test/CodeGen/MIR/X86/machine-verifier.mir

# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
# This test ensures that the MIR parser runs the machine verifier after parsing.

--- |

  define i32 @inc(i32 %a) {
  entry:
    ret i32 %a
  }

...
---
name:            inc
body: |
  bb.0.entry:
    liveins: %edi
   ; CHECK: *** Bad machine code: Too few operands ***
   ; CHECK: instruction: COPY
   ; CHECK: 2 operands expected, but 0 given.
    COPY
    RETQ
...