diff options
| 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/Driver/ToolChains.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/Driver/ToolChains.cpp')
| -rw-r--r-- | clang/lib/Driver/ToolChains.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp index 11ded7cd5eb..902338b2884 100644 --- a/clang/lib/Driver/ToolChains.cpp +++ b/clang/lib/Driver/ToolChains.cpp @@ -4208,6 +4208,10 @@ CudaToolChain::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, Linux::addClangTargetOptions(DriverArgs, CC1Args); CC1Args.push_back("-fcuda-is-device"); + if (DriverArgs.hasFlag(options::OPT_fcuda_flush_denormals_to_zero, + options::OPT_fno_cuda_flush_denormals_to_zero, false)) + CC1Args.push_back("-fcuda-flush-denormals-to-zero"); + if (DriverArgs.hasArg(options::OPT_nocudalib)) return; |
