| File: | tools/clang/lib/Driver/ToolChains/Clang.cpp |
| Warning: | line 3116, 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/Config/config.h" |
| 29 | #include "clang/Driver/DriverDiagnostic.h" |
| 30 | #include "clang/Driver/Options.h" |
| 31 | #include "clang/Driver/SanitizerArgs.h" |
| 32 | #include "clang/Driver/XRayArgs.h" |
| 33 | #include "llvm/ADT/StringExtras.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 | |
| 135 | if (JA.isHostOffloading(Action::OFK_OpenMP)) { |
| 136 | auto TCs = C.getOffloadToolChains<Action::OFK_OpenMP>(); |
| 137 | for (auto II = TCs.first, IE = TCs.second; II != IE; ++II) |
| 138 | Work(*II->second); |
| 139 | } else if (JA.isDeviceOffloading(Action::OFK_OpenMP)) |
| 140 | Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); |
| 141 | |
| 142 | // |
| 143 | // TODO: Add support for other offloading programming models here. |
| 144 | // |
| 145 | } |
| 146 | |
| 147 | /// This is a helper function for validating the optional refinement step |
| 148 | /// parameter in reciprocal argument strings. Return false if there is an error |
| 149 | /// parsing the refinement step. Otherwise, return true and set the Position |
| 150 | /// of the refinement step in the input string. |
| 151 | static bool getRefinementStep(StringRef In, const Driver &D, |
| 152 | const Arg &A, size_t &Position) { |
| 153 | const char RefinementStepToken = ':'; |
| 154 | Position = In.find(RefinementStepToken); |
| 155 | if (Position != StringRef::npos) { |
| 156 | StringRef Option = A.getOption().getName(); |
| 157 | StringRef RefStep = In.substr(Position + 1); |
| 158 | // Allow exactly one numeric character for the additional refinement |
| 159 | // step parameter. This is reasonable for all currently-supported |
| 160 | // operations and architectures because we would expect that a larger value |
| 161 | // of refinement steps would cause the estimate "optimization" to |
| 162 | // under-perform the native operation. Also, if the estimate does not |
| 163 | // converge quickly, it probably will not ever converge, so further |
| 164 | // refinement steps will not produce a better answer. |
| 165 | if (RefStep.size() != 1) { |
| 166 | D.Diag(diag::err_drv_invalid_value) << Option << RefStep; |
| 167 | return false; |
| 168 | } |
| 169 | char RefStepChar = RefStep[0]; |
| 170 | if (RefStepChar < '0' || RefStepChar > '9') { |
| 171 | D.Diag(diag::err_drv_invalid_value) << Option << RefStep; |
| 172 | return false; |
| 173 | } |
| 174 | } |
| 175 | return true; |
| 176 | } |
| 177 | |
| 178 | /// The -mrecip flag requires processing of many optional parameters. |
| 179 | static void ParseMRecip(const Driver &D, const ArgList &Args, |
| 180 | ArgStringList &OutStrings) { |
| 181 | StringRef DisabledPrefixIn = "!"; |
| 182 | StringRef DisabledPrefixOut = "!"; |
| 183 | StringRef EnabledPrefixOut = ""; |
| 184 | StringRef Out = "-mrecip="; |
| 185 | |
| 186 | Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ); |
| 187 | if (!A) |
| 188 | return; |
| 189 | |
| 190 | unsigned NumOptions = A->getNumValues(); |
| 191 | if (NumOptions == 0) { |
| 192 | // No option is the same as "all". |
| 193 | OutStrings.push_back(Args.MakeArgString(Out + "all")); |
| 194 | return; |
| 195 | } |
| 196 | |
| 197 | // Pass through "all", "none", or "default" with an optional refinement step. |
| 198 | if (NumOptions == 1) { |
| 199 | StringRef Val = A->getValue(0); |
| 200 | size_t RefStepLoc; |
| 201 | if (!getRefinementStep(Val, D, *A, RefStepLoc)) |
| 202 | return; |
| 203 | StringRef ValBase = Val.slice(0, RefStepLoc); |
| 204 | if (ValBase == "all" || ValBase == "none" || ValBase == "default") { |
| 205 | OutStrings.push_back(Args.MakeArgString(Out + Val)); |
| 206 | return; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | // Each reciprocal type may be enabled or disabled individually. |
| 211 | // Check each input value for validity, concatenate them all back together, |
| 212 | // and pass through. |
| 213 | |
| 214 | llvm::StringMap<bool> OptionStrings; |
| 215 | OptionStrings.insert(std::make_pair("divd", false)); |
| 216 | OptionStrings.insert(std::make_pair("divf", false)); |
| 217 | OptionStrings.insert(std::make_pair("vec-divd", false)); |
| 218 | OptionStrings.insert(std::make_pair("vec-divf", false)); |
| 219 | OptionStrings.insert(std::make_pair("sqrtd", false)); |
| 220 | OptionStrings.insert(std::make_pair("sqrtf", false)); |
| 221 | OptionStrings.insert(std::make_pair("vec-sqrtd", false)); |
| 222 | OptionStrings.insert(std::make_pair("vec-sqrtf", false)); |
| 223 | |
| 224 | for (unsigned i = 0; i != NumOptions; ++i) { |
| 225 | StringRef Val = A->getValue(i); |
| 226 | |
| 227 | bool IsDisabled = Val.startswith(DisabledPrefixIn); |
| 228 | // Ignore the disablement token for string matching. |
| 229 | if (IsDisabled) |
| 230 | Val = Val.substr(1); |
| 231 | |
| 232 | size_t RefStep; |
| 233 | if (!getRefinementStep(Val, D, *A, RefStep)) |
| 234 | return; |
| 235 | |
| 236 | StringRef ValBase = Val.slice(0, RefStep); |
| 237 | llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase); |
| 238 | if (OptionIter == OptionStrings.end()) { |
| 239 | // Try again specifying float suffix. |
| 240 | OptionIter = OptionStrings.find(ValBase.str() + 'f'); |
| 241 | if (OptionIter == OptionStrings.end()) { |
| 242 | // The input name did not match any known option string. |
| 243 | D.Diag(diag::err_drv_unknown_argument) << Val; |
| 244 | return; |
| 245 | } |
| 246 | // The option was specified without a float or double suffix. |
| 247 | // Make sure that the double entry was not already specified. |
| 248 | // The float entry will be checked below. |
| 249 | if (OptionStrings[ValBase.str() + 'd']) { |
| 250 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; |
| 251 | return; |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | if (OptionIter->second == true) { |
| 256 | // Duplicate option specified. |
| 257 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; |
| 258 | return; |
| 259 | } |
| 260 | |
| 261 | // Mark the matched option as found. Do not allow duplicate specifiers. |
| 262 | OptionIter->second = true; |
| 263 | |
| 264 | // If the precision was not specified, also mark the double entry as found. |
| 265 | if (ValBase.back() != 'f' && ValBase.back() != 'd') |
| 266 | OptionStrings[ValBase.str() + 'd'] = true; |
| 267 | |
| 268 | // Build the output string. |
| 269 | StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut; |
| 270 | Out = Args.MakeArgString(Out + Prefix + Val); |
| 271 | if (i != NumOptions - 1) |
| 272 | Out = Args.MakeArgString(Out + ","); |
| 273 | } |
| 274 | |
| 275 | OutStrings.push_back(Args.MakeArgString(Out)); |
| 276 | } |
| 277 | |
| 278 | /// The -mprefer-vector-width option accepts either a positive integer |
| 279 | /// or the string "none". |
| 280 | static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args, |
| 281 | ArgStringList &CmdArgs) { |
| 282 | Arg *A = Args.getLastArg(options::OPT_mprefer_vector_width_EQ); |
| 283 | if (!A) |
| 284 | return; |
| 285 | |
| 286 | StringRef Value = A->getValue(); |
| 287 | if (Value == "none") { |
| 288 | CmdArgs.push_back("-mprefer-vector-width=none"); |
| 289 | } else { |
| 290 | unsigned Width; |
| 291 | if (Value.getAsInteger(10, Width)) { |
| 292 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Value; |
| 293 | return; |
| 294 | } |
| 295 | CmdArgs.push_back(Args.MakeArgString("-mprefer-vector-width=" + Value)); |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | static void getWebAssemblyTargetFeatures(const ArgList &Args, |
| 300 | std::vector<StringRef> &Features) { |
| 301 | handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group); |
| 302 | } |
| 303 | |
| 304 | static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, |
| 305 | const ArgList &Args, ArgStringList &CmdArgs, |
| 306 | bool ForAS) { |
| 307 | const Driver &D = TC.getDriver(); |
| 308 | std::vector<StringRef> Features; |
| 309 | switch (Triple.getArch()) { |
| 310 | default: |
| 311 | break; |
| 312 | case llvm::Triple::mips: |
| 313 | case llvm::Triple::mipsel: |
| 314 | case llvm::Triple::mips64: |
| 315 | case llvm::Triple::mips64el: |
| 316 | mips::getMIPSTargetFeatures(D, Triple, Args, Features); |
| 317 | break; |
| 318 | |
| 319 | case llvm::Triple::arm: |
| 320 | case llvm::Triple::armeb: |
| 321 | case llvm::Triple::thumb: |
| 322 | case llvm::Triple::thumbeb: |
| 323 | arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS); |
| 324 | break; |
| 325 | |
| 326 | case llvm::Triple::ppc: |
| 327 | case llvm::Triple::ppc64: |
| 328 | case llvm::Triple::ppc64le: |
| 329 | ppc::getPPCTargetFeatures(D, Triple, Args, Features); |
| 330 | break; |
| 331 | case llvm::Triple::riscv32: |
| 332 | case llvm::Triple::riscv64: |
| 333 | riscv::getRISCVTargetFeatures(D, Args, Features); |
| 334 | break; |
| 335 | case llvm::Triple::systemz: |
| 336 | systemz::getSystemZTargetFeatures(Args, Features); |
| 337 | break; |
| 338 | case llvm::Triple::aarch64: |
| 339 | case llvm::Triple::aarch64_be: |
| 340 | aarch64::getAArch64TargetFeatures(D, Args, Features); |
| 341 | break; |
| 342 | case llvm::Triple::x86: |
| 343 | case llvm::Triple::x86_64: |
| 344 | x86::getX86TargetFeatures(D, Triple, Args, Features); |
| 345 | break; |
| 346 | case llvm::Triple::hexagon: |
| 347 | hexagon::getHexagonTargetFeatures(D, Args, Features); |
| 348 | break; |
| 349 | case llvm::Triple::wasm32: |
| 350 | case llvm::Triple::wasm64: |
| 351 | getWebAssemblyTargetFeatures(Args, Features); |
| 352 | break; |
| 353 | case llvm::Triple::sparc: |
| 354 | case llvm::Triple::sparcel: |
| 355 | case llvm::Triple::sparcv9: |
| 356 | sparc::getSparcTargetFeatures(D, Args, Features); |
| 357 | break; |
| 358 | case llvm::Triple::r600: |
| 359 | case llvm::Triple::amdgcn: |
| 360 | amdgpu::getAMDGPUTargetFeatures(D, Args, Features); |
| 361 | break; |
| 362 | } |
| 363 | |
| 364 | // Find the last of each feature. |
| 365 | llvm::StringMap<unsigned> LastOpt; |
| 366 | for (unsigned I = 0, N = Features.size(); I < N; ++I) { |
| 367 | StringRef Name = Features[I]; |
| 368 | assert(Name[0] == '-' || Name[0] == '+')(static_cast <bool> (Name[0] == '-' || Name[0] == '+') ? void (0) : __assert_fail ("Name[0] == '-' || Name[0] == '+'" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 368, __extension__ __PRETTY_FUNCTION__)); |
| 369 | LastOpt[Name.drop_front(1)] = I; |
| 370 | } |
| 371 | |
| 372 | for (unsigned I = 0, N = Features.size(); I < N; ++I) { |
| 373 | // If this feature was overridden, ignore it. |
| 374 | StringRef Name = Features[I]; |
| 375 | llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1)); |
| 376 | assert(LastI != LastOpt.end())(static_cast <bool> (LastI != LastOpt.end()) ? void (0) : __assert_fail ("LastI != LastOpt.end()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 376, __extension__ __PRETTY_FUNCTION__)); |
| 377 | unsigned Last = LastI->second; |
| 378 | if (Last != I) |
| 379 | continue; |
| 380 | |
| 381 | CmdArgs.push_back("-target-feature"); |
| 382 | CmdArgs.push_back(Name.data()); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | static bool |
| 387 | shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime, |
| 388 | const llvm::Triple &Triple) { |
| 389 | // We use the zero-cost exception tables for Objective-C if the non-fragile |
| 390 | // ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and |
| 391 | // later. |
| 392 | if (runtime.isNonFragile()) |
| 393 | return true; |
| 394 | |
| 395 | if (!Triple.isMacOSX()) |
| 396 | return false; |
| 397 | |
| 398 | return (!Triple.isMacOSXVersionLT(10, 5) && |
| 399 | (Triple.getArch() == llvm::Triple::x86_64 || |
| 400 | Triple.getArch() == llvm::Triple::arm)); |
| 401 | } |
| 402 | |
| 403 | /// Adds exception related arguments to the driver command arguments. There's a |
| 404 | /// master flag, -fexceptions and also language specific flags to enable/disable |
| 405 | /// C++ and Objective-C exceptions. This makes it possible to for example |
| 406 | /// disable C++ exceptions but enable Objective-C exceptions. |
| 407 | static void addExceptionArgs(const ArgList &Args, types::ID InputType, |
| 408 | const ToolChain &TC, bool KernelOrKext, |
| 409 | const ObjCRuntime &objcRuntime, |
| 410 | ArgStringList &CmdArgs) { |
| 411 | const Driver &D = TC.getDriver(); |
| 412 | const llvm::Triple &Triple = TC.getTriple(); |
| 413 | |
| 414 | if (KernelOrKext) { |
| 415 | // -mkernel and -fapple-kext imply no exceptions, so claim exception related |
| 416 | // arguments now to avoid warnings about unused arguments. |
| 417 | Args.ClaimAllArgs(options::OPT_fexceptions); |
| 418 | Args.ClaimAllArgs(options::OPT_fno_exceptions); |
| 419 | Args.ClaimAllArgs(options::OPT_fobjc_exceptions); |
| 420 | Args.ClaimAllArgs(options::OPT_fno_objc_exceptions); |
| 421 | Args.ClaimAllArgs(options::OPT_fcxx_exceptions); |
| 422 | Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions); |
| 423 | return; |
| 424 | } |
| 425 | |
| 426 | // See if the user explicitly enabled exceptions. |
| 427 | bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, |
| 428 | false); |
| 429 | |
| 430 | // Obj-C exceptions are enabled by default, regardless of -fexceptions. This |
| 431 | // is not necessarily sensible, but follows GCC. |
| 432 | if (types::isObjC(InputType) && |
| 433 | Args.hasFlag(options::OPT_fobjc_exceptions, |
| 434 | options::OPT_fno_objc_exceptions, true)) { |
| 435 | CmdArgs.push_back("-fobjc-exceptions"); |
| 436 | |
| 437 | EH |= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple); |
| 438 | } |
| 439 | |
| 440 | if (types::isCXX(InputType)) { |
| 441 | // Disable C++ EH by default on XCore and PS4. |
| 442 | bool CXXExceptionsEnabled = |
| 443 | Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU(); |
| 444 | Arg *ExceptionArg = Args.getLastArg( |
| 445 | options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions, |
| 446 | options::OPT_fexceptions, options::OPT_fno_exceptions); |
| 447 | if (ExceptionArg) |
| 448 | CXXExceptionsEnabled = |
| 449 | ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) || |
| 450 | ExceptionArg->getOption().matches(options::OPT_fexceptions); |
| 451 | |
| 452 | if (CXXExceptionsEnabled) { |
| 453 | if (Triple.isPS4CPU()) { |
| 454 | ToolChain::RTTIMode RTTIMode = TC.getRTTIMode(); |
| 455 | assert(ExceptionArg &&(static_cast <bool> (ExceptionArg && "On the PS4 exceptions should only be enabled if passing " "an argument") ? void (0) : __assert_fail ("ExceptionArg && \"On the PS4 exceptions should only be enabled if passing \" \"an argument\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 457, __extension__ __PRETTY_FUNCTION__)) |
| 456 | "On the PS4 exceptions should only be enabled if passing "(static_cast <bool> (ExceptionArg && "On the PS4 exceptions should only be enabled if passing " "an argument") ? void (0) : __assert_fail ("ExceptionArg && \"On the PS4 exceptions should only be enabled if passing \" \"an argument\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 457, __extension__ __PRETTY_FUNCTION__)) |
| 457 | "an argument")(static_cast <bool> (ExceptionArg && "On the PS4 exceptions should only be enabled if passing " "an argument") ? void (0) : __assert_fail ("ExceptionArg && \"On the PS4 exceptions should only be enabled if passing \" \"an argument\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 457, __extension__ __PRETTY_FUNCTION__)); |
| 458 | if (RTTIMode == ToolChain::RM_DisabledExplicitly) { |
| 459 | const Arg *RTTIArg = TC.getRTTIArg(); |
| 460 | assert(RTTIArg && "RTTI disabled explicitly but no RTTIArg!")(static_cast <bool> (RTTIArg && "RTTI disabled explicitly but no RTTIArg!" ) ? void (0) : __assert_fail ("RTTIArg && \"RTTI disabled explicitly but no RTTIArg!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 460, __extension__ __PRETTY_FUNCTION__)); |
| 461 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 462 | << RTTIArg->getAsString(Args) << ExceptionArg->getAsString(Args); |
| 463 | } else if (RTTIMode == ToolChain::RM_EnabledImplicitly) |
| 464 | D.Diag(diag::warn_drv_enabling_rtti_with_exceptions); |
| 465 | } else |
| 466 | assert(TC.getRTTIMode() != ToolChain::RM_DisabledImplicitly)(static_cast <bool> (TC.getRTTIMode() != ToolChain::RM_DisabledImplicitly ) ? void (0) : __assert_fail ("TC.getRTTIMode() != ToolChain::RM_DisabledImplicitly" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 466, __extension__ __PRETTY_FUNCTION__)); |
| 467 | |
| 468 | CmdArgs.push_back("-fcxx-exceptions"); |
| 469 | |
| 470 | EH = true; |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | if (EH) |
| 475 | CmdArgs.push_back("-fexceptions"); |
| 476 | } |
| 477 | |
| 478 | static bool ShouldDisableAutolink(const ArgList &Args, const ToolChain &TC) { |
| 479 | bool Default = true; |
| 480 | if (TC.getTriple().isOSDarwin()) { |
| 481 | // The native darwin assembler doesn't support the linker_option directives, |
| 482 | // so we disable them if we think the .s file will be passed to it. |
| 483 | Default = TC.useIntegratedAs(); |
| 484 | } |
| 485 | return !Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink, |
| 486 | Default); |
| 487 | } |
| 488 | |
| 489 | static bool ShouldDisableDwarfDirectory(const ArgList &Args, |
| 490 | const ToolChain &TC) { |
| 491 | bool UseDwarfDirectory = |
| 492 | Args.hasFlag(options::OPT_fdwarf_directory_asm, |
| 493 | options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs()); |
| 494 | return !UseDwarfDirectory; |
| 495 | } |
| 496 | |
| 497 | // Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases |
| 498 | // to the corresponding DebugInfoKind. |
| 499 | static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) { |
| 500 | assert(A.getOption().matches(options::OPT_gN_Group) &&(static_cast <bool> (A.getOption().matches(options::OPT_gN_Group ) && "Not a -g option that specifies a debug-info level" ) ? 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-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 501, __extension__ __PRETTY_FUNCTION__)) |
| 501 | "Not a -g option that specifies a debug-info level")(static_cast <bool> (A.getOption().matches(options::OPT_gN_Group ) && "Not a -g option that specifies a debug-info level" ) ? 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-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 501, __extension__ __PRETTY_FUNCTION__)); |
| 502 | if (A.getOption().matches(options::OPT_g0) || |
| 503 | A.getOption().matches(options::OPT_ggdb0)) |
| 504 | return codegenoptions::NoDebugInfo; |
| 505 | if (A.getOption().matches(options::OPT_gline_tables_only) || |
| 506 | A.getOption().matches(options::OPT_ggdb1)) |
| 507 | return codegenoptions::DebugLineTablesOnly; |
| 508 | return codegenoptions::LimitedDebugInfo; |
| 509 | } |
| 510 | |
| 511 | static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) { |
| 512 | switch (Triple.getArch()){ |
| 513 | default: |
| 514 | return false; |
| 515 | case llvm::Triple::arm: |
| 516 | case llvm::Triple::thumb: |
| 517 | // ARM Darwin targets require a frame pointer to be always present to aid |
| 518 | // offline debugging via backtraces. |
| 519 | return Triple.isOSDarwin(); |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | static bool useFramePointerForTargetByDefault(const ArgList &Args, |
| 524 | const llvm::Triple &Triple) { |
| 525 | switch (Triple.getArch()) { |
| 526 | case llvm::Triple::xcore: |
| 527 | case llvm::Triple::wasm32: |
| 528 | case llvm::Triple::wasm64: |
| 529 | // XCore never wants frame pointers, regardless of OS. |
| 530 | // WebAssembly never wants frame pointers. |
| 531 | return false; |
| 532 | default: |
| 533 | break; |
| 534 | } |
| 535 | |
| 536 | if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI) { |
| 537 | switch (Triple.getArch()) { |
| 538 | // Don't use a frame pointer on linux if optimizing for certain targets. |
| 539 | case llvm::Triple::mips64: |
| 540 | case llvm::Triple::mips64el: |
| 541 | case llvm::Triple::mips: |
| 542 | case llvm::Triple::mipsel: |
| 543 | case llvm::Triple::ppc: |
| 544 | case llvm::Triple::ppc64: |
| 545 | case llvm::Triple::ppc64le: |
| 546 | case llvm::Triple::systemz: |
| 547 | case llvm::Triple::x86: |
| 548 | case llvm::Triple::x86_64: |
| 549 | return !areOptimizationsEnabled(Args); |
| 550 | default: |
| 551 | return true; |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | switch (Triple.getArch()) { |
| 556 | case llvm::Triple::riscv32: |
| 557 | case llvm::Triple::riscv64: |
| 558 | return !areOptimizationsEnabled(Args); |
| 559 | default: |
| 560 | break; |
| 561 | } |
| 562 | |
| 563 | if (Triple.isOSWindows()) { |
| 564 | switch (Triple.getArch()) { |
| 565 | case llvm::Triple::x86: |
| 566 | return !areOptimizationsEnabled(Args); |
| 567 | case llvm::Triple::x86_64: |
| 568 | return Triple.isOSBinFormatMachO(); |
| 569 | case llvm::Triple::arm: |
| 570 | case llvm::Triple::thumb: |
| 571 | // Windows on ARM builds with FPO disabled to aid fast stack walking |
| 572 | return true; |
| 573 | default: |
| 574 | // All other supported Windows ISAs use xdata unwind information, so frame |
| 575 | // pointers are not generally useful. |
| 576 | return false; |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | return true; |
| 581 | } |
| 582 | |
| 583 | static bool shouldUseFramePointer(const ArgList &Args, |
| 584 | const llvm::Triple &Triple) { |
| 585 | if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer, |
| 586 | options::OPT_fomit_frame_pointer)) |
| 587 | return A->getOption().matches(options::OPT_fno_omit_frame_pointer) || |
| 588 | mustUseNonLeafFramePointerForTarget(Triple); |
| 589 | |
| 590 | if (Args.hasArg(options::OPT_pg)) |
| 591 | return true; |
| 592 | |
| 593 | return useFramePointerForTargetByDefault(Args, Triple); |
| 594 | } |
| 595 | |
| 596 | static bool shouldUseLeafFramePointer(const ArgList &Args, |
| 597 | const llvm::Triple &Triple) { |
| 598 | if (Arg *A = Args.getLastArg(options::OPT_mno_omit_leaf_frame_pointer, |
| 599 | options::OPT_momit_leaf_frame_pointer)) |
| 600 | return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer); |
| 601 | |
| 602 | if (Args.hasArg(options::OPT_pg)) |
| 603 | return true; |
| 604 | |
| 605 | if (Triple.isPS4CPU()) |
| 606 | return false; |
| 607 | |
| 608 | return useFramePointerForTargetByDefault(Args, Triple); |
| 609 | } |
| 610 | |
| 611 | /// Add a CC1 option to specify the debug compilation directory. |
| 612 | static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) { |
| 613 | SmallString<128> cwd; |
| 614 | if (!llvm::sys::fs::current_path(cwd)) { |
| 615 | CmdArgs.push_back("-fdebug-compilation-dir"); |
| 616 | CmdArgs.push_back(Args.MakeArgString(cwd)); |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | /// \brief Vectorize at all optimization levels greater than 1 except for -Oz. |
| 621 | /// For -Oz the loop vectorizer is disable, while the slp vectorizer is enabled. |
| 622 | static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) { |
| 623 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
| 624 | if (A->getOption().matches(options::OPT_O4) || |
| 625 | A->getOption().matches(options::OPT_Ofast)) |
| 626 | return true; |
| 627 | |
| 628 | if (A->getOption().matches(options::OPT_O0)) |
| 629 | return false; |
| 630 | |
| 631 | assert(A->getOption().matches(options::OPT_O) && "Must have a -O flag")(static_cast <bool> (A->getOption().matches(options:: OPT_O) && "Must have a -O flag") ? void (0) : __assert_fail ("A->getOption().matches(options::OPT_O) && \"Must have a -O flag\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 631, __extension__ __PRETTY_FUNCTION__)); |
| 632 | |
| 633 | // Vectorize -Os. |
| 634 | StringRef S(A->getValue()); |
| 635 | if (S == "s") |
| 636 | return true; |
| 637 | |
| 638 | // Don't vectorize -Oz, unless it's the slp vectorizer. |
| 639 | if (S == "z") |
| 640 | return isSlpVec; |
| 641 | |
| 642 | unsigned OptLevel = 0; |
| 643 | if (S.getAsInteger(10, OptLevel)) |
| 644 | return false; |
| 645 | |
| 646 | return OptLevel > 1; |
| 647 | } |
| 648 | |
| 649 | return false; |
| 650 | } |
| 651 | |
| 652 | /// Add -x lang to \p CmdArgs for \p Input. |
| 653 | static void addDashXForInput(const ArgList &Args, const InputInfo &Input, |
| 654 | ArgStringList &CmdArgs) { |
| 655 | // When using -verify-pch, we don't want to provide the type |
| 656 | // 'precompiled-header' if it was inferred from the file extension |
| 657 | if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH) |
| 658 | return; |
| 659 | |
| 660 | CmdArgs.push_back("-x"); |
| 661 | if (Args.hasArg(options::OPT_rewrite_objc)) |
| 662 | CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX)); |
| 663 | else { |
| 664 | // Map the driver type to the frontend type. This is mostly an identity |
| 665 | // mapping, except that the distinction between module interface units |
| 666 | // and other source files does not exist at the frontend layer. |
| 667 | const char *ClangType; |
| 668 | switch (Input.getType()) { |
| 669 | case types::TY_CXXModule: |
| 670 | ClangType = "c++"; |
| 671 | break; |
| 672 | case types::TY_PP_CXXModule: |
| 673 | ClangType = "c++-cpp-output"; |
| 674 | break; |
| 675 | default: |
| 676 | ClangType = types::getTypeName(Input.getType()); |
| 677 | break; |
| 678 | } |
| 679 | CmdArgs.push_back(ClangType); |
| 680 | } |
| 681 | } |
| 682 | |
| 683 | static void appendUserToPath(SmallVectorImpl<char> &Result) { |
| 684 | #ifdef LLVM_ON_UNIX1 |
| 685 | const char *Username = getenv("LOGNAME"); |
| 686 | #else |
| 687 | const char *Username = getenv("USERNAME"); |
| 688 | #endif |
| 689 | if (Username) { |
| 690 | // Validate that LoginName can be used in a path, and get its length. |
| 691 | size_t Len = 0; |
| 692 | for (const char *P = Username; *P; ++P, ++Len) { |
| 693 | if (!clang::isAlphanumeric(*P) && *P != '_') { |
| 694 | Username = nullptr; |
| 695 | break; |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | if (Username && Len > 0) { |
| 700 | Result.append(Username, Username + Len); |
| 701 | return; |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | // Fallback to user id. |
| 706 | #ifdef LLVM_ON_UNIX1 |
| 707 | std::string UID = llvm::utostr(getuid()); |
| 708 | #else |
| 709 | // FIXME: Windows seems to have an 'SID' that might work. |
| 710 | std::string UID = "9999"; |
| 711 | #endif |
| 712 | Result.append(UID.begin(), UID.end()); |
| 713 | } |
| 714 | |
| 715 | static void addPGOAndCoverageFlags(Compilation &C, const Driver &D, |
| 716 | const InputInfo &Output, const ArgList &Args, |
| 717 | ArgStringList &CmdArgs) { |
| 718 | |
| 719 | auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate, |
| 720 | options::OPT_fprofile_generate_EQ, |
| 721 | options::OPT_fno_profile_generate); |
| 722 | if (PGOGenerateArg && |
| 723 | PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate)) |
| 724 | PGOGenerateArg = nullptr; |
| 725 | |
| 726 | auto *ProfileGenerateArg = Args.getLastArg( |
| 727 | options::OPT_fprofile_instr_generate, |
| 728 | options::OPT_fprofile_instr_generate_EQ, |
| 729 | options::OPT_fno_profile_instr_generate); |
| 730 | if (ProfileGenerateArg && |
| 731 | ProfileGenerateArg->getOption().matches( |
| 732 | options::OPT_fno_profile_instr_generate)) |
| 733 | ProfileGenerateArg = nullptr; |
| 734 | |
| 735 | if (PGOGenerateArg && ProfileGenerateArg) |
| 736 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 737 | << PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling(); |
| 738 | |
| 739 | auto *ProfileUseArg = getLastProfileUseArg(Args); |
| 740 | |
| 741 | if (PGOGenerateArg && ProfileUseArg) |
| 742 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 743 | << ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling(); |
| 744 | |
| 745 | if (ProfileGenerateArg && ProfileUseArg) |
| 746 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 747 | << ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling(); |
| 748 | |
| 749 | if (ProfileGenerateArg) { |
| 750 | if (ProfileGenerateArg->getOption().matches( |
| 751 | options::OPT_fprofile_instr_generate_EQ)) |
| 752 | CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") + |
| 753 | ProfileGenerateArg->getValue())); |
| 754 | // The default is to use Clang Instrumentation. |
| 755 | CmdArgs.push_back("-fprofile-instrument=clang"); |
| 756 | } |
| 757 | |
| 758 | if (PGOGenerateArg) { |
| 759 | CmdArgs.push_back("-fprofile-instrument=llvm"); |
| 760 | if (PGOGenerateArg->getOption().matches( |
| 761 | options::OPT_fprofile_generate_EQ)) { |
| 762 | SmallString<128> Path(PGOGenerateArg->getValue()); |
| 763 | llvm::sys::path::append(Path, "default_%m.profraw"); |
| 764 | CmdArgs.push_back( |
| 765 | Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path)); |
| 766 | } |
| 767 | } |
| 768 | |
| 769 | if (ProfileUseArg) { |
| 770 | if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ)) |
| 771 | CmdArgs.push_back(Args.MakeArgString( |
| 772 | Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue())); |
| 773 | else if ((ProfileUseArg->getOption().matches( |
| 774 | options::OPT_fprofile_use_EQ) || |
| 775 | ProfileUseArg->getOption().matches( |
| 776 | options::OPT_fprofile_instr_use))) { |
| 777 | SmallString<128> Path( |
| 778 | ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue()); |
| 779 | if (Path.empty() || llvm::sys::fs::is_directory(Path)) |
| 780 | llvm::sys::path::append(Path, "default.profdata"); |
| 781 | CmdArgs.push_back( |
| 782 | Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path)); |
| 783 | } |
| 784 | } |
| 785 | |
| 786 | if (Args.hasArg(options::OPT_ftest_coverage) || |
| 787 | Args.hasArg(options::OPT_coverage)) |
| 788 | CmdArgs.push_back("-femit-coverage-notes"); |
| 789 | if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, |
| 790 | false) || |
| 791 | Args.hasArg(options::OPT_coverage)) |
| 792 | CmdArgs.push_back("-femit-coverage-data"); |
| 793 | |
| 794 | if (Args.hasFlag(options::OPT_fcoverage_mapping, |
| 795 | options::OPT_fno_coverage_mapping, false)) { |
| 796 | if (!ProfileGenerateArg) |
| 797 | D.Diag(clang::diag::err_drv_argument_only_allowed_with) |
| 798 | << "-fcoverage-mapping" |
| 799 | << "-fprofile-instr-generate"; |
| 800 | |
| 801 | CmdArgs.push_back("-fcoverage-mapping"); |
| 802 | } |
| 803 | |
| 804 | if (C.getArgs().hasArg(options::OPT_c) || |
| 805 | C.getArgs().hasArg(options::OPT_S)) { |
| 806 | if (Output.isFilename()) { |
| 807 | CmdArgs.push_back("-coverage-notes-file"); |
| 808 | SmallString<128> OutputFilename; |
| 809 | if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) |
| 810 | OutputFilename = FinalOutput->getValue(); |
| 811 | else |
| 812 | OutputFilename = llvm::sys::path::filename(Output.getBaseInput()); |
| 813 | SmallString<128> CoverageFilename = OutputFilename; |
| 814 | if (llvm::sys::path::is_relative(CoverageFilename)) { |
| 815 | SmallString<128> Pwd; |
| 816 | if (!llvm::sys::fs::current_path(Pwd)) { |
| 817 | llvm::sys::path::append(Pwd, CoverageFilename); |
| 818 | CoverageFilename.swap(Pwd); |
| 819 | } |
| 820 | } |
| 821 | llvm::sys::path::replace_extension(CoverageFilename, "gcno"); |
| 822 | CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); |
| 823 | |
| 824 | // Leave -fprofile-dir= an unused argument unless .gcda emission is |
| 825 | // enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider |
| 826 | // the flag used. There is no -fno-profile-dir, so the user has no |
| 827 | // targeted way to suppress the warning. |
| 828 | if (Args.hasArg(options::OPT_fprofile_arcs) || |
| 829 | Args.hasArg(options::OPT_coverage)) { |
| 830 | CmdArgs.push_back("-coverage-data-file"); |
| 831 | if (Arg *FProfileDir = Args.getLastArg(options::OPT_fprofile_dir)) { |
| 832 | CoverageFilename = FProfileDir->getValue(); |
| 833 | llvm::sys::path::append(CoverageFilename, OutputFilename); |
| 834 | } |
| 835 | llvm::sys::path::replace_extension(CoverageFilename, "gcda"); |
| 836 | CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); |
| 837 | } |
| 838 | } |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | /// \brief Check whether the given input tree contains any compilation actions. |
| 843 | static bool ContainsCompileAction(const Action *A) { |
| 844 | if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A)) |
| 845 | return true; |
| 846 | |
| 847 | for (const auto &AI : A->inputs()) |
| 848 | if (ContainsCompileAction(AI)) |
| 849 | return true; |
| 850 | |
| 851 | return false; |
| 852 | } |
| 853 | |
| 854 | /// \brief Check if -relax-all should be passed to the internal assembler. |
| 855 | /// This is done by default when compiling non-assembler source with -O0. |
| 856 | static bool UseRelaxAll(Compilation &C, const ArgList &Args) { |
| 857 | bool RelaxDefault = true; |
| 858 | |
| 859 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) |
| 860 | RelaxDefault = A->getOption().matches(options::OPT_O0); |
| 861 | |
| 862 | if (RelaxDefault) { |
| 863 | RelaxDefault = false; |
| 864 | for (const auto &Act : C.getActions()) { |
| 865 | if (ContainsCompileAction(Act)) { |
| 866 | RelaxDefault = true; |
| 867 | break; |
| 868 | } |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all, |
| 873 | RelaxDefault); |
| 874 | } |
| 875 | |
| 876 | // Extract the integer N from a string spelled "-dwarf-N", returning 0 |
| 877 | // on mismatch. The StringRef input (rather than an Arg) allows |
| 878 | // for use by the "-Xassembler" option parser. |
| 879 | static unsigned DwarfVersionNum(StringRef ArgValue) { |
| 880 | return llvm::StringSwitch<unsigned>(ArgValue) |
| 881 | .Case("-gdwarf-2", 2) |
| 882 | .Case("-gdwarf-3", 3) |
| 883 | .Case("-gdwarf-4", 4) |
| 884 | .Case("-gdwarf-5", 5) |
| 885 | .Default(0); |
| 886 | } |
| 887 | |
| 888 | static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs, |
| 889 | codegenoptions::DebugInfoKind DebugInfoKind, |
| 890 | unsigned DwarfVersion, |
| 891 | llvm::DebuggerKind DebuggerTuning) { |
| 892 | switch (DebugInfoKind) { |
| 893 | case codegenoptions::DebugLineTablesOnly: |
| 894 | CmdArgs.push_back("-debug-info-kind=line-tables-only"); |
| 895 | break; |
| 896 | case codegenoptions::LimitedDebugInfo: |
| 897 | CmdArgs.push_back("-debug-info-kind=limited"); |
| 898 | break; |
| 899 | case codegenoptions::FullDebugInfo: |
| 900 | CmdArgs.push_back("-debug-info-kind=standalone"); |
| 901 | break; |
| 902 | default: |
| 903 | break; |
| 904 | } |
| 905 | if (DwarfVersion > 0) |
| 906 | CmdArgs.push_back( |
| 907 | Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion))); |
| 908 | switch (DebuggerTuning) { |
| 909 | case llvm::DebuggerKind::GDB: |
| 910 | CmdArgs.push_back("-debugger-tuning=gdb"); |
| 911 | break; |
| 912 | case llvm::DebuggerKind::LLDB: |
| 913 | CmdArgs.push_back("-debugger-tuning=lldb"); |
| 914 | break; |
| 915 | case llvm::DebuggerKind::SCE: |
| 916 | CmdArgs.push_back("-debugger-tuning=sce"); |
| 917 | break; |
| 918 | default: |
| 919 | break; |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | static void RenderDebugInfoCompressionArgs(const ArgList &Args, |
| 924 | ArgStringList &CmdArgs, |
| 925 | const Driver &D) { |
| 926 | const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ); |
| 927 | if (!A) |
| 928 | return; |
| 929 | |
| 930 | if (A->getOption().getID() == options::OPT_gz) { |
| 931 | if (llvm::zlib::isAvailable()) |
| 932 | CmdArgs.push_back("-compress-debug-sections"); |
| 933 | else |
| 934 | D.Diag(diag::warn_debug_compression_unavailable); |
| 935 | return; |
| 936 | } |
| 937 | |
| 938 | StringRef Value = A->getValue(); |
| 939 | if (Value == "none") { |
| 940 | CmdArgs.push_back("-compress-debug-sections=none"); |
| 941 | } else if (Value == "zlib" || Value == "zlib-gnu") { |
| 942 | if (llvm::zlib::isAvailable()) { |
| 943 | CmdArgs.push_back( |
| 944 | Args.MakeArgString("-compress-debug-sections=" + Twine(Value))); |
| 945 | } else { |
| 946 | D.Diag(diag::warn_debug_compression_unavailable); |
| 947 | } |
| 948 | } else { |
| 949 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 950 | << A->getOption().getName() << Value; |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | static const char *RelocationModelName(llvm::Reloc::Model Model) { |
| 955 | switch (Model) { |
| 956 | case llvm::Reloc::Static: |
| 957 | return "static"; |
| 958 | case llvm::Reloc::PIC_: |
| 959 | return "pic"; |
| 960 | case llvm::Reloc::DynamicNoPIC: |
| 961 | return "dynamic-no-pic"; |
| 962 | case llvm::Reloc::ROPI: |
| 963 | return "ropi"; |
| 964 | case llvm::Reloc::RWPI: |
| 965 | return "rwpi"; |
| 966 | case llvm::Reloc::ROPI_RWPI: |
| 967 | return "ropi-rwpi"; |
| 968 | } |
| 969 | llvm_unreachable("Unknown Reloc::Model kind")::llvm::llvm_unreachable_internal("Unknown Reloc::Model kind" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 969); |
| 970 | } |
| 971 | |
| 972 | void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA, |
| 973 | const Driver &D, const ArgList &Args, |
| 974 | ArgStringList &CmdArgs, |
| 975 | const InputInfo &Output, |
| 976 | const InputInfoList &Inputs) const { |
| 977 | Arg *A; |
| 978 | const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU(); |
| 979 | |
| 980 | CheckPreprocessingOptions(D, Args); |
| 981 | |
| 982 | Args.AddLastArg(CmdArgs, options::OPT_C); |
| 983 | Args.AddLastArg(CmdArgs, options::OPT_CC); |
| 984 | |
| 985 | // Handle dependency file generation. |
| 986 | if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) || |
| 987 | (A = Args.getLastArg(options::OPT_MD)) || |
| 988 | (A = Args.getLastArg(options::OPT_MMD))) { |
| 989 | // Determine the output location. |
| 990 | const char *DepFile; |
| 991 | if (Arg *MF = Args.getLastArg(options::OPT_MF)) { |
| 992 | DepFile = MF->getValue(); |
| 993 | C.addFailureResultFile(DepFile, &JA); |
| 994 | } else if (Output.getType() == types::TY_Dependencies) { |
| 995 | DepFile = Output.getFilename(); |
| 996 | } else if (A->getOption().matches(options::OPT_M) || |
| 997 | A->getOption().matches(options::OPT_MM)) { |
| 998 | DepFile = "-"; |
| 999 | } else { |
| 1000 | DepFile = getDependencyFileName(Args, Inputs); |
| 1001 | C.addFailureResultFile(DepFile, &JA); |
| 1002 | } |
| 1003 | CmdArgs.push_back("-dependency-file"); |
| 1004 | CmdArgs.push_back(DepFile); |
| 1005 | |
| 1006 | // Add a default target if one wasn't specified. |
| 1007 | if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) { |
| 1008 | const char *DepTarget; |
| 1009 | |
| 1010 | // If user provided -o, that is the dependency target, except |
| 1011 | // when we are only generating a dependency file. |
| 1012 | Arg *OutputOpt = Args.getLastArg(options::OPT_o); |
| 1013 | if (OutputOpt && Output.getType() != types::TY_Dependencies) { |
| 1014 | DepTarget = OutputOpt->getValue(); |
| 1015 | } else { |
| 1016 | // Otherwise derive from the base input. |
| 1017 | // |
| 1018 | // FIXME: This should use the computed output file location. |
| 1019 | SmallString<128> P(Inputs[0].getBaseInput()); |
| 1020 | llvm::sys::path::replace_extension(P, "o"); |
| 1021 | DepTarget = Args.MakeArgString(llvm::sys::path::filename(P)); |
| 1022 | } |
| 1023 | |
| 1024 | if (!A->getOption().matches(options::OPT_MD) && !A->getOption().matches(options::OPT_MMD)) { |
| 1025 | CmdArgs.push_back("-w"); |
| 1026 | } |
| 1027 | CmdArgs.push_back("-MT"); |
| 1028 | SmallString<128> Quoted; |
| 1029 | QuoteTarget(DepTarget, Quoted); |
| 1030 | CmdArgs.push_back(Args.MakeArgString(Quoted)); |
| 1031 | } |
| 1032 | |
| 1033 | if (A->getOption().matches(options::OPT_M) || |
| 1034 | A->getOption().matches(options::OPT_MD)) |
| 1035 | CmdArgs.push_back("-sys-header-deps"); |
| 1036 | if ((isa<PrecompileJobAction>(JA) && |
| 1037 | !Args.hasArg(options::OPT_fno_module_file_deps)) || |
| 1038 | Args.hasArg(options::OPT_fmodule_file_deps)) |
| 1039 | CmdArgs.push_back("-module-file-deps"); |
| 1040 | } |
| 1041 | |
| 1042 | if (Args.hasArg(options::OPT_MG)) { |
| 1043 | if (!A || A->getOption().matches(options::OPT_MD) || |
| 1044 | A->getOption().matches(options::OPT_MMD)) |
| 1045 | D.Diag(diag::err_drv_mg_requires_m_or_mm); |
| 1046 | CmdArgs.push_back("-MG"); |
| 1047 | } |
| 1048 | |
| 1049 | Args.AddLastArg(CmdArgs, options::OPT_MP); |
| 1050 | Args.AddLastArg(CmdArgs, options::OPT_MV); |
| 1051 | |
| 1052 | // Convert all -MQ <target> args to -MT <quoted target> |
| 1053 | for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) { |
| 1054 | A->claim(); |
| 1055 | |
| 1056 | if (A->getOption().matches(options::OPT_MQ)) { |
| 1057 | CmdArgs.push_back("-MT"); |
| 1058 | SmallString<128> Quoted; |
| 1059 | QuoteTarget(A->getValue(), Quoted); |
| 1060 | CmdArgs.push_back(Args.MakeArgString(Quoted)); |
| 1061 | |
| 1062 | // -MT flag - no change |
| 1063 | } else { |
| 1064 | A->render(Args, CmdArgs); |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | // Add offload include arguments specific for CUDA. This must happen before |
| 1069 | // we -I or -include anything else, because we must pick up the CUDA headers |
| 1070 | // from the particular CUDA installation, rather than from e.g. |
| 1071 | // /usr/local/include. |
| 1072 | if (JA.isOffloading(Action::OFK_Cuda)) |
| 1073 | getToolChain().AddCudaIncludeArgs(Args, CmdArgs); |
| 1074 | |
| 1075 | // Add -i* options, and automatically translate to |
| 1076 | // -include-pch/-include-pth for transparent PCH support. It's |
| 1077 | // wonky, but we include looking for .gch so we can support seamless |
| 1078 | // replacement into a build system already set up to be generating |
| 1079 | // .gch files. |
| 1080 | int YcIndex = -1, YuIndex = -1; |
| 1081 | { |
| 1082 | int AI = -1; |
| 1083 | const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc); |
| 1084 | const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu); |
| 1085 | for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { |
| 1086 | // Walk the whole i_Group and skip non "-include" flags so that the index |
| 1087 | // here matches the index in the next loop below. |
| 1088 | ++AI; |
| 1089 | if (!A->getOption().matches(options::OPT_include)) |
| 1090 | continue; |
| 1091 | if (YcArg && strcmp(A->getValue(), YcArg->getValue()) == 0) |
| 1092 | YcIndex = AI; |
| 1093 | if (YuArg && strcmp(A->getValue(), YuArg->getValue()) == 0) |
| 1094 | YuIndex = AI; |
| 1095 | } |
| 1096 | } |
| 1097 | if (isa<PrecompileJobAction>(JA) && YcIndex != -1) { |
| 1098 | Driver::InputList Inputs; |
| 1099 | D.BuildInputs(getToolChain(), C.getArgs(), Inputs); |
| 1100 | assert(Inputs.size() == 1 && "Need one input when building pch")(static_cast <bool> (Inputs.size() == 1 && "Need one input when building pch" ) ? void (0) : __assert_fail ("Inputs.size() == 1 && \"Need one input when building pch\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1100, __extension__ __PRETTY_FUNCTION__)); |
| 1101 | CmdArgs.push_back(Args.MakeArgString(Twine("-find-pch-source=") + |
| 1102 | Inputs[0].second->getValue())); |
| 1103 | } |
| 1104 | |
| 1105 | bool RenderedImplicitInclude = false; |
| 1106 | int AI = -1; |
| 1107 | for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { |
| 1108 | ++AI; |
| 1109 | |
| 1110 | if (getToolChain().getDriver().IsCLMode() && |
| 1111 | A->getOption().matches(options::OPT_include)) { |
| 1112 | // In clang-cl mode, /Ycfoo.h means that all code up to a foo.h |
| 1113 | // include is compiled into foo.h, and everything after goes into |
| 1114 | // the .obj file. /Yufoo.h means that all includes prior to and including |
| 1115 | // foo.h are completely skipped and replaced with a use of the pch file |
| 1116 | // for foo.h. (Each flag can have at most one value, multiple /Yc flags |
| 1117 | // just mean that the last one wins.) If /Yc and /Yu are both present |
| 1118 | // and refer to the same file, /Yc wins. |
| 1119 | // Note that OPT__SLASH_FI gets mapped to OPT_include. |
| 1120 | // FIXME: The code here assumes that /Yc and /Yu refer to the same file. |
| 1121 | // cl.exe seems to support both flags with different values, but that |
| 1122 | // seems strange (which flag does /Fp now refer to?), so don't implement |
| 1123 | // that until someone needs it. |
| 1124 | int PchIndex = YcIndex != -1 ? YcIndex : YuIndex; |
| 1125 | if (PchIndex != -1) { |
| 1126 | if (isa<PrecompileJobAction>(JA)) { |
| 1127 | // When building the pch, skip all includes after the pch. |
| 1128 | assert(YcIndex != -1 && PchIndex == YcIndex)(static_cast <bool> (YcIndex != -1 && PchIndex == YcIndex) ? void (0) : __assert_fail ("YcIndex != -1 && PchIndex == YcIndex" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1128, __extension__ __PRETTY_FUNCTION__)); |
| 1129 | if (AI >= YcIndex) |
| 1130 | continue; |
| 1131 | } else { |
| 1132 | // When using the pch, skip all includes prior to the pch. |
| 1133 | if (AI < PchIndex) { |
| 1134 | A->claim(); |
| 1135 | continue; |
| 1136 | } |
| 1137 | if (AI == PchIndex) { |
| 1138 | A->claim(); |
| 1139 | CmdArgs.push_back("-include-pch"); |
| 1140 | CmdArgs.push_back( |
| 1141 | Args.MakeArgString(D.GetClPchPath(C, A->getValue()))); |
| 1142 | continue; |
| 1143 | } |
| 1144 | } |
| 1145 | } |
| 1146 | } else if (A->getOption().matches(options::OPT_include)) { |
| 1147 | // Handling of gcc-style gch precompiled headers. |
| 1148 | bool IsFirstImplicitInclude = !RenderedImplicitInclude; |
| 1149 | RenderedImplicitInclude = true; |
| 1150 | |
| 1151 | // Use PCH if the user requested it. |
| 1152 | bool UsePCH = D.CCCUsePCH; |
| 1153 | |
| 1154 | bool FoundPTH = false; |
| 1155 | bool FoundPCH = false; |
| 1156 | SmallString<128> P(A->getValue()); |
| 1157 | // We want the files to have a name like foo.h.pch. Add a dummy extension |
| 1158 | // so that replace_extension does the right thing. |
| 1159 | P += ".dummy"; |
| 1160 | if (UsePCH) { |
| 1161 | llvm::sys::path::replace_extension(P, "pch"); |
| 1162 | if (llvm::sys::fs::exists(P)) |
| 1163 | FoundPCH = true; |
| 1164 | } |
| 1165 | |
| 1166 | if (!FoundPCH) { |
| 1167 | llvm::sys::path::replace_extension(P, "pth"); |
| 1168 | if (llvm::sys::fs::exists(P)) |
| 1169 | FoundPTH = true; |
| 1170 | } |
| 1171 | |
| 1172 | if (!FoundPCH && !FoundPTH) { |
| 1173 | llvm::sys::path::replace_extension(P, "gch"); |
| 1174 | if (llvm::sys::fs::exists(P)) { |
| 1175 | FoundPCH = UsePCH; |
| 1176 | FoundPTH = !UsePCH; |
| 1177 | } |
| 1178 | } |
| 1179 | |
| 1180 | if (FoundPCH || FoundPTH) { |
| 1181 | if (IsFirstImplicitInclude) { |
| 1182 | A->claim(); |
| 1183 | if (UsePCH) |
| 1184 | CmdArgs.push_back("-include-pch"); |
| 1185 | else |
| 1186 | CmdArgs.push_back("-include-pth"); |
| 1187 | CmdArgs.push_back(Args.MakeArgString(P)); |
| 1188 | continue; |
| 1189 | } else { |
| 1190 | // Ignore the PCH if not first on command line and emit warning. |
| 1191 | D.Diag(diag::warn_drv_pch_not_first_include) << P |
| 1192 | << A->getAsString(Args); |
| 1193 | } |
| 1194 | } |
| 1195 | } else if (A->getOption().matches(options::OPT_isystem_after)) { |
| 1196 | // Handling of paths which must come late. These entries are handled by |
| 1197 | // the toolchain itself after the resource dir is inserted in the right |
| 1198 | // search order. |
| 1199 | // Do not claim the argument so that the use of the argument does not |
| 1200 | // silently go unnoticed on toolchains which do not honour the option. |
| 1201 | continue; |
| 1202 | } |
| 1203 | |
| 1204 | // Not translated, render as usual. |
| 1205 | A->claim(); |
| 1206 | A->render(Args, CmdArgs); |
| 1207 | } |
| 1208 | |
| 1209 | Args.AddAllArgs(CmdArgs, |
| 1210 | {options::OPT_D, options::OPT_U, options::OPT_I_Group, |
| 1211 | options::OPT_F, options::OPT_index_header_map}); |
| 1212 | |
| 1213 | // Add -Wp, and -Xpreprocessor if using the preprocessor. |
| 1214 | |
| 1215 | // FIXME: There is a very unfortunate problem here, some troubled |
| 1216 | // souls abuse -Wp, to pass preprocessor options in gcc syntax. To |
| 1217 | // really support that we would have to parse and then translate |
| 1218 | // those options. :( |
| 1219 | Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA, |
| 1220 | options::OPT_Xpreprocessor); |
| 1221 | |
| 1222 | // -I- is a deprecated GCC feature, reject it. |
| 1223 | if (Arg *A = Args.getLastArg(options::OPT_I_)) |
| 1224 | D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args); |
| 1225 | |
| 1226 | // If we have a --sysroot, and don't have an explicit -isysroot flag, add an |
| 1227 | // -isysroot to the CC1 invocation. |
| 1228 | StringRef sysroot = C.getSysRoot(); |
| 1229 | if (sysroot != "") { |
| 1230 | if (!Args.hasArg(options::OPT_isysroot)) { |
| 1231 | CmdArgs.push_back("-isysroot"); |
| 1232 | CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); |
| 1233 | } |
| 1234 | } |
| 1235 | |
| 1236 | // Parse additional include paths from environment variables. |
| 1237 | // FIXME: We should probably sink the logic for handling these from the |
| 1238 | // frontend into the driver. It will allow deleting 4 otherwise unused flags. |
| 1239 | // CPATH - included following the user specified includes (but prior to |
| 1240 | // builtin and standard includes). |
| 1241 | addDirectoryList(Args, CmdArgs, "-I", "CPATH"); |
| 1242 | // C_INCLUDE_PATH - system includes enabled when compiling C. |
| 1243 | addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH"); |
| 1244 | // CPLUS_INCLUDE_PATH - system includes enabled when compiling C++. |
| 1245 | addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH"); |
| 1246 | // OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC. |
| 1247 | addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH"); |
| 1248 | // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++. |
| 1249 | addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH"); |
| 1250 | |
| 1251 | // While adding the include arguments, we also attempt to retrieve the |
| 1252 | // arguments of related offloading toolchains or arguments that are specific |
| 1253 | // of an offloading programming model. |
| 1254 | |
| 1255 | // Add C++ include arguments, if needed. |
| 1256 | if (types::isCXX(Inputs[0].getType())) |
| 1257 | forAllAssociatedToolChains(C, JA, getToolChain(), |
| 1258 | [&Args, &CmdArgs](const ToolChain &TC) { |
| 1259 | TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs); |
| 1260 | }); |
| 1261 | |
| 1262 | // Add system include arguments for all targets but IAMCU. |
| 1263 | if (!IsIAMCU) |
| 1264 | forAllAssociatedToolChains(C, JA, getToolChain(), |
| 1265 | [&Args, &CmdArgs](const ToolChain &TC) { |
| 1266 | TC.AddClangSystemIncludeArgs(Args, CmdArgs); |
| 1267 | }); |
| 1268 | else { |
| 1269 | // For IAMCU add special include arguments. |
| 1270 | getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs); |
| 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | // FIXME: Move to target hook. |
| 1275 | static bool isSignedCharDefault(const llvm::Triple &Triple) { |
| 1276 | switch (Triple.getArch()) { |
| 1277 | default: |
| 1278 | return true; |
| 1279 | |
| 1280 | case llvm::Triple::aarch64: |
| 1281 | case llvm::Triple::aarch64_be: |
| 1282 | case llvm::Triple::arm: |
| 1283 | case llvm::Triple::armeb: |
| 1284 | case llvm::Triple::thumb: |
| 1285 | case llvm::Triple::thumbeb: |
| 1286 | if (Triple.isOSDarwin() || Triple.isOSWindows()) |
| 1287 | return true; |
| 1288 | return false; |
| 1289 | |
| 1290 | case llvm::Triple::ppc: |
| 1291 | case llvm::Triple::ppc64: |
| 1292 | if (Triple.isOSDarwin()) |
| 1293 | return true; |
| 1294 | return false; |
| 1295 | |
| 1296 | case llvm::Triple::hexagon: |
| 1297 | case llvm::Triple::ppc64le: |
| 1298 | case llvm::Triple::riscv32: |
| 1299 | case llvm::Triple::riscv64: |
| 1300 | case llvm::Triple::systemz: |
| 1301 | case llvm::Triple::xcore: |
| 1302 | return false; |
| 1303 | } |
| 1304 | } |
| 1305 | |
| 1306 | static bool isNoCommonDefault(const llvm::Triple &Triple) { |
| 1307 | switch (Triple.getArch()) { |
| 1308 | default: |
| 1309 | if (Triple.isOSFuchsia()) |
| 1310 | return true; |
| 1311 | return false; |
| 1312 | |
| 1313 | case llvm::Triple::xcore: |
| 1314 | case llvm::Triple::wasm32: |
| 1315 | case llvm::Triple::wasm64: |
| 1316 | return true; |
| 1317 | } |
| 1318 | } |
| 1319 | |
| 1320 | void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args, |
| 1321 | ArgStringList &CmdArgs, bool KernelOrKext) const { |
| 1322 | // Select the ABI to use. |
| 1323 | // FIXME: Support -meabi. |
| 1324 | // FIXME: Parts of this are duplicated in the backend, unify this somehow. |
| 1325 | const char *ABIName = nullptr; |
| 1326 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
| 1327 | ABIName = A->getValue(); |
| 1328 | else { |
| 1329 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); |
| 1330 | ABIName = llvm::ARM::computeDefaultTargetABI(Triple, CPU).data(); |
| 1331 | } |
| 1332 | |
| 1333 | CmdArgs.push_back("-target-abi"); |
| 1334 | CmdArgs.push_back(ABIName); |
| 1335 | |
| 1336 | // Determine floating point ABI from the options & target defaults. |
| 1337 | arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args); |
| 1338 | if (ABI == arm::FloatABI::Soft) { |
| 1339 | // Floating point operations and argument passing are soft. |
| 1340 | // FIXME: This changes CPP defines, we need -target-soft-float. |
| 1341 | CmdArgs.push_back("-msoft-float"); |
| 1342 | CmdArgs.push_back("-mfloat-abi"); |
| 1343 | CmdArgs.push_back("soft"); |
| 1344 | } else if (ABI == arm::FloatABI::SoftFP) { |
| 1345 | // Floating point operations are hard, but argument passing is soft. |
| 1346 | CmdArgs.push_back("-mfloat-abi"); |
| 1347 | CmdArgs.push_back("soft"); |
| 1348 | } else { |
| 1349 | // Floating point operations and argument passing are hard. |
| 1350 | assert(ABI == arm::FloatABI::Hard && "Invalid float abi!")(static_cast <bool> (ABI == arm::FloatABI::Hard && "Invalid float abi!") ? void (0) : __assert_fail ("ABI == arm::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1350, __extension__ __PRETTY_FUNCTION__)); |
| 1351 | CmdArgs.push_back("-mfloat-abi"); |
| 1352 | CmdArgs.push_back("hard"); |
| 1353 | } |
| 1354 | |
| 1355 | // Forward the -mglobal-merge option for explicit control over the pass. |
| 1356 | if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, |
| 1357 | options::OPT_mno_global_merge)) { |
| 1358 | CmdArgs.push_back("-backend-option"); |
| 1359 | if (A->getOption().matches(options::OPT_mno_global_merge)) |
| 1360 | CmdArgs.push_back("-arm-global-merge=false"); |
| 1361 | else |
| 1362 | CmdArgs.push_back("-arm-global-merge=true"); |
| 1363 | } |
| 1364 | |
| 1365 | if (!Args.hasFlag(options::OPT_mimplicit_float, |
| 1366 | options::OPT_mno_implicit_float, true)) |
| 1367 | CmdArgs.push_back("-no-implicit-float"); |
| 1368 | } |
| 1369 | |
| 1370 | void Clang::RenderTargetOptions(const llvm::Triple &EffectiveTriple, |
| 1371 | const ArgList &Args, bool KernelOrKext, |
| 1372 | ArgStringList &CmdArgs) const { |
| 1373 | const ToolChain &TC = getToolChain(); |
| 1374 | |
| 1375 | // Add the target features |
| 1376 | getTargetFeatures(TC, EffectiveTriple, Args, CmdArgs, false); |
| 1377 | |
| 1378 | // Add target specific flags. |
| 1379 | switch (TC.getArch()) { |
| 1380 | default: |
| 1381 | break; |
| 1382 | |
| 1383 | case llvm::Triple::arm: |
| 1384 | case llvm::Triple::armeb: |
| 1385 | case llvm::Triple::thumb: |
| 1386 | case llvm::Triple::thumbeb: |
| 1387 | // Use the effective triple, which takes into account the deployment target. |
| 1388 | AddARMTargetArgs(EffectiveTriple, Args, CmdArgs, KernelOrKext); |
| 1389 | CmdArgs.push_back("-fallow-half-arguments-and-returns"); |
| 1390 | break; |
| 1391 | |
| 1392 | case llvm::Triple::aarch64: |
| 1393 | case llvm::Triple::aarch64_be: |
| 1394 | AddAArch64TargetArgs(Args, CmdArgs); |
| 1395 | CmdArgs.push_back("-fallow-half-arguments-and-returns"); |
| 1396 | break; |
| 1397 | |
| 1398 | case llvm::Triple::mips: |
| 1399 | case llvm::Triple::mipsel: |
| 1400 | case llvm::Triple::mips64: |
| 1401 | case llvm::Triple::mips64el: |
| 1402 | AddMIPSTargetArgs(Args, CmdArgs); |
| 1403 | break; |
| 1404 | |
| 1405 | case llvm::Triple::ppc: |
| 1406 | case llvm::Triple::ppc64: |
| 1407 | case llvm::Triple::ppc64le: |
| 1408 | AddPPCTargetArgs(Args, CmdArgs); |
| 1409 | break; |
| 1410 | |
| 1411 | case llvm::Triple::riscv32: |
| 1412 | case llvm::Triple::riscv64: |
| 1413 | AddRISCVTargetArgs(Args, CmdArgs); |
| 1414 | break; |
| 1415 | |
| 1416 | case llvm::Triple::sparc: |
| 1417 | case llvm::Triple::sparcel: |
| 1418 | case llvm::Triple::sparcv9: |
| 1419 | AddSparcTargetArgs(Args, CmdArgs); |
| 1420 | break; |
| 1421 | |
| 1422 | case llvm::Triple::systemz: |
| 1423 | AddSystemZTargetArgs(Args, CmdArgs); |
| 1424 | break; |
| 1425 | |
| 1426 | case llvm::Triple::x86: |
| 1427 | case llvm::Triple::x86_64: |
| 1428 | AddX86TargetArgs(Args, CmdArgs); |
| 1429 | break; |
| 1430 | |
| 1431 | case llvm::Triple::lanai: |
| 1432 | AddLanaiTargetArgs(Args, CmdArgs); |
| 1433 | break; |
| 1434 | |
| 1435 | case llvm::Triple::hexagon: |
| 1436 | AddHexagonTargetArgs(Args, CmdArgs); |
| 1437 | break; |
| 1438 | |
| 1439 | case llvm::Triple::wasm32: |
| 1440 | case llvm::Triple::wasm64: |
| 1441 | AddWebAssemblyTargetArgs(Args, CmdArgs); |
| 1442 | break; |
| 1443 | } |
| 1444 | } |
| 1445 | |
| 1446 | void Clang::AddAArch64TargetArgs(const ArgList &Args, |
| 1447 | ArgStringList &CmdArgs) const { |
| 1448 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
| 1449 | |
| 1450 | if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || |
| 1451 | Args.hasArg(options::OPT_mkernel) || |
| 1452 | Args.hasArg(options::OPT_fapple_kext)) |
| 1453 | CmdArgs.push_back("-disable-red-zone"); |
| 1454 | |
| 1455 | if (!Args.hasFlag(options::OPT_mimplicit_float, |
| 1456 | options::OPT_mno_implicit_float, true)) |
| 1457 | CmdArgs.push_back("-no-implicit-float"); |
| 1458 | |
| 1459 | const char *ABIName = nullptr; |
| 1460 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
| 1461 | ABIName = A->getValue(); |
| 1462 | else if (Triple.isOSDarwin()) |
| 1463 | ABIName = "darwinpcs"; |
| 1464 | else |
| 1465 | ABIName = "aapcs"; |
| 1466 | |
| 1467 | CmdArgs.push_back("-target-abi"); |
| 1468 | CmdArgs.push_back(ABIName); |
| 1469 | |
| 1470 | if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769, |
| 1471 | options::OPT_mno_fix_cortex_a53_835769)) { |
| 1472 | CmdArgs.push_back("-backend-option"); |
| 1473 | if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769)) |
| 1474 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); |
| 1475 | else |
| 1476 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0"); |
| 1477 | } else if (Triple.isAndroid()) { |
| 1478 | // Enabled A53 errata (835769) workaround by default on android |
| 1479 | CmdArgs.push_back("-backend-option"); |
| 1480 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); |
| 1481 | } |
| 1482 | |
| 1483 | // Forward the -mglobal-merge option for explicit control over the pass. |
| 1484 | if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, |
| 1485 | options::OPT_mno_global_merge)) { |
| 1486 | CmdArgs.push_back("-backend-option"); |
| 1487 | if (A->getOption().matches(options::OPT_mno_global_merge)) |
| 1488 | CmdArgs.push_back("-aarch64-enable-global-merge=false"); |
| 1489 | else |
| 1490 | CmdArgs.push_back("-aarch64-enable-global-merge=true"); |
| 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | void Clang::AddMIPSTargetArgs(const ArgList &Args, |
| 1495 | ArgStringList &CmdArgs) const { |
| 1496 | const Driver &D = getToolChain().getDriver(); |
| 1497 | StringRef CPUName; |
| 1498 | StringRef ABIName; |
| 1499 | const llvm::Triple &Triple = getToolChain().getTriple(); |
| 1500 | mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); |
| 1501 | |
| 1502 | CmdArgs.push_back("-target-abi"); |
| 1503 | CmdArgs.push_back(ABIName.data()); |
| 1504 | |
| 1505 | mips::FloatABI ABI = mips::getMipsFloatABI(D, Args); |
| 1506 | if (ABI == mips::FloatABI::Soft) { |
| 1507 | // Floating point operations and argument passing are soft. |
| 1508 | CmdArgs.push_back("-msoft-float"); |
| 1509 | CmdArgs.push_back("-mfloat-abi"); |
| 1510 | CmdArgs.push_back("soft"); |
| 1511 | } else { |
| 1512 | // Floating point operations and argument passing are hard. |
| 1513 | assert(ABI == mips::FloatABI::Hard && "Invalid float abi!")(static_cast <bool> (ABI == mips::FloatABI::Hard && "Invalid float abi!") ? void (0) : __assert_fail ("ABI == mips::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1513, __extension__ __PRETTY_FUNCTION__)); |
| 1514 | CmdArgs.push_back("-mfloat-abi"); |
| 1515 | CmdArgs.push_back("hard"); |
| 1516 | } |
| 1517 | |
| 1518 | if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) { |
| 1519 | if (A->getOption().matches(options::OPT_mxgot)) { |
| 1520 | CmdArgs.push_back("-mllvm"); |
| 1521 | CmdArgs.push_back("-mxgot"); |
| 1522 | } |
| 1523 | } |
| 1524 | |
| 1525 | if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1, |
| 1526 | options::OPT_mno_ldc1_sdc1)) { |
| 1527 | if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) { |
| 1528 | CmdArgs.push_back("-mllvm"); |
| 1529 | CmdArgs.push_back("-mno-ldc1-sdc1"); |
| 1530 | } |
| 1531 | } |
| 1532 | |
| 1533 | if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division, |
| 1534 | options::OPT_mno_check_zero_division)) { |
| 1535 | if (A->getOption().matches(options::OPT_mno_check_zero_division)) { |
| 1536 | CmdArgs.push_back("-mllvm"); |
| 1537 | CmdArgs.push_back("-mno-check-zero-division"); |
| 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | if (Arg *A = Args.getLastArg(options::OPT_G)) { |
| 1542 | StringRef v = A->getValue(); |
| 1543 | CmdArgs.push_back("-mllvm"); |
| 1544 | CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v)); |
| 1545 | A->claim(); |
| 1546 | } |
| 1547 | |
| 1548 | Arg *GPOpt = Args.getLastArg(options::OPT_mgpopt, options::OPT_mno_gpopt); |
| 1549 | Arg *ABICalls = |
| 1550 | Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls); |
| 1551 | |
| 1552 | // -mabicalls is the default for many MIPS environments, even with -fno-pic. |
| 1553 | // -mgpopt is the default for static, -fno-pic environments but these two |
| 1554 | // options conflict. We want to be certain that -mno-abicalls -mgpopt is |
| 1555 | // the only case where -mllvm -mgpopt is passed. |
| 1556 | // NOTE: We need a warning here or in the backend to warn when -mgpopt is |
| 1557 | // passed explicitly when compiling something with -mabicalls |
| 1558 | // (implictly) in affect. Currently the warning is in the backend. |
| 1559 | // |
| 1560 | // When the ABI in use is N64, we also need to determine the PIC mode that |
| 1561 | // is in use, as -fno-pic for N64 implies -mno-abicalls. |
| 1562 | bool NoABICalls = |
| 1563 | ABICalls && ABICalls->getOption().matches(options::OPT_mno_abicalls); |
| 1564 | |
| 1565 | llvm::Reloc::Model RelocationModel; |
| 1566 | unsigned PICLevel; |
| 1567 | bool IsPIE; |
| 1568 | std::tie(RelocationModel, PICLevel, IsPIE) = |
| 1569 | ParsePICArgs(getToolChain(), Args); |
| 1570 | |
| 1571 | NoABICalls = NoABICalls || |
| 1572 | (RelocationModel == llvm::Reloc::Static && ABIName == "n64"); |
| 1573 | |
| 1574 | bool WantGPOpt = GPOpt && GPOpt->getOption().matches(options::OPT_mgpopt); |
| 1575 | // We quietly ignore -mno-gpopt as the backend defaults to -mno-gpopt. |
| 1576 | if (NoABICalls && (!GPOpt || WantGPOpt)) { |
| 1577 | CmdArgs.push_back("-mllvm"); |
| 1578 | CmdArgs.push_back("-mgpopt"); |
| 1579 | |
| 1580 | Arg *LocalSData = Args.getLastArg(options::OPT_mlocal_sdata, |
| 1581 | options::OPT_mno_local_sdata); |
| 1582 | Arg *ExternSData = Args.getLastArg(options::OPT_mextern_sdata, |
| 1583 | options::OPT_mno_extern_sdata); |
| 1584 | Arg *EmbeddedData = Args.getLastArg(options::OPT_membedded_data, |
| 1585 | options::OPT_mno_embedded_data); |
| 1586 | if (LocalSData) { |
| 1587 | CmdArgs.push_back("-mllvm"); |
| 1588 | if (LocalSData->getOption().matches(options::OPT_mlocal_sdata)) { |
| 1589 | CmdArgs.push_back("-mlocal-sdata=1"); |
| 1590 | } else { |
| 1591 | CmdArgs.push_back("-mlocal-sdata=0"); |
| 1592 | } |
| 1593 | LocalSData->claim(); |
| 1594 | } |
| 1595 | |
| 1596 | if (ExternSData) { |
| 1597 | CmdArgs.push_back("-mllvm"); |
| 1598 | if (ExternSData->getOption().matches(options::OPT_mextern_sdata)) { |
| 1599 | CmdArgs.push_back("-mextern-sdata=1"); |
| 1600 | } else { |
| 1601 | CmdArgs.push_back("-mextern-sdata=0"); |
| 1602 | } |
| 1603 | ExternSData->claim(); |
| 1604 | } |
| 1605 | |
| 1606 | if (EmbeddedData) { |
| 1607 | CmdArgs.push_back("-mllvm"); |
| 1608 | if (EmbeddedData->getOption().matches(options::OPT_membedded_data)) { |
| 1609 | CmdArgs.push_back("-membedded-data=1"); |
| 1610 | } else { |
| 1611 | CmdArgs.push_back("-membedded-data=0"); |
| 1612 | } |
| 1613 | EmbeddedData->claim(); |
| 1614 | } |
| 1615 | |
| 1616 | } else if ((!ABICalls || (!NoABICalls && ABICalls)) && WantGPOpt) |
| 1617 | D.Diag(diag::warn_drv_unsupported_gpopt) << (ABICalls ? 0 : 1); |
| 1618 | |
| 1619 | if (GPOpt) |
| 1620 | GPOpt->claim(); |
| 1621 | |
| 1622 | if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) { |
| 1623 | StringRef Val = StringRef(A->getValue()); |
| 1624 | if (mips::hasCompactBranches(CPUName)) { |
| 1625 | if (Val == "never" || Val == "always" || Val == "optimal") { |
| 1626 | CmdArgs.push_back("-mllvm"); |
| 1627 | CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val)); |
| 1628 | } else |
| 1629 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 1630 | << A->getOption().getName() << Val; |
| 1631 | } else |
| 1632 | D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName; |
| 1633 | } |
| 1634 | } |
| 1635 | |
| 1636 | void Clang::AddPPCTargetArgs(const ArgList &Args, |
| 1637 | ArgStringList &CmdArgs) const { |
| 1638 | // Select the ABI to use. |
| 1639 | const char *ABIName = nullptr; |
| 1640 | if (getToolChain().getTriple().isOSLinux()) |
| 1641 | switch (getToolChain().getArch()) { |
| 1642 | case llvm::Triple::ppc64: { |
| 1643 | // When targeting a processor that supports QPX, or if QPX is |
| 1644 | // specifically enabled, default to using the ABI that supports QPX (so |
| 1645 | // long as it is not specifically disabled). |
| 1646 | bool HasQPX = false; |
| 1647 | if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) |
| 1648 | HasQPX = A->getValue() == StringRef("a2q"); |
| 1649 | HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX); |
| 1650 | if (HasQPX) { |
| 1651 | ABIName = "elfv1-qpx"; |
| 1652 | break; |
| 1653 | } |
| 1654 | |
| 1655 | ABIName = "elfv1"; |
| 1656 | break; |
| 1657 | } |
| 1658 | case llvm::Triple::ppc64le: |
| 1659 | ABIName = "elfv2"; |
| 1660 | break; |
| 1661 | default: |
| 1662 | break; |
| 1663 | } |
| 1664 | |
| 1665 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
| 1666 | // The ppc64 linux abis are all "altivec" abis by default. Accept and ignore |
| 1667 | // the option if given as we don't have backend support for any targets |
| 1668 | // that don't use the altivec abi. |
| 1669 | if (StringRef(A->getValue()) != "altivec") |
| 1670 | ABIName = A->getValue(); |
| 1671 | |
| 1672 | ppc::FloatABI FloatABI = |
| 1673 | ppc::getPPCFloatABI(getToolChain().getDriver(), Args); |
| 1674 | |
| 1675 | if (FloatABI == ppc::FloatABI::Soft) { |
| 1676 | // Floating point operations and argument passing are soft. |
| 1677 | CmdArgs.push_back("-msoft-float"); |
| 1678 | CmdArgs.push_back("-mfloat-abi"); |
| 1679 | CmdArgs.push_back("soft"); |
| 1680 | } else { |
| 1681 | // Floating point operations and argument passing are hard. |
| 1682 | assert(FloatABI == ppc::FloatABI::Hard && "Invalid float abi!")(static_cast <bool> (FloatABI == ppc::FloatABI::Hard && "Invalid float abi!") ? void (0) : __assert_fail ("FloatABI == ppc::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1682, __extension__ __PRETTY_FUNCTION__)); |
| 1683 | CmdArgs.push_back("-mfloat-abi"); |
| 1684 | CmdArgs.push_back("hard"); |
| 1685 | } |
| 1686 | |
| 1687 | if (ABIName) { |
| 1688 | CmdArgs.push_back("-target-abi"); |
| 1689 | CmdArgs.push_back(ABIName); |
| 1690 | } |
| 1691 | } |
| 1692 | |
| 1693 | void Clang::AddRISCVTargetArgs(const ArgList &Args, |
| 1694 | ArgStringList &CmdArgs) const { |
| 1695 | // FIXME: currently defaults to the soft-float ABIs. Will need to be |
| 1696 | // expanded to select ilp32f, ilp32d, lp64f, lp64d when appropriate. |
| 1697 | const char *ABIName = nullptr; |
| 1698 | const llvm::Triple &Triple = getToolChain().getTriple(); |
| 1699 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
| 1700 | ABIName = A->getValue(); |
| 1701 | else if (Triple.getArch() == llvm::Triple::riscv32) |
| 1702 | ABIName = "ilp32"; |
| 1703 | else if (Triple.getArch() == llvm::Triple::riscv64) |
| 1704 | ABIName = "lp64"; |
| 1705 | else |
| 1706 | llvm_unreachable("Unexpected triple!")::llvm::llvm_unreachable_internal("Unexpected triple!", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1706); |
| 1707 | |
| 1708 | CmdArgs.push_back("-target-abi"); |
| 1709 | CmdArgs.push_back(ABIName); |
| 1710 | } |
| 1711 | |
| 1712 | void Clang::AddSparcTargetArgs(const ArgList &Args, |
| 1713 | ArgStringList &CmdArgs) const { |
| 1714 | sparc::FloatABI FloatABI = |
| 1715 | sparc::getSparcFloatABI(getToolChain().getDriver(), Args); |
| 1716 | |
| 1717 | if (FloatABI == sparc::FloatABI::Soft) { |
| 1718 | // Floating point operations and argument passing are soft. |
| 1719 | CmdArgs.push_back("-msoft-float"); |
| 1720 | CmdArgs.push_back("-mfloat-abi"); |
| 1721 | CmdArgs.push_back("soft"); |
| 1722 | } else { |
| 1723 | // Floating point operations and argument passing are hard. |
| 1724 | assert(FloatABI == sparc::FloatABI::Hard && "Invalid float abi!")(static_cast <bool> (FloatABI == sparc::FloatABI::Hard && "Invalid float abi!") ? void (0) : __assert_fail ("FloatABI == sparc::FloatABI::Hard && \"Invalid float abi!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1724, __extension__ __PRETTY_FUNCTION__)); |
| 1725 | CmdArgs.push_back("-mfloat-abi"); |
| 1726 | CmdArgs.push_back("hard"); |
| 1727 | } |
| 1728 | } |
| 1729 | |
| 1730 | void Clang::AddSystemZTargetArgs(const ArgList &Args, |
| 1731 | ArgStringList &CmdArgs) const { |
| 1732 | if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false)) |
| 1733 | CmdArgs.push_back("-mbackchain"); |
| 1734 | } |
| 1735 | |
| 1736 | void Clang::AddX86TargetArgs(const ArgList &Args, |
| 1737 | ArgStringList &CmdArgs) const { |
| 1738 | if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || |
| 1739 | Args.hasArg(options::OPT_mkernel) || |
| 1740 | Args.hasArg(options::OPT_fapple_kext)) |
| 1741 | CmdArgs.push_back("-disable-red-zone"); |
| 1742 | |
| 1743 | // Default to avoid implicit floating-point for kernel/kext code, but allow |
| 1744 | // that to be overridden with -mno-soft-float. |
| 1745 | bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) || |
| 1746 | Args.hasArg(options::OPT_fapple_kext)); |
| 1747 | if (Arg *A = Args.getLastArg( |
| 1748 | options::OPT_msoft_float, options::OPT_mno_soft_float, |
| 1749 | options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) { |
| 1750 | const Option &O = A->getOption(); |
| 1751 | NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) || |
| 1752 | O.matches(options::OPT_msoft_float)); |
| 1753 | } |
| 1754 | if (NoImplicitFloat) |
| 1755 | CmdArgs.push_back("-no-implicit-float"); |
| 1756 | |
| 1757 | if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { |
| 1758 | StringRef Value = A->getValue(); |
| 1759 | if (Value == "intel" || Value == "att") { |
| 1760 | CmdArgs.push_back("-mllvm"); |
| 1761 | CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); |
| 1762 | } else { |
| 1763 | getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) |
| 1764 | << A->getOption().getName() << Value; |
| 1765 | } |
| 1766 | } else if (getToolChain().getDriver().IsCLMode()) { |
| 1767 | CmdArgs.push_back("-mllvm"); |
| 1768 | CmdArgs.push_back("-x86-asm-syntax=intel"); |
| 1769 | } |
| 1770 | |
| 1771 | // Set flags to support MCU ABI. |
| 1772 | if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) { |
| 1773 | CmdArgs.push_back("-mfloat-abi"); |
| 1774 | CmdArgs.push_back("soft"); |
| 1775 | CmdArgs.push_back("-mstack-alignment=4"); |
| 1776 | } |
| 1777 | } |
| 1778 | |
| 1779 | void Clang::AddHexagonTargetArgs(const ArgList &Args, |
| 1780 | ArgStringList &CmdArgs) const { |
| 1781 | CmdArgs.push_back("-mqdsp6-compat"); |
| 1782 | CmdArgs.push_back("-Wreturn-type"); |
| 1783 | |
| 1784 | if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { |
| 1785 | CmdArgs.push_back("-mllvm"); |
| 1786 | CmdArgs.push_back(Args.MakeArgString("-hexagon-small-data-threshold=" + |
| 1787 | Twine(G.getValue()))); |
| 1788 | } |
| 1789 | |
| 1790 | if (!Args.hasArg(options::OPT_fno_short_enums)) |
| 1791 | CmdArgs.push_back("-fshort-enums"); |
| 1792 | if (Args.getLastArg(options::OPT_mieee_rnd_near)) { |
| 1793 | CmdArgs.push_back("-mllvm"); |
| 1794 | CmdArgs.push_back("-enable-hexagon-ieee-rnd-near"); |
| 1795 | } |
| 1796 | CmdArgs.push_back("-mllvm"); |
| 1797 | CmdArgs.push_back("-machine-sink-split=0"); |
| 1798 | } |
| 1799 | |
| 1800 | void Clang::AddLanaiTargetArgs(const ArgList &Args, |
| 1801 | ArgStringList &CmdArgs) const { |
| 1802 | if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { |
| 1803 | StringRef CPUName = A->getValue(); |
| 1804 | |
| 1805 | CmdArgs.push_back("-target-cpu"); |
| 1806 | CmdArgs.push_back(Args.MakeArgString(CPUName)); |
| 1807 | } |
| 1808 | if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { |
| 1809 | StringRef Value = A->getValue(); |
| 1810 | // Only support mregparm=4 to support old usage. Report error for all other |
| 1811 | // cases. |
| 1812 | int Mregparm; |
| 1813 | if (Value.getAsInteger(10, Mregparm)) { |
| 1814 | if (Mregparm != 4) { |
| 1815 | getToolChain().getDriver().Diag( |
| 1816 | diag::err_drv_unsupported_option_argument) |
| 1817 | << A->getOption().getName() << Value; |
| 1818 | } |
| 1819 | } |
| 1820 | } |
| 1821 | } |
| 1822 | |
| 1823 | void Clang::AddWebAssemblyTargetArgs(const ArgList &Args, |
| 1824 | ArgStringList &CmdArgs) const { |
| 1825 | // Default to "hidden" visibility. |
| 1826 | if (!Args.hasArg(options::OPT_fvisibility_EQ, |
| 1827 | options::OPT_fvisibility_ms_compat)) { |
| 1828 | CmdArgs.push_back("-fvisibility"); |
| 1829 | CmdArgs.push_back("hidden"); |
| 1830 | } |
| 1831 | } |
| 1832 | |
| 1833 | void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename, |
| 1834 | StringRef Target, const InputInfo &Output, |
| 1835 | const InputInfo &Input, const ArgList &Args) const { |
| 1836 | // If this is a dry run, do not create the compilation database file. |
| 1837 | if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) |
| 1838 | return; |
| 1839 | |
| 1840 | using llvm::yaml::escape; |
| 1841 | const Driver &D = getToolChain().getDriver(); |
| 1842 | |
| 1843 | if (!CompilationDatabase) { |
| 1844 | std::error_code EC; |
| 1845 | auto File = llvm::make_unique<llvm::raw_fd_ostream>(Filename, EC, llvm::sys::fs::F_Text); |
| 1846 | if (EC) { |
| 1847 | D.Diag(clang::diag::err_drv_compilationdatabase) << Filename |
| 1848 | << EC.message(); |
| 1849 | return; |
| 1850 | } |
| 1851 | CompilationDatabase = std::move(File); |
| 1852 | } |
| 1853 | auto &CDB = *CompilationDatabase; |
| 1854 | SmallString<128> Buf; |
| 1855 | if (llvm::sys::fs::current_path(Buf)) |
| 1856 | Buf = "."; |
| 1857 | CDB << "{ \"directory\": \"" << escape(Buf) << "\""; |
| 1858 | CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\""; |
| 1859 | CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\""; |
| 1860 | CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\""; |
| 1861 | Buf = "-x"; |
| 1862 | Buf += types::getTypeName(Input.getType()); |
| 1863 | CDB << ", \"" << escape(Buf) << "\""; |
| 1864 | if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) { |
| 1865 | Buf = "--sysroot="; |
| 1866 | Buf += D.SysRoot; |
| 1867 | CDB << ", \"" << escape(Buf) << "\""; |
| 1868 | } |
| 1869 | CDB << ", \"" << escape(Input.getFilename()) << "\""; |
| 1870 | for (auto &A: Args) { |
| 1871 | auto &O = A->getOption(); |
| 1872 | // Skip language selection, which is positional. |
| 1873 | if (O.getID() == options::OPT_x) |
| 1874 | continue; |
| 1875 | // Skip writing dependency output and the compilation database itself. |
| 1876 | if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group) |
| 1877 | continue; |
| 1878 | // Skip inputs. |
| 1879 | if (O.getKind() == Option::InputClass) |
| 1880 | continue; |
| 1881 | // All other arguments are quoted and appended. |
| 1882 | ArgStringList ASL; |
| 1883 | A->render(Args, ASL); |
| 1884 | for (auto &it: ASL) |
| 1885 | CDB << ", \"" << escape(it) << "\""; |
| 1886 | } |
| 1887 | Buf = "--target="; |
| 1888 | Buf += Target; |
| 1889 | CDB << ", \"" << escape(Buf) << "\"]},\n"; |
| 1890 | } |
| 1891 | |
| 1892 | static void CollectArgsForIntegratedAssembler(Compilation &C, |
| 1893 | const ArgList &Args, |
| 1894 | ArgStringList &CmdArgs, |
| 1895 | const Driver &D) { |
| 1896 | if (UseRelaxAll(C, Args)) |
| 1897 | CmdArgs.push_back("-mrelax-all"); |
| 1898 | |
| 1899 | // Only default to -mincremental-linker-compatible if we think we are |
| 1900 | // targeting the MSVC linker. |
| 1901 | bool DefaultIncrementalLinkerCompatible = |
| 1902 | C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment(); |
| 1903 | if (Args.hasFlag(options::OPT_mincremental_linker_compatible, |
| 1904 | options::OPT_mno_incremental_linker_compatible, |
| 1905 | DefaultIncrementalLinkerCompatible)) |
| 1906 | CmdArgs.push_back("-mincremental-linker-compatible"); |
| 1907 | |
| 1908 | switch (C.getDefaultToolChain().getArch()) { |
| 1909 | case llvm::Triple::arm: |
| 1910 | case llvm::Triple::armeb: |
| 1911 | case llvm::Triple::thumb: |
| 1912 | case llvm::Triple::thumbeb: |
| 1913 | if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) { |
| 1914 | StringRef Value = A->getValue(); |
| 1915 | if (Value == "always" || Value == "never" || Value == "arm" || |
| 1916 | Value == "thumb") { |
| 1917 | CmdArgs.push_back("-mllvm"); |
| 1918 | CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value)); |
| 1919 | } else { |
| 1920 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 1921 | << A->getOption().getName() << Value; |
| 1922 | } |
| 1923 | } |
| 1924 | break; |
| 1925 | default: |
| 1926 | break; |
| 1927 | } |
| 1928 | |
| 1929 | // When passing -I arguments to the assembler we sometimes need to |
| 1930 | // unconditionally take the next argument. For example, when parsing |
| 1931 | // '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the |
| 1932 | // -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo' |
| 1933 | // arg after parsing the '-I' arg. |
| 1934 | bool TakeNextArg = false; |
| 1935 | |
| 1936 | bool UseRelaxRelocations = C.getDefaultToolChain().useRelaxRelocations(); |
| 1937 | const char *MipsTargetFeature = nullptr; |
| 1938 | for (const Arg *A : |
| 1939 | Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { |
| 1940 | A->claim(); |
| 1941 | |
| 1942 | for (StringRef Value : A->getValues()) { |
| 1943 | if (TakeNextArg) { |
| 1944 | CmdArgs.push_back(Value.data()); |
| 1945 | TakeNextArg = false; |
| 1946 | continue; |
| 1947 | } |
| 1948 | |
| 1949 | if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() && |
| 1950 | Value == "-mbig-obj") |
| 1951 | continue; // LLVM handles bigobj automatically |
| 1952 | |
| 1953 | switch (C.getDefaultToolChain().getArch()) { |
| 1954 | default: |
| 1955 | break; |
| 1956 | case llvm::Triple::thumb: |
| 1957 | case llvm::Triple::thumbeb: |
| 1958 | case llvm::Triple::arm: |
| 1959 | case llvm::Triple::armeb: |
| 1960 | if (Value == "-mthumb") |
| 1961 | // -mthumb has already been processed in ComputeLLVMTriple() |
| 1962 | // recognize but skip over here. |
| 1963 | continue; |
| 1964 | break; |
| 1965 | case llvm::Triple::mips: |
| 1966 | case llvm::Triple::mipsel: |
| 1967 | case llvm::Triple::mips64: |
| 1968 | case llvm::Triple::mips64el: |
| 1969 | if (Value == "--trap") { |
| 1970 | CmdArgs.push_back("-target-feature"); |
| 1971 | CmdArgs.push_back("+use-tcc-in-div"); |
| 1972 | continue; |
| 1973 | } |
| 1974 | if (Value == "--break") { |
| 1975 | CmdArgs.push_back("-target-feature"); |
| 1976 | CmdArgs.push_back("-use-tcc-in-div"); |
| 1977 | continue; |
| 1978 | } |
| 1979 | if (Value.startswith("-msoft-float")) { |
| 1980 | CmdArgs.push_back("-target-feature"); |
| 1981 | CmdArgs.push_back("+soft-float"); |
| 1982 | continue; |
| 1983 | } |
| 1984 | if (Value.startswith("-mhard-float")) { |
| 1985 | CmdArgs.push_back("-target-feature"); |
| 1986 | CmdArgs.push_back("-soft-float"); |
| 1987 | continue; |
| 1988 | } |
| 1989 | |
| 1990 | MipsTargetFeature = llvm::StringSwitch<const char *>(Value) |
| 1991 | .Case("-mips1", "+mips1") |
| 1992 | .Case("-mips2", "+mips2") |
| 1993 | .Case("-mips3", "+mips3") |
| 1994 | .Case("-mips4", "+mips4") |
| 1995 | .Case("-mips5", "+mips5") |
| 1996 | .Case("-mips32", "+mips32") |
| 1997 | .Case("-mips32r2", "+mips32r2") |
| 1998 | .Case("-mips32r3", "+mips32r3") |
| 1999 | .Case("-mips32r5", "+mips32r5") |
| 2000 | .Case("-mips32r6", "+mips32r6") |
| 2001 | .Case("-mips64", "+mips64") |
| 2002 | .Case("-mips64r2", "+mips64r2") |
| 2003 | .Case("-mips64r3", "+mips64r3") |
| 2004 | .Case("-mips64r5", "+mips64r5") |
| 2005 | .Case("-mips64r6", "+mips64r6") |
| 2006 | .Default(nullptr); |
| 2007 | if (MipsTargetFeature) |
| 2008 | continue; |
| 2009 | } |
| 2010 | |
| 2011 | if (Value == "-force_cpusubtype_ALL") { |
| 2012 | // Do nothing, this is the default and we don't support anything else. |
| 2013 | } else if (Value == "-L") { |
| 2014 | CmdArgs.push_back("-msave-temp-labels"); |
| 2015 | } else if (Value == "--fatal-warnings") { |
| 2016 | CmdArgs.push_back("-massembler-fatal-warnings"); |
| 2017 | } else if (Value == "--noexecstack") { |
| 2018 | CmdArgs.push_back("-mnoexecstack"); |
| 2019 | } else if (Value.startswith("-compress-debug-sections") || |
| 2020 | Value.startswith("--compress-debug-sections") || |
| 2021 | Value == "-nocompress-debug-sections" || |
| 2022 | Value == "--nocompress-debug-sections") { |
| 2023 | CmdArgs.push_back(Value.data()); |
| 2024 | } else if (Value == "-mrelax-relocations=yes" || |
| 2025 | Value == "--mrelax-relocations=yes") { |
| 2026 | UseRelaxRelocations = true; |
| 2027 | } else if (Value == "-mrelax-relocations=no" || |
| 2028 | Value == "--mrelax-relocations=no") { |
| 2029 | UseRelaxRelocations = false; |
| 2030 | } else if (Value.startswith("-I")) { |
| 2031 | CmdArgs.push_back(Value.data()); |
| 2032 | // We need to consume the next argument if the current arg is a plain |
| 2033 | // -I. The next arg will be the include directory. |
| 2034 | if (Value == "-I") |
| 2035 | TakeNextArg = true; |
| 2036 | } else if (Value.startswith("-gdwarf-")) { |
| 2037 | // "-gdwarf-N" options are not cc1as options. |
| 2038 | unsigned DwarfVersion = DwarfVersionNum(Value); |
| 2039 | if (DwarfVersion == 0) { // Send it onward, and let cc1as complain. |
| 2040 | CmdArgs.push_back(Value.data()); |
| 2041 | } else { |
| 2042 | RenderDebugEnablingArgs(Args, CmdArgs, |
| 2043 | codegenoptions::LimitedDebugInfo, |
| 2044 | DwarfVersion, llvm::DebuggerKind::Default); |
| 2045 | } |
| 2046 | } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") || |
| 2047 | Value.startswith("-mhwdiv") || Value.startswith("-march")) { |
| 2048 | // Do nothing, we'll validate it later. |
| 2049 | } else if (Value == "-defsym") { |
| 2050 | if (A->getNumValues() != 2) { |
| 2051 | D.Diag(diag::err_drv_defsym_invalid_format) << Value; |
| 2052 | break; |
| 2053 | } |
| 2054 | const char *S = A->getValue(1); |
| 2055 | auto Pair = StringRef(S).split('='); |
| 2056 | auto Sym = Pair.first; |
| 2057 | auto SVal = Pair.second; |
| 2058 | |
| 2059 | if (Sym.empty() || SVal.empty()) { |
| 2060 | D.Diag(diag::err_drv_defsym_invalid_format) << S; |
| 2061 | break; |
| 2062 | } |
| 2063 | int64_t IVal; |
| 2064 | if (SVal.getAsInteger(0, IVal)) { |
| 2065 | D.Diag(diag::err_drv_defsym_invalid_symval) << SVal; |
| 2066 | break; |
| 2067 | } |
| 2068 | CmdArgs.push_back(Value.data()); |
| 2069 | TakeNextArg = true; |
| 2070 | } else { |
| 2071 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 2072 | << A->getOption().getName() << Value; |
| 2073 | } |
| 2074 | } |
| 2075 | } |
| 2076 | if (UseRelaxRelocations) |
| 2077 | CmdArgs.push_back("--mrelax-relocations"); |
| 2078 | if (MipsTargetFeature != nullptr) { |
| 2079 | CmdArgs.push_back("-target-feature"); |
| 2080 | CmdArgs.push_back(MipsTargetFeature); |
| 2081 | } |
| 2082 | } |
| 2083 | |
| 2084 | static void RenderFloatingPointOptions(const ToolChain &TC, const Driver &D, |
| 2085 | bool OFastEnabled, const ArgList &Args, |
| 2086 | ArgStringList &CmdArgs) { |
| 2087 | // Handle various floating point optimization flags, mapping them to the |
| 2088 | // appropriate LLVM code generation flags. This is complicated by several |
| 2089 | // "umbrella" flags, so we do this by stepping through the flags incrementally |
| 2090 | // adjusting what we think is enabled/disabled, then at the end setting the |
| 2091 | // LLVM flags based on the final state. |
| 2092 | bool HonorINFs = true; |
| 2093 | bool HonorNaNs = true; |
| 2094 | // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes. |
| 2095 | bool MathErrno = TC.IsMathErrnoDefault(); |
| 2096 | bool AssociativeMath = false; |
| 2097 | bool ReciprocalMath = false; |
| 2098 | bool SignedZeros = true; |
| 2099 | bool TrappingMath = true; |
| 2100 | StringRef DenormalFPMath = ""; |
| 2101 | StringRef FPContract = ""; |
| 2102 | |
| 2103 | for (const Arg *A : Args) { |
| 2104 | switch (A->getOption().getID()) { |
| 2105 | // If this isn't an FP option skip the claim below |
| 2106 | default: continue; |
| 2107 | |
| 2108 | // Options controlling individual features |
| 2109 | case options::OPT_fhonor_infinities: HonorINFs = true; break; |
| 2110 | case options::OPT_fno_honor_infinities: HonorINFs = false; break; |
| 2111 | case options::OPT_fhonor_nans: HonorNaNs = true; break; |
| 2112 | case options::OPT_fno_honor_nans: HonorNaNs = false; break; |
| 2113 | case options::OPT_fmath_errno: MathErrno = true; break; |
| 2114 | case options::OPT_fno_math_errno: MathErrno = false; break; |
| 2115 | case options::OPT_fassociative_math: AssociativeMath = true; break; |
| 2116 | case options::OPT_fno_associative_math: AssociativeMath = false; break; |
| 2117 | case options::OPT_freciprocal_math: ReciprocalMath = true; break; |
| 2118 | case options::OPT_fno_reciprocal_math: ReciprocalMath = false; break; |
| 2119 | case options::OPT_fsigned_zeros: SignedZeros = true; break; |
| 2120 | case options::OPT_fno_signed_zeros: SignedZeros = false; break; |
| 2121 | case options::OPT_ftrapping_math: TrappingMath = true; break; |
| 2122 | case options::OPT_fno_trapping_math: TrappingMath = false; break; |
| 2123 | |
| 2124 | case options::OPT_fdenormal_fp_math_EQ: |
| 2125 | DenormalFPMath = A->getValue(); |
| 2126 | break; |
| 2127 | |
| 2128 | // Validate and pass through -fp-contract option. |
| 2129 | case options::OPT_ffp_contract: { |
| 2130 | StringRef Val = A->getValue(); |
| 2131 | if (Val == "fast" || Val == "on" || Val == "off") |
| 2132 | FPContract = Val; |
| 2133 | else |
| 2134 | D.Diag(diag::err_drv_unsupported_option_argument) |
| 2135 | << A->getOption().getName() << Val; |
| 2136 | break; |
| 2137 | } |
| 2138 | |
| 2139 | case options::OPT_ffinite_math_only: |
| 2140 | HonorINFs = false; |
| 2141 | HonorNaNs = false; |
| 2142 | break; |
| 2143 | case options::OPT_fno_finite_math_only: |
| 2144 | HonorINFs = true; |
| 2145 | HonorNaNs = true; |
| 2146 | break; |
| 2147 | |
| 2148 | case options::OPT_funsafe_math_optimizations: |
| 2149 | AssociativeMath = true; |
| 2150 | ReciprocalMath = true; |
| 2151 | SignedZeros = false; |
| 2152 | TrappingMath = false; |
| 2153 | break; |
| 2154 | case options::OPT_fno_unsafe_math_optimizations: |
| 2155 | AssociativeMath = false; |
| 2156 | ReciprocalMath = false; |
| 2157 | SignedZeros = true; |
| 2158 | TrappingMath = true; |
| 2159 | // -fno_unsafe_math_optimizations restores default denormal handling |
| 2160 | DenormalFPMath = ""; |
| 2161 | break; |
| 2162 | |
| 2163 | case options::OPT_Ofast: |
| 2164 | // If -Ofast is the optimization level, then -ffast-math should be enabled |
| 2165 | if (!OFastEnabled) |
| 2166 | continue; |
| 2167 | LLVM_FALLTHROUGH[[clang::fallthrough]]; |
| 2168 | case options::OPT_ffast_math: |
| 2169 | HonorINFs = false; |
| 2170 | HonorNaNs = false; |
| 2171 | MathErrno = false; |
| 2172 | AssociativeMath = true; |
| 2173 | ReciprocalMath = true; |
| 2174 | SignedZeros = false; |
| 2175 | TrappingMath = false; |
| 2176 | // If fast-math is set then set the fp-contract mode to fast. |
| 2177 | FPContract = "fast"; |
| 2178 | break; |
| 2179 | case options::OPT_fno_fast_math: |
| 2180 | HonorINFs = true; |
| 2181 | HonorNaNs = true; |
| 2182 | // Turning on -ffast-math (with either flag) removes the need for |
| 2183 | // MathErrno. However, turning *off* -ffast-math merely restores the |
| 2184 | // toolchain default (which may be false). |
| 2185 | MathErrno = TC.IsMathErrnoDefault(); |
| 2186 | AssociativeMath = false; |
| 2187 | ReciprocalMath = false; |
| 2188 | SignedZeros = true; |
| 2189 | TrappingMath = true; |
| 2190 | // -fno_fast_math restores default denormal and fpcontract handling |
| 2191 | DenormalFPMath = ""; |
| 2192 | FPContract = ""; |
| 2193 | break; |
| 2194 | } |
| 2195 | |
| 2196 | // If we handled this option claim it |
| 2197 | A->claim(); |
| 2198 | } |
| 2199 | |
| 2200 | if (!HonorINFs) |
| 2201 | CmdArgs.push_back("-menable-no-infs"); |
| 2202 | |
| 2203 | if (!HonorNaNs) |
| 2204 | CmdArgs.push_back("-menable-no-nans"); |
| 2205 | |
| 2206 | if (MathErrno) |
| 2207 | CmdArgs.push_back("-fmath-errno"); |
| 2208 | |
| 2209 | if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros && |
| 2210 | !TrappingMath) |
| 2211 | CmdArgs.push_back("-menable-unsafe-fp-math"); |
| 2212 | |
| 2213 | if (!SignedZeros) |
| 2214 | CmdArgs.push_back("-fno-signed-zeros"); |
| 2215 | |
| 2216 | if (AssociativeMath && !SignedZeros && !TrappingMath) |
| 2217 | CmdArgs.push_back("-mreassociate"); |
| 2218 | |
| 2219 | if (ReciprocalMath) |
| 2220 | CmdArgs.push_back("-freciprocal-math"); |
| 2221 | |
| 2222 | if (!TrappingMath) |
| 2223 | CmdArgs.push_back("-fno-trapping-math"); |
| 2224 | |
| 2225 | if (!DenormalFPMath.empty()) |
| 2226 | CmdArgs.push_back( |
| 2227 | Args.MakeArgString("-fdenormal-fp-math=" + DenormalFPMath)); |
| 2228 | |
| 2229 | if (!FPContract.empty()) |
| 2230 | CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + FPContract)); |
| 2231 | |
| 2232 | ParseMRecip(D, Args, CmdArgs); |
| 2233 | |
| 2234 | // -ffast-math enables the __FAST_MATH__ preprocessor macro, but check for the |
| 2235 | // individual features enabled by -ffast-math instead of the option itself as |
| 2236 | // that's consistent with gcc's behaviour. |
| 2237 | if (!HonorINFs && !HonorNaNs && !MathErrno && AssociativeMath && |
| 2238 | ReciprocalMath && !SignedZeros && !TrappingMath) |
| 2239 | CmdArgs.push_back("-ffast-math"); |
| 2240 | |
| 2241 | // Handle __FINITE_MATH_ONLY__ similarly. |
| 2242 | if (!HonorINFs && !HonorNaNs) |
| 2243 | CmdArgs.push_back("-ffinite-math-only"); |
| 2244 | |
| 2245 | if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) { |
| 2246 | CmdArgs.push_back("-mfpmath"); |
| 2247 | CmdArgs.push_back(A->getValue()); |
| 2248 | } |
| 2249 | } |
| 2250 | |
| 2251 | static void RenderAnalyzerOptions(const ArgList &Args, ArgStringList &CmdArgs, |
| 2252 | const llvm::Triple &Triple, |
| 2253 | const InputInfo &Input) { |
| 2254 | // Enable region store model by default. |
| 2255 | CmdArgs.push_back("-analyzer-store=region"); |
| 2256 | |
| 2257 | // Treat blocks as analysis entry points. |
| 2258 | CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks"); |
| 2259 | |
| 2260 | CmdArgs.push_back("-analyzer-eagerly-assume"); |
| 2261 | |
| 2262 | // Add default argument set. |
| 2263 | if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) { |
| 2264 | CmdArgs.push_back("-analyzer-checker=core"); |
| 2265 | CmdArgs.push_back("-analyzer-checker=apiModeling"); |
| 2266 | |
| 2267 | if (!Triple.isWindowsMSVCEnvironment()) { |
| 2268 | CmdArgs.push_back("-analyzer-checker=unix"); |
| 2269 | } else { |
| 2270 | // Enable "unix" checkers that also work on Windows. |
| 2271 | CmdArgs.push_back("-analyzer-checker=unix.API"); |
| 2272 | CmdArgs.push_back("-analyzer-checker=unix.Malloc"); |
| 2273 | CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof"); |
| 2274 | CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator"); |
| 2275 | CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg"); |
| 2276 | CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg"); |
| 2277 | } |
| 2278 | |
| 2279 | // Disable some unix checkers for PS4. |
| 2280 | if (Triple.isPS4CPU()) { |
| 2281 | CmdArgs.push_back("-analyzer-disable-checker=unix.API"); |
| 2282 | CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork"); |
| 2283 | } |
| 2284 | |
| 2285 | if (Triple.isOSDarwin()) |
| 2286 | CmdArgs.push_back("-analyzer-checker=osx"); |
| 2287 | |
| 2288 | CmdArgs.push_back("-analyzer-checker=deadcode"); |
| 2289 | |
| 2290 | if (types::isCXX(Input.getType())) |
| 2291 | CmdArgs.push_back("-analyzer-checker=cplusplus"); |
| 2292 | |
| 2293 | if (!Triple.isPS4CPU()) { |
| 2294 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.UncheckedReturn"); |
| 2295 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw"); |
| 2296 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets"); |
| 2297 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp"); |
| 2298 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp"); |
| 2299 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork"); |
| 2300 | } |
| 2301 | |
| 2302 | // Default nullability checks. |
| 2303 | CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull"); |
| 2304 | CmdArgs.push_back("-analyzer-checker=nullability.NullReturnedFromNonnull"); |
| 2305 | } |
| 2306 | |
| 2307 | // Set the output format. The default is plist, for (lame) historical reasons. |
| 2308 | CmdArgs.push_back("-analyzer-output"); |
| 2309 | if (Arg *A = Args.getLastArg(options::OPT__analyzer_output)) |
| 2310 | CmdArgs.push_back(A->getValue()); |
| 2311 | else |
| 2312 | CmdArgs.push_back("plist"); |
| 2313 | |
| 2314 | // Disable the presentation of standard compiler warnings when using |
| 2315 | // --analyze. We only want to show static analyzer diagnostics or frontend |
| 2316 | // errors. |
| 2317 | CmdArgs.push_back("-w"); |
| 2318 | |
| 2319 | // Add -Xanalyzer arguments when running as analyzer. |
| 2320 | Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer); |
| 2321 | } |
| 2322 | |
| 2323 | static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args, |
| 2324 | ArgStringList &CmdArgs, bool KernelOrKext) { |
| 2325 | const llvm::Triple &EffectiveTriple = TC.getEffectiveTriple(); |
| 2326 | |
| 2327 | // NVPTX doesn't support stack protectors; from the compiler's perspective, it |
| 2328 | // doesn't even have a stack! |
| 2329 | if (EffectiveTriple.isNVPTX()) |
| 2330 | return; |
| 2331 | |
| 2332 | // -stack-protector=0 is default. |
| 2333 | unsigned StackProtectorLevel = 0; |
| 2334 | unsigned DefaultStackProtectorLevel = |
| 2335 | TC.GetDefaultStackProtectorLevel(KernelOrKext); |
| 2336 | |
| 2337 | if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector, |
| 2338 | options::OPT_fstack_protector_all, |
| 2339 | options::OPT_fstack_protector_strong, |
| 2340 | options::OPT_fstack_protector)) { |
| 2341 | if (A->getOption().matches(options::OPT_fstack_protector)) |
| 2342 | StackProtectorLevel = |
| 2343 | std::max<unsigned>(LangOptions::SSPOn, DefaultStackProtectorLevel); |
| 2344 | else if (A->getOption().matches(options::OPT_fstack_protector_strong)) |
| 2345 | StackProtectorLevel = LangOptions::SSPStrong; |
| 2346 | else if (A->getOption().matches(options::OPT_fstack_protector_all)) |
| 2347 | StackProtectorLevel = LangOptions::SSPReq; |
| 2348 | } else { |
| 2349 | StackProtectorLevel = DefaultStackProtectorLevel; |
| 2350 | } |
| 2351 | |
| 2352 | if (StackProtectorLevel) { |
| 2353 | CmdArgs.push_back("-stack-protector"); |
| 2354 | CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel))); |
| 2355 | } |
| 2356 | |
| 2357 | // --param ssp-buffer-size= |
| 2358 | for (const Arg *A : Args.filtered(options::OPT__param)) { |
| 2359 | StringRef Str(A->getValue()); |
| 2360 | if (Str.startswith("ssp-buffer-size=")) { |
| 2361 | if (StackProtectorLevel) { |
| 2362 | CmdArgs.push_back("-stack-protector-buffer-size"); |
| 2363 | // FIXME: Verify the argument is a valid integer. |
| 2364 | CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16))); |
| 2365 | } |
| 2366 | A->claim(); |
| 2367 | } |
| 2368 | } |
| 2369 | } |
| 2370 | |
| 2371 | static void RenderOpenCLOptions(const ArgList &Args, ArgStringList &CmdArgs) { |
| 2372 | const unsigned ForwardedArguments[] = { |
| 2373 | options::OPT_cl_opt_disable, |
| 2374 | options::OPT_cl_strict_aliasing, |
| 2375 | options::OPT_cl_single_precision_constant, |
| 2376 | options::OPT_cl_finite_math_only, |
| 2377 | options::OPT_cl_kernel_arg_info, |
| 2378 | options::OPT_cl_unsafe_math_optimizations, |
| 2379 | options::OPT_cl_fast_relaxed_math, |
| 2380 | options::OPT_cl_mad_enable, |
| 2381 | options::OPT_cl_no_signed_zeros, |
| 2382 | options::OPT_cl_denorms_are_zero, |
| 2383 | options::OPT_cl_fp32_correctly_rounded_divide_sqrt, |
| 2384 | options::OPT_cl_uniform_work_group_size |
| 2385 | }; |
| 2386 | |
| 2387 | if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) { |
| 2388 | std::string CLStdStr = std::string("-cl-std=") + A->getValue(); |
| 2389 | CmdArgs.push_back(Args.MakeArgString(CLStdStr)); |
| 2390 | } |
| 2391 | |
| 2392 | for (const auto &Arg : ForwardedArguments) |
| 2393 | if (const auto *A = Args.getLastArg(Arg)) |
| 2394 | CmdArgs.push_back(Args.MakeArgString(A->getOption().getPrefixedName())); |
| 2395 | } |
| 2396 | |
| 2397 | static void RenderARCMigrateToolOptions(const Driver &D, const ArgList &Args, |
| 2398 | ArgStringList &CmdArgs) { |
| 2399 | bool ARCMTEnabled = false; |
| 2400 | if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) { |
| 2401 | if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check, |
| 2402 | options::OPT_ccc_arcmt_modify, |
| 2403 | options::OPT_ccc_arcmt_migrate)) { |
| 2404 | ARCMTEnabled = true; |
| 2405 | switch (A->getOption().getID()) { |
| 2406 | default: llvm_unreachable("missed a case")::llvm::llvm_unreachable_internal("missed a case", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 2406); |
| 2407 | case options::OPT_ccc_arcmt_check: |
| 2408 | CmdArgs.push_back("-arcmt-check"); |
| 2409 | break; |
| 2410 | case options::OPT_ccc_arcmt_modify: |
| 2411 | CmdArgs.push_back("-arcmt-modify"); |
| 2412 | break; |
| 2413 | case options::OPT_ccc_arcmt_migrate: |
| 2414 | CmdArgs.push_back("-arcmt-migrate"); |
| 2415 | CmdArgs.push_back("-mt-migrate-directory"); |
| 2416 | CmdArgs.push_back(A->getValue()); |
| 2417 | |
| 2418 | Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output); |
| 2419 | Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors); |
| 2420 | break; |
| 2421 | } |
| 2422 | } |
| 2423 | } else { |
| 2424 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_check); |
| 2425 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify); |
| 2426 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate); |
| 2427 | } |
| 2428 | |
| 2429 | if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) { |
| 2430 | if (ARCMTEnabled) |
| 2431 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 2432 | << A->getAsString(Args) << "-ccc-arcmt-migrate"; |
| 2433 | |
| 2434 | CmdArgs.push_back("-mt-migrate-directory"); |
| 2435 | CmdArgs.push_back(A->getValue()); |
| 2436 | |
| 2437 | if (!Args.hasArg(options::OPT_objcmt_migrate_literals, |
| 2438 | options::OPT_objcmt_migrate_subscripting, |
| 2439 | options::OPT_objcmt_migrate_property)) { |
| 2440 | // None specified, means enable them all. |
| 2441 | CmdArgs.push_back("-objcmt-migrate-literals"); |
| 2442 | CmdArgs.push_back("-objcmt-migrate-subscripting"); |
| 2443 | CmdArgs.push_back("-objcmt-migrate-property"); |
| 2444 | } else { |
| 2445 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); |
| 2446 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); |
| 2447 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); |
| 2448 | } |
| 2449 | } else { |
| 2450 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); |
| 2451 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); |
| 2452 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); |
| 2453 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all); |
| 2454 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property); |
| 2455 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property); |
| 2456 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax); |
| 2457 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation); |
| 2458 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype); |
| 2459 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros); |
| 2460 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance); |
| 2461 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property); |
| 2462 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property); |
| 2463 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly); |
| 2464 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init); |
| 2465 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path); |
| 2466 | } |
| 2467 | } |
| 2468 | |
| 2469 | static void RenderBuiltinOptions(const ToolChain &TC, const llvm::Triple &T, |
| 2470 | const ArgList &Args, ArgStringList &CmdArgs) { |
| 2471 | // -fbuiltin is default unless -mkernel is used. |
| 2472 | bool UseBuiltins = |
| 2473 | Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin, |
| 2474 | !Args.hasArg(options::OPT_mkernel)); |
| 2475 | if (!UseBuiltins) |
| 2476 | CmdArgs.push_back("-fno-builtin"); |
| 2477 | |
| 2478 | // -ffreestanding implies -fno-builtin. |
| 2479 | if (Args.hasArg(options::OPT_ffreestanding)) |
| 2480 | UseBuiltins = false; |
| 2481 | |
| 2482 | // Process the -fno-builtin-* options. |
| 2483 | for (const auto &Arg : Args) { |
| 2484 | const Option &O = Arg->getOption(); |
| 2485 | if (!O.matches(options::OPT_fno_builtin_)) |
| 2486 | continue; |
| 2487 | |
| 2488 | Arg->claim(); |
| 2489 | |
| 2490 | // If -fno-builtin is specified, then there's no need to pass the option to |
| 2491 | // the frontend. |
| 2492 | if (!UseBuiltins) |
| 2493 | continue; |
| 2494 | |
| 2495 | StringRef FuncName = Arg->getValue(); |
| 2496 | CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName)); |
| 2497 | } |
| 2498 | |
| 2499 | // le32-specific flags: |
| 2500 | // -fno-math-builtin: clang should not convert math builtins to intrinsics |
| 2501 | // by default. |
| 2502 | if (TC.getArch() == llvm::Triple::le32) |
| 2503 | CmdArgs.push_back("-fno-math-builtin"); |
| 2504 | } |
| 2505 | |
| 2506 | void Driver::getDefaultModuleCachePath(SmallVectorImpl<char> &Result) { |
| 2507 | llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false, Result); |
| 2508 | llvm::sys::path::append(Result, "org.llvm.clang."); |
| 2509 | appendUserToPath(Result); |
| 2510 | llvm::sys::path::append(Result, "ModuleCache"); |
| 2511 | } |
| 2512 | |
| 2513 | static void RenderModulesOptions(Compilation &C, const Driver &D, |
| 2514 | const ArgList &Args, const InputInfo &Input, |
| 2515 | const InputInfo &Output, |
| 2516 | ArgStringList &CmdArgs, bool &HaveModules) { |
| 2517 | // -fmodules enables the use of precompiled modules (off by default). |
| 2518 | // Users can pass -fno-cxx-modules to turn off modules support for |
| 2519 | // C++/Objective-C++ programs. |
| 2520 | bool HaveClangModules = false; |
| 2521 | if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) { |
| 2522 | bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules, |
| 2523 | options::OPT_fno_cxx_modules, true); |
| 2524 | if (AllowedInCXX || !types::isCXX(Input.getType())) { |
| 2525 | CmdArgs.push_back("-fmodules"); |
| 2526 | HaveClangModules = true; |
| 2527 | } |
| 2528 | } |
| 2529 | |
| 2530 | HaveModules = HaveClangModules; |
| 2531 | if (Args.hasArg(options::OPT_fmodules_ts)) { |
| 2532 | CmdArgs.push_back("-fmodules-ts"); |
| 2533 | HaveModules = true; |
| 2534 | } |
| 2535 | |
| 2536 | // -fmodule-maps enables implicit reading of module map files. By default, |
| 2537 | // this is enabled if we are using Clang's flavor of precompiled modules. |
| 2538 | if (Args.hasFlag(options::OPT_fimplicit_module_maps, |
| 2539 | options::OPT_fno_implicit_module_maps, HaveClangModules)) |
| 2540 | CmdArgs.push_back("-fimplicit-module-maps"); |
| 2541 | |
| 2542 | // -fmodules-decluse checks that modules used are declared so (off by default) |
| 2543 | if (Args.hasFlag(options::OPT_fmodules_decluse, |
| 2544 | options::OPT_fno_modules_decluse, false)) |
| 2545 | CmdArgs.push_back("-fmodules-decluse"); |
| 2546 | |
| 2547 | // -fmodules-strict-decluse is like -fmodule-decluse, but also checks that |
| 2548 | // all #included headers are part of modules. |
| 2549 | if (Args.hasFlag(options::OPT_fmodules_strict_decluse, |
| 2550 | options::OPT_fno_modules_strict_decluse, false)) |
| 2551 | CmdArgs.push_back("-fmodules-strict-decluse"); |
| 2552 | |
| 2553 | // -fno-implicit-modules turns off implicitly compiling modules on demand. |
| 2554 | if (!Args.hasFlag(options::OPT_fimplicit_modules, |
| 2555 | options::OPT_fno_implicit_modules, HaveClangModules)) { |
| 2556 | if (HaveModules) |
| 2557 | CmdArgs.push_back("-fno-implicit-modules"); |
| 2558 | } else if (HaveModules) { |
| 2559 | // -fmodule-cache-path specifies where our implicitly-built module files |
| 2560 | // should be written. |
| 2561 | SmallString<128> Path; |
| 2562 | if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path)) |
| 2563 | Path = A->getValue(); |
| 2564 | |
| 2565 | if (C.isForDiagnostics()) { |
| 2566 | // When generating crash reports, we want to emit the modules along with |
| 2567 | // the reproduction sources, so we ignore any provided module path. |
| 2568 | Path = Output.getFilename(); |
| 2569 | llvm::sys::path::replace_extension(Path, ".cache"); |
| 2570 | llvm::sys::path::append(Path, "modules"); |
| 2571 | } else if (Path.empty()) { |
| 2572 | // No module path was provided: use the default. |
| 2573 | Driver::getDefaultModuleCachePath(Path); |
| 2574 | } |
| 2575 | |
| 2576 | const char Arg[] = "-fmodules-cache-path="; |
| 2577 | Path.insert(Path.begin(), Arg, Arg + strlen(Arg)); |
| 2578 | CmdArgs.push_back(Args.MakeArgString(Path)); |
| 2579 | } |
| 2580 | |
| 2581 | if (HaveModules) { |
| 2582 | // -fprebuilt-module-path specifies where to load the prebuilt module files. |
| 2583 | for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) { |
| 2584 | CmdArgs.push_back(Args.MakeArgString( |
| 2585 | std::string("-fprebuilt-module-path=") + A->getValue())); |
| 2586 | A->claim(); |
| 2587 | } |
| 2588 | } |
| 2589 | |
| 2590 | // -fmodule-name specifies the module that is currently being built (or |
| 2591 | // used for header checking by -fmodule-maps). |
| 2592 | Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ); |
| 2593 | |
| 2594 | // -fmodule-map-file can be used to specify files containing module |
| 2595 | // definitions. |
| 2596 | Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file); |
| 2597 | |
| 2598 | // -fbuiltin-module-map can be used to load the clang |
| 2599 | // builtin headers modulemap file. |
| 2600 | if (Args.hasArg(options::OPT_fbuiltin_module_map)) { |
| 2601 | SmallString<128> BuiltinModuleMap(D.ResourceDir); |
| 2602 | llvm::sys::path::append(BuiltinModuleMap, "include"); |
| 2603 | llvm::sys::path::append(BuiltinModuleMap, "module.modulemap"); |
| 2604 | if (llvm::sys::fs::exists(BuiltinModuleMap)) |
| 2605 | CmdArgs.push_back( |
| 2606 | Args.MakeArgString("-fmodule-map-file=" + BuiltinModuleMap)); |
| 2607 | } |
| 2608 | |
| 2609 | // The -fmodule-file=<name>=<file> form specifies the mapping of module |
| 2610 | // names to precompiled module files (the module is loaded only if used). |
| 2611 | // The -fmodule-file=<file> form can be used to unconditionally load |
| 2612 | // precompiled module files (whether used or not). |
| 2613 | if (HaveModules) |
| 2614 | Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file); |
| 2615 | else |
| 2616 | Args.ClaimAllArgs(options::OPT_fmodule_file); |
| 2617 | |
| 2618 | // When building modules and generating crashdumps, we need to dump a module |
| 2619 | // dependency VFS alongside the output. |
| 2620 | if (HaveClangModules && C.isForDiagnostics()) { |
| 2621 | SmallString<128> VFSDir(Output.getFilename()); |
| 2622 | llvm::sys::path::replace_extension(VFSDir, ".cache"); |
| 2623 | // Add the cache directory as a temp so the crash diagnostics pick it up. |
| 2624 | C.addTempFile(Args.MakeArgString(VFSDir)); |
| 2625 | |
| 2626 | llvm::sys::path::append(VFSDir, "vfs"); |
| 2627 | CmdArgs.push_back("-module-dependency-dir"); |
| 2628 | CmdArgs.push_back(Args.MakeArgString(VFSDir)); |
| 2629 | } |
| 2630 | |
| 2631 | if (HaveClangModules) |
| 2632 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path); |
| 2633 | |
| 2634 | // Pass through all -fmodules-ignore-macro arguments. |
| 2635 | Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro); |
| 2636 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval); |
| 2637 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after); |
| 2638 | |
| 2639 | Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp); |
| 2640 | |
| 2641 | if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) { |
| 2642 | if (Args.hasArg(options::OPT_fbuild_session_timestamp)) |
| 2643 | D.Diag(diag::err_drv_argument_not_allowed_with) |
| 2644 | << A->getAsString(Args) << "-fbuild-session-timestamp"; |
| 2645 | |
| 2646 | llvm::sys::fs::file_status Status; |
| 2647 | if (llvm::sys::fs::status(A->getValue(), Status)) |
| 2648 | D.Diag(diag::err_drv_no_such_file) << A->getValue(); |
| 2649 | CmdArgs.push_back( |
| 2650 | Args.MakeArgString("-fbuild-session-timestamp=" + |
| 2651 | Twine((uint64_t)Status.getLastModificationTime() |
| 2652 | .time_since_epoch() |
| 2653 | .count()))); |
| 2654 | } |
| 2655 | |
| 2656 | if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) { |
| 2657 | if (!Args.getLastArg(options::OPT_fbuild_session_timestamp, |
| 2658 | options::OPT_fbuild_session_file)) |
| 2659 | D.Diag(diag::err_drv_modules_validate_once_requires_timestamp); |
| 2660 | |
| 2661 | Args.AddLastArg(CmdArgs, |
| 2662 | options::OPT_fmodules_validate_once_per_build_session); |
| 2663 | } |
| 2664 | |
| 2665 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_validate_system_headers); |
| 2666 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation); |
| 2667 | } |
| 2668 | |
| 2669 | static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T, |
| 2670 | ArgStringList &CmdArgs) { |
| 2671 | // -fsigned-char is default. |
| 2672 | if (const Arg *A = Args.getLastArg(options::OPT_fsigned_char, |
| 2673 | options::OPT_fno_signed_char, |
| 2674 | options::OPT_funsigned_char, |
| 2675 | options::OPT_fno_unsigned_char)) { |
| 2676 | if (A->getOption().matches(options::OPT_funsigned_char) || |
| 2677 | A->getOption().matches(options::OPT_fno_signed_char)) { |
| 2678 | CmdArgs.push_back("-fno-signed-char"); |
| 2679 | } |
| 2680 | } else if (!isSignedCharDefault(T)) { |
| 2681 | CmdArgs.push_back("-fno-signed-char"); |
| 2682 | } |
| 2683 | |
| 2684 | if (const Arg *A = Args.getLastArg(options::OPT_fshort_wchar, |
| 2685 | options::OPT_fno_short_wchar)) { |
| 2686 | if (A->getOption().matches(options::OPT_fshort_wchar)) { |
| 2687 | CmdArgs.push_back("-fwchar-type=short"); |
| 2688 | CmdArgs.push_back("-fno-signed-wchar"); |
| 2689 | } else { |
| 2690 | bool IsARM = T.isARM() || T.isThumb() || T.isAArch64(); |
| 2691 | CmdArgs.push_back("-fwchar-type=int"); |
| 2692 | if (IsARM && !(T.isOSWindows() || T.getOS() == llvm::Triple::NetBSD || |
| 2693 | T.getOS() == llvm::Triple::OpenBSD)) |
| 2694 | CmdArgs.push_back("-fno-signed-wchar"); |
| 2695 | else |
| 2696 | CmdArgs.push_back("-fsigned-wchar"); |
| 2697 | } |
| 2698 | } |
| 2699 | } |
| 2700 | |
| 2701 | static void RenderObjCOptions(const ToolChain &TC, const Driver &D, |
| 2702 | const llvm::Triple &T, const ArgList &Args, |
| 2703 | ObjCRuntime &Runtime, bool InferCovariantReturns, |
| 2704 | const InputInfo &Input, ArgStringList &CmdArgs) { |
| 2705 | const llvm::Triple::ArchType Arch = TC.getArch(); |
| 2706 | |
| 2707 | // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and legacy |
| 2708 | // is the default. Except for deployment target of 10.5, next runtime is |
| 2709 | // always legacy dispatch and -fno-objc-legacy-dispatch gets ignored silently. |
| 2710 | if (Runtime.isNonFragile()) { |
| 2711 | if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch, |
| 2712 | options::OPT_fno_objc_legacy_dispatch, |
| 2713 | Runtime.isLegacyDispatchDefaultForArch(Arch))) { |
| 2714 | if (TC.UseObjCMixedDispatch()) |
| 2715 | CmdArgs.push_back("-fobjc-dispatch-method=mixed"); |
| 2716 | else |
| 2717 | CmdArgs.push_back("-fobjc-dispatch-method=non-legacy"); |
| 2718 | } |
| 2719 | } |
| 2720 | |
| 2721 | // When ObjectiveC legacy runtime is in effect on MacOSX, turn on the option |
| 2722 | // to do Array/Dictionary subscripting by default. |
| 2723 | if (Arch == llvm::Triple::x86 && T.isMacOSX() && |
| 2724 | !T.isMacOSXVersionLT(10, 7) && |
| 2725 | Runtime.getKind() == ObjCRuntime::FragileMacOSX && Runtime.isNeXTFamily()) |
| 2726 | CmdArgs.push_back("-fobjc-subscripting-legacy-runtime"); |
| 2727 | |
| 2728 | // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc. |
| 2729 | // NOTE: This logic is duplicated in ToolChains.cpp. |
| 2730 | if (isObjCAutoRefCount(Args)) { |
| 2731 | TC.CheckObjCARC(); |
| 2732 | |
| 2733 | CmdArgs.push_back("-fobjc-arc"); |
| 2734 | |
| 2735 | // FIXME: It seems like this entire block, and several around it should be |
| 2736 | // wrapped in isObjC, but for now we just use it here as this is where it |
| 2737 | // was being used previously. |
| 2738 | if (types::isCXX(Input.getType()) && types::isObjC(Input.getType())) { |
| 2739 | if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) |
| 2740 | CmdArgs.push_back("-fobjc-arc-cxxlib=libc++"); |
| 2741 | else |
| 2742 | CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++"); |
| 2743 | } |
| 2744 | |
| 2745 | // Allow the user to enable full exceptions code emission. |
| 2746 | // We default off for Objective-C, on for Objective-C++. |
| 2747 | if (Args.hasFlag(options::OPT_fobjc_arc_exceptions, |
| 2748 | options::OPT_fno_objc_arc_exceptions, |
| 2749 | /*default=*/types::isCXX(Input.getType()))) |
| 2750 | CmdArgs.push_back("-fobjc-arc-exceptions"); |
| 2751 | } |
| 2752 | |
| 2753 | // Silence warning for full exception code emission options when explicitly |
| 2754 | // set to use no ARC. |
| 2755 | if (Args.hasArg(options::OPT_fno_objc_arc)) { |
| 2756 | Args.ClaimAllArgs(options::OPT_fobjc_arc_exceptions); |
| 2757 | Args.ClaimAllArgs(options::OPT_fno_objc_arc_exceptions); |
| 2758 | } |
| 2759 | |
| 2760 | // -fobjc-infer-related-result-type is the default, except in the Objective-C |
| 2761 | // rewriter. |
| 2762 | if (InferCovariantReturns) |
| 2763 | CmdArgs.push_back("-fno-objc-infer-related-result-type"); |
| 2764 | |
| 2765 | // Pass down -fobjc-weak or -fno-objc-weak if present. |
| 2766 | if (types::isObjC(Input.getType())) { |
| 2767 | auto WeakArg = |
| 2768 | Args.getLastArg(options::OPT_fobjc_weak, options::OPT_fno_objc_weak); |
| 2769 | if (!WeakArg) { |
| 2770 | // nothing to do |
| 2771 | } else if (!Runtime.allowsWeak()) { |
| 2772 | if (WeakArg->getOption().matches(options::OPT_fobjc_weak)) |
| 2773 | D.Diag(diag::err_objc_weak_unsupported); |
| 2774 | } else { |
| 2775 | WeakArg->render(Args, CmdArgs); |
| 2776 | } |
| 2777 | } |
| 2778 | } |
| 2779 | |
| 2780 | static void RenderDiagnosticsOptions(const Driver &D, const ArgList &Args, |
| 2781 | ArgStringList &CmdArgs) { |
| 2782 | bool CaretDefault = true; |
| 2783 | bool ColumnDefault = true; |
| 2784 | |
| 2785 | if (const Arg *A = Args.getLastArg(options::OPT__SLASH_diagnostics_classic, |
| 2786 | options::OPT__SLASH_diagnostics_column, |
| 2787 | options::OPT__SLASH_diagnostics_caret)) { |
| 2788 | switch (A->getOption().getID()) { |
| 2789 | case options::OPT__SLASH_diagnostics_caret: |
| 2790 | CaretDefault = true; |
| 2791 | ColumnDefault = true; |
| 2792 | break; |
| 2793 | case options::OPT__SLASH_diagnostics_column: |
| 2794 | CaretDefault = false; |
| 2795 | ColumnDefault = true; |
| 2796 | break; |
| 2797 | case options::OPT__SLASH_diagnostics_classic: |
| 2798 | CaretDefault = false; |
| 2799 | ColumnDefault = false; |
| 2800 | break; |
| 2801 | } |
| 2802 | } |
| 2803 | |
| 2804 | // -fcaret-diagnostics is default. |
| 2805 | if (!Args.hasFlag(options::OPT_fcaret_diagnostics, |
| 2806 | options::OPT_fno_caret_diagnostics, CaretDefault)) |
| 2807 | CmdArgs.push_back("-fno-caret-diagnostics"); |
| 2808 | |
| 2809 | // -fdiagnostics-fixit-info is default, only pass non-default. |
| 2810 | if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info, |
| 2811 | options::OPT_fno_diagnostics_fixit_info)) |
| 2812 | CmdArgs.push_back("-fno-diagnostics-fixit-info"); |
| 2813 | |
| 2814 | // Enable -fdiagnostics-show-option by default. |
| 2815 | if (Args.hasFlag(options::OPT_fdiagnostics_show_option, |
| 2816 | options::OPT_fno_diagnostics_show_option)) |
| 2817 | CmdArgs.push_back("-fdiagnostics-show-option"); |
| 2818 | |
| 2819 | if (const Arg *A = |
| 2820 | Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) { |
| 2821 | CmdArgs.push_back("-fdiagnostics-show-category"); |
| 2822 | CmdArgs.push_back(A->getValue()); |
| 2823 | } |
| 2824 | |
| 2825 | if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness, |
| 2826 | options::OPT_fno_diagnostics_show_hotness, false)) |
| 2827 | CmdArgs.push_back("-fdiagnostics-show-hotness"); |
| 2828 | |
| 2829 | if (const Arg *A = |
| 2830 | Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { |
| 2831 | std::string Opt = |
| 2832 | std::string("-fdiagnostics-hotness-threshold=") + A->getValue(); |
| 2833 | CmdArgs.push_back(Args.MakeArgString(Opt)); |
| 2834 | } |
| 2835 | |
| 2836 | if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) { |
| 2837 | CmdArgs.push_back("-fdiagnostics-format"); |
| 2838 | CmdArgs.push_back(A->getValue()); |
| 2839 | } |
| 2840 | |
| 2841 | if (const Arg *A = Args.getLastArg( |
| 2842 | options::OPT_fdiagnostics_show_note_include_stack, |
| 2843 | options::OPT_fno_diagnostics_show_note_include_stack)) { |
| 2844 | const Option &O = A->getOption(); |
| 2845 | if (O.matches(options::OPT_fdiagnostics_show_note_include_stack)) |
| 2846 | CmdArgs.push_back("-fdiagnostics-show-note-include-stack"); |
| 2847 | else |
| 2848 | CmdArgs.push_back("-fno-diagnostics-show-note-include-stack"); |
| 2849 | } |
| 2850 | |
| 2851 | // Color diagnostics are parsed by the driver directly from argv and later |
| 2852 | // re-parsed to construct this job; claim any possible color diagnostic here |
| 2853 | // to avoid warn_drv_unused_argument and diagnose bad |
| 2854 | // OPT_fdiagnostics_color_EQ values. |
| 2855 | for (const Arg *A : Args) { |
| 2856 | const Option &O = A->getOption(); |
| 2857 | if (!O.matches(options::OPT_fcolor_diagnostics) && |
| 2858 | !O.matches(options::OPT_fdiagnostics_color) && |
| 2859 | !O.matches(options::OPT_fno_color_diagnostics) && |
| 2860 | !O.matches(options::OPT_fno_diagnostics_color) && |
| 2861 | !O.matches(options::OPT_fdiagnostics_color_EQ)) |
| 2862 | continue; |
| 2863 | |
| 2864 | if (O.matches(options::OPT_fdiagnostics_color_EQ)) { |
| 2865 | StringRef Value(A->getValue()); |
| 2866 | if (Value != "always" && Value != "never" && Value != "auto") |
| 2867 | D.Diag(diag::err_drv_clang_unsupported) |
| 2868 | << ("-fdiagnostics-color=" + Value).str(); |
| 2869 | } |
| 2870 | A->claim(); |
| 2871 | } |
| 2872 | |
| 2873 | if (D.getDiags().getDiagnosticOptions().ShowColors) |
| 2874 | CmdArgs.push_back("-fcolor-diagnostics"); |
| 2875 | |
| 2876 | if (Args.hasArg(options::OPT_fansi_escape_codes)) |
| 2877 | CmdArgs.push_back("-fansi-escape-codes"); |
| 2878 | |
| 2879 | if (!Args.hasFlag(options::OPT_fshow_source_location, |
| 2880 | options::OPT_fno_show_source_location)) |
| 2881 | CmdArgs.push_back("-fno-show-source-location"); |
| 2882 | |
| 2883 | if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths)) |
| 2884 | CmdArgs.push_back("-fdiagnostics-absolute-paths"); |
| 2885 | |
| 2886 | if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column, |
| 2887 | ColumnDefault)) |
| 2888 | CmdArgs.push_back("-fno-show-column"); |
| 2889 | |
| 2890 | if (!Args.hasFlag(options::OPT_fspell_checking, |
| 2891 | options::OPT_fno_spell_checking)) |
| 2892 | CmdArgs.push_back("-fno-spell-checking"); |
| 2893 | } |
| 2894 | |
| 2895 | static void RenderDebugOptions(const ToolChain &TC, const Driver &D, |
| 2896 | const llvm::Triple &T, const ArgList &Args, |
| 2897 | bool EmitCodeView, bool IsWindowsMSVC, |
| 2898 | ArgStringList &CmdArgs, |
| 2899 | codegenoptions::DebugInfoKind &DebugInfoKind, |
| 2900 | const Arg *&SplitDWARFArg) { |
| 2901 | if (Args.hasFlag(options::OPT_fdebug_info_for_profiling, |
| 2902 | options::OPT_fno_debug_info_for_profiling, false)) |
| 2903 | CmdArgs.push_back("-fdebug-info-for-profiling"); |
| 2904 | |
| 2905 | // The 'g' groups options involve a somewhat intricate sequence of decisions |
| 2906 | // about what to pass from the driver to the frontend, but by the time they |
| 2907 | // reach cc1 they've been factored into three well-defined orthogonal choices: |
| 2908 | // * what level of debug info to generate |
| 2909 | // * what dwarf version to write |
| 2910 | // * what debugger tuning to use |
| 2911 | // This avoids having to monkey around further in cc1 other than to disable |
| 2912 | // codeview if not running in a Windows environment. Perhaps even that |
| 2913 | // decision should be made in the driver as well though. |
| 2914 | unsigned DWARFVersion = 0; |
| 2915 | llvm::DebuggerKind DebuggerTuning = TC.getDefaultDebuggerTuning(); |
| 2916 | |
| 2917 | bool SplitDWARFInlining = |
| 2918 | Args.hasFlag(options::OPT_fsplit_dwarf_inlining, |
| 2919 | options::OPT_fno_split_dwarf_inlining, true); |
| 2920 | |
| 2921 | Args.ClaimAllArgs(options::OPT_g_Group); |
| 2922 | |
| 2923 | SplitDWARFArg = Args.getLastArg(options::OPT_gsplit_dwarf); |
| 2924 | |
| 2925 | if (const Arg *A = Args.getLastArg(options::OPT_g_Group)) { |
| 2926 | // If the last option explicitly specified a debug-info level, use it. |
| 2927 | if (A->getOption().matches(options::OPT_gN_Group)) { |
| 2928 | DebugInfoKind = DebugLevelToInfoKind(*A); |
| 2929 | // If you say "-gsplit-dwarf -gline-tables-only", -gsplit-dwarf loses. |
| 2930 | // But -gsplit-dwarf is not a g_group option, hence we have to check the |
| 2931 | // order explicitly. If -gsplit-dwarf wins, we fix DebugInfoKind later. |
| 2932 | // This gets a bit more complicated if you've disabled inline info in the |
| 2933 | // skeleton CUs (SplitDWARFInlining) - then there's value in composing |
| 2934 | // split-dwarf and line-tables-only, so let those compose naturally in |
| 2935 | // that case. |
| 2936 | // And if you just turned off debug info, (-gsplit-dwarf -g0) - do that. |
| 2937 | if (SplitDWARFArg) { |
| 2938 | if (A->getIndex() > SplitDWARFArg->getIndex()) { |
| 2939 | if (DebugInfoKind == codegenoptions::NoDebugInfo || |
| 2940 | (DebugInfoKind == codegenoptions::DebugLineTablesOnly && |
| 2941 | SplitDWARFInlining)) |
| 2942 | SplitDWARFArg = nullptr; |
| 2943 | } else if (SplitDWARFInlining) |
| 2944 | DebugInfoKind = codegenoptions::NoDebugInfo; |
| 2945 | } |
| 2946 | } else { |
| 2947 | // For any other 'g' option, use Limited. |
| 2948 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 2949 | } |
| 2950 | } |
| 2951 | |
| 2952 | // If a debugger tuning argument appeared, remember it. |
| 2953 | if (const Arg *A = |
| 2954 | Args.getLastArg(options::OPT_gTune_Group, options::OPT_ggdbN_Group)) { |
| 2955 | if (A->getOption().matches(options::OPT_glldb)) |
| 2956 | DebuggerTuning = llvm::DebuggerKind::LLDB; |
| 2957 | else if (A->getOption().matches(options::OPT_gsce)) |
| 2958 | DebuggerTuning = llvm::DebuggerKind::SCE; |
| 2959 | else |
| 2960 | DebuggerTuning = llvm::DebuggerKind::GDB; |
| 2961 | } |
| 2962 | |
| 2963 | // If a -gdwarf argument appeared, remember it. |
| 2964 | if (const Arg *A = |
| 2965 | Args.getLastArg(options::OPT_gdwarf_2, options::OPT_gdwarf_3, |
| 2966 | options::OPT_gdwarf_4, options::OPT_gdwarf_5)) |
| 2967 | DWARFVersion = DwarfVersionNum(A->getSpelling()); |
| 2968 | |
| 2969 | // Forward -gcodeview. EmitCodeView might have been set by CL-compatibility |
| 2970 | // argument parsing. |
| 2971 | if (EmitCodeView) { |
| 2972 | // DWARFVersion remains at 0 if no explicit choice was made. |
| 2973 | CmdArgs.push_back("-gcodeview"); |
| 2974 | } else if (DWARFVersion == 0 && |
| 2975 | DebugInfoKind != codegenoptions::NoDebugInfo) { |
| 2976 | DWARFVersion = TC.GetDefaultDwarfVersion(); |
| 2977 | } |
| 2978 | |
| 2979 | // We ignore flag -gstrict-dwarf for now. |
| 2980 | // And we handle flag -grecord-gcc-switches later with DWARFDebugFlags. |
| 2981 | Args.ClaimAllArgs(options::OPT_g_flags_Group); |
| 2982 | |
| 2983 | // Column info is included by default for everything except SCE and CodeView. |
| 2984 | // Clang doesn't track end columns, just starting columns, which, in theory, |
| 2985 | // is fine for CodeView (and PDB). In practice, however, the Microsoft |
| 2986 | // debuggers don't handle missing end columns well, so it's better not to |
| 2987 | // include any column info. |
| 2988 | if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info, |
| 2989 | /*Default=*/!(IsWindowsMSVC && EmitCodeView) && |
| 2990 | DebuggerTuning != llvm::DebuggerKind::SCE)) |
| 2991 | CmdArgs.push_back("-dwarf-column-info"); |
| 2992 | |
| 2993 | // FIXME: Move backend command line options to the module. |
| 2994 | // If -gline-tables-only is the last option it wins. |
| 2995 | if (DebugInfoKind != codegenoptions::DebugLineTablesOnly && |
| 2996 | Args.hasArg(options::OPT_gmodules)) { |
| 2997 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 2998 | CmdArgs.push_back("-dwarf-ext-refs"); |
| 2999 | CmdArgs.push_back("-fmodule-format=obj"); |
| 3000 | } |
| 3001 | |
| 3002 | // -gsplit-dwarf should turn on -g and enable the backend dwarf |
| 3003 | // splitting and extraction. |
| 3004 | // FIXME: Currently only works on Linux. |
| 3005 | if (T.isOSLinux()) { |
| 3006 | if (!SplitDWARFInlining) |
| 3007 | CmdArgs.push_back("-fno-split-dwarf-inlining"); |
| 3008 | |
| 3009 | if (SplitDWARFArg) { |
| 3010 | if (DebugInfoKind == codegenoptions::NoDebugInfo) |
| 3011 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 3012 | CmdArgs.push_back("-enable-split-dwarf"); |
| 3013 | } |
| 3014 | } |
| 3015 | |
| 3016 | // After we've dealt with all combinations of things that could |
| 3017 | // make DebugInfoKind be other than None or DebugLineTablesOnly, |
| 3018 | // figure out if we need to "upgrade" it to standalone debug info. |
| 3019 | // We parse these two '-f' options whether or not they will be used, |
| 3020 | // to claim them even if you wrote "-fstandalone-debug -gline-tables-only" |
| 3021 | bool NeedFullDebug = Args.hasFlag(options::OPT_fstandalone_debug, |
| 3022 | options::OPT_fno_standalone_debug, |
| 3023 | TC.GetDefaultStandaloneDebug()); |
| 3024 | if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug) |
| 3025 | DebugInfoKind = codegenoptions::FullDebugInfo; |
| 3026 | |
| 3027 | if (Args.hasFlag(options::OPT_gembed_source, options::OPT_gno_embed_source, false)) { |
| 3028 | // Source embedding is a vendor extension to DWARF v5. By now we have |
| 3029 | // checked if a DWARF version was stated explicitly, and have otherwise |
| 3030 | // fallen back to the target default, so if this is still not at least 5 we |
| 3031 | // emit an error. |
| 3032 | if (DWARFVersion < 5) |
| 3033 | D.Diag(diag::err_drv_argument_only_allowed_with) |
| 3034 | << Args.getLastArg(options::OPT_gembed_source)->getAsString(Args) |
| 3035 | << "-gdwarf-5"; |
| 3036 | CmdArgs.push_back("-gembed-source"); |
| 3037 | } |
| 3038 | |
| 3039 | RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DWARFVersion, |
| 3040 | DebuggerTuning); |
| 3041 | |
| 3042 | // -fdebug-macro turns on macro debug info generation. |
| 3043 | if (Args.hasFlag(options::OPT_fdebug_macro, options::OPT_fno_debug_macro, |
| 3044 | false)) |
| 3045 | CmdArgs.push_back("-debug-info-macro"); |
| 3046 | |
| 3047 | // -ggnu-pubnames turns on gnu style pubnames in the backend. |
| 3048 | if (Args.hasArg(options::OPT_ggnu_pubnames)) |
| 3049 | CmdArgs.push_back("-ggnu-pubnames"); |
| 3050 | |
| 3051 | // -gdwarf-aranges turns on the emission of the aranges section in the |
| 3052 | // backend. |
| 3053 | // Always enabled for SCE tuning. |
| 3054 | if (Args.hasArg(options::OPT_gdwarf_aranges) || |
| 3055 | DebuggerTuning == llvm::DebuggerKind::SCE) { |
| 3056 | CmdArgs.push_back("-backend-option"); |
| 3057 | CmdArgs.push_back("-generate-arange-section"); |
| 3058 | } |
| 3059 | |
| 3060 | if (Args.hasFlag(options::OPT_fdebug_types_section, |
| 3061 | options::OPT_fno_debug_types_section, false)) { |
| 3062 | CmdArgs.push_back("-backend-option"); |
| 3063 | CmdArgs.push_back("-generate-type-units"); |
| 3064 | } |
| 3065 | |
| 3066 | // Decide how to render forward declarations of template instantiations. |
| 3067 | // SCE wants full descriptions, others just get them in the name. |
| 3068 | if (DebuggerTuning == llvm::DebuggerKind::SCE) |
| 3069 | CmdArgs.push_back("-debug-forward-template-params"); |
| 3070 | |
| 3071 | // Do we need to explicitly import anonymous namespaces into the parent scope? |
| 3072 | if (DebuggerTuning == llvm::DebuggerKind::SCE) |
| 3073 | CmdArgs.push_back("-dwarf-explicit-import"); |
| 3074 | |
| 3075 | RenderDebugInfoCompressionArgs(Args, CmdArgs, D); |
| 3076 | } |
| 3077 | |
| 3078 | void Clang::ConstructJob(Compilation &C, const JobAction &JA, |
| 3079 | const InputInfo &Output, const InputInfoList &Inputs, |
| 3080 | const ArgList &Args, const char *LinkingOutput) const { |
| 3081 | const llvm::Triple &RawTriple = getToolChain().getTriple(); |
| 3082 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
| 3083 | const std::string &TripleStr = Triple.getTriple(); |
| 3084 | |
| 3085 | bool KernelOrKext = |
| 3086 | Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); |
| 3087 | const Driver &D = getToolChain().getDriver(); |
| 3088 | ArgStringList CmdArgs; |
| 3089 | |
| 3090 | // Check number of inputs for sanity. We need at least one input. |
| 3091 | assert(Inputs.size() >= 1 && "Must have at least one input.")(static_cast <bool> (Inputs.size() >= 1 && "Must have at least one input." ) ? void (0) : __assert_fail ("Inputs.size() >= 1 && \"Must have at least one input.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3091, __extension__ __PRETTY_FUNCTION__)); |
| 3092 | const InputInfo &Input = Inputs[0]; |
| 3093 | // CUDA compilation may have multiple inputs (source file + results of |
| 3094 | // device-side compilations). OpenMP device jobs also take the host IR as a |
| 3095 | // second input. All other jobs are expected to have exactly one |
| 3096 | // input. |
| 3097 | bool IsCuda = JA.isOffloading(Action::OFK_Cuda); |
| 3098 | bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP); |
| 3099 | assert((IsCuda || (IsOpenMPDevice && Inputs.size() == 2) ||(static_cast <bool> ((IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && "Unable to handle multiple inputs." ) ? void (0) : __assert_fail ("(IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && \"Unable to handle multiple inputs.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3101, __extension__ __PRETTY_FUNCTION__)) |
| 3100 | Inputs.size() == 1) &&(static_cast <bool> ((IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && "Unable to handle multiple inputs." ) ? void (0) : __assert_fail ("(IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && \"Unable to handle multiple inputs.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3101, __extension__ __PRETTY_FUNCTION__)) |
| 3101 | "Unable to handle multiple inputs.")(static_cast <bool> ((IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && "Unable to handle multiple inputs." ) ? void (0) : __assert_fail ("(IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && \"Unable to handle multiple inputs.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3101, __extension__ __PRETTY_FUNCTION__)); |
| 3102 | |
| 3103 | const llvm::Triple *AuxTriple = |
| 3104 | IsCuda ? getToolChain().getAuxTriple() : nullptr; |
| 3105 | |
| 3106 | bool IsWindowsGNU = RawTriple.isWindowsGNUEnvironment(); |
| 3107 | bool IsWindowsCygnus = RawTriple.isWindowsCygwinEnvironment(); |
| 3108 | bool IsWindowsMSVC = RawTriple.isWindowsMSVCEnvironment(); |
| 3109 | bool IsIAMCU = RawTriple.isOSIAMCU(); |
| 3110 | |
| 3111 | // Adjust IsWindowsXYZ for CUDA compilations. Even when compiling in device |
| 3112 | // mode (i.e., getToolchain().getTriple() is NVPTX, not Windows), we need to |
| 3113 | // pass Windows-specific flags to cc1. |
| 3114 | if (IsCuda) { |
| 3115 | IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment(); |
| 3116 | IsWindowsGNU |= AuxTriple && AuxTriple->isWindowsGNUEnvironment(); |
Value stored to 'IsWindowsGNU' is never read | |
| 3117 | IsWindowsCygnus |= AuxTriple && AuxTriple->isWindowsCygwinEnvironment(); |
| 3118 | } |
| 3119 | |
| 3120 | // C++ is not supported for IAMCU. |
| 3121 | if (IsIAMCU && types::isCXX(Input.getType())) |
| 3122 | D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU"; |
| 3123 | |
| 3124 | // Invoke ourselves in -cc1 mode. |
| 3125 | // |
| 3126 | // FIXME: Implement custom jobs for internal actions. |
| 3127 | CmdArgs.push_back("-cc1"); |
| 3128 | |
| 3129 | // Add the "effective" target triple. |
| 3130 | CmdArgs.push_back("-triple"); |
| 3131 | CmdArgs.push_back(Args.MakeArgString(TripleStr)); |
| 3132 | |
| 3133 | if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) { |
| 3134 | DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args); |
| 3135 | Args.ClaimAllArgs(options::OPT_MJ); |
| 3136 | } |
| 3137 | |
| 3138 | if (IsCuda) { |
| 3139 | // We have to pass the triple of the host if compiling for a CUDA device and |
| 3140 | // vice-versa. |
| 3141 | std::string NormalizedTriple; |
| 3142 | if (JA.isDeviceOffloading(Action::OFK_Cuda)) |
| 3143 | NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>() |
| 3144 | ->getTriple() |
| 3145 | .normalize(); |
| 3146 | else |
| 3147 | NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Cuda>() |
| 3148 | ->getTriple() |
| 3149 | .normalize(); |
| 3150 | |
| 3151 | CmdArgs.push_back("-aux-triple"); |
| 3152 | CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); |
| 3153 | } |
| 3154 | |
| 3155 | if (IsOpenMPDevice) { |
| 3156 | // We have to pass the triple of the host if compiling for an OpenMP device. |
| 3157 | std::string NormalizedTriple = |
| 3158 | C.getSingleOffloadToolChain<Action::OFK_Host>() |
| 3159 | ->getTriple() |
| 3160 | .normalize(); |
| 3161 | CmdArgs.push_back("-aux-triple"); |
| 3162 | CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); |
| 3163 | } |
| 3164 | |
| 3165 | if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm || |
| 3166 | Triple.getArch() == llvm::Triple::thumb)) { |
| 3167 | unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6; |
| 3168 | unsigned Version; |
| 3169 | Triple.getArchName().substr(Offset).getAsInteger(10, Version); |
| 3170 | if (Version < 7) |
| 3171 | D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName() |
| 3172 | << TripleStr; |
| 3173 | } |
| 3174 | |
| 3175 | // Push all default warning arguments that are specific to |
| 3176 | // the given target. These come before user provided warning options |
| 3177 | // are provided. |
| 3178 | getToolChain().addClangWarningOptions(CmdArgs); |
| 3179 | |
| 3180 | // Select the appropriate action. |
| 3181 | RewriteKind rewriteKind = RK_None; |
| 3182 | |
| 3183 | if (isa<AnalyzeJobAction>(JA)) { |
| 3184 | assert(JA.getType() == types::TY_Plist && "Invalid output type.")(static_cast <bool> (JA.getType() == types::TY_Plist && "Invalid output type.") ? void (0) : __assert_fail ("JA.getType() == types::TY_Plist && \"Invalid output type.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3184, __extension__ __PRETTY_FUNCTION__)); |
| 3185 | CmdArgs.push_back("-analyze"); |
| 3186 | } else if (isa<MigrateJobAction>(JA)) { |
| 3187 | CmdArgs.push_back("-migrate"); |
| 3188 | } else if (isa<PreprocessJobAction>(JA)) { |
| 3189 | if (Output.getType() == types::TY_Dependencies) |
| 3190 | CmdArgs.push_back("-Eonly"); |
| 3191 | else { |
| 3192 | CmdArgs.push_back("-E"); |
| 3193 | if (Args.hasArg(options::OPT_rewrite_objc) && |
| 3194 | !Args.hasArg(options::OPT_g_Group)) |
| 3195 | CmdArgs.push_back("-P"); |
| 3196 | } |
| 3197 | } else if (isa<AssembleJobAction>(JA)) { |
| 3198 | CmdArgs.push_back("-emit-obj"); |
| 3199 | |
| 3200 | CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D); |
| 3201 | |
| 3202 | // Also ignore explicit -force_cpusubtype_ALL option. |
| 3203 | (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); |
| 3204 | } else if (isa<PrecompileJobAction>(JA)) { |
| 3205 | // Use PCH if the user requested it. |
| 3206 | bool UsePCH = D.CCCUsePCH; |
| 3207 | |
| 3208 | if (JA.getType() == types::TY_Nothing) |
| 3209 | CmdArgs.push_back("-fsyntax-only"); |
| 3210 | else if (JA.getType() == types::TY_ModuleFile) |
| 3211 | CmdArgs.push_back("-emit-module-interface"); |
| 3212 | else if (UsePCH) |
| 3213 | CmdArgs.push_back("-emit-pch"); |
| 3214 | else |
| 3215 | CmdArgs.push_back("-emit-pth"); |
| 3216 | } else if (isa<VerifyPCHJobAction>(JA)) { |
| 3217 | CmdArgs.push_back("-verify-pch"); |
| 3218 | } else { |
| 3219 | assert((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) &&(static_cast <bool> ((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && "Invalid action for clang tool." ) ? void (0) : __assert_fail ("(isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && \"Invalid action for clang tool.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3220, __extension__ __PRETTY_FUNCTION__)) |
| 3220 | "Invalid action for clang tool.")(static_cast <bool> ((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && "Invalid action for clang tool." ) ? void (0) : __assert_fail ("(isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && \"Invalid action for clang tool.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3220, __extension__ __PRETTY_FUNCTION__)); |
| 3221 | if (JA.getType() == types::TY_Nothing) { |
| 3222 | CmdArgs.push_back("-fsyntax-only"); |
| 3223 | } else if (JA.getType() == types::TY_LLVM_IR || |
| 3224 | JA.getType() == types::TY_LTO_IR) { |
| 3225 | CmdArgs.push_back("-emit-llvm"); |
| 3226 | } else if (JA.getType() == types::TY_LLVM_BC || |
| 3227 | JA.getType() == types::TY_LTO_BC) { |
| 3228 | CmdArgs.push_back("-emit-llvm-bc"); |
| 3229 | } else if (JA.getType() == types::TY_PP_Asm) { |
| 3230 | CmdArgs.push_back("-S"); |
| 3231 | } else if (JA.getType() == types::TY_AST) { |
| 3232 | CmdArgs.push_back("-emit-pch"); |
| 3233 | } else if (JA.getType() == types::TY_ModuleFile) { |
| 3234 | CmdArgs.push_back("-module-file-info"); |
| 3235 | } else if (JA.getType() == types::TY_RewrittenObjC) { |
| 3236 | CmdArgs.push_back("-rewrite-objc"); |
| 3237 | rewriteKind = RK_NonFragile; |
| 3238 | } else if (JA.getType() == types::TY_RewrittenLegacyObjC) { |
| 3239 | CmdArgs.push_back("-rewrite-objc"); |
| 3240 | rewriteKind = RK_Fragile; |
| 3241 | } else { |
| 3242 | assert(JA.getType() == types::TY_PP_Asm && "Unexpected output type!")(static_cast <bool> (JA.getType() == types::TY_PP_Asm && "Unexpected output type!") ? void (0) : __assert_fail ("JA.getType() == types::TY_PP_Asm && \"Unexpected output type!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3242, __extension__ __PRETTY_FUNCTION__)); |
| 3243 | } |
| 3244 | |
| 3245 | // Preserve use-list order by default when emitting bitcode, so that |
| 3246 | // loading the bitcode up in 'opt' or 'llc' and running passes gives the |
| 3247 | // same result as running passes here. For LTO, we don't need to preserve |
| 3248 | // the use-list order, since serialization to bitcode is part of the flow. |
| 3249 | if (JA.getType() == types::TY_LLVM_BC) |
| 3250 | CmdArgs.push_back("-emit-llvm-uselists"); |
| 3251 | |
| 3252 | // Device-side jobs do not support LTO. |
| 3253 | bool isDeviceOffloadAction = !(JA.isDeviceOffloading(Action::OFK_None) || |
| 3254 | JA.isDeviceOffloading(Action::OFK_Host)); |
| 3255 | |
| 3256 | if (D.isUsingLTO() && !isDeviceOffloadAction) { |
| 3257 | Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ); |
| 3258 | |
| 3259 | // The Darwin and PS4 linkers currently use the legacy LTO API, which |
| 3260 | // does not support LTO unit features (CFI, whole program vtable opt) |
| 3261 | // under ThinLTO. |
| 3262 | if (!(RawTriple.isOSDarwin() || RawTriple.isPS4()) || |
| 3263 | D.getLTOMode() == LTOK_Full) |
| 3264 | CmdArgs.push_back("-flto-unit"); |
| 3265 | } |
| 3266 | } |
| 3267 | |
| 3268 | if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) { |
| 3269 | if (!types::isLLVMIR(Input.getType())) |
| 3270 | D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) |
| 3271 | << "-x ir"; |
| 3272 | Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ); |
| 3273 | } |
| 3274 | |
| 3275 | // Embed-bitcode option. |
| 3276 | if (C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO() && |
| 3277 | (isa<BackendJobAction>(JA) || isa<AssembleJobAction>(JA))) { |
| 3278 | // Add flags implied by -fembed-bitcode. |
| 3279 | Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ); |
| 3280 | // Disable all llvm IR level optimizations. |
| 3281 | CmdArgs.push_back("-disable-llvm-passes"); |
| 3282 | } |
| 3283 | if (C.getDriver().embedBitcodeMarkerOnly() && !C.getDriver().isUsingLTO()) |
| 3284 | CmdArgs.push_back("-fembed-bitcode=marker"); |
| 3285 | |
| 3286 | // We normally speed up the clang process a bit by skipping destructors at |
| 3287 | // exit, but when we're generating diagnostics we can rely on some of the |
| 3288 | // cleanup. |
| 3289 | if (!C.isForDiagnostics()) |
| 3290 | CmdArgs.push_back("-disable-free"); |
| 3291 | |
| 3292 | #ifdef NDEBUG |
| 3293 | const bool IsAssertBuild = false; |
| 3294 | #else |
| 3295 | const bool IsAssertBuild = true; |
| 3296 | #endif |
| 3297 | |
| 3298 | // Disable the verification pass in -asserts builds. |
| 3299 | if (!IsAssertBuild) |
| 3300 | CmdArgs.push_back("-disable-llvm-verifier"); |
| 3301 | |
| 3302 | // Discard value names in assert builds unless otherwise specified. |
| 3303 | if (Args.hasFlag(options::OPT_fdiscard_value_names, |
| 3304 | options::OPT_fno_discard_value_names, !IsAssertBuild)) |
| 3305 | CmdArgs.push_back("-discard-value-names"); |
| 3306 | |
| 3307 | // Set the main file name, so that debug info works even with |
| 3308 | // -save-temps. |
| 3309 | CmdArgs.push_back("-main-file-name"); |
| 3310 | CmdArgs.push_back(getBaseInputName(Args, Input)); |
| 3311 | |
| 3312 | // Some flags which affect the language (via preprocessor |
| 3313 | // defines). |
| 3314 | if (Args.hasArg(options::OPT_static)) |
| 3315 | CmdArgs.push_back("-static-define"); |
| 3316 | |
| 3317 | if (isa<AnalyzeJobAction>(JA)) |
| 3318 | RenderAnalyzerOptions(Args, CmdArgs, Triple, Input); |
| 3319 | |
| 3320 | CheckCodeGenerationOptions(D, Args); |
| 3321 | |
| 3322 | llvm::Reloc::Model RelocationModel; |
| 3323 | unsigned PICLevel; |
| 3324 | bool IsPIE; |
| 3325 | std::tie(RelocationModel, PICLevel, IsPIE) = |
| 3326 | ParsePICArgs(getToolChain(), Args); |
| 3327 | |
| 3328 | const char *RMName = RelocationModelName(RelocationModel); |
| 3329 | |
| 3330 | if ((RelocationModel == llvm::Reloc::ROPI || |
| 3331 | RelocationModel == llvm::Reloc::ROPI_RWPI) && |
| 3332 | types::isCXX(Input.getType()) && |
| 3333 | !Args.hasArg(options::OPT_fallow_unsupported)) |
| 3334 | D.Diag(diag::err_drv_ropi_incompatible_with_cxx); |
| 3335 | |
| 3336 | if (RMName) { |
| 3337 | CmdArgs.push_back("-mrelocation-model"); |
| 3338 | CmdArgs.push_back(RMName); |
| 3339 | } |
| 3340 | if (PICLevel > 0) { |
| 3341 | CmdArgs.push_back("-pic-level"); |
| 3342 | CmdArgs.push_back(PICLevel == 1 ? "1" : "2"); |
| 3343 | if (IsPIE) |
| 3344 | CmdArgs.push_back("-pic-is-pie"); |
| 3345 | } |
| 3346 | |
| 3347 | if (Arg *A = Args.getLastArg(options::OPT_meabi)) { |
| 3348 | CmdArgs.push_back("-meabi"); |
| 3349 | CmdArgs.push_back(A->getValue()); |
| 3350 | } |
| 3351 | |
| 3352 | CmdArgs.push_back("-mthread-model"); |
| 3353 | if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) { |
| 3354 | if (!getToolChain().isThreadModelSupported(A->getValue())) |
| 3355 | D.Diag(diag::err_drv_invalid_thread_model_for_target) |
| 3356 | << A->getValue() << A->getAsString(Args); |
| 3357 | CmdArgs.push_back(A->getValue()); |
| 3358 | } |
| 3359 | else |
| 3360 | CmdArgs.push_back(Args.MakeArgString(getToolChain().getThreadModel())); |
| 3361 | |
| 3362 | Args.AddLastArg(CmdArgs, options::OPT_fveclib); |
| 3363 | |
| 3364 | if (Args.hasFlag(options::OPT_fmerge_all_constants, |
| 3365 | options::OPT_fno_merge_all_constants, false)) |
| 3366 | CmdArgs.push_back("-fmerge-all-constants"); |
| 3367 | |
| 3368 | // LLVM Code Generator Options. |
| 3369 | |
| 3370 | if (Args.hasArg(options::OPT_frewrite_map_file) || |
| 3371 | Args.hasArg(options::OPT_frewrite_map_file_EQ)) { |
| 3372 | for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file, |
| 3373 | options::OPT_frewrite_map_file_EQ)) { |
| 3374 | StringRef Map = A->getValue(); |
| 3375 | if (!llvm::sys::fs::exists(Map)) { |
| 3376 | D.Diag(diag::err_drv_no_such_file) << Map; |
| 3377 | } else { |
| 3378 | CmdArgs.push_back("-frewrite-map-file"); |
| 3379 | CmdArgs.push_back(A->getValue()); |
| 3380 | A->claim(); |
| 3381 | } |
| 3382 | } |
| 3383 | } |
| 3384 | |
| 3385 | if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) { |
| 3386 | StringRef v = A->getValue(); |
| 3387 | CmdArgs.push_back("-mllvm"); |
| 3388 | CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v)); |
| 3389 | A->claim(); |
| 3390 | } |
| 3391 | |
| 3392 | if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables, |
| 3393 | true)) |
| 3394 | CmdArgs.push_back("-fno-jump-tables"); |
| 3395 | |
| 3396 | if (Args.hasFlag(options::OPT_fprofile_sample_accurate, |
| 3397 | options::OPT_fno_profile_sample_accurate, false)) |
| 3398 | CmdArgs.push_back("-fprofile-sample-accurate"); |
| 3399 | |
| 3400 | if (!Args.hasFlag(options::OPT_fpreserve_as_comments, |
| 3401 | options::OPT_fno_preserve_as_comments, true)) |
| 3402 | CmdArgs.push_back("-fno-preserve-as-comments"); |
| 3403 | |
| 3404 | if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { |
| 3405 | CmdArgs.push_back("-mregparm"); |
| 3406 | CmdArgs.push_back(A->getValue()); |
| 3407 | } |
| 3408 | |
| 3409 | if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return, |
| 3410 | options::OPT_freg_struct_return)) { |
| 3411 | if (getToolChain().getArch() != llvm::Triple::x86) { |
| 3412 | D.Diag(diag::err_drv_unsupported_opt_for_target) |
| 3413 | << A->getSpelling() << RawTriple.str(); |
| 3414 | } else if (A->getOption().matches(options::OPT_fpcc_struct_return)) { |
| 3415 | CmdArgs.push_back("-fpcc-struct-return"); |
| 3416 | } else { |
| 3417 | assert(A->getOption().matches(options::OPT_freg_struct_return))(static_cast <bool> (A->getOption().matches(options:: OPT_freg_struct_return)) ? void (0) : __assert_fail ("A->getOption().matches(options::OPT_freg_struct_return)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3417, __extension__ __PRETTY_FUNCTION__)); |
| 3418 | CmdArgs.push_back("-freg-struct-return"); |
| 3419 | } |
| 3420 | } |
| 3421 | |
| 3422 | if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false)) |
| 3423 | CmdArgs.push_back("-fdefault-calling-conv=stdcall"); |
| 3424 | |
| 3425 | if (shouldUseFramePointer(Args, RawTriple)) |
| 3426 | CmdArgs.push_back("-mdisable-fp-elim"); |
| 3427 | if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss, |
| 3428 | options::OPT_fno_zero_initialized_in_bss)) |
| 3429 | CmdArgs.push_back("-mno-zero-initialized-in-bss"); |
| 3430 | |
| 3431 | bool OFastEnabled = isOptimizationLevelFast(Args); |
| 3432 | // If -Ofast is the optimization level, then -fstrict-aliasing should be |
| 3433 | // enabled. This alias option is being used to simplify the hasFlag logic. |
| 3434 | OptSpecifier StrictAliasingAliasOption = |
| 3435 | OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing; |
| 3436 | // We turn strict aliasing off by default if we're in CL mode, since MSVC |
| 3437 | // doesn't do any TBAA. |
| 3438 | bool TBAAOnByDefault = !D.IsCLMode(); |
| 3439 | if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption, |
| 3440 | options::OPT_fno_strict_aliasing, TBAAOnByDefault)) |
| 3441 | CmdArgs.push_back("-relaxed-aliasing"); |
| 3442 | if (!Args.hasFlag(options::OPT_fstruct_path_tbaa, |
| 3443 | options::OPT_fno_struct_path_tbaa)) |
| 3444 | CmdArgs.push_back("-no-struct-path-tbaa"); |
| 3445 | if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums, |
| 3446 | false)) |
| 3447 | CmdArgs.push_back("-fstrict-enums"); |
| 3448 | if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return, |
| 3449 | true)) |
| 3450 | CmdArgs.push_back("-fno-strict-return"); |
| 3451 | if (Args.hasFlag(options::OPT_fallow_editor_placeholders, |
| 3452 | options::OPT_fno_allow_editor_placeholders, false)) |
| 3453 | CmdArgs.push_back("-fallow-editor-placeholders"); |
| 3454 | if (Args.hasFlag(options::OPT_fstrict_vtable_pointers, |
| 3455 | options::OPT_fno_strict_vtable_pointers, |
| 3456 | false)) |
| 3457 | CmdArgs.push_back("-fstrict-vtable-pointers"); |
| 3458 | if (!Args.hasFlag(options::OPT_foptimize_sibling_calls, |
| 3459 | options::OPT_fno_optimize_sibling_calls)) |
| 3460 | CmdArgs.push_back("-mdisable-tail-calls"); |
| 3461 | if (Args.hasFlag(options::OPT_fno_escaping_block_tail_calls, |
| 3462 | options::OPT_fescaping_block_tail_calls, false)) |
| 3463 | CmdArgs.push_back("-fno-escaping-block-tail-calls"); |
| 3464 | |
| 3465 | Args.AddLastArg(CmdArgs, options::OPT_ffine_grained_bitfield_accesses, |
| 3466 | options::OPT_fno_fine_grained_bitfield_accesses); |
| 3467 | |
| 3468 | // Handle segmented stacks. |
| 3469 | if (Args.hasArg(options::OPT_fsplit_stack)) |
| 3470 | CmdArgs.push_back("-split-stacks"); |
| 3471 | |
| 3472 | RenderFloatingPointOptions(getToolChain(), D, OFastEnabled, Args, CmdArgs); |
| 3473 | |
| 3474 | // Decide whether to use verbose asm. Verbose assembly is the default on |
| 3475 | // toolchains which have the integrated assembler on by default. |
| 3476 | bool IsIntegratedAssemblerDefault = |
| 3477 | getToolChain().IsIntegratedAssemblerDefault(); |
| 3478 | if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm, |
| 3479 | IsIntegratedAssemblerDefault) || |
| 3480 | Args.hasArg(options::OPT_dA)) |
| 3481 | CmdArgs.push_back("-masm-verbose"); |
| 3482 | |
| 3483 | if (!Args.hasFlag(options::OPT_fintegrated_as, options::OPT_fno_integrated_as, |
| 3484 | IsIntegratedAssemblerDefault)) |
| 3485 | CmdArgs.push_back("-no-integrated-as"); |
| 3486 | |
| 3487 | if (Args.hasArg(options::OPT_fdebug_pass_structure)) { |
| 3488 | CmdArgs.push_back("-mdebug-pass"); |
| 3489 | CmdArgs.push_back("Structure"); |
| 3490 | } |
| 3491 | if (Args.hasArg(options::OPT_fdebug_pass_arguments)) { |
| 3492 | CmdArgs.push_back("-mdebug-pass"); |
| 3493 | CmdArgs.push_back("Arguments"); |
| 3494 | } |
| 3495 | |
| 3496 | // Enable -mconstructor-aliases except on darwin, where we have to work around |
| 3497 | // a linker bug (see <rdar://problem/7651567>), and CUDA device code, where |
| 3498 | // aliases aren't supported. |
| 3499 | if (!RawTriple.isOSDarwin() && !RawTriple.isNVPTX()) |
| 3500 | CmdArgs.push_back("-mconstructor-aliases"); |
| 3501 | |
| 3502 | // Darwin's kernel doesn't support guard variables; just die if we |
| 3503 | // try to use them. |
| 3504 | if (KernelOrKext && RawTriple.isOSDarwin()) |
| 3505 | CmdArgs.push_back("-fforbid-guard-variables"); |
| 3506 | |
| 3507 | if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields, |
| 3508 | false)) { |
| 3509 | CmdArgs.push_back("-mms-bitfields"); |
| 3510 | } |
| 3511 | |
| 3512 | if (Args.hasFlag(options::OPT_mpie_copy_relocations, |
| 3513 | options::OPT_mno_pie_copy_relocations, |
| 3514 | false)) { |
| 3515 | CmdArgs.push_back("-mpie-copy-relocations"); |
| 3516 | } |
| 3517 | |
| 3518 | if (Args.hasFlag(options::OPT_fno_plt, options::OPT_fplt, false)) { |
| 3519 | CmdArgs.push_back("-fno-plt"); |
| 3520 | } |
| 3521 | |
| 3522 | // -fhosted is default. |
| 3523 | // TODO: Audit uses of KernelOrKext and see where it'd be more appropriate to |
| 3524 | // use Freestanding. |
| 3525 | bool Freestanding = |
| 3526 | Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) || |
| 3527 | KernelOrKext; |
| 3528 | if (Freestanding) |
| 3529 | CmdArgs.push_back("-ffreestanding"); |
| 3530 | |
| 3531 | // This is a coarse approximation of what llvm-gcc actually does, both |
| 3532 | // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more |
| 3533 | // complicated ways. |
| 3534 | bool AsynchronousUnwindTables = |
| 3535 | Args.hasFlag(options::OPT_fasynchronous_unwind_tables, |
| 3536 | options::OPT_fno_asynchronous_unwind_tables, |
| 3537 | (getToolChain().IsUnwindTablesDefault(Args) || |
| 3538 | getToolChain().getSanitizerArgs().needsUnwindTables()) && |
| 3539 | !Freestanding); |
| 3540 | if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables, |
| 3541 | AsynchronousUnwindTables)) |
| 3542 | CmdArgs.push_back("-munwind-tables"); |
| 3543 | |
| 3544 | getToolChain().addClangTargetOptions(Args, CmdArgs, |
| 3545 | JA.getOffloadingDeviceKind()); |
| 3546 | |
| 3547 | if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) { |
| 3548 | CmdArgs.push_back("-mlimit-float-precision"); |
| 3549 | CmdArgs.push_back(A->getValue()); |
| 3550 | } |
| 3551 | |
| 3552 | // FIXME: Handle -mtune=. |
| 3553 | (void)Args.hasArg(options::OPT_mtune_EQ); |
| 3554 | |
| 3555 | if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) { |
| 3556 | CmdArgs.push_back("-mcode-model"); |
| 3557 | CmdArgs.push_back(A->getValue()); |
| 3558 | } |
| 3559 | |
| 3560 | // Add the target cpu |
| 3561 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); |
| 3562 | if (!CPU.empty()) { |
| 3563 | CmdArgs.push_back("-target-cpu"); |
| 3564 | CmdArgs.push_back(Args.MakeArgString(CPU)); |
| 3565 | } |
| 3566 | |
| 3567 | RenderTargetOptions(Triple, Args, KernelOrKext, CmdArgs); |
| 3568 | |
| 3569 | // These two are potentially updated by AddClangCLArgs. |
| 3570 | codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; |
| 3571 | bool EmitCodeView = false; |
| 3572 | |
| 3573 | // Add clang-cl arguments. |
| 3574 | types::ID InputType = Input.getType(); |
| 3575 | if (D.IsCLMode()) |
| 3576 | AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView); |
| 3577 | else |
| 3578 | EmitCodeView = Args.hasArg(options::OPT_gcodeview); |
| 3579 | |
| 3580 | const Arg *SplitDWARFArg = nullptr; |
| 3581 | RenderDebugOptions(getToolChain(), D, RawTriple, Args, EmitCodeView, |
| 3582 | IsWindowsMSVC, CmdArgs, DebugInfoKind, SplitDWARFArg); |
| 3583 | |
| 3584 | // Add the split debug info name to the command lines here so we |
| 3585 | // can propagate it to the backend. |
| 3586 | bool SplitDWARF = SplitDWARFArg && RawTriple.isOSLinux() && |
| 3587 | (isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA) || |
| 3588 | isa<BackendJobAction>(JA)); |
| 3589 | const char *SplitDWARFOut; |
| 3590 | if (SplitDWARF) { |
| 3591 | CmdArgs.push_back("-split-dwarf-file"); |
| 3592 | SplitDWARFOut = SplitDebugName(Args, Input); |
| 3593 | CmdArgs.push_back(SplitDWARFOut); |
| 3594 | } |
| 3595 | |
| 3596 | // Pass the linker version in use. |
| 3597 | if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { |
| 3598 | CmdArgs.push_back("-target-linker-version"); |
| 3599 | CmdArgs.push_back(A->getValue()); |
| 3600 | } |
| 3601 | |
| 3602 | if (!shouldUseLeafFramePointer(Args, RawTriple)) |
| 3603 | CmdArgs.push_back("-momit-leaf-frame-pointer"); |
| 3604 | |
| 3605 | // Explicitly error on some things we know we don't support and can't just |
| 3606 | // ignore. |
| 3607 | if (!Args.hasArg(options::OPT_fallow_unsupported)) { |
| 3608 | Arg *Unsupported; |
| 3609 | if (types::isCXX(InputType) && RawTriple.isOSDarwin() && |
| 3610 | getToolChain().getArch() == llvm::Triple::x86) { |
| 3611 | if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) || |
| 3612 | (Unsupported = Args.getLastArg(options::OPT_mkernel))) |
| 3613 | D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386) |
| 3614 | << Unsupported->getOption().getName(); |
| 3615 | } |
| 3616 | // The faltivec option has been superseded by the maltivec option. |
| 3617 | if ((Unsupported = Args.getLastArg(options::OPT_faltivec))) |
| 3618 | D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) |
| 3619 | << Unsupported->getOption().getName() |
| 3620 | << "please use -maltivec and include altivec.h explicitly"; |
| 3621 | if ((Unsupported = Args.getLastArg(options::OPT_fno_altivec))) |
| 3622 | D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) |
| 3623 | << Unsupported->getOption().getName() << "please use -mno-altivec"; |
| 3624 | } |
| 3625 | |
| 3626 | Args.AddAllArgs(CmdArgs, options::OPT_v); |
| 3627 | Args.AddLastArg(CmdArgs, options::OPT_H); |
| 3628 | if (D.CCPrintHeaders && !D.CCGenDiagnostics) { |
| 3629 | CmdArgs.push_back("-header-include-file"); |
| 3630 | CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename |
| 3631 | : "-"); |
| 3632 | } |
| 3633 | Args.AddLastArg(CmdArgs, options::OPT_P); |
| 3634 | Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout); |
| 3635 | |
| 3636 | if (D.CCLogDiagnostics && !D.CCGenDiagnostics) { |
| 3637 | CmdArgs.push_back("-diagnostic-log-file"); |
| 3638 | CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename |
| 3639 | : "-"); |
| 3640 | } |
| 3641 | |
| 3642 | bool UseSeparateSections = isUseSeparateSections(Triple); |
| 3643 | |
| 3644 | if (Args.hasFlag(options::OPT_ffunction_sections, |
| 3645 | options::OPT_fno_function_sections, UseSeparateSections)) { |
| 3646 | CmdArgs.push_back("-ffunction-sections"); |
| 3647 | } |
| 3648 | |
| 3649 | if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections, |
| 3650 | UseSeparateSections)) { |
| 3651 | CmdArgs.push_back("-fdata-sections"); |
| 3652 | } |
| 3653 | |
| 3654 | if (!Args.hasFlag(options::OPT_funique_section_names, |
| 3655 | options::OPT_fno_unique_section_names, true)) |
| 3656 | CmdArgs.push_back("-fno-unique-section-names"); |
| 3657 | |
| 3658 | if (auto *A = Args.getLastArg( |
| 3659 | options::OPT_finstrument_functions, |
| 3660 | options::OPT_finstrument_functions_after_inlining, |
| 3661 | options::OPT_finstrument_function_entry_bare)) |
| 3662 | A->render(Args, CmdArgs); |
| 3663 | |
| 3664 | // NVPTX doesn't support PGO or coverage. There's no runtime support for |
| 3665 | // sampling, overhead of call arc collection is way too high and there's no |
| 3666 | // way to collect the output. |
| 3667 | if (!Triple.isNVPTX()) |
| 3668 | addPGOAndCoverageFlags(C, D, Output, Args, CmdArgs); |
| 3669 | |
| 3670 | if (auto *ABICompatArg = Args.getLastArg(options::OPT_fclang_abi_compat_EQ)) |
| 3671 | ABICompatArg->render(Args, CmdArgs); |
| 3672 | |
| 3673 | // Add runtime flag for PS4 when PGO or Coverage are enabled. |
| 3674 | if (RawTriple.isPS4CPU()) |
| 3675 | PS4cpu::addProfileRTArgs(getToolChain(), Args, CmdArgs); |
| 3676 | |
| 3677 | // Pass options for controlling the default header search paths. |
| 3678 | if (Args.hasArg(options::OPT_nostdinc)) { |
| 3679 | CmdArgs.push_back("-nostdsysteminc"); |
| 3680 | CmdArgs.push_back("-nobuiltininc"); |
| 3681 | } else { |
| 3682 | if (Args.hasArg(options::OPT_nostdlibinc)) |
| 3683 | CmdArgs.push_back("-nostdsysteminc"); |
| 3684 | Args.AddLastArg(CmdArgs, options::OPT_nostdincxx); |
| 3685 | Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc); |
| 3686 | } |
| 3687 | |
| 3688 | // Pass the path to compiler resource files. |
| 3689 | CmdArgs.push_back("-resource-dir"); |
| 3690 | CmdArgs.push_back(D.ResourceDir.c_str()); |
| 3691 | |
| 3692 | Args.AddLastArg(CmdArgs, options::OPT_working_directory); |
| 3693 | |
| 3694 | RenderARCMigrateToolOptions(D, Args, CmdArgs); |
| 3695 | |
| 3696 | // Add preprocessing options like -I, -D, etc. if we are using the |
| 3697 | // preprocessor. |
| 3698 | // |
| 3699 | // FIXME: Support -fpreprocessed |
| 3700 | if (types::getPreprocessedType(InputType) != types::TY_INVALID) |
| 3701 | AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs); |
| 3702 | |
| 3703 | // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes |
| 3704 | // that "The compiler can only warn and ignore the option if not recognized". |
| 3705 | // When building with ccache, it will pass -D options to clang even on |
| 3706 | // preprocessed inputs and configure concludes that -fPIC is not supported. |
| 3707 | Args.ClaimAllArgs(options::OPT_D); |
| 3708 | |
| 3709 | // Manually translate -O4 to -O3; let clang reject others. |
| 3710 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
| 3711 | if (A->getOption().matches(options::OPT_O4)) { |
| 3712 | CmdArgs.push_back("-O3"); |
| 3713 | D.Diag(diag::warn_O4_is_O3); |
| 3714 | } else { |
| 3715 | A->render(Args, CmdArgs); |
| 3716 | } |
| 3717 | } |
| 3718 | |
| 3719 | // Warn about ignored options to clang. |
| 3720 | for (const Arg *A : |
| 3721 | Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) { |
| 3722 | D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args); |
| 3723 | A->claim(); |
| 3724 | } |
| 3725 | |
| 3726 | for (const Arg *A : |
| 3727 | Args.filtered(options::OPT_clang_ignored_legacy_options_Group)) { |
| 3728 | D.Diag(diag::warn_ignored_clang_option) << A->getAsString(Args); |
| 3729 | A->claim(); |
| 3730 | } |
| 3731 | |
| 3732 | claimNoWarnArgs(Args); |
| 3733 | |
| 3734 | Args.AddAllArgs(CmdArgs, options::OPT_R_Group); |
| 3735 | |
| 3736 | Args.AddAllArgs(CmdArgs, options::OPT_W_Group); |
| 3737 | if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false)) |
| 3738 | CmdArgs.push_back("-pedantic"); |
| 3739 | Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors); |
| 3740 | Args.AddLastArg(CmdArgs, options::OPT_w); |
| 3741 | |
| 3742 | // Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi} |
| 3743 | // (-ansi is equivalent to -std=c89 or -std=c++98). |
| 3744 | // |
| 3745 | // If a std is supplied, only add -trigraphs if it follows the |
| 3746 | // option. |
| 3747 | bool ImplyVCPPCXXVer = false; |
| 3748 | if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) { |
| 3749 | if (Std->getOption().matches(options::OPT_ansi)) |
| 3750 | if (types::isCXX(InputType)) |
| 3751 | CmdArgs.push_back("-std=c++98"); |
| 3752 | else |
| 3753 | CmdArgs.push_back("-std=c89"); |
| 3754 | else |
| 3755 | Std->render(Args, CmdArgs); |
| 3756 | |
| 3757 | // If -f(no-)trigraphs appears after the language standard flag, honor it. |
| 3758 | if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi, |
| 3759 | options::OPT_ftrigraphs, |
| 3760 | options::OPT_fno_trigraphs)) |
| 3761 | if (A != Std) |
| 3762 | A->render(Args, CmdArgs); |
| 3763 | } else { |
| 3764 | // Honor -std-default. |
| 3765 | // |
| 3766 | // FIXME: Clang doesn't correctly handle -std= when the input language |
| 3767 | // doesn't match. For the time being just ignore this for C++ inputs; |
| 3768 | // eventually we want to do all the standard defaulting here instead of |
| 3769 | // splitting it between the driver and clang -cc1. |
| 3770 | if (!types::isCXX(InputType)) |
| 3771 | Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=", |
| 3772 | /*Joined=*/true); |
| 3773 | else if (IsWindowsMSVC) |
| 3774 | ImplyVCPPCXXVer = true; |
| 3775 | |
| 3776 | Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs, |
| 3777 | options::OPT_fno_trigraphs); |
| 3778 | } |
| 3779 | |
| 3780 | // GCC's behavior for -Wwrite-strings is a bit strange: |
| 3781 | // * In C, this "warning flag" changes the types of string literals from |
| 3782 | // 'char[N]' to 'const char[N]', and thus triggers an unrelated warning |
| 3783 | // for the discarded qualifier. |
| 3784 | // * In C++, this is just a normal warning flag. |
| 3785 | // |
| 3786 | // Implementing this warning correctly in C is hard, so we follow GCC's |
| 3787 | // behavior for now. FIXME: Directly diagnose uses of a string literal as |
| 3788 | // a non-const char* in C, rather than using this crude hack. |
| 3789 | if (!types::isCXX(InputType)) { |
| 3790 | // FIXME: This should behave just like a warning flag, and thus should also |
| 3791 | // respect -Weverything, -Wno-everything, -Werror=write-strings, and so on. |
| 3792 | Arg *WriteStrings = |
| 3793 | Args.getLastArg(options::OPT_Wwrite_strings, |
| 3794 | options::OPT_Wno_write_strings, options::OPT_w); |
| 3795 | if (WriteStrings && |
| 3796 | WriteStrings->getOption().matches(options::OPT_Wwrite_strings)) |
| 3797 | CmdArgs.push_back("-fconst-strings"); |
| 3798 | } |
| 3799 | |
| 3800 | // GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active |
| 3801 | // during C++ compilation, which it is by default. GCC keeps this define even |
| 3802 | // in the presence of '-w', match this behavior bug-for-bug. |
| 3803 | if (types::isCXX(InputType) && |
| 3804 | Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated, |
| 3805 | true)) { |
| 3806 | CmdArgs.push_back("-fdeprecated-macro"); |
| 3807 | } |
| 3808 | |
| 3809 | // Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'. |
| 3810 | if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) { |
| 3811 | if (Asm->getOption().matches(options::OPT_fasm)) |
| 3812 | CmdArgs.push_back("-fgnu-keywords"); |
| 3813 | else |
| 3814 | CmdArgs.push_back("-fno-gnu-keywords"); |
| 3815 | } |
| 3816 | |
| 3817 | if (ShouldDisableDwarfDirectory(Args, getToolChain())) |
| 3818 | CmdArgs.push_back("-fno-dwarf-directory-asm"); |
| 3819 | |
| 3820 | if (ShouldDisableAutolink(Args, getToolChain())) |
| 3821 | CmdArgs.push_back("-fno-autolink"); |
| 3822 | |
| 3823 | // Add in -fdebug-compilation-dir if necessary. |
| 3824 | addDebugCompDirArg(Args, CmdArgs); |
| 3825 | |
| 3826 | for (const Arg *A : Args.filtered(options::OPT_fdebug_prefix_map_EQ)) { |
| 3827 | StringRef Map = A->getValue(); |
| 3828 | if (Map.find('=') == StringRef::npos) |
| 3829 | D.Diag(diag::err_drv_invalid_argument_to_fdebug_prefix_map) << Map; |
| 3830 | else |
| 3831 | CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map)); |
| 3832 | A->claim(); |
| 3833 | } |
| 3834 | |
| 3835 | if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_, |
| 3836 | options::OPT_ftemplate_depth_EQ)) { |
| 3837 | CmdArgs.push_back("-ftemplate-depth"); |
| 3838 | CmdArgs.push_back(A->getValue()); |
| 3839 | } |
| 3840 | |
| 3841 | if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) { |
| 3842 | CmdArgs.push_back("-foperator-arrow-depth"); |
| 3843 | CmdArgs.push_back(A->getValue()); |
| 3844 | } |
| 3845 | |
| 3846 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) { |
| 3847 | CmdArgs.push_back("-fconstexpr-depth"); |
| 3848 | CmdArgs.push_back(A->getValue()); |
| 3849 | } |
| 3850 | |
| 3851 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) { |
| 3852 | CmdArgs.push_back("-fconstexpr-steps"); |
| 3853 | CmdArgs.push_back(A->getValue()); |
| 3854 | } |
| 3855 | |
| 3856 | if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) { |
| 3857 | CmdArgs.push_back("-fbracket-depth"); |
| 3858 | CmdArgs.push_back(A->getValue()); |
| 3859 | } |
| 3860 | |
| 3861 | if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ, |
| 3862 | options::OPT_Wlarge_by_value_copy_def)) { |
| 3863 | if (A->getNumValues()) { |
| 3864 | StringRef bytes = A->getValue(); |
| 3865 | CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes)); |
| 3866 | } else |
| 3867 | CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value |
| 3868 | } |
| 3869 | |
| 3870 | if (Args.hasArg(options::OPT_relocatable_pch)) |
| 3871 | CmdArgs.push_back("-relocatable-pch"); |
| 3872 | |
| 3873 | if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) { |
| 3874 | CmdArgs.push_back("-fconstant-string-class"); |
| 3875 | CmdArgs.push_back(A->getValue()); |
| 3876 | } |
| 3877 | |
| 3878 | if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) { |
| 3879 | CmdArgs.push_back("-ftabstop"); |
| 3880 | CmdArgs.push_back(A->getValue()); |
| 3881 | } |
| 3882 | |
| 3883 | if (Args.hasFlag(options::OPT_fstack_size_section, |
| 3884 | options::OPT_fno_stack_size_section, RawTriple.isPS4())) |
| 3885 | CmdArgs.push_back("-fstack-size-section"); |
| 3886 | |
| 3887 | CmdArgs.push_back("-ferror-limit"); |
| 3888 | if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ)) |
| 3889 | CmdArgs.push_back(A->getValue()); |
| 3890 | else |
| 3891 | CmdArgs.push_back("19"); |
| 3892 | |
| 3893 | if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) { |
| 3894 | CmdArgs.push_back("-fmacro-backtrace-limit"); |
| 3895 | CmdArgs.push_back(A->getValue()); |
| 3896 | } |
| 3897 | |
| 3898 | if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) { |
| 3899 | CmdArgs.push_back("-ftemplate-backtrace-limit"); |
| 3900 | CmdArgs.push_back(A->getValue()); |
| 3901 | } |
| 3902 | |
| 3903 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) { |
| 3904 | CmdArgs.push_back("-fconstexpr-backtrace-limit"); |
| 3905 | CmdArgs.push_back(A->getValue()); |
| 3906 | } |
| 3907 | |
| 3908 | if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) { |
| 3909 | CmdArgs.push_back("-fspell-checking-limit"); |
| 3910 | CmdArgs.push_back(A->getValue()); |
| 3911 | } |
| 3912 | |
| 3913 | // Pass -fmessage-length=. |
| 3914 | CmdArgs.push_back("-fmessage-length"); |
| 3915 | if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) { |
| 3916 | CmdArgs.push_back(A->getValue()); |
| 3917 | } else { |
| 3918 | // If -fmessage-length=N was not specified, determine whether this is a |
| 3919 | // terminal and, if so, implicitly define -fmessage-length appropriately. |
| 3920 | unsigned N = llvm::sys::Process::StandardErrColumns(); |
| 3921 | CmdArgs.push_back(Args.MakeArgString(Twine(N))); |
| 3922 | } |
| 3923 | |
| 3924 | // -fvisibility= and -fvisibility-ms-compat are of a piece. |
| 3925 | if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ, |
| 3926 | options::OPT_fvisibility_ms_compat)) { |
| 3927 | if (A->getOption().matches(options::OPT_fvisibility_EQ)) { |
| 3928 | CmdArgs.push_back("-fvisibility"); |
| 3929 | CmdArgs.push_back(A->getValue()); |
| 3930 | } else { |
| 3931 | assert(A->getOption().matches(options::OPT_fvisibility_ms_compat))(static_cast <bool> (A->getOption().matches(options:: OPT_fvisibility_ms_compat)) ? void (0) : __assert_fail ("A->getOption().matches(options::OPT_fvisibility_ms_compat)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3931, __extension__ __PRETTY_FUNCTION__)); |
| 3932 | CmdArgs.push_back("-fvisibility"); |
| 3933 | CmdArgs.push_back("hidden"); |
| 3934 | CmdArgs.push_back("-ftype-visibility"); |
| 3935 | CmdArgs.push_back("default"); |
| 3936 | } |
| 3937 | } |
| 3938 | |
| 3939 | Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden); |
| 3940 | |
| 3941 | Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ); |
| 3942 | |
| 3943 | // Forward -f (flag) options which we can pass directly. |
| 3944 | Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls); |
| 3945 | Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions); |
| 3946 | Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names); |
| 3947 | Args.AddLastArg(CmdArgs, options::OPT_femulated_tls, |
| 3948 | options::OPT_fno_emulated_tls); |
| 3949 | |
| 3950 | // AltiVec-like language extensions aren't relevant for assembling. |
| 3951 | if (!isa<PreprocessJobAction>(JA) || Output.getType() != types::TY_PP_Asm) |
| 3952 | Args.AddLastArg(CmdArgs, options::OPT_fzvector); |
| 3953 | |
| 3954 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree); |
| 3955 | Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type); |
| 3956 | |
| 3957 | // Forward flags for OpenMP. We don't do this if the current action is an |
| 3958 | // device offloading action other than OpenMP. |
| 3959 | if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, |
| 3960 | options::OPT_fno_openmp, false) && |
| 3961 | (JA.isDeviceOffloading(Action::OFK_None) || |
| 3962 | JA.isDeviceOffloading(Action::OFK_OpenMP))) { |
| 3963 | switch (D.getOpenMPRuntime(Args)) { |
| 3964 | case Driver::OMPRT_OMP: |
| 3965 | case Driver::OMPRT_IOMP5: |
| 3966 | // Clang can generate useful OpenMP code for these two runtime libraries. |
| 3967 | CmdArgs.push_back("-fopenmp"); |
| 3968 | |
| 3969 | // If no option regarding the use of TLS in OpenMP codegeneration is |
| 3970 | // given, decide a default based on the target. Otherwise rely on the |
| 3971 | // options and pass the right information to the frontend. |
| 3972 | if (!Args.hasFlag(options::OPT_fopenmp_use_tls, |
| 3973 | options::OPT_fnoopenmp_use_tls, /*Default=*/true)) |
| 3974 | CmdArgs.push_back("-fnoopenmp-use-tls"); |
| 3975 | Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); |
| 3976 | |
| 3977 | // When in OpenMP offloading mode with NVPTX target, forward |
| 3978 | // cuda-mode flag |
| 3979 | Args.AddLastArg(CmdArgs, options::OPT_fopenmp_cuda_mode, |
| 3980 | options::OPT_fno_openmp_cuda_mode); |
| 3981 | break; |
| 3982 | default: |
| 3983 | // By default, if Clang doesn't know how to generate useful OpenMP code |
| 3984 | // for a specific runtime library, we just don't pass the '-fopenmp' flag |
| 3985 | // down to the actual compilation. |
| 3986 | // FIXME: It would be better to have a mode which *only* omits IR |
| 3987 | // generation based on the OpenMP support so that we get consistent |
| 3988 | // semantic analysis, etc. |
| 3989 | break; |
| 3990 | } |
| 3991 | } else { |
| 3992 | Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd, |
| 3993 | options::OPT_fno_openmp_simd); |
| 3994 | Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); |
| 3995 | } |
| 3996 | |
| 3997 | const SanitizerArgs &Sanitize = getToolChain().getSanitizerArgs(); |
| 3998 | Sanitize.addArgs(getToolChain(), Args, CmdArgs, InputType); |
| 3999 | |
| 4000 | const XRayArgs &XRay = getToolChain().getXRayArgs(); |
| 4001 | XRay.addArgs(getToolChain(), Args, CmdArgs, InputType); |
| 4002 | |
| 4003 | if (getToolChain().SupportsProfiling()) |
| 4004 | Args.AddLastArg(CmdArgs, options::OPT_pg); |
| 4005 | |
| 4006 | if (getToolChain().SupportsProfiling()) |
| 4007 | Args.AddLastArg(CmdArgs, options::OPT_mfentry); |
| 4008 | |
| 4009 | // -flax-vector-conversions is default. |
| 4010 | if (!Args.hasFlag(options::OPT_flax_vector_conversions, |
| 4011 | options::OPT_fno_lax_vector_conversions)) |
| 4012 | CmdArgs.push_back("-fno-lax-vector-conversions"); |
| 4013 | |
| 4014 | if (Args.getLastArg(options::OPT_fapple_kext) || |
| 4015 | (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType))) |
| 4016 | CmdArgs.push_back("-fapple-kext"); |
| 4017 | |
| 4018 | Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch); |
| 4019 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info); |
| 4020 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits); |
| 4021 | Args.AddLastArg(CmdArgs, options::OPT_ftime_report); |
| 4022 | Args.AddLastArg(CmdArgs, options::OPT_ftrapv); |
| 4023 | |
| 4024 | if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) { |
| 4025 | CmdArgs.push_back("-ftrapv-handler"); |
| 4026 | CmdArgs.push_back(A->getValue()); |
| 4027 | } |
| 4028 | |
| 4029 | Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ); |
| 4030 | |
| 4031 | // -fno-strict-overflow implies -fwrapv if it isn't disabled, but |
| 4032 | // -fstrict-overflow won't turn off an explicitly enabled -fwrapv. |
| 4033 | if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) { |
| 4034 | if (A->getOption().matches(options::OPT_fwrapv)) |
| 4035 | CmdArgs.push_back("-fwrapv"); |
| 4036 | } else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow, |
| 4037 | options::OPT_fno_strict_overflow)) { |
| 4038 | if (A->getOption().matches(options::OPT_fno_strict_overflow)) |
| 4039 | CmdArgs.push_back("-fwrapv"); |
| 4040 | } |
| 4041 | |
| 4042 | if (Arg *A = Args.getLastArg(options::OPT_freroll_loops, |
| 4043 | options::OPT_fno_reroll_loops)) |
| 4044 | if (A->getOption().matches(options::OPT_freroll_loops)) |
| 4045 | CmdArgs.push_back("-freroll-loops"); |
| 4046 | |
| 4047 | Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings); |
| 4048 | Args.AddLastArg(CmdArgs, options::OPT_funroll_loops, |
| 4049 | options::OPT_fno_unroll_loops); |
| 4050 | |
| 4051 | Args.AddLastArg(CmdArgs, options::OPT_pthread); |
| 4052 | |
| 4053 | RenderSSPOptions(getToolChain(), Args, CmdArgs, KernelOrKext); |
| 4054 | |
| 4055 | // Translate -mstackrealign |
| 4056 | if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign, |
| 4057 | false)) |
| 4058 | CmdArgs.push_back(Args.MakeArgString("-mstackrealign")); |
| 4059 | |
| 4060 | if (Args.hasArg(options::OPT_mstack_alignment)) { |
| 4061 | StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment); |
| 4062 | CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment)); |
| 4063 | } |
| 4064 | |
| 4065 | if (Args.hasArg(options::OPT_mstack_probe_size)) { |
| 4066 | StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size); |
| 4067 | |
| 4068 | if (!Size.empty()) |
| 4069 | CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size)); |
| 4070 | else |
| 4071 | CmdArgs.push_back("-mstack-probe-size=0"); |
| 4072 | } |
| 4073 | |
| 4074 | if (!Args.hasFlag(options::OPT_mstack_arg_probe, |
| 4075 | options::OPT_mno_stack_arg_probe, true)) |
| 4076 | CmdArgs.push_back(Args.MakeArgString("-mno-stack-arg-probe")); |
| 4077 | |
| 4078 | if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it, |
| 4079 | options::OPT_mno_restrict_it)) { |
| 4080 | if (A->getOption().matches(options::OPT_mrestrict_it)) { |
| 4081 | CmdArgs.push_back("-backend-option"); |
| 4082 | CmdArgs.push_back("-arm-restrict-it"); |
| 4083 | } else { |
| 4084 | CmdArgs.push_back("-backend-option"); |
| 4085 | CmdArgs.push_back("-arm-no-restrict-it"); |
| 4086 | } |
| 4087 | } else if (Triple.isOSWindows() && |
| 4088 | (Triple.getArch() == llvm::Triple::arm || |
| 4089 | Triple.getArch() == llvm::Triple::thumb)) { |
| 4090 | // Windows on ARM expects restricted IT blocks |
| 4091 | CmdArgs.push_back("-backend-option"); |
| 4092 | CmdArgs.push_back("-arm-restrict-it"); |
| 4093 | } |
| 4094 | |
| 4095 | // Forward -cl options to -cc1 |
| 4096 | RenderOpenCLOptions(Args, CmdArgs); |
| 4097 | |
| 4098 | if (Arg *A = Args.getLastArg(options::OPT_fcf_protection_EQ)) { |
| 4099 | CmdArgs.push_back( |
| 4100 | Args.MakeArgString(Twine("-fcf-protection=") + A->getValue())); |
| 4101 | } |
| 4102 | |
| 4103 | // Forward -f options with positive and negative forms; we translate |
| 4104 | // these by hand. |
| 4105 | if (Arg *A = getLastProfileSampleUseArg(Args)) { |
| 4106 | StringRef fname = A->getValue(); |
| 4107 | if (!llvm::sys::fs::exists(fname)) |
| 4108 | D.Diag(diag::err_drv_no_such_file) << fname; |
| 4109 | else |
| 4110 | A->render(Args, CmdArgs); |
| 4111 | } |
| 4112 | |
| 4113 | RenderBuiltinOptions(getToolChain(), RawTriple, Args, CmdArgs); |
| 4114 | |
| 4115 | if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, |
| 4116 | options::OPT_fno_assume_sane_operator_new)) |
| 4117 | CmdArgs.push_back("-fno-assume-sane-operator-new"); |
| 4118 | |
| 4119 | // -fblocks=0 is default. |
| 4120 | if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks, |
| 4121 | getToolChain().IsBlocksDefault()) || |
| 4122 | (Args.hasArg(options::OPT_fgnu_runtime) && |
| 4123 | Args.hasArg(options::OPT_fobjc_nonfragile_abi) && |
| 4124 | !Args.hasArg(options::OPT_fno_blocks))) { |
| 4125 | CmdArgs.push_back("-fblocks"); |
| 4126 | |
| 4127 | if (!Args.hasArg(options::OPT_fgnu_runtime) && |
| 4128 | !getToolChain().hasBlocksRuntime()) |
| 4129 | CmdArgs.push_back("-fblocks-runtime-optional"); |
| 4130 | } |
| 4131 | |
| 4132 | // -fencode-extended-block-signature=1 is default. |
| 4133 | if (getToolChain().IsEncodeExtendedBlockSignatureDefault()) |
| 4134 | CmdArgs.push_back("-fencode-extended-block-signature"); |
| 4135 | |
| 4136 | if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts, |
| 4137 | false) && |
| 4138 | types::isCXX(InputType)) { |
| 4139 | CmdArgs.push_back("-fcoroutines-ts"); |
| 4140 | } |
| 4141 | |
| 4142 | Args.AddLastArg(CmdArgs, options::OPT_fdouble_square_bracket_attributes, |
| 4143 | options::OPT_fno_double_square_bracket_attributes); |
| 4144 | |
| 4145 | bool HaveModules = false; |
| 4146 | RenderModulesOptions(C, D, Args, Input, Output, CmdArgs, HaveModules); |
| 4147 | |
| 4148 | // -faccess-control is default. |
| 4149 | if (Args.hasFlag(options::OPT_fno_access_control, |
| 4150 | options::OPT_faccess_control, false)) |
| 4151 | CmdArgs.push_back("-fno-access-control"); |
| 4152 | |
| 4153 | // -felide-constructors is the default. |
| 4154 | if (Args.hasFlag(options::OPT_fno_elide_constructors, |
| 4155 | options::OPT_felide_constructors, false)) |
| 4156 | CmdArgs.push_back("-fno-elide-constructors"); |
| 4157 | |
| 4158 | ToolChain::RTTIMode RTTIMode = getToolChain().getRTTIMode(); |
| 4159 | |
| 4160 | if (KernelOrKext || (types::isCXX(InputType) && |
| 4161 | (RTTIMode == ToolChain::RM_DisabledExplicitly || |
| 4162 | RTTIMode == ToolChain::RM_DisabledImplicitly))) |
| 4163 | CmdArgs.push_back("-fno-rtti"); |
| 4164 | |
| 4165 | // -fshort-enums=0 is default for all architectures except Hexagon. |
| 4166 | if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums, |
| 4167 | getToolChain().getArch() == llvm::Triple::hexagon)) |
| 4168 | CmdArgs.push_back("-fshort-enums"); |
| 4169 | |
| 4170 | RenderCharacterOptions(Args, AuxTriple ? *AuxTriple : RawTriple, CmdArgs); |
| 4171 | |
| 4172 | // -fuse-cxa-atexit is default. |
| 4173 | if (!Args.hasFlag( |
| 4174 | options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit, |
| 4175 | !RawTriple.isOSWindows() && |
| 4176 | RawTriple.getOS() != llvm::Triple::Solaris && |
| 4177 | getToolChain().getArch() != llvm::Triple::hexagon && |
| 4178 | getToolChain().getArch() != llvm::Triple::xcore && |
| 4179 | ((RawTriple.getVendor() != llvm::Triple::MipsTechnologies) || |
| 4180 | RawTriple.hasEnvironment())) || |
| 4181 | KernelOrKext) |
| 4182 | CmdArgs.push_back("-fno-use-cxa-atexit"); |
| 4183 | |
| 4184 | // -fms-extensions=0 is default. |
| 4185 | if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions, |
| 4186 | IsWindowsMSVC)) |
| 4187 | CmdArgs.push_back("-fms-extensions"); |
| 4188 | |
| 4189 | // -fno-use-line-directives is default. |
| 4190 | if (Args.hasFlag(options::OPT_fuse_line_directives, |
| 4191 | options::OPT_fno_use_line_directives, false)) |
| 4192 | CmdArgs.push_back("-fuse-line-directives"); |
| 4193 | |
| 4194 | // -fms-compatibility=0 is default. |
| 4195 | if (Args.hasFlag(options::OPT_fms_compatibility, |
| 4196 | options::OPT_fno_ms_compatibility, |
| 4197 | (IsWindowsMSVC && |
| 4198 | Args.hasFlag(options::OPT_fms_extensions, |
| 4199 | options::OPT_fno_ms_extensions, true)))) |
| 4200 | CmdArgs.push_back("-fms-compatibility"); |
| 4201 | |
| 4202 | VersionTuple MSVT = getToolChain().computeMSVCVersion(&D, Args); |
| 4203 | if (!MSVT.empty()) |
| 4204 | CmdArgs.push_back( |
| 4205 | Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString())); |
| 4206 | |
| 4207 | bool IsMSVC2015Compatible = MSVT.getMajor() >= 19; |
| 4208 | if (ImplyVCPPCXXVer) { |
| 4209 | StringRef LanguageStandard; |
| 4210 | if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) { |
| 4211 | LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue()) |
| 4212 | .Case("c++14", "-std=c++14") |
| 4213 | .Case("c++17", "-std=c++17") |
| 4214 | .Case("c++latest", "-std=c++2a") |
| 4215 | .Default(""); |
| 4216 | if (LanguageStandard.empty()) |
| 4217 | D.Diag(clang::diag::warn_drv_unused_argument) |
| 4218 | << StdArg->getAsString(Args); |
| 4219 | } |
| 4220 | |
| 4221 | if (LanguageStandard.empty()) { |
| 4222 | if (IsMSVC2015Compatible) |
| 4223 | LanguageStandard = "-std=c++14"; |
| 4224 | else |
| 4225 | LanguageStandard = "-std=c++11"; |
| 4226 | } |
| 4227 | |
| 4228 | CmdArgs.push_back(LanguageStandard.data()); |
| 4229 | } |
| 4230 | |
| 4231 | // -fno-borland-extensions is default. |
| 4232 | if (Args.hasFlag(options::OPT_fborland_extensions, |
| 4233 | options::OPT_fno_borland_extensions, false)) |
| 4234 | CmdArgs.push_back("-fborland-extensions"); |
| 4235 | |
| 4236 | // -fno-declspec is default, except for PS4. |
| 4237 | if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec, |
| 4238 | RawTriple.isPS4())) |
| 4239 | CmdArgs.push_back("-fdeclspec"); |
| 4240 | else if (Args.hasArg(options::OPT_fno_declspec)) |
| 4241 | CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec. |
| 4242 | |
| 4243 | // -fthreadsafe-static is default, except for MSVC compatibility versions less |
| 4244 | // than 19. |
| 4245 | if (!Args.hasFlag(options::OPT_fthreadsafe_statics, |
| 4246 | options::OPT_fno_threadsafe_statics, |
| 4247 | !IsWindowsMSVC || IsMSVC2015Compatible)) |
| 4248 | CmdArgs.push_back("-fno-threadsafe-statics"); |
| 4249 | |
| 4250 | // -fno-delayed-template-parsing is default, except when targeting MSVC. |
| 4251 | // Many old Windows SDK versions require this to parse. |
| 4252 | // FIXME: MSVC introduced /Zc:twoPhase- to disable this behavior in their |
| 4253 | // compiler. We should be able to disable this by default at some point. |
| 4254 | if (Args.hasFlag(options::OPT_fdelayed_template_parsing, |
| 4255 | options::OPT_fno_delayed_template_parsing, IsWindowsMSVC)) |
| 4256 | CmdArgs.push_back("-fdelayed-template-parsing"); |
| 4257 | |
| 4258 | // -fgnu-keywords default varies depending on language; only pass if |
| 4259 | // specified. |
| 4260 | if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords, |
| 4261 | options::OPT_fno_gnu_keywords)) |
| 4262 | A->render(Args, CmdArgs); |
| 4263 | |
| 4264 | if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline, |
| 4265 | false)) |
| 4266 | CmdArgs.push_back("-fgnu89-inline"); |
| 4267 | |
| 4268 | if (Args.hasArg(options::OPT_fno_inline)) |
| 4269 | CmdArgs.push_back("-fno-inline"); |
| 4270 | |
| 4271 | if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, |
| 4272 | options::OPT_finline_hint_functions, |
| 4273 | options::OPT_fno_inline_functions)) |
| 4274 | InlineArg->render(Args, CmdArgs); |
| 4275 | |
| 4276 | Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager, |
| 4277 | options::OPT_fno_experimental_new_pass_manager); |
| 4278 | |
| 4279 | ObjCRuntime Runtime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind); |
| 4280 | RenderObjCOptions(getToolChain(), D, RawTriple, Args, Runtime, |
| 4281 | rewriteKind != RK_None, Input, CmdArgs); |
| 4282 | |
| 4283 | if (Args.hasFlag(options::OPT_fapplication_extension, |
| 4284 | options::OPT_fno_application_extension, false)) |
| 4285 | CmdArgs.push_back("-fapplication-extension"); |
| 4286 | |
| 4287 | // Handle GCC-style exception args. |
| 4288 | if (!C.getDriver().IsCLMode()) |
| 4289 | addExceptionArgs(Args, InputType, getToolChain(), KernelOrKext, Runtime, |
| 4290 | CmdArgs); |
| 4291 | |
| 4292 | // Handle exception personalities |
| 4293 | Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, |
| 4294 | options::OPT_fseh_exceptions, |
| 4295 | options::OPT_fdwarf_exceptions); |
| 4296 | if (A) { |
| 4297 | const Option &Opt = A->getOption(); |
| 4298 | if (Opt.matches(options::OPT_fsjlj_exceptions)) |
| 4299 | CmdArgs.push_back("-fsjlj-exceptions"); |
| 4300 | if (Opt.matches(options::OPT_fseh_exceptions)) |
| 4301 | CmdArgs.push_back("-fseh-exceptions"); |
| 4302 | if (Opt.matches(options::OPT_fdwarf_exceptions)) |
| 4303 | CmdArgs.push_back("-fdwarf-exceptions"); |
| 4304 | } else { |
| 4305 | switch (getToolChain().GetExceptionModel(Args)) { |
| 4306 | default: |
| 4307 | break; |
| 4308 | case llvm::ExceptionHandling::DwarfCFI: |
| 4309 | CmdArgs.push_back("-fdwarf-exceptions"); |
| 4310 | break; |
| 4311 | case llvm::ExceptionHandling::SjLj: |
| 4312 | CmdArgs.push_back("-fsjlj-exceptions"); |
| 4313 | break; |
| 4314 | case llvm::ExceptionHandling::WinEH: |
| 4315 | CmdArgs.push_back("-fseh-exceptions"); |
| 4316 | break; |
| 4317 | } |
| 4318 | } |
| 4319 | |
| 4320 | // C++ "sane" operator new. |
| 4321 | if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, |
| 4322 | options::OPT_fno_assume_sane_operator_new)) |
| 4323 | CmdArgs.push_back("-fno-assume-sane-operator-new"); |
| 4324 | |
| 4325 | // -frelaxed-template-template-args is off by default, as it is a severe |
| 4326 | // breaking change until a corresponding change to template partial ordering |
| 4327 | // is provided. |
| 4328 | if (Args.hasFlag(options::OPT_frelaxed_template_template_args, |
| 4329 | options::OPT_fno_relaxed_template_template_args, false)) |
| 4330 | CmdArgs.push_back("-frelaxed-template-template-args"); |
| 4331 | |
| 4332 | // -fsized-deallocation is off by default, as it is an ABI-breaking change for |
| 4333 | // most platforms. |
| 4334 | if (Args.hasFlag(options::OPT_fsized_deallocation, |
| 4335 | options::OPT_fno_sized_deallocation, false)) |
| 4336 | CmdArgs.push_back("-fsized-deallocation"); |
| 4337 | |
| 4338 | // -faligned-allocation is on by default in C++17 onwards and otherwise off |
| 4339 | // by default. |
| 4340 | if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation, |
| 4341 | options::OPT_fno_aligned_allocation, |
| 4342 | options::OPT_faligned_new_EQ)) { |
| 4343 | if (A->getOption().matches(options::OPT_fno_aligned_allocation)) |
| 4344 | CmdArgs.push_back("-fno-aligned-allocation"); |
| 4345 | else |
| 4346 | CmdArgs.push_back("-faligned-allocation"); |
| 4347 | } |
| 4348 | |
| 4349 | // The default new alignment can be specified using a dedicated option or via |
| 4350 | // a GCC-compatible option that also turns on aligned allocation. |
| 4351 | if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ, |
| 4352 | options::OPT_faligned_new_EQ)) |
| 4353 | CmdArgs.push_back( |
| 4354 | Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue())); |
| 4355 | |
| 4356 | // -fconstant-cfstrings is default, and may be subject to argument translation |
| 4357 | // on Darwin. |
| 4358 | if (!Args.hasFlag(options::OPT_fconstant_cfstrings, |
| 4359 | options::OPT_fno_constant_cfstrings) || |
| 4360 | !Args.hasFlag(options::OPT_mconstant_cfstrings, |
| 4361 | options::OPT_mno_constant_cfstrings)) |
| 4362 | CmdArgs.push_back("-fno-constant-cfstrings"); |
| 4363 | |
| 4364 | // -fno-pascal-strings is default, only pass non-default. |
| 4365 | if (Args.hasFlag(options::OPT_fpascal_strings, |
| 4366 | options::OPT_fno_pascal_strings, false)) |
| 4367 | CmdArgs.push_back("-fpascal-strings"); |
| 4368 | |
| 4369 | // Honor -fpack-struct= and -fpack-struct, if given. Note that |
| 4370 | // -fno-pack-struct doesn't apply to -fpack-struct=. |
| 4371 | if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) { |
| 4372 | std::string PackStructStr = "-fpack-struct="; |
| 4373 | PackStructStr += A->getValue(); |
| 4374 | CmdArgs.push_back(Args.MakeArgString(PackStructStr)); |
| 4375 | } else if (Args.hasFlag(options::OPT_fpack_struct, |
| 4376 | options::OPT_fno_pack_struct, false)) { |
| 4377 | CmdArgs.push_back("-fpack-struct=1"); |
| 4378 | } |
| 4379 | |
| 4380 | // Handle -fmax-type-align=N and -fno-type-align |
| 4381 | bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align); |
| 4382 | if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) { |
| 4383 | if (!SkipMaxTypeAlign) { |
| 4384 | std::string MaxTypeAlignStr = "-fmax-type-align="; |
| 4385 | MaxTypeAlignStr += A->getValue(); |
| 4386 | CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); |
| 4387 | } |
| 4388 | } else if (RawTriple.isOSDarwin()) { |
| 4389 | if (!SkipMaxTypeAlign) { |
| 4390 | std::string MaxTypeAlignStr = "-fmax-type-align=16"; |
| 4391 | CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); |
| 4392 | } |
| 4393 | } |
| 4394 | |
| 4395 | // -fcommon is the default unless compiling kernel code or the target says so |
| 4396 | bool NoCommonDefault = KernelOrKext || isNoCommonDefault(RawTriple); |
| 4397 | if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common, |
| 4398 | !NoCommonDefault)) |
| 4399 | CmdArgs.push_back("-fno-common"); |
| 4400 | |
| 4401 | // -fsigned-bitfields is default, and clang doesn't yet support |
| 4402 | // -funsigned-bitfields. |
| 4403 | if (!Args.hasFlag(options::OPT_fsigned_bitfields, |
| 4404 | options::OPT_funsigned_bitfields)) |
| 4405 | D.Diag(diag::warn_drv_clang_unsupported) |
| 4406 | << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args); |
| 4407 | |
| 4408 | // -fsigned-bitfields is default, and clang doesn't support -fno-for-scope. |
| 4409 | if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope)) |
| 4410 | D.Diag(diag::err_drv_clang_unsupported) |
| 4411 | << Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args); |
| 4412 | |
| 4413 | // -finput_charset=UTF-8 is default. Reject others |
| 4414 | if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) { |
| 4415 | StringRef value = inputCharset->getValue(); |
| 4416 | if (!value.equals_lower("utf-8")) |
| 4417 | D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args) |
| 4418 | << value; |
| 4419 | } |
| 4420 | |
| 4421 | // -fexec_charset=UTF-8 is default. Reject others |
| 4422 | if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) { |
| 4423 | StringRef value = execCharset->getValue(); |
| 4424 | if (!value.equals_lower("utf-8")) |
| 4425 | D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args) |
| 4426 | << value; |
| 4427 | } |
| 4428 | |
| 4429 | RenderDiagnosticsOptions(D, Args, CmdArgs); |
| 4430 | |
| 4431 | // -fno-asm-blocks is default. |
| 4432 | if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks, |
| 4433 | false)) |
| 4434 | CmdArgs.push_back("-fasm-blocks"); |
| 4435 | |
| 4436 | // -fgnu-inline-asm is default. |
| 4437 | if (!Args.hasFlag(options::OPT_fgnu_inline_asm, |
| 4438 | options::OPT_fno_gnu_inline_asm, true)) |
| 4439 | CmdArgs.push_back("-fno-gnu-inline-asm"); |
| 4440 | |
| 4441 | // Enable vectorization per default according to the optimization level |
| 4442 | // selected. For optimization levels that want vectorization we use the alias |
| 4443 | // option to simplify the hasFlag logic. |
| 4444 | bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false); |
| 4445 | OptSpecifier VectorizeAliasOption = |
| 4446 | EnableVec ? options::OPT_O_Group : options::OPT_fvectorize; |
| 4447 | if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption, |
| 4448 | options::OPT_fno_vectorize, EnableVec)) |
| 4449 | CmdArgs.push_back("-vectorize-loops"); |
| 4450 | |
| 4451 | // -fslp-vectorize is enabled based on the optimization level selected. |
| 4452 | bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true); |
| 4453 | OptSpecifier SLPVectAliasOption = |
| 4454 | EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize; |
| 4455 | if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption, |
| 4456 | options::OPT_fno_slp_vectorize, EnableSLPVec)) |
| 4457 | CmdArgs.push_back("-vectorize-slp"); |
| 4458 | |
| 4459 | ParseMPreferVectorWidth(D, Args, CmdArgs); |
| 4460 | |
| 4461 | if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ)) |
| 4462 | A->render(Args, CmdArgs); |
| 4463 | |
| 4464 | if (Arg *A = Args.getLastArg( |
| 4465 | options::OPT_fsanitize_undefined_strip_path_components_EQ)) |
| 4466 | A->render(Args, CmdArgs); |
| 4467 | |
| 4468 | // -fdollars-in-identifiers default varies depending on platform and |
| 4469 | // language; only pass if specified. |
| 4470 | if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers, |
| 4471 | options::OPT_fno_dollars_in_identifiers)) { |
| 4472 | if (A->getOption().matches(options::OPT_fdollars_in_identifiers)) |
| 4473 | CmdArgs.push_back("-fdollars-in-identifiers"); |
| 4474 | else |
| 4475 | CmdArgs.push_back("-fno-dollars-in-identifiers"); |
| 4476 | } |
| 4477 | |
| 4478 | // -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for |
| 4479 | // practical purposes. |
| 4480 | if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time, |
| 4481 | options::OPT_fno_unit_at_a_time)) { |
| 4482 | if (A->getOption().matches(options::OPT_fno_unit_at_a_time)) |
| 4483 | D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args); |
| 4484 | } |
| 4485 | |
| 4486 | if (Args.hasFlag(options::OPT_fapple_pragma_pack, |
| 4487 | options::OPT_fno_apple_pragma_pack, false)) |
| 4488 | CmdArgs.push_back("-fapple-pragma-pack"); |
| 4489 | |
| 4490 | if (Args.hasFlag(options::OPT_fsave_optimization_record, |
| 4491 | options::OPT_foptimization_record_file_EQ, |
| 4492 | options::OPT_fno_save_optimization_record, false)) { |
| 4493 | CmdArgs.push_back("-opt-record-file"); |
| 4494 | |
| 4495 | const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ); |
| 4496 | if (A) { |
| 4497 | CmdArgs.push_back(A->getValue()); |
| 4498 | } else { |
| 4499 | SmallString<128> F; |
| 4500 | |
| 4501 | if (Args.hasArg(options::OPT_c) || Args.hasArg(options::OPT_S)) { |
| 4502 | if (Arg *FinalOutput = Args.getLastArg(options::OPT_o)) |
| 4503 | F = FinalOutput->getValue(); |
| 4504 | } |
| 4505 | |
| 4506 | if (F.empty()) { |
| 4507 | // Use the input filename. |
| 4508 | F = llvm::sys::path::stem(Input.getBaseInput()); |
| 4509 | |
| 4510 | // If we're compiling for an offload architecture (i.e. a CUDA device), |
| 4511 | // we need to make the file name for the device compilation different |
| 4512 | // from the host compilation. |
| 4513 | if (!JA.isDeviceOffloading(Action::OFK_None) && |
| 4514 | !JA.isDeviceOffloading(Action::OFK_Host)) { |
| 4515 | llvm::sys::path::replace_extension(F, ""); |
| 4516 | F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(), |
| 4517 | Triple.normalize()); |
| 4518 | F += "-"; |
| 4519 | F += JA.getOffloadingArch(); |
| 4520 | } |
| 4521 | } |
| 4522 | |
| 4523 | llvm::sys::path::replace_extension(F, "opt.yaml"); |
| 4524 | CmdArgs.push_back(Args.MakeArgString(F)); |
| 4525 | } |
| 4526 | } |
| 4527 | |
| 4528 | bool RewriteImports = Args.hasFlag(options::OPT_frewrite_imports, |
| 4529 | options::OPT_fno_rewrite_imports, false); |
| 4530 | if (RewriteImports) |
| 4531 | CmdArgs.push_back("-frewrite-imports"); |
| 4532 | |
| 4533 | // Enable rewrite includes if the user's asked for it or if we're generating |
| 4534 | // diagnostics. |
| 4535 | // TODO: Once -module-dependency-dir works with -frewrite-includes it'd be |
| 4536 | // nice to enable this when doing a crashdump for modules as well. |
| 4537 | if (Args.hasFlag(options::OPT_frewrite_includes, |
| 4538 | options::OPT_fno_rewrite_includes, false) || |
| 4539 | (C.isForDiagnostics() && (RewriteImports || !HaveModules))) |
| 4540 | CmdArgs.push_back("-frewrite-includes"); |
| 4541 | |
| 4542 | // Only allow -traditional or -traditional-cpp outside in preprocessing modes. |
| 4543 | if (Arg *A = Args.getLastArg(options::OPT_traditional, |
| 4544 | options::OPT_traditional_cpp)) { |
| 4545 | if (isa<PreprocessJobAction>(JA)) |
| 4546 | CmdArgs.push_back("-traditional-cpp"); |
| 4547 | else |
| 4548 | D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); |
| 4549 | } |
| 4550 | |
| 4551 | Args.AddLastArg(CmdArgs, options::OPT_dM); |
| 4552 | Args.AddLastArg(CmdArgs, options::OPT_dD); |
| 4553 | |
| 4554 | // Handle serialized diagnostics. |
| 4555 | if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) { |
| 4556 | CmdArgs.push_back("-serialize-diagnostic-file"); |
| 4557 | CmdArgs.push_back(Args.MakeArgString(A->getValue())); |
| 4558 | } |
| 4559 | |
| 4560 | if (Args.hasArg(options::OPT_fretain_comments_from_system_headers)) |
| 4561 | CmdArgs.push_back("-fretain-comments-from-system-headers"); |
| 4562 | |
| 4563 | // Forward -fcomment-block-commands to -cc1. |
| 4564 | Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands); |
| 4565 | // Forward -fparse-all-comments to -cc1. |
| 4566 | Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments); |
| 4567 | |
| 4568 | // Turn -fplugin=name.so into -load name.so |
| 4569 | for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) { |
| 4570 | CmdArgs.push_back("-load"); |
| 4571 | CmdArgs.push_back(A->getValue()); |
| 4572 | A->claim(); |
| 4573 | } |
| 4574 | |
| 4575 | // Setup statistics file output. |
| 4576 | if (const Arg *A = Args.getLastArg(options::OPT_save_stats_EQ)) { |
| 4577 | StringRef SaveStats = A->getValue(); |
| 4578 | |
| 4579 | SmallString<128> StatsFile; |
| 4580 | bool DoSaveStats = false; |
| 4581 | if (SaveStats == "obj") { |
| 4582 | if (Output.isFilename()) { |
| 4583 | StatsFile.assign(Output.getFilename()); |
| 4584 | llvm::sys::path::remove_filename(StatsFile); |
| 4585 | } |
| 4586 | DoSaveStats = true; |
| 4587 | } else if (SaveStats == "cwd") { |
| 4588 | DoSaveStats = true; |
| 4589 | } else { |
| 4590 | D.Diag(diag::err_drv_invalid_value) << A->getAsString(Args) << SaveStats; |
| 4591 | } |
| 4592 | |
| 4593 | if (DoSaveStats) { |
| 4594 | StringRef BaseName = llvm::sys::path::filename(Input.getBaseInput()); |
| 4595 | llvm::sys::path::append(StatsFile, BaseName); |
| 4596 | llvm::sys::path::replace_extension(StatsFile, "stats"); |
| 4597 | CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + |
| 4598 | StatsFile)); |
| 4599 | } |
| 4600 | } |
| 4601 | |
| 4602 | // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option |
| 4603 | // parser. |
| 4604 | // -finclude-default-header flag is for preprocessor, |
| 4605 | // do not pass it to other cc1 commands when save-temps is enabled |
| 4606 | if (C.getDriver().isSaveTempsEnabled() && |
| 4607 | !isa<PreprocessJobAction>(JA)) { |
| 4608 | for (auto Arg : Args.filtered(options::OPT_Xclang)) { |
| 4609 | Arg->claim(); |
| 4610 | if (StringRef(Arg->getValue()) != "-finclude-default-header") |
| 4611 | CmdArgs.push_back(Arg->getValue()); |
| 4612 | } |
| 4613 | } |
| 4614 | else { |
| 4615 | Args.AddAllArgValues(CmdArgs, options::OPT_Xclang); |
| 4616 | } |
| 4617 | for (const Arg *A : Args.filtered(options::OPT_mllvm)) { |
| 4618 | A->claim(); |
| 4619 | |
| 4620 | // We translate this by hand to the -cc1 argument, since nightly test uses |
| 4621 | // it and developers have been trained to spell it with -mllvm. Both |
| 4622 | // spellings are now deprecated and should be removed. |
| 4623 | if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") { |
| 4624 | CmdArgs.push_back("-disable-llvm-optzns"); |
| 4625 | } else { |
| 4626 | A->render(Args, CmdArgs); |
| 4627 | } |
| 4628 | } |
| 4629 | |
| 4630 | // With -save-temps, we want to save the unoptimized bitcode output from the |
| 4631 | // CompileJobAction, use -disable-llvm-passes to get pristine IR generated |
| 4632 | // by the frontend. |
| 4633 | // When -fembed-bitcode is enabled, optimized bitcode is emitted because it |
| 4634 | // has slightly different breakdown between stages. |
| 4635 | // FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of |
| 4636 | // pristine IR generated by the frontend. Ideally, a new compile action should |
| 4637 | // be added so both IR can be captured. |
| 4638 | if (C.getDriver().isSaveTempsEnabled() && |
| 4639 | !(C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO()) && |
| 4640 | isa<CompileJobAction>(JA)) |
| 4641 | CmdArgs.push_back("-disable-llvm-passes"); |
| 4642 | |
| 4643 | if (Output.getType() == types::TY_Dependencies) { |
| 4644 | // Handled with other dependency code. |
| 4645 | } else if (Output.isFilename()) { |
| 4646 | CmdArgs.push_back("-o"); |
| 4647 | CmdArgs.push_back(Output.getFilename()); |
| 4648 | } else { |
| 4649 | assert(Output.isNothing() && "Invalid output.")(static_cast <bool> (Output.isNothing() && "Invalid output." ) ? void (0) : __assert_fail ("Output.isNothing() && \"Invalid output.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4649, __extension__ __PRETTY_FUNCTION__)); |
| 4650 | } |
| 4651 | |
| 4652 | addDashXForInput(Args, Input, CmdArgs); |
| 4653 | |
| 4654 | if (Input.isFilename()) |
| 4655 | CmdArgs.push_back(Input.getFilename()); |
| 4656 | else |
| 4657 | Input.getInputArg().renderAsInput(Args, CmdArgs); |
| 4658 | |
| 4659 | Args.AddAllArgs(CmdArgs, options::OPT_undef); |
| 4660 | |
| 4661 | const char *Exec = D.getClangProgramPath(); |
| 4662 | |
| 4663 | // Optionally embed the -cc1 level arguments into the debug info, for build |
| 4664 | // analysis. |
| 4665 | // Also record command line arguments into the debug info if |
| 4666 | // -grecord-gcc-switches options is set on. |
| 4667 | // By default, -gno-record-gcc-switches is set on and no recording. |
| 4668 | if (getToolChain().UseDwarfDebugFlags() || |
| 4669 | Args.hasFlag(options::OPT_grecord_gcc_switches, |
| 4670 | options::OPT_gno_record_gcc_switches, false)) { |
| 4671 | ArgStringList OriginalArgs; |
| 4672 | for (const auto &Arg : Args) |
| 4673 | Arg->render(Args, OriginalArgs); |
| 4674 | |
| 4675 | SmallString<256> Flags; |
| 4676 | Flags += Exec; |
| 4677 | for (const char *OriginalArg : OriginalArgs) { |
| 4678 | SmallString<128> EscapedArg; |
| 4679 | EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); |
| 4680 | Flags += " "; |
| 4681 | Flags += EscapedArg; |
| 4682 | } |
| 4683 | CmdArgs.push_back("-dwarf-debug-flags"); |
| 4684 | CmdArgs.push_back(Args.MakeArgString(Flags)); |
| 4685 | } |
| 4686 | |
| 4687 | if (IsCuda) { |
| 4688 | // Host-side cuda compilation receives all device-side outputs in a single |
| 4689 | // fatbin as Inputs[1]. Include the binary with -fcuda-include-gpubinary. |
| 4690 | if (Inputs.size() > 1) { |
| 4691 | assert(Inputs.size() == 2 && "More than one GPU binary!")(static_cast <bool> (Inputs.size() == 2 && "More than one GPU binary!" ) ? void (0) : __assert_fail ("Inputs.size() == 2 && \"More than one GPU binary!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4691, __extension__ __PRETTY_FUNCTION__)); |
| 4692 | CmdArgs.push_back("-fcuda-include-gpubinary"); |
| 4693 | CmdArgs.push_back(Inputs[1].getFilename()); |
| 4694 | } |
| 4695 | |
| 4696 | if (Args.hasFlag(options::OPT_fcuda_rdc, options::OPT_fno_cuda_rdc, false)) |
| 4697 | CmdArgs.push_back("-fcuda-rdc"); |
| 4698 | } |
| 4699 | |
| 4700 | // OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path |
| 4701 | // to specify the result of the compile phase on the host, so the meaningful |
| 4702 | // device declarations can be identified. Also, -fopenmp-is-device is passed |
| 4703 | // along to tell the frontend that it is generating code for a device, so that |
| 4704 | // only the relevant declarations are emitted. |
| 4705 | if (IsOpenMPDevice) { |
| 4706 | CmdArgs.push_back("-fopenmp-is-device"); |
| 4707 | if (Inputs.size() == 2) { |
| 4708 | CmdArgs.push_back("-fopenmp-host-ir-file-path"); |
| 4709 | CmdArgs.push_back(Args.MakeArgString(Inputs.back().getFilename())); |
| 4710 | } |
| 4711 | } |
| 4712 | |
| 4713 | // For all the host OpenMP offloading compile jobs we need to pass the targets |
| 4714 | // information using -fopenmp-targets= option. |
| 4715 | if (isa<CompileJobAction>(JA) && JA.isHostOffloading(Action::OFK_OpenMP)) { |
| 4716 | SmallString<128> TargetInfo("-fopenmp-targets="); |
| 4717 | |
| 4718 | Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ); |
| 4719 | assert(Tgts && Tgts->getNumValues() &&(static_cast <bool> (Tgts && Tgts->getNumValues () && "OpenMP offloading has to have targets specified." ) ? void (0) : __assert_fail ("Tgts && Tgts->getNumValues() && \"OpenMP offloading has to have targets specified.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4720, __extension__ __PRETTY_FUNCTION__)) |
| 4720 | "OpenMP offloading has to have targets specified.")(static_cast <bool> (Tgts && Tgts->getNumValues () && "OpenMP offloading has to have targets specified." ) ? void (0) : __assert_fail ("Tgts && Tgts->getNumValues() && \"OpenMP offloading has to have targets specified.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4720, __extension__ __PRETTY_FUNCTION__)); |
| 4721 | for (unsigned i = 0; i < Tgts->getNumValues(); ++i) { |
| 4722 | if (i) |
| 4723 | TargetInfo += ','; |
| 4724 | // We need to get the string from the triple because it may be not exactly |
| 4725 | // the same as the one we get directly from the arguments. |
| 4726 | llvm::Triple T(Tgts->getValue(i)); |
| 4727 | TargetInfo += T.getTriple(); |
| 4728 | } |
| 4729 | CmdArgs.push_back(Args.MakeArgString(TargetInfo.str())); |
| 4730 | } |
| 4731 | |
| 4732 | bool WholeProgramVTables = |
| 4733 | Args.hasFlag(options::OPT_fwhole_program_vtables, |
| 4734 | options::OPT_fno_whole_program_vtables, false); |
| 4735 | if (WholeProgramVTables) { |
| 4736 | if (!D.isUsingLTO()) |
| 4737 | D.Diag(diag::err_drv_argument_only_allowed_with) |
| 4738 | << "-fwhole-program-vtables" |
| 4739 | << "-flto"; |
| 4740 | CmdArgs.push_back("-fwhole-program-vtables"); |
| 4741 | } |
| 4742 | |
| 4743 | if (Arg *A = Args.getLastArg(options::OPT_fexperimental_isel, |
| 4744 | options::OPT_fno_experimental_isel)) { |
| 4745 | CmdArgs.push_back("-mllvm"); |
| 4746 | if (A->getOption().matches(options::OPT_fexperimental_isel)) { |
| 4747 | CmdArgs.push_back("-global-isel=1"); |
| 4748 | |
| 4749 | // GISel is on by default on AArch64 -O0, so don't bother adding |
| 4750 | // the fallback remarks for it. Other combinations will add a warning of |
| 4751 | // some kind. |
| 4752 | bool IsArchSupported = Triple.getArch() == llvm::Triple::aarch64; |
| 4753 | bool IsOptLevelSupported = false; |
| 4754 | |
| 4755 | Arg *A = Args.getLastArg(options::OPT_O_Group); |
| 4756 | if (Triple.getArch() == llvm::Triple::aarch64) { |
| 4757 | if (!A || A->getOption().matches(options::OPT_O0)) |
| 4758 | IsOptLevelSupported = true; |
| 4759 | } |
| 4760 | if (!IsArchSupported || !IsOptLevelSupported) { |
| 4761 | CmdArgs.push_back("-mllvm"); |
| 4762 | CmdArgs.push_back("-global-isel-abort=2"); |
| 4763 | |
| 4764 | if (!IsArchSupported) |
| 4765 | D.Diag(diag::warn_drv_experimental_isel_incomplete) << Triple.getArchName(); |
| 4766 | else |
| 4767 | D.Diag(diag::warn_drv_experimental_isel_incomplete_opt); |
| 4768 | } |
| 4769 | } else { |
| 4770 | CmdArgs.push_back("-global-isel=0"); |
| 4771 | } |
| 4772 | } |
| 4773 | |
| 4774 | if (Arg *A = Args.getLastArg(options::OPT_fforce_enable_int128, |
| 4775 | options::OPT_fno_force_enable_int128)) { |
| 4776 | if (A->getOption().matches(options::OPT_fforce_enable_int128)) |
| 4777 | CmdArgs.push_back("-fforce-enable-int128"); |
| 4778 | } |
| 4779 | |
| 4780 | // Finally add the compile command to the compilation. |
| 4781 | if (Args.hasArg(options::OPT__SLASH_fallback) && |
| 4782 | Output.getType() == types::TY_Object && |
| 4783 | (InputType == types::TY_C || InputType == types::TY_CXX)) { |
| 4784 | auto CLCommand = |
| 4785 | getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput); |
| 4786 | C.addCommand(llvm::make_unique<FallbackCommand>( |
| 4787 | JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand))); |
| 4788 | } else if (Args.hasArg(options::OPT__SLASH_fallback) && |
| 4789 | isa<PrecompileJobAction>(JA)) { |
| 4790 | // In /fallback builds, run the main compilation even if the pch generation |
| 4791 | // fails, so that the main compilation's fallback to cl.exe runs. |
| 4792 | C.addCommand(llvm::make_unique<ForceSuccessCommand>(JA, *this, Exec, |
| 4793 | CmdArgs, Inputs)); |
| 4794 | } else { |
| 4795 | C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
| 4796 | } |
| 4797 | |
| 4798 | // Handle the debug info splitting at object creation time if we're |
| 4799 | // creating an object. |
| 4800 | // TODO: Currently only works on linux with newer objcopy. |
| 4801 | if (SplitDWARF && Output.getType() == types::TY_Object) |
| 4802 | SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, SplitDWARFOut); |
| 4803 | |
| 4804 | if (Arg *A = Args.getLastArg(options::OPT_pg)) |
| 4805 | if (Args.hasArg(options::OPT_fomit_frame_pointer)) |
| 4806 | D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer" |
| 4807 | << A->getAsString(Args); |
| 4808 | |
| 4809 | // Claim some arguments which clang supports automatically. |
| 4810 | |
| 4811 | // -fpch-preprocess is used with gcc to add a special marker in the output to |
| 4812 | // include the PCH file. Clang's PTH solution is completely transparent, so we |
| 4813 | // do not need to deal with it at all. |
| 4814 | Args.ClaimAllArgs(options::OPT_fpch_preprocess); |
| 4815 | |
| 4816 | // Claim some arguments which clang doesn't support, but we don't |
| 4817 | // care to warn the user about. |
| 4818 | Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group); |
| 4819 | Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group); |
| 4820 | |
| 4821 | // Disable warnings for clang -E -emit-llvm foo.c |
| 4822 | Args.ClaimAllArgs(options::OPT_emit_llvm); |
| 4823 | } |
| 4824 | |
| 4825 | Clang::Clang(const ToolChain &TC) |
| 4826 | // CAUTION! The first constructor argument ("clang") is not arbitrary, |
| 4827 | // as it is for other tools. Some operations on a Tool actually test |
| 4828 | // whether that tool is Clang based on the Tool's Name as a string. |
| 4829 | : Tool("clang", "clang frontend", TC, RF_Full) {} |
| 4830 | |
| 4831 | Clang::~Clang() {} |
| 4832 | |
| 4833 | /// Add options related to the Objective-C runtime/ABI. |
| 4834 | /// |
| 4835 | /// Returns true if the runtime is non-fragile. |
| 4836 | ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args, |
| 4837 | ArgStringList &cmdArgs, |
| 4838 | RewriteKind rewriteKind) const { |
| 4839 | // Look for the controlling runtime option. |
| 4840 | Arg *runtimeArg = |
| 4841 | args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime, |
| 4842 | options::OPT_fobjc_runtime_EQ); |
| 4843 | |
| 4844 | // Just forward -fobjc-runtime= to the frontend. This supercedes |
| 4845 | // options about fragility. |
| 4846 | if (runtimeArg && |
| 4847 | runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) { |
| 4848 | ObjCRuntime runtime; |
| 4849 | StringRef value = runtimeArg->getValue(); |
| 4850 | if (runtime.tryParse(value)) { |
| 4851 | getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime) |
| 4852 | << value; |
| 4853 | } |
| 4854 | |
| 4855 | runtimeArg->render(args, cmdArgs); |
| 4856 | return runtime; |
| 4857 | } |
| 4858 | |
| 4859 | // Otherwise, we'll need the ABI "version". Version numbers are |
| 4860 | // slightly confusing for historical reasons: |
| 4861 | // 1 - Traditional "fragile" ABI |
| 4862 | // 2 - Non-fragile ABI, version 1 |
| 4863 | // 3 - Non-fragile ABI, version 2 |
| 4864 | unsigned objcABIVersion = 1; |
| 4865 | // If -fobjc-abi-version= is present, use that to set the version. |
| 4866 | if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) { |
| 4867 | StringRef value = abiArg->getValue(); |
| 4868 | if (value == "1") |
| 4869 | objcABIVersion = 1; |
| 4870 | else if (value == "2") |
| 4871 | objcABIVersion = 2; |
| 4872 | else if (value == "3") |
| 4873 | objcABIVersion = 3; |
| 4874 | else |
| 4875 | getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value; |
| 4876 | } else { |
| 4877 | // Otherwise, determine if we are using the non-fragile ABI. |
| 4878 | bool nonFragileABIIsDefault = |
| 4879 | (rewriteKind == RK_NonFragile || |
| 4880 | (rewriteKind == RK_None && |
| 4881 | getToolChain().IsObjCNonFragileABIDefault())); |
| 4882 | if (args.hasFlag(options::OPT_fobjc_nonfragile_abi, |
| 4883 | options::OPT_fno_objc_nonfragile_abi, |
| 4884 | nonFragileABIIsDefault)) { |
| 4885 | // Determine the non-fragile ABI version to use. |
| 4886 | #ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO |
| 4887 | unsigned nonFragileABIVersion = 1; |
| 4888 | #else |
| 4889 | unsigned nonFragileABIVersion = 2; |
| 4890 | #endif |
| 4891 | |
| 4892 | if (Arg *abiArg = |
| 4893 | args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) { |
| 4894 | StringRef value = abiArg->getValue(); |
| 4895 | if (value == "1") |
| 4896 | nonFragileABIVersion = 1; |
| 4897 | else if (value == "2") |
| 4898 | nonFragileABIVersion = 2; |
| 4899 | else |
| 4900 | getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) |
| 4901 | << value; |
| 4902 | } |
| 4903 | |
| 4904 | objcABIVersion = 1 + nonFragileABIVersion; |
| 4905 | } else { |
| 4906 | objcABIVersion = 1; |
| 4907 | } |
| 4908 | } |
| 4909 | |
| 4910 | // We don't actually care about the ABI version other than whether |
| 4911 | // it's non-fragile. |
| 4912 | bool isNonFragile = objcABIVersion != 1; |
| 4913 | |
| 4914 | // If we have no runtime argument, ask the toolchain for its default runtime. |
| 4915 | // However, the rewriter only really supports the Mac runtime, so assume that. |
| 4916 | ObjCRuntime runtime; |
| 4917 | if (!runtimeArg) { |
| 4918 | switch (rewriteKind) { |
| 4919 | case RK_None: |
| 4920 | runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); |
| 4921 | break; |
| 4922 | case RK_Fragile: |
| 4923 | runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple()); |
| 4924 | break; |
| 4925 | case RK_NonFragile: |
| 4926 | runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); |
| 4927 | break; |
| 4928 | } |
| 4929 | |
| 4930 | // -fnext-runtime |
| 4931 | } else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) { |
| 4932 | // On Darwin, make this use the default behavior for the toolchain. |
| 4933 | if (getToolChain().getTriple().isOSDarwin()) { |
| 4934 | runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); |
| 4935 | |
| 4936 | // Otherwise, build for a generic macosx port. |
| 4937 | } else { |
| 4938 | runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); |
| 4939 | } |
| 4940 | |
| 4941 | // -fgnu-runtime |
| 4942 | } else { |
| 4943 | assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime))(static_cast <bool> (runtimeArg->getOption().matches (options::OPT_fgnu_runtime)) ? void (0) : __assert_fail ("runtimeArg->getOption().matches(options::OPT_fgnu_runtime)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4943, __extension__ __PRETTY_FUNCTION__)); |
| 4944 | // Legacy behaviour is to target the gnustep runtime if we are in |
| 4945 | // non-fragile mode or the GCC runtime in fragile mode. |
| 4946 | if (isNonFragile) |
| 4947 | runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(1, 6)); |
| 4948 | else |
| 4949 | runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple()); |
| 4950 | } |
| 4951 | |
| 4952 | cmdArgs.push_back( |
| 4953 | args.MakeArgString("-fobjc-runtime=" + runtime.getAsString())); |
| 4954 | return runtime; |
| 4955 | } |
| 4956 | |
| 4957 | static bool maybeConsumeDash(const std::string &EH, size_t &I) { |
| 4958 | bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-'); |
| 4959 | I += HaveDash; |
| 4960 | return !HaveDash; |
| 4961 | } |
| 4962 | |
| 4963 | namespace { |
| 4964 | struct EHFlags { |
| 4965 | bool Synch = false; |
| 4966 | bool Asynch = false; |
| 4967 | bool NoUnwindC = false; |
| 4968 | }; |
| 4969 | } // end anonymous namespace |
| 4970 | |
| 4971 | /// /EH controls whether to run destructor cleanups when exceptions are |
| 4972 | /// thrown. There are three modifiers: |
| 4973 | /// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions. |
| 4974 | /// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions. |
| 4975 | /// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR. |
| 4976 | /// - c: Assume that extern "C" functions are implicitly nounwind. |
| 4977 | /// The default is /EHs-c-, meaning cleanups are disabled. |
| 4978 | static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) { |
| 4979 | EHFlags EH; |
| 4980 | |
| 4981 | std::vector<std::string> EHArgs = |
| 4982 | Args.getAllArgValues(options::OPT__SLASH_EH); |
| 4983 | for (auto EHVal : EHArgs) { |
| 4984 | for (size_t I = 0, E = EHVal.size(); I != E; ++I) { |
| 4985 | switch (EHVal[I]) { |
| 4986 | case 'a': |
| 4987 | EH.Asynch = maybeConsumeDash(EHVal, I); |
| 4988 | if (EH.Asynch) |
| 4989 | EH.Synch = false; |
| 4990 | continue; |
| 4991 | case 'c': |
| 4992 | EH.NoUnwindC = maybeConsumeDash(EHVal, I); |
| 4993 | continue; |
| 4994 | case 's': |
| 4995 | EH.Synch = maybeConsumeDash(EHVal, I); |
| 4996 | if (EH.Synch) |
| 4997 | EH.Asynch = false; |
| 4998 | continue; |
| 4999 | default: |
| 5000 | break; |
| 5001 | } |
| 5002 | D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal; |
| 5003 | break; |
| 5004 | } |
| 5005 | } |
| 5006 | // The /GX, /GX- flags are only processed if there are not /EH flags. |
| 5007 | // The default is that /GX is not specified. |
| 5008 | if (EHArgs.empty() && |
| 5009 | Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_, |
| 5010 | /*default=*/false)) { |
| 5011 | EH.Synch = true; |
| 5012 | EH.NoUnwindC = true; |
| 5013 | } |
| 5014 | |
| 5015 | return EH; |
| 5016 | } |
| 5017 | |
| 5018 | void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType, |
| 5019 | ArgStringList &CmdArgs, |
| 5020 | codegenoptions::DebugInfoKind *DebugInfoKind, |
| 5021 | bool *EmitCodeView) const { |
| 5022 | unsigned RTOptionID = options::OPT__SLASH_MT; |
| 5023 | |
| 5024 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
| 5025 | // The /LDd option implies /MTd. The dependent lib part can be overridden, |
| 5026 | // but defining _DEBUG is sticky. |
| 5027 | RTOptionID = options::OPT__SLASH_MTd; |
| 5028 | |
| 5029 | if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group)) |
| 5030 | RTOptionID = A->getOption().getID(); |
| 5031 | |
| 5032 | StringRef FlagForCRT; |
| 5033 | switch (RTOptionID) { |
| 5034 | case options::OPT__SLASH_MD: |
| 5035 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
| 5036 | CmdArgs.push_back("-D_DEBUG"); |
| 5037 | CmdArgs.push_back("-D_MT"); |
| 5038 | CmdArgs.push_back("-D_DLL"); |
| 5039 | FlagForCRT = "--dependent-lib=msvcrt"; |
| 5040 | break; |
| 5041 | case options::OPT__SLASH_MDd: |
| 5042 | CmdArgs.push_back("-D_DEBUG"); |
| 5043 | CmdArgs.push_back("-D_MT"); |
| 5044 | CmdArgs.push_back("-D_DLL"); |
| 5045 | FlagForCRT = "--dependent-lib=msvcrtd"; |
| 5046 | break; |
| 5047 | case options::OPT__SLASH_MT: |
| 5048 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
| 5049 | CmdArgs.push_back("-D_DEBUG"); |
| 5050 | CmdArgs.push_back("-D_MT"); |
| 5051 | CmdArgs.push_back("-flto-visibility-public-std"); |
| 5052 | FlagForCRT = "--dependent-lib=libcmt"; |
| 5053 | break; |
| 5054 | case options::OPT__SLASH_MTd: |
| 5055 | CmdArgs.push_back("-D_DEBUG"); |
| 5056 | CmdArgs.push_back("-D_MT"); |
| 5057 | CmdArgs.push_back("-flto-visibility-public-std"); |
| 5058 | FlagForCRT = "--dependent-lib=libcmtd"; |
| 5059 | break; |
| 5060 | default: |
| 5061 | llvm_unreachable("Unexpected option ID.")::llvm::llvm_unreachable_internal("Unexpected option ID.", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5061); |
| 5062 | } |
| 5063 | |
| 5064 | if (Args.hasArg(options::OPT__SLASH_Zl)) { |
| 5065 | CmdArgs.push_back("-D_VC_NODEFAULTLIB"); |
| 5066 | } else { |
| 5067 | CmdArgs.push_back(FlagForCRT.data()); |
| 5068 | |
| 5069 | // This provides POSIX compatibility (maps 'open' to '_open'), which most |
| 5070 | // users want. The /Za flag to cl.exe turns this off, but it's not |
| 5071 | // implemented in clang. |
| 5072 | CmdArgs.push_back("--dependent-lib=oldnames"); |
| 5073 | } |
| 5074 | |
| 5075 | // Both /showIncludes and /E (and /EP) write to stdout. Allowing both |
| 5076 | // would produce interleaved output, so ignore /showIncludes in such cases. |
| 5077 | if ((!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_EP)) || |
| 5078 | (Args.hasArg(options::OPT__SLASH_P) && |
| 5079 | Args.hasArg(options::OPT__SLASH_EP) && !Args.hasArg(options::OPT_E))) |
| 5080 | if (Arg *A = Args.getLastArg(options::OPT_show_includes)) |
| 5081 | A->render(Args, CmdArgs); |
| 5082 | |
| 5083 | // This controls whether or not we emit RTTI data for polymorphic types. |
| 5084 | if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR, |
| 5085 | /*default=*/false)) |
| 5086 | CmdArgs.push_back("-fno-rtti-data"); |
| 5087 | |
| 5088 | // This controls whether or not we emit stack-protector instrumentation. |
| 5089 | // In MSVC, Buffer Security Check (/GS) is on by default. |
| 5090 | if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_, |
| 5091 | /*default=*/true)) { |
| 5092 | CmdArgs.push_back("-stack-protector"); |
| 5093 | CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong))); |
| 5094 | } |
| 5095 | |
| 5096 | // Emit CodeView if -Z7, -Zd, or -gline-tables-only are present. |
| 5097 | if (Arg *DebugInfoArg = |
| 5098 | Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd, |
| 5099 | options::OPT_gline_tables_only)) { |
| 5100 | *EmitCodeView = true; |
| 5101 | if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7)) |
| 5102 | *DebugInfoKind = codegenoptions::LimitedDebugInfo; |
| 5103 | else |
| 5104 | *DebugInfoKind = codegenoptions::DebugLineTablesOnly; |
| 5105 | CmdArgs.push_back("-gcodeview"); |
| 5106 | } else { |
| 5107 | *EmitCodeView = false; |
| 5108 | } |
| 5109 | |
| 5110 | const Driver &D = getToolChain().getDriver(); |
| 5111 | EHFlags EH = parseClangCLEHFlags(D, Args); |
| 5112 | if (EH.Synch || EH.Asynch) { |
| 5113 | if (types::isCXX(InputType)) |
| 5114 | CmdArgs.push_back("-fcxx-exceptions"); |
| 5115 | CmdArgs.push_back("-fexceptions"); |
| 5116 | } |
| 5117 | if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC) |
| 5118 | CmdArgs.push_back("-fexternc-nounwind"); |
| 5119 | |
| 5120 | // /EP should expand to -E -P. |
| 5121 | if (Args.hasArg(options::OPT__SLASH_EP)) { |
| 5122 | CmdArgs.push_back("-E"); |
| 5123 | CmdArgs.push_back("-P"); |
| 5124 | } |
| 5125 | |
| 5126 | unsigned VolatileOptionID; |
| 5127 | if (getToolChain().getArch() == llvm::Triple::x86_64 || |
| 5128 | getToolChain().getArch() == llvm::Triple::x86) |
| 5129 | VolatileOptionID = options::OPT__SLASH_volatile_ms; |
| 5130 | else |
| 5131 | VolatileOptionID = options::OPT__SLASH_volatile_iso; |
| 5132 | |
| 5133 | if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group)) |
| 5134 | VolatileOptionID = A->getOption().getID(); |
| 5135 | |
| 5136 | if (VolatileOptionID == options::OPT__SLASH_volatile_ms) |
| 5137 | CmdArgs.push_back("-fms-volatile"); |
| 5138 | |
| 5139 | Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg); |
| 5140 | Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb); |
| 5141 | if (MostGeneralArg && BestCaseArg) |
| 5142 | D.Diag(clang::diag::err_drv_argument_not_allowed_with) |
| 5143 | << MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args); |
| 5144 | |
| 5145 | if (MostGeneralArg) { |
| 5146 | Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms); |
| 5147 | Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm); |
| 5148 | Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv); |
| 5149 | |
| 5150 | Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg; |
| 5151 | Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg; |
| 5152 | if (FirstConflict && SecondConflict && FirstConflict != SecondConflict) |
| 5153 | D.Diag(clang::diag::err_drv_argument_not_allowed_with) |
| 5154 | << FirstConflict->getAsString(Args) |
| 5155 | << SecondConflict->getAsString(Args); |
| 5156 | |
| 5157 | if (SingleArg) |
| 5158 | CmdArgs.push_back("-fms-memptr-rep=single"); |
| 5159 | else if (MultipleArg) |
| 5160 | CmdArgs.push_back("-fms-memptr-rep=multiple"); |
| 5161 | else |
| 5162 | CmdArgs.push_back("-fms-memptr-rep=virtual"); |
| 5163 | } |
| 5164 | |
| 5165 | // Parse the default calling convention options. |
| 5166 | if (Arg *CCArg = |
| 5167 | Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr, |
| 5168 | options::OPT__SLASH_Gz, options::OPT__SLASH_Gv, |
| 5169 | options::OPT__SLASH_Gregcall)) { |
| 5170 | unsigned DCCOptId = CCArg->getOption().getID(); |
| 5171 | const char *DCCFlag = nullptr; |
| 5172 | bool ArchSupported = true; |
| 5173 | llvm::Triple::ArchType Arch = getToolChain().getArch(); |
| 5174 | switch (DCCOptId) { |
| 5175 | case options::OPT__SLASH_Gd: |
| 5176 | DCCFlag = "-fdefault-calling-conv=cdecl"; |
| 5177 | break; |
| 5178 | case options::OPT__SLASH_Gr: |
| 5179 | ArchSupported = Arch == llvm::Triple::x86; |
| 5180 | DCCFlag = "-fdefault-calling-conv=fastcall"; |
| 5181 | break; |
| 5182 | case options::OPT__SLASH_Gz: |
| 5183 | ArchSupported = Arch == llvm::Triple::x86; |
| 5184 | DCCFlag = "-fdefault-calling-conv=stdcall"; |
| 5185 | break; |
| 5186 | case options::OPT__SLASH_Gv: |
| 5187 | ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64; |
| 5188 | DCCFlag = "-fdefault-calling-conv=vectorcall"; |
| 5189 | break; |
| 5190 | case options::OPT__SLASH_Gregcall: |
| 5191 | ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64; |
| 5192 | DCCFlag = "-fdefault-calling-conv=regcall"; |
| 5193 | break; |
| 5194 | } |
| 5195 | |
| 5196 | // MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either. |
| 5197 | if (ArchSupported && DCCFlag) |
| 5198 | CmdArgs.push_back(DCCFlag); |
| 5199 | } |
| 5200 | |
| 5201 | if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ)) |
| 5202 | A->render(Args, CmdArgs); |
| 5203 | |
| 5204 | if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) { |
| 5205 | CmdArgs.push_back("-fdiagnostics-format"); |
| 5206 | if (Args.hasArg(options::OPT__SLASH_fallback)) |
| 5207 | CmdArgs.push_back("msvc-fallback"); |
| 5208 | else |
| 5209 | CmdArgs.push_back("msvc"); |
| 5210 | } |
| 5211 | |
| 5212 | if (Args.hasArg(options::OPT__SLASH_Guard) && |
| 5213 | Args.getLastArgValue(options::OPT__SLASH_Guard).equals_lower("cf")) |
| 5214 | CmdArgs.push_back("-cfguard"); |
| 5215 | } |
| 5216 | |
| 5217 | visualstudio::Compiler *Clang::getCLFallback() const { |
| 5218 | if (!CLFallback) |
| 5219 | CLFallback.reset(new visualstudio::Compiler(getToolChain())); |
| 5220 | return CLFallback.get(); |
| 5221 | } |
| 5222 | |
| 5223 | |
| 5224 | const char *Clang::getBaseInputName(const ArgList &Args, |
| 5225 | const InputInfo &Input) { |
| 5226 | return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput())); |
| 5227 | } |
| 5228 | |
| 5229 | const char *Clang::getBaseInputStem(const ArgList &Args, |
| 5230 | const InputInfoList &Inputs) { |
| 5231 | const char *Str = getBaseInputName(Args, Inputs[0]); |
| 5232 | |
| 5233 | if (const char *End = strrchr(Str, '.')) |
| 5234 | return Args.MakeArgString(std::string(Str, End)); |
| 5235 | |
| 5236 | return Str; |
| 5237 | } |
| 5238 | |
| 5239 | const char *Clang::getDependencyFileName(const ArgList &Args, |
| 5240 | const InputInfoList &Inputs) { |
| 5241 | // FIXME: Think about this more. |
| 5242 | std::string Res; |
| 5243 | |
| 5244 | if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) { |
| 5245 | std::string Str(OutputOpt->getValue()); |
| 5246 | Res = Str.substr(0, Str.rfind('.')); |
| 5247 | } else { |
| 5248 | Res = getBaseInputStem(Args, Inputs); |
| 5249 | } |
| 5250 | return Args.MakeArgString(Res + ".d"); |
| 5251 | } |
| 5252 | |
| 5253 | // Begin ClangAs |
| 5254 | |
| 5255 | void ClangAs::AddMIPSTargetArgs(const ArgList &Args, |
| 5256 | ArgStringList &CmdArgs) const { |
| 5257 | StringRef CPUName; |
| 5258 | StringRef ABIName; |
| 5259 | const llvm::Triple &Triple = getToolChain().getTriple(); |
| 5260 | mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); |
| 5261 | |
| 5262 | CmdArgs.push_back("-target-abi"); |
| 5263 | CmdArgs.push_back(ABIName.data()); |
| 5264 | } |
| 5265 | |
| 5266 | void ClangAs::AddX86TargetArgs(const ArgList &Args, |
| 5267 | ArgStringList &CmdArgs) const { |
| 5268 | if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { |
| 5269 | StringRef Value = A->getValue(); |
| 5270 | if (Value == "intel" || Value == "att") { |
| 5271 | CmdArgs.push_back("-mllvm"); |
| 5272 | CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); |
| 5273 | } else { |
| 5274 | getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) |
| 5275 | << A->getOption().getName() << Value; |
| 5276 | } |
| 5277 | } |
| 5278 | } |
| 5279 | |
| 5280 | void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, |
| 5281 | const InputInfo &Output, const InputInfoList &Inputs, |
| 5282 | const ArgList &Args, |
| 5283 | const char *LinkingOutput) const { |
| 5284 | ArgStringList CmdArgs; |
| 5285 | |
| 5286 | assert(Inputs.size() == 1 && "Unexpected number of inputs.")(static_cast <bool> (Inputs.size() == 1 && "Unexpected number of inputs." ) ? void (0) : __assert_fail ("Inputs.size() == 1 && \"Unexpected number of inputs.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5286, __extension__ __PRETTY_FUNCTION__)); |
| 5287 | const InputInfo &Input = Inputs[0]; |
| 5288 | |
| 5289 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
| 5290 | const std::string &TripleStr = Triple.getTriple(); |
| 5291 | const auto &D = getToolChain().getDriver(); |
| 5292 | |
| 5293 | // Don't warn about "clang -w -c foo.s" |
| 5294 | Args.ClaimAllArgs(options::OPT_w); |
| 5295 | // and "clang -emit-llvm -c foo.s" |
| 5296 | Args.ClaimAllArgs(options::OPT_emit_llvm); |
| 5297 | |
| 5298 | claimNoWarnArgs(Args); |
| 5299 | |
| 5300 | // Invoke ourselves in -cc1as mode. |
| 5301 | // |
| 5302 | // FIXME: Implement custom jobs for internal actions. |
| 5303 | CmdArgs.push_back("-cc1as"); |
| 5304 | |
| 5305 | // Add the "effective" target triple. |
| 5306 | CmdArgs.push_back("-triple"); |
| 5307 | CmdArgs.push_back(Args.MakeArgString(TripleStr)); |
| 5308 | |
| 5309 | // Set the output mode, we currently only expect to be used as a real |
| 5310 | // assembler. |
| 5311 | CmdArgs.push_back("-filetype"); |
| 5312 | CmdArgs.push_back("obj"); |
| 5313 | |
| 5314 | // Set the main file name, so that debug info works even with |
| 5315 | // -save-temps or preprocessed assembly. |
| 5316 | CmdArgs.push_back("-main-file-name"); |
| 5317 | CmdArgs.push_back(Clang::getBaseInputName(Args, Input)); |
| 5318 | |
| 5319 | // Add the target cpu |
| 5320 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ true); |
| 5321 | if (!CPU.empty()) { |
| 5322 | CmdArgs.push_back("-target-cpu"); |
| 5323 | CmdArgs.push_back(Args.MakeArgString(CPU)); |
| 5324 | } |
| 5325 | |
| 5326 | // Add the target features |
| 5327 | getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true); |
| 5328 | |
| 5329 | // Ignore explicit -force_cpusubtype_ALL option. |
| 5330 | (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); |
| 5331 | |
| 5332 | // Pass along any -I options so we get proper .include search paths. |
| 5333 | Args.AddAllArgs(CmdArgs, options::OPT_I_Group); |
| 5334 | |
| 5335 | // Determine the original source input. |
| 5336 | const Action *SourceAction = &JA; |
| 5337 | while (SourceAction->getKind() != Action::InputClass) { |
| 5338 | assert(!SourceAction->getInputs().empty() && "unexpected root action!")(static_cast <bool> (!SourceAction->getInputs().empty () && "unexpected root action!") ? void (0) : __assert_fail ("!SourceAction->getInputs().empty() && \"unexpected root action!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5338, __extension__ __PRETTY_FUNCTION__)); |
| 5339 | SourceAction = SourceAction->getInputs()[0]; |
| 5340 | } |
| 5341 | |
| 5342 | // Forward -g and handle debug info related flags, assuming we are dealing |
| 5343 | // with an actual assembly file. |
| 5344 | bool WantDebug = false; |
| 5345 | unsigned DwarfVersion = 0; |
| 5346 | Args.ClaimAllArgs(options::OPT_g_Group); |
| 5347 | if (Arg *A = Args.getLastArg(options::OPT_g_Group)) { |
| 5348 | WantDebug = !A->getOption().matches(options::OPT_g0) && |
| 5349 | !A->getOption().matches(options::OPT_ggdb0); |
| 5350 | if (WantDebug) |
| 5351 | DwarfVersion = DwarfVersionNum(A->getSpelling()); |
| 5352 | } |
| 5353 | if (DwarfVersion == 0) |
| 5354 | DwarfVersion = getToolChain().GetDefaultDwarfVersion(); |
| 5355 | |
| 5356 | codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; |
| 5357 | |
| 5358 | if (SourceAction->getType() == types::TY_Asm || |
| 5359 | SourceAction->getType() == types::TY_PP_Asm) { |
| 5360 | // You might think that it would be ok to set DebugInfoKind outside of |
| 5361 | // the guard for source type, however there is a test which asserts |
| 5362 | // that some assembler invocation receives no -debug-info-kind, |
| 5363 | // and it's not clear whether that test is just overly restrictive. |
| 5364 | DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo |
| 5365 | : codegenoptions::NoDebugInfo); |
| 5366 | // Add the -fdebug-compilation-dir flag if needed. |
| 5367 | addDebugCompDirArg(Args, CmdArgs); |
| 5368 | |
| 5369 | // Set the AT_producer to the clang version when using the integrated |
| 5370 | // assembler on assembly source files. |
| 5371 | CmdArgs.push_back("-dwarf-debug-producer"); |
| 5372 | CmdArgs.push_back(Args.MakeArgString(getClangFullVersion())); |
| 5373 | |
| 5374 | // And pass along -I options |
| 5375 | Args.AddAllArgs(CmdArgs, options::OPT_I); |
| 5376 | } |
| 5377 | RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion, |
| 5378 | llvm::DebuggerKind::Default); |
| 5379 | RenderDebugInfoCompressionArgs(Args, CmdArgs, D); |
| 5380 | |
| 5381 | |
| 5382 | // Handle -fPIC et al -- the relocation-model affects the assembler |
| 5383 | // for some targets. |
| 5384 | llvm::Reloc::Model RelocationModel; |
| 5385 | unsigned PICLevel; |
| 5386 | bool IsPIE; |
| 5387 | std::tie(RelocationModel, PICLevel, IsPIE) = |
| 5388 | ParsePICArgs(getToolChain(), Args); |
| 5389 | |
| 5390 | const char *RMName = RelocationModelName(RelocationModel); |
| 5391 | if (RMName) { |
| 5392 | CmdArgs.push_back("-mrelocation-model"); |
| 5393 | CmdArgs.push_back(RMName); |
| 5394 | } |
| 5395 | |
| 5396 | // Optionally embed the -cc1as level arguments into the debug info, for build |
| 5397 | // analysis. |
| 5398 | if (getToolChain().UseDwarfDebugFlags()) { |
| 5399 | ArgStringList OriginalArgs; |
| 5400 | for (const auto &Arg : Args) |
| 5401 | Arg->render(Args, OriginalArgs); |
| 5402 | |
| 5403 | SmallString<256> Flags; |
| 5404 | const char *Exec = getToolChain().getDriver().getClangProgramPath(); |
| 5405 | Flags += Exec; |
| 5406 | for (const char *OriginalArg : OriginalArgs) { |
| 5407 | SmallString<128> EscapedArg; |
| 5408 | EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); |
| 5409 | Flags += " "; |
| 5410 | Flags += EscapedArg; |
| 5411 | } |
| 5412 | CmdArgs.push_back("-dwarf-debug-flags"); |
| 5413 | CmdArgs.push_back(Args.MakeArgString(Flags)); |
| 5414 | } |
| 5415 | |
| 5416 | // FIXME: Add -static support, once we have it. |
| 5417 | |
| 5418 | // Add target specific flags. |
| 5419 | switch (getToolChain().getArch()) { |
| 5420 | default: |
| 5421 | break; |
| 5422 | |
| 5423 | case llvm::Triple::mips: |
| 5424 | case llvm::Triple::mipsel: |
| 5425 | case llvm::Triple::mips64: |
| 5426 | case llvm::Triple::mips64el: |
| 5427 | AddMIPSTargetArgs(Args, CmdArgs); |
| 5428 | break; |
| 5429 | |
| 5430 | case llvm::Triple::x86: |
| 5431 | case llvm::Triple::x86_64: |
| 5432 | AddX86TargetArgs(Args, CmdArgs); |
| 5433 | break; |
| 5434 | |
| 5435 | case llvm::Triple::arm: |
| 5436 | case llvm::Triple::armeb: |
| 5437 | case llvm::Triple::thumb: |
| 5438 | case llvm::Triple::thumbeb: |
| 5439 | // This isn't in AddARMTargetArgs because we want to do this for assembly |
| 5440 | // only, not C/C++. |
| 5441 | if (Args.hasFlag(options::OPT_mdefault_build_attributes, |
| 5442 | options::OPT_mno_default_build_attributes, true)) { |
| 5443 | CmdArgs.push_back("-mllvm"); |
| 5444 | CmdArgs.push_back("-arm-add-build-attributes"); |
| 5445 | } |
| 5446 | break; |
| 5447 | } |
| 5448 | |
| 5449 | // Consume all the warning flags. Usually this would be handled more |
| 5450 | // gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as |
| 5451 | // doesn't handle that so rather than warning about unused flags that are |
| 5452 | // actually used, we'll lie by omission instead. |
| 5453 | // FIXME: Stop lying and consume only the appropriate driver flags |
| 5454 | Args.ClaimAllArgs(options::OPT_W_Group); |
| 5455 | |
| 5456 | CollectArgsForIntegratedAssembler(C, Args, CmdArgs, |
| 5457 | getToolChain().getDriver()); |
| 5458 | |
| 5459 | Args.AddAllArgs(CmdArgs, options::OPT_mllvm); |
| 5460 | |
| 5461 | assert(Output.isFilename() && "Unexpected lipo output.")(static_cast <bool> (Output.isFilename() && "Unexpected lipo output." ) ? void (0) : __assert_fail ("Output.isFilename() && \"Unexpected lipo output.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5461, __extension__ __PRETTY_FUNCTION__)); |
| 5462 | CmdArgs.push_back("-o"); |
| 5463 | CmdArgs.push_back(Output.getFilename()); |
| 5464 | |
| 5465 | assert(Input.isFilename() && "Invalid input.")(static_cast <bool> (Input.isFilename() && "Invalid input." ) ? void (0) : __assert_fail ("Input.isFilename() && \"Invalid input.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5465, __extension__ __PRETTY_FUNCTION__)); |
| 5466 | CmdArgs.push_back(Input.getFilename()); |
| 5467 | |
| 5468 | const char *Exec = getToolChain().getDriver().getClangProgramPath(); |
| 5469 | C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
| 5470 | |
| 5471 | // Handle the debug info splitting at object creation time if we're |
| 5472 | // creating an object. |
| 5473 | // TODO: Currently only works on linux with newer objcopy. |
| 5474 | if (Args.hasArg(options::OPT_gsplit_dwarf) && |
| 5475 | getToolChain().getTriple().isOSLinux()) |
| 5476 | SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, |
| 5477 | SplitDebugName(Args, Input)); |
| 5478 | } |
| 5479 | |
| 5480 | // Begin OffloadBundler |
| 5481 | |
| 5482 | void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA, |
| 5483 | const InputInfo &Output, |
| 5484 | const InputInfoList &Inputs, |
| 5485 | const llvm::opt::ArgList &TCArgs, |
| 5486 | const char *LinkingOutput) const { |
| 5487 | // The version with only one output is expected to refer to a bundling job. |
| 5488 | assert(isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!")(static_cast <bool> (isa<OffloadBundlingJobAction> (JA) && "Expecting bundling job!") ? void (0) : __assert_fail ("isa<OffloadBundlingJobAction>(JA) && \"Expecting bundling job!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5488, __extension__ __PRETTY_FUNCTION__)); |
| 5489 | |
| 5490 | // The bundling command looks like this: |
| 5491 | // clang-offload-bundler -type=bc |
| 5492 | // -targets=host-triple,openmp-triple1,openmp-triple2 |
| 5493 | // -outputs=input_file |
| 5494 | // -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" |
| 5495 | |
| 5496 | ArgStringList CmdArgs; |
| 5497 | |
| 5498 | // Get the type. |
| 5499 | CmdArgs.push_back(TCArgs.MakeArgString( |
| 5500 | Twine("-type=") + types::getTypeTempSuffix(Output.getType()))); |
| 5501 | |
| 5502 | assert(JA.getInputs().size() == Inputs.size() &&(static_cast <bool> (JA.getInputs().size() == Inputs.size () && "Not have inputs for all dependence actions??") ? void (0) : __assert_fail ("JA.getInputs().size() == Inputs.size() && \"Not have inputs for all dependence actions??\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5503, __extension__ __PRETTY_FUNCTION__)) |
| 5503 | "Not have inputs for all dependence actions??")(static_cast <bool> (JA.getInputs().size() == Inputs.size () && "Not have inputs for all dependence actions??") ? void (0) : __assert_fail ("JA.getInputs().size() == Inputs.size() && \"Not have inputs for all dependence actions??\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5503, __extension__ __PRETTY_FUNCTION__)); |
| 5504 | |
| 5505 | // Get the targets. |
| 5506 | SmallString<128> Triples; |
| 5507 | Triples += "-targets="; |
| 5508 | for (unsigned I = 0; I < Inputs.size(); ++I) { |
| 5509 | if (I) |
| 5510 | Triples += ','; |
| 5511 | |
| 5512 | // Find ToolChain for this input. |
| 5513 | Action::OffloadKind CurKind = Action::OFK_Host; |
| 5514 | const ToolChain *CurTC = &getToolChain(); |
| 5515 | const Action *CurDep = JA.getInputs()[I]; |
| 5516 | |
| 5517 | if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) { |
| 5518 | CurTC = nullptr; |
| 5519 | OA->doOnEachDependence([&](Action *A, const ToolChain *TC, const char *) { |
| 5520 | assert(CurTC == nullptr && "Expected one dependence!")(static_cast <bool> (CurTC == nullptr && "Expected one dependence!" ) ? void (0) : __assert_fail ("CurTC == nullptr && \"Expected one dependence!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5520, __extension__ __PRETTY_FUNCTION__)); |
| 5521 | CurKind = A->getOffloadingDeviceKind(); |
| 5522 | CurTC = TC; |
| 5523 | }); |
| 5524 | } |
| 5525 | Triples += Action::GetOffloadKindName(CurKind); |
| 5526 | Triples += '-'; |
| 5527 | Triples += CurTC->getTriple().normalize(); |
| 5528 | } |
| 5529 | CmdArgs.push_back(TCArgs.MakeArgString(Triples)); |
| 5530 | |
| 5531 | // Get bundled file command. |
| 5532 | CmdArgs.push_back( |
| 5533 | TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename())); |
| 5534 | |
| 5535 | // Get unbundled files command. |
| 5536 | SmallString<128> UB; |
| 5537 | UB += "-inputs="; |
| 5538 | for (unsigned I = 0; I < Inputs.size(); ++I) { |
| 5539 | if (I) |
| 5540 | UB += ','; |
| 5541 | |
| 5542 | // Find ToolChain for this input. |
| 5543 | const ToolChain *CurTC = &getToolChain(); |
| 5544 | if (const auto *OA = dyn_cast<OffloadAction>(JA.getInputs()[I])) { |
| 5545 | CurTC = nullptr; |
| 5546 | OA->doOnEachDependence([&](Action *, const ToolChain *TC, const char *) { |
| 5547 | assert(CurTC == nullptr && "Expected one dependence!")(static_cast <bool> (CurTC == nullptr && "Expected one dependence!" ) ? void (0) : __assert_fail ("CurTC == nullptr && \"Expected one dependence!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5547, __extension__ __PRETTY_FUNCTION__)); |
| 5548 | CurTC = TC; |
| 5549 | }); |
| 5550 | } |
| 5551 | UB += CurTC->getInputFilename(Inputs[I]); |
| 5552 | } |
| 5553 | CmdArgs.push_back(TCArgs.MakeArgString(UB)); |
| 5554 | |
| 5555 | // All the inputs are encoded as commands. |
| 5556 | C.addCommand(llvm::make_unique<Command>( |
| 5557 | JA, *this, |
| 5558 | TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), |
| 5559 | CmdArgs, None)); |
| 5560 | } |
| 5561 | |
| 5562 | void OffloadBundler::ConstructJobMultipleOutputs( |
| 5563 | Compilation &C, const JobAction &JA, const InputInfoList &Outputs, |
| 5564 | const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, |
| 5565 | const char *LinkingOutput) const { |
| 5566 | // The version with multiple outputs is expected to refer to a unbundling job. |
| 5567 | auto &UA = cast<OffloadUnbundlingJobAction>(JA); |
| 5568 | |
| 5569 | // The unbundling command looks like this: |
| 5570 | // clang-offload-bundler -type=bc |
| 5571 | // -targets=host-triple,openmp-triple1,openmp-triple2 |
| 5572 | // -inputs=input_file |
| 5573 | // -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" |
| 5574 | // -unbundle |
| 5575 | |
| 5576 | ArgStringList CmdArgs; |
| 5577 | |
| 5578 | assert(Inputs.size() == 1 && "Expecting to unbundle a single file!")(static_cast <bool> (Inputs.size() == 1 && "Expecting to unbundle a single file!" ) ? void (0) : __assert_fail ("Inputs.size() == 1 && \"Expecting to unbundle a single file!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5578, __extension__ __PRETTY_FUNCTION__)); |
| 5579 | InputInfo Input = Inputs.front(); |
| 5580 | |
| 5581 | // Get the type. |
| 5582 | CmdArgs.push_back(TCArgs.MakeArgString( |
| 5583 | Twine("-type=") + types::getTypeTempSuffix(Input.getType()))); |
| 5584 | |
| 5585 | // Get the targets. |
| 5586 | SmallString<128> Triples; |
| 5587 | Triples += "-targets="; |
| 5588 | auto DepInfo = UA.getDependentActionsInfo(); |
| 5589 | for (unsigned I = 0; I < DepInfo.size(); ++I) { |
| 5590 | if (I) |
| 5591 | Triples += ','; |
| 5592 | |
| 5593 | auto &Dep = DepInfo[I]; |
| 5594 | Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind); |
| 5595 | Triples += '-'; |
| 5596 | Triples += Dep.DependentToolChain->getTriple().normalize(); |
| 5597 | } |
| 5598 | |
| 5599 | CmdArgs.push_back(TCArgs.MakeArgString(Triples)); |
| 5600 | |
| 5601 | // Get bundled file command. |
| 5602 | CmdArgs.push_back( |
| 5603 | TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename())); |
| 5604 | |
| 5605 | // Get unbundled files command. |
| 5606 | SmallString<128> UB; |
| 5607 | UB += "-outputs="; |
| 5608 | for (unsigned I = 0; I < Outputs.size(); ++I) { |
| 5609 | if (I) |
| 5610 | UB += ','; |
| 5611 | UB += DepInfo[I].DependentToolChain->getInputFilename(Outputs[I]); |
| 5612 | } |
| 5613 | CmdArgs.push_back(TCArgs.MakeArgString(UB)); |
| 5614 | CmdArgs.push_back("-unbundle"); |
| 5615 | |
| 5616 | // All the inputs are encoded as commands. |
| 5617 | C.addCommand(llvm::make_unique<Command>( |
| 5618 | JA, *this, |
| 5619 | TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), |
| 5620 | CmdArgs, None)); |
| 5621 | } |