File: null-register-operands.mir

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# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses null register operands correctly.

--- |

  define i32 @deref(i32* %p) {
  entry:
    %a = load i32, i32* %p
    ret i32 %a
  }

...
---
# CHECK: name: deref
name:            deref
body: |
  bb.0.entry:
    ; CHECK:      $eax = MOV32rm $rdi, 1, $noreg, 0, $noreg
    ; CHECK-NEXT: RET64 $eax
    $eax = MOV32rm $rdi, 1, _, 0, $noreg
    RET64 $eax
...