[Bug debug/49294] [4.7 Regression] ICE: in mem_loc_descriptor, at dwarf2out.c:14636 with -O -g

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49294

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-06-12 21:02:28 UTC ---
Author: jakub
Date: Mon Jun  6 17:14:31 2011
New Revision: 174712

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174712
Log:
    PR c++/49264
    * gimple-fold.c (fold_stmt_1): Don't try to fold *& on the lhs
    if stmt folded into nothing.
    * tree-inline.c (fold_marked_statements): If a builtin at the
    end of a bb folded into nothing, just update cgraph edges
    and move to next bb.
    * cgraph.c (cgraph_update_edges_for_call_stmt_node): Allow new_stmt
    to be NULL.  Don't compute count and frequency if new_call is NULL.

    * g++.dg/opt/pr49264.C: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/debug/pr49294.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c
    trunk/gcc/testsuite/ChangeLog