From 534dfb536f19737f2642ee56dd67a97c5db6a74e Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Tue, 15 Apr 2008 08:23:19 +0000
Subject: amd64 string ops: replace some instructions by smaller ones, e.g.
 testb $0xff, %cl -> testb %cl, %cl

---
 libc/string/x86_64/memset.S | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'libc/string/x86_64/memset.S')

diff --git a/libc/string/x86_64/memset.S b/libc/string/x86_64/memset.S
index 0f054ade6..3092e81eb 100644
--- a/libc/string/x86_64/memset.S
+++ b/libc/string/x86_64/memset.S
@@ -53,15 +53,15 @@ ENTRY (memset)
 	imul	%rax,%r8
 #endif
 	test	$0x7,%edi	/* Check for alignment.  */
-	je	2f
+	jz	2f
 
 	.p2align 4
 1:	/* Align ptr to 8 byte.  */
 	mov	%sil,(%rcx)
 	dec	%rdx
 	inc	%rcx
-	test	$0x7,%ecx
-	jne	1b
+	test	$0x7,%cl
+	jnz	1b
 
 2:	/* Check for really large regions.  */
 	mov	%rdx,%rax
@@ -107,7 +107,7 @@ ENTRY (memset)
 	jne	8b
 9:
 #if BZERO_P
-	nop	/* huh?? */
+	/* nothing */
 #else
 	/* Load result (only if used as memset).  */
 	mov	%rdi,%rax	/* start address of destination is result */
-- 
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