From: Richard Li Date: Mon, 25 Oct 2010 18:13:17 +0000 (-0400) Subject: Fix x86-64 strchr propagation of search byte into all bytes of SSE register X-Git-Tag: upstream/2.30~12635 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dbf3a06904168417a05882a871342e7a9ee3b383;p=external%2Fglibc.git Fix x86-64 strchr propagation of search byte into all bytes of SSE register --- diff --git a/ChangeLog b/ChangeLog index a363552..7b9f810 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2010-10-25 Ulrich Drepper + + [BZ #12159] + * sysdeps/x86_64/multiarch/strchr.S: Fix propagation of search byte + into all bytes of SSE register. + Patch by Richard Li . + 2010-10-24 Ulrich Drepper [BZ #12140] diff --git a/NEWS b/NEWS index 23f1e2d..30bbd4b 100644 --- a/NEWS +++ b/NEWS @@ -11,7 +11,7 @@ Version 2.13 3268, 7066, 10851, 11611, 11640, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979, 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, - 12113, 12140 + 12113, 12140, 12159 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark diff --git a/sysdeps/x86_64/multiarch/strchr.S b/sysdeps/x86_64/multiarch/strchr.S index 27eead9..71845a3 100644 --- a/sysdeps/x86_64/multiarch/strchr.S +++ b/sysdeps/x86_64/multiarch/strchr.S @@ -1,5 +1,5 @@ /* strchr with SSE4.2 - Copyright (C) 2009 Free Software Foundation, Inc. + Copyright (C) 2009, 2010 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -87,13 +87,13 @@ __strchr_sse42: pxor %xmm2, %xmm2 movd %esi, %xmm1 movl %edi, %ecx + pshufb %xmm2, %xmm1 andl $15, %ecx movq %rdi, %r8 je L(aligned_start) /* Handle unaligned string. */ andq $-16, %r8 - pshufb %xmm2, %xmm1 movdqa (%r8), %xmm0 pcmpeqb %xmm0, %xmm2 pcmpeqb %xmm1, %xmm0