[LLVMbugs] [Bug 13301] New: Tests in Transforms/LoopRotate sometimes hang up on msvc

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13301

             Bug #: 13301
           Summary: Tests in Transforms/LoopRotate sometimes hang up on
                    msvc
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: geek4civic at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


I have not reproduced the case, though.
It seems a few tests in LoopRotate hang up on msvc (VS10, MSC 1600 | Release)
in rare frequency.

I have seen 3 tests below stick.
I don't know since when the hangups occurred. IIRC, I had not seen around 3.1
released.

Transforms/LoopRotate/alloca.ll
Transforms/LoopRotate/PhiRename-1.ll
Transforms/LoopRotate/PhiSelfRefernce-1.ll

I could bisect if I obtained possible reduced case.

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