[Bug tree-optimization/58794] [4.8/4.9 Regression] ICE in set_lattice_value, at tree-ssa-ccp.c:455 on x86_64-linux-gnu (at -O1, -O2, and -O3)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58794

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 21 13:33:29 2013
New Revision: 203891

URL: http://gcc.gnu.org/viewcvs?rev=203891&root=gcc&view=rev
Log:
2013-10-21  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/58794
    * fold-const.c (operand_equal_p): Compare FIELD_DECL operand
    of COMPONENT_REFs with OEP_CONSTANT_ADDRESS_OF left in place.

    * c-c++-common/torture/pr58794-1.c: New testcase.
    * c-c++-common/torture/pr58794-2.c: Likewise.

Added:
    trunk/gcc/testsuite/c-c++-common/torture/pr58794-1.c
    trunk/gcc/testsuite/c-c++-common/torture/pr58794-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog