[LLVMbugs] [Bug 11829] New: Assertion in register scavenger

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=11829

             Bug #: 11829
           Summary: Assertion in register scavenger
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: asl at math.spbu.ru
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 7927
  --> http://llvm.org/bugs/attachment.cgi?id=7927
Testcase

Consider the attached .ll file.

It triggers an assertion in register scavenger (and machine code verifier
error) regardless whether copyprop pass enabled or not.

To reproduce:

$ llc bugpoint-reduced-simplified.ll

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