third_party/llvm-7.0/llvm/test/CodeGen/AMDGPU/cluster-flat-loads-postra.mir

# RUN: llc -march=amdgcn -mcpu=tonga -run-pass post-RA-sched -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s

# GCN:      FLAT_LOAD_DWORD
# GCN-NEXT: FLAT_LOAD_DWORD
# GCN:      FLAT_STORE_DWORD
# GCN-NEXT: FLAT_STORE_DWORD

---
name:            cluster_loads_post_ra
tracksRegLiveness: true
registers:
liveins:
  - { reg: '$vgpr0' }
body:             |
  bb.0:
    liveins: $vgpr0

    $vgpr0_vgpr1 = IMPLICIT_DEF
    $vgpr4_vgpr5 = IMPLICIT_DEF
    $vgpr0 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, implicit $exec, implicit $flat_scr :: (load 4)
    $vgpr4 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, implicit $exec, implicit $flat_scr :: (load 4)
    $vgpr2 = IMPLICIT_DEF
    $vgpr3 = IMPLICIT_DEF
    $vgpr6 = IMPLICIT_DEF
    $vgpr0 = V_ADD_I32_e32 16, $vgpr2, implicit-def $vcc, implicit $exec
    $vgpr1 = V_ADDC_U32_e32 $vgpr3, killed $vgpr6, implicit-def dead $vcc, implicit $vcc, implicit $exec
    FLAT_STORE_DWORD $vgpr2_vgpr3, killed $vgpr0, 0, 0, 0, implicit $exec, implicit $flat_scr :: (store 4)
    FLAT_STORE_DWORD $vgpr0_vgpr1, killed $vgpr4, 0, 0, 0, implicit $exec, implicit $flat_scr :: (store 4)
    S_ENDPGM

...