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| author | Richard Li <richardpku@gmail.com> | 2010-10-25 14:13:17 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2010-10-25 14:13:17 -0400 |
| commit | dbf3a06904168417a05882a871342e7a9ee3b383 (patch) | |
| tree | 55827c81876bdbd37b82c111a1fce74ca74e392a /sysdeps/x86_64 | |
| parent | fdc0f374bcd2d0513569aa8d600f960e43e8af1d (diff) | |
| download | glibc-dbf3a06904168417a05882a871342e7a9ee3b383.tar.gz glibc-dbf3a06904168417a05882a871342e7a9ee3b383.tar.xz glibc-dbf3a06904168417a05882a871342e7a9ee3b383.zip | |
Fix x86-64 strchr propagation of search byte into all bytes of SSE register
Diffstat (limited to 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strchr.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/strchr.S b/sysdeps/x86_64/multiarch/strchr.S index 27eead9852..71845a35fe 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 |