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Use LP_OP(cmp) and RCX_LP on dep_mutex pointer

This commit is contained in:
H.J. Lu 2012-05-15 10:20:15 -07:00
parent 289ac4352a
commit 30996e9369
2 changed files with 11 additions and 6 deletions
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5
nptl/ChangeLog
View File

@ -1,3 +1,8 @@
2012-05-15 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S: Use
LP_OP(cmp) and R8_LP on dep_mutex pointer.
2012-05-15 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/unix/sysv/linux/x86_64/cancellation.S: Use LP_OP(mov)

12
nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S
View File

@ -59,14 +59,14 @@ __pthread_cond_broadcast:
incl broadcast_seq-cond_futex(%rdi)
/* Get the address of the mutex used. */
movq dep_mutex-cond_futex(%rdi), %r8
mov dep_mutex-cond_futex(%rdi), %R8_LP
/* Unlock. */
LOCK
decl cond_lock-cond_futex(%rdi)
jne 7f
8: cmpq $-1, %r8
8: cmp $-1, %R8_LP
je 9f
/* Do not use requeue for pshared condvars. */
@ -128,7 +128,7 @@ __pthread_cond_broadcast:
#if cond_lock != 0
addq $cond_lock, %rdi
#endif
cmpq $-1, dep_mutex-cond_lock(%rdi)
LP_OP(cmp) $-1, dep_mutex-cond_lock(%rdi)
movl $LLL_PRIVATE, %eax
movl $LLL_SHARED, %esi
cmovne %eax, %esi
@ -140,7 +140,7 @@ __pthread_cond_broadcast:
/* Unlock in loop requires wakeup. */
5: addq $cond_lock-cond_futex, %rdi
cmpq $-1, dep_mutex-cond_lock(%rdi)
LP_OP(cmp) $-1, dep_mutex-cond_lock(%rdi)
movl $LLL_PRIVATE, %eax
movl $LLL_SHARED, %esi
cmovne %eax, %esi
@ -149,7 +149,7 @@ __pthread_cond_broadcast:
/* Unlock in loop requires wakeup. */
7: addq $cond_lock-cond_futex, %rdi
cmpq $-1, %r8
cmp $-1, %R8_LP
movl $LLL_PRIVATE, %eax
movl $LLL_SHARED, %esi
cmovne %eax, %esi
@ -158,7 +158,7 @@ __pthread_cond_broadcast:
jmp 8b
9: /* The futex requeue functionality is not available. */
cmpq $-1, %r8
cmp $-1, %R8_LP
movl $0x7fffffff, %edx
#ifdef __ASSUME_PRIVATE_FUTEX
movl $FUTEX_WAKE, %eax