[llvm-bugs] [Bug 33749] New: fatal error: error in backend: Cannot select: t195: i1 = add t192, t194 (in HexagonDAGToDAGISel::Select)

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33749

            Bug ID: 33749
           Summary: fatal error: error in backend: Cannot select: t195: i1
                    = add t192, t194 (in HexagonDAGToDAGISel::Select)
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: kcc at google.com
                CC: llvm-bugs at lists.llvm.org, vitalybuka at google.com

Created attachment 18778
  --> https://bugs.llvm.org/attachment.cgi?id=18778&action=edit
c2.cc

on r307569

clang -cc1 -triple hexagon-unknown -emit-obj  c2.cc  -O2

fatal error: error in backend: Cannot select: t195: i1 = add t192, t194
  t192: i1 = add t189, t191
    t189: i1 = add t150, t188
      t150: i1 = mul t129, t149
        t129: i1 = add t128, Constant:i1<-1>
          t128: i1 = add t20, t123
            t20: i1 = truncate t19
...

found by an experimental clang-proto-fuzzer

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