# RUN: llc -O0 -mtriple=aarch64-- -run-pass=instruction-select -verify-machineinstrs -global-isel %s -o - | FileCheck %s

--- |
  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"

  define void @implicit_def() { ret void }
...

---
# CHECK-LABEL: name: implicit_def
name:            implicit_def
legalized:       true
regBankSelected: true
# CHECK:      registers:
# CHECK-NEXT:  - { id: 0, class: gpr32, preferred-register: '' }
# CHECK-NEXT:  - { id: 1, class: gpr32, preferred-register: '' }
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }

# CHECK:  body:
# CHECK:    [[DEF:%[0-9]+]] = IMPLICIT_DEF
# CHECK:    [[ADD:%[0-9]+]] = ADDWrr [[DEF]], [[DEF]]
# CHECK:    %w0 = COPY [[ADD]]
body:             |
  bb.0:
    %0(s32) = G_IMPLICIT_DEF
    %1(s32) = G_ADD %0, %0
    %w0 = COPY %1(s32)
...