[llvm-bugs] [Bug 28418] New: opt never finishes compiling with -gvn option

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28418

            Bug ID: 28418
           Summary: opt never finishes compiling with -gvn option
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: katya_romanova at playstation.sony.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 16685
  --> https://llvm.org/bugs/attachment.cgi?id=16685&action=edit
reduced reproducer for this bug

opt never finishes compiling test case t.ll with –gvn option 
opt -gvn t.ll -o foo
Kudos to Rafael for helping me to reduce this.

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