------- Comment #2 from rguenth at gcc dot gnu dot org  2009-02-07 12:31 -------
Subject: Bug 39120

Author: rguenth
Date: Sat Feb  7 12:31:34 2009
New Revision: 144003

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=144003
Log:
2009-02-07  Richard Guenther  <rguent...@suse.de>

        PR tree-optimization/39120
        * tree-ssa-structalias.c (handle_rhs_call): Fill out return
        constraints.
        (handle_lhs_call): Process return constraints.  Add escape
        constraints if necessary.
        (handle_const_call): Fill out return constraints.  Make nested
        case more precise.  Avoid consttmp if possible.
        (handle_pure_call): Fill out return constraints.  Avoid
        callused if possible.
        (find_func_aliases): Simplify call handling.  Manually build
        nonlocal constraints for asm outputs.
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Add
        shortcut for const calls.  Properly use is_call_clobbered for
        non-const, non-pure calls.

        * gcc.c-torture/execute/pr39120.c: New testcase.

Added:
    branches/alias-improvements/gcc/testsuite/gcc.c-torture/execute/pr39120.c
Modified:
    branches/alias-improvements/gcc/ChangeLog.alias
    branches/alias-improvements/gcc/tree-ssa-alias.c
    branches/alias-improvements/gcc/tree-ssa-structalias.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39120

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