https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84419
--- Comment #7 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- Author: rsandifo Date: Tue Feb 20 14:44:24 2018 New Revision: 257847 URL: https://gcc.gnu.org/viewcvs?rev=257847&root=gcc&view=rev Log: Fix incorrect TARGET_MEM_REF alignment (PR 84419) expand_call_mem_ref checks for TARGET_MEM_REFs that have compatible type, but it didn't then go on to install the specific type we need, which might have different alignment due to: if (TYPE_ALIGN (type) != align) type = build_aligned_type (type, align); This was causing masked stores to be incorrectly marked as aligned on AVX512. 2018-02-20 Richard Sandiford <richard.sandif...@linaro.org> gcc/ PR tree-optimization/84419 * internal-fn.c (expand_call_mem_ref): Create a TARGET_MEM_REF with the required type if its current type is compatible but different. gcc/testsuite/ PR tree-optimization/84419 * gcc.dg/vect/pr84419.c: New test. Added: trunk/gcc/testsuite/gcc.dg/vect/pr84419.c Modified: trunk/gcc/ChangeLog trunk/gcc/internal-fn.c trunk/gcc/testsuite/ChangeLog
