re PR tree-optimization/36009 (PRE causes missed loop store motion, store sinking doesn't work)
2008-05-15 Richard Guenther <rguenther@suse.de>
PR tree-optimization/36009
PR tree-optimization/36204
* tree-ssa-loop-im.c (tree-ssa-propagate.h): Include.
(determine_invariantness_stmt): Record the loop a store is
always executed in.
* Makefile.in (tree-ssa-loop-im.o): Add tree-ssa-propagate.h
dependency.
* gcc.dg/tree-ssa/ssa-lim-5.c: New testcase.
* gcc.dg/tree-ssa/ssa-lim-6.c: Likewise..