[Bug tree-optimization/14784] [Tree-ssa] alias analysis deficiency

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

------- Comment #7 from rakdver at gcc dot gnu dot org  2006-10-24 00:12 -------
Subject: Bug 14784

Author: rakdver
Date: Tue Oct 24 00:12:16 2006
New Revision: 117986

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=117986
Log:
        PR tree-optimization/14784
        * tree-flow.h (struct var_ann_d): Add is_heapvar bit.
        * tree-ssa-structalias.c (get_constraint_for,
        intra_create_variable_infos): Set is_heapvar.
        * tree-ssa-operands.c (access_can_touch_variable): Do not handle
        non-heapvar pointer variables specially.

        * gcc.dg/alias-10.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/alias-10.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-flow.h
    trunk/gcc/tree-ssa-operands.c
    trunk/gcc/tree-ssa-structalias.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14784