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authorUlrich Drepper <drepper@redhat.com>2009-06-05 16:54:50 -0700
committerUlrich Drepper <drepper@redhat.com>2009-06-05 16:54:50 -0700
commitb77c93232978db6506c75d708df851895ab3d48c (patch)
treee95b8c743e4d16983d0998211f5668c23e8d2fd5 /sysdeps/x86_64/rawmemchr.S
parent6f9eea15bf8d49d64ca1f3fd6d1a528c40f658a4 (diff)
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Add SSE4.2 optimized rawmemchr implementation for x86-64.
Diffstat (limited to 'sysdeps/x86_64/rawmemchr.S')
-rw-r--r--sysdeps/x86_64/rawmemchr.S7
1 files changed, 3 insertions, 4 deletions
diff --git a/sysdeps/x86_64/rawmemchr.S b/sysdeps/x86_64/rawmemchr.S
index c3bd771635..cfb4cebf68 100644
--- a/sysdeps/x86_64/rawmemchr.S
+++ b/sysdeps/x86_64/rawmemchr.S
@@ -34,19 +34,18 @@ ENTRY (rawmemchr)
pcmpeqb %xmm1, %xmm0
shl %cl, %esi
pmovmskb %xmm0, %ecx
- leaq 16(%rdi), %rdi
andl %esi, %ecx
jnz 1f
-2: movdqa (%rdi), %xmm0
+2: movdqa 16(%rdi), %xmm0
leaq 16(%rdi), %rdi
pcmpeqb %xmm1, %xmm0
pmovmskb %xmm0, %ecx
testl %ecx, %ecx
jz 2b
-1: bsfl %ecx, %ecx
- leaq -16(%rcx,%rdi), %rax
+1: bsfl %ecx, %eax
+ addq %rdi, %rax
ret
END (rawmemchr)