Commit Graph

4 Commits

Author SHA1 Message Date
Yaxun Liu e1bfbc589f [HIP] Support -fcuda-flush-denormals-to-zero for amdgcn
Differential Revision: https://reviews.llvm.org/D48287

llvm-svn: 337639
2018-07-21 02:02:22 +00:00
Matthias Braun a451953224 CodeGenModule: Always output wchar_size, check LLVM assumptions.
Re-commit r303463 now that LLVM is fixed and adjust some lit tests.

llvm::TargetLibraryInfo needs to know the size of wchar_t to work on
functions like `wcslen`. This patch changes clang to always emit the
wchar_size module flag (it would only do so for ARM previously).
This also adds an `assert()` to ensure the LLVM defaults based on the
target triple are in sync with clang.

Differential Revision: https://reviews.llvm.org/D32982

llvm-svn: 303478
2017-05-20 01:29:55 +00:00
Justin Lebar 3b30b7eef6 [CUDA] Fix flush-denormals.cu test so that it checks what it intends to CHECK.
FileCheck does not evaluate plain CHECKs if you pass -check-prefix; you
have to ask for it explicitly.

llvm-svn: 269000
2016-05-10 00:34:50 +00:00
Justin Lebar d3a44f6885 [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
2016-04-05 18:26:20 +00:00