r149206 - in /trunk/gcc: ChangeLog ipa-pure-con...

[hubicka@gcc.gnu.org]

Author: hubicka
Date: Fri Jul  3 13:18:28 2009
New Revision: 149206

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149206
Log:
	* gcc.dg/tree-ssa/loop-24.c: Update dump file matching; enable -O2.
	* gcc.dg/tree-ssa/loop-25.c: Likewise.
	* gcc.dg/tree-ssa/loop-26.c: Likewise.
	* gcc.dg/tree-ssa/pr32044.c: Likewise.
	* gcc.dg/tree-ssa/loop-29.c: Likewise.
	* gcc.dg/tree-ssa/loop-10.c: Likewise.
	* gnat.dg/loop_optimization6.adb: Enable -O2.

	* ipa-pure-const.c (analyze): Update loop optimizer init.
	* tree-ssa-loop-iv-canon.c (empty_loop_p, remove_empty_loop,
	try_remove_empty_loop, remove_empty_loops): Remove.
	* tree-ssa-loop.c (tree_ssa_empty_loop, pass_empty_loop): Remove.
	* tree-ssa-dce.c (find_obviously_necessary_stmts): Use finiteness info
	to mark regular loops as neccesary.
	(degenerate_phi_p): New function.
	(propagate_necessity, remove_dead_phis): Use it.
	(forward_edge_to_pdom): Likewise.
	(eliminate_unnecessary_stmts): Take care to remove uses of results of
	virtual PHI nodes that became unreachable.
	(perform_tree_ssa_dce): Initialize/deinitialize loop optimizer.
	* tree-flow.h (remove_empty_loops): Remove.
	* passes.c (init_optimization_passes): Remove.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-pure-const.c
    trunk/gcc/passes.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-10.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-24.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-25.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-26.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-29.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr32044.c
    trunk/gcc/testsuite/gnat.dg/loop_optimization6.adb
    trunk/gcc/tree-flow.h
    trunk/gcc/tree-ssa-dce.c
    trunk/gcc/tree-ssa-loop-ivcanon.c
    trunk/gcc/tree-ssa-loop.c