https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68870
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Wed Dec 16 14:56:10 2015 New Revision: 231695 URL: https://gcc.gnu.org/viewcvs?rev=231695&root=gcc&view=rev Log: 2015-12-16 Richard Biener <rguent...@suse.de> PR tree-optimization/68870 * tree-cfgcleanup.c (cleanup_control_expr_graph): Add first_p parameter, if set only perform trivial constant folding. Queue other blocks with conditions for later processing. (cleanup_control_flow_bb): Add first_p parameter and pass it through. (cleanup_tree_cfg_1): Pass true for the first iteration cleanup_control_expr_graph. * gcc.dg/torture/pr68870.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/pr68870.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-cfgcleanup.c