test/CodeGen/AMDGPU/GlobalISel/regbankselect-select.mir

# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect -global-isel %s -verify-machineinstrs -o - -regbankselect-fast | FileCheck --check-prefixes=GCN,FAST %s
# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect -global-isel %s -verify-machineinstrs -o - -regbankselect-greedy | FileCheck --check-prefixes=GCN,GREEDY %s

# REQUIRES: global-isel

--- |
  define void @select_sss() { ret void }
  define void @select_ssv() { ret void }
  define void @select_svs() { ret void }
  define void @select_svv() { ret void }
  define void @select_vss() { ret void }
  define void @select_vsv() { ret void }
  define void @select_vvs() { ret void }
  define void @select_vvv() { ret void }
...

---
name: select_sss
legalized: true

# GCN-LABEL: name: select_sss
# GCN: [[SGPR0:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
# GCN: [[SGPR1:%[0-9]+]]:sgpr(s32) = COPY $sgpr1
# GCN: [[SGPR2:%[0-9]+]]:sgpr(s32) = COPY $sgpr2
# GCN: [[SGPR3:%[0-9]+]]:sgpr(s32) = COPY $sgpr3
# GCN: [[SCC:%[0-9]+]]:scc(s1) = G_ICMP intpred(ne), [[SGPR0]](s32), [[SGPR1]]
# GCN: {{%[0-9]+}}:sgpr(s32) = G_SELECT [[SCC]](s1), [[SGPR2]], [[SGPR3]]

body: |
  bb.0:
    liveins: $sgpr0, $sgpr1, $sgpr2, $sgpr3
    %0:_(s32) = COPY $sgpr0
    %1:_(s32) = COPY $sgpr1
    %2:_(s32) = COPY $sgpr2
    %3:_(s32) = COPY $sgpr3
    %4:_(s1) = G_ICMP intpred(ne), %0, %1
    %5:_(s32) = G_SELECT %4, %2, %3
...

---
name: select_ssv
legalized: true

# GCN-LABEL: name: select_ssv
# GCN: [[SGPR0:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
# GCN: [[SGPR1:%[0-9]+]]:sgpr(s32) = COPY $sgpr1
# GCN: [[SGPR2:%[0-9]+]]:sgpr(s32) = COPY $sgpr2
# GCN: [[VGPR0:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
# GCN: [[SCC:%[0-9]+]]:scc(s1) = G_ICMP intpred(ne), [[SGPR0]](s32), [[SGPR1]]
# GCN: [[SCC_S:%[0-9]+]]:sgpr(s1) = COPY [[SCC]]
# FAST:   [[SGPR2_V:%[0-9]+]]:vgpr(s32) = COPY [[SGPR2]]
# FAST:   {{%[0-9]+}}:vgpr(s32) = G_SELECT [[SCC_S]](s1), [[SGPR2_V]], [[VGPR0]]
# GREEDY: {{%[0-9]+}}:vgpr(s32) = G_SELECT [[SCC_S]](s1), [[SGPR2]], [[VGPR0]]

body: |
  bb.0:
    liveins: $sgpr0, $sgpr1, $sgpr2, $vgpr0
    %0:_(s32) = COPY $sgpr0
    %1:_(s32) = COPY $sgpr1
    %2:_(s32) = COPY $sgpr2 
    %3:_(s32) = COPY $vgpr0
    %4:_(s1) = G_ICMP intpred(ne), %0, %1
    %5:_(s32) = G_SELECT %4, %2, %3

...

---
name: select_svs
legalized: true

# GCN-LABEL: name: select_svs
# GCN: [[SGPR0:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
# GCN: [[SGPR1:%[0-9]+]]:sgpr(s32) = COPY $sgpr1
# GCN: [[SGPR2:%[0-9]+]]:sgpr(s32) = COPY $sgpr2
# GCN: [[VGPR0:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
# GCN: [[SCC:%[0-9]+]]:scc(s1) = G_ICMP intpred(ne), [[SGPR0]](s32), [[SGPR1]]
# GCN: [[SCC_S:%[0-9]+]]:sgpr(s1) = COPY [[SCC]]
# FAST:   [[SGPR2_V:%[0-9]+]]:vgpr(s32) = COPY [[SGPR2]]
# FAST:   {{%[0-9]+}}:vgpr(s32) = G_SELECT [[SCC_S]](s1), [[VGPR0]], [[SGPR2_V]]
# GREEDY: {{%[0-9]+}}:vgpr(s32) = G_SELECT [[SCC_S]](s1), [[VGPR0]], [[SGPR2]]

body: |
  bb.0:
    liveins: $sgpr0, $sgpr1, $sgpr2, $vgpr0
    %0:_(s32) = COPY $sgpr0
    %1:_(s32) = COPY $sgpr1
    %2:_(s32) = COPY $sgpr2
    %3:_(s32) = COPY $vgpr0
    %4:_(s1) = G_ICMP intpred(ne), %0, %1
    %5:_(s32) = G_SELECT %4, %3, %2
...

---
name: select_svv
legalized: true

# GCN-LABEL: name: select_svv
# GCN: [[SGPR0:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
# GCN: [[SGPR1:%[0-9]+]]:sgpr(s32) = COPY $sgpr1
# GCN: [[VGPR0:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
# GCN: [[VGPR1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
# GCN: [[SCC:%[0-9]+]]:scc(s1) = G_ICMP intpred(ne), [[SGPR0]](s32), [[SGPR1]]
# GCN: [[SCC_S:%[0-9]+]]:sgpr(s1) = COPY [[SCC]]
# GCN: {{%[0-9]+}}:vgpr(s32) = G_SELECT [[SCC_S]](s1), [[VGPR0]], [[VGPR1]]

body: |
  bb.0:
    liveins: $sgpr0, $sgpr1, $vgpr0, $vgpr1
    %0:_(s32) = COPY $sgpr0
    %1:_(s32) = COPY $sgpr1
    %2:_(s32) = COPY $vgpr0
    %3:_(s32) = COPY $vgpr1
    %4:_(s1) = G_ICMP intpred(ne), %0, %1
    %5:_(s32) = G_SELECT %4, %2, %3
...

---
name: select_vss
legalized: true

# GCN-LABEL: name: select_vss
# GCN:  [[SGPR0:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
# GCN:  [[SGPR1:%[0-9]+]]:sgpr(s32) = COPY $sgpr1
# GCN:  [[VGPR0:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
# GCN:  [[VGPR1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
# GCN:  [[VCC:%[0-9]+]]:sgpr(s1) = G_ICMP intpred(ne), [[VGPR0]](s32), [[VGPR1]]
# FAST:  [[SGPR0_V:%[0-9]+]]:vgpr(s32) = COPY [[SGPR0]]
# GCN:  [[SGPR1_V:%[0-9]+]]:vgpr(s32) = COPY [[SGPR1]]
# FAST:  {{%[0-9]+}}:vgpr(s32) = G_SELECT [[VCC]](s1), [[SGPR0_V]], [[SGPR1_V]]
# GREDY: {{%[0-9]+}}:vgpr(s32) = G_SELECT [[VCC]](s1), [[SGPR0]], [[SGPR1_V]]

body: |
  bb.0:
    liveins: $sgpr0, $sgpr1, $vgpr0, $vgpr1
    %0:_(s32) = COPY $sgpr0
    %1:_(s32) = COPY $sgpr1
    %2:_(s32) = COPY $vgpr0
    %3:_(s32) = COPY $vgpr1
    %4:_(s1) = G_ICMP intpred(ne), %2, %3
    %5:_(s32) = G_SELECT %4, %0, %1
...

---
name: select_vsv
legalized: true

# GCN-LABEL: name: select_vsv
# GCN:  [[SGPR0:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
# GCN:  [[VGPR0:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
# GCN:  [[VGPR1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
# GCN:  [[VGPR2:%[0-9]+]]:vgpr(s32) = COPY $vgpr2
# GCN:  [[VCC:%[0-9]+]]:sgpr(s1) = G_ICMP intpred(ne), [[VGPR0]](s32), [[VGPR1]]
# FAST:   [[SGPR0_V:%[0-9]+]]:vgpr(s32) = COPY [[SGPR0]]
# FAST:   {{%[0-9]+}}:vgpr(s32) = G_SELECT [[VCC]](s1), [[SGPR0_V]], [[VGPR2]]
# GREEDY: {{%[0-9]+}}:vgpr(s32) = G_SELECT [[VCC]](s1), [[SGPR0]], [[VGPR2]]

body: |
  bb.0:
    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr2
    %0:_(s32) = COPY $sgpr0
    %1:_(s32) = COPY $vgpr0
    %2:_(s32) = COPY $vgpr1
    %3:_(s32) = COPY $vgpr2
    %4:_(s1) = G_ICMP intpred(ne), %1, %2
    %5:_(s32) = G_SELECT %4, %0, %3
...

---
name: select_vvs
legalized: true

# GCN-LABEL: name: select_vvs
# GCN:  [[SGPR0:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
# GCN:  [[VGPR0:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
# GCN:  [[VGPR1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
# GCN:  [[VGPR2:%[0-9]+]]:vgpr(s32) = COPY $vgpr2
# GCN:  [[VCC:%[0-9]+]]:sgpr(s1) = G_ICMP intpred(ne), [[VGPR0]](s32), [[VGPR1]]
# FAST:   [[SGPR0_V:%[0-9]+]]:vgpr(s32) = COPY [[SGPR0]]
# FAST:   {{%[0-9]+}}:vgpr(s32) = G_SELECT [[VCC]](s1), [[VGPR2]], [[SGPR0_V]]
# GREEDY: {{%[0-9]+}}:vgpr(s32) = G_SELECT [[VCC]](s1), [[VGPR2]], [[SGPR0]]

body: |
  bb.0:
    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr2
    %0:_(s32) = COPY $sgpr0
    %1:_(s32) = COPY $vgpr0
    %2:_(s32) = COPY $vgpr1
    %3:_(s32) = COPY $vgpr2
    %4:_(s1) = G_ICMP intpred(ne), %1, %2
    %5:_(s32) = G_SELECT %4, %3, %0
...

---
name: select_vvv
legalized: true

# GCN-LABEL: name: select_vvv
# GCN: [[VGPR0:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
# GCN: [[VGPR1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
# GCN: [[VGPR2:%[0-9]+]]:vgpr(s32) = COPY $vgpr2
# GCN: [[VGPR3:%[0-9]+]]:vgpr(s32) = COPY $vgpr3
# GCN: [[VCC:%[0-9]+]]:sgpr(s1) = G_ICMP intpred(ne), [[VGPR0]](s32), [[VGPR1]]
# GCN: {{%[0-9]+}}:vgpr(s32) = G_SELECT [[VCC]](s1), [[VGPR2]], [[VGPR3]]

body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s32) = COPY $vgpr2
    %3:_(s32) = COPY $vgpr3
    %4:_(s1) = G_ICMP intpred(ne), %0, %1
    %5:_(s32) = G_SELECT %4, %2, %3
...