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Fix T51051: Incorrect render on 32bit Linux 

The issue was apparently caused by -fno-finite-math-only added to kernel.cpp
CFLAGS. For now just removed this flag from the kernel (we don't really want
it there at this point, and we don't have it for SSE/AVX optimized kernels).

But surely more investigation is needed here.
This commit is contained in:
Sergey Sharybin 2017-03-30 11:23:26 +02:00
parent 9b1564a862
commit ced8fff5de
Notes: blender-bot 2023-02-14 19:45:25 +01:00 
Referenced by issue #51154, Decline in performance, an increase of over 209% in the rendering
Referenced by issue #51051, Cycles renders missing/semitransparent faces on Tails OS
2 changed files with 8 additions and 0 deletions
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5
intern/cycles/CMakeLists.txt
View File

@ -22,6 +22,7 @@ if(WITH_CYCLES_NATIVE_ONLY)
-DWITH_KERNEL_NATIVE
)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native")
set(CYCLES_KERNEL_FLAGS "-march=native")
elseif(NOT WITH_CPU_SSE)
set(CXX_HAS_SSE FALSE)
set(CXX_HAS_AVX FALSE)
@ -59,10 +60,13 @@ elseif(WIN32 AND MSVC)
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Ox")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /Ox")
set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /Ox")
set(CYCLES_KERNEL_FLAGS "/fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
elseif(CMAKE_COMPILER_IS_GNUCC)
check_cxx_compiler_flag(-msse CXX_HAS_SSE)
check_cxx_compiler_flag(-mavx CXX_HAS_AVX)
check_cxx_compiler_flag(-mavx2 CXX_HAS_AVX2)
set(CYCLES_KERNEL_FLAGS "-ffast-math")
if(CXX_HAS_SSE)
set(CYCLES_SSE2_KERNEL_FLAGS "-ffast-math -msse -msse2 -mfpmath=sse")
set(CYCLES_SSE3_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -mfpmath=sse")
@ -79,6 +83,7 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
check_cxx_compiler_flag(-msse CXX_HAS_SSE)
check_cxx_compiler_flag(-mavx CXX_HAS_AVX)
check_cxx_compiler_flag(-mavx2 CXX_HAS_AVX2)
set(CYCLES_KERNEL_FLAGS "-ffast-math")
if(CXX_HAS_SSE)
set(CYCLES_SSE2_KERNEL_FLAGS "-ffast-math -msse -msse2")
set(CYCLES_SSE3_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3")

3
intern/cycles/kernel/CMakeLists.txt
View File

@ -347,6 +347,9 @@ endif()
include_directories(${INC})
include_directories(SYSTEM ${INC_SYS})
set_source_files_properties(kernels/cpu/kernel.cpp PROPERTIES COMPILE_FLAGS "${CYCLES_KERNEL_FLAGS}")
set_source_files_properties(kernels/cpu/kernel_split.cpp PROPERTIES COMPILE_FLAGS "${CYCLES_KERNEL_FLAGS}")
if(CXX_HAS_SSE)
list(APPEND SRC
kernels/cpu/kernel_sse2.cpp