659887b405
A future change will add SCC liveness checks. Since we are still relying on forward register scavenging, add dead flags to avoid spuriously detecting SCC as live.
136 lines
7.7 KiB
YAML
136 lines
7.7 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=si-lower-sgpr-spills,prologepilog,machine-cp -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
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# Make sure the initial first $sgpr1 = COPY $sgpr2 copy is not deleted
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# by the copy propagation after lowering the spill.
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---
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name: spill_sgpr128_use_subreg
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tracksRegLiveness: true
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machineFunctionInfo:
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hasSpilledSGPRs: true
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scratchRSrcReg: $sgpr100_sgpr101_sgpr102_sgpr103
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stackPtrOffsetReg: $sgpr32
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stack:
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- { id: 0, stack-id: sgpr-spill, type: spill-slot, size: 16, alignment: 4 }
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body: |
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bb.0:
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liveins: $sgpr0, $sgpr1, $sgpr2, $sgpr3, $sgpr4, $sgpr5, $sgpr6, $sgpr7, $vgpr0, $vgpr1, $vgpr2, $vgpr3
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; GCN-LABEL: name: spill_sgpr128_use_subreg
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; GCN: liveins: $sgpr0, $sgpr1, $sgpr2, $sgpr3, $sgpr4, $sgpr5, $sgpr6, $sgpr7, $vgpr0, $vgpr1, $vgpr2, $vgpr3
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; GCN-NEXT: {{ $}}
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; GCN-NEXT: $sgpr8_sgpr9 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.1, addrspace 5)
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; GCN-NEXT: $exec = S_MOV_B64 killed $sgpr8_sgpr9
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; GCN-NEXT: renamable $sgpr1 = COPY $sgpr2
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr0, 0, $vgpr0, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr1, 1, $vgpr0, implicit $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr2, 2, $vgpr0, implicit $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr3, 3, $vgpr0, implicit $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: renamable $sgpr8 = COPY killed renamable $sgpr1
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; GCN-NEXT: $sgpr0_sgpr1 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
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; GCN-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.1, addrspace 5)
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; GCN-NEXT: $exec = S_MOV_B64 killed $sgpr0_sgpr1
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; GCN-NEXT: S_ENDPGM 0, implicit $sgpr8
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renamable $sgpr1 = COPY $sgpr2
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SI_SPILL_S128_SAVE renamable $sgpr0_sgpr1_sgpr2_sgpr3, %stack.0, implicit $exec, implicit $sgpr32 :: (store (s128) into %stack.0, align 4, addrspace 5)
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renamable $sgpr8 = COPY killed renamable $sgpr1
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S_ENDPGM 0, implicit $sgpr8
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...
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---
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name: spill_sgpr128_use_kill
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tracksRegLiveness: true
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machineFunctionInfo:
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hasSpilledSGPRs: true
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scratchRSrcReg: $sgpr100_sgpr101_sgpr102_sgpr103
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stackPtrOffsetReg: $sgpr32
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stack:
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- { id: 0, stack-id: sgpr-spill, type: spill-slot, size: 16, alignment: 4 }
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body: |
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bb.0:
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liveins: $sgpr0, $sgpr1, $sgpr2, $sgpr3, $sgpr4, $sgpr5, $sgpr6, $sgpr7, $vgpr0, $vgpr1, $vgpr2, $vgpr3
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; GCN-LABEL: name: spill_sgpr128_use_kill
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; GCN: liveins: $sgpr0, $sgpr1, $sgpr2, $sgpr3, $sgpr4, $sgpr5, $sgpr6, $sgpr7, $vgpr0, $vgpr1, $vgpr2, $vgpr3
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; GCN-NEXT: {{ $}}
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; GCN-NEXT: $sgpr8_sgpr9 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.1, addrspace 5)
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; GCN-NEXT: $exec = S_MOV_B64 killed $sgpr8_sgpr9
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; GCN-NEXT: renamable $sgpr1 = COPY $sgpr2
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr0, 0, $vgpr0, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr1, 1, $vgpr0, implicit $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr2, 2, $vgpr0, implicit $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: $vgpr0 = V_WRITELANE_B32 killed $sgpr3, 3, $vgpr0, implicit killed $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: $sgpr0_sgpr1 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
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; GCN-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.1, addrspace 5)
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; GCN-NEXT: $exec = S_MOV_B64 killed $sgpr0_sgpr1
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; GCN-NEXT: S_ENDPGM 0
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renamable $sgpr1 = COPY $sgpr2
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SI_SPILL_S128_SAVE renamable killed $sgpr0_sgpr1_sgpr2_sgpr3, %stack.0, implicit $exec, implicit $sgpr32 :: (store (s128) into %stack.0, align 4, addrspace 5)
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S_ENDPGM 0
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...
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---
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name: spill_vgpr128_use_subreg
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tracksRegLiveness: true
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machineFunctionInfo:
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scratchRSrcReg: $sgpr100_sgpr101_sgpr102_sgpr103
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stackPtrOffsetReg: $sgpr32
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stack:
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- { id: 0, type: spill-slot, size: 16, alignment: 4 }
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body: |
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bb.0:
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liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7
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; GCN-LABEL: name: spill_vgpr128_use_subreg
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; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7
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; GCN-NEXT: {{ $}}
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; GCN-NEXT: renamable $vgpr1 = COPY $vgpr2
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET $vgpr0, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 0, 0, 0, 0, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0, addrspace 5)
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET $vgpr1, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 4, 0, 0, 0, implicit $exec, implicit $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0 + 4, addrspace 5)
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET $vgpr2, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 8, 0, 0, 0, implicit $exec, implicit $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0 + 8, addrspace 5)
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET $vgpr3, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 12, 0, 0, 0, implicit $exec, implicit $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0 + 12, addrspace 5)
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; GCN-NEXT: renamable $vgpr8 = COPY killed renamable $vgpr1
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; GCN-NEXT: S_ENDPGM 0, implicit $vgpr8
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renamable $vgpr1 = COPY $vgpr2
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SI_SPILL_V128_SAVE renamable $vgpr0_vgpr1_vgpr2_vgpr3, %stack.0, $sgpr32, 0, implicit $exec :: (store (s128) into %stack.0, align 4, addrspace 5)
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renamable $vgpr8 = COPY killed renamable $vgpr1
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S_ENDPGM 0, implicit $vgpr8
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...
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---
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name: spill_vgpr128_use_kill
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tracksRegLiveness: true
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machineFunctionInfo:
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scratchRSrcReg: $sgpr100_sgpr101_sgpr102_sgpr103
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stackPtrOffsetReg: $sgpr32
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stack:
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- { id: 0, type: spill-slot, size: 16, alignment: 4 }
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body: |
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bb.0:
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liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7
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; GCN-LABEL: name: spill_vgpr128_use_kill
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; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7
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; GCN-NEXT: {{ $}}
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; GCN-NEXT: renamable $vgpr1 = COPY $vgpr2
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 0, 0, 0, 0, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0, addrspace 5)
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr1, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 4, 0, 0, 0, implicit $exec, implicit $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0 + 4, addrspace 5)
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 8, 0, 0, 0, implicit $exec, implicit $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0 + 8, addrspace 5)
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; GCN-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr3, $sgpr100_sgpr101_sgpr102_sgpr103, $sgpr32, 12, 0, 0, 0, implicit $exec, implicit killed $vgpr0_vgpr1_vgpr2_vgpr3 :: (store (s32) into %stack.0 + 12, addrspace 5)
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; GCN-NEXT: S_ENDPGM 0
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renamable $vgpr1 = COPY $vgpr2
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SI_SPILL_V128_SAVE renamable killed $vgpr0_vgpr1_vgpr2_vgpr3, %stack.0, $sgpr32, 0, implicit $exec :: (store (s128) into %stack.0, align 4, addrspace 5)
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S_ENDPGM 0
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...
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