https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79737
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Tue Feb 28 22:39:11 2017 New Revision: 245795 URL: https://gcc.gnu.org/viewcvs?rev=245795&root=gcc&view=rev Log: PR tree-optimization/79737 * gimple-ssa-store-merging.c (encode_tree_to_bitpos): If bitlen is a multiple of BITS_PER_UNIT and !BYTES_BIG_ENDIAN, clear tmpbuf[byte_size - 1]. Call natice_encode_expr with byte_size - 1 instead of byte_size. Formatting fix. (shift_bytes_in_array_right): Formatting fix. * gcc.c-torture/execute/pr79737-1.c: New test. * gcc.c-torture/execute/pr79737-2.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/execute/pr79737-1.c trunk/gcc/testsuite/gcc.c-torture/execute/pr79737-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/gimple-ssa-store-merging.c trunk/gcc/testsuite/ChangeLog