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IF(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
IF(CMAKE_COMPILER_IS_GNUCC AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
include(CheckCXXSourceCompiles)
CHECK_CXX_SOURCE_COMPILES("
#define CRC32CX(crc, value) __asm__(\"crc32cx %w[c], %w[c], %x[v]\":[c]\"+r\"(crc):[v]\"r\"(value))
asm(\".arch_extension crc\");
unsigned int foo(unsigned int ret) {
CRC32CX(ret, 0);
return ret;
}
int main() { foo(0); }" HAVE_ARMV8_CRC)
CHECK_CXX_SOURCE_COMPILES("
asm(\".arch_extension crypto\");
unsigned int foo(unsigned int ret) {
__asm__(\"pmull v2.1q, v2.1d, v1.1d\");
return ret;
}
int main() { foo(0); }" HAVE_ARMV8_CRYPTO)
CHECK_C_COMPILER_FLAG(-march=armv8-a+crc+crypto HAVE_ARMV8_CRC_CRYPTO_INTRINSICS)
IF(HAVE_ARMV8_CRC_CRYPTO_INTRINSICS)
SET(ARMV8_CRC_COMPILE_FLAGS "${ARMV8_CRC_COMPILE_FLAGS} -march=armv8-a+crc+crypto")
ENDIF()
SET(CRC32_LIBRARY crc32_armv8_neon)
ADD_SUBDIRECTORY(extra/crc32_armv8_neon)
ENDIF()
ENDIF()
IF(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64")
SET(HAVE_CRC32_VPMSUM 1)
SET(CRC32_LIBRARY crc32-vpmsum)
ADD_SUBDIRECTORY(extra/crc32-vpmsum)
ENDIF()
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