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authorAndreas Jaeger <aj@suse.de>2002-11-12 21:43:26 +0000
committerAndreas Jaeger <aj@suse.de>2002-11-12 21:43:26 +0000
commit6e14793db059304e39ec825c2f8adf2f6a140b22 (patch)
tree0c313a03b4b0e346dfb881b75787de679f9152ec /sysdeps/x86_64
parent44df0cea622127fe41496b9f7ff808501683e856 (diff)
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Update.
* sysdeps/x86_64/strchr.S: Don't use one register for two purposes, this fixes a bug noticed by test-strchr.c.
Diffstat (limited to 'sysdeps/x86_64')
-rw-r--r--sysdeps/x86_64/strchr.S12
1 files changed, 6 insertions, 6 deletions
diff --git a/sysdeps/x86_64/strchr.S b/sysdeps/x86_64/strchr.S
index 391f575..f862cb2 100644
--- a/sysdeps/x86_64/strchr.S
+++ b/sysdeps/x86_64/strchr.S
@@ -36,14 +36,14 @@ ENTRY (BP_SYM (strchr))
8-byte alignment guarantees that we never access illegal
memory if this would not also be done by the trivial
implementation (this is because all processor inherent
- boundaries are multiples of 8. */
+ boundaries are multiples of 8). */
- movq %rdi, %rcx
- andl $7, %ecx /* Mask alignment bits */
+ movq %rdi, %rdx
+ andl $7, %edx /* Mask alignment bits */
movq %rdi, %rax /* duplicate destination. */
jz 1f /* aligned => start loop */
- neg %ecx
- addl $8, %ecx /* Align to 8 bytes. */
+ neg %edx
+ addl $8, %edx /* Align to 8 bytes. */
/* Search the first bytes directly. */
0: movb (%rax), %cl /* load byte */
@@ -52,7 +52,7 @@ ENTRY (BP_SYM (strchr))
testb %cl,%cl /* is byte NUL? */
je 7f /* yes => return NULL */
incq %rax /* increment pointer */
- decl %ecx
+ decl %edx
jnz 0b