From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] setjmp cleanup
Date: Fri, 16 Feb 2001 04:28:48 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005155@msgid-missing> (raw)
Here is a patch to remove the unnecessary "loadrs" from setjmp.
--david
2001-02-15 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/__longjmp.S (__longjmp): No need to
do "loadrs". Writing to bspstore already takes care of
invalidating the "clean" partition.
Index: sysdeps/unix/sysv/linux/ia64/__longjmp.S
=================================RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/ia64/__longjmp.S,v
retrieving revision 1.1
diff -u -r1.1 __longjmp.S
--- __longjmp.S 2000/06/10 00:14:40 1.1
+++ __longjmp.S 2001/02/16 04:26:46
@@ -67,7 +67,6 @@
and r8=0x3f,r8
;;
cmp.lt pNeg,pPos=r8,r0
- dep r11=r0,r11,16,14 // clear ar.rsc.loadrs
mov r2=in0
;;
(pPos) mov r16=r8
@@ -117,7 +116,6 @@
ld8.nta r11=[r2],16 // ar.pfs
ld8.nta r22=[r3],56 // ar.lc
;;
- loadrs // invalidate stacked regs (must be first in insn group)
ld8.nta r24=[r2],32 // pr
mov b0=r16
;;
next reply other threads:[~2001-02-16 4:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-16 4:28 David Mosberger [this message]
2001-02-16 18:11 ` [Linux-ia64] setjmp cleanup Ulrich Drepper
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