summaryrefslogtreecommitdiff
path: root/sysdeps/i386/i586/rshift.S
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /sysdeps/i386/i586/rshift.S
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadglibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
2.5-18.1
Diffstat (limited to 'sysdeps/i386/i586/rshift.S')
-rw-r--r--sysdeps/i386/i586/rshift.S37
1 files changed, 36 insertions, 1 deletions
diff --git a/sysdeps/i386/i586/rshift.S b/sysdeps/i386/i586/rshift.S
index db9326a442..7b88289d3e 100644
--- a/sysdeps/i386/i586/rshift.S
+++ b/sysdeps/i386/i586/rshift.S
@@ -1,5 +1,5 @@
/* Pentium optimized __mpn_rshift --
- Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1992,94,95,96,97,98,2000,2005 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
@@ -33,13 +33,21 @@ ENTRY (BP_SYM (__mpn_rshift))
ENTER
pushl %edi
+ cfi_adjust_cfa_offset (4)
pushl %esi
+ cfi_adjust_cfa_offset (4)
pushl %ebp
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebp, 0)
pushl %ebx
+ cfi_adjust_cfa_offset (4)
movl RES(%esp),%edi
+ cfi_rel_offset (edi, 12)
movl S(%esp),%esi
+ cfi_rel_offset (esi, 8)
movl SIZE(%esp),%ebx
+ cfi_rel_offset (ebx, 0)
movl CNT(%esp),%ecx
#if __BOUNDED_POINTERS__
shll $2, %ebx /* convert limbs to bytes */
@@ -64,9 +72,11 @@ L(normal):
xorl %eax,%eax
shrdl %cl,%edx,%eax /* compute carry limb */
pushl %eax /* push carry limb onto stack */
+ cfi_adjust_cfa_offset (4)
decl %ebx
pushl %ebx
+ cfi_adjust_cfa_offset (4)
shrl $3,%ebx
jz L(end)
@@ -110,6 +120,7 @@ L(oop): movl 28(%edi),%eax /* fetch destination cache line */
jnz L(oop)
L(end): popl %ebx
+ cfi_adjust_cfa_offset (-4)
andl $7,%ebx
jz L(end2)
L(oop2):
@@ -127,11 +138,20 @@ L(end2):
movl %edx,(%edi) /* store it */
popl %eax /* pop carry limb */
+ cfi_adjust_cfa_offset (-4)
popl %ebx
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (ebx)
popl %ebp
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (ebp)
popl %esi
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (esi)
popl %edi
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (edi)
LEAVE
ret
@@ -141,6 +161,11 @@ L(end2):
function is documented to work for overlapping source and destination.
*/
+ cfi_adjust_cfa_offset (16)
+ cfi_rel_offset (edi, 12)
+ cfi_rel_offset (esi, 8)
+ cfi_rel_offset (ebp, 4)
+ cfi_rel_offset (ebx, 0)
L(special):
leal -4(%edi,%ebx,4),%edi
leal -4(%esi,%ebx,4),%esi
@@ -150,6 +175,7 @@ L(special):
decl %ebx
pushl %ebx
+ cfi_adjust_cfa_offset (4)
shrl $3,%ebx
shrl $1,%edx
@@ -199,6 +225,7 @@ L(Loop):
L(Lend):
popl %ebx
+ cfi_adjust_cfa_offset (-4)
sbbl %eax,%eax /* save carry in %eax */
andl $7,%ebx
jz L(Lend2)
@@ -223,9 +250,17 @@ L(L1): movl %edx,(%edi) /* store last limb */
rcrl $1,%eax
popl %ebx
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (ebx)
popl %ebp
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (ebp)
popl %esi
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (esi)
popl %edi
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (edi)
LEAVE
ret