[Bug middle-end/66877] New: [6 Regression] FAIL: gcc.dg/vect/vect-over-widen-3-big-array.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_over_widening_pattern: detected" 2

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66877

            Bug ID: 66877
           Summary: [6 Regression] FAIL:
                    gcc.dg/vect/vect-over-widen-3-big-array.c -flto
                    -ffat-lto-objects  scan-tree-dump-times vect
                    "vect_recog_over_widening_pattern: detected" 2
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ktkachov at gcc dot gnu.org
                CC: rguenther at suse dot de
  Target Milestone: ---
            Target: arm-none-eabi

After https://gcc.gnu.org/ml/gcc-patches/2015-07/msg00743.html
I see this test fail on arm targets.

Changing the scan-tree-dump-times to scan for only one occurrence makes the
test pass