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Merge pull request #1597 from martin-frbg/cmake-avx512 

Check build system support for AVX512 instructions
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Martin Kroeker 2018-06-06 07:22:20 +02:00 committed by GitHub
parent ce6317f6c0 7fb62aed7e
commit a4af8861ff
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1 changed files with 9 additions and 0 deletions
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9
cmake/system_check.cmake
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@ -66,3 +66,12 @@ else()
set(BINARY32 1) set(BINARY32 1)
endif() endif()
if (X86_64 OR X86)
file(WRITE ${PROJECT_BINARY_DIR}/avx512.tmp "void main(void){ __asm__ volatile(\"vaddps %zmm1, %zmm0, %zmm0\"); }")
execute_process(COMMAND ${CMAKE_C_COMPILER} -v -o ${PROJECT_BINARY_DIR}/avx512.o -x c ${PROJECT_BINARY_DIR}/avx512.tmp RESULT_VARIABLE NO_AVX512)
if (NO_AVX512 EQUAL 1)
set (CCOMMON_OPT "${CCOMMON_OPT} -DNO_AVX512")
endif()
file(REMOVE "avx512.tmp" "avx512.o")
endif()