From 28be6098c306bcfcffc1a0b356b76c95c20dfddf Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hongjiu.lu@intel.com>
Date: Wed, 17 Feb 2010 22:27:41 -0800
Subject: [PATCH] Simplify x86 strcmp-sse4 unwind info.

---
 ChangeLog                                 |  4 ++++
 sysdeps/i386/i686/multiarch/strcmp-sse4.S | 22 +++++++---------------
 2 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ab028f6..c8f89b8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2010-02-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/i386/i686/multiarch/strcmp-sse4.S: Simplify unwind info.
+
 2010-02-17  H.J. Lu  <hongjiu.lu@intel.com>
 	    Ulrich Drepper  <drepper@redhat.com>
 
diff --git a/sysdeps/i386/i686/multiarch/strcmp-sse4.S b/sysdeps/i386/i686/multiarch/strcmp-sse4.S
index e26f434..d5fd23e 100644
--- a/sysdeps/i386/i686/multiarch/strcmp-sse4.S
+++ b/sysdeps/i386/i686/multiarch/strcmp-sse4.S
@@ -40,6 +40,7 @@
 # endif
 # define STR1		4
 # define STR2		STR1+4
+# define RETURN		ret; .p2align 4
 #else
 # ifndef STRCMP
 #  define STRCMP	__strncmp_sse4_2
@@ -47,6 +48,7 @@
 # define STR1		8
 # define STR2		STR1+4
 # define CNT		STR2+4
+# define RETURN		POP (%ebp); ret; .p2align 4; CFI_PUSH (%ebp)
 #endif
 
 	.section .text.sse4.2,"ax",@progbits
@@ -223,6 +225,7 @@ L(crosspage):
 	add	$16, %esi
 	jmp	L(check_offset)
 
+	.p2align 4
 L(end):
 	jnc	L(ret)
 #ifdef USE_AS_STRNCMP
@@ -242,6 +245,7 @@ L(ret):
 #endif
 	ret
 
+	.p2align 4
 	cfi_restore_state
 #ifdef USE_AS_STRNCMP
 L(more16byteseq):
@@ -251,27 +255,15 @@ L(more16byteseq):
 #endif
 L(eq):
 	xorl	%eax, %eax
-#ifdef USE_AS_STRNCMP
-	POP	(%ebp)
-#endif
-	ret
+	RETURN
 
-#ifdef USE_AS_STRNCMP
-	CFI_PUSH (%ebp)
-#endif
 L(neq):
 	mov	$1, %eax
 	ja	L(neq_bigger)
 	neg	%eax
 L(neq_bigger):
-#ifdef USE_AS_STRNCMP
-	POP	(%ebp)
-#endif
-	ret
-	.p2align 4
-#ifdef USE_AS_STRNCMP
-	CFI_PUSH (%ebp)
-#endif
+	RETURN
+
 L(less16bytes):
 	add	$0xfefefeff, %ecx
 	jnc	L(less4bytes)
-- 
2.7.4