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arm.cmake
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arm.cmake
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include(CheckCSourceCompiles)
set(SAV_CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv8-a+crc+crypto")
CHECK_C_SOURCE_COMPILES(
"#include <arm_acle.h>
int main()
{
__crc32cb(0,0); __crc32ch(0,0); __crc32cw(0,0); __crc32cd(0,0);
return 0;
} " HAS_CRC32_ARM)
set(CMAKE_C_FLAGS ${SAV_CMAKE_C_FLAGS})
if(NOT HAS_CRC32_ARM)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv8-a+crc")
CHECK_C_SOURCE_COMPILES(
"#include <arm_acle.h>
int main()
{
__crc32cb(0,0); __crc32ch(0,0); __crc32cw(0,0); __crc32cd(0,0);
return 0;
} " HAS_CRC32_ARM_CRC)
set(CMAKE_C_FLAGS ${SAV_CMAKE_C_FLAGS})
endif()
if(HAS_CRC32_ARM_CRC OR HAS_CRC32_ARM)
if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL aarch64)
add_definitions(-D_HAS_CRC32_ARMV8)
else()
add_definitions(-D_HAS_CRC32_ARMV7)
endif()
endif()
if(HAS_CRC32_ARM_CRC)
set(CRC32_ARMV7_C_FLAGS "-march=armv8-a+crc")
elseif(HAS_CRC32_ARM)
set(CRC32_ARMV7_C_FLAGS "-march=armv8-a+crc+crypto")
endif()