common.opt (-ftree-forwprop, [...]): New options, enabled by default.

common.opt (-ftree-forwprop, [...]): New options, enabled by default.

2009-05-15  Richard Guenther  <rguenther@suse.de>

	* common.opt (-ftree-forwprop, -ftree-phiprop, -ftree-pta):
	New options, enabled by default.
	* doc/invoke.texi (-ftree-forwprop, -ftree-phiprop, -ftree-pta):
	Document.
	* tree-ssa-forwprop.c (gate_forwprop): Use flag_tree_forwprop.
	* tree-ssa-phiprop.c (gate_phiprop): Use flag_tree_phiprop.
	* tree-ssa-structalias.c (gate_tree_pta): New function.
	(pass_build_alias): Use it.

From-SVN: r147571