test/CodeGen/AMDGPU/verify-constant-bus-violations.mir

# RUN: not --crash llc -march=amdgcn -mcpu=gfx900 -run-pass machineverifier -o /dev/null %s 2>&1 | FileCheck -implicit-check-not="Bad machine code" -check-prefix=GFX9-ERR %s
# RUN: not --crash llc -march=amdgcn -mcpu=gfx1010 -mattr=-wavefrontsize32,+wavefrontsize64 -run-pass machineverifier -o /dev/null %s 2>&1 | FileCheck -implicit-check-not="Bad machine code" -check-prefix=GFX10PLUS-ERR %s
# RUN: not --crash llc -march=amdgcn -mcpu=gfx1100 -mattr=-wavefrontsize32,+wavefrontsize64 -run-pass machineverifier -o /dev/null %s 2>&1 | FileCheck -implicit-check-not="Bad machine code" -check-prefix=GFX10PLUS-ERR %s

# GFX9-ERR: *** Bad machine code: VOP* instruction violates constant bus restriction ***
# GFX9-ERR: $vgpr0 = V_CNDMASK_B32_e64 0, $sgpr0, 0, -1, killed $sgpr0_sgpr1, implicit $exec
# GFX9-ERR: *** Bad machine code: VOP* instruction violates constant bus restriction ***
# GFX9-ERR: $vgpr0 = V_FMAAK_F32 $sgpr2, $vgpr0, 1077936128, implicit $mode, implicit $exec
---
name:           sgpr_reuse_2sgpr
liveins:
  - { reg: '$sgpr0_sgpr1', virtual-reg: '' }
body:            |
  bb.0:
    liveins: $sgpr0_sgpr1, $sgpr2
    $vgpr0 = V_CNDMASK_B32_e64 0, $sgpr0, 0, -1, killed $sgpr0_sgpr1, implicit $exec
    $vgpr0 = V_FMAAK_F32 $sgpr2, $vgpr0, 1077936128, implicit $mode, implicit $exec
...

# GFX10PLUS-ERR: *** Bad machine code: VOP* instruction violates constant bus restriction ***
# GFX10PLUS-ERR: $vgpr0 = V_CNDMASK_B32_e64 0, $sgpr0, 0, $sgpr2, killed $sgpr0_sgpr1, implicit $exec
# GFX10PLUS-ERR: *** Bad machine code: VOP2/VOP3 instruction uses more than one literal ***
# GFX10PLUS-ERR: $vgpr0 = V_FMAAK_F32 1077936128, $vgpr0, 0, implicit $mode, implicit $exec
---
name:           sgpr_reuse_3sgpr
liveins:
  - { reg: '$sgpr0_sgpr1', virtual-reg: '' }
  - { reg: '$sgpr2', virtual-reg: '' }
body:            |
  bb.0:
    liveins: $sgpr0_sgpr1, $sgpr2
    $vgpr0 = V_CNDMASK_B32_e64 0, $sgpr0, 0, $sgpr2, killed $sgpr0_sgpr1, implicit $exec
    $vgpr0 = V_FMAAK_F32 1077936128, $vgpr0, 0, implicit $mode, implicit $exec
    $vgpr0 = V_FMAAK_F32 $sgpr2, $vgpr0, 1077936128, implicit $mode, implicit $exec
...