From 107b2fa56c15572ae56fb4ed18b50b58aff39b7f Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 26 Aug 2010 22:12:16 -0700 Subject: [PATCH] Shorten x86-64 strlen a bit. --- sysdeps/x86_64/strlen.S | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/sysdeps/x86_64/strlen.S b/sysdeps/x86_64/strlen.S index 7880c1d..ee94377 100644 --- a/sysdeps/x86_64/strlen.S +++ b/sysdeps/x86_64/strlen.S @@ -1,7 +1,6 @@ /* strlen(str) -- determine the length of the string STR. Copyright (C) 2009, 2010 Free Software Foundation, Inc. Contributed by Ulrich Drepper . - Modified by Intel Corporation. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -85,22 +84,19 @@ L(exit_less16): L(exit16): sub %rdi, %rax bsf %rdx, %rdx - add %rdx, %rax - add $16, %rax + lea 16(%rdx), %rax ret .p2align 4 L(exit32): sub %rdi, %rax bsf %rdx, %rdx - add %rdx, %rax - add $32, %rax + lea 32(%rdx), %rax ret .p2align 4 L(exit48): sub %rdi, %rax bsf %rdx, %rdx - add %rdx, %rax - add $48, %rax + lea 48(%rdx), %rax ret END(strlen) libc_hidden_builtin_def (strlen) -- 2.7.4