[llvm-bugs] [Bug 27485] New: [X86] Codegen/X86/selectiondag-cse.ll hits assert when LLVM compiled with XDEBUG

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Apr 22 12:10:29 PDT 2016


https://llvm.org/bugs/show_bug.cgi?id=27485

            Bug ID: 27485
           Summary: [X86] Codegen/X86/selectiondag-cse.ll hits assert when
                    LLVM compiled with XDEBUG
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: gberry at codeaurora.org
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Error message:

Detected cycle in SelectionDAG
Offending node:
t172: i32 = <<Unknown Machine Node #64261>> t174, TargetConstant:i8<1>, t174,
TargetConstant:i32<2>, Register:i32 %noreg
  t174: i64 = <<Unknown Machine Node #65526>> t172, t158, TargetConstant:i32<4>
    t172: i32 = <<Unknown Machine Node #64261>> t174, TargetConstant:i8<1>,
t174, TargetConstant:i32<2>, Register:i32 %noreg
      t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
        t172: i32 = <<Unknown Machine Node #64261>> t174, TargetConstant:i8<1>,
t174, TargetConstant:i32<2>, Register:i32 %noreg
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t163: i8 = TargetConstant<1>
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t171: i32 = TargetConstant<2>
          t165: i32 = Register %noreg
        t158: i32 = srl t156, Constant:i8<16>
          t156: i32 = truncate t6
            t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
              t5: i64 = Register %vreg1
          t107: i8 = Constant<16>
        t173: i32 = TargetConstant<4>
      t163: i8 = TargetConstant<1>
      t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
        t172: i32 = <<Unknown Machine Node #64261>> t174, TargetConstant:i8<1>,
t174, TargetConstant:i32<2>, Register:i32 %noreg
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t163: i8 = TargetConstant<1>
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t171: i32 = TargetConstant<2>
          t165: i32 = Register %noreg
        t158: i32 = srl t156, Constant:i8<16>
          t156: i32 = truncate t6
            t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
              t5: i64 = Register %vreg1
          t107: i8 = Constant<16>
        t173: i32 = TargetConstant<4>
      t171: i32 = TargetConstant<2>
      t165: i32 = Register %noreg
    t158: i32 = srl t156, Constant:i8<16>
      t156: i32 = truncate t6
        t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
          t5: i64 = Register %vreg1
      t107: i8 = Constant<16>
    t173: i32 = TargetConstant<4>
  t163: i8 = TargetConstant<1>
  t174: i64 = <<Unknown Machine Node #65526>> t172, t158, TargetConstant:i32<4>
    t172: i32 = <<Unknown Machine Node #64261>> t174, TargetConstant:i8<1>,
t174, TargetConstant:i32<2>, Register:i32 %noreg
      t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
        t172: i32 = <<Unknown Machine Node #64261>> t174, TargetConstant:i8<1>,
t174, TargetConstant:i32<2>, Register:i32 %noreg
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t163: i8 = TargetConstant<1>
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t171: i32 = TargetConstant<2>
          t165: i32 = Register %noreg
        t158: i32 = srl t156, Constant:i8<16>
          t156: i32 = truncate t6
            t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
              t5: i64 = Register %vreg1
          t107: i8 = Constant<16>
        t173: i32 = TargetConstant<4>
      t163: i8 = TargetConstant<1>
      t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
        t172: i32 = <<Unknown Machine Node #64261>> t174, TargetConstant:i8<1>,
t174, TargetConstant:i32<2>, Register:i32 %noreg
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t163: i8 = TargetConstant<1>
          t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
            t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t163: i8 = TargetConstant<1>
              t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>
                t172: i32 = <<Unknown Machine Node #64261>> t174,
TargetConstant:i8<1>, t174, TargetConstant:i32<2>, Register:i32 %noreg
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t163: i8 = TargetConstant<1>
                  t174: i64 = <<Unknown Machine Node #65526>> t172, t158,
TargetConstant:i32<4>



                  t171: i32 = TargetConstant<2>
                  t165: i32 = Register %noreg
                t158: i32 = srl t156, Constant:i8<16>
                  t156: i32 = truncate t6

                  t107: i8 = Constant<16>
                t173: i32 = TargetConstant<4>
              t171: i32 = TargetConstant<2>
              t165: i32 = Register %noreg
            t158: i32 = srl t156, Constant:i8<16>
              t156: i32 = truncate t6
                t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
                  t5: i64 = Register %vreg1
              t107: i8 = Constant<16>
            t173: i32 = TargetConstant<4>
          t171: i32 = TargetConstant<2>
          t165: i32 = Register %noreg
        t158: i32 = srl t156, Constant:i8<16>
          t156: i32 = truncate t6
            t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
              t5: i64 = Register %vreg1
          t107: i8 = Constant<16>
        t173: i32 = TargetConstant<4>
      t171: i32 = TargetConstant<2>
      t165: i32 = Register %noreg
    t158: i32 = srl t156, Constant:i8<16>
      t156: i32 = truncate t6
        t6: i64,ch = CopyFromReg t4:1, Register:i64 %vreg1
          t5: i64 = Register %vreg1
      t107: i8 = Constant<16>
    t173: i32 = TargetConstant<4>
  t171: i32 = TargetConstant<2>
  t165: i32 = Register %noreg
#0 0x0000000001839f68 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x1839f68)
#1 0x0000000001838756 llvm::sys::RunSignalHandlers()
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x1838756)
#2 0x000000000183aa96 SignalHandler(int)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x183aa96)
#3 0x00007f207c1a0cb0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0xfcb0)
#4 0x00007f207b3650d5 gsignal
/build/eglibc-rrybNj/eglibc-2.15/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:64:0
#5 0x00007f207b36883b abort
/build/eglibc-rrybNj/eglibc-2.15/stdlib/abort.c:93:0
#6 0x00000000016e8c37 checkForCyclesHelper(llvm::SDNode const*,
llvm::SmallPtrSetImpl<llvm::SDNode const*>&, llvm::SmallPtrSetImpl<llvm::SDNode
const*>&, llvm::SelectionDAG const*)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16e8c37)
#7 0x00000000016e8b41 checkForCyclesHelper(llvm::SDNode const*,
llvm::SmallPtrSetImpl<llvm::SDNode const*>&, llvm::SmallPtrSetImpl<llvm::SDNode
const*>&, llvm::SelectionDAG const*)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16e8b41)
#8 0x00000000016e8b41 checkForCyclesHelper(llvm::SDNode const*,
llvm::SmallPtrSetImpl<llvm::SDNode const*>&, llvm::SmallPtrSetImpl<llvm::SDNode
const*>&, llvm::SelectionDAG const*)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16e8b41)
#9 0x00000000016b46c3 llvm::SelectionDAG::createOperands(llvm::SDNode*,
llvm::ArrayRef<llvm::SDValue>)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16b46c3)
#10 0x00000000016e1b2c llvm::SelectionDAG::MorphNodeTo(llvm::SDNode*, unsigned
int, llvm::SDVTList, llvm::ArrayRef<llvm::SDValue>)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16e1b2c)
#11 0x00000000016ff65d llvm::SelectionDAGISel::MorphNode(llvm::SDNode*,
unsigned int, llvm::SDVTList, llvm::ArrayRef<llvm::SDValue>, unsigned int)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16ff65d)
#12 0x0000000001702c2b llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*,
unsigned char const*, unsigned int)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x1702c2b)
#13 0x0000000000e6d145 (anonymous
namespace)::X86DAGToDAGISel::Select(llvm::SDNode*)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0xe6d145)
#14 0x00000000016fb61a llvm::SelectionDAGISel::DoInstructionSelection()
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16fb61a)
#15 0x00000000016fa9c0 llvm::SelectionDAGISel::CodeGenAndEmitDAG()
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16fa9c0)
#16 0x00000000016f8f16
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16f8f16)
#17 0x00000000016f4b54
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x16f4b54)
#18 0x0000000000e65d81 (anonymous
namespace)::X86DAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0xe65d81)
#19 0x000000000120a9f2
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x120a9f2)
#20 0x0000000001436c48 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x1436c48)
#21 0x0000000001436e8b llvm::FPPassManager::runOnModule(llvm::Module&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x1436e8b)
#22 0x0000000001437348 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x1437348)
#23 0x00000000005e411c main
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x5e411c)
#24 0x00007f207b35076d __libc_start_main
/build/eglibc-rrybNj/eglibc-2.15/csu/libc-start.c:258:0
#25 0x00000000005ddb75 _start
(/local/mnt/gberry/test/build-xdbg/llvm/bin/llc+0x5ddb75)
Stack dump:
0.    Program arguments: /local/mnt/gberry/test/build-xdbg/llvm/./bin/llc 
1.    Running pass 'Function Pass Manager' on module '<stdin>'.
2.    Running pass 'X86 DAG->DAG Instruction Selection' on function
'@Mode_Decision_for_4x4IntraBlocks'

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