diff options
| -rwxr-xr-x | configure | 47 | ||||
| -rw-r--r-- | configure.ac | 8 |
2 files changed, 51 insertions, 4 deletions
diff --git a/configure b/configure index 0731e2a09d0..fce7df1ac83 100755 --- a/configure +++ b/configure @@ -18903,7 +18903,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext # 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_ARMV8_CRC32C is set if the extra flag is required. { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __crc32cb, __crc32ch, __crc32cw, and __crc32cd with CFLAGS=" >&5 $as_echo_n "checking for __crc32cb, __crc32ch, __crc32cw, and __crc32cd with CFLAGS=... " >&6; } @@ -18946,7 +18947,48 @@ if test x"$pgac_cv_armv8_crc32c_intrinsics_" = x"yes"; then fi if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __crc32cb, __crc32ch, __crc32cw, and __crc32cd with CFLAGS=-march=armv8-a+crc" >&5 + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __crc32cb, __crc32ch, __crc32cw, and __crc32cd with CFLAGS=-march=armv8-a+crc+simd" >&5 +$as_echo_n "checking for __crc32cb, __crc32ch, __crc32cw, and __crc32cd with CFLAGS=-march=armv8-a+crc+simd... " >&6; } +if ${pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrcpsimd+:} false; then : + $as_echo_n "(cached) " >&6 +else + pgac_save_CFLAGS=$CFLAGS +CFLAGS="$pgac_save_CFLAGS -march=armv8-a+crc+simd" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <arm_acle.h> +int +main () +{ +unsigned int crc = 0; + crc = __crc32cb(crc, 0); + crc = __crc32ch(crc, 0); + crc = __crc32cw(crc, 0); + crc = __crc32cd(crc, 0); + /* return computed value, to prevent the above being optimized away */ + return crc == 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrcpsimd=yes +else + pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrcpsimd=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +CFLAGS="$pgac_save_CFLAGS" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrcpsimd" >&5 +$as_echo "$pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrcpsimd" >&6; } +if test x"$pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrcpsimd" = x"yes"; then + CFLAGS_ARMV8_CRC32C="-march=armv8-a+crc+simd" + pgac_armv8_crc32c_intrinsics=yes +fi + + if test x"$pgac_armv8_crc32c_intrinsics" != x"yes"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __crc32cb, __crc32ch, __crc32cw, and __crc32cd with CFLAGS=-march=armv8-a+crc" >&5 $as_echo_n "checking for __crc32cb, __crc32ch, __crc32cw, and __crc32cd with CFLAGS=-march=armv8-a+crc... " >&6; } if ${pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrc+:} false; then : $as_echo_n "(cached) " >&6 @@ -18986,6 +19028,7 @@ if test x"$pgac_cv_armv8_crc32c_intrinsics__march_armv8_apcrc" = x"yes"; then pgac_armv8_crc32c_intrinsics=yes fi + fi fi diff --git a/configure.ac b/configure.ac index 685b13c9444..00b91ab2c3e 100644 --- a/configure.ac +++ b/configure.ac @@ -2244,11 +2244,15 @@ 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_ARMV8_CRC32C 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 AC_SUBST(CFLAGS_ARMV8_CRC32C) |