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Do not use branch likely.

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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
This commit is contained in:
Andreas Jaeger
2002-02-07 10:39:07 +00:00
parent cd30b01ee9
commit a6049f98ed
5 changed files with 33 additions and 37 deletions
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11
sysdeps/unix/sysv/linux/mips/sys/tas.h
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@ -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)