https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78343
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Fri Nov 25 10:22:57 2016 New Revision: 242872 URL: https://gcc.gnu.org/viewcvs?rev=242872&root=gcc&view=rev Log: 2016-11-24 Richard Biener <rguent...@suse.de> PR tree-optimization/78343 * passes.def: Add CD-DCE pass after loop splitting. * tree-ssa-dce.c (find_obviously_necessary_stmts): Move SCEV init/finalize ... (perform_tree_ssa_dce): ... here. Deal with being executed inside the loop pipeline in aggressive mode. * gcc.dg/tree-ssa/sccp-2.c: New testcase. * gcc.dg/autopar/uns-outer-6.c: Adjust. * gcc.dg/tree-ssa/20030808-1.c: Likewise. * gcc.dg/tree-ssa/20040305-1.c: Likewise. * gcc.dg/vect/pr38529.c: Likewise. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/sccp-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/passes.def trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/autopar/uns-outer-6.c trunk/gcc/testsuite/gcc.dg/tree-ssa/20030808-1.c trunk/gcc/testsuite/gcc.dg/tree-ssa/20040305-1.c trunk/gcc/testsuite/gcc.dg/vect/pr38529.c trunk/gcc/tree-ssa-dce.c
