| 5534 | options::OPT__SLASH_Gz, options::OPT__SLASH_Gv, |
| 5535 | options::OPT__SLASH_Gregcall)) { |
| 5536 | unsigned DCCOptId = CCArg->getOption().getID(); |
| 5537 | const char *DCCFlag = nullptr; |
| 5538 | bool ArchSupported = true; |
| 5539 | llvm::Triple::ArchType Arch = getToolChain().getArch(); |
| 5540 | switch (DCCOptId) { |
| 5541 | case options::OPT__SLASH_Gd: |
| 5542 | DCCFlag = "-fdefault-calling-conv=cdecl"; |
| 5543 | break; |
| 5544 | case options::OPT__SLASH_Gr: |
| 5545 | ArchSupported = Arch == llvm::Triple::x86; |
| 5546 | DCCFlag = "-fdefault-calling-conv=fastcall"; |
| 5547 | break; |
| 5548 | case options::OPT__SLASH_Gz: |
| 5549 | ArchSupported = Arch == llvm::Triple::x86; |
| 5550 | DCCFlag = "-fdefault-calling-conv=stdcall"; |
| 5551 | break; |
| 5552 | case options::OPT__SLASH_Gv: |
| 5553 | ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64; |
| 5554 | DCCFlag = "-fdefault-calling-conv=vectorcall"; |
| 5555 | break; |
| 5556 | case options::OPT__SLASH_Gregcall: |
| 5557 | ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64; |
| 5558 | DCCFlag = "-fdefault-calling-conv=regcall"; |
| 5559 | break; |
| 5560 | } |
| 5561 | |
| 5562 | // MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either. |
| 5563 | if (ArchSupported && DCCFlag) |
| 5564 | CmdArgs.push_back(DCCFlag); |
| 5565 | } |
| 5566 | |
| 5567 | if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ)) |
| 5568 | A->render(Args, CmdArgs); |
| 5569 | |
| 5570 | if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) { |
| 5571 | CmdArgs.push_back("-fdiagnostics-format"); |
| 5572 | if (Args.hasArg(options::OPT__SLASH_fallback)) |
| 5573 | CmdArgs.push_back("msvc-fallback"); |
| 5574 | else |
| 5575 | CmdArgs.push_back("msvc"); |
| 5576 | } |
| 5577 | |
| 5578 | if (Arg *A = Args.getLastArg(options::OPT__SLASH_guard)) { |
| 5579 | SmallVector<StringRef, 1> SplitArgs; |
| 5580 | StringRef(A->getValue()).split(SplitArgs, ","); |
| 5581 | bool Instrument = false; |
| 5582 | bool NoChecks = false; |
| 5583 | for (StringRef Arg : SplitArgs) { |
| 5584 | if (Arg.equals_lower("cf")) |
| 5585 | Instrument = true; |
| 5586 | else if (Arg.equals_lower("cf-")) |
| 5587 | Instrument = false; |
| 5588 | else if (Arg.equals_lower("nochecks")) |
| 5589 | NoChecks = true; |
| 5590 | else if (Arg.equals_lower("nochecks-")) |
| 5591 | NoChecks = false; |
| 5592 | else |
| 5593 | D.Diag(diag::err_drv_invalid_value) << A->getSpelling() << Arg; |
| 5594 | } |
| 5595 | // Currently there's no support emitting CFG instrumentation; the flag only |
| 5596 | // emits the table of address-taken functions. |
| 5597 | if (Instrument || NoChecks) |
| 5598 | CmdArgs.push_back("-cfguard"); |
| 5599 | } |
| 5600 | } |
| 5601 | |
| 5602 | visualstudio::Compiler *Clang::getCLFallback() const { |
| 5603 | if (!CLFallback) |
| 5604 | CLFallback.reset(new visualstudio::Compiler(getToolChain())); |
| 5605 | return CLFallback.get(); |
| 5606 | } |
| 5607 | |
| 5608 | |
| 5609 | const char *Clang::getBaseInputName(const ArgList &Args, |
| 5610 | const InputInfo &Input) { |
| 5611 | return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput())); |
| 5612 | } |
| 5613 | |
| 5614 | const char *Clang::getBaseInputStem(const ArgList &Args, |
| 5615 | const InputInfoList &Inputs) { |
| 5616 | const char *Str = getBaseInputName(Args, Inputs[0]); |
| 5617 | |
| 5618 | if (const char *End = strrchr(Str, '.')) |
| 5619 | return Args.MakeArgString(std::string(Str, End)); |
| 5620 | |
| 5621 | return Str; |
| 5622 | } |
| 5623 | |
| 5624 | const char *Clang::getDependencyFileName(const ArgList &Args, |
| 5625 | const InputInfoList &Inputs) { |
| 5626 | // FIXME: Think about this more. |
| 5627 | std::string Res; |
| 5628 | |
| 5629 | if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) { |
| 5630 | std::string Str(OutputOpt->getValue()); |
| 5631 | Res = Str.substr(0, Str.rfind('.')); |
| 5632 | } else { |
| 5633 | Res = getBaseInputStem(Args, Inputs); |
| 5634 | } |
| 5635 | return Args.MakeArgString(Res + ".d"); |
| 5636 | } |
| 5637 | |
| 5638 | // Begin ClangAs |
| 5639 | |
| 5640 | void ClangAs::AddMIPSTargetArgs(const ArgList &Args, |
| 5641 | ArgStringList &CmdArgs) const { |
| 5642 | StringRef CPUName; |
| 5643 | StringRef ABIName; |
| 5644 | const llvm::Triple &Triple = getToolChain().getTriple(); |
| 5645 | mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); |
| 5646 | |
| 5647 | CmdArgs.push_back("-target-abi"); |
| 5648 | CmdArgs.push_back(ABIName.data()); |
| 5649 | } |
| 5650 | |
| 5651 | void ClangAs::AddX86TargetArgs(const ArgList &Args, |
| 5652 | ArgStringList &CmdArgs) const { |
| 5653 | if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { |
| 5654 | StringRef Value = A->getValue(); |
| 5655 | if (Value == "intel" || Value == "att") { |
| 5656 | CmdArgs.push_back("-mllvm"); |
| 5657 | CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); |
| 5658 | } else { |
| 5659 | getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) |
| 5660 | << A->getOption().getName() << Value; |
| 5661 | } |
| 5662 | } |
| 5663 | } |
| 5664 | |
| 5665 | void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, |
| 5666 | const InputInfo &Output, const InputInfoList &Inputs, |
| 5667 | const ArgList &Args, |
| 5668 | const char *LinkingOutput) const { |
| 5669 | ArgStringList CmdArgs; |
| 5670 | |
| 5671 | assert(Inputs.size() == 1 && "Unexpected number of inputs.")((Inputs.size() == 1 && "Unexpected number of inputs." ) ? static_cast<void> (0) : __assert_fail ("Inputs.size() == 1 && \"Unexpected number of inputs.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5671, __PRETTY_FUNCTION__)); |
| 5672 | const InputInfo &Input = Inputs[0]; |
| 5673 | |
| 5674 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
| 5675 | const std::string &TripleStr = Triple.getTriple(); |
| 5676 | const auto &D = getToolChain().getDriver(); |
| 5677 | |
| 5678 | // Don't warn about "clang -w -c foo.s" |
| 5679 | Args.ClaimAllArgs(options::OPT_w); |
| 5680 | // and "clang -emit-llvm -c foo.s" |
| 5681 | Args.ClaimAllArgs(options::OPT_emit_llvm); |
| 5682 | |
| 5683 | claimNoWarnArgs(Args); |
| 5684 | |
| 5685 | // Invoke ourselves in -cc1as mode. |
| 5686 | // |
| 5687 | // FIXME: Implement custom jobs for internal actions. |
| 5688 | CmdArgs.push_back("-cc1as"); |
| 5689 | |
| 5690 | // Add the "effective" target triple. |
| 5691 | CmdArgs.push_back("-triple"); |
| 5692 | CmdArgs.push_back(Args.MakeArgString(TripleStr)); |
| 5693 | |
| 5694 | // Set the output mode, we currently only expect to be used as a real |
| 5695 | // assembler. |
| 5696 | CmdArgs.push_back("-filetype"); |
| 5697 | CmdArgs.push_back("obj"); |
| 5698 | |
| 5699 | // Set the main file name, so that debug info works even with |
| 5700 | // -save-temps or preprocessed assembly. |
| 5701 | CmdArgs.push_back("-main-file-name"); |
| 5702 | CmdArgs.push_back(Clang::getBaseInputName(Args, Input)); |
| 5703 | |
| 5704 | // Add the target cpu |
| 5705 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ true); |
| 5706 | if (!CPU.empty()) { |
| 5707 | CmdArgs.push_back("-target-cpu"); |
| 5708 | CmdArgs.push_back(Args.MakeArgString(CPU)); |
| 5709 | } |
| 5710 | |
| 5711 | // Add the target features |
| 5712 | getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true); |
| 5713 | |
| 5714 | // Ignore explicit -force_cpusubtype_ALL option. |
| 5715 | (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); |
| 5716 | |
| 5717 | // Pass along any -I options so we get proper .include search paths. |
| 5718 | Args.AddAllArgs(CmdArgs, options::OPT_I_Group); |
| 5719 | |
| 5720 | // Determine the original source input. |
| 5721 | const Action *SourceAction = &JA; |
| 5722 | while (SourceAction->getKind() != Action::InputClass) { |
| 5723 | assert(!SourceAction->getInputs().empty() && "unexpected root action!")((!SourceAction->getInputs().empty() && "unexpected root action!" ) ? static_cast<void> (0) : __assert_fail ("!SourceAction->getInputs().empty() && \"unexpected root action!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5723, __PRETTY_FUNCTION__)); |
| 5724 | SourceAction = SourceAction->getInputs()[0]; |
| 5725 | } |
| 5726 | |
| 5727 | // Forward -g and handle debug info related flags, assuming we are dealing |
| 5728 | // with an actual assembly file. |
| 5729 | bool WantDebug = false; |
| 5730 | unsigned DwarfVersion = 0; |
| 5731 | Args.ClaimAllArgs(options::OPT_g_Group); |
| 5732 | if (Arg *A = Args.getLastArg(options::OPT_g_Group)) { |
| 5733 | WantDebug = !A->getOption().matches(options::OPT_g0) && |
| 5734 | !A->getOption().matches(options::OPT_ggdb0); |
| 5735 | if (WantDebug) |
| 5736 | DwarfVersion = DwarfVersionNum(A->getSpelling()); |
| 5737 | } |
| 5738 | if (DwarfVersion == 0) |
| 5739 | DwarfVersion = getToolChain().GetDefaultDwarfVersion(); |
| 5740 | |
| 5741 | codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; |
| 5742 | |
| 5743 | if (SourceAction->getType() == types::TY_Asm || |
| 5744 | SourceAction->getType() == types::TY_PP_Asm) { |
| 5745 | // You might think that it would be ok to set DebugInfoKind outside of |
| 5746 | // the guard for source type, however there is a test which asserts |
| 5747 | // that some assembler invocation receives no -debug-info-kind, |
| 5748 | // and it's not clear whether that test is just overly restrictive. |
| 5749 | DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo |
| 5750 | : codegenoptions::NoDebugInfo); |
| 5751 | // Add the -fdebug-compilation-dir flag if needed. |
| 5752 | addDebugCompDirArg(Args, CmdArgs); |
| 5753 | |
| 5754 | addDebugPrefixMapArg(getToolChain().getDriver(), Args, CmdArgs); |
| 5755 | |
| 5756 | // Set the AT_producer to the clang version when using the integrated |
| 5757 | // assembler on assembly source files. |
| 5758 | CmdArgs.push_back("-dwarf-debug-producer"); |
| 5759 | CmdArgs.push_back(Args.MakeArgString(getClangFullVersion())); |
| 5760 | |
| 5761 | // And pass along -I options |
| 5762 | Args.AddAllArgs(CmdArgs, options::OPT_I); |
| 5763 | } |
| 5764 | RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion, |
| 5765 | llvm::DebuggerKind::Default); |
| 5766 | RenderDebugInfoCompressionArgs(Args, CmdArgs, D, getToolChain()); |
| 5767 | |
| 5768 | |
| 5769 | // Handle -fPIC et al -- the relocation-model affects the assembler |
| 5770 | // for some targets. |
| 5771 | llvm::Reloc::Model RelocationModel; |
| 5772 | unsigned PICLevel; |
| 5773 | bool IsPIE; |
| 5774 | std::tie(RelocationModel, PICLevel, IsPIE) = |
| 5775 | ParsePICArgs(getToolChain(), Args); |
| 5776 | |
| 5777 | const char *RMName = RelocationModelName(RelocationModel); |
| 5778 | if (RMName) { |
| 5779 | CmdArgs.push_back("-mrelocation-model"); |
| 5780 | CmdArgs.push_back(RMName); |
| 5781 | } |
| 5782 | |
| 5783 | // Optionally embed the -cc1as level arguments into the debug info, for build |
| 5784 | // analysis. |
| 5785 | if (getToolChain().UseDwarfDebugFlags()) { |
| 5786 | ArgStringList OriginalArgs; |
| 5787 | for (const auto &Arg : Args) |
| 5788 | Arg->render(Args, OriginalArgs); |
| 5789 | |
| 5790 | SmallString<256> Flags; |
| 5791 | const char *Exec = getToolChain().getDriver().getClangProgramPath(); |
| 5792 | Flags += Exec; |
| 5793 | for (const char *OriginalArg : OriginalArgs) { |
| 5794 | SmallString<128> EscapedArg; |
| 5795 | EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); |
| 5796 | Flags += " "; |
| 5797 | Flags += EscapedArg; |
| 5798 | } |
| 5799 | CmdArgs.push_back("-dwarf-debug-flags"); |
| 5800 | CmdArgs.push_back(Args.MakeArgString(Flags)); |
| 5801 | } |
| 5802 | |
| 5803 | // FIXME: Add -static support, once we have it. |
| 5804 | |
| 5805 | // Add target specific flags. |
| 5806 | switch (getToolChain().getArch()) { |
| 5807 | default: |
| 5808 | break; |
| 5809 | |
| 5810 | case llvm::Triple::mips: |
| 5811 | case llvm::Triple::mipsel: |
| 5812 | case llvm::Triple::mips64: |
| 5813 | case llvm::Triple::mips64el: |
| 5814 | AddMIPSTargetArgs(Args, CmdArgs); |
| 5815 | break; |
| 5816 | |
| 5817 | case llvm::Triple::x86: |
| 5818 | case llvm::Triple::x86_64: |
| 5819 | AddX86TargetArgs(Args, CmdArgs); |
| 5820 | break; |
| 5821 | |
| 5822 | case llvm::Triple::arm: |
| 5823 | case llvm::Triple::armeb: |
| 5824 | case llvm::Triple::thumb: |
| 5825 | case llvm::Triple::thumbeb: |
| 5826 | // This isn't in AddARMTargetArgs because we want to do this for assembly |
| 5827 | // only, not C/C++. |
| 5828 | if (Args.hasFlag(options::OPT_mdefault_build_attributes, |
| 5829 | options::OPT_mno_default_build_attributes, true)) { |
| 5830 | CmdArgs.push_back("-mllvm"); |
| 5831 | CmdArgs.push_back("-arm-add-build-attributes"); |
| 5832 | } |
| 5833 | break; |
| 5834 | } |
| 5835 | |
| 5836 | // Consume all the warning flags. Usually this would be handled more |
| 5837 | // gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as |
| 5838 | // doesn't handle that so rather than warning about unused flags that are |
| 5839 | // actually used, we'll lie by omission instead. |
| 5840 | // FIXME: Stop lying and consume only the appropriate driver flags |
| 5841 | Args.ClaimAllArgs(options::OPT_W_Group); |
| 5842 | |
| 5843 | CollectArgsForIntegratedAssembler(C, Args, CmdArgs, |
| 5844 | getToolChain().getDriver()); |
| 5845 | |
| 5846 | Args.AddAllArgs(CmdArgs, options::OPT_mllvm); |
| 5847 | |
| 5848 | assert(Output.isFilename() && "Unexpected lipo output.")((Output.isFilename() && "Unexpected lipo output.") ? static_cast<void> (0) : __assert_fail ("Output.isFilename() && \"Unexpected lipo output.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5848, __PRETTY_FUNCTION__)); |
| 5849 | CmdArgs.push_back("-o"); |
| 5850 | CmdArgs.push_back(Output.getFilename()); |
| 5851 | |
| 5852 | const llvm::Triple &T = getToolChain().getTriple(); |
| 5853 | if (Args.hasArg(options::OPT_gsplit_dwarf) && |
| 5854 | (T.isOSLinux() || T.isOSFuchsia())) { |
| 5855 | CmdArgs.push_back("-split-dwarf-file"); |
| 5856 | CmdArgs.push_back(SplitDebugName(Args, Input)); |
| 5857 | } |
| 5858 | |
| 5859 | assert(Input.isFilename() && "Invalid input.")((Input.isFilename() && "Invalid input.") ? static_cast <void> (0) : __assert_fail ("Input.isFilename() && \"Invalid input.\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5859, __PRETTY_FUNCTION__)); |
| 5860 | CmdArgs.push_back(Input.getFilename()); |
| 5861 | |
| 5862 | const char *Exec = getToolChain().getDriver().getClangProgramPath(); |
| 5863 | C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
| 5864 | } |
| 5865 | |
| 5866 | // Begin OffloadBundler |
| 5867 | |
| 5868 | void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA, |
| 5869 | const InputInfo &Output, |
| 5870 | const InputInfoList &Inputs, |
| 5871 | const llvm::opt::ArgList &TCArgs, |
| 5872 | const char *LinkingOutput) const { |
| 5873 | // The version with only one output is expected to refer to a bundling job. |
| 5874 | assert(isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!")((isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!" ) ? static_cast<void> (0) : __assert_fail ("isa<OffloadBundlingJobAction>(JA) && \"Expecting bundling job!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5874, __PRETTY_FUNCTION__)); |
| 5875 | |
| 5876 | // The bundling command looks like this: |
| 5877 | // clang-offload-bundler -type=bc |
| 5878 | // -targets=host-triple,openmp-triple1,openmp-triple2 |
| 5879 | // -outputs=input_file |
| 5880 | // -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" |
| 5881 | |
| 5882 | ArgStringList CmdArgs; |
| 5883 | |
| 5884 | // Get the type. |
| 5885 | CmdArgs.push_back(TCArgs.MakeArgString( |
| 5886 | Twine("-type=") + types::getTypeTempSuffix(Output.getType()))); |
| 5887 | |
| 5888 | assert(JA.getInputs().size() == Inputs.size() &&((JA.getInputs().size() == Inputs.size() && "Not have inputs for all dependence actions??" ) ? static_cast<void> (0) : __assert_fail ("JA.getInputs().size() == Inputs.size() && \"Not have inputs for all dependence actions??\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5889, __PRETTY_FUNCTION__)) |
| 5889 | "Not have inputs for all dependence actions??")((JA.getInputs().size() == Inputs.size() && "Not have inputs for all dependence actions??" ) ? static_cast<void> (0) : __assert_fail ("JA.getInputs().size() == Inputs.size() && \"Not have inputs for all dependence actions??\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5889, __PRETTY_FUNCTION__)); |
| 5890 | |
| 5891 | // Get the targets. |
| 5892 | SmallString<128> Triples; |
| 5893 | Triples += "-targets="; |
| 5894 | for (unsigned I = 0; I < Inputs.size(); ++I) { |
| 5895 | if (I) |
| 5896 | Triples += ','; |
| 5897 | |
| 5898 | // Find ToolChain for this input. |
| 5899 | Action::OffloadKind CurKind = Action::OFK_Host; |
| 5900 | const ToolChain *CurTC = &getToolChain(); |
| 5901 | const Action *CurDep = JA.getInputs()[I]; |
| 5902 | |
| 5903 | if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) { |
| 5904 | CurTC = nullptr; |
| 5905 | OA->doOnEachDependence([&](Action *A, const ToolChain *TC, const char *) { |
| 5906 | assert(CurTC == nullptr && "Expected one dependence!")((CurTC == nullptr && "Expected one dependence!") ? static_cast <void> (0) : __assert_fail ("CurTC == nullptr && \"Expected one dependence!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5906, __PRETTY_FUNCTION__)); |
| 5907 | CurKind = A->getOffloadingDeviceKind(); |
| 5908 | CurTC = TC; |
| 5909 | }); |
| 5910 | } |
| 5911 | Triples += Action::GetOffloadKindName(CurKind); |
| 5912 | Triples += '-'; |
| 5913 | Triples += CurTC->getTriple().normalize(); |
| 5914 | if (CurKind == Action::OFK_HIP && CurDep->getOffloadingArch()) { |
| 5915 | Triples += '-'; |
| 5916 | Triples += CurDep->getOffloadingArch(); |
| 5917 | } |
| 5918 | } |
| 5919 | CmdArgs.push_back(TCArgs.MakeArgString(Triples)); |
| 5920 | |
| 5921 | // Get bundled file command. |
| 5922 | CmdArgs.push_back( |
| 5923 | TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename())); |
| 5924 | |
| 5925 | // Get unbundled files command. |
| 5926 | SmallString<128> UB; |
| 5927 | UB += "-inputs="; |
| 5928 | for (unsigned I = 0; I < Inputs.size(); ++I) { |
| 5929 | if (I) |
| 5930 | UB += ','; |
| 5931 | |
| 5932 | // Find ToolChain for this input. |
| 5933 | const ToolChain *CurTC = &getToolChain(); |
| 5934 | if (const auto *OA = dyn_cast<OffloadAction>(JA.getInputs()[I])) { |
| 5935 | CurTC = nullptr; |
| 5936 | OA->doOnEachDependence([&](Action *, const ToolChain *TC, const char *) { |
| 5937 | assert(CurTC == nullptr && "Expected one dependence!")((CurTC == nullptr && "Expected one dependence!") ? static_cast <void> (0) : __assert_fail ("CurTC == nullptr && \"Expected one dependence!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5937, __PRETTY_FUNCTION__)); |
| 5938 | CurTC = TC; |
| 5939 | }); |
| 5940 | } |
| 5941 | UB += CurTC->getInputFilename(Inputs[I]); |
| 5942 | } |
| 5943 | CmdArgs.push_back(TCArgs.MakeArgString(UB)); |
| 5944 | |
| 5945 | // All the inputs are encoded as commands. |
| 5946 | C.addCommand(llvm::make_unique<Command>( |
| 5947 | JA, *this, |
| 5948 | TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), |
| 5949 | CmdArgs, None)); |
| 5950 | } |
| 5951 | |
| 5952 | void OffloadBundler::ConstructJobMultipleOutputs( |
| 5953 | Compilation &C, const JobAction &JA, const InputInfoList &Outputs, |
| 5954 | const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, |
| 5955 | const char *LinkingOutput) const { |
| 5956 | // The version with multiple outputs is expected to refer to a unbundling job. |
| 5957 | auto &UA = cast<OffloadUnbundlingJobAction>(JA); |
| 5958 | |
| 5959 | // The unbundling command looks like this: |
| 5960 | // clang-offload-bundler -type=bc |
| 5961 | // -targets=host-triple,openmp-triple1,openmp-triple2 |
| 5962 | // -inputs=input_file |
| 5963 | // -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" |
| 5964 | // -unbundle |
| 5965 | |
| 5966 | ArgStringList CmdArgs; |
| 5967 | |
| 5968 | assert(Inputs.size() == 1 && "Expecting to unbundle a single file!")((Inputs.size() == 1 && "Expecting to unbundle a single file!" ) ? static_cast<void> (0) : __assert_fail ("Inputs.size() == 1 && \"Expecting to unbundle a single file!\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5968, __PRETTY_FUNCTION__)); |
| 5969 | InputInfo Input = Inputs.front(); |
| 5970 | |
| 5971 | // Get the type. |
| 5972 | CmdArgs.push_back(TCArgs.MakeArgString( |
| 5973 | Twine("-type=") + types::getTypeTempSuffix(Input.getType()))); |
| 5974 | |
| 5975 | // Get the targets. |
| 5976 | SmallString<128> Triples; |
| 5977 | Triples += "-targets="; |
| 5978 | auto DepInfo = UA.getDependentActionsInfo(); |
| 5979 | for (unsigned I = 0; I < DepInfo.size(); ++I) { |
| 5980 | if (I) |
| 5981 | Triples += ','; |
| 5982 | |
| 5983 | auto &Dep = DepInfo[I]; |
| 5984 | Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind); |
| 5985 | Triples += '-'; |
| 5986 | Triples += Dep.DependentToolChain->getTriple().normalize(); |
| 5987 | if (Dep.DependentOffloadKind == Action::OFK_HIP && |
| 5988 | !Dep.DependentBoundArch.empty()) { |
| 5989 | Triples += '-'; |
| 5990 | Triples += Dep.DependentBoundArch; |
| 5991 | } |
| 5992 | } |
| 5993 | |
| 5994 | CmdArgs.push_back(TCArgs.MakeArgString(Triples)); |
| 5995 | |
| 5996 | // Get bundled file command. |
| 5997 | CmdArgs.push_back( |
| 5998 | TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename())); |
| 5999 | |
| 6000 | // Get unbundled files command. |
| 6001 | SmallString<128> UB; |
| 6002 | UB += "-outputs="; |
| 6003 | for (unsigned I = 0; I < Outputs.size(); ++I) { |
| 6004 | if (I) |
| 6005 | UB += ','; |
| 6006 | UB += DepInfo[I].DependentToolChain->getInputFilename(Outputs[I]); |
| 6007 | } |
| 6008 | CmdArgs.push_back(TCArgs.MakeArgString(UB)); |
| 6009 | CmdArgs.push_back("-unbundle"); |
| 6010 | |
| 6011 | // All the inputs are encoded as commands. |
| 6012 | C.addCommand(llvm::make_unique<Command>( |
| 6013 | JA, *this, |
| 6014 | TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), |
| 6015 | CmdArgs, None)); |
| 6016 | } |