2014-05-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61209
	* tree-ssa-sccvn.c (visit_phi): Avoid setting expr to VN_TOP.

	* gfortran.dg/pr61209.f90: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210613 138bc75d-0d04-0410-961f-82ee72b054a4
2014-05-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61221
	* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
	Do nothing for unreachable blocks.
	* tree-ssa-sccvn.c (cond_dom_walker::before_dom_children):
	Improve unreachability detection.

	* gcc.dg/torture/pr61221.c: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210614 138bc75d-0d04-0410-961f-82ee72b054a4
libitm: Enable aarch64

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210615 138bc75d-0d04-0410-961f-82ee72b054a4