[LLVMbugs] [Bug 10520] New: Assertion in register scavenger

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=10520

           Summary: Assertion in register scavenger
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: ARM
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: asl at math.spbu.ru
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=6953)
 --> (http://llvm.org/bugs/attachment.cgi?id=6953)
Testcase

Running the attached testcase yields:


$ ./llc bugpoint-reduced-simplified.bc 
Assertion failed: (SubUsed && "Using an undefined register!"), function
forward, file /Users/asl/Projects/llvm/src/lib/CodeGen/RegisterScavenging.cpp,
line 208.

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