[Bug tree-optimization/38721] [alias-improvements] vectorizer miscompiles gfortran.fortran-torture/execute/elemental.f90 at -O3

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

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-01-08 12:29 -------
Subject: Bug 38721

Author: rguenth
Date: Thu Jan  8 12:29:46 2009
New Revision: 143185

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143185
Log:
2009-01-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38721
        * tree-into-ssa.c (pass_build_ssa): Add TODO_update_address_taken.
        * tree-pass.h (TODO_update_address_taken): New flag.
        * tree-ssa-loop.c (tree_ssa_loop_ivopts): Update address-taken.
        * tree-ssa.c (execute_update_addresses_taken): Optimize only when
        optimizing.
        (pass_update_address_taken): Just use TODO_update_address_taken.
        * tree-flow.h (execute_update_addresses_taken): Update prototype.
        * tree-cfg.c (verify_expr): Verify that stmt addresses-taken and
        function addressable-vars are conservatively correct.
        (verify_stmt): Initialize gsi of walk data.
        * tree-inline.c (optimize_inline_calls): Execute
        TODO_update_address_taken.
        (tree_function_versioning): Call execute_update_addresses_taken.
        * passes.c (execute_function_todo): Handle TODO_update_address_taken.
        (init_optimization_passes): Remove redundant update-address-taken pass
        after final inlining.
        * tree-parloops.c (parallelize_loops): Call
        execute_update_addresses_taken.
        * tree-vectorizer.c (vectorize_loops): Likewise.

Modified:
    branches/alias-improvements/gcc/ChangeLog.alias
    branches/alias-improvements/gcc/passes.c
    branches/alias-improvements/gcc/tree-cfg.c
    branches/alias-improvements/gcc/tree-flow.h
    branches/alias-improvements/gcc/tree-inline.c
    branches/alias-improvements/gcc/tree-into-ssa.c
    branches/alias-improvements/gcc/tree-parloops.c
    branches/alias-improvements/gcc/tree-pass.h
    branches/alias-improvements/gcc/tree-ssa-loop.c
    branches/alias-improvements/gcc/tree-ssa.c
    branches/alias-improvements/gcc/tree-vectorizer.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38721