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authorAndreas Jaeger <aj@suse.de>2002-02-07 10:39:07 +0000
committerAndreas Jaeger <aj@suse.de>2002-02-07 10:39:07 +0000
commita6049f98edbe1bbcfe62c9b7bb80a8f783c0e2b0 (patch)
treedaefebc2ad33b01ce974909aef938cc96f68a98b /sysdeps/unix/sysv/linux/mips/sys/tas.h
parentcd30b01ee9cdefd2e6f81b1c25ee6897243706fc (diff)
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Do not use branch likely.
2002-02-05 H.J. Lu <hjl@gnu.org> * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Not use branch likely. * sysdeps/mips/pt-machine.h (testandset): Likewise. (__compare_and_swap): Likewise. >>>>>>> 1.469
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/sys/tas.h')
-rw-r--r--sysdeps/unix/sysv/linux/mips/sys/tas.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/sys/tas.h b/sysdeps/unix/sysv/linux/mips/sys/tas.h
index 339670894f..1bfbbcf2de 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/tas.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/tas.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Maciej W. Rozycki <macro@ds2.pg.gda.pl>, 2000.
@@ -42,17 +42,16 @@ _test_and_set (int *p, int v) __THROW
int r, t;
__asm__ __volatile__
- ("/* Inline test and set */\n\t"
- "ll %0,%3\n"
+ ("/* Inline test and set */\n"
"1:\n\t"
+ "ll %0,%3\n\t"
".set push\n\t"
".set noreorder\n\t"
"beq %0,%4,2f\n\t"
" move %1,%4\n\t"
+ ".set pop\n\t"
"sc %1,%2\n\t"
- "beqzl %1,1b\n\t"
- " ll %0,%3\n\t"
- ".set pop\n"
+ "beqz %1,1b\n"
"2:\n\t"
"/* End test and set */"
: "=&r" (r), "=&r" (t), "=m" (*p)