llvm/test/CodeGen/AMDGPU/GlobalISel/inst-select-bitreverse.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgpu7.01 -run-pass=instruction-select -o - %s | FileCheck %s

---
name: bitreverse_i32_ss
legalized: true
regBankSelected: true

body: |
  bb.0:
    liveins: $sgpr0
    ; CHECK-LABEL: name: bitreverse_i32_ss
    ; CHECK: liveins: $sgpr0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
    ; CHECK-NEXT: [[S_BREV_B32_:%[0-9]+]]:sreg_32 = S_BREV_B32 [[COPY]]
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[S_BREV_B32_]]
    %0:sgpr(i32) = COPY $sgpr0
    %1:sgpr(i32) = G_BITREVERSE %0
    S_ENDPGM 0, implicit %1
...

---
name: bitreverse_i32_vv
legalized: true
regBankSelected: true

body: |
  bb.0:
    liveins: $vgpr0
    ; CHECK-LABEL: name: bitreverse_i32_vv
    ; CHECK: liveins: $vgpr0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
    ; CHECK-NEXT: [[V_BFREV_B32_e64_:%[0-9]+]]:vgpr_32 = V_BFREV_B32_e64 [[COPY]], implicit $exec
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BFREV_B32_e64_]]
    %0:vgpr(i32) = COPY $vgpr0
    %1:vgpr(i32) = G_BITREVERSE %0
    S_ENDPGM 0, implicit %1
...

---
name: bitreverse_i32_vs
legalized: true
regBankSelected: true

body: |
  bb.0:
    liveins: $sgpr0
    ; CHECK-LABEL: name: bitreverse_i32_vs
    ; CHECK: liveins: $sgpr0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
    ; CHECK-NEXT: [[V_BFREV_B32_e64_:%[0-9]+]]:vgpr_32 = V_BFREV_B32_e64 [[COPY]], implicit $exec
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BFREV_B32_e64_]]
    %0:sgpr(i32) = COPY $sgpr0
    %1:vgpr(i32) = G_BITREVERSE %0
    S_ENDPGM 0, implicit %1
...

---
name: bitreverse_i64_ss
legalized: true
regBankSelected: true

body: |
  bb.0:
    liveins: $sgpr0_sgpr1
    ; CHECK-LABEL: name: bitreverse_i64_ss
    ; CHECK: liveins: $sgpr0_sgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_64 = COPY $sgpr0_sgpr1
    ; CHECK-NEXT: [[S_BREV_B64_:%[0-9]+]]:sreg_64 = S_BREV_B64 [[COPY]]
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[S_BREV_B64_]]
    %0:sgpr(i64) = COPY $sgpr0_sgpr1
    %1:sgpr(i64) = G_BITREVERSE %0
    S_ENDPGM 0, implicit %1
...

---
name: bitreverse_i64_vv
legalized: true
regBankSelected: true

body: |
  bb.0:
    liveins: $vgpr0_vgpr1
    ; CHECK-LABEL: name: bitreverse_i64_vv
    ; CHECK: liveins: $vgpr0_vgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:vreg_64 = COPY $vgpr0_vgpr1
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY [[COPY]].sub0
    ; CHECK-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY [[COPY]].sub1
    ; CHECK-NEXT: [[V_BFREV_B32_e64_:%[0-9]+]]:vgpr_32 = V_BFREV_B32_e64 [[COPY2]], implicit $exec
    ; CHECK-NEXT: [[V_BFREV_B32_e64_1:%[0-9]+]]:vgpr_32 = V_BFREV_B32_e64 [[COPY1]], implicit $exec
    ; CHECK-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64 = REG_SEQUENCE [[V_BFREV_B32_e64_]], %subreg.sub0, [[V_BFREV_B32_e64_1]], %subreg.sub1
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[REG_SEQUENCE]]
    %0:vgpr(i64) = COPY $vgpr0_vgpr1
    %2:vgpr(i32), %3:vgpr(i32) = G_UNMERGE_VALUES %0(i64)
    %4:vgpr(i32) = G_BITREVERSE %3
    %5:vgpr(i32) = G_BITREVERSE %2
    %1:vgpr(i64) = G_MERGE_VALUES %4(i32), %5(i32)
    S_ENDPGM 0, implicit %1
...

---
name: bitreverse_i64_vs
legalized: true
regBankSelected: true

body: |
  bb.0:
    liveins: $sgpr0_sgpr1
    ; CHECK-LABEL: name: bitreverse_i64_vs
    ; CHECK: liveins: $sgpr0_sgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_64 = COPY $sgpr0_sgpr1
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:sreg_32 = COPY [[COPY]].sub0
    ; CHECK-NEXT: [[COPY2:%[0-9]+]]:sreg_32 = COPY [[COPY]].sub1
    ; CHECK-NEXT: [[V_BFREV_B32_e64_:%[0-9]+]]:vgpr_32 = V_BFREV_B32_e64 [[COPY2]], implicit $exec
    ; CHECK-NEXT: [[V_BFREV_B32_e64_1:%[0-9]+]]:vgpr_32 = V_BFREV_B32_e64 [[COPY1]], implicit $exec
    ; CHECK-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64 = REG_SEQUENCE [[V_BFREV_B32_e64_]], %subreg.sub0, [[V_BFREV_B32_e64_1]], %subreg.sub1
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[REG_SEQUENCE]]
    %0:sgpr(i64) = COPY $sgpr0_sgpr1
    %2:sgpr(i32), %3:sgpr(i32) = G_UNMERGE_VALUES %0(i64)
    %4:vgpr(i32) = G_BITREVERSE %3
    %5:vgpr(i32) = G_BITREVERSE %2
    %1:vgpr(i64) = G_MERGE_VALUES %4(i32), %5(i32)
    S_ENDPGM 0, implicit %1
...