https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82929
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Fri Nov 10 14:43:13 2017 New Revision: 254628 URL: https://gcc.gnu.org/viewcvs?rev=254628&root=gcc&view=rev Log: PR tree-optimization/82929 * gimple-ssa-store-merging.c (struct store_immediate_info): Add ops_swapped_p non-static data member. (store_immediate_info::store_immediate_info): Clear it. (imm_store_chain_info::coalesce_immediate_stores): If swapping ops set ops_swapped_p. (count_multiple_uses): Handle ops_swapped_p. * gcc.dg/pr82929.c: New test. * g++.dg/opt/pr82929.C: New test. Added: trunk/gcc/testsuite/g++.dg/opt/pr82929.C trunk/gcc/testsuite/gcc.dg/pr82929.c Modified: trunk/gcc/ChangeLog trunk/gcc/gimple-ssa-store-merging.c trunk/gcc/testsuite/ChangeLog