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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/67816] New: [6 Regression] ICE in duplicate_thread_path, 186.crafty fails to build
Date: Fri, 02 Oct 2015 10:37:00 -0000
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X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 6.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67816

            Bug ID: 67816
           Summary: [6 Regression] ICE in duplicate_thread_path,
                    186.crafty fails to build
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
                CC: law at gcc dot gnu.org
  Target Milestone: ---

iterate.c: In function 'Iterate':
iterate.c:17:5: internal compiler error: in duplicate_thread_path, at
tree-ssa-threadupdate.c:2446
 int Iterate(int wtm, int search_type, int root_list_done)
     ^
option.c: In function 'Option':
option.c:2772:7: warning: implicit declaration of function 'gets'
[-Wimplicit-function-declaration]
       gets(buffer);
       ^
0xade17f duplicate_thread_path
        /gcc/spec/sb-czerny-head-64/gcc/gcc/tree-ssa-threadupdate.c:2445
0xade17f thread_through_all_blocks(bool)
        /gcc/spec/sb-czerny-head-64/gcc/gcc/tree-ssa-threadupdate.c:2632
0xa3be28 execute
        /gcc/spec/sb-czerny-head-64/gcc/gcc/tree-ssa-dom.c:622
Please submit a full bug report,
with preprocessed source if appropriate.


This is with -O3 on x86_64.