test/CodeGen/AMDGPU/lo16-lo16-physreg-copy-agpr.mir

# RUN: llc -march=amdgcn -mcpu=gfx908 -start-before postrapseudos -asm-verbose=0 -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s

# GCN-LABEL: {{^}}lo_to_lo_agpr_to_agpr:
# GCN:      v_accvgpr_read_b32 [[TMP:v[0-9]+]], a0
# GCN-NEXT: s_nop 1
# GCN-NEXT: v_accvgpr_write_b32 a1, [[TMP]]
name: lo_to_lo_agpr_to_agpr
tracksRegLiveness: true
body:             |
  bb.0:
    $agpr0 = IMPLICIT_DEF
    $agpr1_lo16 = COPY $agpr0_lo16
    S_ENDPGM 0
...

# GCN-LABEL: {{^}}lo_to_lo_samereg:
# GCN:        s_waitcnt
# GCN-NEXT:   s_endpgm
name: lo_to_lo_samereg
tracksRegLiveness: true
body:             |
  bb.0:
    $agpr0 = IMPLICIT_DEF
    $agpr0_lo16 = COPY $agpr0_lo16
    S_ENDPGM 0
...

# GCN-LABEL: {{^}}lo_to_lo_undef_agpr_to_agpr:
# GCN:      v_accvgpr_read_b32 [[TMP:v[0-9]+]], a1
# GCN-NEXT: s_nop 1
# GCN-NEXT: v_accvgpr_write_b32 a2, [[TMP]]
name: lo_to_lo_undef_agpr_to_agpr
tracksRegLiveness: true
body:             |
  bb.0:
    $agpr1_lo16 = COPY undef $agpr0_lo16
    $agpr2 = COPY killed $agpr1
    S_ENDPGM 0
...

# GCN-LABEL: {{^}}lo_to_lo_sgpr_to_agpr:
# GCN:      v_mov_b32_e32 [[TMP:v[0-9]+]], s0
# GCN-NEXT: s_nop 1
# GCN-NEXT: v_accvgpr_write_b32 a1, [[TMP]]
name: lo_to_lo_sgpr_to_agpr
tracksRegLiveness: true
body:             |
  bb.0:
    $sgpr0 = IMPLICIT_DEF
    $agpr1_lo16 = COPY $sgpr0_lo16
    S_ENDPGM 0
...