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WASM-SIMD: port 2 patches from rreverser@'s tree

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* Stop on first found SIMD version
* Imply lower SSE version when higher is found

Change-Id: I9a4bf24eeebf6c87b6b50f5c969e7e36429b691d
This commit is contained in:
Ingvar Stepanyan 2020-11-20 11:58:39 +01:00 committed by Skal
parent 988b02abfd
commit 36c81ff6a9
1 changed files with 15 additions and 10 deletions
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25
cmake/cpu.cmake
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@ -67,20 +67,24 @@ foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
unset(WEBP_HAVE_${WEBP_SIMD_FLAG} CACHE)
cmake_push_check_state()
set(CMAKE_REQUIRED_FLAGS)
webp_check_compiler_flag(${WEBP_SIMD_FLAG} ${WEBP_ENABLE_SIMD})
if(NOT WEBP_HAVE_${WEBP_SIMD_FLAG})
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
if(EMSCRIPTEN)
set(SIMD_COMPILE_FLAG "-msimd128 ${SIMD_COMPILE_FLAG}")
endif()
set(CMAKE_REQUIRED_FLAGS ${SIMD_COMPILE_FLAG})
if(NOT simd_found)
webp_check_compiler_flag(${WEBP_SIMD_FLAG} ${WEBP_ENABLE_SIMD})
else()
if(MSVC)
if(NOT WEBP_HAVE_${WEBP_SIMD_FLAG})
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
if(EMSCRIPTEN)
set(SIMD_COMPILE_FLAG "-msimd128 ${SIMD_COMPILE_FLAG}")
endif()
set(CMAKE_REQUIRED_FLAGS ${SIMD_COMPILE_FLAG})
webp_check_compiler_flag(${WEBP_SIMD_FLAG} ${WEBP_ENABLE_SIMD})
else()
set(SIMD_COMPILE_FLAG " ")
if(MSVC)
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
else()
set(SIMD_COMPILE_FLAG " ")
endif()
endif()
elseif(${I_SIMD} LESS 2)
set(WEBP_HAVE_${WEBP_SIMD_FLAG} 1)
endif()
# Check which files we should include or not.
list(GET WEBP_SIMD_FILE_EXTENSIONS ${I_SIMD} WEBP_SIMD_FILE_EXTENSION)
@ -99,6 +103,7 @@ foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
list(APPEND WEBP_SIMD_FLAGS_TO_INCLUDE ${SIMD_COMPILE_FLAG})
endif()
endforeach()
set(simd_found 1)
else()
# Remove the file from the list.
foreach(FILE ${SIMD_FILES})