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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AMDGPU/GlobalISel/inst-select-ctpop.mir
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn -mcpu=tahiti -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s
---
name: ctpop_s32_ss
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0
; CHECK-LABEL: name: ctpop_s32_ss
; CHECK: liveins: $sgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
; CHECK-NEXT: [[S_BCNT1_I32_B32_:%[0-9]+]]:sreg_32 = S_BCNT1_I32_B32 [[COPY]], implicit-def dead $scc
; CHECK-NEXT: S_ENDPGM 0, implicit [[S_BCNT1_I32_B32_]]
%0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s32) = G_CTPOP %0
S_ENDPGM 0, implicit %1
...
---
name: ctpop_s32_vs
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0
; CHECK-LABEL: name: ctpop_s32_vs
; CHECK: liveins: $sgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
; CHECK-NEXT: [[V_BCNT_U32_B32_e64_:%[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 [[COPY]], 0, implicit $exec
; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BCNT_U32_B32_e64_]]
%0:sgpr(s32) = COPY $sgpr0
%1:vgpr(s32) = G_CTPOP %0
S_ENDPGM 0, implicit %1
...
---
name: ctpop_s32_vv
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; CHECK-LABEL: name: ctpop_s32_vv
; CHECK: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; CHECK-NEXT: [[V_BCNT_U32_B32_e64_:%[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 [[COPY]], 0, implicit $exec
; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BCNT_U32_B32_e64_]]
%0:vgpr(s32) = COPY $vgpr0
%1:vgpr(s32) = G_CTPOP %0
S_ENDPGM 0, implicit %1
...
---
name: add_ctpop_s32_v_vv_commute0
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; CHECK-LABEL: name: add_ctpop_s32_v_vv_commute0
; CHECK: liveins: $vgpr0, $vgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; CHECK-NEXT: [[V_BCNT_U32_B32_e64_:%[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 [[COPY]], [[COPY1]], implicit $exec
; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BCNT_U32_B32_e64_]]
%0:vgpr(s32) = COPY $vgpr0
%1:vgpr(s32) = COPY $vgpr1
%2:vgpr(s32) = G_CTPOP %0
%3:vgpr(s32) = G_ADD %2, %1
S_ENDPGM 0, implicit %3
...
---
name: add_ctpop_s32_v_vv_commute1
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; CHECK-LABEL: name: add_ctpop_s32_v_vv_commute1
; CHECK: liveins: $vgpr0, $vgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; CHECK-NEXT: [[V_BCNT_U32_B32_e64_:%[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 [[COPY]], [[COPY1]], implicit $exec
; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BCNT_U32_B32_e64_]]
%0:vgpr(s32) = COPY $vgpr0
%1:vgpr(s32) = COPY $vgpr1
%2:vgpr(s32) = G_CTPOP %0
%3:vgpr(s32) = G_ADD %1, %2
S_ENDPGM 0, implicit %3
...
# Test add+ctpop pattern with all scalars. This should stay scalar.
---
name: add_ctpop_s32_s_ss_commute0
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0, $sgpr1
; CHECK-LABEL: name: add_ctpop_s32_s_ss_commute0
; CHECK: liveins: $sgpr0, $sgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:sreg_32 = COPY $sgpr1
; CHECK-NEXT: [[S_BCNT1_I32_B32_:%[0-9]+]]:sreg_32 = S_BCNT1_I32_B32 [[COPY]], implicit-def dead $scc
; CHECK-NEXT: [[S_ADD_I32_:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BCNT1_I32_B32_]], [[COPY1]], implicit-def dead $scc
; CHECK-NEXT: S_ENDPGM 0, implicit [[S_ADD_I32_]]
%0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s32) = COPY $sgpr1
%2:sgpr(s32) = G_CTPOP %0
%3:sgpr(s32) = G_ADD %2, %1
S_ENDPGM 0, implicit %3
...
---
name: add_ctpop_s32_v_vs_commute0
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0, $sgpr0
; CHECK-LABEL: name: add_ctpop_s32_v_vs_commute0
; CHECK: liveins: $vgpr0, $sgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:sreg_32 = COPY $sgpr0
; CHECK-NEXT: [[V_BCNT_U32_B32_e64_:%[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 [[COPY]], [[COPY1]], implicit $exec
; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BCNT_U32_B32_e64_]]
%0:vgpr(s32) = COPY $vgpr0
%1:sgpr(s32) = COPY $sgpr0
%2:vgpr(s32) = G_CTPOP %0
%3:vgpr(s32) = G_ADD %2, %1
S_ENDPGM 0, implicit %3
...
# SGPR->VGPR ctpop with VALU add
---
name: add_ctpop_s32_v_sv_commute0
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0, $sgpr0
; CHECK-LABEL: name: add_ctpop_s32_v_sv_commute0
; CHECK: liveins: $vgpr0, $sgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:sreg_32 = COPY $sgpr0
; CHECK-NEXT: [[V_BCNT_U32_B32_e64_:%[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 [[COPY1]], [[COPY]], implicit $exec
; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BCNT_U32_B32_e64_]]
%0:vgpr(s32) = COPY $vgpr0
%1:sgpr(s32) = COPY $sgpr0
%2:vgpr(s32) = G_CTPOP %1
%3:vgpr(s32) = G_ADD %2, %0
S_ENDPGM 0, implicit %3
...
# Scalar ctpop with VALU add
---
name: add_ctpop_s32_s_sv_commute0
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0, $vgpr0
; CHECK-LABEL: name: add_ctpop_s32_s_sv_commute0
; CHECK: liveins: $sgpr0, $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; CHECK-NEXT: [[V_BCNT_U32_B32_e64_:%[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 [[COPY]], [[COPY1]], implicit $exec
; CHECK-NEXT: S_ENDPGM 0, implicit [[V_BCNT_U32_B32_e64_]]
%0:sgpr(s32) = COPY $sgpr0
%1:vgpr(s32) = COPY $vgpr0
%2:sgpr(s32) = G_CTPOP %0
%3:vgpr(s32) = G_ADD %2, %1
S_ENDPGM 0, implicit %3
...
---
name: ctpop_s64_ss
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0_sgpr1
; CHECK-LABEL: name: ctpop_s64_ss
; CHECK: liveins: $sgpr0_sgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:sreg_64 = COPY $sgpr0_sgpr1
; CHECK-NEXT: [[S_BCNT1_I32_B64_:%[0-9]+]]:sreg_32 = S_BCNT1_I32_B64 [[COPY]], implicit-def dead $scc
; CHECK-NEXT: S_ENDPGM 0, implicit [[S_BCNT1_I32_B64_]]
%0:sgpr(s64) = COPY $sgpr0_sgpr1
%1:sgpr(s32) = G_CTPOP %0
S_ENDPGM 0, implicit %1
...