diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index c7d01168814..4f56bb5062e 100644 --- a/configure.ac +++ b/configure.ac @@ -2088,11 +2088,15 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ # Check for ARMv8 CRC Extension intrinsics to do CRC calculations. # # First check if __crc32c* intrinsics can be used with the default compiler -# flags. If not, check if adding -march=armv8-a+crc flag helps. +# flags. If not, check if adding "-march=armv8-a+crc+simd" flag helps. +# On systems using soft-float ABI, "-march=armv8-a+crc" is required instead. # CFLAGS_CRC is set if the extra flag is required. PGAC_ARMV8_CRC32C_INTRINSICS([]) if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then - PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc]) + PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc+simd]) + if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then + PGAC_ARMV8_CRC32C_INTRINSICS([-march=armv8-a+crc]) + fi fi # Check for LoongArch CRC intrinsics to do CRC calculations. |