File: | tools/clang/lib/Driver/ToolChains/Clang.cpp |
Warning: | line 3142, column 5 Value stored to 'IsWindowsGNU' is never read |
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1 | //===--- LLVM.cpp - Clang+LLVM ToolChain Implementations --------*- C++ -*-===// |
2 | // |
3 | // The LLVM Compiler Infrastructure |
4 | // |
5 | // This file is distributed under the University of Illinois Open Source |
6 | // License. See LICENSE.TXT for details. |
7 | // |
8 | //===----------------------------------------------------------------------===// |
9 | |
10 | #include "Clang.h" |
11 | #include "Arch/AArch64.h" |
12 | #include "Arch/ARM.h" |
13 | #include "Arch/Mips.h" |
14 | #include "Arch/PPC.h" |
15 | #include "Arch/RISCV.h" |
16 | #include "Arch/Sparc.h" |
17 | #include "Arch/SystemZ.h" |
18 | #include "Arch/X86.h" |
19 | #include "AMDGPU.h" |
20 | #include "CommonArgs.h" |
21 | #include "Hexagon.h" |
22 | #include "InputInfo.h" |
23 | #include "PS4CPU.h" |
24 | #include "clang/Basic/CharInfo.h" |
25 | #include "clang/Basic/LangOptions.h" |
26 | #include "clang/Basic/ObjCRuntime.h" |
27 | #include "clang/Basic/Version.h" |
28 | #include "clang/Driver/DriverDiagnostic.h" |
29 | #include "clang/Driver/Options.h" |
30 | #include "clang/Driver/SanitizerArgs.h" |
31 | #include "clang/Driver/XRayArgs.h" |
32 | #include "llvm/ADT/StringExtras.h" |
33 | #include "llvm/Config/llvm-config.h" |
34 | #include "llvm/Option/ArgList.h" |
35 | #include "llvm/Support/CodeGen.h" |
36 | #include "llvm/Support/Compression.h" |
37 | #include "llvm/Support/FileSystem.h" |
38 | #include "llvm/Support/Path.h" |
39 | #include "llvm/Support/Process.h" |
40 | #include "llvm/Support/TargetParser.h" |
41 | #include "llvm/Support/YAMLParser.h" |
42 | |
43 | #ifdef LLVM_ON_UNIX1 |
44 | #include <unistd.h> // For getuid(). |
45 | #endif |
46 | |
47 | using namespace clang::driver; |
48 | using namespace clang::driver::tools; |
49 | using namespace clang; |
50 | using namespace llvm::opt; |
51 | |
52 | static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) { |
53 | if (Arg *A = |
54 | Args.getLastArg(clang::driver::options::OPT_C, options::OPT_CC)) { |
55 | if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_P) && |
56 | !Args.hasArg(options::OPT__SLASH_EP) && !D.CCCIsCPP()) { |
57 | D.Diag(clang::diag::err_drv_argument_only_allowed_with) |
58 | << A->getBaseArg().getAsString(Args) |
59 | << (D.IsCLMode() ? "/E, /P or /EP" : "-E"); |
60 | } |
61 | } |
62 | } |
63 | |
64 | static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) { |
65 | // In gcc, only ARM checks this, but it seems reasonable to check universally. |
66 | if (Args.hasArg(options::OPT_static)) |
67 | if (const Arg *A = |
68 | Args.getLastArg(options::OPT_dynamic, options::OPT_mdynamic_no_pic)) |
69 | D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) |
70 | << "-static"; |
71 | } |
72 | |
73 | // Add backslashes to escape spaces and other backslashes. |
74 | // This is used for the space-separated argument list specified with |
75 | // the -dwarf-debug-flags option. |
76 | static void EscapeSpacesAndBackslashes(const char *Arg, |
77 | SmallVectorImpl<char> &Res) { |
78 | for (; *Arg; ++Arg) { |
79 | switch (*Arg) { |
80 | default: |
81 | break; |
82 | case ' ': |
83 | case '\\': |
84 | Res.push_back('\\'); |
85 | break; |
86 | } |
87 | Res.push_back(*Arg); |
88 | } |
89 | } |
90 | |
91 | // Quote target names for inclusion in GNU Make dependency files. |
92 | // Only the characters '$', '#', ' ', '\t' are quoted. |
93 | static void QuoteTarget(StringRef Target, SmallVectorImpl<char> &Res) { |
94 | for (unsigned i = 0, e = Target.size(); i != e; ++i) { |
95 | switch (Target[i]) { |
96 | case ' ': |
97 | case '\t': |
98 | // Escape the preceding backslashes |
99 | for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j) |
100 | Res.push_back('\\'); |
101 | |
102 | // Escape the space/tab |
103 | Res.push_back('\\'); |
104 | break; |
105 | case '$': |
106 | Res.push_back('$'); |
107 | break; |
108 | case '#': |
109 | Res.push_back('\\'); |
110 | break; |
111 | default: |
112 | break; |
113 | } |
114 | |
115 | Res.push_back(Target[i]); |
116 | } |
117 | } |
118 | |
119 | /// Apply \a Work on the current tool chain \a RegularToolChain and any other |
120 | /// offloading tool chain that is associated with the current action \a JA. |
121 | static void |
122 | forAllAssociatedToolChains(Compilation &C, const JobAction &JA, |
123 | const ToolChain &RegularToolChain, |
124 | llvm::function_ref<void(const ToolChain &)> Work) { |
125 | // Apply Work on the current/regular tool chain. |
126 | Work(RegularToolChain); |
127 | |
128 | // Apply Work on all the offloading tool chains associated with the current |
129 | // action. |
130 | if (JA.isHostOffloading(Action::OFK_Cuda)) |
131 | Work(*C.getSingleOffloadToolChain<Action::OFK_Cuda>()); |
132 | else if (JA.isDeviceOffloading(Action::OFK_Cuda)) |
133 | Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); |
134 | else if (JA.isHostOffloading(Action::OFK_HIP)) |
135 | Work(*C.getSingleOffloadToolChain<Action::OFK_HIP>()); |
136 | else if (JA.isDeviceOffloading(Action::OFK_HIP)) |
137 | Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); |
138 | |
139 | if (JA.isHostOffloading(Action::OFK_OpenMP)) { |
140 | auto TCs = C.getOffloadToolChains<Action::OFK_OpenMP>(); |
141 | for (auto II = TCs.first, IE = TCs.second; II != IE; ++II) |
142 | Work(*II->second); |
143 | } else if (JA.isDeviceOffloading(Action::OFK_OpenMP)) |
144 | Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); |
145 | |
146 | // |
147 | // TODO: Add support for other offloading programming models here. |
148 | // |
149 | } |
150 | |
151 | /// This is a helper function for validating the optional refinement step |
152 | /// parameter in reciprocal argument strings. Return false if there is an error |
153 | /// parsing the refinement step. Otherwise, return true and set the Position |
154 | /// of the refinement step in the input string. |
155 | static bool getRefinementStep(StringRef In, const Driver &D, |
156 | const Arg &A, size_t &Position) { |
157 | const char RefinementStepToken = ':'; |
158 | Position = In.find(RefinementStepToken); |
159 | if (Position != StringRef::npos) { |
160 | StringRef Option = A.getOption().getName(); |
161 | StringRef RefStep = In.substr(Position + 1); |
162 | // Allow exactly one numeric character for the additional refinement |
163 | // step parameter. This is reasonable for all currently-supported |
164 | // operations and architectures because we would expect that a larger value |
165 | // of refinement steps would cause the estimate "optimization" to |
166 | // under-perform the native operation. Also, if the estimate does not |
167 | // converge quickly, it probably will not ever converge, so further |
168 | // refinement steps will not produce a better answer. |
169 | if (RefStep.size() != 1) { |
170 | D.Diag(diag::err_drv_invalid_value) << Option << RefStep; |
171 | return false; |
172 | } |
173 | char RefStepChar = RefStep[0]; |
174 | if (RefStepChar < '0' || RefStepChar > '9') { |
175 | D.Diag(diag::err_drv_invalid_value) << Option << RefStep; |
176 | return false; |
177 | } |
178 | } |
179 | return true; |
180 | } |
181 | |
182 | /// The -mrecip flag requires processing of many optional parameters. |
183 | static void ParseMRecip(const Driver &D, const ArgList &Args, |
184 | ArgStringList &OutStrings) { |
185 | StringRef DisabledPrefixIn = "!"; |
186 | StringRef DisabledPrefixOut = "!"; |
187 | StringRef EnabledPrefixOut = ""; |
188 | StringRef Out = "-mrecip="; |
189 | |
190 | Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ); |
191 | if (!A) |
192 | return; |
193 | |
194 | unsigned NumOptions = A->getNumValues(); |
195 | if (NumOptions == 0) { |
196 | // No option is the same as "all". |
197 | OutStrings.push_back(Args.MakeArgString(Out + "all")); |
198 | return; |
199 | } |
200 | |
201 | // Pass through "all", "none", or "default" with an optional refinement step. |
202 | if (NumOptions == 1) { |
203 | StringRef Val = A->getValue(0); |
204 | size_t RefStepLoc; |
205 | if (!getRefinementStep(Val, D, *A, RefStepLoc)) |
206 | return; |
207 | StringRef ValBase = Val.slice(0, RefStepLoc); |
208 | if (ValBase == "all" || ValBase == "none" || ValBase == "default") { |
209 | OutStrings.push_back(Args.MakeArgString(Out + Val)); |
210 | return; |
211 | } |
212 | } |
213 | |
214 | // Each reciprocal type may be enabled or disabled individually. |
215 | // Check each input value for validity, concatenate them all back together, |
216 | // and pass through. |
217 | |
218 | llvm::StringMap<bool> OptionStrings; |
219 | OptionStrings.insert(std::make_pair("divd", false)); |
220 | OptionStrings.insert(std::make_pair("divf", false)); |
221 | OptionStrings.insert(std::make_pair("vec-divd", false)); |
222 | OptionStrings.insert(std::make_pair("vec-divf", false)); |
223 | OptionStrings.insert(std::make_pair("sqrtd", false)); |
224 | OptionStrings.insert(std::make_pair("sqrtf", false)); |
225 | OptionStrings.insert(std::make_pair("vec-sqrtd", false)); |
226 | OptionStrings.insert(std::make_pair("vec-sqrtf", false)); |
227 | |
228 | for (unsigned i = 0; i != NumOptions; ++i) { |
229 | StringRef Val = A->getValue(i); |
230 | |
231 | bool IsDisabled = Val.startswith(DisabledPrefixIn); |
232 | // Ignore the disablement token for string matching. |
233 | if (IsDisabled) |
234 | Val = Val.substr(1); |
235 | |
236 | size_t RefStep; |
237 | if (!getRefinementStep(Val, D, *A, RefStep)) |
238 | return; |
239 | |
240 | StringRef ValBase = Val.slice(0, RefStep); |
241 | llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase); |
242 | if (OptionIter == OptionStrings.end()) { |
243 | // Try again specifying float suffix. |
244 | OptionIter = OptionStrings.find(ValBase.str() + 'f'); |
245 | if (OptionIter == OptionStrings.end()) { |
246 | // The input name did not match any known option string. |
247 | D.Diag(diag::err_drv_unknown_argument) << Val; |
248 | return; |
249 | } |
250 | // The option was specified without a float or double suffix. |
251 | // Make sure that the double entry was not already specified. |
252 | // The float entry will be checked below. |
253 | if (OptionStrings[ValBase.str() + 'd']) { |
254 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; |
255 | return; |
256 | } |
257 | } |
258 | |
259 | if (OptionIter->second == true) { |
260 | // Duplicate option specified. |
261 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; |
262 | return; |
263 | } |
264 | |
265 | // Mark the matched option as found. Do not allow duplicate specifiers. |
266 | OptionIter->second = true; |
267 | |
268 | // If the precision was not specified, also mark the double entry as found. |
269 | if (ValBase.back() != 'f' && ValBase.back() != 'd') |
270 | OptionStrings[ValBase.str() + 'd'] = true; |
271 | |
272 | // Build the output string. |
273 | StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut; |
274 | Out = Args.MakeArgString(Out + Prefix + Val); |
275 | if (i != NumOptions - 1) |
276 | Out = Args.MakeArgString(Out + ","); |
277 | } |
278 | |
279 | OutStrings.push_back(Args.MakeArgString(Out)); |
280 | } |
281 | |
282 | /// The -mprefer-vector-width option accepts either a positive integer |
283 | /// or the string "none". |
284 | static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args, |
285 | ArgStringList &CmdArgs) { |
286 | Arg *A = Args.getLastArg(options::OPT_mprefer_vector_width_EQ); |
287 | if (!A) |
288 | return; |
289 | |
290 | StringRef Value = A->getValue(); |
291 | if (Value == "none") { |
292 | CmdArgs.push_back("-mprefer-vector-width=none"); |
293 | } else { |
294 | unsigned Width; |
295 | if (Value.getAsInteger(10, Width)) { |
296 | D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Value; |
297 | return; |
298 | } |
299 | CmdArgs.push_back(Args.MakeArgString("-mprefer-vector-width=" + Value)); |
300 | } |
301 | } |
302 | |
303 | static void getWebAssemblyTargetFeatures(const ArgList &Args, |
304 | std::vector<StringRef> &Features) { |
305 | handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group); |
306 | } |
307 | |
308 | static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, |
309 | const ArgList &Args, ArgStringList &CmdArgs, |
310 | bool ForAS) { |
311 | const Driver &D = TC.getDriver(); |
312 | std::vector<StringRef> Features; |
313 | switch (Triple.getArch()) { |
314 | default: |
315 | break; |
316 | case llvm::Triple::mips: |
317 | case llvm::Triple::mipsel: |
318 | case llvm::Triple::mips64: |
319 | case llvm::Triple::mips64el: |
320 | mips::getMIPSTargetFeatures(D, Triple, Args, Features); |
321 | break; |
322 | |
323 | case llvm::Triple::arm: |
324 | case llvm::Triple::armeb: |
325 | case llvm::Triple::thumb: |
326 | case llvm::Triple::thumbeb: |
327 | arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS); |
328 | break; |
329 | |
330 | case llvm::Triple::ppc: |
331 | case llvm::Triple::ppc64: |
332 | case llvm::Triple::ppc64le: |
333 | ppc::getPPCTargetFeatures(D, Triple, Args, Features); |
334 | break; |
335 | case llvm::Triple::riscv32: |
336 | case llvm::Triple::riscv64: |
337 | riscv::getRISCVTargetFeatures(D, Args, Features); |
338 | break; |
339 | case llvm::Triple::systemz: |
340 | systemz::getSystemZTargetFeatures(Args, Features); |
341 | break; |
342 | case llvm::Triple::aarch64: |
343 | case llvm::Triple::aarch64_be: |
344 | aarch64::getAArch64TargetFeatures(D, Args, Features); |
345 | break; |
346 | case llvm::Triple::x86: |
347 | case llvm::Triple::x86_64: |
348 | x86::getX86TargetFeatures(D, Triple, Args, Features); |
349 | break; |
350 | case llvm::Triple::hexagon: |
351 | hexagon::getHexagonTargetFeatures(D, Args, Features); |
352 | break; |
353 | case llvm::Triple::wasm32: |
354 | case llvm::Triple::wasm64: |
355 | getWebAssemblyTargetFeatures(Args, Features); |
356 | break; |
357 | case llvm::Triple::sparc: |
358 | case llvm::Triple::sparcel: |
359 | case llvm::Triple::sparcv9: |
360 | sparc::getSparcTargetFeatures(D, Args, Features); |
361 | break; |
362 | case llvm::Triple::r600: |
363 | case llvm::Triple::amdgcn: |
364 | amdgpu::getAMDGPUTargetFeatures(D, Args, Features); |
365 | break; |
366 | } |
367 | |
368 | // Find the last of each feature. |
369 | llvm::StringMap<unsigned> LastOpt; |
370 | for (unsigned I = 0, N = Features.size(); I < N; ++I) { |
371 | StringRef Name = Features[I]; |
372 | assert(Name[0] == '-' || Name[0] == '+')(static_cast <bool> (Name[0] == '-' || Name[0] == '+') ? void (0) : __assert_fail ("Name[0] == '-' || Name[0] == '+'" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 372, __extension__ __PRETTY_FUNCTION__)); |
373 | LastOpt[Name.drop_front(1)] = I; |
374 | } |
375 | |
376 | for (unsigned I = 0, N = Features.size(); I < N; ++I) { |
377 | // If this feature was overridden, ignore it. |
378 | StringRef Name = Features[I]; |
379 | llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1)); |
380 | assert(LastI != LastOpt.end())(static_cast <bool> (LastI != LastOpt.end()) ? void (0) : __assert_fail ("LastI != LastOpt.end()", "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 380, __extension__ __PRETTY_FUNCTION__)); |
381 | unsigned Last = LastI->second; |
382 | if (Last != I) |
383 | continue; |
384 | |
385 | CmdArgs.push_back("-target-feature"); |
386 | CmdArgs.push_back(Name.data()); |
387 | } |
388 | } |
389 | |
390 | static bool |
391 | shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime, |
392 | const llvm::Triple &Triple) { |
393 | // We use the zero-cost exception tables for Objective-C if the non-fragile |
394 | // ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and |
395 | // later. |
396 | if (runtime.isNonFragile()) |
397 | return true; |
398 | |
399 | if (!Triple.isMacOSX()) |
400 | return false; |
401 | |
402 | return (!Triple.isMacOSXVersionLT(10, 5) && |
403 | (Triple.getArch() == llvm::Triple::x86_64 || |
404 | Triple.getArch() == llvm::Triple::arm)); |
405 | } |
406 | |
407 | /// Adds exception related arguments to the driver command arguments. There's a |
408 | /// master flag, -fexceptions and also language specific flags to enable/disable |
409 | /// C++ and Objective-C exceptions. This makes it possible to for example |
410 | /// disable C++ exceptions but enable Objective-C exceptions. |
411 | static void addExceptionArgs(const ArgList &Args, types::ID InputType, |
412 | const ToolChain &TC, bool KernelOrKext, |
413 | const ObjCRuntime &objcRuntime, |
414 | ArgStringList &CmdArgs) { |
415 | const llvm::Triple &Triple = TC.getTriple(); |
416 | |
417 | if (KernelOrKext) { |
418 | // -mkernel and -fapple-kext imply no exceptions, so claim exception related |
419 | // arguments now to avoid warnings about unused arguments. |
420 | Args.ClaimAllArgs(options::OPT_fexceptions); |
421 | Args.ClaimAllArgs(options::OPT_fno_exceptions); |
422 | Args.ClaimAllArgs(options::OPT_fobjc_exceptions); |
423 | Args.ClaimAllArgs(options::OPT_fno_objc_exceptions); |
424 | Args.ClaimAllArgs(options::OPT_fcxx_exceptions); |
425 | Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions); |
426 | return; |
427 | } |
428 | |
429 | // See if the user explicitly enabled exceptions. |
430 | bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, |
431 | false); |
432 | |
433 | // Obj-C exceptions are enabled by default, regardless of -fexceptions. This |
434 | // is not necessarily sensible, but follows GCC. |
435 | if (types::isObjC(InputType) && |
436 | Args.hasFlag(options::OPT_fobjc_exceptions, |
437 | options::OPT_fno_objc_exceptions, true)) { |
438 | CmdArgs.push_back("-fobjc-exceptions"); |
439 | |
440 | EH |= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple); |
441 | } |
442 | |
443 | if (types::isCXX(InputType)) { |
444 | // Disable C++ EH by default on XCore and PS4. |
445 | bool CXXExceptionsEnabled = |
446 | Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU(); |
447 | Arg *ExceptionArg = Args.getLastArg( |
448 | options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions, |
449 | options::OPT_fexceptions, options::OPT_fno_exceptions); |
450 | if (ExceptionArg) |
451 | CXXExceptionsEnabled = |
452 | ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) || |
453 | ExceptionArg->getOption().matches(options::OPT_fexceptions); |
454 | |
455 | if (CXXExceptionsEnabled) { |
456 | CmdArgs.push_back("-fcxx-exceptions"); |
457 | |
458 | EH = true; |
459 | } |
460 | } |
461 | |
462 | if (EH) |
463 | CmdArgs.push_back("-fexceptions"); |
464 | } |
465 | |
466 | static bool ShouldDisableAutolink(const ArgList &Args, const ToolChain &TC) { |
467 | bool Default = true; |
468 | if (TC.getTriple().isOSDarwin()) { |
469 | // The native darwin assembler doesn't support the linker_option directives, |
470 | // so we disable them if we think the .s file will be passed to it. |
471 | Default = TC.useIntegratedAs(); |
472 | } |
473 | return !Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink, |
474 | Default); |
475 | } |
476 | |
477 | static bool ShouldDisableDwarfDirectory(const ArgList &Args, |
478 | const ToolChain &TC) { |
479 | bool UseDwarfDirectory = |
480 | Args.hasFlag(options::OPT_fdwarf_directory_asm, |
481 | options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs()); |
482 | return !UseDwarfDirectory; |
483 | } |
484 | |
485 | // Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases |
486 | // to the corresponding DebugInfoKind. |
487 | static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) { |
488 | assert(A.getOption().matches(options::OPT_gN_Group) &&(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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 489, __extension__ __PRETTY_FUNCTION__)) |
489 | "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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 489, __extension__ __PRETTY_FUNCTION__)); |
490 | if (A.getOption().matches(options::OPT_g0) || |
491 | A.getOption().matches(options::OPT_ggdb0)) |
492 | return codegenoptions::NoDebugInfo; |
493 | if (A.getOption().matches(options::OPT_gline_tables_only) || |
494 | A.getOption().matches(options::OPT_ggdb1)) |
495 | return codegenoptions::DebugLineTablesOnly; |
496 | return codegenoptions::LimitedDebugInfo; |
497 | } |
498 | |
499 | static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) { |
500 | switch (Triple.getArch()){ |
501 | default: |
502 | return false; |
503 | case llvm::Triple::arm: |
504 | case llvm::Triple::thumb: |
505 | // ARM Darwin targets require a frame pointer to be always present to aid |
506 | // offline debugging via backtraces. |
507 | return Triple.isOSDarwin(); |
508 | } |
509 | } |
510 | |
511 | static bool useFramePointerForTargetByDefault(const ArgList &Args, |
512 | const llvm::Triple &Triple) { |
513 | switch (Triple.getArch()) { |
514 | case llvm::Triple::xcore: |
515 | case llvm::Triple::wasm32: |
516 | case llvm::Triple::wasm64: |
517 | // XCore never wants frame pointers, regardless of OS. |
518 | // WebAssembly never wants frame pointers. |
519 | return false; |
520 | case llvm::Triple::riscv32: |
521 | case llvm::Triple::riscv64: |
522 | return !areOptimizationsEnabled(Args); |
523 | default: |
524 | break; |
525 | } |
526 | |
527 | if (Triple.getOS() == llvm::Triple::NetBSD) { |
528 | return !areOptimizationsEnabled(Args); |
529 | } |
530 | |
531 | if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI) { |
532 | switch (Triple.getArch()) { |
533 | // Don't use a frame pointer on linux if optimizing for certain targets. |
534 | case llvm::Triple::mips64: |
535 | case llvm::Triple::mips64el: |
536 | case llvm::Triple::mips: |
537 | case llvm::Triple::mipsel: |
538 | case llvm::Triple::ppc: |
539 | case llvm::Triple::ppc64: |
540 | case llvm::Triple::ppc64le: |
541 | case llvm::Triple::systemz: |
542 | case llvm::Triple::x86: |
543 | case llvm::Triple::x86_64: |
544 | return !areOptimizationsEnabled(Args); |
545 | default: |
546 | return true; |
547 | } |
548 | } |
549 | |
550 | if (Triple.isOSWindows()) { |
551 | switch (Triple.getArch()) { |
552 | case llvm::Triple::x86: |
553 | return !areOptimizationsEnabled(Args); |
554 | case llvm::Triple::x86_64: |
555 | return Triple.isOSBinFormatMachO(); |
556 | case llvm::Triple::arm: |
557 | case llvm::Triple::thumb: |
558 | // Windows on ARM builds with FPO disabled to aid fast stack walking |
559 | return true; |
560 | default: |
561 | // All other supported Windows ISAs use xdata unwind information, so frame |
562 | // pointers are not generally useful. |
563 | return false; |
564 | } |
565 | } |
566 | |
567 | return true; |
568 | } |
569 | |
570 | static bool shouldUseFramePointer(const ArgList &Args, |
571 | const llvm::Triple &Triple) { |
572 | if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer, |
573 | options::OPT_fomit_frame_pointer)) |
574 | return A->getOption().matches(options::OPT_fno_omit_frame_pointer) || |
575 | mustUseNonLeafFramePointerForTarget(Triple); |
576 | |
577 | if (Args.hasArg(options::OPT_pg)) |
578 | return true; |
579 | |
580 | return useFramePointerForTargetByDefault(Args, Triple); |
581 | } |
582 | |
583 | static bool shouldUseLeafFramePointer(const ArgList &Args, |
584 | const llvm::Triple &Triple) { |
585 | if (Arg *A = Args.getLastArg(options::OPT_mno_omit_leaf_frame_pointer, |
586 | options::OPT_momit_leaf_frame_pointer)) |
587 | return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer); |
588 | |
589 | if (Args.hasArg(options::OPT_pg)) |
590 | return true; |
591 | |
592 | if (Triple.isPS4CPU()) |
593 | return false; |
594 | |
595 | return useFramePointerForTargetByDefault(Args, Triple); |
596 | } |
597 | |
598 | /// Add a CC1 option to specify the debug compilation directory. |
599 | static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) { |
600 | SmallString<128> cwd; |
601 | if (!llvm::sys::fs::current_path(cwd)) { |
602 | CmdArgs.push_back("-fdebug-compilation-dir"); |
603 | CmdArgs.push_back(Args.MakeArgString(cwd)); |
604 | } |
605 | } |
606 | |
607 | /// Add a CC1 and CC1AS option to specify the debug file path prefix map. |
608 | static void addDebugPrefixMapArg(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs) { |
609 | for (const Arg *A : Args.filtered(options::OPT_fdebug_prefix_map_EQ)) { |
610 | StringRef Map = A->getValue(); |
611 | if (Map.find('=') == StringRef::npos) |
612 | D.Diag(diag::err_drv_invalid_argument_to_fdebug_prefix_map) << Map; |
613 | else |
614 | CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map)); |
615 | A->claim(); |
616 | } |
617 | } |
618 | |
619 | /// Vectorize at all optimization levels greater than 1 except for -Oz. |
620 | /// For -Oz the loop vectorizer is disable, while the slp vectorizer is enabled. |
621 | static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) { |
622 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
623 | if (A->getOption().matches(options::OPT_O4) || |
624 | A->getOption().matches(options::OPT_Ofast)) |
625 | return true; |
626 | |
627 | if (A->getOption().matches(options::OPT_O0)) |
628 | return false; |
629 | |
630 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 630, __extension__ __PRETTY_FUNCTION__)); |
631 | |
632 | // Vectorize -Os. |
633 | StringRef S(A->getValue()); |
634 | if (S == "s") |
635 | return true; |
636 | |
637 | // Don't vectorize -Oz, unless it's the slp vectorizer. |
638 | if (S == "z") |
639 | return isSlpVec; |
640 | |
641 | unsigned OptLevel = 0; |
642 | if (S.getAsInteger(10, OptLevel)) |
643 | return false; |
644 | |
645 | return OptLevel > 1; |
646 | } |
647 | |
648 | return false; |
649 | } |
650 | |
651 | /// Add -x lang to \p CmdArgs for \p Input. |
652 | static void addDashXForInput(const ArgList &Args, const InputInfo &Input, |
653 | ArgStringList &CmdArgs) { |
654 | // When using -verify-pch, we don't want to provide the type |
655 | // 'precompiled-header' if it was inferred from the file extension |
656 | if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH) |
657 | return; |
658 | |
659 | CmdArgs.push_back("-x"); |
660 | if (Args.hasArg(options::OPT_rewrite_objc)) |
661 | CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX)); |
662 | else { |
663 | // Map the driver type to the frontend type. This is mostly an identity |
664 | // mapping, except that the distinction between module interface units |
665 | // and other source files does not exist at the frontend layer. |
666 | const char *ClangType; |
667 | switch (Input.getType()) { |
668 | case types::TY_CXXModule: |
669 | ClangType = "c++"; |
670 | break; |
671 | case types::TY_PP_CXXModule: |
672 | ClangType = "c++-cpp-output"; |
673 | break; |
674 | default: |
675 | ClangType = types::getTypeName(Input.getType()); |
676 | break; |
677 | } |
678 | CmdArgs.push_back(ClangType); |
679 | } |
680 | } |
681 | |
682 | static void appendUserToPath(SmallVectorImpl<char> &Result) { |
683 | #ifdef LLVM_ON_UNIX1 |
684 | const char *Username = getenv("LOGNAME"); |
685 | #else |
686 | const char *Username = getenv("USERNAME"); |
687 | #endif |
688 | if (Username) { |
689 | // Validate that LoginName can be used in a path, and get its length. |
690 | size_t Len = 0; |
691 | for (const char *P = Username; *P; ++P, ++Len) { |
692 | if (!clang::isAlphanumeric(*P) && *P != '_') { |
693 | Username = nullptr; |
694 | break; |
695 | } |
696 | } |
697 | |
698 | if (Username && Len > 0) { |
699 | Result.append(Username, Username + Len); |
700 | return; |
701 | } |
702 | } |
703 | |
704 | // Fallback to user id. |
705 | #ifdef LLVM_ON_UNIX1 |
706 | std::string UID = llvm::utostr(getuid()); |
707 | #else |
708 | // FIXME: Windows seems to have an 'SID' that might work. |
709 | std::string UID = "9999"; |
710 | #endif |
711 | Result.append(UID.begin(), UID.end()); |
712 | } |
713 | |
714 | static void addPGOAndCoverageFlags(Compilation &C, const Driver &D, |
715 | const InputInfo &Output, const ArgList &Args, |
716 | ArgStringList &CmdArgs) { |
717 | |
718 | auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate, |
719 | options::OPT_fprofile_generate_EQ, |
720 | options::OPT_fno_profile_generate); |
721 | if (PGOGenerateArg && |
722 | PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate)) |
723 | PGOGenerateArg = nullptr; |
724 | |
725 | auto *ProfileGenerateArg = Args.getLastArg( |
726 | options::OPT_fprofile_instr_generate, |
727 | options::OPT_fprofile_instr_generate_EQ, |
728 | options::OPT_fno_profile_instr_generate); |
729 | if (ProfileGenerateArg && |
730 | ProfileGenerateArg->getOption().matches( |
731 | options::OPT_fno_profile_instr_generate)) |
732 | ProfileGenerateArg = nullptr; |
733 | |
734 | if (PGOGenerateArg && ProfileGenerateArg) |
735 | D.Diag(diag::err_drv_argument_not_allowed_with) |
736 | << PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling(); |
737 | |
738 | auto *ProfileUseArg = getLastProfileUseArg(Args); |
739 | |
740 | if (PGOGenerateArg && ProfileUseArg) |
741 | D.Diag(diag::err_drv_argument_not_allowed_with) |
742 | << ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling(); |
743 | |
744 | if (ProfileGenerateArg && ProfileUseArg) |
745 | D.Diag(diag::err_drv_argument_not_allowed_with) |
746 | << ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling(); |
747 | |
748 | if (ProfileGenerateArg) { |
749 | if (ProfileGenerateArg->getOption().matches( |
750 | options::OPT_fprofile_instr_generate_EQ)) |
751 | CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") + |
752 | ProfileGenerateArg->getValue())); |
753 | // The default is to use Clang Instrumentation. |
754 | CmdArgs.push_back("-fprofile-instrument=clang"); |
755 | } |
756 | |
757 | if (PGOGenerateArg) { |
758 | CmdArgs.push_back("-fprofile-instrument=llvm"); |
759 | if (PGOGenerateArg->getOption().matches( |
760 | options::OPT_fprofile_generate_EQ)) { |
761 | SmallString<128> Path(PGOGenerateArg->getValue()); |
762 | llvm::sys::path::append(Path, "default_%m.profraw"); |
763 | CmdArgs.push_back( |
764 | Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path)); |
765 | } |
766 | } |
767 | |
768 | if (ProfileUseArg) { |
769 | if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ)) |
770 | CmdArgs.push_back(Args.MakeArgString( |
771 | Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue())); |
772 | else if ((ProfileUseArg->getOption().matches( |
773 | options::OPT_fprofile_use_EQ) || |
774 | ProfileUseArg->getOption().matches( |
775 | options::OPT_fprofile_instr_use))) { |
776 | SmallString<128> Path( |
777 | ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue()); |
778 | if (Path.empty() || llvm::sys::fs::is_directory(Path)) |
779 | llvm::sys::path::append(Path, "default.profdata"); |
780 | CmdArgs.push_back( |
781 | Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path)); |
782 | } |
783 | } |
784 | |
785 | if (Args.hasArg(options::OPT_ftest_coverage) || |
786 | Args.hasArg(options::OPT_coverage)) |
787 | CmdArgs.push_back("-femit-coverage-notes"); |
788 | if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, |
789 | false) || |
790 | Args.hasArg(options::OPT_coverage)) |
791 | CmdArgs.push_back("-femit-coverage-data"); |
792 | |
793 | if (Args.hasFlag(options::OPT_fcoverage_mapping, |
794 | options::OPT_fno_coverage_mapping, false)) { |
795 | if (!ProfileGenerateArg) |
796 | D.Diag(clang::diag::err_drv_argument_only_allowed_with) |
797 | << "-fcoverage-mapping" |
798 | << "-fprofile-instr-generate"; |
799 | |
800 | CmdArgs.push_back("-fcoverage-mapping"); |
801 | } |
802 | |
803 | if (C.getArgs().hasArg(options::OPT_c) || |
804 | C.getArgs().hasArg(options::OPT_S)) { |
805 | if (Output.isFilename()) { |
806 | CmdArgs.push_back("-coverage-notes-file"); |
807 | SmallString<128> OutputFilename; |
808 | if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) |
809 | OutputFilename = FinalOutput->getValue(); |
810 | else |
811 | OutputFilename = llvm::sys::path::filename(Output.getBaseInput()); |
812 | SmallString<128> CoverageFilename = OutputFilename; |
813 | if (llvm::sys::path::is_relative(CoverageFilename)) { |
814 | SmallString<128> Pwd; |
815 | if (!llvm::sys::fs::current_path(Pwd)) { |
816 | llvm::sys::path::append(Pwd, CoverageFilename); |
817 | CoverageFilename.swap(Pwd); |
818 | } |
819 | } |
820 | llvm::sys::path::replace_extension(CoverageFilename, "gcno"); |
821 | CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); |
822 | |
823 | // Leave -fprofile-dir= an unused argument unless .gcda emission is |
824 | // enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider |
825 | // the flag used. There is no -fno-profile-dir, so the user has no |
826 | // targeted way to suppress the warning. |
827 | if (Args.hasArg(options::OPT_fprofile_arcs) || |
828 | Args.hasArg(options::OPT_coverage)) { |
829 | CmdArgs.push_back("-coverage-data-file"); |
830 | if (Arg *FProfileDir = Args.getLastArg(options::OPT_fprofile_dir)) { |
831 | CoverageFilename = FProfileDir->getValue(); |
832 | llvm::sys::path::append(CoverageFilename, OutputFilename); |
833 | } |
834 | llvm::sys::path::replace_extension(CoverageFilename, "gcda"); |
835 | CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); |
836 | } |
837 | } |
838 | } |
839 | } |
840 | |
841 | /// Check whether the given input tree contains any compilation actions. |
842 | static bool ContainsCompileAction(const Action *A) { |
843 | if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A)) |
844 | return true; |
845 | |
846 | for (const auto &AI : A->inputs()) |
847 | if (ContainsCompileAction(AI)) |
848 | return true; |
849 | |
850 | return false; |
851 | } |
852 | |
853 | /// Check if -relax-all should be passed to the internal assembler. |
854 | /// This is done by default when compiling non-assembler source with -O0. |
855 | static bool UseRelaxAll(Compilation &C, const ArgList &Args) { |
856 | bool RelaxDefault = true; |
857 | |
858 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) |
859 | RelaxDefault = A->getOption().matches(options::OPT_O0); |
860 | |
861 | if (RelaxDefault) { |
862 | RelaxDefault = false; |
863 | for (const auto &Act : C.getActions()) { |
864 | if (ContainsCompileAction(Act)) { |
865 | RelaxDefault = true; |
866 | break; |
867 | } |
868 | } |
869 | } |
870 | |
871 | return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all, |
872 | RelaxDefault); |
873 | } |
874 | |
875 | // Extract the integer N from a string spelled "-dwarf-N", returning 0 |
876 | // on mismatch. The StringRef input (rather than an Arg) allows |
877 | // for use by the "-Xassembler" option parser. |
878 | static unsigned DwarfVersionNum(StringRef ArgValue) { |
879 | return llvm::StringSwitch<unsigned>(ArgValue) |
880 | .Case("-gdwarf-2", 2) |
881 | .Case("-gdwarf-3", 3) |
882 | .Case("-gdwarf-4", 4) |
883 | .Case("-gdwarf-5", 5) |
884 | .Default(0); |
885 | } |
886 | |
887 | static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs, |
888 | codegenoptions::DebugInfoKind DebugInfoKind, |
889 | unsigned DwarfVersion, |
890 | llvm::DebuggerKind DebuggerTuning) { |
891 | switch (DebugInfoKind) { |
892 | case codegenoptions::DebugLineTablesOnly: |
893 | CmdArgs.push_back("-debug-info-kind=line-tables-only"); |
894 | break; |
895 | case codegenoptions::LimitedDebugInfo: |
896 | CmdArgs.push_back("-debug-info-kind=limited"); |
897 | break; |
898 | case codegenoptions::FullDebugInfo: |
899 | CmdArgs.push_back("-debug-info-kind=standalone"); |
900 | break; |
901 | default: |
902 | break; |
903 | } |
904 | if (DwarfVersion > 0) |
905 | CmdArgs.push_back( |
906 | Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion))); |
907 | switch (DebuggerTuning) { |
908 | case llvm::DebuggerKind::GDB: |
909 | CmdArgs.push_back("-debugger-tuning=gdb"); |
910 | break; |
911 | case llvm::DebuggerKind::LLDB: |
912 | CmdArgs.push_back("-debugger-tuning=lldb"); |
913 | break; |
914 | case llvm::DebuggerKind::SCE: |
915 | CmdArgs.push_back("-debugger-tuning=sce"); |
916 | break; |
917 | default: |
918 | break; |
919 | } |
920 | } |
921 | |
922 | static bool checkDebugInfoOption(const Arg *A, const ArgList &Args, |
923 | const Driver &D, const ToolChain &TC) { |
924 | assert(A && "Expected non-nullptr argument.")(static_cast <bool> (A && "Expected non-nullptr argument." ) ? void (0) : __assert_fail ("A && \"Expected non-nullptr argument.\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 924, __extension__ __PRETTY_FUNCTION__)); |
925 | if (TC.supportsDebugInfoOption(A)) |
926 | return true; |
927 | D.Diag(diag::warn_drv_unsupported_debug_info_opt_for_target) |
928 | << A->getAsString(Args) << TC.getTripleString(); |
929 | return false; |
930 | } |
931 | |
932 | static void RenderDebugInfoCompressionArgs(const ArgList &Args, |
933 | ArgStringList &CmdArgs, |
934 | const Driver &D, |
935 | const ToolChain &TC) { |
936 | const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ); |
937 | if (!A) |
938 | return; |
939 | if (checkDebugInfoOption(A, Args, D, TC)) { |
940 | if (A->getOption().getID() == options::OPT_gz) { |
941 | if (llvm::zlib::isAvailable()) |
942 | CmdArgs.push_back("-compress-debug-sections"); |
943 | else |
944 | D.Diag(diag::warn_debug_compression_unavailable); |
945 | return; |
946 | } |
947 | |
948 | StringRef Value = A->getValue(); |
949 | if (Value == "none") { |
950 | CmdArgs.push_back("-compress-debug-sections=none"); |
951 | } else if (Value == "zlib" || Value == "zlib-gnu") { |
952 | if (llvm::zlib::isAvailable()) { |
953 | CmdArgs.push_back( |
954 | Args.MakeArgString("-compress-debug-sections=" + Twine(Value))); |
955 | } else { |
956 | D.Diag(diag::warn_debug_compression_unavailable); |
957 | } |
958 | } else { |
959 | D.Diag(diag::err_drv_unsupported_option_argument) |
960 | << A->getOption().getName() << Value; |
961 | } |
962 | } |
963 | } |
964 | |
965 | static const char *RelocationModelName(llvm::Reloc::Model Model) { |
966 | switch (Model) { |
967 | case llvm::Reloc::Static: |
968 | return "static"; |
969 | case llvm::Reloc::PIC_: |
970 | return "pic"; |
971 | case llvm::Reloc::DynamicNoPIC: |
972 | return "dynamic-no-pic"; |
973 | case llvm::Reloc::ROPI: |
974 | return "ropi"; |
975 | case llvm::Reloc::RWPI: |
976 | return "rwpi"; |
977 | case llvm::Reloc::ROPI_RWPI: |
978 | return "ropi-rwpi"; |
979 | } |
980 | llvm_unreachable("Unknown Reloc::Model kind")::llvm::llvm_unreachable_internal("Unknown Reloc::Model kind" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 980); |
981 | } |
982 | |
983 | void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA, |
984 | const Driver &D, const ArgList &Args, |
985 | ArgStringList &CmdArgs, |
986 | const InputInfo &Output, |
987 | const InputInfoList &Inputs) const { |
988 | Arg *A; |
989 | const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU(); |
990 | |
991 | CheckPreprocessingOptions(D, Args); |
992 | |
993 | Args.AddLastArg(CmdArgs, options::OPT_C); |
994 | Args.AddLastArg(CmdArgs, options::OPT_CC); |
995 | |
996 | // Handle dependency file generation. |
997 | if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) || |
998 | (A = Args.getLastArg(options::OPT_MD)) || |
999 | (A = Args.getLastArg(options::OPT_MMD))) { |
1000 | // Determine the output location. |
1001 | const char *DepFile; |
1002 | if (Arg *MF = Args.getLastArg(options::OPT_MF)) { |
1003 | DepFile = MF->getValue(); |
1004 | C.addFailureResultFile(DepFile, &JA); |
1005 | } else if (Output.getType() == types::TY_Dependencies) { |
1006 | DepFile = Output.getFilename(); |
1007 | } else if (A->getOption().matches(options::OPT_M) || |
1008 | A->getOption().matches(options::OPT_MM)) { |
1009 | DepFile = "-"; |
1010 | } else { |
1011 | DepFile = getDependencyFileName(Args, Inputs); |
1012 | C.addFailureResultFile(DepFile, &JA); |
1013 | } |
1014 | CmdArgs.push_back("-dependency-file"); |
1015 | CmdArgs.push_back(DepFile); |
1016 | |
1017 | // Add a default target if one wasn't specified. |
1018 | if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) { |
1019 | const char *DepTarget; |
1020 | |
1021 | // If user provided -o, that is the dependency target, except |
1022 | // when we are only generating a dependency file. |
1023 | Arg *OutputOpt = Args.getLastArg(options::OPT_o); |
1024 | if (OutputOpt && Output.getType() != types::TY_Dependencies) { |
1025 | DepTarget = OutputOpt->getValue(); |
1026 | } else { |
1027 | // Otherwise derive from the base input. |
1028 | // |
1029 | // FIXME: This should use the computed output file location. |
1030 | SmallString<128> P(Inputs[0].getBaseInput()); |
1031 | llvm::sys::path::replace_extension(P, "o"); |
1032 | DepTarget = Args.MakeArgString(llvm::sys::path::filename(P)); |
1033 | } |
1034 | |
1035 | if (!A->getOption().matches(options::OPT_MD) && !A->getOption().matches(options::OPT_MMD)) { |
1036 | CmdArgs.push_back("-w"); |
1037 | } |
1038 | CmdArgs.push_back("-MT"); |
1039 | SmallString<128> Quoted; |
1040 | QuoteTarget(DepTarget, Quoted); |
1041 | CmdArgs.push_back(Args.MakeArgString(Quoted)); |
1042 | } |
1043 | |
1044 | if (A->getOption().matches(options::OPT_M) || |
1045 | A->getOption().matches(options::OPT_MD)) |
1046 | CmdArgs.push_back("-sys-header-deps"); |
1047 | if ((isa<PrecompileJobAction>(JA) && |
1048 | !Args.hasArg(options::OPT_fno_module_file_deps)) || |
1049 | Args.hasArg(options::OPT_fmodule_file_deps)) |
1050 | CmdArgs.push_back("-module-file-deps"); |
1051 | } |
1052 | |
1053 | if (Args.hasArg(options::OPT_MG)) { |
1054 | if (!A || A->getOption().matches(options::OPT_MD) || |
1055 | A->getOption().matches(options::OPT_MMD)) |
1056 | D.Diag(diag::err_drv_mg_requires_m_or_mm); |
1057 | CmdArgs.push_back("-MG"); |
1058 | } |
1059 | |
1060 | Args.AddLastArg(CmdArgs, options::OPT_MP); |
1061 | Args.AddLastArg(CmdArgs, options::OPT_MV); |
1062 | |
1063 | // Convert all -MQ <target> args to -MT <quoted target> |
1064 | for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) { |
1065 | A->claim(); |
1066 | |
1067 | if (A->getOption().matches(options::OPT_MQ)) { |
1068 | CmdArgs.push_back("-MT"); |
1069 | SmallString<128> Quoted; |
1070 | QuoteTarget(A->getValue(), Quoted); |
1071 | CmdArgs.push_back(Args.MakeArgString(Quoted)); |
1072 | |
1073 | // -MT flag - no change |
1074 | } else { |
1075 | A->render(Args, CmdArgs); |
1076 | } |
1077 | } |
1078 | |
1079 | // Add offload include arguments specific for CUDA. This must happen before |
1080 | // we -I or -include anything else, because we must pick up the CUDA headers |
1081 | // from the particular CUDA installation, rather than from e.g. |
1082 | // /usr/local/include. |
1083 | if (JA.isOffloading(Action::OFK_Cuda)) |
1084 | getToolChain().AddCudaIncludeArgs(Args, CmdArgs); |
1085 | |
1086 | // Add -i* options, and automatically translate to |
1087 | // -include-pch/-include-pth for transparent PCH support. It's |
1088 | // wonky, but we include looking for .gch so we can support seamless |
1089 | // replacement into a build system already set up to be generating |
1090 | // .gch files. |
1091 | |
1092 | if (getToolChain().getDriver().IsCLMode()) { |
1093 | const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc); |
1094 | const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu); |
1095 | if (YcArg && JA.getKind() >= Action::PrecompileJobClass && |
1096 | JA.getKind() <= Action::AssembleJobClass) { |
1097 | CmdArgs.push_back(Args.MakeArgString("-building-pch-with-obj")); |
1098 | } |
1099 | if (YcArg || YuArg) { |
1100 | StringRef ThroughHeader = YcArg ? YcArg->getValue() : YuArg->getValue(); |
1101 | if (!isa<PrecompileJobAction>(JA)) { |
1102 | CmdArgs.push_back("-include-pch"); |
1103 | CmdArgs.push_back(Args.MakeArgString(D.GetClPchPath(C, ThroughHeader))); |
1104 | } |
1105 | CmdArgs.push_back( |
1106 | Args.MakeArgString(Twine("-pch-through-header=") + ThroughHeader)); |
1107 | } |
1108 | } |
1109 | |
1110 | bool RenderedImplicitInclude = false; |
1111 | for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { |
1112 | if (A->getOption().matches(options::OPT_include)) { |
1113 | // Handling of gcc-style gch precompiled headers. |
1114 | bool IsFirstImplicitInclude = !RenderedImplicitInclude; |
1115 | RenderedImplicitInclude = true; |
1116 | |
1117 | // Use PCH if the user requested it. |
1118 | bool UsePCH = D.CCCUsePCH; |
1119 | |
1120 | bool FoundPTH = false; |
1121 | bool FoundPCH = false; |
1122 | SmallString<128> P(A->getValue()); |
1123 | // We want the files to have a name like foo.h.pch. Add a dummy extension |
1124 | // so that replace_extension does the right thing. |
1125 | P += ".dummy"; |
1126 | if (UsePCH) { |
1127 | llvm::sys::path::replace_extension(P, "pch"); |
1128 | if (llvm::sys::fs::exists(P)) |
1129 | FoundPCH = true; |
1130 | } |
1131 | |
1132 | if (!FoundPCH) { |
1133 | llvm::sys::path::replace_extension(P, "pth"); |
1134 | if (llvm::sys::fs::exists(P)) |
1135 | FoundPTH = true; |
1136 | } |
1137 | |
1138 | if (!FoundPCH && !FoundPTH) { |
1139 | llvm::sys::path::replace_extension(P, "gch"); |
1140 | if (llvm::sys::fs::exists(P)) { |
1141 | FoundPCH = UsePCH; |
1142 | FoundPTH = !UsePCH; |
1143 | } |
1144 | } |
1145 | |
1146 | if (FoundPCH || FoundPTH) { |
1147 | if (IsFirstImplicitInclude) { |
1148 | A->claim(); |
1149 | if (UsePCH) |
1150 | CmdArgs.push_back("-include-pch"); |
1151 | else |
1152 | CmdArgs.push_back("-include-pth"); |
1153 | CmdArgs.push_back(Args.MakeArgString(P)); |
1154 | continue; |
1155 | } else { |
1156 | // Ignore the PCH if not first on command line and emit warning. |
1157 | D.Diag(diag::warn_drv_pch_not_first_include) << P |
1158 | << A->getAsString(Args); |
1159 | } |
1160 | } |
1161 | } else if (A->getOption().matches(options::OPT_isystem_after)) { |
1162 | // Handling of paths which must come late. These entries are handled by |
1163 | // the toolchain itself after the resource dir is inserted in the right |
1164 | // search order. |
1165 | // Do not claim the argument so that the use of the argument does not |
1166 | // silently go unnoticed on toolchains which do not honour the option. |
1167 | continue; |
1168 | } |
1169 | |
1170 | // Not translated, render as usual. |
1171 | A->claim(); |
1172 | A->render(Args, CmdArgs); |
1173 | } |
1174 | |
1175 | Args.AddAllArgs(CmdArgs, |
1176 | {options::OPT_D, options::OPT_U, options::OPT_I_Group, |
1177 | options::OPT_F, options::OPT_index_header_map}); |
1178 | |
1179 | // Add -Wp, and -Xpreprocessor if using the preprocessor. |
1180 | |
1181 | // FIXME: There is a very unfortunate problem here, some troubled |
1182 | // souls abuse -Wp, to pass preprocessor options in gcc syntax. To |
1183 | // really support that we would have to parse and then translate |
1184 | // those options. :( |
1185 | Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA, |
1186 | options::OPT_Xpreprocessor); |
1187 | |
1188 | // -I- is a deprecated GCC feature, reject it. |
1189 | if (Arg *A = Args.getLastArg(options::OPT_I_)) |
1190 | D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args); |
1191 | |
1192 | // If we have a --sysroot, and don't have an explicit -isysroot flag, add an |
1193 | // -isysroot to the CC1 invocation. |
1194 | StringRef sysroot = C.getSysRoot(); |
1195 | if (sysroot != "") { |
1196 | if (!Args.hasArg(options::OPT_isysroot)) { |
1197 | CmdArgs.push_back("-isysroot"); |
1198 | CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); |
1199 | } |
1200 | } |
1201 | |
1202 | // Parse additional include paths from environment variables. |
1203 | // FIXME: We should probably sink the logic for handling these from the |
1204 | // frontend into the driver. It will allow deleting 4 otherwise unused flags. |
1205 | // CPATH - included following the user specified includes (but prior to |
1206 | // builtin and standard includes). |
1207 | addDirectoryList(Args, CmdArgs, "-I", "CPATH"); |
1208 | // C_INCLUDE_PATH - system includes enabled when compiling C. |
1209 | addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH"); |
1210 | // CPLUS_INCLUDE_PATH - system includes enabled when compiling C++. |
1211 | addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH"); |
1212 | // OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC. |
1213 | addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH"); |
1214 | // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++. |
1215 | addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH"); |
1216 | |
1217 | // While adding the include arguments, we also attempt to retrieve the |
1218 | // arguments of related offloading toolchains or arguments that are specific |
1219 | // of an offloading programming model. |
1220 | |
1221 | // Add C++ include arguments, if needed. |
1222 | if (types::isCXX(Inputs[0].getType())) |
1223 | forAllAssociatedToolChains(C, JA, getToolChain(), |
1224 | [&Args, &CmdArgs](const ToolChain &TC) { |
1225 | TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs); |
1226 | }); |
1227 | |
1228 | // Add system include arguments for all targets but IAMCU. |
1229 | if (!IsIAMCU) |
1230 | forAllAssociatedToolChains(C, JA, getToolChain(), |
1231 | [&Args, &CmdArgs](const ToolChain &TC) { |
1232 | TC.AddClangSystemIncludeArgs(Args, CmdArgs); |
1233 | }); |
1234 | else { |
1235 | // For IAMCU add special include arguments. |
1236 | getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs); |
1237 | } |
1238 | } |
1239 | |
1240 | // FIXME: Move to target hook. |
1241 | static bool isSignedCharDefault(const llvm::Triple &Triple) { |
1242 | switch (Triple.getArch()) { |
1243 | default: |
1244 | return true; |
1245 | |
1246 | case llvm::Triple::aarch64: |
1247 | case llvm::Triple::aarch64_be: |
1248 | case llvm::Triple::arm: |
1249 | case llvm::Triple::armeb: |
1250 | case llvm::Triple::thumb: |
1251 | case llvm::Triple::thumbeb: |
1252 | if (Triple.isOSDarwin() || Triple.isOSWindows()) |
1253 | return true; |
1254 | return false; |
1255 | |
1256 | case llvm::Triple::ppc: |
1257 | case llvm::Triple::ppc64: |
1258 | if (Triple.isOSDarwin()) |
1259 | return true; |
1260 | return false; |
1261 | |
1262 | case llvm::Triple::hexagon: |
1263 | case llvm::Triple::ppc64le: |
1264 | case llvm::Triple::riscv32: |
1265 | case llvm::Triple::riscv64: |
1266 | case llvm::Triple::systemz: |
1267 | case llvm::Triple::xcore: |
1268 | return false; |
1269 | } |
1270 | } |
1271 | |
1272 | static bool isNoCommonDefault(const llvm::Triple &Triple) { |
1273 | switch (Triple.getArch()) { |
1274 | default: |
1275 | if (Triple.isOSFuchsia()) |
1276 | return true; |
1277 | return false; |
1278 | |
1279 | case llvm::Triple::xcore: |
1280 | case llvm::Triple::wasm32: |
1281 | case llvm::Triple::wasm64: |
1282 | return true; |
1283 | } |
1284 | } |
1285 | |
1286 | void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args, |
1287 | ArgStringList &CmdArgs, bool KernelOrKext) const { |
1288 | // Select the ABI to use. |
1289 | // FIXME: Support -meabi. |
1290 | // FIXME: Parts of this are duplicated in the backend, unify this somehow. |
1291 | const char *ABIName = nullptr; |
1292 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
1293 | ABIName = A->getValue(); |
1294 | else { |
1295 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); |
1296 | ABIName = llvm::ARM::computeDefaultTargetABI(Triple, CPU).data(); |
1297 | } |
1298 | |
1299 | CmdArgs.push_back("-target-abi"); |
1300 | CmdArgs.push_back(ABIName); |
1301 | |
1302 | // Determine floating point ABI from the options & target defaults. |
1303 | arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args); |
1304 | if (ABI == arm::FloatABI::Soft) { |
1305 | // Floating point operations and argument passing are soft. |
1306 | // FIXME: This changes CPP defines, we need -target-soft-float. |
1307 | CmdArgs.push_back("-msoft-float"); |
1308 | CmdArgs.push_back("-mfloat-abi"); |
1309 | CmdArgs.push_back("soft"); |
1310 | } else if (ABI == arm::FloatABI::SoftFP) { |
1311 | // Floating point operations are hard, but argument passing is soft. |
1312 | CmdArgs.push_back("-mfloat-abi"); |
1313 | CmdArgs.push_back("soft"); |
1314 | } else { |
1315 | // Floating point operations and argument passing are hard. |
1316 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1316, __extension__ __PRETTY_FUNCTION__)); |
1317 | CmdArgs.push_back("-mfloat-abi"); |
1318 | CmdArgs.push_back("hard"); |
1319 | } |
1320 | |
1321 | // Forward the -mglobal-merge option for explicit control over the pass. |
1322 | if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, |
1323 | options::OPT_mno_global_merge)) { |
1324 | CmdArgs.push_back("-mllvm"); |
1325 | if (A->getOption().matches(options::OPT_mno_global_merge)) |
1326 | CmdArgs.push_back("-arm-global-merge=false"); |
1327 | else |
1328 | CmdArgs.push_back("-arm-global-merge=true"); |
1329 | } |
1330 | |
1331 | if (!Args.hasFlag(options::OPT_mimplicit_float, |
1332 | options::OPT_mno_implicit_float, true)) |
1333 | CmdArgs.push_back("-no-implicit-float"); |
1334 | } |
1335 | |
1336 | void Clang::RenderTargetOptions(const llvm::Triple &EffectiveTriple, |
1337 | const ArgList &Args, bool KernelOrKext, |
1338 | ArgStringList &CmdArgs) const { |
1339 | const ToolChain &TC = getToolChain(); |
1340 | |
1341 | // Add the target features |
1342 | getTargetFeatures(TC, EffectiveTriple, Args, CmdArgs, false); |
1343 | |
1344 | // Add target specific flags. |
1345 | switch (TC.getArch()) { |
1346 | default: |
1347 | break; |
1348 | |
1349 | case llvm::Triple::arm: |
1350 | case llvm::Triple::armeb: |
1351 | case llvm::Triple::thumb: |
1352 | case llvm::Triple::thumbeb: |
1353 | // Use the effective triple, which takes into account the deployment target. |
1354 | AddARMTargetArgs(EffectiveTriple, Args, CmdArgs, KernelOrKext); |
1355 | CmdArgs.push_back("-fallow-half-arguments-and-returns"); |
1356 | break; |
1357 | |
1358 | case llvm::Triple::aarch64: |
1359 | case llvm::Triple::aarch64_be: |
1360 | AddAArch64TargetArgs(Args, CmdArgs); |
1361 | CmdArgs.push_back("-fallow-half-arguments-and-returns"); |
1362 | break; |
1363 | |
1364 | case llvm::Triple::mips: |
1365 | case llvm::Triple::mipsel: |
1366 | case llvm::Triple::mips64: |
1367 | case llvm::Triple::mips64el: |
1368 | AddMIPSTargetArgs(Args, CmdArgs); |
1369 | break; |
1370 | |
1371 | case llvm::Triple::ppc: |
1372 | case llvm::Triple::ppc64: |
1373 | case llvm::Triple::ppc64le: |
1374 | AddPPCTargetArgs(Args, CmdArgs); |
1375 | break; |
1376 | |
1377 | case llvm::Triple::riscv32: |
1378 | case llvm::Triple::riscv64: |
1379 | AddRISCVTargetArgs(Args, CmdArgs); |
1380 | break; |
1381 | |
1382 | case llvm::Triple::sparc: |
1383 | case llvm::Triple::sparcel: |
1384 | case llvm::Triple::sparcv9: |
1385 | AddSparcTargetArgs(Args, CmdArgs); |
1386 | break; |
1387 | |
1388 | case llvm::Triple::systemz: |
1389 | AddSystemZTargetArgs(Args, CmdArgs); |
1390 | break; |
1391 | |
1392 | case llvm::Triple::x86: |
1393 | case llvm::Triple::x86_64: |
1394 | AddX86TargetArgs(Args, CmdArgs); |
1395 | break; |
1396 | |
1397 | case llvm::Triple::lanai: |
1398 | AddLanaiTargetArgs(Args, CmdArgs); |
1399 | break; |
1400 | |
1401 | case llvm::Triple::hexagon: |
1402 | AddHexagonTargetArgs(Args, CmdArgs); |
1403 | break; |
1404 | |
1405 | case llvm::Triple::wasm32: |
1406 | case llvm::Triple::wasm64: |
1407 | AddWebAssemblyTargetArgs(Args, CmdArgs); |
1408 | break; |
1409 | } |
1410 | } |
1411 | |
1412 | void Clang::AddAArch64TargetArgs(const ArgList &Args, |
1413 | ArgStringList &CmdArgs) const { |
1414 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
1415 | |
1416 | if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || |
1417 | Args.hasArg(options::OPT_mkernel) || |
1418 | Args.hasArg(options::OPT_fapple_kext)) |
1419 | CmdArgs.push_back("-disable-red-zone"); |
1420 | |
1421 | if (!Args.hasFlag(options::OPT_mimplicit_float, |
1422 | options::OPT_mno_implicit_float, true)) |
1423 | CmdArgs.push_back("-no-implicit-float"); |
1424 | |
1425 | const char *ABIName = nullptr; |
1426 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
1427 | ABIName = A->getValue(); |
1428 | else if (Triple.isOSDarwin()) |
1429 | ABIName = "darwinpcs"; |
1430 | else |
1431 | ABIName = "aapcs"; |
1432 | |
1433 | CmdArgs.push_back("-target-abi"); |
1434 | CmdArgs.push_back(ABIName); |
1435 | |
1436 | if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769, |
1437 | options::OPT_mno_fix_cortex_a53_835769)) { |
1438 | CmdArgs.push_back("-mllvm"); |
1439 | if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769)) |
1440 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); |
1441 | else |
1442 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0"); |
1443 | } else if (Triple.isAndroid()) { |
1444 | // Enabled A53 errata (835769) workaround by default on android |
1445 | CmdArgs.push_back("-mllvm"); |
1446 | CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); |
1447 | } |
1448 | |
1449 | // Forward the -mglobal-merge option for explicit control over the pass. |
1450 | if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, |
1451 | options::OPT_mno_global_merge)) { |
1452 | CmdArgs.push_back("-mllvm"); |
1453 | if (A->getOption().matches(options::OPT_mno_global_merge)) |
1454 | CmdArgs.push_back("-aarch64-enable-global-merge=false"); |
1455 | else |
1456 | CmdArgs.push_back("-aarch64-enable-global-merge=true"); |
1457 | } |
1458 | } |
1459 | |
1460 | void Clang::AddMIPSTargetArgs(const ArgList &Args, |
1461 | ArgStringList &CmdArgs) const { |
1462 | const Driver &D = getToolChain().getDriver(); |
1463 | StringRef CPUName; |
1464 | StringRef ABIName; |
1465 | const llvm::Triple &Triple = getToolChain().getTriple(); |
1466 | mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); |
1467 | |
1468 | CmdArgs.push_back("-target-abi"); |
1469 | CmdArgs.push_back(ABIName.data()); |
1470 | |
1471 | mips::FloatABI ABI = mips::getMipsFloatABI(D, Args); |
1472 | if (ABI == mips::FloatABI::Soft) { |
1473 | // Floating point operations and argument passing are soft. |
1474 | CmdArgs.push_back("-msoft-float"); |
1475 | CmdArgs.push_back("-mfloat-abi"); |
1476 | CmdArgs.push_back("soft"); |
1477 | } else { |
1478 | // Floating point operations and argument passing are hard. |
1479 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1479, __extension__ __PRETTY_FUNCTION__)); |
1480 | CmdArgs.push_back("-mfloat-abi"); |
1481 | CmdArgs.push_back("hard"); |
1482 | } |
1483 | |
1484 | if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) { |
1485 | if (A->getOption().matches(options::OPT_mxgot)) { |
1486 | CmdArgs.push_back("-mllvm"); |
1487 | CmdArgs.push_back("-mxgot"); |
1488 | } |
1489 | } |
1490 | |
1491 | if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1, |
1492 | options::OPT_mno_ldc1_sdc1)) { |
1493 | if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) { |
1494 | CmdArgs.push_back("-mllvm"); |
1495 | CmdArgs.push_back("-mno-ldc1-sdc1"); |
1496 | } |
1497 | } |
1498 | |
1499 | if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division, |
1500 | options::OPT_mno_check_zero_division)) { |
1501 | if (A->getOption().matches(options::OPT_mno_check_zero_division)) { |
1502 | CmdArgs.push_back("-mllvm"); |
1503 | CmdArgs.push_back("-mno-check-zero-division"); |
1504 | } |
1505 | } |
1506 | |
1507 | if (Arg *A = Args.getLastArg(options::OPT_G)) { |
1508 | StringRef v = A->getValue(); |
1509 | CmdArgs.push_back("-mllvm"); |
1510 | CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v)); |
1511 | A->claim(); |
1512 | } |
1513 | |
1514 | Arg *GPOpt = Args.getLastArg(options::OPT_mgpopt, options::OPT_mno_gpopt); |
1515 | Arg *ABICalls = |
1516 | Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls); |
1517 | |
1518 | // -mabicalls is the default for many MIPS environments, even with -fno-pic. |
1519 | // -mgpopt is the default for static, -fno-pic environments but these two |
1520 | // options conflict. We want to be certain that -mno-abicalls -mgpopt is |
1521 | // the only case where -mllvm -mgpopt is passed. |
1522 | // NOTE: We need a warning here or in the backend to warn when -mgpopt is |
1523 | // passed explicitly when compiling something with -mabicalls |
1524 | // (implictly) in affect. Currently the warning is in the backend. |
1525 | // |
1526 | // When the ABI in use is N64, we also need to determine the PIC mode that |
1527 | // is in use, as -fno-pic for N64 implies -mno-abicalls. |
1528 | bool NoABICalls = |
1529 | ABICalls && ABICalls->getOption().matches(options::OPT_mno_abicalls); |
1530 | |
1531 | llvm::Reloc::Model RelocationModel; |
1532 | unsigned PICLevel; |
1533 | bool IsPIE; |
1534 | std::tie(RelocationModel, PICLevel, IsPIE) = |
1535 | ParsePICArgs(getToolChain(), Args); |
1536 | |
1537 | NoABICalls = NoABICalls || |
1538 | (RelocationModel == llvm::Reloc::Static && ABIName == "n64"); |
1539 | |
1540 | bool WantGPOpt = GPOpt && GPOpt->getOption().matches(options::OPT_mgpopt); |
1541 | // We quietly ignore -mno-gpopt as the backend defaults to -mno-gpopt. |
1542 | if (NoABICalls && (!GPOpt || WantGPOpt)) { |
1543 | CmdArgs.push_back("-mllvm"); |
1544 | CmdArgs.push_back("-mgpopt"); |
1545 | |
1546 | Arg *LocalSData = Args.getLastArg(options::OPT_mlocal_sdata, |
1547 | options::OPT_mno_local_sdata); |
1548 | Arg *ExternSData = Args.getLastArg(options::OPT_mextern_sdata, |
1549 | options::OPT_mno_extern_sdata); |
1550 | Arg *EmbeddedData = Args.getLastArg(options::OPT_membedded_data, |
1551 | options::OPT_mno_embedded_data); |
1552 | if (LocalSData) { |
1553 | CmdArgs.push_back("-mllvm"); |
1554 | if (LocalSData->getOption().matches(options::OPT_mlocal_sdata)) { |
1555 | CmdArgs.push_back("-mlocal-sdata=1"); |
1556 | } else { |
1557 | CmdArgs.push_back("-mlocal-sdata=0"); |
1558 | } |
1559 | LocalSData->claim(); |
1560 | } |
1561 | |
1562 | if (ExternSData) { |
1563 | CmdArgs.push_back("-mllvm"); |
1564 | if (ExternSData->getOption().matches(options::OPT_mextern_sdata)) { |
1565 | CmdArgs.push_back("-mextern-sdata=1"); |
1566 | } else { |
1567 | CmdArgs.push_back("-mextern-sdata=0"); |
1568 | } |
1569 | ExternSData->claim(); |
1570 | } |
1571 | |
1572 | if (EmbeddedData) { |
1573 | CmdArgs.push_back("-mllvm"); |
1574 | if (EmbeddedData->getOption().matches(options::OPT_membedded_data)) { |
1575 | CmdArgs.push_back("-membedded-data=1"); |
1576 | } else { |
1577 | CmdArgs.push_back("-membedded-data=0"); |
1578 | } |
1579 | EmbeddedData->claim(); |
1580 | } |
1581 | |
1582 | } else if ((!ABICalls || (!NoABICalls && ABICalls)) && WantGPOpt) |
1583 | D.Diag(diag::warn_drv_unsupported_gpopt) << (ABICalls ? 0 : 1); |
1584 | |
1585 | if (GPOpt) |
1586 | GPOpt->claim(); |
1587 | |
1588 | if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) { |
1589 | StringRef Val = StringRef(A->getValue()); |
1590 | if (mips::hasCompactBranches(CPUName)) { |
1591 | if (Val == "never" || Val == "always" || Val == "optimal") { |
1592 | CmdArgs.push_back("-mllvm"); |
1593 | CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val)); |
1594 | } else |
1595 | D.Diag(diag::err_drv_unsupported_option_argument) |
1596 | << A->getOption().getName() << Val; |
1597 | } else |
1598 | D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName; |
1599 | } |
1600 | } |
1601 | |
1602 | void Clang::AddPPCTargetArgs(const ArgList &Args, |
1603 | ArgStringList &CmdArgs) const { |
1604 | // Select the ABI to use. |
1605 | const char *ABIName = nullptr; |
1606 | if (getToolChain().getTriple().isOSLinux()) |
1607 | switch (getToolChain().getArch()) { |
1608 | case llvm::Triple::ppc64: { |
1609 | // When targeting a processor that supports QPX, or if QPX is |
1610 | // specifically enabled, default to using the ABI that supports QPX (so |
1611 | // long as it is not specifically disabled). |
1612 | bool HasQPX = false; |
1613 | if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) |
1614 | HasQPX = A->getValue() == StringRef("a2q"); |
1615 | HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX); |
1616 | if (HasQPX) { |
1617 | ABIName = "elfv1-qpx"; |
1618 | break; |
1619 | } |
1620 | |
1621 | ABIName = "elfv1"; |
1622 | break; |
1623 | } |
1624 | case llvm::Triple::ppc64le: |
1625 | ABIName = "elfv2"; |
1626 | break; |
1627 | default: |
1628 | break; |
1629 | } |
1630 | |
1631 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
1632 | // The ppc64 linux abis are all "altivec" abis by default. Accept and ignore |
1633 | // the option if given as we don't have backend support for any targets |
1634 | // that don't use the altivec abi. |
1635 | if (StringRef(A->getValue()) != "altivec") |
1636 | ABIName = A->getValue(); |
1637 | |
1638 | ppc::FloatABI FloatABI = |
1639 | ppc::getPPCFloatABI(getToolChain().getDriver(), Args); |
1640 | |
1641 | if (FloatABI == ppc::FloatABI::Soft) { |
1642 | // Floating point operations and argument passing are soft. |
1643 | CmdArgs.push_back("-msoft-float"); |
1644 | CmdArgs.push_back("-mfloat-abi"); |
1645 | CmdArgs.push_back("soft"); |
1646 | } else { |
1647 | // Floating point operations and argument passing are hard. |
1648 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1648, __extension__ __PRETTY_FUNCTION__)); |
1649 | CmdArgs.push_back("-mfloat-abi"); |
1650 | CmdArgs.push_back("hard"); |
1651 | } |
1652 | |
1653 | if (ABIName) { |
1654 | CmdArgs.push_back("-target-abi"); |
1655 | CmdArgs.push_back(ABIName); |
1656 | } |
1657 | } |
1658 | |
1659 | void Clang::AddRISCVTargetArgs(const ArgList &Args, |
1660 | ArgStringList &CmdArgs) const { |
1661 | // FIXME: currently defaults to the soft-float ABIs. Will need to be |
1662 | // expanded to select ilp32f, ilp32d, lp64f, lp64d when appropriate. |
1663 | const char *ABIName = nullptr; |
1664 | const llvm::Triple &Triple = getToolChain().getTriple(); |
1665 | if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) |
1666 | ABIName = A->getValue(); |
1667 | else if (Triple.getArch() == llvm::Triple::riscv32) |
1668 | ABIName = "ilp32"; |
1669 | else if (Triple.getArch() == llvm::Triple::riscv64) |
1670 | ABIName = "lp64"; |
1671 | else |
1672 | llvm_unreachable("Unexpected triple!")::llvm::llvm_unreachable_internal("Unexpected triple!", "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1672); |
1673 | |
1674 | CmdArgs.push_back("-target-abi"); |
1675 | CmdArgs.push_back(ABIName); |
1676 | } |
1677 | |
1678 | void Clang::AddSparcTargetArgs(const ArgList &Args, |
1679 | ArgStringList &CmdArgs) const { |
1680 | sparc::FloatABI FloatABI = |
1681 | sparc::getSparcFloatABI(getToolChain().getDriver(), Args); |
1682 | |
1683 | if (FloatABI == sparc::FloatABI::Soft) { |
1684 | // Floating point operations and argument passing are soft. |
1685 | CmdArgs.push_back("-msoft-float"); |
1686 | CmdArgs.push_back("-mfloat-abi"); |
1687 | CmdArgs.push_back("soft"); |
1688 | } else { |
1689 | // Floating point operations and argument passing are hard. |
1690 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 1690, __extension__ __PRETTY_FUNCTION__)); |
1691 | CmdArgs.push_back("-mfloat-abi"); |
1692 | CmdArgs.push_back("hard"); |
1693 | } |
1694 | } |
1695 | |
1696 | void Clang::AddSystemZTargetArgs(const ArgList &Args, |
1697 | ArgStringList &CmdArgs) const { |
1698 | if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false)) |
1699 | CmdArgs.push_back("-mbackchain"); |
1700 | } |
1701 | |
1702 | void Clang::AddX86TargetArgs(const ArgList &Args, |
1703 | ArgStringList &CmdArgs) const { |
1704 | if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || |
1705 | Args.hasArg(options::OPT_mkernel) || |
1706 | Args.hasArg(options::OPT_fapple_kext)) |
1707 | CmdArgs.push_back("-disable-red-zone"); |
1708 | |
1709 | // Default to avoid implicit floating-point for kernel/kext code, but allow |
1710 | // that to be overridden with -mno-soft-float. |
1711 | bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) || |
1712 | Args.hasArg(options::OPT_fapple_kext)); |
1713 | if (Arg *A = Args.getLastArg( |
1714 | options::OPT_msoft_float, options::OPT_mno_soft_float, |
1715 | options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) { |
1716 | const Option &O = A->getOption(); |
1717 | NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) || |
1718 | O.matches(options::OPT_msoft_float)); |
1719 | } |
1720 | if (NoImplicitFloat) |
1721 | CmdArgs.push_back("-no-implicit-float"); |
1722 | |
1723 | if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { |
1724 | StringRef Value = A->getValue(); |
1725 | if (Value == "intel" || Value == "att") { |
1726 | CmdArgs.push_back("-mllvm"); |
1727 | CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); |
1728 | } else { |
1729 | getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) |
1730 | << A->getOption().getName() << Value; |
1731 | } |
1732 | } else if (getToolChain().getDriver().IsCLMode()) { |
1733 | CmdArgs.push_back("-mllvm"); |
1734 | CmdArgs.push_back("-x86-asm-syntax=intel"); |
1735 | } |
1736 | |
1737 | // Set flags to support MCU ABI. |
1738 | if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) { |
1739 | CmdArgs.push_back("-mfloat-abi"); |
1740 | CmdArgs.push_back("soft"); |
1741 | CmdArgs.push_back("-mstack-alignment=4"); |
1742 | } |
1743 | } |
1744 | |
1745 | void Clang::AddHexagonTargetArgs(const ArgList &Args, |
1746 | ArgStringList &CmdArgs) const { |
1747 | CmdArgs.push_back("-mqdsp6-compat"); |
1748 | CmdArgs.push_back("-Wreturn-type"); |
1749 | |
1750 | if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { |
1751 | CmdArgs.push_back("-mllvm"); |
1752 | CmdArgs.push_back(Args.MakeArgString("-hexagon-small-data-threshold=" + |
1753 | Twine(G.getValue()))); |
1754 | } |
1755 | |
1756 | if (!Args.hasArg(options::OPT_fno_short_enums)) |
1757 | CmdArgs.push_back("-fshort-enums"); |
1758 | if (Args.getLastArg(options::OPT_mieee_rnd_near)) { |
1759 | CmdArgs.push_back("-mllvm"); |
1760 | CmdArgs.push_back("-enable-hexagon-ieee-rnd-near"); |
1761 | } |
1762 | CmdArgs.push_back("-mllvm"); |
1763 | CmdArgs.push_back("-machine-sink-split=0"); |
1764 | } |
1765 | |
1766 | void Clang::AddLanaiTargetArgs(const ArgList &Args, |
1767 | ArgStringList &CmdArgs) const { |
1768 | if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { |
1769 | StringRef CPUName = A->getValue(); |
1770 | |
1771 | CmdArgs.push_back("-target-cpu"); |
1772 | CmdArgs.push_back(Args.MakeArgString(CPUName)); |
1773 | } |
1774 | if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { |
1775 | StringRef Value = A->getValue(); |
1776 | // Only support mregparm=4 to support old usage. Report error for all other |
1777 | // cases. |
1778 | int Mregparm; |
1779 | if (Value.getAsInteger(10, Mregparm)) { |
1780 | if (Mregparm != 4) { |
1781 | getToolChain().getDriver().Diag( |
1782 | diag::err_drv_unsupported_option_argument) |
1783 | << A->getOption().getName() << Value; |
1784 | } |
1785 | } |
1786 | } |
1787 | } |
1788 | |
1789 | void Clang::AddWebAssemblyTargetArgs(const ArgList &Args, |
1790 | ArgStringList &CmdArgs) const { |
1791 | // Default to "hidden" visibility. |
1792 | if (!Args.hasArg(options::OPT_fvisibility_EQ, |
1793 | options::OPT_fvisibility_ms_compat)) { |
1794 | CmdArgs.push_back("-fvisibility"); |
1795 | CmdArgs.push_back("hidden"); |
1796 | } |
1797 | } |
1798 | |
1799 | void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename, |
1800 | StringRef Target, const InputInfo &Output, |
1801 | const InputInfo &Input, const ArgList &Args) const { |
1802 | // If this is a dry run, do not create the compilation database file. |
1803 | if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) |
1804 | return; |
1805 | |
1806 | using llvm::yaml::escape; |
1807 | const Driver &D = getToolChain().getDriver(); |
1808 | |
1809 | if (!CompilationDatabase) { |
1810 | std::error_code EC; |
1811 | auto File = llvm::make_unique<llvm::raw_fd_ostream>(Filename, EC, llvm::sys::fs::F_Text); |
1812 | if (EC) { |
1813 | D.Diag(clang::diag::err_drv_compilationdatabase) << Filename |
1814 | << EC.message(); |
1815 | return; |
1816 | } |
1817 | CompilationDatabase = std::move(File); |
1818 | } |
1819 | auto &CDB = *CompilationDatabase; |
1820 | SmallString<128> Buf; |
1821 | if (llvm::sys::fs::current_path(Buf)) |
1822 | Buf = "."; |
1823 | CDB << "{ \"directory\": \"" << escape(Buf) << "\""; |
1824 | CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\""; |
1825 | CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\""; |
1826 | CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\""; |
1827 | Buf = "-x"; |
1828 | Buf += types::getTypeName(Input.getType()); |
1829 | CDB << ", \"" << escape(Buf) << "\""; |
1830 | if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) { |
1831 | Buf = "--sysroot="; |
1832 | Buf += D.SysRoot; |
1833 | CDB << ", \"" << escape(Buf) << "\""; |
1834 | } |
1835 | CDB << ", \"" << escape(Input.getFilename()) << "\""; |
1836 | for (auto &A: Args) { |
1837 | auto &O = A->getOption(); |
1838 | // Skip language selection, which is positional. |
1839 | if (O.getID() == options::OPT_x) |
1840 | continue; |
1841 | // Skip writing dependency output and the compilation database itself. |
1842 | if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group) |
1843 | continue; |
1844 | // Skip inputs. |
1845 | if (O.getKind() == Option::InputClass) |
1846 | continue; |
1847 | // All other arguments are quoted and appended. |
1848 | ArgStringList ASL; |
1849 | A->render(Args, ASL); |
1850 | for (auto &it: ASL) |
1851 | CDB << ", \"" << escape(it) << "\""; |
1852 | } |
1853 | Buf = "--target="; |
1854 | Buf += Target; |
1855 | CDB << ", \"" << escape(Buf) << "\"]},\n"; |
1856 | } |
1857 | |
1858 | static void CollectArgsForIntegratedAssembler(Compilation &C, |
1859 | const ArgList &Args, |
1860 | ArgStringList &CmdArgs, |
1861 | const Driver &D) { |
1862 | if (UseRelaxAll(C, Args)) |
1863 | CmdArgs.push_back("-mrelax-all"); |
1864 | |
1865 | // Only default to -mincremental-linker-compatible if we think we are |
1866 | // targeting the MSVC linker. |
1867 | bool DefaultIncrementalLinkerCompatible = |
1868 | C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment(); |
1869 | if (Args.hasFlag(options::OPT_mincremental_linker_compatible, |
1870 | options::OPT_mno_incremental_linker_compatible, |
1871 | DefaultIncrementalLinkerCompatible)) |
1872 | CmdArgs.push_back("-mincremental-linker-compatible"); |
1873 | |
1874 | switch (C.getDefaultToolChain().getArch()) { |
1875 | case llvm::Triple::arm: |
1876 | case llvm::Triple::armeb: |
1877 | case llvm::Triple::thumb: |
1878 | case llvm::Triple::thumbeb: |
1879 | if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) { |
1880 | StringRef Value = A->getValue(); |
1881 | if (Value == "always" || Value == "never" || Value == "arm" || |
1882 | Value == "thumb") { |
1883 | CmdArgs.push_back("-mllvm"); |
1884 | CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value)); |
1885 | } else { |
1886 | D.Diag(diag::err_drv_unsupported_option_argument) |
1887 | << A->getOption().getName() << Value; |
1888 | } |
1889 | } |
1890 | break; |
1891 | default: |
1892 | break; |
1893 | } |
1894 | |
1895 | // When passing -I arguments to the assembler we sometimes need to |
1896 | // unconditionally take the next argument. For example, when parsing |
1897 | // '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the |
1898 | // -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo' |
1899 | // arg after parsing the '-I' arg. |
1900 | bool TakeNextArg = false; |
1901 | |
1902 | bool UseRelaxRelocations = C.getDefaultToolChain().useRelaxRelocations(); |
1903 | const char *MipsTargetFeature = nullptr; |
1904 | for (const Arg *A : |
1905 | Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { |
1906 | A->claim(); |
1907 | |
1908 | for (StringRef Value : A->getValues()) { |
1909 | if (TakeNextArg) { |
1910 | CmdArgs.push_back(Value.data()); |
1911 | TakeNextArg = false; |
1912 | continue; |
1913 | } |
1914 | |
1915 | if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() && |
1916 | Value == "-mbig-obj") |
1917 | continue; // LLVM handles bigobj automatically |
1918 | |
1919 | switch (C.getDefaultToolChain().getArch()) { |
1920 | default: |
1921 | break; |
1922 | case llvm::Triple::thumb: |
1923 | case llvm::Triple::thumbeb: |
1924 | case llvm::Triple::arm: |
1925 | case llvm::Triple::armeb: |
1926 | if (Value == "-mthumb") |
1927 | // -mthumb has already been processed in ComputeLLVMTriple() |
1928 | // recognize but skip over here. |
1929 | continue; |
1930 | break; |
1931 | case llvm::Triple::mips: |
1932 | case llvm::Triple::mipsel: |
1933 | case llvm::Triple::mips64: |
1934 | case llvm::Triple::mips64el: |
1935 | if (Value == "--trap") { |
1936 | CmdArgs.push_back("-target-feature"); |
1937 | CmdArgs.push_back("+use-tcc-in-div"); |
1938 | continue; |
1939 | } |
1940 | if (Value == "--break") { |
1941 | CmdArgs.push_back("-target-feature"); |
1942 | CmdArgs.push_back("-use-tcc-in-div"); |
1943 | continue; |
1944 | } |
1945 | if (Value.startswith("-msoft-float")) { |
1946 | CmdArgs.push_back("-target-feature"); |
1947 | CmdArgs.push_back("+soft-float"); |
1948 | continue; |
1949 | } |
1950 | if (Value.startswith("-mhard-float")) { |
1951 | CmdArgs.push_back("-target-feature"); |
1952 | CmdArgs.push_back("-soft-float"); |
1953 | continue; |
1954 | } |
1955 | |
1956 | MipsTargetFeature = llvm::StringSwitch<const char *>(Value) |
1957 | .Case("-mips1", "+mips1") |
1958 | .Case("-mips2", "+mips2") |
1959 | .Case("-mips3", "+mips3") |
1960 | .Case("-mips4", "+mips4") |
1961 | .Case("-mips5", "+mips5") |
1962 | .Case("-mips32", "+mips32") |
1963 | .Case("-mips32r2", "+mips32r2") |
1964 | .Case("-mips32r3", "+mips32r3") |
1965 | .Case("-mips32r5", "+mips32r5") |
1966 | .Case("-mips32r6", "+mips32r6") |
1967 | .Case("-mips64", "+mips64") |
1968 | .Case("-mips64r2", "+mips64r2") |
1969 | .Case("-mips64r3", "+mips64r3") |
1970 | .Case("-mips64r5", "+mips64r5") |
1971 | .Case("-mips64r6", "+mips64r6") |
1972 | .Default(nullptr); |
1973 | if (MipsTargetFeature) |
1974 | continue; |
1975 | } |
1976 | |
1977 | if (Value == "-force_cpusubtype_ALL") { |
1978 | // Do nothing, this is the default and we don't support anything else. |
1979 | } else if (Value == "-L") { |
1980 | CmdArgs.push_back("-msave-temp-labels"); |
1981 | } else if (Value == "--fatal-warnings") { |
1982 | CmdArgs.push_back("-massembler-fatal-warnings"); |
1983 | } else if (Value == "--noexecstack") { |
1984 | CmdArgs.push_back("-mnoexecstack"); |
1985 | } else if (Value.startswith("-compress-debug-sections") || |
1986 | Value.startswith("--compress-debug-sections") || |
1987 | Value == "-nocompress-debug-sections" || |
1988 | Value == "--nocompress-debug-sections") { |
1989 | CmdArgs.push_back(Value.data()); |
1990 | } else if (Value == "-mrelax-relocations=yes" || |
1991 | Value == "--mrelax-relocations=yes") { |
1992 | UseRelaxRelocations = true; |
1993 | } else if (Value == "-mrelax-relocations=no" || |
1994 | Value == "--mrelax-relocations=no") { |
1995 | UseRelaxRelocations = false; |
1996 | } else if (Value.startswith("-I")) { |
1997 | CmdArgs.push_back(Value.data()); |
1998 | // We need to consume the next argument if the current arg is a plain |
1999 | // -I. The next arg will be the include directory. |
2000 | if (Value == "-I") |
2001 | TakeNextArg = true; |
2002 | } else if (Value.startswith("-gdwarf-")) { |
2003 | // "-gdwarf-N" options are not cc1as options. |
2004 | unsigned DwarfVersion = DwarfVersionNum(Value); |
2005 | if (DwarfVersion == 0) { // Send it onward, and let cc1as complain. |
2006 | CmdArgs.push_back(Value.data()); |
2007 | } else { |
2008 | RenderDebugEnablingArgs(Args, CmdArgs, |
2009 | codegenoptions::LimitedDebugInfo, |
2010 | DwarfVersion, llvm::DebuggerKind::Default); |
2011 | } |
2012 | } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") || |
2013 | Value.startswith("-mhwdiv") || Value.startswith("-march")) { |
2014 | // Do nothing, we'll validate it later. |
2015 | } else if (Value == "-defsym") { |
2016 | if (A->getNumValues() != 2) { |
2017 | D.Diag(diag::err_drv_defsym_invalid_format) << Value; |
2018 | break; |
2019 | } |
2020 | const char *S = A->getValue(1); |
2021 | auto Pair = StringRef(S).split('='); |
2022 | auto Sym = Pair.first; |
2023 | auto SVal = Pair.second; |
2024 | |
2025 | if (Sym.empty() || SVal.empty()) { |
2026 | D.Diag(diag::err_drv_defsym_invalid_format) << S; |
2027 | break; |
2028 | } |
2029 | int64_t IVal; |
2030 | if (SVal.getAsInteger(0, IVal)) { |
2031 | D.Diag(diag::err_drv_defsym_invalid_symval) << SVal; |
2032 | break; |
2033 | } |
2034 | CmdArgs.push_back(Value.data()); |
2035 | TakeNextArg = true; |
2036 | } else { |
2037 | D.Diag(diag::err_drv_unsupported_option_argument) |
2038 | << A->getOption().getName() << Value; |
2039 | } |
2040 | } |
2041 | } |
2042 | if (UseRelaxRelocations) |
2043 | CmdArgs.push_back("--mrelax-relocations"); |
2044 | if (MipsTargetFeature != nullptr) { |
2045 | CmdArgs.push_back("-target-feature"); |
2046 | CmdArgs.push_back(MipsTargetFeature); |
2047 | } |
2048 | } |
2049 | |
2050 | static void RenderFloatingPointOptions(const ToolChain &TC, const Driver &D, |
2051 | bool OFastEnabled, const ArgList &Args, |
2052 | ArgStringList &CmdArgs) { |
2053 | // Handle various floating point optimization flags, mapping them to the |
2054 | // appropriate LLVM code generation flags. This is complicated by several |
2055 | // "umbrella" flags, so we do this by stepping through the flags incrementally |
2056 | // adjusting what we think is enabled/disabled, then at the end setting the |
2057 | // LLVM flags based on the final state. |
2058 | bool HonorINFs = true; |
2059 | bool HonorNaNs = true; |
2060 | // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes. |
2061 | bool MathErrno = TC.IsMathErrnoDefault(); |
2062 | bool AssociativeMath = false; |
2063 | bool ReciprocalMath = false; |
2064 | bool SignedZeros = true; |
2065 | bool TrappingMath = true; |
2066 | StringRef DenormalFPMath = ""; |
2067 | StringRef FPContract = ""; |
2068 | |
2069 | for (const Arg *A : Args) { |
2070 | switch (A->getOption().getID()) { |
2071 | // If this isn't an FP option skip the claim below |
2072 | default: continue; |
2073 | |
2074 | // Options controlling individual features |
2075 | case options::OPT_fhonor_infinities: HonorINFs = true; break; |
2076 | case options::OPT_fno_honor_infinities: HonorINFs = false; break; |
2077 | case options::OPT_fhonor_nans: HonorNaNs = true; break; |
2078 | case options::OPT_fno_honor_nans: HonorNaNs = false; break; |
2079 | case options::OPT_fmath_errno: MathErrno = true; break; |
2080 | case options::OPT_fno_math_errno: MathErrno = false; break; |
2081 | case options::OPT_fassociative_math: AssociativeMath = true; break; |
2082 | case options::OPT_fno_associative_math: AssociativeMath = false; break; |
2083 | case options::OPT_freciprocal_math: ReciprocalMath = true; break; |
2084 | case options::OPT_fno_reciprocal_math: ReciprocalMath = false; break; |
2085 | case options::OPT_fsigned_zeros: SignedZeros = true; break; |
2086 | case options::OPT_fno_signed_zeros: SignedZeros = false; break; |
2087 | case options::OPT_ftrapping_math: TrappingMath = true; break; |
2088 | case options::OPT_fno_trapping_math: TrappingMath = false; break; |
2089 | |
2090 | case options::OPT_fdenormal_fp_math_EQ: |
2091 | DenormalFPMath = A->getValue(); |
2092 | break; |
2093 | |
2094 | // Validate and pass through -fp-contract option. |
2095 | case options::OPT_ffp_contract: { |
2096 | StringRef Val = A->getValue(); |
2097 | if (Val == "fast" || Val == "on" || Val == "off") |
2098 | FPContract = Val; |
2099 | else |
2100 | D.Diag(diag::err_drv_unsupported_option_argument) |
2101 | << A->getOption().getName() << Val; |
2102 | break; |
2103 | } |
2104 | |
2105 | case options::OPT_ffinite_math_only: |
2106 | HonorINFs = false; |
2107 | HonorNaNs = false; |
2108 | break; |
2109 | case options::OPT_fno_finite_math_only: |
2110 | HonorINFs = true; |
2111 | HonorNaNs = true; |
2112 | break; |
2113 | |
2114 | case options::OPT_funsafe_math_optimizations: |
2115 | AssociativeMath = true; |
2116 | ReciprocalMath = true; |
2117 | SignedZeros = false; |
2118 | TrappingMath = false; |
2119 | break; |
2120 | case options::OPT_fno_unsafe_math_optimizations: |
2121 | AssociativeMath = false; |
2122 | ReciprocalMath = false; |
2123 | SignedZeros = true; |
2124 | TrappingMath = true; |
2125 | // -fno_unsafe_math_optimizations restores default denormal handling |
2126 | DenormalFPMath = ""; |
2127 | break; |
2128 | |
2129 | case options::OPT_Ofast: |
2130 | // If -Ofast is the optimization level, then -ffast-math should be enabled |
2131 | if (!OFastEnabled) |
2132 | continue; |
2133 | LLVM_FALLTHROUGH[[clang::fallthrough]]; |
2134 | case options::OPT_ffast_math: |
2135 | HonorINFs = false; |
2136 | HonorNaNs = false; |
2137 | MathErrno = false; |
2138 | AssociativeMath = true; |
2139 | ReciprocalMath = true; |
2140 | SignedZeros = false; |
2141 | TrappingMath = false; |
2142 | // If fast-math is set then set the fp-contract mode to fast. |
2143 | FPContract = "fast"; |
2144 | break; |
2145 | case options::OPT_fno_fast_math: |
2146 | HonorINFs = true; |
2147 | HonorNaNs = true; |
2148 | // Turning on -ffast-math (with either flag) removes the need for |
2149 | // MathErrno. However, turning *off* -ffast-math merely restores the |
2150 | // toolchain default (which may be false). |
2151 | MathErrno = TC.IsMathErrnoDefault(); |
2152 | AssociativeMath = false; |
2153 | ReciprocalMath = false; |
2154 | SignedZeros = true; |
2155 | TrappingMath = true; |
2156 | // -fno_fast_math restores default denormal and fpcontract handling |
2157 | DenormalFPMath = ""; |
2158 | FPContract = ""; |
2159 | break; |
2160 | } |
2161 | |
2162 | // If we handled this option claim it |
2163 | A->claim(); |
2164 | } |
2165 | |
2166 | if (!HonorINFs) |
2167 | CmdArgs.push_back("-menable-no-infs"); |
2168 | |
2169 | if (!HonorNaNs) |
2170 | CmdArgs.push_back("-menable-no-nans"); |
2171 | |
2172 | if (MathErrno) |
2173 | CmdArgs.push_back("-fmath-errno"); |
2174 | |
2175 | if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros && |
2176 | !TrappingMath) |
2177 | CmdArgs.push_back("-menable-unsafe-fp-math"); |
2178 | |
2179 | if (!SignedZeros) |
2180 | CmdArgs.push_back("-fno-signed-zeros"); |
2181 | |
2182 | if (AssociativeMath && !SignedZeros && !TrappingMath) |
2183 | CmdArgs.push_back("-mreassociate"); |
2184 | |
2185 | if (ReciprocalMath) |
2186 | CmdArgs.push_back("-freciprocal-math"); |
2187 | |
2188 | if (!TrappingMath) |
2189 | CmdArgs.push_back("-fno-trapping-math"); |
2190 | |
2191 | if (!DenormalFPMath.empty()) |
2192 | CmdArgs.push_back( |
2193 | Args.MakeArgString("-fdenormal-fp-math=" + DenormalFPMath)); |
2194 | |
2195 | if (!FPContract.empty()) |
2196 | CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + FPContract)); |
2197 | |
2198 | ParseMRecip(D, Args, CmdArgs); |
2199 | |
2200 | // -ffast-math enables the __FAST_MATH__ preprocessor macro, but check for the |
2201 | // individual features enabled by -ffast-math instead of the option itself as |
2202 | // that's consistent with gcc's behaviour. |
2203 | if (!HonorINFs && !HonorNaNs && !MathErrno && AssociativeMath && |
2204 | ReciprocalMath && !SignedZeros && !TrappingMath) |
2205 | CmdArgs.push_back("-ffast-math"); |
2206 | |
2207 | // Handle __FINITE_MATH_ONLY__ similarly. |
2208 | if (!HonorINFs && !HonorNaNs) |
2209 | CmdArgs.push_back("-ffinite-math-only"); |
2210 | |
2211 | if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) { |
2212 | CmdArgs.push_back("-mfpmath"); |
2213 | CmdArgs.push_back(A->getValue()); |
2214 | } |
2215 | |
2216 | // Disable a codegen optimization for floating-point casts. |
2217 | if (Args.hasFlag(options::OPT_fno_strict_float_cast_overflow, |
2218 | options::OPT_fstrict_float_cast_overflow, false)) |
2219 | CmdArgs.push_back("-fno-strict-float-cast-overflow"); |
2220 | } |
2221 | |
2222 | static void RenderAnalyzerOptions(const ArgList &Args, ArgStringList &CmdArgs, |
2223 | const llvm::Triple &Triple, |
2224 | const InputInfo &Input) { |
2225 | // Enable region store model by default. |
2226 | CmdArgs.push_back("-analyzer-store=region"); |
2227 | |
2228 | // Treat blocks as analysis entry points. |
2229 | CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks"); |
2230 | |
2231 | CmdArgs.push_back("-analyzer-eagerly-assume"); |
2232 | |
2233 | // Add default argument set. |
2234 | if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) { |
2235 | CmdArgs.push_back("-analyzer-checker=core"); |
2236 | CmdArgs.push_back("-analyzer-checker=apiModeling"); |
2237 | |
2238 | if (!Triple.isWindowsMSVCEnvironment()) { |
2239 | CmdArgs.push_back("-analyzer-checker=unix"); |
2240 | } else { |
2241 | // Enable "unix" checkers that also work on Windows. |
2242 | CmdArgs.push_back("-analyzer-checker=unix.API"); |
2243 | CmdArgs.push_back("-analyzer-checker=unix.Malloc"); |
2244 | CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof"); |
2245 | CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator"); |
2246 | CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg"); |
2247 | CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg"); |
2248 | } |
2249 | |
2250 | // Disable some unix checkers for PS4. |
2251 | if (Triple.isPS4CPU()) { |
2252 | CmdArgs.push_back("-analyzer-disable-checker=unix.API"); |
2253 | CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork"); |
2254 | } |
2255 | |
2256 | if (Triple.isOSDarwin()) |
2257 | CmdArgs.push_back("-analyzer-checker=osx"); |
2258 | |
2259 | CmdArgs.push_back("-analyzer-checker=deadcode"); |
2260 | |
2261 | if (types::isCXX(Input.getType())) |
2262 | CmdArgs.push_back("-analyzer-checker=cplusplus"); |
2263 | |
2264 | if (!Triple.isPS4CPU()) { |
2265 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.UncheckedReturn"); |
2266 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw"); |
2267 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets"); |
2268 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp"); |
2269 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp"); |
2270 | CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork"); |
2271 | } |
2272 | |
2273 | // Default nullability checks. |
2274 | CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull"); |
2275 | CmdArgs.push_back("-analyzer-checker=nullability.NullReturnedFromNonnull"); |
2276 | } |
2277 | |
2278 | // Set the output format. The default is plist, for (lame) historical reasons. |
2279 | CmdArgs.push_back("-analyzer-output"); |
2280 | if (Arg *A = Args.getLastArg(options::OPT__analyzer_output)) |
2281 | CmdArgs.push_back(A->getValue()); |
2282 | else |
2283 | CmdArgs.push_back("plist"); |
2284 | |
2285 | // Disable the presentation of standard compiler warnings when using |
2286 | // --analyze. We only want to show static analyzer diagnostics or frontend |
2287 | // errors. |
2288 | CmdArgs.push_back("-w"); |
2289 | |
2290 | // Add -Xanalyzer arguments when running as analyzer. |
2291 | Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer); |
2292 | } |
2293 | |
2294 | static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args, |
2295 | ArgStringList &CmdArgs, bool KernelOrKext) { |
2296 | const llvm::Triple &EffectiveTriple = TC.getEffectiveTriple(); |
2297 | |
2298 | // NVPTX doesn't support stack protectors; from the compiler's perspective, it |
2299 | // doesn't even have a stack! |
2300 | if (EffectiveTriple.isNVPTX()) |
2301 | return; |
2302 | |
2303 | // -stack-protector=0 is default. |
2304 | unsigned StackProtectorLevel = 0; |
2305 | unsigned DefaultStackProtectorLevel = |
2306 | TC.GetDefaultStackProtectorLevel(KernelOrKext); |
2307 | |
2308 | if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector, |
2309 | options::OPT_fstack_protector_all, |
2310 | options::OPT_fstack_protector_strong, |
2311 | options::OPT_fstack_protector)) { |
2312 | if (A->getOption().matches(options::OPT_fstack_protector)) |
2313 | StackProtectorLevel = |
2314 | std::max<unsigned>(LangOptions::SSPOn, DefaultStackProtectorLevel); |
2315 | else if (A->getOption().matches(options::OPT_fstack_protector_strong)) |
2316 | StackProtectorLevel = LangOptions::SSPStrong; |
2317 | else if (A->getOption().matches(options::OPT_fstack_protector_all)) |
2318 | StackProtectorLevel = LangOptions::SSPReq; |
2319 | } else { |
2320 | StackProtectorLevel = DefaultStackProtectorLevel; |
2321 | } |
2322 | |
2323 | if (StackProtectorLevel) { |
2324 | CmdArgs.push_back("-stack-protector"); |
2325 | CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel))); |
2326 | } |
2327 | |
2328 | // --param ssp-buffer-size= |
2329 | for (const Arg *A : Args.filtered(options::OPT__param)) { |
2330 | StringRef Str(A->getValue()); |
2331 | if (Str.startswith("ssp-buffer-size=")) { |
2332 | if (StackProtectorLevel) { |
2333 | CmdArgs.push_back("-stack-protector-buffer-size"); |
2334 | // FIXME: Verify the argument is a valid integer. |
2335 | CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16))); |
2336 | } |
2337 | A->claim(); |
2338 | } |
2339 | } |
2340 | } |
2341 | |
2342 | static void RenderOpenCLOptions(const ArgList &Args, ArgStringList &CmdArgs) { |
2343 | const unsigned ForwardedArguments[] = { |
2344 | options::OPT_cl_opt_disable, |
2345 | options::OPT_cl_strict_aliasing, |
2346 | options::OPT_cl_single_precision_constant, |
2347 | options::OPT_cl_finite_math_only, |
2348 | options::OPT_cl_kernel_arg_info, |
2349 | options::OPT_cl_unsafe_math_optimizations, |
2350 | options::OPT_cl_fast_relaxed_math, |
2351 | options::OPT_cl_mad_enable, |
2352 | options::OPT_cl_no_signed_zeros, |
2353 | options::OPT_cl_denorms_are_zero, |
2354 | options::OPT_cl_fp32_correctly_rounded_divide_sqrt, |
2355 | options::OPT_cl_uniform_work_group_size |
2356 | }; |
2357 | |
2358 | if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) { |
2359 | std::string CLStdStr = std::string("-cl-std=") + A->getValue(); |
2360 | CmdArgs.push_back(Args.MakeArgString(CLStdStr)); |
2361 | } |
2362 | |
2363 | for (const auto &Arg : ForwardedArguments) |
2364 | if (const auto *A = Args.getLastArg(Arg)) |
2365 | CmdArgs.push_back(Args.MakeArgString(A->getOption().getPrefixedName())); |
2366 | } |
2367 | |
2368 | static void RenderARCMigrateToolOptions(const Driver &D, const ArgList &Args, |
2369 | ArgStringList &CmdArgs) { |
2370 | bool ARCMTEnabled = false; |
2371 | if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) { |
2372 | if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check, |
2373 | options::OPT_ccc_arcmt_modify, |
2374 | options::OPT_ccc_arcmt_migrate)) { |
2375 | ARCMTEnabled = true; |
2376 | switch (A->getOption().getID()) { |
2377 | default: llvm_unreachable("missed a case")::llvm::llvm_unreachable_internal("missed a case", "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 2377); |
2378 | case options::OPT_ccc_arcmt_check: |
2379 | CmdArgs.push_back("-arcmt-check"); |
2380 | break; |
2381 | case options::OPT_ccc_arcmt_modify: |
2382 | CmdArgs.push_back("-arcmt-modify"); |
2383 | break; |
2384 | case options::OPT_ccc_arcmt_migrate: |
2385 | CmdArgs.push_back("-arcmt-migrate"); |
2386 | CmdArgs.push_back("-mt-migrate-directory"); |
2387 | CmdArgs.push_back(A->getValue()); |
2388 | |
2389 | Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output); |
2390 | Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors); |
2391 | break; |
2392 | } |
2393 | } |
2394 | } else { |
2395 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_check); |
2396 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify); |
2397 | Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate); |
2398 | } |
2399 | |
2400 | if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) { |
2401 | if (ARCMTEnabled) |
2402 | D.Diag(diag::err_drv_argument_not_allowed_with) |
2403 | << A->getAsString(Args) << "-ccc-arcmt-migrate"; |
2404 | |
2405 | CmdArgs.push_back("-mt-migrate-directory"); |
2406 | CmdArgs.push_back(A->getValue()); |
2407 | |
2408 | if (!Args.hasArg(options::OPT_objcmt_migrate_literals, |
2409 | options::OPT_objcmt_migrate_subscripting, |
2410 | options::OPT_objcmt_migrate_property)) { |
2411 | // None specified, means enable them all. |
2412 | CmdArgs.push_back("-objcmt-migrate-literals"); |
2413 | CmdArgs.push_back("-objcmt-migrate-subscripting"); |
2414 | CmdArgs.push_back("-objcmt-migrate-property"); |
2415 | } else { |
2416 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); |
2417 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); |
2418 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); |
2419 | } |
2420 | } else { |
2421 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); |
2422 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); |
2423 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); |
2424 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all); |
2425 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property); |
2426 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property); |
2427 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax); |
2428 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation); |
2429 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype); |
2430 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros); |
2431 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance); |
2432 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property); |
2433 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property); |
2434 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly); |
2435 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init); |
2436 | Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path); |
2437 | } |
2438 | } |
2439 | |
2440 | static void RenderBuiltinOptions(const ToolChain &TC, const llvm::Triple &T, |
2441 | const ArgList &Args, ArgStringList &CmdArgs) { |
2442 | // -fbuiltin is default unless -mkernel is used. |
2443 | bool UseBuiltins = |
2444 | Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin, |
2445 | !Args.hasArg(options::OPT_mkernel)); |
2446 | if (!UseBuiltins) |
2447 | CmdArgs.push_back("-fno-builtin"); |
2448 | |
2449 | // -ffreestanding implies -fno-builtin. |
2450 | if (Args.hasArg(options::OPT_ffreestanding)) |
2451 | UseBuiltins = false; |
2452 | |
2453 | // Process the -fno-builtin-* options. |
2454 | for (const auto &Arg : Args) { |
2455 | const Option &O = Arg->getOption(); |
2456 | if (!O.matches(options::OPT_fno_builtin_)) |
2457 | continue; |
2458 | |
2459 | Arg->claim(); |
2460 | |
2461 | // If -fno-builtin is specified, then there's no need to pass the option to |
2462 | // the frontend. |
2463 | if (!UseBuiltins) |
2464 | continue; |
2465 | |
2466 | StringRef FuncName = Arg->getValue(); |
2467 | CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName)); |
2468 | } |
2469 | |
2470 | // le32-specific flags: |
2471 | // -fno-math-builtin: clang should not convert math builtins to intrinsics |
2472 | // by default. |
2473 | if (TC.getArch() == llvm::Triple::le32) |
2474 | CmdArgs.push_back("-fno-math-builtin"); |
2475 | } |
2476 | |
2477 | void Driver::getDefaultModuleCachePath(SmallVectorImpl<char> &Result) { |
2478 | llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false, Result); |
2479 | llvm::sys::path::append(Result, "org.llvm.clang."); |
2480 | appendUserToPath(Result); |
2481 | llvm::sys::path::append(Result, "ModuleCache"); |
2482 | } |
2483 | |
2484 | static void RenderModulesOptions(Compilation &C, const Driver &D, |
2485 | const ArgList &Args, const InputInfo &Input, |
2486 | const InputInfo &Output, |
2487 | ArgStringList &CmdArgs, bool &HaveModules) { |
2488 | // -fmodules enables the use of precompiled modules (off by default). |
2489 | // Users can pass -fno-cxx-modules to turn off modules support for |
2490 | // C++/Objective-C++ programs. |
2491 | bool HaveClangModules = false; |
2492 | if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) { |
2493 | bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules, |
2494 | options::OPT_fno_cxx_modules, true); |
2495 | if (AllowedInCXX || !types::isCXX(Input.getType())) { |
2496 | CmdArgs.push_back("-fmodules"); |
2497 | HaveClangModules = true; |
2498 | } |
2499 | } |
2500 | |
2501 | HaveModules = HaveClangModules; |
2502 | if (Args.hasArg(options::OPT_fmodules_ts)) { |
2503 | CmdArgs.push_back("-fmodules-ts"); |
2504 | HaveModules = true; |
2505 | } |
2506 | |
2507 | // -fmodule-maps enables implicit reading of module map files. By default, |
2508 | // this is enabled if we are using Clang's flavor of precompiled modules. |
2509 | if (Args.hasFlag(options::OPT_fimplicit_module_maps, |
2510 | options::OPT_fno_implicit_module_maps, HaveClangModules)) |
2511 | CmdArgs.push_back("-fimplicit-module-maps"); |
2512 | |
2513 | // -fmodules-decluse checks that modules used are declared so (off by default) |
2514 | if (Args.hasFlag(options::OPT_fmodules_decluse, |
2515 | options::OPT_fno_modules_decluse, false)) |
2516 | CmdArgs.push_back("-fmodules-decluse"); |
2517 | |
2518 | // -fmodules-strict-decluse is like -fmodule-decluse, but also checks that |
2519 | // all #included headers are part of modules. |
2520 | if (Args.hasFlag(options::OPT_fmodules_strict_decluse, |
2521 | options::OPT_fno_modules_strict_decluse, false)) |
2522 | CmdArgs.push_back("-fmodules-strict-decluse"); |
2523 | |
2524 | // -fno-implicit-modules turns off implicitly compiling modules on demand. |
2525 | bool ImplicitModules = false; |
2526 | if (!Args.hasFlag(options::OPT_fimplicit_modules, |
2527 | options::OPT_fno_implicit_modules, HaveClangModules)) { |
2528 | if (HaveModules) |
2529 | CmdArgs.push_back("-fno-implicit-modules"); |
2530 | } else if (HaveModules) { |
2531 | ImplicitModules = true; |
2532 | // -fmodule-cache-path specifies where our implicitly-built module files |
2533 | // should be written. |
2534 | SmallString<128> Path; |
2535 | if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path)) |
2536 | Path = A->getValue(); |
2537 | |
2538 | if (C.isForDiagnostics()) { |
2539 | // When generating crash reports, we want to emit the modules along with |
2540 | // the reproduction sources, so we ignore any provided module path. |
2541 | Path = Output.getFilename(); |
2542 | llvm::sys::path::replace_extension(Path, ".cache"); |
2543 | llvm::sys::path::append(Path, "modules"); |
2544 | } else if (Path.empty()) { |
2545 | // No module path was provided: use the default. |
2546 | Driver::getDefaultModuleCachePath(Path); |
2547 | } |
2548 | |
2549 | const char Arg[] = "-fmodules-cache-path="; |
2550 | Path.insert(Path.begin(), Arg, Arg + strlen(Arg)); |
2551 | CmdArgs.push_back(Args.MakeArgString(Path)); |
2552 | } |
2553 | |
2554 | if (HaveModules) { |
2555 | // -fprebuilt-module-path specifies where to load the prebuilt module files. |
2556 | for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) { |
2557 | CmdArgs.push_back(Args.MakeArgString( |
2558 | std::string("-fprebuilt-module-path=") + A->getValue())); |
2559 | A->claim(); |
2560 | } |
2561 | } |
2562 | |
2563 | // -fmodule-name specifies the module that is currently being built (or |
2564 | // used for header checking by -fmodule-maps). |
2565 | Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ); |
2566 | |
2567 | // -fmodule-map-file can be used to specify files containing module |
2568 | // definitions. |
2569 | Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file); |
2570 | |
2571 | // -fbuiltin-module-map can be used to load the clang |
2572 | // builtin headers modulemap file. |
2573 | if (Args.hasArg(options::OPT_fbuiltin_module_map)) { |
2574 | SmallString<128> BuiltinModuleMap(D.ResourceDir); |
2575 | llvm::sys::path::append(BuiltinModuleMap, "include"); |
2576 | llvm::sys::path::append(BuiltinModuleMap, "module.modulemap"); |
2577 | if (llvm::sys::fs::exists(BuiltinModuleMap)) |
2578 | CmdArgs.push_back( |
2579 | Args.MakeArgString("-fmodule-map-file=" + BuiltinModuleMap)); |
2580 | } |
2581 | |
2582 | // The -fmodule-file=<name>=<file> form specifies the mapping of module |
2583 | // names to precompiled module files (the module is loaded only if used). |
2584 | // The -fmodule-file=<file> form can be used to unconditionally load |
2585 | // precompiled module files (whether used or not). |
2586 | if (HaveModules) |
2587 | Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file); |
2588 | else |
2589 | Args.ClaimAllArgs(options::OPT_fmodule_file); |
2590 | |
2591 | // When building modules and generating crashdumps, we need to dump a module |
2592 | // dependency VFS alongside the output. |
2593 | if (HaveClangModules && C.isForDiagnostics()) { |
2594 | SmallString<128> VFSDir(Output.getFilename()); |
2595 | llvm::sys::path::replace_extension(VFSDir, ".cache"); |
2596 | // Add the cache directory as a temp so the crash diagnostics pick it up. |
2597 | C.addTempFile(Args.MakeArgString(VFSDir)); |
2598 | |
2599 | llvm::sys::path::append(VFSDir, "vfs"); |
2600 | CmdArgs.push_back("-module-dependency-dir"); |
2601 | CmdArgs.push_back(Args.MakeArgString(VFSDir)); |
2602 | } |
2603 | |
2604 | if (HaveClangModules) |
2605 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path); |
2606 | |
2607 | // Pass through all -fmodules-ignore-macro arguments. |
2608 | Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro); |
2609 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval); |
2610 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after); |
2611 | |
2612 | Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp); |
2613 | |
2614 | if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) { |
2615 | if (Args.hasArg(options::OPT_fbuild_session_timestamp)) |
2616 | D.Diag(diag::err_drv_argument_not_allowed_with) |
2617 | << A->getAsString(Args) << "-fbuild-session-timestamp"; |
2618 | |
2619 | llvm::sys::fs::file_status Status; |
2620 | if (llvm::sys::fs::status(A->getValue(), Status)) |
2621 | D.Diag(diag::err_drv_no_such_file) << A->getValue(); |
2622 | CmdArgs.push_back( |
2623 | Args.MakeArgString("-fbuild-session-timestamp=" + |
2624 | Twine((uint64_t)Status.getLastModificationTime() |
2625 | .time_since_epoch() |
2626 | .count()))); |
2627 | } |
2628 | |
2629 | if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) { |
2630 | if (!Args.getLastArg(options::OPT_fbuild_session_timestamp, |
2631 | options::OPT_fbuild_session_file)) |
2632 | D.Diag(diag::err_drv_modules_validate_once_requires_timestamp); |
2633 | |
2634 | Args.AddLastArg(CmdArgs, |
2635 | options::OPT_fmodules_validate_once_per_build_session); |
2636 | } |
2637 | |
2638 | if (Args.hasFlag(options::OPT_fmodules_validate_system_headers, |
2639 | options::OPT_fno_modules_validate_system_headers, |
2640 | ImplicitModules)) |
2641 | CmdArgs.push_back("-fmodules-validate-system-headers"); |
2642 | |
2643 | Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation); |
2644 | } |
2645 | |
2646 | static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T, |
2647 | ArgStringList &CmdArgs) { |
2648 | // -fsigned-char is default. |
2649 | if (const Arg *A = Args.getLastArg(options::OPT_fsigned_char, |
2650 | options::OPT_fno_signed_char, |
2651 | options::OPT_funsigned_char, |
2652 | options::OPT_fno_unsigned_char)) { |
2653 | if (A->getOption().matches(options::OPT_funsigned_char) || |
2654 | A->getOption().matches(options::OPT_fno_signed_char)) { |
2655 | CmdArgs.push_back("-fno-signed-char"); |
2656 | } |
2657 | } else if (!isSignedCharDefault(T)) { |
2658 | CmdArgs.push_back("-fno-signed-char"); |
2659 | } |
2660 | |
2661 | if (Args.hasFlag(options::OPT_fchar8__t, options::OPT_fno_char8__t, false)) |
2662 | CmdArgs.push_back("-fchar8_t"); |
2663 | |
2664 | if (const Arg *A = Args.getLastArg(options::OPT_fshort_wchar, |
2665 | options::OPT_fno_short_wchar)) { |
2666 | if (A->getOption().matches(options::OPT_fshort_wchar)) { |
2667 | CmdArgs.push_back("-fwchar-type=short"); |
2668 | CmdArgs.push_back("-fno-signed-wchar"); |
2669 | } else { |
2670 | bool IsARM = T.isARM() || T.isThumb() || T.isAArch64(); |
2671 | CmdArgs.push_back("-fwchar-type=int"); |
2672 | if (IsARM && !(T.isOSWindows() || T.getOS() == llvm::Triple::NetBSD || |
2673 | T.getOS() == llvm::Triple::OpenBSD)) |
2674 | CmdArgs.push_back("-fno-signed-wchar"); |
2675 | else |
2676 | CmdArgs.push_back("-fsigned-wchar"); |
2677 | } |
2678 | } |
2679 | } |
2680 | |
2681 | static void RenderObjCOptions(const ToolChain &TC, const Driver &D, |
2682 | const llvm::Triple &T, const ArgList &Args, |
2683 | ObjCRuntime &Runtime, bool InferCovariantReturns, |
2684 | const InputInfo &Input, ArgStringList &CmdArgs) { |
2685 | const llvm::Triple::ArchType Arch = TC.getArch(); |
2686 | |
2687 | // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and legacy |
2688 | // is the default. Except for deployment target of 10.5, next runtime is |
2689 | // always legacy dispatch and -fno-objc-legacy-dispatch gets ignored silently. |
2690 | if (Runtime.isNonFragile()) { |
2691 | if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch, |
2692 | options::OPT_fno_objc_legacy_dispatch, |
2693 | Runtime.isLegacyDispatchDefaultForArch(Arch))) { |
2694 | if (TC.UseObjCMixedDispatch()) |
2695 | CmdArgs.push_back("-fobjc-dispatch-method=mixed"); |
2696 | else |
2697 | CmdArgs.push_back("-fobjc-dispatch-method=non-legacy"); |
2698 | } |
2699 | } |
2700 | |
2701 | // When ObjectiveC legacy runtime is in effect on MacOSX, turn on the option |
2702 | // to do Array/Dictionary subscripting by default. |
2703 | if (Arch == llvm::Triple::x86 && T.isMacOSX() && |
2704 | !T.isMacOSXVersionLT(10, 7) && |
2705 | Runtime.getKind() == ObjCRuntime::FragileMacOSX && Runtime.isNeXTFamily()) |
2706 | CmdArgs.push_back("-fobjc-subscripting-legacy-runtime"); |
2707 | |
2708 | // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc. |
2709 | // NOTE: This logic is duplicated in ToolChains.cpp. |
2710 | if (isObjCAutoRefCount(Args)) { |
2711 | TC.CheckObjCARC(); |
2712 | |
2713 | CmdArgs.push_back("-fobjc-arc"); |
2714 | |
2715 | // FIXME: It seems like this entire block, and several around it should be |
2716 | // wrapped in isObjC, but for now we just use it here as this is where it |
2717 | // was being used previously. |
2718 | if (types::isCXX(Input.getType()) && types::isObjC(Input.getType())) { |
2719 | if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) |
2720 | CmdArgs.push_back("-fobjc-arc-cxxlib=libc++"); |
2721 | else |
2722 | CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++"); |
2723 | } |
2724 | |
2725 | // Allow the user to enable full exceptions code emission. |
2726 | // We default off for Objective-C, on for Objective-C++. |
2727 | if (Args.hasFlag(options::OPT_fobjc_arc_exceptions, |
2728 | options::OPT_fno_objc_arc_exceptions, |
2729 | /*default=*/types::isCXX(Input.getType()))) |
2730 | CmdArgs.push_back("-fobjc-arc-exceptions"); |
2731 | } |
2732 | |
2733 | // Silence warning for full exception code emission options when explicitly |
2734 | // set to use no ARC. |
2735 | if (Args.hasArg(options::OPT_fno_objc_arc)) { |
2736 | Args.ClaimAllArgs(options::OPT_fobjc_arc_exceptions); |
2737 | Args.ClaimAllArgs(options::OPT_fno_objc_arc_exceptions); |
2738 | } |
2739 | |
2740 | // -fobjc-infer-related-result-type is the default, except in the Objective-C |
2741 | // rewriter. |
2742 | if (InferCovariantReturns) |
2743 | CmdArgs.push_back("-fno-objc-infer-related-result-type"); |
2744 | |
2745 | // Pass down -fobjc-weak or -fno-objc-weak if present. |
2746 | if (types::isObjC(Input.getType())) { |
2747 | auto WeakArg = |
2748 | Args.getLastArg(options::OPT_fobjc_weak, options::OPT_fno_objc_weak); |
2749 | if (!WeakArg) { |
2750 | // nothing to do |
2751 | } else if (!Runtime.allowsWeak()) { |
2752 | if (WeakArg->getOption().matches(options::OPT_fobjc_weak)) |
2753 | D.Diag(diag::err_objc_weak_unsupported); |
2754 | } else { |
2755 | WeakArg->render(Args, CmdArgs); |
2756 | } |
2757 | } |
2758 | } |
2759 | |
2760 | static void RenderDiagnosticsOptions(const Driver &D, const ArgList &Args, |
2761 | ArgStringList &CmdArgs) { |
2762 | bool CaretDefault = true; |
2763 | bool ColumnDefault = true; |
2764 | |
2765 | if (const Arg *A = Args.getLastArg(options::OPT__SLASH_diagnostics_classic, |
2766 | options::OPT__SLASH_diagnostics_column, |
2767 | options::OPT__SLASH_diagnostics_caret)) { |
2768 | switch (A->getOption().getID()) { |
2769 | case options::OPT__SLASH_diagnostics_caret: |
2770 | CaretDefault = true; |
2771 | ColumnDefault = true; |
2772 | break; |
2773 | case options::OPT__SLASH_diagnostics_column: |
2774 | CaretDefault = false; |
2775 | ColumnDefault = true; |
2776 | break; |
2777 | case options::OPT__SLASH_diagnostics_classic: |
2778 | CaretDefault = false; |
2779 | ColumnDefault = false; |
2780 | break; |
2781 | } |
2782 | } |
2783 | |
2784 | // -fcaret-diagnostics is default. |
2785 | if (!Args.hasFlag(options::OPT_fcaret_diagnostics, |
2786 | options::OPT_fno_caret_diagnostics, CaretDefault)) |
2787 | CmdArgs.push_back("-fno-caret-diagnostics"); |
2788 | |
2789 | // -fdiagnostics-fixit-info is default, only pass non-default. |
2790 | if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info, |
2791 | options::OPT_fno_diagnostics_fixit_info)) |
2792 | CmdArgs.push_back("-fno-diagnostics-fixit-info"); |
2793 | |
2794 | // Enable -fdiagnostics-show-option by default. |
2795 | if (Args.hasFlag(options::OPT_fdiagnostics_show_option, |
2796 | options::OPT_fno_diagnostics_show_option)) |
2797 | CmdArgs.push_back("-fdiagnostics-show-option"); |
2798 | |
2799 | if (const Arg *A = |
2800 | Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) { |
2801 | CmdArgs.push_back("-fdiagnostics-show-category"); |
2802 | CmdArgs.push_back(A->getValue()); |
2803 | } |
2804 | |
2805 | if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness, |
2806 | options::OPT_fno_diagnostics_show_hotness, false)) |
2807 | CmdArgs.push_back("-fdiagnostics-show-hotness"); |
2808 | |
2809 | if (const Arg *A = |
2810 | Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { |
2811 | std::string Opt = |
2812 | std::string("-fdiagnostics-hotness-threshold=") + A->getValue(); |
2813 | CmdArgs.push_back(Args.MakeArgString(Opt)); |
2814 | } |
2815 | |
2816 | if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) { |
2817 | CmdArgs.push_back("-fdiagnostics-format"); |
2818 | CmdArgs.push_back(A->getValue()); |
2819 | } |
2820 | |
2821 | if (const Arg *A = Args.getLastArg( |
2822 | options::OPT_fdiagnostics_show_note_include_stack, |
2823 | options::OPT_fno_diagnostics_show_note_include_stack)) { |
2824 | const Option &O = A->getOption(); |
2825 | if (O.matches(options::OPT_fdiagnostics_show_note_include_stack)) |
2826 | CmdArgs.push_back("-fdiagnostics-show-note-include-stack"); |
2827 | else |
2828 | CmdArgs.push_back("-fno-diagnostics-show-note-include-stack"); |
2829 | } |
2830 | |
2831 | // Color diagnostics are parsed by the driver directly from argv and later |
2832 | // re-parsed to construct this job; claim any possible color diagnostic here |
2833 | // to avoid warn_drv_unused_argument and diagnose bad |
2834 | // OPT_fdiagnostics_color_EQ values. |
2835 | for (const Arg *A : Args) { |
2836 | const Option &O = A->getOption(); |
2837 | if (!O.matches(options::OPT_fcolor_diagnostics) && |
2838 | !O.matches(options::OPT_fdiagnostics_color) && |
2839 | !O.matches(options::OPT_fno_color_diagnostics) && |
2840 | !O.matches(options::OPT_fno_diagnostics_color) && |
2841 | !O.matches(options::OPT_fdiagnostics_color_EQ)) |
2842 | continue; |
2843 | |
2844 | if (O.matches(options::OPT_fdiagnostics_color_EQ)) { |
2845 | StringRef Value(A->getValue()); |
2846 | if (Value != "always" && Value != "never" && Value != "auto") |
2847 | D.Diag(diag::err_drv_clang_unsupported) |
2848 | << ("-fdiagnostics-color=" + Value).str(); |
2849 | } |
2850 | A->claim(); |
2851 | } |
2852 | |
2853 | if (D.getDiags().getDiagnosticOptions().ShowColors) |
2854 | CmdArgs.push_back("-fcolor-diagnostics"); |
2855 | |
2856 | if (Args.hasArg(options::OPT_fansi_escape_codes)) |
2857 | CmdArgs.push_back("-fansi-escape-codes"); |
2858 | |
2859 | if (!Args.hasFlag(options::OPT_fshow_source_location, |
2860 | options::OPT_fno_show_source_location)) |
2861 | CmdArgs.push_back("-fno-show-source-location"); |
2862 | |
2863 | if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths)) |
2864 | CmdArgs.push_back("-fdiagnostics-absolute-paths"); |
2865 | |
2866 | if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column, |
2867 | ColumnDefault)) |
2868 | CmdArgs.push_back("-fno-show-column"); |
2869 | |
2870 | if (!Args.hasFlag(options::OPT_fspell_checking, |
2871 | options::OPT_fno_spell_checking)) |
2872 | CmdArgs.push_back("-fno-spell-checking"); |
2873 | } |
2874 | |
2875 | static void RenderDebugOptions(const ToolChain &TC, const Driver &D, |
2876 | const llvm::Triple &T, const ArgList &Args, |
2877 | bool EmitCodeView, bool IsWindowsMSVC, |
2878 | ArgStringList &CmdArgs, |
2879 | codegenoptions::DebugInfoKind &DebugInfoKind, |
2880 | const Arg *&SplitDWARFArg) { |
2881 | if (Args.hasFlag(options::OPT_fdebug_info_for_profiling, |
2882 | options::OPT_fno_debug_info_for_profiling, false) && |
2883 | checkDebugInfoOption( |
2884 | Args.getLastArg(options::OPT_fdebug_info_for_profiling), Args, D, TC)) |
2885 | CmdArgs.push_back("-fdebug-info-for-profiling"); |
2886 | |
2887 | // The 'g' groups options involve a somewhat intricate sequence of decisions |
2888 | // about what to pass from the driver to the frontend, but by the time they |
2889 | // reach cc1 they've been factored into three well-defined orthogonal choices: |
2890 | // * what level of debug info to generate |
2891 | // * what dwarf version to write |
2892 | // * what debugger tuning to use |
2893 | // This avoids having to monkey around further in cc1 other than to disable |
2894 | // codeview if not running in a Windows environment. Perhaps even that |
2895 | // decision should be made in the driver as well though. |
2896 | unsigned DWARFVersion = 0; |
2897 | llvm::DebuggerKind DebuggerTuning = TC.getDefaultDebuggerTuning(); |
2898 | |
2899 | bool SplitDWARFInlining = |
2900 | Args.hasFlag(options::OPT_fsplit_dwarf_inlining, |
2901 | options::OPT_fno_split_dwarf_inlining, true); |
2902 | |
2903 | Args.ClaimAllArgs(options::OPT_g_Group); |
2904 | |
2905 | SplitDWARFArg = Args.getLastArg(options::OPT_gsplit_dwarf); |
2906 | |
2907 | if (SplitDWARFArg && !checkDebugInfoOption(SplitDWARFArg, Args, D, TC)) { |
2908 | SplitDWARFArg = nullptr; |
2909 | SplitDWARFInlining = false; |
2910 | } |
2911 | |
2912 | if (const Arg *A = Args.getLastArg(options::OPT_g_Group)) { |
2913 | if (checkDebugInfoOption(A, Args, D, TC)) { |
2914 | // If the last option explicitly specified a debug-info level, use it. |
2915 | if (A->getOption().matches(options::OPT_gN_Group)) { |
2916 | DebugInfoKind = DebugLevelToInfoKind(*A); |
2917 | // If you say "-gsplit-dwarf -gline-tables-only", -gsplit-dwarf loses. |
2918 | // But -gsplit-dwarf is not a g_group option, hence we have to check the |
2919 | // order explicitly. If -gsplit-dwarf wins, we fix DebugInfoKind later. |
2920 | // This gets a bit more complicated if you've disabled inline info in |
2921 | // the skeleton CUs (SplitDWARFInlining) - then there's value in |
2922 | // composing split-dwarf and line-tables-only, so let those compose |
2923 | // naturally in that case. And if you just turned off debug info, |
2924 | // (-gsplit-dwarf -g0) - do that. |
2925 | if (SplitDWARFArg) { |
2926 | if (A->getIndex() > SplitDWARFArg->getIndex()) { |
2927 | if (DebugInfoKind == codegenoptions::NoDebugInfo || |
2928 | (DebugInfoKind == codegenoptions::DebugLineTablesOnly && |
2929 | SplitDWARFInlining)) |
2930 | SplitDWARFArg = nullptr; |
2931 | } else if (SplitDWARFInlining) |
2932 | DebugInfoKind = codegenoptions::NoDebugInfo; |
2933 | } |
2934 | } else { |
2935 | // For any other 'g' option, use Limited. |
2936 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
2937 | } |
2938 | } else { |
2939 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
2940 | } |
2941 | } |
2942 | |
2943 | // If a debugger tuning argument appeared, remember it. |
2944 | if (const Arg *A = |
2945 | Args.getLastArg(options::OPT_gTune_Group, options::OPT_ggdbN_Group)) { |
2946 | if (checkDebugInfoOption(A, Args, D, TC)) { |
2947 | if (A->getOption().matches(options::OPT_glldb)) |
2948 | DebuggerTuning = llvm::DebuggerKind::LLDB; |
2949 | else if (A->getOption().matches(options::OPT_gsce)) |
2950 | DebuggerTuning = llvm::DebuggerKind::SCE; |
2951 | else |
2952 | DebuggerTuning = llvm::DebuggerKind::GDB; |
2953 | } |
2954 | } |
2955 | |
2956 | // If a -gdwarf argument appeared, remember it. |
2957 | if (const Arg *A = |
2958 | Args.getLastArg(options::OPT_gdwarf_2, options::OPT_gdwarf_3, |
2959 | options::OPT_gdwarf_4, options::OPT_gdwarf_5)) |
2960 | if (checkDebugInfoOption(A, Args, D, TC)) |
2961 | DWARFVersion = DwarfVersionNum(A->getSpelling()); |
2962 | |
2963 | // Forward -gcodeview. EmitCodeView might have been set by CL-compatibility |
2964 | // argument parsing. |
2965 | if (EmitCodeView) { |
2966 | if (const Arg *A = Args.getLastArg(options::OPT_gcodeview)) { |
2967 | EmitCodeView = checkDebugInfoOption(A, Args, D, TC); |
2968 | if (EmitCodeView) { |
2969 | // DWARFVersion remains at 0 if no explicit choice was made. |
2970 | CmdArgs.push_back("-gcodeview"); |
2971 | } |
2972 | } |
2973 | } |
2974 | |
2975 | if (!EmitCodeView && DWARFVersion == 0 && |
2976 | DebugInfoKind != codegenoptions::NoDebugInfo) |
2977 | DWARFVersion = TC.GetDefaultDwarfVersion(); |
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 |
2984 | // CodeView. Clang doesn't track end columns, just starting columns, which, |
2985 | // in theory, is fine for CodeView (and PDB). In practice, however, the |
2986 | // Microsoft debuggers don't handle missing end columns well, so it's better |
2987 | // not to include any column info. |
2988 | if (const Arg *A = Args.getLastArg(options::OPT_gcolumn_info)) |
2989 | (void)checkDebugInfoOption(A, Args, D, TC); |
2990 | if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info, |
2991 | /*Default=*/!EmitCodeView && |
2992 | DebuggerTuning != llvm::DebuggerKind::SCE)) |
2993 | CmdArgs.push_back("-dwarf-column-info"); |
2994 | |
2995 | // FIXME: Move backend command line options to the module. |
2996 | // If -gline-tables-only is the last option it wins. |
2997 | if (const Arg *A = Args.getLastArg(options::OPT_gmodules)) |
2998 | if (checkDebugInfoOption(A, Args, D, TC)) { |
2999 | if (DebugInfoKind != codegenoptions::DebugLineTablesOnly) { |
3000 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
3001 | CmdArgs.push_back("-dwarf-ext-refs"); |
3002 | CmdArgs.push_back("-fmodule-format=obj"); |
3003 | } |
3004 | } |
3005 | |
3006 | // -gsplit-dwarf should turn on -g and enable the backend dwarf |
3007 | // splitting and extraction. |
3008 | // FIXME: Currently only works on Linux. |
3009 | if (T.isOSLinux()) { |
3010 | if (!SplitDWARFInlining) |
3011 | CmdArgs.push_back("-fno-split-dwarf-inlining"); |
3012 | |
3013 | if (SplitDWARFArg) { |
3014 | if (DebugInfoKind == codegenoptions::NoDebugInfo) |
3015 | DebugInfoKind = codegenoptions::LimitedDebugInfo; |
3016 | CmdArgs.push_back("-enable-split-dwarf"); |
3017 | } |
3018 | } |
3019 | |
3020 | // After we've dealt with all combinations of things that could |
3021 | // make DebugInfoKind be other than None or DebugLineTablesOnly, |
3022 | // figure out if we need to "upgrade" it to standalone debug info. |
3023 | // We parse these two '-f' options whether or not they will be used, |
3024 | // to claim them even if you wrote "-fstandalone-debug -gline-tables-only" |
3025 | bool NeedFullDebug = Args.hasFlag(options::OPT_fstandalone_debug, |
3026 | options::OPT_fno_standalone_debug, |
3027 | TC.GetDefaultStandaloneDebug()); |
3028 | if (const Arg *A = Args.getLastArg(options::OPT_fstandalone_debug)) |
3029 | (void)checkDebugInfoOption(A, Args, D, TC); |
3030 | if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug) |
3031 | DebugInfoKind = codegenoptions::FullDebugInfo; |
3032 | |
3033 | if (Args.hasFlag(options::OPT_gembed_source, options::OPT_gno_embed_source, |
3034 | false)) { |
3035 | // Source embedding is a vendor extension to DWARF v5. By now we have |
3036 | // checked if a DWARF version was stated explicitly, and have otherwise |
3037 | // fallen back to the target default, so if this is still not at least 5 |
3038 | // we emit an error. |
3039 | const Arg *A = Args.getLastArg(options::OPT_gembed_source); |
3040 | if (DWARFVersion < 5) |
3041 | D.Diag(diag::err_drv_argument_only_allowed_with) |
3042 | << A->getAsString(Args) << "-gdwarf-5"; |
3043 | else if (checkDebugInfoOption(A, Args, D, TC)) |
3044 | CmdArgs.push_back("-gembed-source"); |
3045 | } |
3046 | |
3047 | RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DWARFVersion, |
3048 | DebuggerTuning); |
3049 | |
3050 | // -fdebug-macro turns on macro debug info generation. |
3051 | if (Args.hasFlag(options::OPT_fdebug_macro, options::OPT_fno_debug_macro, |
3052 | false)) |
3053 | if (checkDebugInfoOption(Args.getLastArg(options::OPT_fdebug_macro), Args, |
3054 | D, TC)) |
3055 | CmdArgs.push_back("-debug-info-macro"); |
3056 | |
3057 | // -ggnu-pubnames turns on gnu style pubnames in the backend. |
3058 | if (Args.hasFlag(options::OPT_ggnu_pubnames, options::OPT_gno_gnu_pubnames, |
3059 | false)) |
3060 | if (checkDebugInfoOption(Args.getLastArg(options::OPT_ggnu_pubnames), Args, |
3061 | D, TC)) |
3062 | CmdArgs.push_back("-ggnu-pubnames"); |
3063 | |
3064 | // -gdwarf-aranges turns on the emission of the aranges section in the |
3065 | // backend. |
3066 | // Always enabled for SCE tuning. |
3067 | bool NeedAranges = DebuggerTuning == llvm::DebuggerKind::SCE; |
3068 | if (const Arg *A = Args.getLastArg(options::OPT_gdwarf_aranges)) |
3069 | NeedAranges = checkDebugInfoOption(A, Args, D, TC) || NeedAranges; |
3070 | if (NeedAranges) { |
3071 | CmdArgs.push_back("-mllvm"); |
3072 | CmdArgs.push_back("-generate-arange-section"); |
3073 | } |
3074 | |
3075 | if (Args.hasFlag(options::OPT_fdebug_types_section, |
3076 | options::OPT_fno_debug_types_section, false)) { |
3077 | if (!T.isOSBinFormatELF()) { |
3078 | D.Diag(diag::err_drv_unsupported_opt_for_target) |
3079 | << Args.getLastArg(options::OPT_fdebug_types_section) |
3080 | ->getAsString(Args) |
3081 | << T.getTriple(); |
3082 | } else if (checkDebugInfoOption( |
3083 | Args.getLastArg(options::OPT_fdebug_types_section), Args, D, |
3084 | TC)) { |
3085 | CmdArgs.push_back("-mllvm"); |
3086 | CmdArgs.push_back("-generate-type-units"); |
3087 | } |
3088 | } |
3089 | |
3090 | // Decide how to render forward declarations of template instantiations. |
3091 | // SCE wants full descriptions, others just get them in the name. |
3092 | if (DebuggerTuning == llvm::DebuggerKind::SCE) |
3093 | CmdArgs.push_back("-debug-forward-template-params"); |
3094 | |
3095 | // Do we need to explicitly import anonymous namespaces into the parent |
3096 | // scope? |
3097 | if (DebuggerTuning == llvm::DebuggerKind::SCE) |
3098 | CmdArgs.push_back("-dwarf-explicit-import"); |
3099 | |
3100 | RenderDebugInfoCompressionArgs(Args, CmdArgs, D, TC); |
3101 | } |
3102 | |
3103 | void Clang::ConstructJob(Compilation &C, const JobAction &JA, |
3104 | const InputInfo &Output, const InputInfoList &Inputs, |
3105 | const ArgList &Args, const char *LinkingOutput) const { |
3106 | const llvm::Triple &RawTriple = getToolChain().getTriple(); |
3107 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
3108 | const std::string &TripleStr = Triple.getTriple(); |
3109 | |
3110 | bool KernelOrKext = |
3111 | Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); |
3112 | const Driver &D = getToolChain().getDriver(); |
3113 | ArgStringList CmdArgs; |
3114 | |
3115 | // Check number of inputs for sanity. We need at least one input. |
3116 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3116, __extension__ __PRETTY_FUNCTION__)); |
3117 | const InputInfo &Input = Inputs[0]; |
3118 | // CUDA/HIP compilation may have multiple inputs (source file + results of |
3119 | // device-side compilations). OpenMP device jobs also take the host IR as a |
3120 | // second input. All other jobs are expected to have exactly one |
3121 | // input. |
3122 | bool IsCuda = JA.isOffloading(Action::OFK_Cuda); |
3123 | bool IsHIP = JA.isOffloading(Action::OFK_HIP); |
3124 | bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP); |
3125 | assert((IsCuda || IsHIP || (IsOpenMPDevice && Inputs.size() == 2) ||(static_cast <bool> ((IsCuda || IsHIP || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && "Unable to handle multiple inputs.") ? void (0) : __assert_fail ("(IsCuda || IsHIP || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && \"Unable to handle multiple inputs.\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3127, __extension__ __PRETTY_FUNCTION__)) |
3126 | Inputs.size() == 1) &&(static_cast <bool> ((IsCuda || IsHIP || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && "Unable to handle multiple inputs.") ? void (0) : __assert_fail ("(IsCuda || IsHIP || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && \"Unable to handle multiple inputs.\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3127, __extension__ __PRETTY_FUNCTION__)) |
3127 | "Unable to handle multiple inputs.")(static_cast <bool> ((IsCuda || IsHIP || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && "Unable to handle multiple inputs.") ? void (0) : __assert_fail ("(IsCuda || IsHIP || (IsOpenMPDevice && Inputs.size() == 2) || Inputs.size() == 1) && \"Unable to handle multiple inputs.\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3127, __extension__ __PRETTY_FUNCTION__)); |
3128 | |
3129 | const llvm::Triple *AuxTriple = |
3130 | IsCuda ? getToolChain().getAuxTriple() : nullptr; |
3131 | |
3132 | bool IsWindowsGNU = RawTriple.isWindowsGNUEnvironment(); |
3133 | bool IsWindowsCygnus = RawTriple.isWindowsCygwinEnvironment(); |
3134 | bool IsWindowsMSVC = RawTriple.isWindowsMSVCEnvironment(); |
3135 | bool IsIAMCU = RawTriple.isOSIAMCU(); |
3136 | |
3137 | // Adjust IsWindowsXYZ for CUDA/HIP compilations. Even when compiling in |
3138 | // device mode (i.e., getToolchain().getTriple() is NVPTX/AMDGCN, not |
3139 | // Windows), we need to pass Windows-specific flags to cc1. |
3140 | if (IsCuda || IsHIP) { |
3141 | IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment(); |
3142 | IsWindowsGNU |= AuxTriple && AuxTriple->isWindowsGNUEnvironment(); |
Value stored to 'IsWindowsGNU' is never read | |
3143 | IsWindowsCygnus |= AuxTriple && AuxTriple->isWindowsCygwinEnvironment(); |
3144 | } |
3145 | |
3146 | // C++ is not supported for IAMCU. |
3147 | if (IsIAMCU && types::isCXX(Input.getType())) |
3148 | D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU"; |
3149 | |
3150 | // Invoke ourselves in -cc1 mode. |
3151 | // |
3152 | // FIXME: Implement custom jobs for internal actions. |
3153 | CmdArgs.push_back("-cc1"); |
3154 | |
3155 | // Add the "effective" target triple. |
3156 | CmdArgs.push_back("-triple"); |
3157 | CmdArgs.push_back(Args.MakeArgString(TripleStr)); |
3158 | |
3159 | if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) { |
3160 | DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args); |
3161 | Args.ClaimAllArgs(options::OPT_MJ); |
3162 | } |
3163 | |
3164 | if (IsCuda || IsHIP) { |
3165 | // We have to pass the triple of the host if compiling for a CUDA/HIP device |
3166 | // and vice-versa. |
3167 | std::string NormalizedTriple; |
3168 | if (JA.isDeviceOffloading(Action::OFK_Cuda) || |
3169 | JA.isDeviceOffloading(Action::OFK_HIP)) |
3170 | NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>() |
3171 | ->getTriple() |
3172 | .normalize(); |
3173 | else |
3174 | NormalizedTriple = |
3175 | (IsCuda ? C.getSingleOffloadToolChain<Action::OFK_Cuda>() |
3176 | : C.getSingleOffloadToolChain<Action::OFK_HIP>()) |
3177 | ->getTriple() |
3178 | .normalize(); |
3179 | |
3180 | CmdArgs.push_back("-aux-triple"); |
3181 | CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); |
3182 | } |
3183 | |
3184 | if (IsOpenMPDevice) { |
3185 | // We have to pass the triple of the host if compiling for an OpenMP device. |
3186 | std::string NormalizedTriple = |
3187 | C.getSingleOffloadToolChain<Action::OFK_Host>() |
3188 | ->getTriple() |
3189 | .normalize(); |
3190 | CmdArgs.push_back("-aux-triple"); |
3191 | CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); |
3192 | } |
3193 | |
3194 | if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm || |
3195 | Triple.getArch() == llvm::Triple::thumb)) { |
3196 | unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6; |
3197 | unsigned Version; |
3198 | Triple.getArchName().substr(Offset).getAsInteger(10, Version); |
3199 | if (Version < 7) |
3200 | D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName() |
3201 | << TripleStr; |
3202 | } |
3203 | |
3204 | // Push all default warning arguments that are specific to |
3205 | // the given target. These come before user provided warning options |
3206 | // are provided. |
3207 | getToolChain().addClangWarningOptions(CmdArgs); |
3208 | |
3209 | // Select the appropriate action. |
3210 | RewriteKind rewriteKind = RK_None; |
3211 | |
3212 | if (isa<AnalyzeJobAction>(JA)) { |
3213 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3213, __extension__ __PRETTY_FUNCTION__)); |
3214 | CmdArgs.push_back("-analyze"); |
3215 | } else if (isa<MigrateJobAction>(JA)) { |
3216 | CmdArgs.push_back("-migrate"); |
3217 | } else if (isa<PreprocessJobAction>(JA)) { |
3218 | if (Output.getType() == types::TY_Dependencies) |
3219 | CmdArgs.push_back("-Eonly"); |
3220 | else { |
3221 | CmdArgs.push_back("-E"); |
3222 | if (Args.hasArg(options::OPT_rewrite_objc) && |
3223 | !Args.hasArg(options::OPT_g_Group)) |
3224 | CmdArgs.push_back("-P"); |
3225 | } |
3226 | } else if (isa<AssembleJobAction>(JA)) { |
3227 | CmdArgs.push_back("-emit-obj"); |
3228 | |
3229 | CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D); |
3230 | |
3231 | // Also ignore explicit -force_cpusubtype_ALL option. |
3232 | (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); |
3233 | } else if (isa<PrecompileJobAction>(JA)) { |
3234 | // Use PCH if the user requested it. |
3235 | bool UsePCH = D.CCCUsePCH; |
3236 | |
3237 | if (JA.getType() == types::TY_Nothing) |
3238 | CmdArgs.push_back("-fsyntax-only"); |
3239 | else if (JA.getType() == types::TY_ModuleFile) |
3240 | CmdArgs.push_back("-emit-module-interface"); |
3241 | else if (UsePCH) |
3242 | CmdArgs.push_back("-emit-pch"); |
3243 | else |
3244 | CmdArgs.push_back("-emit-pth"); |
3245 | } else if (isa<VerifyPCHJobAction>(JA)) { |
3246 | CmdArgs.push_back("-verify-pch"); |
3247 | } else { |
3248 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3249, __extension__ __PRETTY_FUNCTION__)) |
3249 | "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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3249, __extension__ __PRETTY_FUNCTION__)); |
3250 | if (JA.getType() == types::TY_Nothing) { |
3251 | CmdArgs.push_back("-fsyntax-only"); |
3252 | } else if (JA.getType() == types::TY_LLVM_IR || |
3253 | JA.getType() == types::TY_LTO_IR) { |
3254 | CmdArgs.push_back("-emit-llvm"); |
3255 | } else if (JA.getType() == types::TY_LLVM_BC || |
3256 | JA.getType() == types::TY_LTO_BC) { |
3257 | CmdArgs.push_back("-emit-llvm-bc"); |
3258 | } else if (JA.getType() == types::TY_PP_Asm) { |
3259 | CmdArgs.push_back("-S"); |
3260 | } else if (JA.getType() == types::TY_AST) { |
3261 | CmdArgs.push_back("-emit-pch"); |
3262 | } else if (JA.getType() == types::TY_ModuleFile) { |
3263 | CmdArgs.push_back("-module-file-info"); |
3264 | } else if (JA.getType() == types::TY_RewrittenObjC) { |
3265 | CmdArgs.push_back("-rewrite-objc"); |
3266 | rewriteKind = RK_NonFragile; |
3267 | } else if (JA.getType() == types::TY_RewrittenLegacyObjC) { |
3268 | CmdArgs.push_back("-rewrite-objc"); |
3269 | rewriteKind = RK_Fragile; |
3270 | } else { |
3271 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3271, __extension__ __PRETTY_FUNCTION__)); |
3272 | } |
3273 | |
3274 | // Preserve use-list order by default when emitting bitcode, so that |
3275 | // loading the bitcode up in 'opt' or 'llc' and running passes gives the |
3276 | // same result as running passes here. For LTO, we don't need to preserve |
3277 | // the use-list order, since serialization to bitcode is part of the flow. |
3278 | if (JA.getType() == types::TY_LLVM_BC) |
3279 | CmdArgs.push_back("-emit-llvm-uselists"); |
3280 | |
3281 | // Device-side jobs do not support LTO. |
3282 | bool isDeviceOffloadAction = !(JA.isDeviceOffloading(Action::OFK_None) || |
3283 | JA.isDeviceOffloading(Action::OFK_Host)); |
3284 | |
3285 | if (D.isUsingLTO() && !isDeviceOffloadAction) { |
3286 | Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ); |
3287 | |
3288 | // The Darwin and PS4 linkers currently use the legacy LTO API, which |
3289 | // does not support LTO unit features (CFI, whole program vtable opt) |
3290 | // under ThinLTO. |
3291 | if (!(RawTriple.isOSDarwin() || RawTriple.isPS4()) || |
3292 | D.getLTOMode() == LTOK_Full) |
3293 | CmdArgs.push_back("-flto-unit"); |
3294 | } |
3295 | } |
3296 | |
3297 | if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) { |
3298 | if (!types::isLLVMIR(Input.getType())) |
3299 | D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) |
3300 | << "-x ir"; |
3301 | Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ); |
3302 | } |
3303 | |
3304 | if (Args.getLastArg(options::OPT_save_temps_EQ)) |
3305 | Args.AddLastArg(CmdArgs, options::OPT_save_temps_EQ); |
3306 | |
3307 | // Embed-bitcode option. |
3308 | if (C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO() && |
3309 | (isa<BackendJobAction>(JA) || isa<AssembleJobAction>(JA))) { |
3310 | // Add flags implied by -fembed-bitcode. |
3311 | Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ); |
3312 | // Disable all llvm IR level optimizations. |
3313 | CmdArgs.push_back("-disable-llvm-passes"); |
3314 | } |
3315 | if (C.getDriver().embedBitcodeMarkerOnly() && !C.getDriver().isUsingLTO()) |
3316 | CmdArgs.push_back("-fembed-bitcode=marker"); |
3317 | |
3318 | // We normally speed up the clang process a bit by skipping destructors at |
3319 | // exit, but when we're generating diagnostics we can rely on some of the |
3320 | // cleanup. |
3321 | if (!C.isForDiagnostics()) |
3322 | CmdArgs.push_back("-disable-free"); |
3323 | |
3324 | #ifdef NDEBUG |
3325 | const bool IsAssertBuild = false; |
3326 | #else |
3327 | const bool IsAssertBuild = true; |
3328 | #endif |
3329 | |
3330 | // Disable the verification pass in -asserts builds. |
3331 | if (!IsAssertBuild) |
3332 | CmdArgs.push_back("-disable-llvm-verifier"); |
3333 | |
3334 | // Discard value names in assert builds unless otherwise specified. |
3335 | if (Args.hasFlag(options::OPT_fdiscard_value_names, |
3336 | options::OPT_fno_discard_value_names, !IsAssertBuild)) |
3337 | CmdArgs.push_back("-discard-value-names"); |
3338 | |
3339 | // Set the main file name, so that debug info works even with |
3340 | // -save-temps. |
3341 | CmdArgs.push_back("-main-file-name"); |
3342 | CmdArgs.push_back(getBaseInputName(Args, Input)); |
3343 | |
3344 | // Some flags which affect the language (via preprocessor |
3345 | // defines). |
3346 | if (Args.hasArg(options::OPT_static)) |
3347 | CmdArgs.push_back("-static-define"); |
3348 | |
3349 | if (isa<AnalyzeJobAction>(JA)) |
3350 | RenderAnalyzerOptions(Args, CmdArgs, Triple, Input); |
3351 | |
3352 | CheckCodeGenerationOptions(D, Args); |
3353 | |
3354 | unsigned FunctionAlignment = ParseFunctionAlignment(getToolChain(), Args); |
3355 | assert(FunctionAlignment <= 31 && "function alignment will be truncated!")(static_cast <bool> (FunctionAlignment <= 31 && "function alignment will be truncated!") ? void (0) : __assert_fail ("FunctionAlignment <= 31 && \"function alignment will be truncated!\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3355, __extension__ __PRETTY_FUNCTION__)); |
3356 | if (FunctionAlignment) { |
3357 | CmdArgs.push_back("-function-alignment"); |
3358 | CmdArgs.push_back(Args.MakeArgString(std::to_string(FunctionAlignment))); |
3359 | } |
3360 | |
3361 | llvm::Reloc::Model RelocationModel; |
3362 | unsigned PICLevel; |
3363 | bool IsPIE; |
3364 | std::tie(RelocationModel, PICLevel, IsPIE) = |
3365 | ParsePICArgs(getToolChain(), Args); |
3366 | |
3367 | const char *RMName = RelocationModelName(RelocationModel); |
3368 | |
3369 | if ((RelocationModel == llvm::Reloc::ROPI || |
3370 | RelocationModel == llvm::Reloc::ROPI_RWPI) && |
3371 | types::isCXX(Input.getType()) && |
3372 | !Args.hasArg(options::OPT_fallow_unsupported)) |
3373 | D.Diag(diag::err_drv_ropi_incompatible_with_cxx); |
3374 | |
3375 | if (RMName) { |
3376 | CmdArgs.push_back("-mrelocation-model"); |
3377 | CmdArgs.push_back(RMName); |
3378 | } |
3379 | if (PICLevel > 0) { |
3380 | CmdArgs.push_back("-pic-level"); |
3381 | CmdArgs.push_back(PICLevel == 1 ? "1" : "2"); |
3382 | if (IsPIE) |
3383 | CmdArgs.push_back("-pic-is-pie"); |
3384 | } |
3385 | |
3386 | if (Arg *A = Args.getLastArg(options::OPT_meabi)) { |
3387 | CmdArgs.push_back("-meabi"); |
3388 | CmdArgs.push_back(A->getValue()); |
3389 | } |
3390 | |
3391 | CmdArgs.push_back("-mthread-model"); |
3392 | if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) { |
3393 | if (!getToolChain().isThreadModelSupported(A->getValue())) |
3394 | D.Diag(diag::err_drv_invalid_thread_model_for_target) |
3395 | << A->getValue() << A->getAsString(Args); |
3396 | CmdArgs.push_back(A->getValue()); |
3397 | } |
3398 | else |
3399 | CmdArgs.push_back(Args.MakeArgString(getToolChain().getThreadModel())); |
3400 | |
3401 | Args.AddLastArg(CmdArgs, options::OPT_fveclib); |
3402 | |
3403 | if (Args.hasFlag(options::OPT_fmerge_all_constants, |
3404 | options::OPT_fno_merge_all_constants, false)) |
3405 | CmdArgs.push_back("-fmerge-all-constants"); |
3406 | |
3407 | if (Args.hasFlag(options::OPT_fno_delete_null_pointer_checks, |
3408 | options::OPT_fdelete_null_pointer_checks, false)) |
3409 | CmdArgs.push_back("-fno-delete-null-pointer-checks"); |
3410 | |
3411 | // LLVM Code Generator Options. |
3412 | |
3413 | if (Args.hasArg(options::OPT_frewrite_map_file) || |
3414 | Args.hasArg(options::OPT_frewrite_map_file_EQ)) { |
3415 | for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file, |
3416 | options::OPT_frewrite_map_file_EQ)) { |
3417 | StringRef Map = A->getValue(); |
3418 | if (!llvm::sys::fs::exists(Map)) { |
3419 | D.Diag(diag::err_drv_no_such_file) << Map; |
3420 | } else { |
3421 | CmdArgs.push_back("-frewrite-map-file"); |
3422 | CmdArgs.push_back(A->getValue()); |
3423 | A->claim(); |
3424 | } |
3425 | } |
3426 | } |
3427 | |
3428 | if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) { |
3429 | StringRef v = A->getValue(); |
3430 | CmdArgs.push_back("-mllvm"); |
3431 | CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v)); |
3432 | A->claim(); |
3433 | } |
3434 | |
3435 | if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables, |
3436 | true)) |
3437 | CmdArgs.push_back("-fno-jump-tables"); |
3438 | |
3439 | if (Args.hasFlag(options::OPT_fprofile_sample_accurate, |
3440 | options::OPT_fno_profile_sample_accurate, false)) |
3441 | CmdArgs.push_back("-fprofile-sample-accurate"); |
3442 | |
3443 | if (!Args.hasFlag(options::OPT_fpreserve_as_comments, |
3444 | options::OPT_fno_preserve_as_comments, true)) |
3445 | CmdArgs.push_back("-fno-preserve-as-comments"); |
3446 | |
3447 | if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { |
3448 | CmdArgs.push_back("-mregparm"); |
3449 | CmdArgs.push_back(A->getValue()); |
3450 | } |
3451 | |
3452 | if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return, |
3453 | options::OPT_freg_struct_return)) { |
3454 | if (getToolChain().getArch() != llvm::Triple::x86) { |
3455 | D.Diag(diag::err_drv_unsupported_opt_for_target) |
3456 | << A->getSpelling() << RawTriple.str(); |
3457 | } else if (A->getOption().matches(options::OPT_fpcc_struct_return)) { |
3458 | CmdArgs.push_back("-fpcc-struct-return"); |
3459 | } else { |
3460 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3460, __extension__ __PRETTY_FUNCTION__)); |
3461 | CmdArgs.push_back("-freg-struct-return"); |
3462 | } |
3463 | } |
3464 | |
3465 | if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false)) |
3466 | CmdArgs.push_back("-fdefault-calling-conv=stdcall"); |
3467 | |
3468 | if (shouldUseFramePointer(Args, RawTriple)) |
3469 | CmdArgs.push_back("-mdisable-fp-elim"); |
3470 | if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss, |
3471 | options::OPT_fno_zero_initialized_in_bss)) |
3472 | CmdArgs.push_back("-mno-zero-initialized-in-bss"); |
3473 | |
3474 | bool OFastEnabled = isOptimizationLevelFast(Args); |
3475 | // If -Ofast is the optimization level, then -fstrict-aliasing should be |
3476 | // enabled. This alias option is being used to simplify the hasFlag logic. |
3477 | OptSpecifier StrictAliasingAliasOption = |
3478 | OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing; |
3479 | // We turn strict aliasing off by default if we're in CL mode, since MSVC |
3480 | // doesn't do any TBAA. |
3481 | bool TBAAOnByDefault = !D.IsCLMode(); |
3482 | if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption, |
3483 | options::OPT_fno_strict_aliasing, TBAAOnByDefault)) |
3484 | CmdArgs.push_back("-relaxed-aliasing"); |
3485 | if (!Args.hasFlag(options::OPT_fstruct_path_tbaa, |
3486 | options::OPT_fno_struct_path_tbaa)) |
3487 | CmdArgs.push_back("-no-struct-path-tbaa"); |
3488 | if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums, |
3489 | false)) |
3490 | CmdArgs.push_back("-fstrict-enums"); |
3491 | if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return, |
3492 | true)) |
3493 | CmdArgs.push_back("-fno-strict-return"); |
3494 | if (Args.hasFlag(options::OPT_fallow_editor_placeholders, |
3495 | options::OPT_fno_allow_editor_placeholders, false)) |
3496 | CmdArgs.push_back("-fallow-editor-placeholders"); |
3497 | if (Args.hasFlag(options::OPT_fstrict_vtable_pointers, |
3498 | options::OPT_fno_strict_vtable_pointers, |
3499 | false)) |
3500 | CmdArgs.push_back("-fstrict-vtable-pointers"); |
3501 | if (Args.hasFlag(options::OPT_fforce_emit_vtables, |
3502 | options::OPT_fno_force_emit_vtables, |
3503 | false)) |
3504 | CmdArgs.push_back("-fforce-emit-vtables"); |
3505 | if (!Args.hasFlag(options::OPT_foptimize_sibling_calls, |
3506 | options::OPT_fno_optimize_sibling_calls)) |
3507 | CmdArgs.push_back("-mdisable-tail-calls"); |
3508 | if (Args.hasFlag(options::OPT_fno_escaping_block_tail_calls, |
3509 | options::OPT_fescaping_block_tail_calls, false)) |
3510 | CmdArgs.push_back("-fno-escaping-block-tail-calls"); |
3511 | |
3512 | Args.AddLastArg(CmdArgs, options::OPT_ffine_grained_bitfield_accesses, |
3513 | options::OPT_fno_fine_grained_bitfield_accesses); |
3514 | |
3515 | // Handle segmented stacks. |
3516 | if (Args.hasArg(options::OPT_fsplit_stack)) |
3517 | CmdArgs.push_back("-split-stacks"); |
3518 | |
3519 | RenderFloatingPointOptions(getToolChain(), D, OFastEnabled, Args, CmdArgs); |
3520 | |
3521 | // Decide whether to use verbose asm. Verbose assembly is the default on |
3522 | // toolchains which have the integrated assembler on by default. |
3523 | bool IsIntegratedAssemblerDefault = |
3524 | getToolChain().IsIntegratedAssemblerDefault(); |
3525 | if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm, |
3526 | IsIntegratedAssemblerDefault) || |
3527 | Args.hasArg(options::OPT_dA)) |
3528 | CmdArgs.push_back("-masm-verbose"); |
3529 | |
3530 | if (!getToolChain().useIntegratedAs()) |
3531 | CmdArgs.push_back("-no-integrated-as"); |
3532 | |
3533 | if (Args.hasArg(options::OPT_fdebug_pass_structure)) { |
3534 | CmdArgs.push_back("-mdebug-pass"); |
3535 | CmdArgs.push_back("Structure"); |
3536 | } |
3537 | if (Args.hasArg(options::OPT_fdebug_pass_arguments)) { |
3538 | CmdArgs.push_back("-mdebug-pass"); |
3539 | CmdArgs.push_back("Arguments"); |
3540 | } |
3541 | |
3542 | // Enable -mconstructor-aliases except on darwin, where we have to work around |
3543 | // a linker bug (see <rdar://problem/7651567>), and CUDA device code, where |
3544 | // aliases aren't supported. |
3545 | if (!RawTriple.isOSDarwin() && !RawTriple.isNVPTX()) |
3546 | CmdArgs.push_back("-mconstructor-aliases"); |
3547 | |
3548 | // Darwin's kernel doesn't support guard variables; just die if we |
3549 | // try to use them. |
3550 | if (KernelOrKext && RawTriple.isOSDarwin()) |
3551 | CmdArgs.push_back("-fforbid-guard-variables"); |
3552 | |
3553 | if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields, |
3554 | false)) { |
3555 | CmdArgs.push_back("-mms-bitfields"); |
3556 | } |
3557 | |
3558 | if (Args.hasFlag(options::OPT_mpie_copy_relocations, |
3559 | options::OPT_mno_pie_copy_relocations, |
3560 | false)) { |
3561 | CmdArgs.push_back("-mpie-copy-relocations"); |
3562 | } |
3563 | |
3564 | if (Args.hasFlag(options::OPT_fno_plt, options::OPT_fplt, false)) { |
3565 | CmdArgs.push_back("-fno-plt"); |
3566 | } |
3567 | |
3568 | // -fhosted is default. |
3569 | // TODO: Audit uses of KernelOrKext and see where it'd be more appropriate to |
3570 | // use Freestanding. |
3571 | bool Freestanding = |
3572 | Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) || |
3573 | KernelOrKext; |
3574 | if (Freestanding) |
3575 | CmdArgs.push_back("-ffreestanding"); |
3576 | |
3577 | // This is a coarse approximation of what llvm-gcc actually does, both |
3578 | // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more |
3579 | // complicated ways. |
3580 | bool AsynchronousUnwindTables = |
3581 | Args.hasFlag(options::OPT_fasynchronous_unwind_tables, |
3582 | options::OPT_fno_asynchronous_unwind_tables, |
3583 | (getToolChain().IsUnwindTablesDefault(Args) || |
3584 | getToolChain().getSanitizerArgs().needsUnwindTables()) && |
3585 | !Freestanding); |
3586 | if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables, |
3587 | AsynchronousUnwindTables)) |
3588 | CmdArgs.push_back("-munwind-tables"); |
3589 | |
3590 | getToolChain().addClangTargetOptions(Args, CmdArgs, |
3591 | JA.getOffloadingDeviceKind()); |
3592 | |
3593 | if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) { |
3594 | CmdArgs.push_back("-mlimit-float-precision"); |
3595 | CmdArgs.push_back(A->getValue()); |
3596 | } |
3597 | |
3598 | // FIXME: Handle -mtune=. |
3599 | (void)Args.hasArg(options::OPT_mtune_EQ); |
3600 | |
3601 | if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) { |
3602 | CmdArgs.push_back("-mcode-model"); |
3603 | CmdArgs.push_back(A->getValue()); |
3604 | } |
3605 | |
3606 | // Add the target cpu |
3607 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); |
3608 | if (!CPU.empty()) { |
3609 | CmdArgs.push_back("-target-cpu"); |
3610 | CmdArgs.push_back(Args.MakeArgString(CPU)); |
3611 | } |
3612 | |
3613 | RenderTargetOptions(Triple, Args, KernelOrKext, CmdArgs); |
3614 | |
3615 | // These two are potentially updated by AddClangCLArgs. |
3616 | codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; |
3617 | bool EmitCodeView = false; |
3618 | |
3619 | // Add clang-cl arguments. |
3620 | types::ID InputType = Input.getType(); |
3621 | if (D.IsCLMode()) |
3622 | AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView); |
3623 | else |
3624 | EmitCodeView = Args.hasArg(options::OPT_gcodeview); |
3625 | |
3626 | const Arg *SplitDWARFArg = nullptr; |
3627 | RenderDebugOptions(getToolChain(), D, RawTriple, Args, EmitCodeView, |
3628 | IsWindowsMSVC, CmdArgs, DebugInfoKind, SplitDWARFArg); |
3629 | |
3630 | // Add the split debug info name to the command lines here so we |
3631 | // can propagate it to the backend. |
3632 | bool SplitDWARF = SplitDWARFArg && RawTriple.isOSLinux() && |
3633 | (isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA) || |
3634 | isa<BackendJobAction>(JA)); |
3635 | const char *SplitDWARFOut; |
3636 | if (SplitDWARF) { |
3637 | CmdArgs.push_back("-split-dwarf-file"); |
3638 | SplitDWARFOut = SplitDebugName(Args, Input); |
3639 | CmdArgs.push_back(SplitDWARFOut); |
3640 | } |
3641 | |
3642 | // Pass the linker version in use. |
3643 | if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { |
3644 | CmdArgs.push_back("-target-linker-version"); |
3645 | CmdArgs.push_back(A->getValue()); |
3646 | } |
3647 | |
3648 | if (!shouldUseLeafFramePointer(Args, RawTriple)) |
3649 | CmdArgs.push_back("-momit-leaf-frame-pointer"); |
3650 | |
3651 | // Explicitly error on some things we know we don't support and can't just |
3652 | // ignore. |
3653 | if (!Args.hasArg(options::OPT_fallow_unsupported)) { |
3654 | Arg *Unsupported; |
3655 | if (types::isCXX(InputType) && RawTriple.isOSDarwin() && |
3656 | getToolChain().getArch() == llvm::Triple::x86) { |
3657 | if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) || |
3658 | (Unsupported = Args.getLastArg(options::OPT_mkernel))) |
3659 | D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386) |
3660 | << Unsupported->getOption().getName(); |
3661 | } |
3662 | // The faltivec option has been superseded by the maltivec option. |
3663 | if ((Unsupported = Args.getLastArg(options::OPT_faltivec))) |
3664 | D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) |
3665 | << Unsupported->getOption().getName() |
3666 | << "please use -maltivec and include altivec.h explicitly"; |
3667 | if ((Unsupported = Args.getLastArg(options::OPT_fno_altivec))) |
3668 | D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) |
3669 | << Unsupported->getOption().getName() << "please use -mno-altivec"; |
3670 | } |
3671 | |
3672 | Args.AddAllArgs(CmdArgs, options::OPT_v); |
3673 | Args.AddLastArg(CmdArgs, options::OPT_H); |
3674 | if (D.CCPrintHeaders && !D.CCGenDiagnostics) { |
3675 | CmdArgs.push_back("-header-include-file"); |
3676 | CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename |
3677 | : "-"); |
3678 | } |
3679 | Args.AddLastArg(CmdArgs, options::OPT_P); |
3680 | Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout); |
3681 | |
3682 | if (D.CCLogDiagnostics && !D.CCGenDiagnostics) { |
3683 | CmdArgs.push_back("-diagnostic-log-file"); |
3684 | CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename |
3685 | : "-"); |
3686 | } |
3687 | |
3688 | bool UseSeparateSections = isUseSeparateSections(Triple); |
3689 | |
3690 | if (Args.hasFlag(options::OPT_ffunction_sections, |
3691 | options::OPT_fno_function_sections, UseSeparateSections)) { |
3692 | CmdArgs.push_back("-ffunction-sections"); |
3693 | } |
3694 | |
3695 | if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections, |
3696 | UseSeparateSections)) { |
3697 | CmdArgs.push_back("-fdata-sections"); |
3698 | } |
3699 | |
3700 | if (!Args.hasFlag(options::OPT_funique_section_names, |
3701 | options::OPT_fno_unique_section_names, true)) |
3702 | CmdArgs.push_back("-fno-unique-section-names"); |
3703 | |
3704 | if (auto *A = Args.getLastArg( |
3705 | options::OPT_finstrument_functions, |
3706 | options::OPT_finstrument_functions_after_inlining, |
3707 | options::OPT_finstrument_function_entry_bare)) |
3708 | A->render(Args, CmdArgs); |
3709 | |
3710 | // NVPTX doesn't support PGO or coverage. There's no runtime support for |
3711 | // sampling, overhead of call arc collection is way too high and there's no |
3712 | // way to collect the output. |
3713 | if (!Triple.isNVPTX()) |
3714 | addPGOAndCoverageFlags(C, D, Output, Args, CmdArgs); |
3715 | |
3716 | if (auto *ABICompatArg = Args.getLastArg(options::OPT_fclang_abi_compat_EQ)) |
3717 | ABICompatArg->render(Args, CmdArgs); |
3718 | |
3719 | // Add runtime flag for PS4 when PGO, coverage, or sanitizers are enabled. |
3720 | if (RawTriple.isPS4CPU()) { |
3721 | PS4cpu::addProfileRTArgs(getToolChain(), Args, CmdArgs); |
3722 | PS4cpu::addSanitizerArgs(getToolChain(), CmdArgs); |
3723 | } |
3724 | |
3725 | // Pass options for controlling the default header search paths. |
3726 | if (Args.hasArg(options::OPT_nostdinc)) { |
3727 | CmdArgs.push_back("-nostdsysteminc"); |
3728 | CmdArgs.push_back("-nobuiltininc"); |
3729 | } else { |
3730 | if (Args.hasArg(options::OPT_nostdlibinc)) |
3731 | CmdArgs.push_back("-nostdsysteminc"); |
3732 | Args.AddLastArg(CmdArgs, options::OPT_nostdincxx); |
3733 | Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc); |
3734 | } |
3735 | |
3736 | // Pass the path to compiler resource files. |
3737 | CmdArgs.push_back("-resource-dir"); |
3738 | CmdArgs.push_back(D.ResourceDir.c_str()); |
3739 | |
3740 | Args.AddLastArg(CmdArgs, options::OPT_working_directory); |
3741 | |
3742 | RenderARCMigrateToolOptions(D, Args, CmdArgs); |
3743 | |
3744 | // Add preprocessing options like -I, -D, etc. if we are using the |
3745 | // preprocessor. |
3746 | // |
3747 | // FIXME: Support -fpreprocessed |
3748 | if (types::getPreprocessedType(InputType) != types::TY_INVALID) |
3749 | AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs); |
3750 | |
3751 | // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes |
3752 | // that "The compiler can only warn and ignore the option if not recognized". |
3753 | // When building with ccache, it will pass -D options to clang even on |
3754 | // preprocessed inputs and configure concludes that -fPIC is not supported. |
3755 | Args.ClaimAllArgs(options::OPT_D); |
3756 | |
3757 | // Manually translate -O4 to -O3; let clang reject others. |
3758 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
3759 | if (A->getOption().matches(options::OPT_O4)) { |
3760 | CmdArgs.push_back("-O3"); |
3761 | D.Diag(diag::warn_O4_is_O3); |
3762 | } else { |
3763 | A->render(Args, CmdArgs); |
3764 | } |
3765 | } |
3766 | |
3767 | // Warn about ignored options to clang. |
3768 | for (const Arg *A : |
3769 | Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) { |
3770 | D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args); |
3771 | A->claim(); |
3772 | } |
3773 | |
3774 | for (const Arg *A : |
3775 | Args.filtered(options::OPT_clang_ignored_legacy_options_Group)) { |
3776 | D.Diag(diag::warn_ignored_clang_option) << A->getAsString(Args); |
3777 | A->claim(); |
3778 | } |
3779 | |
3780 | claimNoWarnArgs(Args); |
3781 | |
3782 | Args.AddAllArgs(CmdArgs, options::OPT_R_Group); |
3783 | |
3784 | Args.AddAllArgs(CmdArgs, options::OPT_W_Group); |
3785 | if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false)) |
3786 | CmdArgs.push_back("-pedantic"); |
3787 | Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors); |
3788 | Args.AddLastArg(CmdArgs, options::OPT_w); |
3789 | |
3790 | // Fixed point flags |
3791 | if (Args.hasFlag(options::OPT_ffixed_point, options::OPT_fno_fixed_point, |
3792 | /*Default=*/false)) |
3793 | Args.AddLastArg(CmdArgs, options::OPT_ffixed_point); |
3794 | |
3795 | // Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi} |
3796 | // (-ansi is equivalent to -std=c89 or -std=c++98). |
3797 | // |
3798 | // If a std is supplied, only add -trigraphs if it follows the |
3799 | // option. |
3800 | bool ImplyVCPPCXXVer = false; |
3801 | if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) { |
3802 | if (Std->getOption().matches(options::OPT_ansi)) |
3803 | if (types::isCXX(InputType)) |
3804 | CmdArgs.push_back("-std=c++98"); |
3805 | else |
3806 | CmdArgs.push_back("-std=c89"); |
3807 | else |
3808 | Std->render(Args, CmdArgs); |
3809 | |
3810 | // If -f(no-)trigraphs appears after the language standard flag, honor it. |
3811 | if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi, |
3812 | options::OPT_ftrigraphs, |
3813 | options::OPT_fno_trigraphs)) |
3814 | if (A != Std) |
3815 | A->render(Args, CmdArgs); |
3816 | } else { |
3817 | // Honor -std-default. |
3818 | // |
3819 | // FIXME: Clang doesn't correctly handle -std= when the input language |
3820 | // doesn't match. For the time being just ignore this for C++ inputs; |
3821 | // eventually we want to do all the standard defaulting here instead of |
3822 | // splitting it between the driver and clang -cc1. |
3823 | if (!types::isCXX(InputType)) |
3824 | Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=", |
3825 | /*Joined=*/true); |
3826 | else if (IsWindowsMSVC) |
3827 | ImplyVCPPCXXVer = true; |
3828 | |
3829 | Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs, |
3830 | options::OPT_fno_trigraphs); |
3831 | } |
3832 | |
3833 | // GCC's behavior for -Wwrite-strings is a bit strange: |
3834 | // * In C, this "warning flag" changes the types of string literals from |
3835 | // 'char[N]' to 'const char[N]', and thus triggers an unrelated warning |
3836 | // for the discarded qualifier. |
3837 | // * In C++, this is just a normal warning flag. |
3838 | // |
3839 | // Implementing this warning correctly in C is hard, so we follow GCC's |
3840 | // behavior for now. FIXME: Directly diagnose uses of a string literal as |
3841 | // a non-const char* in C, rather than using this crude hack. |
3842 | if (!types::isCXX(InputType)) { |
3843 | // FIXME: This should behave just like a warning flag, and thus should also |
3844 | // respect -Weverything, -Wno-everything, -Werror=write-strings, and so on. |
3845 | Arg *WriteStrings = |
3846 | Args.getLastArg(options::OPT_Wwrite_strings, |
3847 | options::OPT_Wno_write_strings, options::OPT_w); |
3848 | if (WriteStrings && |
3849 | WriteStrings->getOption().matches(options::OPT_Wwrite_strings)) |
3850 | CmdArgs.push_back("-fconst-strings"); |
3851 | } |
3852 | |
3853 | // GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active |
3854 | // during C++ compilation, which it is by default. GCC keeps this define even |
3855 | // in the presence of '-w', match this behavior bug-for-bug. |
3856 | if (types::isCXX(InputType) && |
3857 | Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated, |
3858 | true)) { |
3859 | CmdArgs.push_back("-fdeprecated-macro"); |
3860 | } |
3861 | |
3862 | // Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'. |
3863 | if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) { |
3864 | if (Asm->getOption().matches(options::OPT_fasm)) |
3865 | CmdArgs.push_back("-fgnu-keywords"); |
3866 | else |
3867 | CmdArgs.push_back("-fno-gnu-keywords"); |
3868 | } |
3869 | |
3870 | if (ShouldDisableDwarfDirectory(Args, getToolChain())) |
3871 | CmdArgs.push_back("-fno-dwarf-directory-asm"); |
3872 | |
3873 | if (ShouldDisableAutolink(Args, getToolChain())) |
3874 | CmdArgs.push_back("-fno-autolink"); |
3875 | |
3876 | // Add in -fdebug-compilation-dir if necessary. |
3877 | addDebugCompDirArg(Args, CmdArgs); |
3878 | |
3879 | addDebugPrefixMapArg(D, Args, CmdArgs); |
3880 | |
3881 | if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_, |
3882 | options::OPT_ftemplate_depth_EQ)) { |
3883 | CmdArgs.push_back("-ftemplate-depth"); |
3884 | CmdArgs.push_back(A->getValue()); |
3885 | } |
3886 | |
3887 | if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) { |
3888 | CmdArgs.push_back("-foperator-arrow-depth"); |
3889 | CmdArgs.push_back(A->getValue()); |
3890 | } |
3891 | |
3892 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) { |
3893 | CmdArgs.push_back("-fconstexpr-depth"); |
3894 | CmdArgs.push_back(A->getValue()); |
3895 | } |
3896 | |
3897 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) { |
3898 | CmdArgs.push_back("-fconstexpr-steps"); |
3899 | CmdArgs.push_back(A->getValue()); |
3900 | } |
3901 | |
3902 | if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) { |
3903 | CmdArgs.push_back("-fbracket-depth"); |
3904 | CmdArgs.push_back(A->getValue()); |
3905 | } |
3906 | |
3907 | if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ, |
3908 | options::OPT_Wlarge_by_value_copy_def)) { |
3909 | if (A->getNumValues()) { |
3910 | StringRef bytes = A->getValue(); |
3911 | CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes)); |
3912 | } else |
3913 | CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value |
3914 | } |
3915 | |
3916 | if (Args.hasArg(options::OPT_relocatable_pch)) |
3917 | CmdArgs.push_back("-relocatable-pch"); |
3918 | |
3919 | if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) { |
3920 | CmdArgs.push_back("-fconstant-string-class"); |
3921 | CmdArgs.push_back(A->getValue()); |
3922 | } |
3923 | |
3924 | if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) { |
3925 | CmdArgs.push_back("-ftabstop"); |
3926 | CmdArgs.push_back(A->getValue()); |
3927 | } |
3928 | |
3929 | if (Args.hasFlag(options::OPT_fstack_size_section, |
3930 | options::OPT_fno_stack_size_section, RawTriple.isPS4())) |
3931 | CmdArgs.push_back("-fstack-size-section"); |
3932 | |
3933 | CmdArgs.push_back("-ferror-limit"); |
3934 | if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ)) |
3935 | CmdArgs.push_back(A->getValue()); |
3936 | else |
3937 | CmdArgs.push_back("19"); |
3938 | |
3939 | if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) { |
3940 | CmdArgs.push_back("-fmacro-backtrace-limit"); |
3941 | CmdArgs.push_back(A->getValue()); |
3942 | } |
3943 | |
3944 | if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) { |
3945 | CmdArgs.push_back("-ftemplate-backtrace-limit"); |
3946 | CmdArgs.push_back(A->getValue()); |
3947 | } |
3948 | |
3949 | if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) { |
3950 | CmdArgs.push_back("-fconstexpr-backtrace-limit"); |
3951 | CmdArgs.push_back(A->getValue()); |
3952 | } |
3953 | |
3954 | if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) { |
3955 | CmdArgs.push_back("-fspell-checking-limit"); |
3956 | CmdArgs.push_back(A->getValue()); |
3957 | } |
3958 | |
3959 | // Pass -fmessage-length=. |
3960 | CmdArgs.push_back("-fmessage-length"); |
3961 | if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) { |
3962 | CmdArgs.push_back(A->getValue()); |
3963 | } else { |
3964 | // If -fmessage-length=N was not specified, determine whether this is a |
3965 | // terminal and, if so, implicitly define -fmessage-length appropriately. |
3966 | unsigned N = llvm::sys::Process::StandardErrColumns(); |
3967 | CmdArgs.push_back(Args.MakeArgString(Twine(N))); |
3968 | } |
3969 | |
3970 | // -fvisibility= and -fvisibility-ms-compat are of a piece. |
3971 | if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ, |
3972 | options::OPT_fvisibility_ms_compat)) { |
3973 | if (A->getOption().matches(options::OPT_fvisibility_EQ)) { |
3974 | CmdArgs.push_back("-fvisibility"); |
3975 | CmdArgs.push_back(A->getValue()); |
3976 | } else { |
3977 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 3977, __extension__ __PRETTY_FUNCTION__)); |
3978 | CmdArgs.push_back("-fvisibility"); |
3979 | CmdArgs.push_back("hidden"); |
3980 | CmdArgs.push_back("-ftype-visibility"); |
3981 | CmdArgs.push_back("default"); |
3982 | } |
3983 | } |
3984 | |
3985 | Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden); |
3986 | |
3987 | Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ); |
3988 | |
3989 | // Forward -f (flag) options which we can pass directly. |
3990 | Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls); |
3991 | Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions); |
3992 | Args.AddLastArg(CmdArgs, options::OPT_fdigraphs, options::OPT_fno_digraphs); |
3993 | Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names); |
3994 | Args.AddLastArg(CmdArgs, options::OPT_femulated_tls, |
3995 | options::OPT_fno_emulated_tls); |
3996 | |
3997 | // AltiVec-like language extensions aren't relevant for assembling. |
3998 | if (!isa<PreprocessJobAction>(JA) || Output.getType() != types::TY_PP_Asm) |
3999 | Args.AddLastArg(CmdArgs, options::OPT_fzvector); |
4000 | |
4001 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree); |
4002 | Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type); |
4003 | |
4004 | // Forward flags for OpenMP. We don't do this if the current action is an |
4005 | // device offloading action other than OpenMP. |
4006 | if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, |
4007 | options::OPT_fno_openmp, false) && |
4008 | (JA.isDeviceOffloading(Action::OFK_None) || |
4009 | JA.isDeviceOffloading(Action::OFK_OpenMP))) { |
4010 | switch (D.getOpenMPRuntime(Args)) { |
4011 | case Driver::OMPRT_OMP: |
4012 | case Driver::OMPRT_IOMP5: |
4013 | // Clang can generate useful OpenMP code for these two runtime libraries. |
4014 | CmdArgs.push_back("-fopenmp"); |
4015 | |
4016 | // If no option regarding the use of TLS in OpenMP codegeneration is |
4017 | // given, decide a default based on the target. Otherwise rely on the |
4018 | // options and pass the right information to the frontend. |
4019 | if (!Args.hasFlag(options::OPT_fopenmp_use_tls, |
4020 | options::OPT_fnoopenmp_use_tls, /*Default=*/true)) |
4021 | CmdArgs.push_back("-fnoopenmp-use-tls"); |
4022 | Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd, |
4023 | options::OPT_fno_openmp_simd); |
4024 | Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); |
4025 | |
4026 | // When in OpenMP offloading mode with NVPTX target, forward |
4027 | // cuda-mode flag |
4028 | Args.AddLastArg(CmdArgs, options::OPT_fopenmp_cuda_mode, |
4029 | options::OPT_fno_openmp_cuda_mode); |
4030 | break; |
4031 | default: |
4032 | // By default, if Clang doesn't know how to generate useful OpenMP code |
4033 | // for a specific runtime library, we just don't pass the '-fopenmp' flag |
4034 | // down to the actual compilation. |
4035 | // FIXME: It would be better to have a mode which *only* omits IR |
4036 | // generation based on the OpenMP support so that we get consistent |
4037 | // semantic analysis, etc. |
4038 | break; |
4039 | } |
4040 | } else { |
4041 | Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd, |
4042 | options::OPT_fno_openmp_simd); |
4043 | Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); |
4044 | } |
4045 | |
4046 | const SanitizerArgs &Sanitize = getToolChain().getSanitizerArgs(); |
4047 | Sanitize.addArgs(getToolChain(), Args, CmdArgs, InputType); |
4048 | |
4049 | const XRayArgs &XRay = getToolChain().getXRayArgs(); |
4050 | XRay.addArgs(getToolChain(), Args, CmdArgs, InputType); |
4051 | |
4052 | if (getToolChain().SupportsProfiling()) |
4053 | Args.AddLastArg(CmdArgs, options::OPT_pg); |
4054 | |
4055 | if (getToolChain().SupportsProfiling()) |
4056 | Args.AddLastArg(CmdArgs, options::OPT_mfentry); |
4057 | |
4058 | // -flax-vector-conversions is default. |
4059 | if (!Args.hasFlag(options::OPT_flax_vector_conversions, |
4060 | options::OPT_fno_lax_vector_conversions)) |
4061 | CmdArgs.push_back("-fno-lax-vector-conversions"); |
4062 | |
4063 | if (Args.getLastArg(options::OPT_fapple_kext) || |
4064 | (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType))) |
4065 | CmdArgs.push_back("-fapple-kext"); |
4066 | |
4067 | Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch); |
4068 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info); |
4069 | Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits); |
4070 | Args.AddLastArg(CmdArgs, options::OPT_ftime_report); |
4071 | Args.AddLastArg(CmdArgs, options::OPT_ftrapv); |
4072 | |
4073 | if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) { |
4074 | CmdArgs.push_back("-ftrapv-handler"); |
4075 | CmdArgs.push_back(A->getValue()); |
4076 | } |
4077 | |
4078 | Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ); |
4079 | |
4080 | // -fno-strict-overflow implies -fwrapv if it isn't disabled, but |
4081 | // -fstrict-overflow won't turn off an explicitly enabled -fwrapv. |
4082 | if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) { |
4083 | if (A->getOption().matches(options::OPT_fwrapv)) |
4084 | CmdArgs.push_back("-fwrapv"); |
4085 | } else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow, |
4086 | options::OPT_fno_strict_overflow)) { |
4087 | if (A->getOption().matches(options::OPT_fno_strict_overflow)) |
4088 | CmdArgs.push_back("-fwrapv"); |
4089 | } |
4090 | |
4091 | if (Arg *A = Args.getLastArg(options::OPT_freroll_loops, |
4092 | options::OPT_fno_reroll_loops)) |
4093 | if (A->getOption().matches(options::OPT_freroll_loops)) |
4094 | CmdArgs.push_back("-freroll-loops"); |
4095 | |
4096 | Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings); |
4097 | Args.AddLastArg(CmdArgs, options::OPT_funroll_loops, |
4098 | options::OPT_fno_unroll_loops); |
4099 | |
4100 | Args.AddLastArg(CmdArgs, options::OPT_pthread); |
4101 | |
4102 | RenderSSPOptions(getToolChain(), Args, CmdArgs, KernelOrKext); |
4103 | |
4104 | // Translate -mstackrealign |
4105 | if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign, |
4106 | false)) |
4107 | CmdArgs.push_back(Args.MakeArgString("-mstackrealign")); |
4108 | |
4109 | if (Args.hasArg(options::OPT_mstack_alignment)) { |
4110 | StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment); |
4111 | CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment)); |
4112 | } |
4113 | |
4114 | if (Args.hasArg(options::OPT_mstack_probe_size)) { |
4115 | StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size); |
4116 | |
4117 | if (!Size.empty()) |
4118 | CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size)); |
4119 | else |
4120 | CmdArgs.push_back("-mstack-probe-size=0"); |
4121 | } |
4122 | |
4123 | if (!Args.hasFlag(options::OPT_mstack_arg_probe, |
4124 | options::OPT_mno_stack_arg_probe, true)) |
4125 | CmdArgs.push_back(Args.MakeArgString("-mno-stack-arg-probe")); |
4126 | |
4127 | if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it, |
4128 | options::OPT_mno_restrict_it)) { |
4129 | if (A->getOption().matches(options::OPT_mrestrict_it)) { |
4130 | CmdArgs.push_back("-mllvm"); |
4131 | CmdArgs.push_back("-arm-restrict-it"); |
4132 | } else { |
4133 | CmdArgs.push_back("-mllvm"); |
4134 | CmdArgs.push_back("-arm-no-restrict-it"); |
4135 | } |
4136 | } else if (Triple.isOSWindows() && |
4137 | (Triple.getArch() == llvm::Triple::arm || |
4138 | Triple.getArch() == llvm::Triple::thumb)) { |
4139 | // Windows on ARM expects restricted IT blocks |
4140 | CmdArgs.push_back("-mllvm"); |
4141 | CmdArgs.push_back("-arm-restrict-it"); |
4142 | } |
4143 | |
4144 | // Forward -cl options to -cc1 |
4145 | RenderOpenCLOptions(Args, CmdArgs); |
4146 | |
4147 | if (Arg *A = Args.getLastArg(options::OPT_fcf_protection_EQ)) { |
4148 | CmdArgs.push_back( |
4149 | Args.MakeArgString(Twine("-fcf-protection=") + A->getValue())); |
4150 | } |
4151 | |
4152 | // Forward -f options with positive and negative forms; we translate |
4153 | // these by hand. |
4154 | if (Arg *A = getLastProfileSampleUseArg(Args)) { |
4155 | StringRef fname = A->getValue(); |
4156 | if (!llvm::sys::fs::exists(fname)) |
4157 | D.Diag(diag::err_drv_no_such_file) << fname; |
4158 | else |
4159 | A->render(Args, CmdArgs); |
4160 | } |
4161 | |
4162 | RenderBuiltinOptions(getToolChain(), RawTriple, Args, CmdArgs); |
4163 | |
4164 | if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, |
4165 | options::OPT_fno_assume_sane_operator_new)) |
4166 | CmdArgs.push_back("-fno-assume-sane-operator-new"); |
4167 | |
4168 | // -fblocks=0 is default. |
4169 | if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks, |
4170 | getToolChain().IsBlocksDefault()) || |
4171 | (Args.hasArg(options::OPT_fgnu_runtime) && |
4172 | Args.hasArg(options::OPT_fobjc_nonfragile_abi) && |
4173 | !Args.hasArg(options::OPT_fno_blocks))) { |
4174 | CmdArgs.push_back("-fblocks"); |
4175 | |
4176 | if (!Args.hasArg(options::OPT_fgnu_runtime) && |
4177 | !getToolChain().hasBlocksRuntime()) |
4178 | CmdArgs.push_back("-fblocks-runtime-optional"); |
4179 | } |
4180 | |
4181 | // -fencode-extended-block-signature=1 is default. |
4182 | if (getToolChain().IsEncodeExtendedBlockSignatureDefault()) |
4183 | CmdArgs.push_back("-fencode-extended-block-signature"); |
4184 | |
4185 | if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts, |
4186 | false) && |
4187 | types::isCXX(InputType)) { |
4188 | CmdArgs.push_back("-fcoroutines-ts"); |
4189 | } |
4190 | |
4191 | Args.AddLastArg(CmdArgs, options::OPT_fdouble_square_bracket_attributes, |
4192 | options::OPT_fno_double_square_bracket_attributes); |
4193 | |
4194 | bool HaveModules = false; |
4195 | RenderModulesOptions(C, D, Args, Input, Output, CmdArgs, HaveModules); |
4196 | |
4197 | // -faccess-control is default. |
4198 | if (Args.hasFlag(options::OPT_fno_access_control, |
4199 | options::OPT_faccess_control, false)) |
4200 | CmdArgs.push_back("-fno-access-control"); |
4201 | |
4202 | // -felide-constructors is the default. |
4203 | if (Args.hasFlag(options::OPT_fno_elide_constructors, |
4204 | options::OPT_felide_constructors, false)) |
4205 | CmdArgs.push_back("-fno-elide-constructors"); |
4206 | |
4207 | ToolChain::RTTIMode RTTIMode = getToolChain().getRTTIMode(); |
4208 | |
4209 | if (KernelOrKext || (types::isCXX(InputType) && |
4210 | (RTTIMode == ToolChain::RM_Disabled))) |
4211 | CmdArgs.push_back("-fno-rtti"); |
4212 | |
4213 | // -fshort-enums=0 is default for all architectures except Hexagon. |
4214 | if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums, |
4215 | getToolChain().getArch() == llvm::Triple::hexagon)) |
4216 | CmdArgs.push_back("-fshort-enums"); |
4217 | |
4218 | RenderCharacterOptions(Args, AuxTriple ? *AuxTriple : RawTriple, CmdArgs); |
4219 | |
4220 | // -fuse-cxa-atexit is default. |
4221 | if (!Args.hasFlag( |
4222 | options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit, |
4223 | !RawTriple.isOSWindows() && |
4224 | RawTriple.getOS() != llvm::Triple::Solaris && |
4225 | getToolChain().getArch() != llvm::Triple::hexagon && |
4226 | getToolChain().getArch() != llvm::Triple::xcore && |
4227 | ((RawTriple.getVendor() != llvm::Triple::MipsTechnologies) || |
4228 | RawTriple.hasEnvironment())) || |
4229 | KernelOrKext) |
4230 | CmdArgs.push_back("-fno-use-cxa-atexit"); |
4231 | |
4232 | if (Args.hasFlag(options::OPT_fregister_global_dtors_with_atexit, |
4233 | options::OPT_fno_register_global_dtors_with_atexit, |
4234 | RawTriple.isOSDarwin() && !KernelOrKext)) |
4235 | CmdArgs.push_back("-fregister-global-dtors-with-atexit"); |
4236 | |
4237 | // -fms-extensions=0 is default. |
4238 | if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions, |
4239 | IsWindowsMSVC)) |
4240 | CmdArgs.push_back("-fms-extensions"); |
4241 | |
4242 | // -fno-use-line-directives is default. |
4243 | if (Args.hasFlag(options::OPT_fuse_line_directives, |
4244 | options::OPT_fno_use_line_directives, false)) |
4245 | CmdArgs.push_back("-fuse-line-directives"); |
4246 | |
4247 | // -fms-compatibility=0 is default. |
4248 | if (Args.hasFlag(options::OPT_fms_compatibility, |
4249 | options::OPT_fno_ms_compatibility, |
4250 | (IsWindowsMSVC && |
4251 | Args.hasFlag(options::OPT_fms_extensions, |
4252 | options::OPT_fno_ms_extensions, true)))) |
4253 | CmdArgs.push_back("-fms-compatibility"); |
4254 | |
4255 | VersionTuple MSVT = getToolChain().computeMSVCVersion(&D, Args); |
4256 | if (!MSVT.empty()) |
4257 | CmdArgs.push_back( |
4258 | Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString())); |
4259 | |
4260 | bool IsMSVC2015Compatible = MSVT.getMajor() >= 19; |
4261 | if (ImplyVCPPCXXVer) { |
4262 | StringRef LanguageStandard; |
4263 | if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) { |
4264 | LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue()) |
4265 | .Case("c++14", "-std=c++14") |
4266 | .Case("c++17", "-std=c++17") |
4267 | .Case("c++latest", "-std=c++2a") |
4268 | .Default(""); |
4269 | if (LanguageStandard.empty()) |
4270 | D.Diag(clang::diag::warn_drv_unused_argument) |
4271 | << StdArg->getAsString(Args); |
4272 | } |
4273 | |
4274 | if (LanguageStandard.empty()) { |
4275 | if (IsMSVC2015Compatible) |
4276 | LanguageStandard = "-std=c++14"; |
4277 | else |
4278 | LanguageStandard = "-std=c++11"; |
4279 | } |
4280 | |
4281 | CmdArgs.push_back(LanguageStandard.data()); |
4282 | } |
4283 | |
4284 | // -fno-borland-extensions is default. |
4285 | if (Args.hasFlag(options::OPT_fborland_extensions, |
4286 | options::OPT_fno_borland_extensions, false)) |
4287 | CmdArgs.push_back("-fborland-extensions"); |
4288 | |
4289 | // -fno-declspec is default, except for PS4. |
4290 | if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec, |
4291 | RawTriple.isPS4())) |
4292 | CmdArgs.push_back("-fdeclspec"); |
4293 | else if (Args.hasArg(options::OPT_fno_declspec)) |
4294 | CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec. |
4295 | |
4296 | // -fthreadsafe-static is default, except for MSVC compatibility versions less |
4297 | // than 19. |
4298 | if (!Args.hasFlag(options::OPT_fthreadsafe_statics, |
4299 | options::OPT_fno_threadsafe_statics, |
4300 | !IsWindowsMSVC || IsMSVC2015Compatible)) |
4301 | CmdArgs.push_back("-fno-threadsafe-statics"); |
4302 | |
4303 | // -fno-delayed-template-parsing is default, except when targeting MSVC. |
4304 | // Many old Windows SDK versions require this to parse. |
4305 | // FIXME: MSVC introduced /Zc:twoPhase- to disable this behavior in their |
4306 | // compiler. We should be able to disable this by default at some point. |
4307 | if (Args.hasFlag(options::OPT_fdelayed_template_parsing, |
4308 | options::OPT_fno_delayed_template_parsing, IsWindowsMSVC)) |
4309 | CmdArgs.push_back("-fdelayed-template-parsing"); |
4310 | |
4311 | // -fgnu-keywords default varies depending on language; only pass if |
4312 | // specified. |
4313 | if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords, |
4314 | options::OPT_fno_gnu_keywords)) |
4315 | A->render(Args, CmdArgs); |
4316 | |
4317 | if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline, |
4318 | false)) |
4319 | CmdArgs.push_back("-fgnu89-inline"); |
4320 | |
4321 | if (Args.hasArg(options::OPT_fno_inline)) |
4322 | CmdArgs.push_back("-fno-inline"); |
4323 | |
4324 | if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, |
4325 | options::OPT_finline_hint_functions, |
4326 | options::OPT_fno_inline_functions)) |
4327 | InlineArg->render(Args, CmdArgs); |
4328 | |
4329 | Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager, |
4330 | options::OPT_fno_experimental_new_pass_manager); |
4331 | |
4332 | ObjCRuntime Runtime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind); |
4333 | RenderObjCOptions(getToolChain(), D, RawTriple, Args, Runtime, |
4334 | rewriteKind != RK_None, Input, CmdArgs); |
4335 | |
4336 | if (Args.hasFlag(options::OPT_fapplication_extension, |
4337 | options::OPT_fno_application_extension, false)) |
4338 | CmdArgs.push_back("-fapplication-extension"); |
4339 | |
4340 | // Handle GCC-style exception args. |
4341 | if (!C.getDriver().IsCLMode()) |
4342 | addExceptionArgs(Args, InputType, getToolChain(), KernelOrKext, Runtime, |
4343 | CmdArgs); |
4344 | |
4345 | // Handle exception personalities |
4346 | Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, |
4347 | options::OPT_fseh_exceptions, |
4348 | options::OPT_fdwarf_exceptions); |
4349 | if (A) { |
4350 | const Option &Opt = A->getOption(); |
4351 | if (Opt.matches(options::OPT_fsjlj_exceptions)) |
4352 | CmdArgs.push_back("-fsjlj-exceptions"); |
4353 | if (Opt.matches(options::OPT_fseh_exceptions)) |
4354 | CmdArgs.push_back("-fseh-exceptions"); |
4355 | if (Opt.matches(options::OPT_fdwarf_exceptions)) |
4356 | CmdArgs.push_back("-fdwarf-exceptions"); |
4357 | } else { |
4358 | switch (getToolChain().GetExceptionModel(Args)) { |
4359 | default: |
4360 | break; |
4361 | case llvm::ExceptionHandling::DwarfCFI: |
4362 | CmdArgs.push_back("-fdwarf-exceptions"); |
4363 | break; |
4364 | case llvm::ExceptionHandling::SjLj: |
4365 | CmdArgs.push_back("-fsjlj-exceptions"); |
4366 | break; |
4367 | case llvm::ExceptionHandling::WinEH: |
4368 | CmdArgs.push_back("-fseh-exceptions"); |
4369 | break; |
4370 | } |
4371 | } |
4372 | |
4373 | // C++ "sane" operator new. |
4374 | if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, |
4375 | options::OPT_fno_assume_sane_operator_new)) |
4376 | CmdArgs.push_back("-fno-assume-sane-operator-new"); |
4377 | |
4378 | // -frelaxed-template-template-args is off by default, as it is a severe |
4379 | // breaking change until a corresponding change to template partial ordering |
4380 | // is provided. |
4381 | if (Args.hasFlag(options::OPT_frelaxed_template_template_args, |
4382 | options::OPT_fno_relaxed_template_template_args, false)) |
4383 | CmdArgs.push_back("-frelaxed-template-template-args"); |
4384 | |
4385 | // -fsized-deallocation is off by default, as it is an ABI-breaking change for |
4386 | // most platforms. |
4387 | if (Args.hasFlag(options::OPT_fsized_deallocation, |
4388 | options::OPT_fno_sized_deallocation, false)) |
4389 | CmdArgs.push_back("-fsized-deallocation"); |
4390 | |
4391 | // -faligned-allocation is on by default in C++17 onwards and otherwise off |
4392 | // by default. |
4393 | if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation, |
4394 | options::OPT_fno_aligned_allocation, |
4395 | options::OPT_faligned_new_EQ)) { |
4396 | if (A->getOption().matches(options::OPT_fno_aligned_allocation)) |
4397 | CmdArgs.push_back("-fno-aligned-allocation"); |
4398 | else |
4399 | CmdArgs.push_back("-faligned-allocation"); |
4400 | } |
4401 | |
4402 | // The default new alignment can be specified using a dedicated option or via |
4403 | // a GCC-compatible option that also turns on aligned allocation. |
4404 | if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ, |
4405 | options::OPT_faligned_new_EQ)) |
4406 | CmdArgs.push_back( |
4407 | Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue())); |
4408 | |
4409 | // -fconstant-cfstrings is default, and may be subject to argument translation |
4410 | // on Darwin. |
4411 | if (!Args.hasFlag(options::OPT_fconstant_cfstrings, |
4412 | options::OPT_fno_constant_cfstrings) || |
4413 | !Args.hasFlag(options::OPT_mconstant_cfstrings, |
4414 | options::OPT_mno_constant_cfstrings)) |
4415 | CmdArgs.push_back("-fno-constant-cfstrings"); |
4416 | |
4417 | // -fno-pascal-strings is default, only pass non-default. |
4418 | if (Args.hasFlag(options::OPT_fpascal_strings, |
4419 | options::OPT_fno_pascal_strings, false)) |
4420 | CmdArgs.push_back("-fpascal-strings"); |
4421 | |
4422 | // Honor -fpack-struct= and -fpack-struct, if given. Note that |
4423 | // -fno-pack-struct doesn't apply to -fpack-struct=. |
4424 | if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) { |
4425 | std::string PackStructStr = "-fpack-struct="; |
4426 | PackStructStr += A->getValue(); |
4427 | CmdArgs.push_back(Args.MakeArgString(PackStructStr)); |
4428 | } else if (Args.hasFlag(options::OPT_fpack_struct, |
4429 | options::OPT_fno_pack_struct, false)) { |
4430 | CmdArgs.push_back("-fpack-struct=1"); |
4431 | } |
4432 | |
4433 | // Handle -fmax-type-align=N and -fno-type-align |
4434 | bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align); |
4435 | if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) { |
4436 | if (!SkipMaxTypeAlign) { |
4437 | std::string MaxTypeAlignStr = "-fmax-type-align="; |
4438 | MaxTypeAlignStr += A->getValue(); |
4439 | CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); |
4440 | } |
4441 | } else if (RawTriple.isOSDarwin()) { |
4442 | if (!SkipMaxTypeAlign) { |
4443 | std::string MaxTypeAlignStr = "-fmax-type-align=16"; |
4444 | CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); |
4445 | } |
4446 | } |
4447 | |
4448 | if (!Args.hasFlag(options::OPT_Qy, options::OPT_Qn, true)) |
4449 | CmdArgs.push_back("-Qn"); |
4450 | |
4451 | // -fcommon is the default unless compiling kernel code or the target says so |
4452 | bool NoCommonDefault = KernelOrKext || isNoCommonDefault(RawTriple); |
4453 | if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common, |
4454 | !NoCommonDefault)) |
4455 | CmdArgs.push_back("-fno-common"); |
4456 | |
4457 | // -fsigned-bitfields is default, and clang doesn't yet support |
4458 | // -funsigned-bitfields. |
4459 | if (!Args.hasFlag(options::OPT_fsigned_bitfields, |
4460 | options::OPT_funsigned_bitfields)) |
4461 | D.Diag(diag::warn_drv_clang_unsupported) |
4462 | << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args); |
4463 | |
4464 | // -fsigned-bitfields is default, and clang doesn't support -fno-for-scope. |
4465 | if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope)) |
4466 | D.Diag(diag::err_drv_clang_unsupported) |
4467 | << Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args); |
4468 | |
4469 | // -finput_charset=UTF-8 is default. Reject others |
4470 | if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) { |
4471 | StringRef value = inputCharset->getValue(); |
4472 | if (!value.equals_lower("utf-8")) |
4473 | D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args) |
4474 | << value; |
4475 | } |
4476 | |
4477 | // -fexec_charset=UTF-8 is default. Reject others |
4478 | if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) { |
4479 | StringRef value = execCharset->getValue(); |
4480 | if (!value.equals_lower("utf-8")) |
4481 | D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args) |
4482 | << value; |
4483 | } |
4484 | |
4485 | RenderDiagnosticsOptions(D, Args, CmdArgs); |
4486 | |
4487 | // -fno-asm-blocks is default. |
4488 | if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks, |
4489 | false)) |
4490 | CmdArgs.push_back("-fasm-blocks"); |
4491 | |
4492 | // -fgnu-inline-asm is default. |
4493 | if (!Args.hasFlag(options::OPT_fgnu_inline_asm, |
4494 | options::OPT_fno_gnu_inline_asm, true)) |
4495 | CmdArgs.push_back("-fno-gnu-inline-asm"); |
4496 | |
4497 | // Enable vectorization per default according to the optimization level |
4498 | // selected. For optimization levels that want vectorization we use the alias |
4499 | // option to simplify the hasFlag logic. |
4500 | bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false); |
4501 | OptSpecifier VectorizeAliasOption = |
4502 | EnableVec ? options::OPT_O_Group : options::OPT_fvectorize; |
4503 | if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption, |
4504 | options::OPT_fno_vectorize, EnableVec)) |
4505 | CmdArgs.push_back("-vectorize-loops"); |
4506 | |
4507 | // -fslp-vectorize is enabled based on the optimization level selected. |
4508 | bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true); |
4509 | OptSpecifier SLPVectAliasOption = |
4510 | EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize; |
4511 | if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption, |
4512 | options::OPT_fno_slp_vectorize, EnableSLPVec)) |
4513 | CmdArgs.push_back("-vectorize-slp"); |
4514 | |
4515 | ParseMPreferVectorWidth(D, Args, CmdArgs); |
4516 | |
4517 | if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ)) |
4518 | A->render(Args, CmdArgs); |
4519 | |
4520 | if (Arg *A = Args.getLastArg( |
4521 | options::OPT_fsanitize_undefined_strip_path_components_EQ)) |
4522 | A->render(Args, CmdArgs); |
4523 | |
4524 | // -fdollars-in-identifiers default varies depending on platform and |
4525 | // language; only pass if specified. |
4526 | if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers, |
4527 | options::OPT_fno_dollars_in_identifiers)) { |
4528 | if (A->getOption().matches(options::OPT_fdollars_in_identifiers)) |
4529 | CmdArgs.push_back("-fdollars-in-identifiers"); |
4530 | else |
4531 | CmdArgs.push_back("-fno-dollars-in-identifiers"); |
4532 | } |
4533 | |
4534 | // -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for |
4535 | // practical purposes. |
4536 | if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time, |
4537 | options::OPT_fno_unit_at_a_time)) { |
4538 | if (A->getOption().matches(options::OPT_fno_unit_at_a_time)) |
4539 | D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args); |
4540 | } |
4541 | |
4542 | if (Args.hasFlag(options::OPT_fapple_pragma_pack, |
4543 | options::OPT_fno_apple_pragma_pack, false)) |
4544 | CmdArgs.push_back("-fapple-pragma-pack"); |
4545 | |
4546 | if (Args.hasFlag(options::OPT_fsave_optimization_record, |
4547 | options::OPT_foptimization_record_file_EQ, |
4548 | options::OPT_fno_save_optimization_record, false)) { |
4549 | CmdArgs.push_back("-opt-record-file"); |
4550 | |
4551 | const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ); |
4552 | if (A) { |
4553 | CmdArgs.push_back(A->getValue()); |
4554 | } else { |
4555 | SmallString<128> F; |
4556 | |
4557 | if (Args.hasArg(options::OPT_c) || Args.hasArg(options::OPT_S)) { |
4558 | if (Arg *FinalOutput = Args.getLastArg(options::OPT_o)) |
4559 | F = FinalOutput->getValue(); |
4560 | } |
4561 | |
4562 | if (F.empty()) { |
4563 | // Use the input filename. |
4564 | F = llvm::sys::path::stem(Input.getBaseInput()); |
4565 | |
4566 | // If we're compiling for an offload architecture (i.e. a CUDA device), |
4567 | // we need to make the file name for the device compilation different |
4568 | // from the host compilation. |
4569 | if (!JA.isDeviceOffloading(Action::OFK_None) && |
4570 | !JA.isDeviceOffloading(Action::OFK_Host)) { |
4571 | llvm::sys::path::replace_extension(F, ""); |
4572 | F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(), |
4573 | Triple.normalize()); |
4574 | F += "-"; |
4575 | F += JA.getOffloadingArch(); |
4576 | } |
4577 | } |
4578 | |
4579 | llvm::sys::path::replace_extension(F, "opt.yaml"); |
4580 | CmdArgs.push_back(Args.MakeArgString(F)); |
4581 | } |
4582 | } |
4583 | |
4584 | bool RewriteImports = Args.hasFlag(options::OPT_frewrite_imports, |
4585 | options::OPT_fno_rewrite_imports, false); |
4586 | if (RewriteImports) |
4587 | CmdArgs.push_back("-frewrite-imports"); |
4588 | |
4589 | // Enable rewrite includes if the user's asked for it or if we're generating |
4590 | // diagnostics. |
4591 | // TODO: Once -module-dependency-dir works with -frewrite-includes it'd be |
4592 | // nice to enable this when doing a crashdump for modules as well. |
4593 | if (Args.hasFlag(options::OPT_frewrite_includes, |
4594 | options::OPT_fno_rewrite_includes, false) || |
4595 | (C.isForDiagnostics() && (RewriteImports || !HaveModules))) |
4596 | CmdArgs.push_back("-frewrite-includes"); |
4597 | |
4598 | // Only allow -traditional or -traditional-cpp outside in preprocessing modes. |
4599 | if (Arg *A = Args.getLastArg(options::OPT_traditional, |
4600 | options::OPT_traditional_cpp)) { |
4601 | if (isa<PreprocessJobAction>(JA)) |
4602 | CmdArgs.push_back("-traditional-cpp"); |
4603 | else |
4604 | D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); |
4605 | } |
4606 | |
4607 | Args.AddLastArg(CmdArgs, options::OPT_dM); |
4608 | Args.AddLastArg(CmdArgs, options::OPT_dD); |
4609 | |
4610 | // Handle serialized diagnostics. |
4611 | if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) { |
4612 | CmdArgs.push_back("-serialize-diagnostic-file"); |
4613 | CmdArgs.push_back(Args.MakeArgString(A->getValue())); |
4614 | } |
4615 | |
4616 | if (Args.hasArg(options::OPT_fretain_comments_from_system_headers)) |
4617 | CmdArgs.push_back("-fretain-comments-from-system-headers"); |
4618 | |
4619 | // Forward -fcomment-block-commands to -cc1. |
4620 | Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands); |
4621 | // Forward -fparse-all-comments to -cc1. |
4622 | Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments); |
4623 | |
4624 | // Turn -fplugin=name.so into -load name.so |
4625 | for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) { |
4626 | CmdArgs.push_back("-load"); |
4627 | CmdArgs.push_back(A->getValue()); |
4628 | A->claim(); |
4629 | } |
4630 | |
4631 | // Setup statistics file output. |
4632 | SmallString<128> StatsFile = getStatsFileName(Args, Output, Input, D); |
4633 | if (!StatsFile.empty()) |
4634 | CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + StatsFile)); |
4635 | |
4636 | // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option |
4637 | // parser. |
4638 | // -finclude-default-header flag is for preprocessor, |
4639 | // do not pass it to other cc1 commands when save-temps is enabled |
4640 | if (C.getDriver().isSaveTempsEnabled() && |
4641 | !isa<PreprocessJobAction>(JA)) { |
4642 | for (auto Arg : Args.filtered(options::OPT_Xclang)) { |
4643 | Arg->claim(); |
4644 | if (StringRef(Arg->getValue()) != "-finclude-default-header") |
4645 | CmdArgs.push_back(Arg->getValue()); |
4646 | } |
4647 | } |
4648 | else { |
4649 | Args.AddAllArgValues(CmdArgs, options::OPT_Xclang); |
4650 | } |
4651 | for (const Arg *A : Args.filtered(options::OPT_mllvm)) { |
4652 | A->claim(); |
4653 | |
4654 | // We translate this by hand to the -cc1 argument, since nightly test uses |
4655 | // it and developers have been trained to spell it with -mllvm. Both |
4656 | // spellings are now deprecated and should be removed. |
4657 | if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") { |
4658 | CmdArgs.push_back("-disable-llvm-optzns"); |
4659 | } else { |
4660 | A->render(Args, CmdArgs); |
4661 | } |
4662 | } |
4663 | |
4664 | // With -save-temps, we want to save the unoptimized bitcode output from the |
4665 | // CompileJobAction, use -disable-llvm-passes to get pristine IR generated |
4666 | // by the frontend. |
4667 | // When -fembed-bitcode is enabled, optimized bitcode is emitted because it |
4668 | // has slightly different breakdown between stages. |
4669 | // FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of |
4670 | // pristine IR generated by the frontend. Ideally, a new compile action should |
4671 | // be added so both IR can be captured. |
4672 | if (C.getDriver().isSaveTempsEnabled() && |
4673 | !(C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO()) && |
4674 | isa<CompileJobAction>(JA)) |
4675 | CmdArgs.push_back("-disable-llvm-passes"); |
4676 | |
4677 | if (Output.getType() == types::TY_Dependencies) { |
4678 | // Handled with other dependency code. |
4679 | } else if (Output.isFilename()) { |
4680 | CmdArgs.push_back("-o"); |
4681 | CmdArgs.push_back(Output.getFilename()); |
4682 | } else { |
4683 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4683, __extension__ __PRETTY_FUNCTION__)); |
4684 | } |
4685 | |
4686 | addDashXForInput(Args, Input, CmdArgs); |
4687 | |
4688 | if (Input.isFilename()) |
4689 | CmdArgs.push_back(Input.getFilename()); |
4690 | else |
4691 | Input.getInputArg().renderAsInput(Args, CmdArgs); |
4692 | |
4693 | Args.AddAllArgs(CmdArgs, options::OPT_undef); |
4694 | |
4695 | const char *Exec = D.getClangProgramPath(); |
4696 | |
4697 | // Optionally embed the -cc1 level arguments into the debug info, for build |
4698 | // analysis. |
4699 | // Also record command line arguments into the debug info if |
4700 | // -grecord-gcc-switches options is set on. |
4701 | // By default, -gno-record-gcc-switches is set on and no recording. |
4702 | if (getToolChain().UseDwarfDebugFlags() || |
4703 | Args.hasFlag(options::OPT_grecord_gcc_switches, |
4704 | options::OPT_gno_record_gcc_switches, false)) { |
4705 | ArgStringList OriginalArgs; |
4706 | for (const auto &Arg : Args) |
4707 | Arg->render(Args, OriginalArgs); |
4708 | |
4709 | SmallString<256> Flags; |
4710 | Flags += Exec; |
4711 | for (const char *OriginalArg : OriginalArgs) { |
4712 | SmallString<128> EscapedArg; |
4713 | EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); |
4714 | Flags += " "; |
4715 | Flags += EscapedArg; |
4716 | } |
4717 | CmdArgs.push_back("-dwarf-debug-flags"); |
4718 | CmdArgs.push_back(Args.MakeArgString(Flags)); |
4719 | } |
4720 | |
4721 | if (IsCuda) { |
4722 | // Host-side cuda compilation receives all device-side outputs in a single |
4723 | // fatbin as Inputs[1]. Include the binary with -fcuda-include-gpubinary. |
4724 | if (Inputs.size() > 1) { |
4725 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4725, __extension__ __PRETTY_FUNCTION__)); |
4726 | CmdArgs.push_back("-fcuda-include-gpubinary"); |
4727 | CmdArgs.push_back(Inputs[1].getFilename()); |
4728 | } |
4729 | |
4730 | if (Args.hasFlag(options::OPT_fcuda_rdc, options::OPT_fno_cuda_rdc, false)) |
4731 | CmdArgs.push_back("-fcuda-rdc"); |
4732 | if (Args.hasFlag(options::OPT_fcuda_short_ptr, |
4733 | options::OPT_fno_cuda_short_ptr, false)) |
4734 | CmdArgs.push_back("-fcuda-short-ptr"); |
4735 | } |
4736 | |
4737 | // OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path |
4738 | // to specify the result of the compile phase on the host, so the meaningful |
4739 | // device declarations can be identified. Also, -fopenmp-is-device is passed |
4740 | // along to tell the frontend that it is generating code for a device, so that |
4741 | // only the relevant declarations are emitted. |
4742 | if (IsOpenMPDevice) { |
4743 | CmdArgs.push_back("-fopenmp-is-device"); |
4744 | if (Inputs.size() == 2) { |
4745 | CmdArgs.push_back("-fopenmp-host-ir-file-path"); |
4746 | CmdArgs.push_back(Args.MakeArgString(Inputs.back().getFilename())); |
4747 | } |
4748 | } |
4749 | |
4750 | // For all the host OpenMP offloading compile jobs we need to pass the targets |
4751 | // information using -fopenmp-targets= option. |
4752 | if (JA.isHostOffloading(Action::OFK_OpenMP)) { |
4753 | SmallString<128> TargetInfo("-fopenmp-targets="); |
4754 | |
4755 | Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ); |
4756 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4757, __extension__ __PRETTY_FUNCTION__)) |
4757 | "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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 4757, __extension__ __PRETTY_FUNCTION__)); |
4758 | for (unsigned i = 0; i < Tgts->getNumValues(); ++i) { |
4759 | if (i) |
4760 | TargetInfo += ','; |
4761 | // We need to get the string from the triple because it may be not exactly |
4762 | // the same as the one we get directly from the arguments. |
4763 | llvm::Triple T(Tgts->getValue(i)); |
4764 | TargetInfo += T.getTriple(); |
4765 | } |
4766 | CmdArgs.push_back(Args.MakeArgString(TargetInfo.str())); |
4767 | } |
4768 | |
4769 | bool WholeProgramVTables = |
4770 | Args.hasFlag(options::OPT_fwhole_program_vtables, |
4771 | options::OPT_fno_whole_program_vtables, false); |
4772 | if (WholeProgramVTables) { |
4773 | if (!D.isUsingLTO()) |
4774 | D.Diag(diag::err_drv_argument_only_allowed_with) |
4775 | << "-fwhole-program-vtables" |
4776 | << "-flto"; |
4777 | CmdArgs.push_back("-fwhole-program-vtables"); |
4778 | } |
4779 | |
4780 | if (Arg *A = Args.getLastArg(options::OPT_fexperimental_isel, |
4781 | options::OPT_fno_experimental_isel)) { |
4782 | CmdArgs.push_back("-mllvm"); |
4783 | if (A->getOption().matches(options::OPT_fexperimental_isel)) { |
4784 | CmdArgs.push_back("-global-isel=1"); |
4785 | |
4786 | // GISel is on by default on AArch64 -O0, so don't bother adding |
4787 | // the fallback remarks for it. Other combinations will add a warning of |
4788 | // some kind. |
4789 | bool IsArchSupported = Triple.getArch() == llvm::Triple::aarch64; |
4790 | bool IsOptLevelSupported = false; |
4791 | |
4792 | Arg *A = Args.getLastArg(options::OPT_O_Group); |
4793 | if (Triple.getArch() == llvm::Triple::aarch64) { |
4794 | if (!A || A->getOption().matches(options::OPT_O0)) |
4795 | IsOptLevelSupported = true; |
4796 | } |
4797 | if (!IsArchSupported || !IsOptLevelSupported) { |
4798 | CmdArgs.push_back("-mllvm"); |
4799 | CmdArgs.push_back("-global-isel-abort=2"); |
4800 | |
4801 | if (!IsArchSupported) |
4802 | D.Diag(diag::warn_drv_experimental_isel_incomplete) << Triple.getArchName(); |
4803 | else |
4804 | D.Diag(diag::warn_drv_experimental_isel_incomplete_opt); |
4805 | } |
4806 | } else { |
4807 | CmdArgs.push_back("-global-isel=0"); |
4808 | } |
4809 | } |
4810 | |
4811 | if (Arg *A = Args.getLastArg(options::OPT_fforce_enable_int128, |
4812 | options::OPT_fno_force_enable_int128)) { |
4813 | if (A->getOption().matches(options::OPT_fforce_enable_int128)) |
4814 | CmdArgs.push_back("-fforce-enable-int128"); |
4815 | } |
4816 | |
4817 | if (Args.hasFlag(options::OPT_fcomplete_member_pointers, |
4818 | options::OPT_fno_complete_member_pointers, false)) |
4819 | CmdArgs.push_back("-fcomplete-member-pointers"); |
4820 | |
4821 | if (Arg *A = Args.getLastArg(options::OPT_moutline, |
4822 | options::OPT_mno_outline)) { |
4823 | if (A->getOption().matches(options::OPT_moutline)) { |
4824 | // We only support -moutline in AArch64 right now. If we're not compiling |
4825 | // for AArch64, emit a warning and ignore the flag. Otherwise, add the |
4826 | // proper mllvm flags. |
4827 | if (Triple.getArch() != llvm::Triple::aarch64) { |
4828 | D.Diag(diag::warn_drv_moutline_unsupported_opt) << Triple.getArchName(); |
4829 | } else { |
4830 | CmdArgs.push_back("-mllvm"); |
4831 | CmdArgs.push_back("-enable-machine-outliner"); |
4832 | } |
4833 | } else { |
4834 | // Disable all outlining behaviour. |
4835 | CmdArgs.push_back("-mllvm"); |
4836 | CmdArgs.push_back("-enable-machine-outliner=never"); |
4837 | } |
4838 | } |
4839 | |
4840 | if (Args.hasFlag(options::OPT_faddrsig, options::OPT_fno_addrsig, |
4841 | getToolChain().getTriple().isOSBinFormatELF() && |
4842 | getToolChain().useIntegratedAs())) |
4843 | CmdArgs.push_back("-faddrsig"); |
4844 | |
4845 | // Finally add the compile command to the compilation. |
4846 | if (Args.hasArg(options::OPT__SLASH_fallback) && |
4847 | Output.getType() == types::TY_Object && |
4848 | (InputType == types::TY_C || InputType == types::TY_CXX)) { |
4849 | auto CLCommand = |
4850 | getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput); |
4851 | C.addCommand(llvm::make_unique<FallbackCommand>( |
4852 | JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand))); |
4853 | } else if (Args.hasArg(options::OPT__SLASH_fallback) && |
4854 | isa<PrecompileJobAction>(JA)) { |
4855 | // In /fallback builds, run the main compilation even if the pch generation |
4856 | // fails, so that the main compilation's fallback to cl.exe runs. |
4857 | C.addCommand(llvm::make_unique<ForceSuccessCommand>(JA, *this, Exec, |
4858 | CmdArgs, Inputs)); |
4859 | } else { |
4860 | C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
4861 | } |
4862 | |
4863 | if (Arg *A = Args.getLastArg(options::OPT_pg)) |
4864 | if (Args.hasArg(options::OPT_fomit_frame_pointer)) |
4865 | D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer" |
4866 | << A->getAsString(Args); |
4867 | |
4868 | // Claim some arguments which clang supports automatically. |
4869 | |
4870 | // -fpch-preprocess is used with gcc to add a special marker in the output to |
4871 | // include the PCH file. Clang's PTH solution is completely transparent, so we |
4872 | // do not need to deal with it at all. |
4873 | Args.ClaimAllArgs(options::OPT_fpch_preprocess); |
4874 | |
4875 | // Claim some arguments which clang doesn't support, but we don't |
4876 | // care to warn the user about. |
4877 | Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group); |
4878 | Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group); |
4879 | |
4880 | // Disable warnings for clang -E -emit-llvm foo.c |
4881 | Args.ClaimAllArgs(options::OPT_emit_llvm); |
4882 | } |
4883 | |
4884 | Clang::Clang(const ToolChain &TC) |
4885 | // CAUTION! The first constructor argument ("clang") is not arbitrary, |
4886 | // as it is for other tools. Some operations on a Tool actually test |
4887 | // whether that tool is Clang based on the Tool's Name as a string. |
4888 | : Tool("clang", "clang frontend", TC, RF_Full) {} |
4889 | |
4890 | Clang::~Clang() {} |
4891 | |
4892 | /// Add options related to the Objective-C runtime/ABI. |
4893 | /// |
4894 | /// Returns true if the runtime is non-fragile. |
4895 | ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args, |
4896 | ArgStringList &cmdArgs, |
4897 | RewriteKind rewriteKind) const { |
4898 | // Look for the controlling runtime option. |
4899 | Arg *runtimeArg = |
4900 | args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime, |
4901 | options::OPT_fobjc_runtime_EQ); |
4902 | |
4903 | // Just forward -fobjc-runtime= to the frontend. This supercedes |
4904 | // options about fragility. |
4905 | if (runtimeArg && |
4906 | runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) { |
4907 | ObjCRuntime runtime; |
4908 | StringRef value = runtimeArg->getValue(); |
4909 | if (runtime.tryParse(value)) { |
4910 | getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime) |
4911 | << value; |
4912 | } |
4913 | if ((runtime.getKind() == ObjCRuntime::GNUstep) && |
4914 | (runtime.getVersion() >= VersionTuple(2, 0))) |
4915 | if (!getToolChain().getTriple().isOSBinFormatELF()) { |
4916 | getToolChain().getDriver().Diag( |
4917 | diag::err_drv_gnustep_objc_runtime_incompatible_binary) |
4918 | << runtime.getVersion().getMajor(); |
4919 | } |
4920 | |
4921 | runtimeArg->render(args, cmdArgs); |
4922 | return runtime; |
4923 | } |
4924 | |
4925 | // Otherwise, we'll need the ABI "version". Version numbers are |
4926 | // slightly confusing for historical reasons: |
4927 | // 1 - Traditional "fragile" ABI |
4928 | // 2 - Non-fragile ABI, version 1 |
4929 | // 3 - Non-fragile ABI, version 2 |
4930 | unsigned objcABIVersion = 1; |
4931 | // If -fobjc-abi-version= is present, use that to set the version. |
4932 | if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) { |
4933 | StringRef value = abiArg->getValue(); |
4934 | if (value == "1") |
4935 | objcABIVersion = 1; |
4936 | else if (value == "2") |
4937 | objcABIVersion = 2; |
4938 | else if (value == "3") |
4939 | objcABIVersion = 3; |
4940 | else |
4941 | getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value; |
4942 | } else { |
4943 | // Otherwise, determine if we are using the non-fragile ABI. |
4944 | bool nonFragileABIIsDefault = |
4945 | (rewriteKind == RK_NonFragile || |
4946 | (rewriteKind == RK_None && |
4947 | getToolChain().IsObjCNonFragileABIDefault())); |
4948 | if (args.hasFlag(options::OPT_fobjc_nonfragile_abi, |
4949 | options::OPT_fno_objc_nonfragile_abi, |
4950 | nonFragileABIIsDefault)) { |
4951 | // Determine the non-fragile ABI version to use. |
4952 | #ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO |
4953 | unsigned nonFragileABIVersion = 1; |
4954 | #else |
4955 | unsigned nonFragileABIVersion = 2; |
4956 | #endif |
4957 | |
4958 | if (Arg *abiArg = |
4959 | args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) { |
4960 | StringRef value = abiArg->getValue(); |
4961 | if (value == "1") |
4962 | nonFragileABIVersion = 1; |
4963 | else if (value == "2") |
4964 | nonFragileABIVersion = 2; |
4965 | else |
4966 | getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) |
4967 | << value; |
4968 | } |
4969 | |
4970 | objcABIVersion = 1 + nonFragileABIVersion; |
4971 | } else { |
4972 | objcABIVersion = 1; |
4973 | } |
4974 | } |
4975 | |
4976 | // We don't actually care about the ABI version other than whether |
4977 | // it's non-fragile. |
4978 | bool isNonFragile = objcABIVersion != 1; |
4979 | |
4980 | // If we have no runtime argument, ask the toolchain for its default runtime. |
4981 | // However, the rewriter only really supports the Mac runtime, so assume that. |
4982 | ObjCRuntime runtime; |
4983 | if (!runtimeArg) { |
4984 | switch (rewriteKind) { |
4985 | case RK_None: |
4986 | runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); |
4987 | break; |
4988 | case RK_Fragile: |
4989 | runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple()); |
4990 | break; |
4991 | case RK_NonFragile: |
4992 | runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); |
4993 | break; |
4994 | } |
4995 | |
4996 | // -fnext-runtime |
4997 | } else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) { |
4998 | // On Darwin, make this use the default behavior for the toolchain. |
4999 | if (getToolChain().getTriple().isOSDarwin()) { |
5000 | runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); |
5001 | |
5002 | // Otherwise, build for a generic macosx port. |
5003 | } else { |
5004 | runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); |
5005 | } |
5006 | |
5007 | // -fgnu-runtime |
5008 | } else { |
5009 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5009, __extension__ __PRETTY_FUNCTION__)); |
5010 | // Legacy behaviour is to target the gnustep runtime if we are in |
5011 | // non-fragile mode or the GCC runtime in fragile mode. |
5012 | if (isNonFragile) |
5013 | runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(2, 0)); |
5014 | else |
5015 | runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple()); |
5016 | } |
5017 | |
5018 | cmdArgs.push_back( |
5019 | args.MakeArgString("-fobjc-runtime=" + runtime.getAsString())); |
5020 | return runtime; |
5021 | } |
5022 | |
5023 | static bool maybeConsumeDash(const std::string &EH, size_t &I) { |
5024 | bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-'); |
5025 | I += HaveDash; |
5026 | return !HaveDash; |
5027 | } |
5028 | |
5029 | namespace { |
5030 | struct EHFlags { |
5031 | bool Synch = false; |
5032 | bool Asynch = false; |
5033 | bool NoUnwindC = false; |
5034 | }; |
5035 | } // end anonymous namespace |
5036 | |
5037 | /// /EH controls whether to run destructor cleanups when exceptions are |
5038 | /// thrown. There are three modifiers: |
5039 | /// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions. |
5040 | /// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions. |
5041 | /// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR. |
5042 | /// - c: Assume that extern "C" functions are implicitly nounwind. |
5043 | /// The default is /EHs-c-, meaning cleanups are disabled. |
5044 | static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) { |
5045 | EHFlags EH; |
5046 | |
5047 | std::vector<std::string> EHArgs = |
5048 | Args.getAllArgValues(options::OPT__SLASH_EH); |
5049 | for (auto EHVal : EHArgs) { |
5050 | for (size_t I = 0, E = EHVal.size(); I != E; ++I) { |
5051 | switch (EHVal[I]) { |
5052 | case 'a': |
5053 | EH.Asynch = maybeConsumeDash(EHVal, I); |
5054 | if (EH.Asynch) |
5055 | EH.Synch = false; |
5056 | continue; |
5057 | case 'c': |
5058 | EH.NoUnwindC = maybeConsumeDash(EHVal, I); |
5059 | continue; |
5060 | case 's': |
5061 | EH.Synch = maybeConsumeDash(EHVal, I); |
5062 | if (EH.Synch) |
5063 | EH.Asynch = false; |
5064 | continue; |
5065 | default: |
5066 | break; |
5067 | } |
5068 | D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal; |
5069 | break; |
5070 | } |
5071 | } |
5072 | // The /GX, /GX- flags are only processed if there are not /EH flags. |
5073 | // The default is that /GX is not specified. |
5074 | if (EHArgs.empty() && |
5075 | Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_, |
5076 | /*default=*/false)) { |
5077 | EH.Synch = true; |
5078 | EH.NoUnwindC = true; |
5079 | } |
5080 | |
5081 | return EH; |
5082 | } |
5083 | |
5084 | void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType, |
5085 | ArgStringList &CmdArgs, |
5086 | codegenoptions::DebugInfoKind *DebugInfoKind, |
5087 | bool *EmitCodeView) const { |
5088 | unsigned RTOptionID = options::OPT__SLASH_MT; |
5089 | |
5090 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
5091 | // The /LDd option implies /MTd. The dependent lib part can be overridden, |
5092 | // but defining _DEBUG is sticky. |
5093 | RTOptionID = options::OPT__SLASH_MTd; |
5094 | |
5095 | if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group)) |
5096 | RTOptionID = A->getOption().getID(); |
5097 | |
5098 | StringRef FlagForCRT; |
5099 | switch (RTOptionID) { |
5100 | case options::OPT__SLASH_MD: |
5101 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
5102 | CmdArgs.push_back("-D_DEBUG"); |
5103 | CmdArgs.push_back("-D_MT"); |
5104 | CmdArgs.push_back("-D_DLL"); |
5105 | FlagForCRT = "--dependent-lib=msvcrt"; |
5106 | break; |
5107 | case options::OPT__SLASH_MDd: |
5108 | CmdArgs.push_back("-D_DEBUG"); |
5109 | CmdArgs.push_back("-D_MT"); |
5110 | CmdArgs.push_back("-D_DLL"); |
5111 | FlagForCRT = "--dependent-lib=msvcrtd"; |
5112 | break; |
5113 | case options::OPT__SLASH_MT: |
5114 | if (Args.hasArg(options::OPT__SLASH_LDd)) |
5115 | CmdArgs.push_back("-D_DEBUG"); |
5116 | CmdArgs.push_back("-D_MT"); |
5117 | CmdArgs.push_back("-flto-visibility-public-std"); |
5118 | FlagForCRT = "--dependent-lib=libcmt"; |
5119 | break; |
5120 | case options::OPT__SLASH_MTd: |
5121 | CmdArgs.push_back("-D_DEBUG"); |
5122 | CmdArgs.push_back("-D_MT"); |
5123 | CmdArgs.push_back("-flto-visibility-public-std"); |
5124 | FlagForCRT = "--dependent-lib=libcmtd"; |
5125 | break; |
5126 | default: |
5127 | llvm_unreachable("Unexpected option ID.")::llvm::llvm_unreachable_internal("Unexpected option ID.", "/build/llvm-toolchain-snapshot-7~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5127); |
5128 | } |
5129 | |
5130 | if (Args.hasArg(options::OPT__SLASH_Zl)) { |
5131 | CmdArgs.push_back("-D_VC_NODEFAULTLIB"); |
5132 | } else { |
5133 | CmdArgs.push_back(FlagForCRT.data()); |
5134 | |
5135 | // This provides POSIX compatibility (maps 'open' to '_open'), which most |
5136 | // users want. The /Za flag to cl.exe turns this off, but it's not |
5137 | // implemented in clang. |
5138 | CmdArgs.push_back("--dependent-lib=oldnames"); |
5139 | } |
5140 | |
5141 | if (Arg *A = Args.getLastArg(options::OPT_show_includes)) |
5142 | A->render(Args, CmdArgs); |
5143 | |
5144 | // This controls whether or not we emit RTTI data for polymorphic types. |
5145 | if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR, |
5146 | /*default=*/false)) |
5147 | CmdArgs.push_back("-fno-rtti-data"); |
5148 | |
5149 | // This controls whether or not we emit stack-protector instrumentation. |
5150 | // In MSVC, Buffer Security Check (/GS) is on by default. |
5151 | if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_, |
5152 | /*default=*/true)) { |
5153 | CmdArgs.push_back("-stack-protector"); |
5154 | CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong))); |
5155 | } |
5156 | |
5157 | // Emit CodeView if -Z7, -Zd, or -gline-tables-only are present. |
5158 | if (Arg *DebugInfoArg = |
5159 | Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd, |
5160 | options::OPT_gline_tables_only)) { |
5161 | *EmitCodeView = true; |
5162 | if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7)) |
5163 | *DebugInfoKind = codegenoptions::LimitedDebugInfo; |
5164 | else |
5165 | *DebugInfoKind = codegenoptions::DebugLineTablesOnly; |
5166 | CmdArgs.push_back("-gcodeview"); |
5167 | } else { |
5168 | *EmitCodeView = false; |
5169 | } |
5170 | |
5171 | const Driver &D = getToolChain().getDriver(); |
5172 | EHFlags EH = parseClangCLEHFlags(D, Args); |
5173 | if (EH.Synch || EH.Asynch) { |
5174 | if (types::isCXX(InputType)) |
5175 | CmdArgs.push_back("-fcxx-exceptions"); |
5176 | CmdArgs.push_back("-fexceptions"); |
5177 | } |
5178 | if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC) |
5179 | CmdArgs.push_back("-fexternc-nounwind"); |
5180 | |
5181 | // /EP should expand to -E -P. |
5182 | if (Args.hasArg(options::OPT__SLASH_EP)) { |
5183 | CmdArgs.push_back("-E"); |
5184 | CmdArgs.push_back("-P"); |
5185 | } |
5186 | |
5187 | unsigned VolatileOptionID; |
5188 | if (getToolChain().getArch() == llvm::Triple::x86_64 || |
5189 | getToolChain().getArch() == llvm::Triple::x86) |
5190 | VolatileOptionID = options::OPT__SLASH_volatile_ms; |
5191 | else |
5192 | VolatileOptionID = options::OPT__SLASH_volatile_iso; |
5193 | |
5194 | if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group)) |
5195 | VolatileOptionID = A->getOption().getID(); |
5196 | |
5197 | if (VolatileOptionID == options::OPT__SLASH_volatile_ms) |
5198 | CmdArgs.push_back("-fms-volatile"); |
5199 | |
5200 | Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg); |
5201 | Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb); |
5202 | if (MostGeneralArg && BestCaseArg) |
5203 | D.Diag(clang::diag::err_drv_argument_not_allowed_with) |
5204 | << MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args); |
5205 | |
5206 | if (MostGeneralArg) { |
5207 | Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms); |
5208 | Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm); |
5209 | Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv); |
5210 | |
5211 | Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg; |
5212 | Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg; |
5213 | if (FirstConflict && SecondConflict && FirstConflict != SecondConflict) |
5214 | D.Diag(clang::diag::err_drv_argument_not_allowed_with) |
5215 | << FirstConflict->getAsString(Args) |
5216 | << SecondConflict->getAsString(Args); |
5217 | |
5218 | if (SingleArg) |
5219 | CmdArgs.push_back("-fms-memptr-rep=single"); |
5220 | else if (MultipleArg) |
5221 | CmdArgs.push_back("-fms-memptr-rep=multiple"); |
5222 | else |
5223 | CmdArgs.push_back("-fms-memptr-rep=virtual"); |
5224 | } |
5225 | |
5226 | // Parse the default calling convention options. |
5227 | if (Arg *CCArg = |
5228 | Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr, |
5229 | options::OPT__SLASH_Gz, options::OPT__SLASH_Gv, |
5230 | options::OPT__SLASH_Gregcall)) { |
5231 | unsigned DCCOptId = CCArg->getOption().getID(); |
5232 | const char *DCCFlag = nullptr; |
5233 | bool ArchSupported = true; |
5234 | llvm::Triple::ArchType Arch = getToolChain().getArch(); |
5235 | switch (DCCOptId) { |
5236 | case options::OPT__SLASH_Gd: |
5237 | DCCFlag = "-fdefault-calling-conv=cdecl"; |
5238 | break; |
5239 | case options::OPT__SLASH_Gr: |
5240 | ArchSupported = Arch == llvm::Triple::x86; |
5241 | DCCFlag = "-fdefault-calling-conv=fastcall"; |
5242 | break; |
5243 | case options::OPT__SLASH_Gz: |
5244 | ArchSupported = Arch == llvm::Triple::x86; |
5245 | DCCFlag = "-fdefault-calling-conv=stdcall"; |
5246 | break; |
5247 | case options::OPT__SLASH_Gv: |
5248 | ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64; |
5249 | DCCFlag = "-fdefault-calling-conv=vectorcall"; |
5250 | break; |
5251 | case options::OPT__SLASH_Gregcall: |
5252 | ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64; |
5253 | DCCFlag = "-fdefault-calling-conv=regcall"; |
5254 | break; |
5255 | } |
5256 | |
5257 | // MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either. |
5258 | if (ArchSupported && DCCFlag) |
5259 | CmdArgs.push_back(DCCFlag); |
5260 | } |
5261 | |
5262 | if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ)) |
5263 | A->render(Args, CmdArgs); |
5264 | |
5265 | if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) { |
5266 | CmdArgs.push_back("-fdiagnostics-format"); |
5267 | if (Args.hasArg(options::OPT__SLASH_fallback)) |
5268 | CmdArgs.push_back("msvc-fallback"); |
5269 | else |
5270 | CmdArgs.push_back("msvc"); |
5271 | } |
5272 | |
5273 | if (Args.hasArg(options::OPT__SLASH_Guard) && |
5274 | Args.getLastArgValue(options::OPT__SLASH_Guard).equals_lower("cf")) |
5275 | CmdArgs.push_back("-cfguard"); |
5276 | } |
5277 | |
5278 | visualstudio::Compiler *Clang::getCLFallback() const { |
5279 | if (!CLFallback) |
5280 | CLFallback.reset(new visualstudio::Compiler(getToolChain())); |
5281 | return CLFallback.get(); |
5282 | } |
5283 | |
5284 | |
5285 | const char *Clang::getBaseInputName(const ArgList &Args, |
5286 | const InputInfo &Input) { |
5287 | return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput())); |
5288 | } |
5289 | |
5290 | const char *Clang::getBaseInputStem(const ArgList &Args, |
5291 | const InputInfoList &Inputs) { |
5292 | const char *Str = getBaseInputName(Args, Inputs[0]); |
5293 | |
5294 | if (const char *End = strrchr(Str, '.')) |
5295 | return Args.MakeArgString(std::string(Str, End)); |
5296 | |
5297 | return Str; |
5298 | } |
5299 | |
5300 | const char *Clang::getDependencyFileName(const ArgList &Args, |
5301 | const InputInfoList &Inputs) { |
5302 | // FIXME: Think about this more. |
5303 | std::string Res; |
5304 | |
5305 | if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) { |
5306 | std::string Str(OutputOpt->getValue()); |
5307 | Res = Str.substr(0, Str.rfind('.')); |
5308 | } else { |
5309 | Res = getBaseInputStem(Args, Inputs); |
5310 | } |
5311 | return Args.MakeArgString(Res + ".d"); |
5312 | } |
5313 | |
5314 | // Begin ClangAs |
5315 | |
5316 | void ClangAs::AddMIPSTargetArgs(const ArgList &Args, |
5317 | ArgStringList &CmdArgs) const { |
5318 | StringRef CPUName; |
5319 | StringRef ABIName; |
5320 | const llvm::Triple &Triple = getToolChain().getTriple(); |
5321 | mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); |
5322 | |
5323 | CmdArgs.push_back("-target-abi"); |
5324 | CmdArgs.push_back(ABIName.data()); |
5325 | } |
5326 | |
5327 | void ClangAs::AddX86TargetArgs(const ArgList &Args, |
5328 | ArgStringList &CmdArgs) const { |
5329 | if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { |
5330 | StringRef Value = A->getValue(); |
5331 | if (Value == "intel" || Value == "att") { |
5332 | CmdArgs.push_back("-mllvm"); |
5333 | CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); |
5334 | } else { |
5335 | getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) |
5336 | << A->getOption().getName() << Value; |
5337 | } |
5338 | } |
5339 | } |
5340 | |
5341 | void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, |
5342 | const InputInfo &Output, const InputInfoList &Inputs, |
5343 | const ArgList &Args, |
5344 | const char *LinkingOutput) const { |
5345 | ArgStringList CmdArgs; |
5346 | |
5347 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5347, __extension__ __PRETTY_FUNCTION__)); |
5348 | const InputInfo &Input = Inputs[0]; |
5349 | |
5350 | const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); |
5351 | const std::string &TripleStr = Triple.getTriple(); |
5352 | const auto &D = getToolChain().getDriver(); |
5353 | |
5354 | // Don't warn about "clang -w -c foo.s" |
5355 | Args.ClaimAllArgs(options::OPT_w); |
5356 | // and "clang -emit-llvm -c foo.s" |
5357 | Args.ClaimAllArgs(options::OPT_emit_llvm); |
5358 | |
5359 | claimNoWarnArgs(Args); |
5360 | |
5361 | // Invoke ourselves in -cc1as mode. |
5362 | // |
5363 | // FIXME: Implement custom jobs for internal actions. |
5364 | CmdArgs.push_back("-cc1as"); |
5365 | |
5366 | // Add the "effective" target triple. |
5367 | CmdArgs.push_back("-triple"); |
5368 | CmdArgs.push_back(Args.MakeArgString(TripleStr)); |
5369 | |
5370 | // Set the output mode, we currently only expect to be used as a real |
5371 | // assembler. |
5372 | CmdArgs.push_back("-filetype"); |
5373 | CmdArgs.push_back("obj"); |
5374 | |
5375 | // Set the main file name, so that debug info works even with |
5376 | // -save-temps or preprocessed assembly. |
5377 | CmdArgs.push_back("-main-file-name"); |
5378 | CmdArgs.push_back(Clang::getBaseInputName(Args, Input)); |
5379 | |
5380 | // Add the target cpu |
5381 | std::string CPU = getCPUName(Args, Triple, /*FromAs*/ true); |
5382 | if (!CPU.empty()) { |
5383 | CmdArgs.push_back("-target-cpu"); |
5384 | CmdArgs.push_back(Args.MakeArgString(CPU)); |
5385 | } |
5386 | |
5387 | // Add the target features |
5388 | getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true); |
5389 | |
5390 | // Ignore explicit -force_cpusubtype_ALL option. |
5391 | (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); |
5392 | |
5393 | // Pass along any -I options so we get proper .include search paths. |
5394 | Args.AddAllArgs(CmdArgs, options::OPT_I_Group); |
5395 | |
5396 | // Determine the original source input. |
5397 | const Action *SourceAction = &JA; |
5398 | while (SourceAction->getKind() != Action::InputClass) { |
5399 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5399, __extension__ __PRETTY_FUNCTION__)); |
5400 | SourceAction = SourceAction->getInputs()[0]; |
5401 | } |
5402 | |
5403 | // Forward -g and handle debug info related flags, assuming we are dealing |
5404 | // with an actual assembly file. |
5405 | bool WantDebug = false; |
5406 | unsigned DwarfVersion = 0; |
5407 | Args.ClaimAllArgs(options::OPT_g_Group); |
5408 | if (Arg *A = Args.getLastArg(options::OPT_g_Group)) { |
5409 | WantDebug = !A->getOption().matches(options::OPT_g0) && |
5410 | !A->getOption().matches(options::OPT_ggdb0); |
5411 | if (WantDebug) |
5412 | DwarfVersion = DwarfVersionNum(A->getSpelling()); |
5413 | } |
5414 | if (DwarfVersion == 0) |
5415 | DwarfVersion = getToolChain().GetDefaultDwarfVersion(); |
5416 | |
5417 | codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; |
5418 | |
5419 | if (SourceAction->getType() == types::TY_Asm || |
5420 | SourceAction->getType() == types::TY_PP_Asm) { |
5421 | // You might think that it would be ok to set DebugInfoKind outside of |
5422 | // the guard for source type, however there is a test which asserts |
5423 | // that some assembler invocation receives no -debug-info-kind, |
5424 | // and it's not clear whether that test is just overly restrictive. |
5425 | DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo |
5426 | : codegenoptions::NoDebugInfo); |
5427 | // Add the -fdebug-compilation-dir flag if needed. |
5428 | addDebugCompDirArg(Args, CmdArgs); |
5429 | |
5430 | addDebugPrefixMapArg(getToolChain().getDriver(), Args, CmdArgs); |
5431 | |
5432 | // Set the AT_producer to the clang version when using the integrated |
5433 | // assembler on assembly source files. |
5434 | CmdArgs.push_back("-dwarf-debug-producer"); |
5435 | CmdArgs.push_back(Args.MakeArgString(getClangFullVersion())); |
5436 | |
5437 | // And pass along -I options |
5438 | Args.AddAllArgs(CmdArgs, options::OPT_I); |
5439 | } |
5440 | RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion, |
5441 | llvm::DebuggerKind::Default); |
5442 | RenderDebugInfoCompressionArgs(Args, CmdArgs, D, getToolChain()); |
5443 | |
5444 | |
5445 | // Handle -fPIC et al -- the relocation-model affects the assembler |
5446 | // for some targets. |
5447 | llvm::Reloc::Model RelocationModel; |
5448 | unsigned PICLevel; |
5449 | bool IsPIE; |
5450 | std::tie(RelocationModel, PICLevel, IsPIE) = |
5451 | ParsePICArgs(getToolChain(), Args); |
5452 | |
5453 | const char *RMName = RelocationModelName(RelocationModel); |
5454 | if (RMName) { |
5455 | CmdArgs.push_back("-mrelocation-model"); |
5456 | CmdArgs.push_back(RMName); |
5457 | } |
5458 | |
5459 | // Optionally embed the -cc1as level arguments into the debug info, for build |
5460 | // analysis. |
5461 | if (getToolChain().UseDwarfDebugFlags()) { |
5462 | ArgStringList OriginalArgs; |
5463 | for (const auto &Arg : Args) |
5464 | Arg->render(Args, OriginalArgs); |
5465 | |
5466 | SmallString<256> Flags; |
5467 | const char *Exec = getToolChain().getDriver().getClangProgramPath(); |
5468 | Flags += Exec; |
5469 | for (const char *OriginalArg : OriginalArgs) { |
5470 | SmallString<128> EscapedArg; |
5471 | EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); |
5472 | Flags += " "; |
5473 | Flags += EscapedArg; |
5474 | } |
5475 | CmdArgs.push_back("-dwarf-debug-flags"); |
5476 | CmdArgs.push_back(Args.MakeArgString(Flags)); |
5477 | } |
5478 | |
5479 | // FIXME: Add -static support, once we have it. |
5480 | |
5481 | // Add target specific flags. |
5482 | switch (getToolChain().getArch()) { |
5483 | default: |
5484 | break; |
5485 | |
5486 | case llvm::Triple::mips: |
5487 | case llvm::Triple::mipsel: |
5488 | case llvm::Triple::mips64: |
5489 | case llvm::Triple::mips64el: |
5490 | AddMIPSTargetArgs(Args, CmdArgs); |
5491 | break; |
5492 | |
5493 | case llvm::Triple::x86: |
5494 | case llvm::Triple::x86_64: |
5495 | AddX86TargetArgs(Args, CmdArgs); |
5496 | break; |
5497 | |
5498 | case llvm::Triple::arm: |
5499 | case llvm::Triple::armeb: |
5500 | case llvm::Triple::thumb: |
5501 | case llvm::Triple::thumbeb: |
5502 | // This isn't in AddARMTargetArgs because we want to do this for assembly |
5503 | // only, not C/C++. |
5504 | if (Args.hasFlag(options::OPT_mdefault_build_attributes, |
5505 | options::OPT_mno_default_build_attributes, true)) { |
5506 | CmdArgs.push_back("-mllvm"); |
5507 | CmdArgs.push_back("-arm-add-build-attributes"); |
5508 | } |
5509 | break; |
5510 | } |
5511 | |
5512 | // Consume all the warning flags. Usually this would be handled more |
5513 | // gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as |
5514 | // doesn't handle that so rather than warning about unused flags that are |
5515 | // actually used, we'll lie by omission instead. |
5516 | // FIXME: Stop lying and consume only the appropriate driver flags |
5517 | Args.ClaimAllArgs(options::OPT_W_Group); |
5518 | |
5519 | CollectArgsForIntegratedAssembler(C, Args, CmdArgs, |
5520 | getToolChain().getDriver()); |
5521 | |
5522 | Args.AddAllArgs(CmdArgs, options::OPT_mllvm); |
5523 | |
5524 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5524, __extension__ __PRETTY_FUNCTION__)); |
5525 | CmdArgs.push_back("-o"); |
5526 | CmdArgs.push_back(Output.getFilename()); |
5527 | |
5528 | if (Args.hasArg(options::OPT_gsplit_dwarf) && |
5529 | getToolChain().getTriple().isOSLinux()) { |
5530 | CmdArgs.push_back("-split-dwarf-file"); |
5531 | CmdArgs.push_back(SplitDebugName(Args, Input)); |
5532 | } |
5533 | |
5534 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5534, __extension__ __PRETTY_FUNCTION__)); |
5535 | CmdArgs.push_back(Input.getFilename()); |
5536 | |
5537 | const char *Exec = getToolChain().getDriver().getClangProgramPath(); |
5538 | C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
5539 | } |
5540 | |
5541 | // Begin OffloadBundler |
5542 | |
5543 | void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA, |
5544 | const InputInfo &Output, |
5545 | const InputInfoList &Inputs, |
5546 | const llvm::opt::ArgList &TCArgs, |
5547 | const char *LinkingOutput) const { |
5548 | // The version with only one output is expected to refer to a bundling job. |
5549 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5549, __extension__ __PRETTY_FUNCTION__)); |
5550 | |
5551 | // The bundling command looks like this: |
5552 | // clang-offload-bundler -type=bc |
5553 | // -targets=host-triple,openmp-triple1,openmp-triple2 |
5554 | // -outputs=input_file |
5555 | // -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" |
5556 | |
5557 | ArgStringList CmdArgs; |
5558 | |
5559 | // Get the type. |
5560 | CmdArgs.push_back(TCArgs.MakeArgString( |
5561 | Twine("-type=") + types::getTypeTempSuffix(Output.getType()))); |
5562 | |
5563 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5564, __extension__ __PRETTY_FUNCTION__)) |
5564 | "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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5564, __extension__ __PRETTY_FUNCTION__)); |
5565 | |
5566 | // Get the targets. |
5567 | SmallString<128> Triples; |
5568 | Triples += "-targets="; |
5569 | for (unsigned I = 0; I < Inputs.size(); ++I) { |
5570 | if (I) |
5571 | Triples += ','; |
5572 | |
5573 | // Find ToolChain for this input. |
5574 | Action::OffloadKind CurKind = Action::OFK_Host; |
5575 | const ToolChain *CurTC = &getToolChain(); |
5576 | const Action *CurDep = JA.getInputs()[I]; |
5577 | |
5578 | if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) { |
5579 | CurTC = nullptr; |
5580 | OA->doOnEachDependence([&](Action *A, const ToolChain *TC, const char *) { |
5581 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5581, __extension__ __PRETTY_FUNCTION__)); |
5582 | CurKind = A->getOffloadingDeviceKind(); |
5583 | CurTC = TC; |
5584 | }); |
5585 | } |
5586 | Triples += Action::GetOffloadKindName(CurKind); |
5587 | Triples += '-'; |
5588 | Triples += CurTC->getTriple().normalize(); |
5589 | if (CurKind == Action::OFK_HIP && CurDep->getOffloadingArch()) { |
5590 | Triples += '-'; |
5591 | Triples += CurDep->getOffloadingArch(); |
5592 | } |
5593 | } |
5594 | CmdArgs.push_back(TCArgs.MakeArgString(Triples)); |
5595 | |
5596 | // Get bundled file command. |
5597 | CmdArgs.push_back( |
5598 | TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename())); |
5599 | |
5600 | // Get unbundled files command. |
5601 | SmallString<128> UB; |
5602 | UB += "-inputs="; |
5603 | for (unsigned I = 0; I < Inputs.size(); ++I) { |
5604 | if (I) |
5605 | UB += ','; |
5606 | |
5607 | // Find ToolChain for this input. |
5608 | const ToolChain *CurTC = &getToolChain(); |
5609 | if (const auto *OA = dyn_cast<OffloadAction>(JA.getInputs()[I])) { |
5610 | CurTC = nullptr; |
5611 | OA->doOnEachDependence([&](Action *, const ToolChain *TC, const char *) { |
5612 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5612, __extension__ __PRETTY_FUNCTION__)); |
5613 | CurTC = TC; |
5614 | }); |
5615 | } |
5616 | UB += CurTC->getInputFilename(Inputs[I]); |
5617 | } |
5618 | CmdArgs.push_back(TCArgs.MakeArgString(UB)); |
5619 | |
5620 | // All the inputs are encoded as commands. |
5621 | C.addCommand(llvm::make_unique<Command>( |
5622 | JA, *this, |
5623 | TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), |
5624 | CmdArgs, None)); |
5625 | } |
5626 | |
5627 | void OffloadBundler::ConstructJobMultipleOutputs( |
5628 | Compilation &C, const JobAction &JA, const InputInfoList &Outputs, |
5629 | const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, |
5630 | const char *LinkingOutput) const { |
5631 | // The version with multiple outputs is expected to refer to a unbundling job. |
5632 | auto &UA = cast<OffloadUnbundlingJobAction>(JA); |
5633 | |
5634 | // The unbundling command looks like this: |
5635 | // clang-offload-bundler -type=bc |
5636 | // -targets=host-triple,openmp-triple1,openmp-triple2 |
5637 | // -inputs=input_file |
5638 | // -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" |
5639 | // -unbundle |
5640 | |
5641 | ArgStringList CmdArgs; |
5642 | |
5643 | 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~svn338205/tools/clang/lib/Driver/ToolChains/Clang.cpp" , 5643, __extension__ __PRETTY_FUNCTION__)); |
5644 | InputInfo Input = Inputs.front(); |
5645 | |
5646 | // Get the type. |
5647 | CmdArgs.push_back(TCArgs.MakeArgString( |
5648 | Twine("-type=") + types::getTypeTempSuffix(Input.getType()))); |
5649 | |
5650 | // Get the targets. |
5651 | SmallString<128> Triples; |
5652 | Triples += "-targets="; |
5653 | auto DepInfo = UA.getDependentActionsInfo(); |
5654 | for (unsigned I = 0; I < DepInfo.size(); ++I) { |
5655 | if (I) |
5656 | Triples += ','; |
5657 | |
5658 | auto &Dep = DepInfo[I]; |
5659 | Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind); |
5660 | Triples += '-'; |
5661 | Triples += Dep.DependentToolChain->getTriple().normalize(); |
5662 | if (Dep.DependentOffloadKind == Action::OFK_HIP && |
5663 | !Dep.DependentBoundArch.empty()) { |
5664 | Triples += '-'; |
5665 | Triples += Dep.DependentBoundArch; |
5666 | } |
5667 | } |
5668 | |
5669 | CmdArgs.push_back(TCArgs.MakeArgString(Triples)); |
5670 | |
5671 | // Get bundled file command. |
5672 | CmdArgs.push_back( |
5673 | TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename())); |
5674 | |
5675 | // Get unbundled files command. |
5676 | SmallString<128> UB; |
5677 | UB += "-outputs="; |
5678 | for (unsigned I = 0; I < Outputs.size(); ++I) { |
5679 | if (I) |
5680 | UB += ','; |
5681 | UB += DepInfo[I].DependentToolChain->getInputFilename(Outputs[I]); |
5682 | } |
5683 | CmdArgs.push_back(TCArgs.MakeArgString(UB)); |
5684 | CmdArgs.push_back("-unbundle"); |
5685 | |
5686 | // All the inputs are encoded as commands. |
5687 | C.addCommand(llvm::make_unique<Command>( |
5688 | JA, *this, |
5689 | TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), |
5690 | CmdArgs, None)); |
5691 | } |