Tiny strlen for x86-64 optimization.

I didn't remove an instruction from a previous version in the final version.
2009-06-04 10:54:29 -07:00 · 2009-06-04 10:54:29 -07:00 · 747785f2b3
parent 2f083d7511
commit 747785f2b3
2 changed files with 4 additions and 1 deletions
--- a/4
+++ b/4
@ -1,3 +1,7 @@
+2009-06-04  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/x86_64/strlen.S: Remove useless instruction.
+
 2009-06-02  H.J. Lu  <hongjiu.lu@intel.com>

 	* elf/Makefile (distribute): Add ifuncmain1.c, ifuncmain1pic.c,
--- a/sysdeps/x86_64/strlen.S
+++ b/sysdeps/x86_64/strlen.S
@ -34,7 +34,6 @@ ENTRY(strlen)
 	pcmpeqb	%xmm1, %xmm0
 	shl	%cl, %esi
 	pmovmskb %xmm0, %edx
-	xorl	%eax, %eax
 	negq	%r8
 	andl	%esi, %edx
 	jnz	1f