[Bug debug/48466] [4.4/4.5 Regression] Wrong variable locations at -O0 on i686

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48466

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-04-07 
18:30:39 UTC ---
Author: jakub
Date: Thu Apr  7 18:30:36 2011
New Revision: 172118

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172118
Log:
    Backported from mainline
    2011-04-06  Jakub Jelinek  <ja...@redhat.com>

    PR debug/48466
    * dwarf2out.c (based_loc_descr): If drap_reg is INVALID_REGNUM, use
    as base_reg whatever register reg has been eliminated to, instead
    of hardcoding STACK_POINTER_REGNUM.

    * gcc.dg/guality/pr36977.c: New test.
    * gcc.dg/guality/pr48466.c: New test.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/guality/pr36977.c
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/guality/pr48466.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/dwarf2out.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog