[src/trunk]: src/lib/libc/arch/arm/sys Thumbify & optimize a little

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

details:   https://anonhg.NetBSD.org/src/rev/4312395785b3
branches:  trunk
changeset: 789369:4312395785b3
user:      matt <matt%NetBSD.org@localhost>
date:      Fri Aug 16 22:27:32 2013 +0000

description:
Thumbify & optimize a little

diffstat:

 lib/libc/arch/arm/sys/__vfork14.S |  14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diffs (26 lines):

diff -r eaa06807feae -r 4312395785b3 lib/libc/arch/arm/sys/__vfork14.S
--- a/lib/libc/arch/arm/sys/__vfork14.S Fri Aug 16 22:21:59 2013 +0000
+++ b/lib/libc/arch/arm/sys/__vfork14.S Fri Aug 16 22:27:32 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: __vfork14.S,v 1.8 2013/08/01 05:54:24 matt Exp $       */
+/*     $NetBSD: __vfork14.S,v 1.9 2013/08/16 22:27:32 matt Exp $       */
 
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
@@ -44,10 +44,10 @@
        .align  0
 
 ENTRY(__vfork14)
-       mov     r2, r14
+       mov     r2, lr
        SYSTRAP(__vfork14)
-       bcs     CERROR
-       mov     r14, r2
-       sub     r1, r1, #1      /* r1 == 0xffffffff if parent, 0 if child */
-       and     r0, r0, r1      /* r0 == 0 if child, else unchanged */
-       RET
+       _INVOKE_CERROR()
+       subs    r1, r1, #1      /* r1 == 0xffffffff if parent, 0 if child */
+       ands    r0, r0, r1      /* r0 == 0 if child, else unchanged */
+       RETr(r2)
+END(__vfork14)