[llvm-bugs] [Bug 27414] New: PowerPC64: Machine code verifier failure - Explicit operand marked as implicit (MFOCRF8)

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27414

            Bug ID: 27414
           Summary: PowerPC64: Machine code verifier failure - Explicit
                    operand marked as implicit (MFOCRF8)
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: PowerPC
          Assignee: unassignedbugs at nondot.org
          Reporter: anton at samba.org
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 16231
  --> https://llvm.org/bugs/attachment.cgi?id=16231&action=edit
Test case

The following testcase trips up on the machine verifier:

# llc -verify-machineinstrs testcase.ll

*** Bad machine code: Explicit operand marked as implicit ***
- function:    main
- basic block: BB#0  (0x1003c4421e0)
- instruction: %X12<def> = MFOCRF8
- operand 1:   %CR2<imp-use,kill>
LLVM ERROR: Found 1 machine code errors.

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