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From: "schwab@linux-m68k.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/65917] New: [6.0 regression] FAIL: gcc.dg/tree-ssa/20030922-2.c scan-tree-dump-times dom1 "if " 2
Date: Tue, 28 Apr 2015 13:55:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65917

            Bug ID: 65917
           Summary: [6.0 regression] FAIL: gcc.dg/tree-ssa/20030922-2.c
                    scan-tree-dump-times dom1 "if " 2
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schwab@linux-m68k.org
                CC: rguenth at gcc dot gnu.org
  Target Milestone: ---
            Target: m68k-*-*

$ gcc/xgcc -B gcc/ -O1 -fdump-tree-dom1 -S
../gcc/testsuite/gcc.dg/tree-ssa/20030922-2.c && grep -c "if " 20030922-2.c.*
3

83617aa2bed0a6ac21010ba3b960d087bcb66f9b is the first bad commit
commit 83617aa2bed0a6ac21010ba3b960d087bcb66f9b
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Mon Apr 27 12:46:58 2015 +0000

    2015-04-27  Richard Biener  <rguenther@suse.de>

        * tree-ssa-dom.c (record_equivalences_from_phis): Valueize PHI arg.
        (record_equivalences_from_stmt): Valueize rhs.
        (record_equality): Canonicalize x and y order via
        tree_swap_operands_p.  Do not swap operands for same loop depth.

        * gcc.target/i386/pr65217.c: XFAIL.