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authorUlrich Drepper <drepper@redhat.com>2008-01-22 18:22:07 +0000
committerUlrich Drepper <drepper@redhat.com>2008-01-22 18:22:07 +0000
commit3c7e0ea69a68fdf0e51edef1911c32b4d7bfa674 (patch)
tree0379f66fb16389c14d93e1624625fcde1fb49621 /nptl
parentf66def9d2bf7c87e39cc626d536ba10dfc0fa5ac (diff)
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(XADD): Use a scratch register.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h b/nptl/sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h
index 76d22c88f9..c7028360f5 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h
+++ b/nptl/sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2008 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
@@ -44,14 +44,16 @@
mov.l reg, mem; \
99: mov r1, r15
-#define XADD(reg, mem, old) \
+#define XADD(reg, mem, old, tmp) \
.align 2; \
mova 99f, r0; \
+ nop; \
mov r15, r1; \
- mov _IMM6, r15; \
+ mov _IMM8, r15; \
98: mov.l mem, old; \
- add old, reg; \
- mov.l reg, mem; \
+ mov reg, tmp; \
+ add old, tmp; \
+ mov.l tmp, mem; \
99: mov r1, r15
#define XCHG(reg, mem, old) \