https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89296
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Mon Feb 18 12:56:15 2019 New Revision: 268986 URL: https://gcc.gnu.org/viewcvs?rev=268986&root=gcc&view=rev Log: 2019-02-18 Richard Biener <rguent...@suse.de> PR tree-optimization/89296 * tree-ssa-loop-ch.c (ch_base::copy_headers): Restrict setting of no-warning flag to cases that might emit the bogus warning. * gcc.dg/uninit-pr89296.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/uninit-pr89296.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-loop-ch.c