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| author | H.J. Lu <hjl.tools@gmail.com> | 2012-10-02 16:48:34 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2012-10-11 06:01:01 -0700 |
| commit | 69bf858f681588d57c1b5d9d62a7951cda1549f6 (patch) | |
| tree | cd01f81bc73ecc540f144472b5fe42c1dbf24e12 /sysdeps/x86_64/configure | |
| parent | 54a417345edca0015e70e8b360b7f83ade5a7507 (diff) | |
| download | glibc-69bf858f681588d57c1b5d9d62a7951cda1549f6.tar.gz glibc-69bf858f681588d57c1b5d9d62a7951cda1549f6.tar.xz glibc-69bf858f681588d57c1b5d9d62a7951cda1549f6.zip | |
Compile AVX libm functions with -mavx -mprefer-avx128 hjl/avx128
Diffstat (limited to 'sysdeps/x86_64/configure')
| -rw-r--r-- | sysdeps/x86_64/configure | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure index 0fa0e1ecfa..4b48c65bcc 100644 --- a/sysdeps/x86_64/configure +++ b/sysdeps/x86_64/configure @@ -91,6 +91,26 @@ if test $libc_cv_cc_avx = yes; then fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking -mavx -mprefer-avx128 support" >&5 +$as_echo_n "checking -mavx -mprefer-avx128 support... " >&6; } +if ${libc_cv_cc_avx128+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -mavx -mprefer-avx128 -xc /dev/null -S -o /dev/null' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then : + libc_cv_cc_avx128=yes +else + libc_cv_cc_avx128=no +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx128" >&5 +$as_echo "$libc_cv_cc_avx128" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5 $as_echo_n "checking for AVX encoding of SSE instructions... " >&6; } if ${libc_cv_cc_sse2avx+:} false; then : |