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Added LV_HAVE_AVX512 to CMakeLists

This commit is contained in:
Xavier Arteaga 2017-09-25 13:07:01 +02:00
parent 7aa33c1f27
commit 2b775462f7
2 changed files with 46 additions and 5 deletions
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5
CMakeLists.txt
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@ -282,6 +282,11 @@ if(CMAKE_C_COMPILER_ID MATCHES "GNU" OR CMAKE_C_COMPILER_ID MATCHES "Clang")
endif(HAVE_AVX)
endif (HAVE_AVX2)
if (HAVE_AVX512)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mavx512f -DLV_HAVE_AVX512")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx512f -DLV_HAVE_AVX512")
endif(HAVE_AVX512)
if(NOT ${CMAKE_BUILD_TYPE} STREQUAL "Debug")
if(HAVE_SSE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Ofast -funroll-loops")

46
cmake/modules/FindSSE.cmake
View File

@ -4,10 +4,11 @@
include(CheckCSourceRuns)
option(ENABLE_SSE "Enable compile-time SSE4.1 support." ON)
option(ENABLE_AVX "Enable compile-time AVX support." ON)
option(ENABLE_AVX2 "Enable compile-time AVX2 support." ON)
option(ENABLE_FMA "Enable compile-time FMA support." ON)
option(ENABLE_SSE "Enable compile-time SSE4.1 support." ON)
option(ENABLE_AVX "Enable compile-time AVX support." ON)
option(ENABLE_AVX2 "Enable compile-time AVX2 support." ON)
option(ENABLE_FMA "Enable compile-time FMA support." ON)
option(ENABLE_AVX512 "Enable compile-time AVX512 support." ON)
if (ENABLE_SSE)
#
@ -135,6 +136,41 @@ if (ENABLE_SSE)
endif()
endif()
if (ENABLE_AVX512)
#
# Check compiler for AVX intrinsics
#
if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG )
set(CMAKE_REQUIRED_FLAGS "-mavx512f")
check_c_source_runs("
#include <immintrin.h>
int main()
{
__m512i a, b, c;
const int src[16] = { 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8 , 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF};
int dst[16];
a = _mm512_loadu_si512( (__m512i*)src );
b = _mm512_loadu_si512( (__m512i*)src );
c = _mm512_add_epi32( a, b );
_mm512_storeu_si512( (__m512i*)dst, c );
int i = 0;
for( i = 0; i < 16; i++ ){
if( ( src[i] + src[i] ) != dst[i] ){
return -1;
}
}
return 0;
}"
HAVE_AVX512)
endif()
if (HAVE_AVX512)
message(STATUS "AVX512 is enabled - target CPU must support it")
endif()
endif()
endif()
mark_as_advanced(HAVE_SSE, HAVE_AVX, HAVE_AVX2, HAVE_FMA)
mark_as_advanced(HAVE_SSE, HAVE_AVX, HAVE_AVX2, HAVE_FMA, HAVE_AVX512)