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Diffstat (limited to 'sysdeps/x86_64/configure.in')
| -rw-r--r-- | sysdeps/x86_64/configure.in | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure.in b/sysdeps/x86_64/configure.in index 94bcd19f3c..3a38740bf0 100644 --- a/sysdeps/x86_64/configure.in +++ b/sysdeps/x86_64/configure.in @@ -21,6 +21,13 @@ if test $libc_cv_cc_avx = yes; then AC_DEFINE(HAVE_AVX_SUPPORT) fi +dnl Check if -mavx -mprefer-avx128 works. +AC_CACHE_CHECK(-mavx -mprefer-avx128 support, libc_cv_cc_avx128, [dnl +LIBC_TRY_CC_OPTION([-mavx -mprefer-avx128], + [libc_cv_cc_avx128=yes], + [libc_cv_cc_avx128=no]) +]) + dnl Check if -msse2avx works. AC_CACHE_CHECK(for AVX encoding of SSE instructions, libc_cv_cc_sse2avx, [dnl LIBC_TRY_CC_OPTION([-msse2avx], |