test/CodeGen/AMDGPU/vopc_dpp.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=gfx1100 -run-pass=gcn-dpp-combine -verify-machineinstrs -o - %s | FileCheck %s -check-prefix=GCN

---

name: vopc
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2

    ; GCN-LABEL: name: vopc
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
    ; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr2
    ; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: V_CMP_LT_F32_e32_dpp 0, [[COPY1]], 0, [[COPY]], 1, 15, 15, 1, implicit-def $vcc, implicit $mode, implicit $exec
    ; GCN-NEXT: [[V_MOV_B32_dpp:%[0-9]+]]:vgpr_32 = V_MOV_B32_dpp [[DEF]], [[COPY1]], 1, 15, 15, 1, implicit $exec
    ; GCN-NEXT: V_CMPX_EQ_I16_t16_nosdst_e64 [[V_MOV_B32_dpp]], [[COPY]], implicit-def $exec, implicit-def $vcc, implicit $mode, implicit $exec
    ; GCN-NEXT: [[V_CMP_CLASS_F16_t16_e64_dpp:%[0-9]+]]:sgpr_32 = V_CMP_CLASS_F16_t16_e64_dpp 0, [[COPY1]], [[COPY]], 1, 15, 15, 1, implicit $exec
    ; GCN-NEXT: [[V_CMP_GE_F16_t16_e64_dpp:%[0-9]+]]:sgpr_32 = V_CMP_GE_F16_t16_e64_dpp 1, [[COPY1]], 0, [[COPY]], 1, 1, 15, 15, 1, implicit $mode, implicit $exec
    ; GCN-NEXT: [[V_MOV_B32_dpp1:%[0-9]+]]:vgpr_32 = V_MOV_B32_dpp [[DEF]], [[COPY1]], 1, 15, 15, 1, implicit $exec
    ; GCN-NEXT: V_CMPX_GT_U32_nosdst_e64 [[V_MOV_B32_dpp1]], [[COPY]], implicit-def $exec, implicit $mode, implicit $exec
    ; GCN-NEXT: V_CMP_CLASS_F32_e32_dpp 2, [[COPY1]], [[COPY]], 1, 15, 15, 1, implicit-def $vcc, implicit $exec
    ; GCN-NEXT: V_CMP_NGE_F32_e32_dpp 0, [[COPY1]], 0, [[COPY]], 1, 15, 15, 1, implicit-def $vcc, implicit $mode, implicit $exec
    ; GCN-NEXT: [[V_MOV_B32_dpp2:%[0-9]+]]:vgpr_32 = V_MOV_B32_dpp [[DEF]], [[COPY1]], 1, 15, 15, 1, implicit $exec
    ; GCN-NEXT: [[V_CMP_NGE_F16_t16_e64_:%[0-9]+]]:sgpr_32 = V_CMP_NGE_F16_t16_e64 0, [[V_CMP_NGE_F16_t16_e64_]], 0, [[COPY]], 0, implicit $mode, implicit $exec
    ; GCN-NEXT: [[V_CMP_NGE_F32_e64_dpp:%[0-9]+]]:sgpr_32 = V_CMP_NGE_F32_e64_dpp 0, [[COPY1]], 0, [[COPY]], 0, 1, 15, 15, 1, implicit $mode, implicit $exec
    ; GCN-NEXT: [[S_AND_B32_:%[0-9]+]]:sgpr_32 = S_AND_B32 [[V_CMP_NGE_F32_e64_dpp]], 10101, implicit-def $scc
    ; GCN-NEXT: V_CMP_GT_I32_e32_dpp [[COPY1]], [[COPY]], 1, 15, 15, 1, implicit-def $vcc, implicit $exec
    %0:vgpr_32 = COPY $vgpr0
    %1:vgpr_32 = COPY $vgpr1
    %2:vgpr_32 = COPY $vgpr2
    %3:vgpr_32 = IMPLICIT_DEF

    %4:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    V_CMP_LT_F32_e32 %4, %0, implicit-def $vcc, implicit $mode, implicit $exec

    ; unsafe to combine cmpx
    %5:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    V_CMPX_EQ_I16_t16_nosdst_e64 %5, %0, implicit-def $exec, implicit-def $vcc, implicit $mode, implicit $exec

    %6:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    %7:sgpr_32 = V_CMP_CLASS_F16_t16_e64 0, %6, %0, implicit-def $vcc, implicit $mode, implicit $exec

    %8:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    %9:sgpr_32 = V_CMP_GE_F16_t16_e64 1, %8, 0, %0, 1, implicit $mode, implicit $exec

    ; unsafe to combine cmpx
    %10:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    V_CMPX_GT_U32_nosdst_e64 %10, %0, implicit-def $exec, implicit $mode, implicit $exec

    %11:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    %12:sgpr_32 = V_CMP_CLASS_F32_e64 2, %11, %0, implicit $mode, implicit $exec

    ; shrink
    %13:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    %14:sgpr_32 = V_CMP_NGE_F32_e64 0, %13, 0, %0, 0, implicit $mode, implicit $exec

    ; do not shrink True16 instructions
    %15:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    %16:sgpr_32 = V_CMP_NGE_F16_t16_e64 0, %16, 0, %0, 0, implicit $mode, implicit $exec

    ; do not shrink, sdst used
    %17:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    %18:sgpr_32 = V_CMP_NGE_F32_e64 0, %17, 0, %0, 0, implicit $mode, implicit $exec
    %19:sgpr_32 = S_AND_B32 %18, 10101, implicit-def $scc

    ; commute
    %20:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 15, 15, 1, implicit $exec
    V_CMP_LT_I32_e32 %0, %20, implicit-def $vcc, implicit $exec

...
---

name: mask_not_full
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2

    ; GCN-LABEL: name: mask_not_full
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
    ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
    ; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
    ; GCN-NEXT: [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
    ; GCN-NEXT: [[V_MOV_B32_dpp:%[0-9]+]]:vgpr_32 = V_MOV_B32_dpp [[DEF]], [[COPY1]], 1, 15, 14, 1, implicit $exec
    ; GCN-NEXT: [[V_CMP_CLASS_F16_t16_e64_:%[0-9]+]]:sgpr_32 = V_CMP_CLASS_F16_t16_e64 0, [[V_MOV_B32_dpp]], [[COPY]], implicit-def $vcc, implicit $mode, implicit $exec
    ; GCN-NEXT: [[V_MOV_B32_dpp1:%[0-9]+]]:vgpr_32 = V_MOV_B32_dpp [[V_MOV_B32_e32_]], [[COPY1]], 1, 13, 15, 1, implicit $exec
    ; GCN-NEXT: [[V_CMP_GE_F32_e64_:%[0-9]+]]:sgpr_32 = V_CMP_GE_F32_e64 1, [[V_MOV_B32_dpp1]], 0, [[COPY]], 1, implicit $mode, implicit $exec
    %0:vgpr_32 = COPY $vgpr0
    %1:vgpr_32 = COPY $vgpr1
    %2:vgpr_32 = IMPLICIT_DEF
    %3:vgpr_32 = V_MOV_B32_e32 0, implicit $exec

    ; Do not combine VOPC when row_mask or bank_mask is not 0xf
    ; All cases are covered by generic rules for creating DPP instructions
    %4:vgpr_32 = V_MOV_B32_dpp %2, %1, 1, 15, 14, 1, implicit $exec
    %99:sgpr_32 = V_CMP_CLASS_F16_t16_e64 0, %4, %0, implicit-def $vcc, implicit $mode, implicit $exec

    %5:vgpr_32 = V_MOV_B32_dpp %3, %1, 1, 13, 15, 1, implicit $exec
    %6:sgpr_32 = V_CMP_GE_F32_e64 1, %5, 0, %0, 1, implicit $mode, implicit $exec

...