http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56098
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-25 20:04:01 UTC --- Author: jakub Date: Fri Jan 25 20:03:54 2013 New Revision: 195475 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195475 Log: PR tree-optimization/56098 * tree-ssa-phiopt.c (nt_init_block): Don't call add_or_mark_expr for stmts with volatile ops. (cond_store_replacement): Don't optimize if assign has volatile ops. (cond_if_else_store_replacement_1): Don't optimize if either then_assign or else_assign have volatile ops. (hoist_adjacent_loads): Don't optimize if either def1 or def2 have volatile ops. * gcc.dg/pr56098-1.c: New test. * gcc.dg/pr56098-2.c: New test. Added: trunk/gcc/testsuite/gcc.dg/pr56098-1.c trunk/gcc/testsuite/gcc.dg/pr56098-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-phiopt.c
