[llvm-bugs] [Bug 45186] New: DAGCombiner::Run infinite loop / memory leak

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45186

            Bug ID: 45186
           Summary: DAGCombiner::Run infinite loop / memory leak
           Product: libraries
           Version: trunk
          Hardware: Other
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
          Assignee: unassignedbugs at nondot.org
          Reporter: bdragon at FreeBSD.org
                CC: llvm-bugs at lists.llvm.org

Created attachment 23227
  --> https://bugs.llvm.org/attachment.cgi?id=23227&action=edit
reproduce files from manually crashing compiler with SIGBUS.

FreeBSD clang 9.0.1 could compile this code OK, but FreeBSD clang 10.0.0
llvmorg-10.0.0-rc3-1-gc290cb61fdc gets stuck in an infinite loop, and so does
current llvm master.

Code is from FreeBSD security/nss package building on powerpc64.

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