* tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Remove
reassociation code.
* passes.c (init_optimization_passes): Run reassociation again
after loop optimizations.
* tree-ssa-dom.c (thread_across_edge): Canonicalize condition
if necessary.
(optimize_stmt): Ditto.
(canonicalize_comparison): New function.
* tree-ssa-operands.c (swap_tree_operands): Make external.
(get_expr_operands): Stop auto-canonicalization.
* tree-ssa-reassoc.c: Rewrite.
(init_optimization_passes):
* tree-flow.h (swap_tree_operands): Prototype.
* Makefile.in (tree-ssa-reassoc.o): Update dependencies.
* gcc.dg/tree-ssa/ssa-pre-2.c: Update due to reassociation changes.
* gcc.dg/tree-ssa/reassoc-1.c: Likewise.
* gcc.dg/tree-ssa/reassoc-2.c: Likewise.
* gcc.dg/tree-ssa/reassoc-3.c: Likewise.
* gcc.dg/tree-ssa/reassoc-4.c: Likewise.
* gcc.dg/tree-ssa/reassoc-5.c: New.
* gcc.dg/tree-ssa/reassoc-6.c: New.
* gcc.dg/tree-ssa/reassoc-7.c: New.
* gcc.dg/tree-ssa/reassoc-8.c: New.
* gcc.dg/tree-ssa/reassoc-9.c: New.
* gcc.dg/tree-ssa/reassoc-10.c: New.
* gcc.dg/tree-ssa/reassoc-11.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108425
138bc75d-0d04-0410-961f-
82ee72b054a4