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-fno-math-errno -fno-trapping-math (#19552)

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Summary:
As suggested in https://github.com/pytorch/pytorch/pull/19152#discussion_r275925767, this may give the compiler more opportunities for auto-vectorization
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19552

Differential Revision: D15048358

Pulled By: jamesr66a

fbshipit-source-id: db2c2c515c3e9f7d22305c039ab0c8a867fc43a2
This commit is contained in:
James Reed
2019-04-23 11:03:31 -07:00
committed by Facebook Github Bot
parent d8729efabe
commit 1b3967b491
1 changed files with 2 additions and 0 deletions
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2
CMakeLists.txt
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@ -309,6 +309,8 @@ if(NOT MSVC)
endif()
set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-omit-frame-pointer -O0")
set (CMAKE_LINKER_FLAGS_DEBUG "${CMAKE_STATIC_LINKER_FLAGS_DEBUG} -fno-omit-frame-pointer -O0")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-math-errno")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-trapping-math")
else()
foreach(flag_var
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE