[src/trunk]: src/common/lib/libc/arch/m68k/atomic Simplify the variants retur...

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

details:   https://anonhg.NetBSD.org/src/rev/d54f782a89d8
branches:  trunk
changeset: 326854:d54f782a89d8
user:      martin <martin%NetBSD.org@localhost>
date:      Thu Feb 20 16:33:23 2014 +0000

description:
Simplify the variants returning a bool

diffstat:

 common/lib/libc/arch/m68k/atomic/atomic_cas.S |  32 +++++++++++++-------------
 1 files changed, 16 insertions(+), 16 deletions(-)

diffs (59 lines):

diff -r b88fa8425ab1 -r d54f782a89d8 common/lib/libc/arch/m68k/atomic/atomic_cas.S
--- a/common/lib/libc/arch/m68k/atomic/atomic_cas.S     Thu Feb 20 15:52:30 2014 +0000
+++ b/common/lib/libc/arch/m68k/atomic/atomic_cas.S     Thu Feb 20 16:33:23 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: atomic_cas.S,v 1.8 2014/02/18 16:19:28 martin Exp $    */
+/*     $NetBSD: atomic_cas.S,v 1.9 2014/02/20 16:33:23 martin Exp $    */
 
 /*-
  * Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
@@ -68,11 +68,11 @@
        movl    12(%sp), %d1
        casl    %d3, %d1, (%a0)
        /* %d3 now contains the old value */
-       clrl    %d0     /* assume it did not work */
-       cmpl    %d3, %d2
-       bne     1f
-       movl    #1, %d0 /* return success */
-1:     rts
+       beq     1f
+       clrl    %d0     /* return false */
+       rts
+1:     movl    #1, %d0 /* return success */
+       rts
 END(__sync_bool_compare_and_swap_4)
 
 ENTRY(_atomic_cas_16)
@@ -94,11 +94,11 @@
        movw    10(%sp), %d1
        casw    %d3, %d1, (%a0)
        /* %d3 now contains the old value */
-       clrl    %d0     /* assume it did not work */
-       cmpw    %d3, %d2
-       bne     1f
-       movl    #1, %d0 /* return success */
-1:     rts
+       beq     1f
+       clrl    %d0     /* return failure */
+       rts
+1:     movl    #1, %d0 /* return success */
+       rts
 END(__sync_bool_compare_and_swap_2)
 
 ENTRY(_atomic_cas_8)
@@ -121,10 +121,10 @@
        movb    9(%sp), %d1
        casb    %d3, %d1, (%a0)
        /* %d3 now contains the old value */
-       clrl    %d0     /* assume it did not work */
-       cmpb    %d3, %d2
-       bne     1f
-       movl    #1, %d0 /* return success */
-1:     rts
+       beq     1f
+       clrl    %d0     /* return failure */
+       rts
+1:     movl    #1, %d0 /* return success */
+       rts
 END(__sync_bool_compare_and_swap_1)