[llvm-bugs] [Bug 31203] New: Assertion: `Headers.size() >= 2 && "Expected irreducible CFG; -loop-info is likely invalid"' failed.

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31203

            Bug ID: 31203
           Summary: Assertion: `Headers.size() >= 2 && "Expected
                    irreducible CFG; -loop-info is likely invalid"'
                    failed.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Loop Optimizer
          Assignee: unassignedbugs at nondot.org
          Reporter: mcrosier at codeaurora.org
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 17683
  --> https://llvm.org/bugs/attachment.cgi?id=17683&action=edit
testcase

Test case attached.  Reproduce with: llc -O3 test.ll

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