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(XADD): Use a scratch register.

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This commit is contained in:
Ulrich Drepper
2008-01-22 18:22:07 +00:00
parent f66def9d2b
commit 3c7e0ea69a
1 changed files with 7 additions and 5 deletions
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12
nptl/sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h
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@@ -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) \