[Bug tree-optimization/50204] [4.5/4.6/4.7 Regression] Missed fully redundant load found in crafty (SPEC 2k)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50204

--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-11 11:57:28 UTC ---
Author: rguenth
Date: Tue Oct 11 11:57:23 2011
New Revision: 179799

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179799
Log:
2011-10-11  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/50204
    * tree-ssa-alias.c (get_continuation_for_phi_1): Split out
    two argument handling from ...
    (get_continuation_for_phi): ... here.  Handle arbitrary number
    of PHI args.

    * gcc.dg/tree-ssa/ssa-fre-36.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-36.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c