https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85720
--- Comment #7 from bin cheng <amker at gcc dot gnu.org> --- Author: amker Date: Fri May 25 11:09:42 2018 New Revision: 260753 URL: https://gcc.gnu.org/viewcvs?rev=260753&root=gcc&view=rev Log: PR tree-optimization/85720 * tree-loop-distribution.c (break_alias_scc_partitions): Don't merge SCC if all partitions are builtins. (version_loop_by_alias_check): New parameter. Generate cancelable runtime alias check if all partitions are builtins. (distribute_loop): Update call to above function. gcc/testsuite * gcc.dg/tree-ssa/pr85720.c: New test. * gcc.target/i386/avx256-unaligned-store-2.c: Disable loop pattern distribution. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/pr85720.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.target/i386/avx256-unaligned-store-2.c trunk/gcc/tree-loop-distribution.c
