[LLVMbugs] [Bug 12821] New: llc -regalloc=fast -verify-machineinstrs: "Using an undefined physical register"

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon May 14 03:31:05 PDT 2012


             Bug #: 12821
           Summary: llc -regalloc=fast -verify-machineinstrs: "Using an
                    undefined physical register"
           Product: tools
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: llc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: patrik.h.hagglund at ericsson.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 8553
  --> http://llvm.org/bugs/attachment.cgi?id=8553

This report attach a testcase generated by llvm-stress. If executed as shown in
the summary, it will fail.

(We first saw this problem using our own backend. See

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