[Bug tree-optimization/38745] [4.4 Regression] ICE: statement makes a memory store, but has no VDEFS

[rguenth at gcc dot gnu dot org]

------- Comment #17 from rguenth at gcc dot gnu dot org  2009-01-26 09:55 -------
Subject: Bug 38745

Author: rguenth
Date: Mon Jan 26 09:55:30 2009
New Revision: 143673

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143673
Log:
2009-01-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38745
        * tree-ssa.c (execute_update_addresses_taken): Do not include
        variables that cannot possibly be a register in not_reg_needs.
        Do not clear TREE_ADDRESSABLE on vars that may not become
        registers.
        * tree-ssa.c (update_alias_info_1): Include those in the set
        of addressable vars.

        * g++.dg/torture/pr38745.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr38745.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38745