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* [Sema] Suppress -Wformat diagnostics for bool types when printed using %hhdErik Pilkington2019-09-181-0/+46
| | | | | | | | | | | Also, add a diagnostic under -Wformat for printing a boolean value as a character. rdar://54579473 Differential revision: https://reviews.llvm.org/D66856 llvm-svn: 372247
* [c++20] P1331R2: Allow transient use of uninitialized objects inRichard Smith2019-09-186-43/+177
| | | | | | constant evaluation. llvm-svn: 372237
* [OPENMP5.0]Allow multiple context selectors in the context selectorAlexey Bataev2019-09-184-18/+21
| | | | | | | | | sets. According to OpenMP 5.0, context selector set might include several context selectors, separated with commas. Patch fixes this problem. llvm-svn: 372235
* Revert r372082 "[Clang] Pragma vectorize_width() implies vectorize(enable)"Hans Wennborg2019-09-182-30/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This broke the Chromium build. Consider the following code: float ScaleSumSamples_C(const float* src, float* dst, float scale, int width) { float fsum = 0.f; int i; #if defined(__clang__) #pragma clang loop vectorize_width(4) #endif for (i = 0; i < width; ++i) { float v = *src++; fsum += v * v; *dst++ = v * scale; } return fsum; } Compiling at -Oz, Clang now warns: $ clang++ -target x86_64 -Oz -c /tmp/a.cc /tmp/a.cc:1:7: warning: loop not vectorized: the optimizer was unable to perform the requested transformation; the transformation might be disabled or specified as part of an unsupported transformation ordering [-Wpass-failed=transform-warning] this suggests it's not actually enabling vectorization hard enough. At -Os it asserts instead: $ build.release/bin/clang++ -target x86_64 -Os -c /tmp/a.cc clang-10: /work/llvm.monorepo/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:2734: void llvm::InnerLoopVectorizer::emitMemRuntimeChecks(llvm::Loop*, llvm::BasicBlock*): Assertion ` !BB->getParent()->hasOptSize() && "Cannot emit memory checks when optimizing for size"' failed. Of course neither of these are what the developer expected from the pragma. > Specifying the vectorization width was supposed to implicitly enable > vectorization, except that it wasn't really doing this. It was only > setting the vectorize.width metadata, but not vectorize.enable. > > This should fix PR27643. > > Differential Revision: https://reviews.llvm.org/D66290 llvm-svn: 372225
* [mips] Pass "xgot" flag as a subtarget featureSimon Atanasyan2019-09-182-2/+12
| | | | | | | | | We need "xgot" flag in the MipsAsmParser to implement correct expansion of some pseudo instructions in case of using 32-bit GOT (XGOT). MipsAsmParser does not have reference to MipsSubtarget but has a reference to "feature bit set". llvm-svn: 372220
* [X86] Prevent assertion when calling a function that returns double with ↵Craig Topper2019-09-181-0/+20
| | | | | | | | -mno-sse2 on x86-64. As seen in the most recent updates to PR10498 llvm-svn: 372197
* [ARM] Update clang for removal of vfp2d16 and vfp2d16spEli Friedman2019-09-172-23/+23
| | | | | | | | Matching fix for https://reviews.llvm.org/D67375 (r372186). Differential Revision: https://reviews.llvm.org/D67467 llvm-svn: 372187
* [Sema] Split of versions of -Wimplicit-{float,int}-conversion for ↵Erik Pilkington2019-09-172-1/+69
| | | | | | | | | | | | | Objective-C BOOL Also, add a diagnostic group, -Wobjc-signed-char-bool, to control all these related diagnostics. rdar://51954400 Differential revision: https://reviews.llvm.org/D67559 llvm-svn: 372183
* Ignore exception specifier mismatch when merging redeclarationsReid Kleckner2019-09-171-1/+28
| | | | | | | | | | | | | | | | | | Exception specifiers are now part of the function type in C++17. Normally, it is illegal to redeclare the same function or specialize a template with a different exception specifier, but under -fms-compatibility, we accept it with a warning. Without this change, the function types would not match due to the exception specifier, and clang would claim that the types were "incompatible". Now we emit the warning and merge the redeclaration as we would in C++14 and earlier. Fixes PR42842, which is about compiling _com_ptr_t in C++17. Based on a patch by Alex Fusco <alexfusco@google.com>! Differential Revision: https://reviews.llvm.org/D67590 llvm-svn: 372178
* Use 'BOOL' instead of BOOL in diagnostic messagesErik Pilkington2019-09-172-16/+16
| | | | | | Type names should be enclosed in single quotes. llvm-svn: 372152
* [OPENMP] Rework the test, NFC.Alexey Bataev2019-09-171-3/+1
| | | | llvm-svn: 372148
* [OPENMP5.0]Introduce attribute for declare variant directive.Alexey Bataev2019-09-173-0/+186
| | | | | | | | Added attribute for declare variant directive. It will allow to handle declare variant directive at the codegen and will allow to add extra checks. llvm-svn: 372147
* [OPENMP]Try to rework the test to pacify the buildbots, NFC.Alexey Bataev2019-09-171-8/+7
| | | | llvm-svn: 372130
* [NFC] Updated testDavid Bolvansky2019-09-171-7/+7
| | | | llvm-svn: 372095
* [Clang] Pragma vectorize_width() implies vectorize(enable)Sjoerd Meijer2019-09-172-9/+30
| | | | | | | | | | | | Specifying the vectorization width was supposed to implicitly enable vectorization, except that it wasn't really doing this. It was only setting the vectorize.width metadata, but not vectorize.enable. This should fix PR27643. Differential Revision: https://reviews.llvm.org/D66290 llvm-svn: 372082
* [RISCV] Add option aliases: -mcmodel=medany and -mcmodel=medlowKito Cheng2019-09-171-0/+10
| | | | | | | | | | | | | | RISC-V GCC use -mcmodel=medany and -mcmodel=medlow, but LLVM use -mcmodel=small and -mcmodel=medium. Add those two option aliases for provide same user interface between GCC and LLVM. Reviewed By: lenary Differential Revision: https://reviews.llvm.org/D67066 llvm-svn: 372080
* [RISCV] Define __riscv_cmodel_medlow and __riscv_cmodel_medany correctlyKito Cheng2019-09-171-0/+20
| | | | | | | | | | | | | | RISC-V LLVM was only implement small/medlow code model, so it defined __riscv_cmodel_medlow directly without check. Now, we have medium/medany code model in RISC-V back-end, it should define according the actually code model. Reviewed By: lewis-revill Differential Revision: https://reviews.llvm.org/D67065 llvm-svn: 372078
* Fix reliance on -flax-vector-conversions in AVX intrinsics headers andRichard Smith2019-09-173-14/+14
| | | | | | corresponding tests. llvm-svn: 372063
* Fix reliance on lax vector conversions in tests for x86 intrinsics.Richard Smith2019-09-178-15/+15
| | | | llvm-svn: 372062
* Remove reliance on lax vector conversions from altivec.h in VSX mode.Richard Smith2019-09-174-4/+21
| | | | llvm-svn: 372061
* Push lambda scope earlier when transforming lambda expressionNicholas Allegra2019-09-171-0/+15
| | | | | | Differential Revision: https://reviews.llvm.org/D66067 llvm-svn: 372058
* [OPENMP] Fix the test, NFCAlexey Bataev2019-09-171-3/+5
| | | | llvm-svn: 372055
* [OPENMP]Fix the test, NFC.Alexey Bataev2019-09-161-2/+3
| | | | llvm-svn: 372040
* [Modules][Objective-C] Use complete decl from module when diagnosing missing ↵Bruno Cardoso Lopes2019-09-165-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | import Summary: Otherwise the definition (first found) for ObjCInterfaceDecl's might precede the module one, which will eventually lead to crash, since diagnoseMissingImport needs one coming from a module. This behavior changed after Richard's r342018, which started to look into the definition of ObjCInterfaceDecls. rdar://problem/49237144 Reviewers: rsmith, arphaman Subscribers: jkorous, dexonsmith, ributzka, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D66982 llvm-svn: 372039
* do not emit -Wunused-macros warnings in -frewrite-includes mode (PR15614)Lubos Lunak2019-09-161-1/+4
| | | | | | | | | | | -frewrite-includes calls PP.SetMacroExpansionOnlyInDirectives() to avoid macro expansions that are useless in that mode, but this can lead to -Wunused-macros false positives. As -frewrite-includes does not emit normal warnings, block -Wunused-macros too. Differential Revision: https://reviews.llvm.org/D65371 llvm-svn: 372026
* [Clang][Codegen] Disable arm_acle.c test.Roman Lebedev2019-09-161-0/+2
| | | | | | | | | | This test is broken by design. Clang codegen tests should not depend on llvm middle-end behaviour, they should *only* test clang codegen. Yet this test runs whole optimization pipeline. I've really tried to fix it, but there isn't just a few things that depend on passes, but everything there does. llvm-svn: 372015
* [Clang][Codegen] Relax available-externally-suppress.c testRoman Lebedev2019-09-161-2/+0
| | | | | | | | | That test is broken by design. It depends on llvm middle-end behavior. No clang codegen test should be doing that. This one is salvageable by relaxing check lines. llvm-svn: 372014
* [OPENMP]Fix parsing/sema for function templates with declare simd.Alexey Bataev2019-09-161-0/+9
| | | | | | | | Need to return original declaration group with FunctionTemplateDecl, not the inner FunctionDecl, to correctly handle parsing of directives with the templates parameters. llvm-svn: 372011
* Change signature of __builtin_rotateright64 back to unsignedKarl-Johan Karlsson2019-09-161-0/+4
| | | | | | | | | | | | | | | | The signature of __builtin_rotateright64 was by misstake changed from unsigned to signed in r360863, this patch will change it back to unsigned as intended. This fixes pr43309 Reviewers: efriedma, hans Reviewed By: hans Differential Revision: https://reviews.llvm.org/D67606 llvm-svn: 371969
* [Diagnostics] Added silence note for -Wsizeof-array-div; suggest extra parensDavid Bolvansky2019-09-141-3/+20
| | | | llvm-svn: 371924
* [Driver] Fix multiple bugs related to dependency file options: -M -MM -MD ↵Fangrui Song2019-09-141-4/+22
| | | | | | | | | | | -MMD -MT -MQ -M -o test.i => dependency file is test.d, not test.i -MM -o test.i => dependency file is test.d, not test.i -M -MMD => bogus warning -Wunused-command-line-argument -M MT dummy => -w not rendered llvm-svn: 371918
* [Driver] Improve Clang::getDependencyFileName and its tests after rC371853Fangrui Song2019-09-143-26/+17
| | | | | | | The test file name metadata-with-dots.c is confusing because -MD and -MMD have nothing to do with metadata. llvm-svn: 371917
* [WebAssembly] Narrowing and widening SIMD opsThomas Lively2019-09-131-0/+76
| | | | | | | | | | | | | | | | Summary: Implements target-specific LLVM intrinsics and clang builtins for these new SIMD operations, as described at https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#integer-to-integer-narrowing. Reviewers: aheejin Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D67425 llvm-svn: 371906
* Make test check position independent as they sometimes come out reversed. NFCI.Douglas Yung2019-09-131-2/+2
| | | | llvm-svn: 371904
* [clang-scan-deps] Fix for headers having the same name as a directoryAlex Lorenz2019-09-133-0/+25
| | | | | | | | | | | | Scan deps tool crashes when called on a C++ file, containing an include that has the same name as a directory. The tool crashes since it finds foo/dir and tries to read that as a file and fails. Patch by: kousikk (Kousik Kumar) Differential Revision: https://reviews.llvm.org/D67091 llvm-svn: 371903
* Fix test to use %t for newly created files.Tim Shen2019-09-131-5/+5
| | | | | | | | This is both for consistency with other `mkdir`s in tests, and fixing permission issues with the non-temporary cwd during testing (they are not always writable). llvm-svn: 371897
* [OPENMP5.0]Add basic support for declare variant directive.Alexey Bataev2019-09-132-0/+317
| | | | | | | Added basic support for declare variant directive and its match clause with user context selector. llvm-svn: 371892
* Reland r371785: Add -Wpoison-system-directories warningManoj Gupta2019-09-136-0/+29
| | | | | | | | | | | | | | | | | | | | When using clang as a cross-compiler, we should not use system headers to do the compilation. This CL adds support of a new warning flag -Wpoison-system-directories which emits warnings if --sysroot is set and headers from common host system location are used. By default the warning is disabled. The intention of the warning is to catch bad includes which are usually generated by third party build system not targeting cross-compilation. Such cases happen in Chrome OS when someone imports a new package or upgrade one to a newer version from upstream. This is reland of r371785 with a fix to test file. Patch by: denik (Denis Nikitin) llvm-svn: 371878
* [Sema][Typo Correction] Fix potential infite loop on ambiguity checksDavid Goldman2019-09-131-0/+29
| | | | | | | | | | | | | | | | | | | | | | Summary: This fixes a bug introduced in D62648, where Clang could infinite loop if it became stuck on a single TypoCorrection when it was supposed to be testing ambiguous corrections. Although not a common case, it could happen if there are multiple possible corrections with the same edit distance. The fix is simply to wipe the TypoExpr from the `TransformCache` so that the call to `TransformTypoExpr` doesn't use the `CachedEntry`. Reviewers: rsmith Subscribers: cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D67515 llvm-svn: 371859
* Fix depfile name constructionLuke Cheeseman2019-09-131-0/+11
| | | | | | | | | | | | | | - When using -o, the provided filename is using for constructing the depfile name (when -MMD is passed). - The logic looks for the rightmost '.' character and replaces what comes after with 'd'. - This works incorrectly when the filename has no extension and the directories have '.' in them (e.g. out.dir/test) - This replaces the funciton to just llvm::sys::path functionality Differential Revision: https://reviews.llvm.org/D67542 llvm-svn: 371853
* [Clang Interpreter] Initial patch for the constexpr interpreterNandor Licker2019-09-131-0/+11
| | | | | | | | | | | | | | | | | | Summary: This patch introduces the skeleton of the constexpr interpreter, capable of evaluating a simple constexpr functions consisting of if statements. The interpreter is described in more detail in the RFC. Further patches will add more features. Reviewers: Bigcheese, jfb, rsmith Subscribers: bruno, uenoku, ldionne, Tyker, thegameg, tschuett, dexonsmith, mgorny, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D64146 llvm-svn: 371834
* For PR17164: split -fno-lax-vector-conversion into three differentRichard Smith2019-09-1325-51/+93
| | | | | | | | | | | | | | | | | | | | | levels: -- none: no lax vector conversions [new GCC default] -- integer: only conversions between integer vectors [old GCC default] -- all: all conversions between same-size vectors [Clang default] For now, Clang still defaults to "all" mode, but per my proposal on cfe-dev (2019-04-10) the default will be changed to "integer" as soon as that doesn't break lots of testcases. (Eventually I'd like to change the default to "none" to match GCC and general sanity.) Following GCC's behavior, the driver flag -flax-vector-conversions is translated to -flax-vector-conversions=integer. This reinstates r371805, reverted in r371813, with an additional fix for lldb. llvm-svn: 371817
* Fix interaction between r371813 and r371814.Richard Smith2019-09-131-3/+3
| | | | llvm-svn: 371816
* Remove reliance on lax vector conversions from altivec.h and its test.Richard Smith2019-09-131-13/+13
| | | | llvm-svn: 371814
* Revert "For PR17164: split -fno-lax-vector-conversion into three different"Jonas Devlieghere2019-09-1324-90/+48
| | | | | | | This breaks the LLDB build. I tried reaching out to Richard, but haven't gotten a reply yet. llvm-svn: 371813
* For PR17164: split -fno-lax-vector-conversion into three differentRichard Smith2019-09-1324-48/+90
| | | | | | | | | | | | | | | | | | levels: -- none: no lax vector conversions [new GCC default] -- integer: only conversions between integer vectors [old GCC default] -- all: all conversions between same-size vectors [Clang default] For now, Clang still defaults to "all" mode, but per my proposal on cfe-dev (2019-04-10) the default will be changed to "integer" as soon as that doesn't break lots of testcases. (Eventually I'd like to change the default to "none" to match GCC and general sanity.) Following GCC's behavior, the driver flag -flax-vector-conversions is translated to -flax-vector-conversions=integer. llvm-svn: 371805
* Revert r371785.Manoj Gupta2019-09-136-27/+0
| | | | | | r371785 is causing fails on clang-hexagon-elf buildbots. llvm-svn: 371799
* Add -Wpoison-system-directories warningManoj Gupta2019-09-126-0/+27
| | | | | | | | | | | | | | | | | | When using clang as a cross-compiler, we should not use system headers to do the compilation. This CL adds support of a new warning flag -Wpoison-system-directories which emits warnings if --sysroot is set and headers from common host system location are used. By default the warning is disabled. The intention of the warning is to catch bad includes which are usually generated by third party build system not targeting cross-compilation. Such cases happen in Chrome OS when someone imports a new package or upgrade one to a newer version from upstream. Patch by: denik (Denis Nikitin) llvm-svn: 371785
* [analyzer] Fix the 'analyzer-enabled-checkers.c' test on non-linux machines.Artem Dergachev2019-09-121-2/+1
| | | | | | | | '-Xclang -triple' doesn't seem to override the default target triple as reliably as '--target'. This leads to test failing due to platform-specific checks getting unexpectedly enabled. llvm-svn: 371781
* Improve code generation for thread_local variables:Richard Smith2019-09-125-48/+80
| | | | | | | | | | | | | | | | | | | | | Summary: * Don't bother using a thread wrapper when the variable is known to have constant initialization. * Emit the thread wrapper as discardable-if-unused in TUs that don't contain a definition of the thread_local variable. * Don't emit the thread wrapper at all if the thread_local variable is unused and discardable; it will be emitted by all TUs that need it. Reviewers: rjmccall, jdoerfert Subscribers: cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D67429 llvm-svn: 371767
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