backport: [multiple changes]

backport: [multiple changes]

2014-02-25  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2014-02-21  Richard Biener  <rguenther@suse.de>

	PR middle-end/60291
	* tree-ssa-live.c (mark_all_vars_used_1): Do not walk
	DECL_INITIAL for globals not in the current function context.

	2014-02-20  Richard Biener  <rguenther@suse.de>

	PR middle-end/60221
	* tree-eh.c (execute_cleanup_eh_1): Also cleanup empty EH
	regions at -O0.

	2014-02-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/60183
	* tree-ssa-phiprop.c (propagate_with_phi): Avoid speculating
	loads.
	(tree_ssa_phiprop): Calculate and free post-dominators.

	* gcc.dg/torture/pr60183.c: New testcase.

From-SVN: r208118