[llvm-bugs] [Bug 28716] New: Infinite recursion in createBlockInMask

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28716

            Bug ID: 28716
           Summary: Infinite recursion in createBlockInMask
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Loop Optimizer
          Assignee: unassignedbugs at nondot.org
          Reporter: timshen91 at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 16808
  --> https://llvm.org/bugs/attachment.cgi?id=16808&action=edit
reduced test

Looking at createBlockInMask and createEdgeMask, they don't intend prevent
infinite recursion from happening (`OrigLoop->getHeader() == BB` seems not
enough to catch all circles, see the reduced test).

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