[Bug tree-optimization/25737] ACATS c974001 c974013 hang with struct aliasing

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

------- Comment #42 from nemet at gcc dot gnu dot org  2007-06-20 18:19 -------
Subject: Bug 25737

Author: nemet
Date: Wed Jun 20 18:19:10 2007
New Revision: 125890

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125890
Log:
        PR tree-optimization/25737
        * tree.h (struct tree_struct_field_tag): Add new field alias_set.
        (SFT_NONADDRESSABLE_P, SFT_ALIAS_SET): New macros.
        * tree-flow.h (struct fieldoff): Add new field alias_set.
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Add new
        argument addressable_type.  Set alias_set of fieldoff.
        * tree-ssa-alias.c (create_sft): Add new argument alias_set.
        (create_overlap_variables_for): Pass alias_set from fieldoff to
        create_sft.
        * alias.c (get_alias_set): Use alias_set from SFT if set.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/alias.c
    trunk/gcc/tree-flow.h
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa-structalias.c
    trunk/gcc/tree.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25737