[Bf-blender-cvs] [afdd756e56] master: Cycles: Don't use fast math for the host code

[Sergey Sharybin]

Commit: afdd756e56e0cffb7ac5681749abdba6aa089309
Author: Sergey Sharybin
Date:   Thu Jan 19 14:48:43 2017 +0100
Branches: master
https://developer.blender.org/rBafdd756e56e0cffb7ac5681749abdba6aa089309

Cycles: Don't use fast math for the host code

This is important for the reliable behavior or isnan/isfinite/min/max
functions to work with nan and non-finite values. Some of the issues
with fast math are possible to work around, but didn't find a way to
have reliable min/max implementation yet.

===================================================================

M	intern/cycles/CMakeLists.txt

===================================================================

diff --git a/intern/cycles/CMakeLists.txt b/intern/cycles/CMakeLists.txt
index 97854a88e8..79c1c3e3e8 100644
--- a/intern/cycles/CMakeLists.txt
+++ b/intern/cycles/CMakeLists.txt
@@ -74,7 +74,6 @@ elseif(CMAKE_COMPILER_IS_GNUCC)
 	if(CXX_HAS_AVX2)
 		set(CYCLES_AVX2_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1 -mavx -mavx2 -mfma -mlzcnt -mbmi -mbmi2 -mf16c -mfpmath=sse")
 	endif()
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffast-math")
 elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
 	check_cxx_compiler_flag(-msse CXX_HAS_SSE)
 	check_cxx_compiler_flag(-mavx CXX_HAS_AVX)
@@ -90,7 +89,6 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
 	if(CXX_HAS_AVX2)
 		set(CYCLES_AVX2_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1 -mavx -mavx2 -mfma -mlzcnt -mbmi -mbmi2 -mf16c")
 	endif()
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffast-math")
 endif()
 
 if(CXX_HAS_SSE)