https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68528
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Mon Sep 18 13:14:45 2017 New Revision: 252926 URL: https://gcc.gnu.org/viewcvs?rev=252926&root=gcc&view=rev Log: 2017-09-18 Richard Biener <rguent...@suse.de> Backport from mainline 2017-04-10 Richard Biener <rguent...@suse.de> PR middle-end/80362 * fold-const.c (fold_binary_loc): Look at unstripped ops when looking for NEGATE_EXPR in -A / -B to A / B folding. * gcc.dg/torture/pr80362.c: New testcase. 2015-11-25 Richard Biener <rguent...@suse.de> PR middle-end/68528 * fold-const.c (fold_binary_loc): Do not call negate_expr_p on stripped operands. * gcc.dg/torture/pr68528.c: New testcase. 2017-03-27 Richard Biener <rguent...@suse.de> PR middle-end/80171 * gimple-fold.c (fold_ctor_reference): Properly guard against NULL return value from canonicalize_constructor_val. * g++.dg/torture/pr80171.C: New testcase. 2016-06-13 Richard Biener <rguent...@suse.de> PR middle-end/64516 * fold-const.c (fold_unary_loc): Preserve alignment when folding a VIEW_CONVERT_EXPR into a MEM_REF. * gcc.dg/align-3.c: New testcase. Added: branches/gcc-5-branch/gcc/testsuite/g++.dg/torture/pr80171.C branches/gcc-5-branch/gcc/testsuite/gcc.dg/align-3.c branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr68528.c branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr80362.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/fold-const.c branches/gcc-5-branch/gcc/gimple-fold.c branches/gcc-5-branch/gcc/testsuite/ChangeLog
