diff options
Diffstat (limited to 'sysdeps/x86_64/configure.ac')
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index b7d2c0124f..cdaba0c075 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -25,6 +25,15 @@ if test $libc_cv_cc_avx512 = yes; then fi LIBC_CONFIG_VAR([config-cflags-avx512], [$libc_cv_cc_avx512]) +dnl Check if -mprefer-vector-width=128 works. +AC_CACHE_CHECK(-mprefer-vector-width=128, libc_cv_cc_mprefer_vector_width, [dnl +LIBC_TRY_CC_OPTION([-mprefer-vector-width=128], + [libc_cv_cc_mprefer_vector_width=yes], + [libc_cv_cc_mprefer_vector_width=no]) +]) +LIBC_CONFIG_VAR([config-cflags-mprefer-vector-width], + [$libc_cv_cc_mprefer_vector_width]) + dnl Check whether asm supports Intel MPX AC_CACHE_CHECK(for Intel MPX support, libc_cv_asm_mpx, [dnl cat > conftest.s <<\EOF |