https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61607
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Jun 26 11:29:34 2014 New Revision: 212026 URL: https://gcc.gnu.org/viewcvs?rev=212026&root=gcc&view=rev Log: 2014-06-26 Richard Biener <rguent...@suse.de> PR tree-optimization/61607 * tree-ssa-copy.c (copy_prop_visit_phi_node): Adjust comment explaining why we restrict copies on loop depth. * tree-ssa-dom.c (cprop_operand): Remove restriction on on loop depth. (record_equivalences_from_phis): Instead add it here. * gcc.dg/tree-ssa/ssa-dom-thread-5.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-5.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-copy.c trunk/gcc/tree-ssa-dom.c