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| author | H.J. Lu <hjl.tools@gmail.com> | 2014-03-14 08:51:25 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2014-03-14 08:51:25 -0700 |
| commit | aa4de9cea5c07d43caeaca9722c2d417e9a2919c (patch) | |
| tree | ad0d817c67581c5c0e5b54d0e3213b361075485e /sysdeps/x86_64/configure | |
| parent | 2e03fae7b711b87733f8c897cb42ea74d2dc156a (diff) | |
| download | glibc-aa4de9cea5c07d43caeaca9722c2d417e9a2919c.tar.gz glibc-aa4de9cea5c07d43caeaca9722c2d417e9a2919c.tar.xz glibc-aa4de9cea5c07d43caeaca9722c2d417e9a2919c.zip | |
Check AVX-512 assembler support first
It checks AVX-512 assembler support first and sets libc_cv_cc_avx512 to $libc_cv_asm_avx512, instead of yes. GCC won't support AVX-512 if assembler doesn't support it. * sysdeps/x86_64/configure.ac: Check AVX-512 assembler support first. Disable AVX-512 GCC support if assembler doesn't support it. * sysdeps/x86_64/configure: Regenerated.
Diffstat (limited to 'sysdeps/x86_64/configure')
| -rw-r--r-- | sysdeps/x86_64/configure | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure index b931e682ea..c1c88c8619 100644 --- a/sysdeps/x86_64/configure +++ b/sysdeps/x86_64/configure @@ -95,32 +95,6 @@ fi config_vars="$config_vars config-cflags-avx = $libc_cv_cc_avx" -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support" >&5 -$as_echo_n "checking for AVX512 support... " >&6; } -if ${libc_cv_cc_avx512+:} false; then : - $as_echo_n "(cached) " >&6 -else - if { ac_try='${CC-cc} -mavx512f -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_avx512=yes -else - libc_cv_cc_avx512=no -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx512" >&5 -$as_echo "$libc_cv_cc_avx512" >&6; } -if test $libc_cv_cc_avx512 = yes; then - $as_echo "#define HAVE_AVX512_SUPPORT 1" >>confdefs.h - -fi -config_vars="$config_vars -config-cflags-avx512 = $libc_cv_cc_avx512" - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support in assembler" >&5 $as_echo_n "checking for AVX512 support in assembler... " >&6; } if ${libc_cv_asm_avx512+:} false; then : @@ -148,6 +122,32 @@ if test $libc_cv_asm_avx512 == yes; then fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support" >&5 +$as_echo_n "checking for AVX512 support... " >&6; } +if ${libc_cv_cc_avx512+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -mavx512f -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 $ac_status = 0; }; }; then : + libc_cv_cc_avx512=$libc_cv_asm_avx512 +else + libc_cv_cc_avx512=no +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx512" >&5 +$as_echo "$libc_cv_cc_avx512" >&6; } +if test $libc_cv_cc_avx512 = yes; then + $as_echo "#define HAVE_AVX512_SUPPORT 1" >>confdefs.h + +fi +config_vars="$config_vars +config-cflags-avx512 = $libc_cv_cc_avx512" + { $as_echo "$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 : |