[Bug regression/86266] New: [6 regression] r261799 causes failure on gcc.dg/tree-ssa/ssa-dse-16.c

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86266

            Bug ID: 86266
           Summary: [6 regression] r261799 causes failure on
                    gcc.dg/tree-ssa/ssa-dse-16.c
           Product: gcc
           Version: 6.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: regression
          Assignee: unassigned at gcc dot gnu.org
          Reporter: clyon at gcc dot gnu.org
  Target Milestone: ---

Hi,

Since r261799, I've noticed:
FAIL: gcc.dg/tree-ssa/ssa-dse-16.c scan-tree-dump dse1 "Deleted dead store"
on arm and aarch64

This commit contains a series of backports, I don't know which one introduced
the regression.