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| author | Ulrich Drepper <drepper@redhat.com> | 2009-11-18 06:40:25 -0800 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-11-18 06:40:25 -0800 |
| commit | dfedb126d66fa4e9962e80d89233e00b521bf8bb (patch) | |
| tree | ff47ca9eb1aee1c368306eddff1c5cdc79ab0197 /nptl | |
| parent | dd7106b3c68328f7d4b3794e989e86cb0b0d6461 (diff) | |
| download | glibc-dfedb126d66fa4e9962e80d89233e00b521bf8bb.tar.gz glibc-dfedb126d66fa4e9962e80d89233e00b521bf8bb.tar.xz glibc-dfedb126d66fa4e9962e80d89233e00b521bf8bb.zip | |
Minor optimizations and cleanups of x86 cond_broadcast.
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/ChangeLog | 5 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S | 19 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S | 2 |
3 files changed, 15 insertions, 11 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 1991a4d5d5..a6acf8aafb 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,8 @@ +2009-11-18 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: Minor + optimizations and cleanups. + 2009-11-18 Dinakar Guniguntala <dino@in.ibm.com> * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S index 1a55e522d3..40fb04b31b 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2002,2003,2004,2006,2007,2009 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -138,13 +138,6 @@ __pthread_cond_broadcast: cfi_restore_state - .align 16 - /* Unlock. */ -4: LOCK - subl $1, cond_lock-cond_futex(%ebx) - jne 5f - jmp 6b - /* Initial locking failed. */ 1: #if cond_lock == 0 @@ -165,7 +158,13 @@ __pthread_cond_broadcast: call __lll_lock_wait jmp 2b - /* Unlock in loop requires waekup. */ + .align 16 + /* Unlock. */ +4: LOCK + subl $1, cond_lock-cond_futex(%ebx) + je 6b + + /* Unlock in loop requires wakeup. */ 5: leal cond_lock-cond_futex(%ebx), %eax #if (LLL_SHARED-LLL_PRIVATE) > 255 xorl %ecx, %ecx @@ -180,7 +179,7 @@ __pthread_cond_broadcast: call __lll_unlock_wake jmp 6b - /* Unlock in loop requires waekup. */ + /* Unlock in loop requires wakeup. */ 7: leal cond_lock-cond_futex(%ebx), %eax #if (LLL_SHARED-LLL_PRIVATE) > 255 xorl %ecx, %ecx diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S index ad42fb7c75..013fcc303f 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2002,2003,2004,2005,2007,2009 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. |