[Bug middle-end/37236] [4.3 Regression] ICE: in mark_operand_necessary, at tree-ssa-dce.c:242

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

------- Comment #14 from rguenth at gcc dot gnu dot org  2008-09-20 15:41 -------
Subject: Bug 37236

Author: rguenth
Date: Sat Sep 20 15:40:15 2008
New Revision: 140515

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140515
Log:
2008-09-20  Richard Guenther  <rguenther@suse.de>

        Backport from mainline:
        2008-08-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/37236
        * tree-ssa-structalias.c (intra_create_variable_infos): Mark
        PARAM_NOALIAS tags with is_heapvar.
        * tree-ssa-operands.c (access_can_touch_variable): Offset
        based tests do not apply for heapvars.  Fix offset test.

        * gfortran.fortran-torture/compile/pr37236.f: New testcase.

Added:
   
branches/gcc-4_3-branch/gcc/testsuite/gfortran.fortran-torture/compile/pr37236.f
Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_3-branch/gcc/tree-ssa-operands.c
    branches/gcc-4_3-branch/gcc/tree-ssa-structalias.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37236