diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2008-01-22 18:22:07 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2008-01-22 18:22:07 +0000 |
| commit | 3c7e0ea69a68fdf0e51edef1911c32b4d7bfa674 (patch) | |
| tree | 0379f66fb16389c14d93e1624625fcde1fb49621 | |
| parent | f66def9d2bf7c87e39cc626d536ba10dfc0fa5ac (diff) | |
| download | glibc-3c7e0ea69a68fdf0e51edef1911c32b4d7bfa674.tar.gz glibc-3c7e0ea69a68fdf0e51edef1911c32b4d7bfa674.tar.xz glibc-3c7e0ea69a68fdf0e51edef1911c32b4d7bfa674.zip | |
(XADD): Use a scratch register.
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h | 12 |
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) \ |