[llvm-bugs] [Bug 30757] New: opt crashes during early cse pass

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30757

            Bug ID: 30757
           Summary: opt crashes during early cse pass
           Product: tools
           Version: 3.9
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: opt
          Assignee: unassignedbugs at nondot.org
          Reporter: Florian.PICHLMEIER at 3ds.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 17473
  --> https://llvm.org/bugs/attachment.cgi?id=17473&action=edit
Minimal reproducer

Switching from LLVM 3.8.1 to LLVM 3.9 one of our unit test crashes with this
error in the early cse pass.

opt bugpoint-reduced-simplified.bc -early-cse shows the crash

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