* sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally

	equivalent, but shorter instructions.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/swapcontext.S: Likewise.
	* sysdeps/unix/x86_64/sysdep.S: Likewise.
	* sysdeps/x86_64/strchr.S: Likewise.
	* sysdeps/x86_64/memset.S: Likewise.
	* sysdeps/x86_64/strcspn.S: Likewise.
	* sysdeps/x86_64/strcmp.S: Likewise.
	* sysdeps/x86_64/elf/start.S: Likewise.
	* sysdeps/x86_64/strspn.S: Likewise.
	* sysdeps/x86_64/dl-machine.h: Likewise.
	* sysdeps/x86_64/bsd-_setjmp.S: Likewise.
	* sysdeps/x86_64/bsd-setjmp.S: Likewise.
	* sysdeps/x86_64/strtok.S: Likewise.

ChangeLog

@@ -1,3 +1,23 @@
+2005-03-31  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally
+	equivalent, but shorter instructions.
+	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/setcontext.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/swapcontext.S: Likewise.
+	* sysdeps/unix/x86_64/sysdep.S: Likewise.
+	* sysdeps/x86_64/strchr.S: Likewise.
+	* sysdeps/x86_64/memset.S: Likewise.
+	* sysdeps/x86_64/strcspn.S: Likewise.
+	* sysdeps/x86_64/strcmp.S: Likewise.
+	* sysdeps/x86_64/elf/start.S: Likewise.
+	* sysdeps/x86_64/strspn.S: Likewise.
+	* sysdeps/x86_64/dl-machine.h: Likewise.
+	* sysdeps/x86_64/bsd-_setjmp.S: Likewise.
+	* sysdeps/x86_64/bsd-setjmp.S: Likewise.
+	* sysdeps/x86_64/strtok.S: Likewise.
+
 2005-03-30  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* sysdeps/ia64/fpu/e_acosf.S: Update from Intel libm 2005-03-21.

linuxthreads/ChangeLog

@@ -1,3 +1,8 @@
+2005-03-31  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Use
+	functionally equivalent, but shorter instructions.
+
 2005-03-28  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	* sysdeps/mips/tls.h: New file.

linuxthreads/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
 
@@ -45,7 +45,7 @@
     POPARGS_##args							      \
     /* The return value from CENABLE is argument for CDISABLE.  */	      \
     movq %rax, (%rsp);							      \
-    movq $SYS_ify (syscall_name), %rax;					      \
+    movl $SYS_ify (syscall_name), %eax;					      \
     syscall;								      \
     movq (%rsp), %rdi;							      \
     /* Save %rax since it's the error code from the syscall.  */	      \

nptl/ChangeLog

@@ -1,3 +1,25 @@
+2005-03-31  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S: Use
+	functionally equivalent, but shorter instructions.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S:
+	Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_once.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S:
+	Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Likewise.
+
 2005-03-28  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	* sysdeps/mips/Makefile: New file.

nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -48,12 +48,16 @@ __lll_mutex_lock_wait:
 
 	xorq	%r10, %r10	/* No timeout.  */
 	movl	$2, %edx
-	movq	%r10, %rsi	/* movq $FUTEX_WAIT, %rsi */
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 
 	cmpl	%edx, %eax	/* NB:	 %edx == 2 */
 	jne	2f
 
-1:	movq	$SYS_futex, %rax
+1:	movl	$SYS_futex, %eax
 	syscall
 
 2:	movl	%edx, %eax
@@ -93,15 +97,15 @@ __lll_mutex_timedlock_wait:
 1:
 	/* Get current time.  */
 	movq	%rsp, %rdi
-	xorq	%rsi, %rsi
+	xorl	%esi, %esi
 	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
 	/* This is a regular function call, all caller-save registers
 	   might be clobbered.  */
 	callq	*%rax
 
 	/* Compute relative timeout.  */
 	movq	8(%rsp), %rax
-	movq	$1000, %rdi
+	movl	$1000, %edi
 	mul	%rdi		/* Milli seconds to nano seconds.  */
 	movq	(%r13), %rdi
 	movq	8(%r13), %rsi
@@ -126,9 +130,13 @@ __lll_mutex_timedlock_wait:
 	je	8f
 
 	movq	%rsp, %r10
-	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 	movq	%r12, %rdi
-	movq	$SYS_futex, %rax
+	movl	$SYS_futex, %eax
 	syscall
 	movq	%rax, %rcx
 
@@ -195,9 +203,9 @@ __lll_mutex_unlock_wake:
 	pushq	%rdx
 
 	movl	$0, (%rdi)
-	movq	$FUTEX_WAKE, %rsi
+	movl	$FUTEX_WAKE, %esi
 	movl	$1, %edx	/* Wake one thread.  */
-	movq	$SYS_futex, %rax
+	movl	$SYS_futex, %eax
 	syscall
 
 	popq	%rdx
@@ -222,13 +230,13 @@ __lll_timedwait_tid:
 
 	/* Get current time.  */
 2:	movq	%rsp, %rdi
-	xorq	%rsi, %rsi
+	xorl	%esi, %esi
 	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
 	callq	*%rax
 
 	/* Compute relative timeout.  */
 	movq	8(%rsp), %rax
-	movq	$1000, %rdi
+	movl	$1000, %edi
 	mul	%rdi		/* Milli seconds to nano seconds.  */
 	movq	(%r13), %rdi
 	movq	8(%r13), %rsi
@@ -248,9 +256,13 @@ __lll_timedwait_tid:
 	jz	4f
 
 	movq	%rsp, %r10
-	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 	movq	%r12, %rdi
-	movq	$SYS_futex, %rax
+	movl	$SYS_futex, %eax
 	syscall
 
 	cmpl	$0, (%rdi)

nptl/sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -63,9 +63,14 @@ pthread_barrier_wait:
 
 	/* Wait for the remaining threads.  The call will return immediately
 	   if the CURR_EVENT memory has meanwhile been changed.  */
-7:	xorq	%rsi, %rsi		/* movq $FUTEX_WAIT, %rsi */
+7:
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 	xorq	%r10, %r10
-8:	movq	$SYS_futex, %rax
+8:	movl	$SYS_futex, %eax
 	syscall
 
 	/* Don't return on spurious wakeups.  The syscall does not change
@@ -110,8 +115,8 @@ pthread_barrier_wait:
 	/* Wake up all waiters.  The count is a signed number in the kernel
 	   so 0x7fffffff is the highest value.  */
 	movl	$0x7fffffff, %edx
-	movq	$FUTEX_WAKE, %rsi
-	movq	$SYS_futex, %rax
+	movl	$FUTEX_WAKE, %esi
+	movl	$SYS_futex, %eax
 	syscall
 
 	/* Increment LEFT.  If this brings the count back to the

nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -81,10 +81,10 @@ __pthread_cond_broadcast:
 	je	9f
 
 	/* Wake up all threads.  */
-	movq	$FUTEX_CMP_REQUEUE, %rsi
-	movq	$SYS_futex, %rax
+	movl	$FUTEX_CMP_REQUEUE, %esi
+	movl	$SYS_futex, %eax
 	movl	$1, %edx
-	movq	$0x7fffffff, %r10
+	movl	$0x7fffffff, %r10d
 	syscall
 
 	/* For any kind of error, which mainly is EAGAIN, we try again
@@ -128,9 +128,9 @@ __pthread_cond_broadcast:
 	jmp	8b
 
 9:	/* The futex requeue functionality is not available.  */
-	movq	$0x7fffffff, %rdx
-	movq	$FUTEX_WAKE, %rsi
-	movq	$SYS_futex, %rax
+	movl	$0x7fffffff, %edx
+	movl	$FUTEX_WAKE, %esi
+	movl	$SYS_futex, %eax
 	syscall
 	jmp	10b
 	.size	__pthread_cond_broadcast, .-__pthread_cond_broadcast

nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -66,9 +66,9 @@ __pthread_cond_signal:
 	addl	$1, (%rdi)
 
 	/* Wake up one thread.  */
-	movq	$FUTEX_WAKE, %rsi
-	movq	$SYS_futex, %rax
-	movq	$1, %rdx
+	movl	$FUTEX_WAKE, %esi
+	movl	$SYS_futex, %eax
+	movl	$1, %edx
 	syscall
 
 	/* Unlock.  */

nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -56,7 +56,7 @@ __pthread_cond_timedwait:
 .Lsubq:
 
 	cmpq	$1000000000, 8(%rdx)
-	movq	$EINVAL, %rax
+	movl	$EINVAL, %eax
 	jae	18f
 
 	/* Stack frame:
@@ -102,7 +102,7 @@ __pthread_cond_timedwait:
 
 	/* Unlock the mutex.  */
 2:	movq	16(%rsp), %rdi
-	xorq	%rsi, %rsi
+	xorl	%esi, %esi
 	callq	__pthread_mutex_unlock_usercnt
 
 	testl	%eax, %eax
@@ -141,7 +141,7 @@ __pthread_cond_timedwait:
 	/* Only clocks 0 and 1 are allowed so far.  Both are handled in the
 	   kernel.  */
 	leaq	24(%rsp), %rsi
-	movq	$__NR_clock_gettime, %rax
+	movl	$__NR_clock_gettime, %eax
 	syscall
 # ifndef __ASSUME_POSIX_TIMERS
 	cmpq	$-ENOSYS, %rax
@@ -155,13 +155,13 @@ __pthread_cond_timedwait:
 	subq	32(%rsp), %rdx
 #else
 	leaq	24(%rsp), %rdi
-	xorq	%rsi, %rsi
+	xorl	%esi, %esi
 	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
 	callq	*%rax
 
 	/* Compute relative timeout.  */
 	movq	32(%rsp), %rax
-	movq	$1000, %rdx
+	movl	$1000, %edx
 	mul	%rdx		/* Milli seconds to nano seconds.  */
 	movq	(%r13), %rcx
 	movq	8(%r13), %rdx
@@ -195,10 +195,14 @@ __pthread_cond_timedwait:
 	movl	%eax, (%rsp)
 
 	leaq	24(%rsp), %r10
-	xorq	%rsi, %rsi	/* movq $FUTEX_WAIT, %rsi */
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
 	movq	%r12, %rdx
 	addq	$cond_futex, %rdi
-	movq	$SYS_futex, %rax
+	movl	$SYS_futex, %eax
 	syscall
 	movq	%rax, %r14
 
@@ -237,7 +241,7 @@ __pthread_cond_timedwait:
 
 13:	incq	wakeup_seq(%rdi)
 	incl	cond_futex(%rdi)
-	movq	$ETIMEDOUT, %r14
+	movl	$ETIMEDOUT, %r14d
 	jmp	14f
 
 23:	xorq	%r14, %r14
@@ -256,8 +260,8 @@ __pthread_cond_timedwait:
 	jne	25f
 
 	addq	$cond_nwaiters, %rdi
-	movq	$SYS_futex, %rax
-	movq	$FUTEX_WAKE, %rsi
+	movl	$SYS_futex, %eax
+	movl	$FUTEX_WAKE, %esi
 	movl	$1, %edx
 	syscall
 	subq	$cond_nwaiters, %rdi
@@ -349,13 +353,13 @@ __pthread_cond_timedwait:
 #if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS
 	/* clock_gettime not available.  */
 19:	leaq	24(%rsp), %rdi
-	xorq	%rsi, %rsi
+	xorl	%esi, %esi
 	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
 	callq	*%rax
 
 	/* Compute relative timeout.  */
 	movq	32(%rsp), %rax
-	movq	$1000, %rdx
+	movl	$1000, %edx
 	mul	%rdx		/* Milli seconds to nano seconds.  */
 	movq	(%r13), %rcx
 	movq	8(%r13), %rdx