From: H.J. Lu <hongjiu.lu@intel.com>
Date: Thu, 8 Sep 2011 01:38:23 +0000 (-0400)
Subject: Simplify AVX check
X-Git-Tag: glibc-2.15~345
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08a300c956feeca7ccb9081f88701229da8e25c5;p=thirdparty%2Fglibc.git

Simplify AVX check
---

diff --git a/ChangeLog b/ChangeLog
index 3011a5abc39..0eb1acc7771 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-24  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Simplify
+	AVX check.
+
 2011-09-07  Ulrich Drepper  <drepper@gmail.com>
 
 	* sysdeps/unix/sysv/linux/x86_64/init-first.c
diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S
index 258c60945a4..6523c92945a 100644
--- a/sysdeps/x86_64/dl-trampoline.S
+++ b/sysdeps/x86_64/dl-trampoline.S
@@ -149,10 +149,7 @@ L(have_avx):
 	// Get XFEATURE_ENABLED_MASK
 	xgetbv
 	andl	$0x6, %eax
-	cmpl	$0x6, %eax
-	// Nonzero if SSE and AVX state saving is enabled.
-	sete	%al
-2:	leal	-1(%eax,%eax), %eax
+2:	subl	$0x5, %eax
 	movl	%eax, L(have_avx)(%rip)
 	cmpl	$0, %eax