diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 10 |
1 files changed, 4 insertions, 6 deletions
@@ -14498,8 +14498,6 @@ if ${pgac_cv_sse42_crc32_intrinsics_+:} false; then : else pgac_save_CFLAGS=$CFLAGS CFLAGS="$pgac_save_CFLAGS " -ac_save_c_werror_flag=$ac_c_werror_flag -ac_c_werror_flag=yes cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include <nmmintrin.h> @@ -14509,6 +14507,8 @@ main () unsigned int crc = 0; crc = _mm_crc32_u8(crc, 0); crc = _mm_crc32_u32(crc, 0); + /* return computed value, to prevent the above being optimized away */ + return crc == 0; ; return 0; } @@ -14520,7 +14520,6 @@ else fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext -ac_c_werror_flag=$ac_save_c_werror_flag CFLAGS="$pgac_save_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_sse42_crc32_intrinsics_" >&5 @@ -14538,8 +14537,6 @@ if ${pgac_cv_sse42_crc32_intrinsics__msse4_2+:} false; then : else pgac_save_CFLAGS=$CFLAGS CFLAGS="$pgac_save_CFLAGS -msse4.2" -ac_save_c_werror_flag=$ac_c_werror_flag -ac_c_werror_flag=yes cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include <nmmintrin.h> @@ -14549,6 +14546,8 @@ main () unsigned int crc = 0; crc = _mm_crc32_u8(crc, 0); crc = _mm_crc32_u32(crc, 0); + /* return computed value, to prevent the above being optimized away */ + return crc == 0; ; return 0; } @@ -14560,7 +14559,6 @@ else fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext -ac_c_werror_flag=$ac_save_c_werror_flag CFLAGS="$pgac_save_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_sse42_crc32_intrinsics__msse4_2" >&5 |