[Bug tree-optimization/46383] [4.6 Regression] ICE: in get_binfo_at_offset, at tree.c:10947

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46383

--- Comment #3 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-11-11 
12:04:02 UTC ---
Author: jamborm
Date: Thu Nov 11 12:03:59 2010
New Revision: 166598

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166598
Log:
2010-11-11  Martin Jambor  <mjam...@suse.cz>

    PR tree-optimization/46383
    * ipa-prop.c (compute_complex_assign_jump_func): Ignore negative
    offsets.
    (compute_complex_ancestor_jump_func): Likewise.
    * tree.c (get_binfo_at_offset): Return NULL_TREE if offset is negative.

    * testsuite/g++.dg/torture/pr46383.C: New test.


Added:
    trunk/gcc/testsuite/g++.dg/torture/pr46383.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-prop.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree.c