https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67781
--- Comment #15 from Thomas Preud'homme <thopre01 at gcc dot gnu.org> --- Author: thopre01 Date: Thu Jan 21 08:29:28 2016 New Revision: 232664 URL: https://gcc.gnu.org/viewcvs?rev=232664&root=gcc&view=rev Log: 2016-01-21 Thomas Preud'homme <thomas.preudho...@arm.com> Backport from mainline 2016-01-08 Thomas Preud'homme <thomas.preudho...@arm.com> gcc/ PR tree-optimization/67781 * tree-ssa-math-opts.c (find_bswap_or_nop): Zero out bytes in cmpxchg and cmpnop in two steps: first the ones not accessed in original gimple expression in a endian independent way and then the ones not accessed in the final result in an endian-specific way. gcc/testsuite/ PR tree-optimization/67781 * gcc.c-torture/execute/pr67781.c: New file. Added: branches/gcc-5-branch/gcc/testsuite/gcc.c-torture/execute/pr67781.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/testsuite/ChangeLog branches/gcc-5-branch/gcc/tree-ssa-math-opts.c
