[src/trunk]: src/common/lib/libc/arch/arm/atomic use push/pop

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f5b58353f401
branches:  trunk
changeset: 789176:f5b58353f401
user:      matt <matt%NetBSD.org@localhost>
date:      Sat Aug 10 18:39:48 2013 +0000

description:
use push/pop

diffstat:

 common/lib/libc/arch/arm/atomic/atomic_add_64.S |  14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diffs (53 lines):

diff -r fb37946b9464 -r f5b58353f401 common/lib/libc/arch/arm/atomic/atomic_add_64.S
--- a/common/lib/libc/arch/arm/atomic/atomic_add_64.S   Sat Aug 10 18:39:25 2013 +0000
+++ b/common/lib/libc/arch/arm/atomic/atomic_add_64.S   Sat Aug 10 18:39:48 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: atomic_add_64.S,v 1.3 2012/09/13 00:36:12 matt Exp $   */
+/*     $NetBSD: atomic_add_64.S,v 1.4 2013/08/10 18:39:48 matt Exp $   */
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -33,15 +33,15 @@
 #ifdef _ARM_ARCH_6
 
 ENTRY_NP(_atomic_add_64)
-       str     r4, [sp, #-4]!          /* save temporary */
+       push    {r4}                    /* save temporary */
        mov     r4, r0                  /* need r0 for return value */
 #ifndef __ARM_EABI__
        mov     r3, r2
        mov     r2, r1
 #endif
 1:     ldrexd  r0, [r4]                /* load old value (to be returned) */
-       adds    NLO, LO, NLO            /* calculate new value */
-       adc     NHI, HI, NHI            /* calculate new value */
+       adds    NLO, NLO, LO            /* calculate new value */
+       adc     NHI, NHI, HI            /* calculate new value */
        strexd  ip, r2, [r4]            /* try to store */
        cmp     ip, #0                  /*   succeed? */
        bne     1b                      /*     no, try again */
@@ -50,13 +50,13 @@
 #else
        mcr     p15, 0, ip, c7, c10, 5  /* data memory barrier */
 #endif
-       ldr     r4, [sp], #4            /* restore temporary */
+       pop     {r4}                    /* restore temporary */
        RET                             /* return old value */
        END(_atomic_add_64)
 ATOMIC_OP_ALIAS(atomic_add_64,_atomic_add_64)
 
 ENTRY_NP(_atomic_add_64_nv)
-       str     r4, [sp, #-4]!          /* save temporary */
+       push    {r4}                    /* save temporary */
        mov     r4, r0                  /* need r0 for return value */
 #ifndef __ARM_EABI__
        mov     r3, r2
@@ -73,7 +73,7 @@
 #else
        mcr     p15, 0, ip, c7, c10, 5  /* data memory barrier */
 #endif
-       ldr     r4, [sp], #4            /* restore temporary */
+       pop     {r4}                    /* restore temporary */
        RET                             /* return new value */
        END(_atomic_add_64_nv)
 ATOMIC_OP_ALIAS(atomic_add_64_nv,_atomic_add_64_nv)