[LLVMbugs] [Bug 2289] New: llc assertion failure: Multiple implicit_def defining same register?

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2289

           Summary: llc assertion failure: Multiple implicit_def defining
                    same register?
           Product: new-bugs
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=1619)
 --> (http://llvm.org/bugs/attachment.cgi?id=1619)
testcase .ll

Running llc on the attached testcase gives:

llc: lib/CodeGen/SimpleRegisterCoalescing.cpp:766: void
llvm::SimpleRegisterCoalescing::RemoveCopiesFromValNo(llvm::LiveInterval&,
llvm::VNInfo*): Assertion `!ImpDef && "Multiple implicit_def defining same
register?"' failed.


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