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| author | David Majnemer <david.majnemer@gmail.com> | 2015-02-13 07:55:47 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-02-13 07:55:47 +0000 |
| commit | abc482effcabd373f5c96fb8f9dd493968a112dd (patch) | |
| tree | 2b1eb59e9ebf337925c18d2ad7537c0d60995c27 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 2a903b900d212dfaf5482408042a6f7b9e87c9a6 (diff) | |
| download | bcm5719-llvm-abc482effcabd373f5c96fb8f9dd493968a112dd.tar.gz bcm5719-llvm-abc482effcabd373f5c96fb8f9dd493968a112dd.zip | |
MS ABI: Implement /volatile:ms
The /volatile:ms semantics turn volatile loads and stores into atomic
acquire and release operations. This distinction is important because
volatile memory operations do not form a happens-before relationship
with non-atomic memory. This means that a volatile store is not
sufficient for implementing a mutex unlock routine.
Differential Revision: http://reviews.llvm.org/D7580
llvm-svn: 229082
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
| -rw-r--r-- | clang/lib/Frontend/CompilerInvocation.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index c1ad805420f..ee671681b48 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -477,6 +477,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, OPT_fno_data_sections, false); Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); + Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); + Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); |
