[Bug tree-optimization/66442] New: [6 regression] FAIL: gcc.dg/autopar/pr46885.c (test for excess errors)

[sch...@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66442

            Bug ID: 66442
           Summary: [6 regression] FAIL: gcc.dg/autopar/pr46885.c (test
                    for excess errors)
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sch...@linux-m68k.org
                CC: vries at gcc dot gnu.org
            Blocks: 65443
  Target Milestone: ---
            Target: m68k-*-*

$ gcc/xgcc -Bgcc/ ../gcc/testsuite/gcc.dg/autopar/pr46885.c -O
-ftree-parallelize-loops=4 -fcompare-debug -fno-tree-dominator-opts
-funswitch-loops -S -o pr46885.s
xgcc: error: ../gcc/testsuite/gcc.dg/autopar/pr46885.c: -fcompare-debug failure

Removing any of the flags causes the failure to disappear.

d38409cd8b970f3d3657ca979a3235bfb54ad3ff is the first bad commit
commit d38409cd8b970f3d3657ca979a3235bfb54ad3ff
Author: vries <vries@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri Jun 5 15:57:34 2015 +0000

    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@224154
138bc75d-0d04-0410-961f-82ee72b054a4


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65443
[Bug 65443] Don't peel last iteration from loop in transform_to_exit_first_loop