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| author | Justin Lebar <jlebar@google.com> | 2016-04-05 18:26:20 +0000 |
|---|---|---|
| committer | Justin Lebar <jlebar@google.com> | 2016-04-05 18:26:20 +0000 |
| commit | d3a44f68854e3e093662117621c607e3361716ec (patch) | |
| tree | 4cd3258de8a104f97c7b52f829c760cb563d6acf /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | f3bb6c51bca341aaa3af0f2e158184bd5bb04553 (diff) | |
| download | bcm5719-llvm-d3a44f68854e3e093662117621c607e3361716ec.tar.gz bcm5719-llvm-d3a44f68854e3e093662117621c607e3361716ec.zip | |
[CUDA] Add -fcuda-flush-denormals-to-zero.
Summary:
Setting this flag causes all functions are annotated with the
"nvvm-f32ftz" = "true" attribute.
In addition, we annotate the module with "nvvm-reflect-ftz" set
to 0 or 1, depending on whether -cuda-flush-denormals-to-zero is set.
This is read by the NVVMReflect pass.
Reviewers: tra, rnk
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D18671
llvm-svn: 265435
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
| -rw-r--r-- | clang/lib/Frontend/CompilerInvocation.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index 4d97b76d753..ba56665bc84 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -1571,6 +1571,9 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) Opts.CUDAHostDeviceConstexpr = 0; + if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) + Opts.CUDADeviceFlushDenormalsToZero = 1; + if (Opts.ObjC1) { if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { StringRef value = arg->getValue(); |
