inst-select-amdgcn.readfirstlane.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=tahiti -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=2 -pass-remarks-missed='gisel*' %s -o - 2> %t | FileCheck -check-prefix=GCN %s
# RUN: FileCheck -check-prefix=ERR %s < %t
# ERR: remark: <unknown>:0:0: cannot select: %1:sgpr(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.readfirstlane), %0:sgpr(s32) (in function: readfirstlane_s)
---
name: readfirstlane_v
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: readfirstlane_v
; GCN: liveins: $vgpr0
; GCN: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN: [[V_READFIRSTLANE_B32_:%[0-9]+]]:sreg_32 = V_READFIRSTLANE_B32 [[COPY]], implicit $exec
; GCN: S_ENDPGM 0, implicit [[V_READFIRSTLANE_B32_]]
%0:vgpr(s32) = COPY $vgpr0
%1:sgpr(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.readfirstlane), %0
S_ENDPGM 0, implicit %1
...
---
name: readfirstlane_v_imm
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
; GCN-LABEL: name: readfirstlane_v_imm
; GCN: [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY [[V_MOV_B32_e32_]]
; GCN: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 [[COPY]]
; GCN: S_ENDPGM 0, implicit [[S_MOV_B32_]]
%0:vgpr(s32) = G_CONSTANT i32 123
%1:sgpr(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.readfirstlane), %0
S_ENDPGM 0, implicit %1
...
# Make sure this fails to select
---
name: readfirstlane_s
legalized: true
regBankSelected: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0
; GCN-LABEL: name: readfirstlane_s
; GCN: liveins: $sgpr0
; GCN: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
; GCN: [[INT:%[0-9]+]]:sgpr(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.readfirstlane), [[COPY]](s32)
; GCN: S_ENDPGM 0, implicit [[INT]](s32)
%0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.readfirstlane), %0
S_ENDPGM 0, implicit %1
...