From aa4de9cea5c07d43caeaca9722c2d417e9a2919c Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Fri, 14 Mar 2014 08:51:25 -0700
Subject: 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.
---
 sysdeps/x86_64/configure | 52 ++++++++++++++++++++++++------------------------
 1 file changed, 26 insertions(+), 26 deletions(-)

(limited to 'sysdeps/x86_64/configure')

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 :
-- 
cgit 1.4.1