https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66646
--- Comment #5 from amker at gcc dot gnu.org --- After commit reordering passes: commit 410372fef14173261ce8e547db98eafb3174921f Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> Date: Thu May 19 07:39:52 2016 +0000 2016-05-19 Richard Biener <rguent...@suse.de> PR tree-optimization/70729 * passes.def: Move LIM pass before PRE. Remove no longer required copyprop and move first DCE out of the loop pipeline. * gcc.dg/autopar/outer-6.c: Adjust to avoid redundant store. * gcc.dg/graphite/scop-18.c: Likewise. * gcc.dg/pr41783.c: Disable LIM. * gcc.dg/tree-ssa/loadpre10.c: Likewise. * gcc.dg/tree-ssa/loadpre23.c: Likewise. * gcc.dg/tree-ssa/loadpre24.c: Likewise. * gcc.dg/tree-ssa/loadpre25.c: Likewise. * gcc.dg/tree-ssa/loadpre4.c: Likewise. * gcc.dg/tree-ssa/loadpre8.c: Likewise. * gcc.dg/tree-ssa/ssa-pre-16.c: Likewise. * gcc.dg/tree-ssa/ssa-pre-18.c: Likewise. * gcc.dg/tree-ssa/ssa-pre-20.c: Likewise. * gcc.dg/tree-ssa/ssa-pre-3.c: Likewise. * gfortran.dg/pr42108.f90: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236440 138bc75d-0d04-0410-961f-82ee72b054a4 GCC no longer recognizes &a[j]/&a[j-1]. This is because of changed IR. I will report another bug for this while keeping this one for track of memcopy improvement (or ldist).