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From: "antoine.balestrat at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/56264] New: ICE in check_loop_closed_ssa_use, at  tree-ssa-loop-manip.c:557
Date: Sat, 09 Feb 2013 12:09:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D56264

             Bug #: 56264
           Summary: ICE in check_loop_closed_ssa_use, at
                    tree-ssa-loop-manip.c:557
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: antoine.balestrat@gmail.com


Using GCC 4.8.0 as of 220130209 :

$ cat check.c
int a, b, c;

void f(void)
{
    if(b)
    {
        for(a =3D 0; a < 1; a++)
lbl:
            c =3D c && b ? : 0;

        c =3D 0;
        goto lbl;
    }

    if(a)
        goto lbl;
}

$ xgcc -w -O2 -funswitch-loops check.c
check.c: In function =E2=80=98f=E2=80=99:
check.c:3:6: internal compiler error: in check_loop_closed_ssa_use, at=20
tree-ssa-loop-manip.c:557
 void f(void)
      ^
0x9d90f6 check_loop_closed_ssa_use
    ../../srcdir/gcc/tree-ssa-loop-manip.c:556
0x9dac42 verify_loop_closed_ssa(bool)
    ../../srcdir/gcc/tree-ssa-loop-manip.c:602
0x83eede execute_function_todo
    ../../srcdir/gcc/passes.c:1974
0x83f757 execute_todo
    ../../srcdir/gcc/passes.c:1999
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Please include the complete backtrace with any bug report.
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