inst-select-brcond.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -run-pass=instruction-select -global-isel-abort=2 -pass-remarks-missed='gisel*' -verify-machineinstrs %s -o - 2> %t | FileCheck -check-prefixes=GCN %s
# RUN: FileCheck -check-prefix=ERR %s < %t
# ERR-NOT: remark:
# ERR: remark: <unknown>:0:0: cannot select: G_BRCOND %1:sgpr(s1), %bb.1 (in function: brcond_sgpr)
# ERR-NEXT: remark: <unknown>:0:0: cannot select: G_BRCOND %1:vgpr(s1), %bb.1 (in function: brcond_vgpr)
# ERR-NOT: remark:
---
name: brcond_scc
legalized: true
regBankSelected: true
body: |
; GCN-LABEL: name: brcond_scc
; GCN: bb.0:
; GCN: successors: %bb.1(0x80000000)
; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
; GCN: [[COPY1:%[0-9]+]]:sreg_32 = COPY $sgpr1
; GCN: S_CMP_EQ_U32 [[COPY]], [[COPY1]], implicit-def $scc
; GCN: [[COPY2:%[0-9]+]]:sgpr_32 = COPY $scc
; GCN: $scc = COPY [[COPY2]]
; GCN: S_CBRANCH_SCC1 %bb.1, implicit $scc
; GCN: bb.1:
bb.0:
liveins: $sgpr0, $sgpr1
%0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s32) = COPY $sgpr1
%2:sgpr(s32) = G_ICMP intpred(eq), %0, %1
G_BRCOND %2, %bb.1
bb.1:
...
---
name: brcond_scc_impdef
legalized: true
regBankSelected: true
body: |
; GCN-LABEL: name: brcond_scc_impdef
; GCN: bb.0:
; GCN: successors: %bb.1(0x80000000)
; GCN: [[DEF:%[0-9]+]]:sgpr_32 = IMPLICIT_DEF
; GCN: $scc = COPY [[DEF]]
; GCN: S_CBRANCH_SCC1 %bb.1, implicit $scc
; GCN: bb.1:
bb.0:
liveins: $sgpr0, $sgpr1
%0:sgpr(s32) = G_IMPLICIT_DEF
G_BRCOND %0, %bb.1
bb.1:
...
---
name: brcond_scc_undef
legalized: true
regBankSelected: true
body: |
; GCN-LABEL: name: brcond_scc_undef
; GCN: bb.0:
; GCN: successors: %bb.1(0x80000000)
; GCN: $scc = COPY %0:sgpr_32
; GCN: S_CBRANCH_SCC1 %bb.1, implicit $scc
; GCN: bb.1:
bb.0:
liveins: $sgpr0, $sgpr1
G_BRCOND undef %0:sgpr(s32), %bb.1
bb.1:
...
---
name: brcond_scc_br
legalized: true
regBankSelected: true
body: |
; GCN-LABEL: name: brcond_scc_br
; GCN: bb.0:
; GCN: successors: %bb.1(0x80000000)
; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $sgpr0
; GCN: [[COPY1:%[0-9]+]]:sreg_32 = COPY $sgpr1
; GCN: S_CMP_EQ_U32 [[COPY]], [[COPY1]], implicit-def $scc
; GCN: [[COPY2:%[0-9]+]]:sgpr_32 = COPY $scc
; GCN: $scc = COPY [[COPY2]]
; GCN: S_CBRANCH_SCC1 %bb.1, implicit $scc
; GCN: S_BRANCH %bb.1
; GCN: bb.1:
; GCN: successors: %bb.2(0x80000000)
; GCN: bb.2:
bb.0:
liveins: $sgpr0, $sgpr1
%0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s32) = COPY $sgpr1
%2:sgpr(s32) = G_ICMP intpred(eq), %0, %1
G_BRCOND %2, %bb.1
G_BR %bb.1
bb.1:
bb.2:
...
---
name: brcond_vcc
legalized: true
regBankSelected: true
body: |
; GCN-LABEL: name: brcond_vcc
; GCN: bb.0:
; GCN: successors: %bb.1(0x80000000)
; GCN: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GCN: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64 = V_CMP_EQ_U32_e64 [[COPY]], [[COPY1]], implicit $exec
; GCN: $vcc = COPY [[V_CMP_EQ_U32_e64_]]
; GCN: S_CBRANCH_VCCNZ %bb.1, implicit $vcc
; GCN: bb.1:
bb.0:
liveins: $vgpr0, $vgpr1
%0:vgpr(s32) = COPY $vgpr0
%1:vgpr(s32) = COPY $vgpr1
%2:vcc(s1) = G_ICMP intpred(eq), %0, %1
G_BRCOND %2, %bb.1
bb.1:
...
# Don't try to select this.
---
name: brcond_sgpr
legalized: true
regBankSelected: true
body: |
; GCN-LABEL: name: brcond_sgpr
; GCN: bb.0:
; GCN: successors: %bb.1(0x80000000)
; GCN: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
; GCN: [[TRUNC:%[0-9]+]]:sgpr(s1) = G_TRUNC [[COPY]](s32)
; GCN: G_BRCOND [[TRUNC]](s1), %bb.1
; GCN: bb.1:
bb.0:
liveins: $sgpr0, $sgpr1
%0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s1) = G_TRUNC %0
G_BRCOND %1, %bb.1
bb.1:
...
# Don't try to select this.
---
name: brcond_vgpr
legalized: true
regBankSelected: true
body: |
; GCN-LABEL: name: brcond_vgpr
; GCN: bb.0:
; GCN: successors: %bb.1(0x80000000)
; GCN: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
; GCN: [[TRUNC:%[0-9]+]]:vgpr(s1) = G_TRUNC [[COPY]](s32)
; GCN: G_BRCOND [[TRUNC]](s1), %bb.1
; GCN: bb.1:
bb.0:
liveins: $vgpr0, $vgpr1
%0:vgpr(s32) = COPY $vgpr0
%1:vgpr(s1) = G_TRUNC %0
G_BRCOND %1, %bb.1
bb.1:
...