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104 lines
2.8 KiB
104 lines
2.8 KiB
4 months ago
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# RUN: llc -march=amdgcn -mcpu=gfx803 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefixes=GCN,GFX8 %s
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# RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefixes=GCN,GFX9 %s
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--- |
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define amdgpu_ps void @irreducible_loop() {
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ret void
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}
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define amdgpu_ps void @irreducible_loop_extended() {
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ret void
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}
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...
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---
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# GCN-LABEL: name: irreducible_loop{{$}}
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# GCN: S_LOAD_DWORDX4_IMM
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# GFX8: S_WAITCNT 127{{$}}
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# GFX9: S_WAITCNT 49279{{$}}
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# GCN: S_BUFFER_LOAD_DWORD_IMM
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# GFX8: S_WAITCNT 127{{$}}
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# GFX9: S_WAITCNT 49279{{$}}
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# GCN: S_CMP_GE_I32
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name: irreducible_loop
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body: |
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bb.0:
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successors: %bb.3, %bb.2
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S_CBRANCH_VCCZ %bb.2, implicit $vcc
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S_BRANCH %bb.3
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bb.1:
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successors: %bb.3, %bb.2
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S_CBRANCH_VCCNZ %bb.3, implicit $vcc
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bb.2:
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successors: %bb.3
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renamable $sgpr4_sgpr5_sgpr6_sgpr7 = S_LOAD_DWORDX4_IMM renamable $sgpr0_sgpr1, 0, 0, 0
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renamable $sgpr3 = S_BUFFER_LOAD_DWORD_IMM killed renamable $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0
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bb.3:
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successors: %bb.1, %bb.4
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S_CMP_GE_I32 renamable $sgpr2, renamable $sgpr3, implicit-def $scc
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S_CBRANCH_SCC0 %bb.1, implicit killed $scc
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bb.4:
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S_ENDPGM 0
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...
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# GCN-LABEL: name: irreducible_loop_extended
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# GCN: S_LOAD_DWORDX4_IMM
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# GFX8: S_WAITCNT 127{{$}}
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# GFX9: S_WAITCNT 49279{{$}}
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# GCN: BUFFER_STORE_DWORD_OFFEN_exact
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# GFX8: S_WAITCNT 127{{$}}
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# GFX9: S_WAITCNT 49279{{$}}
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# GCN: BUFFER_STORE_DWORD_OFFEN_exact
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# GCN: S_LOAD_DWORDX4_IMM
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# GFX8: S_WAITCNT 127{{$}}
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# GFX9: S_WAITCNT 49279{{$}}
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# GCN: BUFFER_ATOMIC_ADD_OFFSET_RTN
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# GCN: S_WAITCNT 3952
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# GCN: FLAT_STORE_DWORD
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# GCN: S_ENDPGM 0
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name: irreducible_loop_extended
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body: |
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bb.0:
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successors: %bb.1, %bb.2
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$sgpr4_sgpr5_sgpr6_sgpr7 = S_LOAD_DWORDX4_IMM renamable $sgpr2_sgpr3, 0, 0, 0
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S_CBRANCH_VCCZ %bb.2, implicit $vcc
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bb.1:
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successors: %bb.2
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BUFFER_STORE_DWORD_OFFEN_exact killed renamable $vgpr3, renamable $vgpr2, renamable $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, 0, 0, 0, implicit $exec
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bb.2:
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successors: %bb.3, %bb.6
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S_CBRANCH_VCCNZ %bb.6, implicit $vcc
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bb.3:
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successors: %bb.4, %bb.5
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BUFFER_STORE_DWORD_OFFEN_exact killed renamable $vgpr3, killed renamable $vgpr2, killed renamable $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, 0, 0, 0, implicit $exec
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S_CBRANCH_VCCNZ %bb.5, implicit $vcc
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bb.4:
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successors: %bb.5
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renamable $sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX4_IMM killed renamable $sgpr2_sgpr3, 64, 0, 0
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renamable $vgpr2 = BUFFER_ATOMIC_ADD_OFFSET_RTN killed renamable $vgpr2, killed renamable $sgpr12_sgpr13_sgpr14_sgpr15, 0, 0, 1, 0, implicit $exec
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bb.5:
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successors: %bb.6
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bb.6:
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FLAT_STORE_DWORD $vgpr3_vgpr4, $vgpr2, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
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S_ENDPGM 0
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...
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