[Bug debug/54828] [4.6/4.7/4.8 Regression] ICE in based_loc_descr at dwarf2out.c:10560 with -g -O0

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54828

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-10-24 09:09:00 UTC ---
Author: jakub
Date: Wed Oct 24 09:08:56 2012
New Revision: 192759

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192759
Log:
    PR debug/54828
    * gimple.h (is_gimple_sizepos): New inline function.
    * gimplify.c (gimplify_one_sizepos): Use it.  Remove useless
    final assignment to expr variable.
    * tree.c (RETURN_TRUE_IF_VAR): Return true also if
    !TYPE_SIZES_GIMPLIFIED (type) and _t is going to be gimplified
    into a local temporary.

    * g++.dg/debug/pr54828.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/debug/pr54828.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple.h
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree.c