2.5-18.1

[jlayton/glibc.git] / sysdeps / i386 / i586 / rshift.S

diff --git a/sysdeps/i386/i586/rshift.S b/sysdeps/i386/i586/rshift.S
index db9326a442534450c16b4e710a5c509e2cbe9db0..7b88289d3e1f5eb3547ecb62d3b6fc74642eb41c 100644 (file)
--- 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