[Bug tree-optimization/47427] [4.6 Regression] ICE in process_constraint, at tree-ssa-structalias.c:2901

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47427

--- Comment #7 from Diego Novillo <dnovillo at gcc dot gnu.org> 2011-02-02 17:46:08 UTC ---
Author: dnovillo
Date: Wed Feb  2 17:46:04 2011
New Revision: 169577

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169577
Log:
    PR tree-optimization/47427
    PR tree-optimization/47428
    * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Don't
    coalesce if the new root var would be TREE_READONLY.

    * gcc.c-torture/compile/pr47427.c: New test.
    * gcc.c-torture/compile/pr47428.c: New test.

Added:
    branches/google/integration/gcc/testsuite/gcc.c-torture/compile/pr47427.c
    branches/google/integration/gcc/testsuite/gcc.c-torture/compile/pr47428.c
Modified:
    branches/google/integration/gcc/ChangeLog
    branches/google/integration/gcc/testsuite/ChangeLog
    branches/google/integration/gcc/tree-ssa-copyrename.c