derek.holloway
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56 lines
2.7 KiB
YAML
56 lines
2.7 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass=si-insert-waitcnts %s -o - | FileCheck -check-prefix=GCN %s
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# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -passes=si-insert-waitcnts %s -o - | FileCheck -check-prefix=GCN %s
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# $sgpr30_sgpr31 will hold the return address. We need a waitcnt before SI_CALL so
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# that the return address is not clobbered in the callee by the outstanding load.
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--- |
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define amdgpu_kernel void @call_waw_waitcnt() #0 {
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%1 = call i32 @func()
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ret void
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}
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declare hidden i32 @func() #0
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attributes #0 = { nounwind }
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...
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---
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name: call_waw_waitcnt
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $sgpr4_sgpr5, $sgpr7, $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-LABEL: name: call_waw_waitcnt
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; GCN: liveins: $sgpr4_sgpr5, $sgpr7, $sgpr0_sgpr1_sgpr2_sgpr3
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; GCN-NEXT: {{ $}}
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; GCN-NEXT: S_WAITCNT .Vmcnt_0_Expcnt_0_Lgkmcnt_0
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; GCN-NEXT: $sgpr30_sgpr31 = S_LOAD_DWORDX2_IMM $sgpr4_sgpr5, 0, 0
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; GCN-NEXT: $sgpr33 = S_MOV_B32 killed $sgpr7
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; GCN-NEXT: $flat_scr_lo = S_ADD_U32 killed $sgpr4, $sgpr33, implicit-def $scc
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; GCN-NEXT: $flat_scr_hi = S_ADDC_U32 killed $sgpr5, 0, implicit-def $scc, implicit killed $scc
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; GCN-NEXT: BUNDLE implicit-def $sgpr4_sgpr5, implicit-def $sgpr4, implicit-def $sgpr5, implicit-def $scc {
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; GCN-NEXT: $sgpr4_sgpr5 = S_GETPC_B64
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; GCN-NEXT: $sgpr4 = S_ADD_U32 internal $sgpr4, target-flags(amdgpu-rel32-lo) @func + 4, implicit-def $scc
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; GCN-NEXT: $sgpr5 = S_ADDC_U32 internal $sgpr5, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def $scc, implicit internal $scc
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; GCN-NEXT: }
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; GCN-NEXT: $sgpr32 = S_MOV_B32 $sgpr33
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; GCN-NEXT: S_WAITCNT .Lgkmcnt_0
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; GCN-NEXT: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def dead $vgpr0
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; GCN-NEXT: S_ENDPGM 0
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$sgpr30_sgpr31 = S_LOAD_DWORDX2_IMM $sgpr4_sgpr5, 0, 0
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$sgpr33 = S_MOV_B32 killed $sgpr7
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$flat_scr_lo = S_ADD_U32 killed $sgpr4, $sgpr33, implicit-def $scc
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$flat_scr_hi = S_ADDC_U32 killed $sgpr5, 0, implicit-def $scc, implicit killed $scc
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BUNDLE implicit-def $sgpr4_sgpr5, implicit-def $sgpr4, implicit-def $sgpr5, implicit-def $scc {
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$sgpr4_sgpr5 = S_GETPC_B64
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$sgpr4 = S_ADD_U32 internal $sgpr4, target-flags(amdgpu-rel32-lo) @func + 4, implicit-def $scc
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$sgpr5 = S_ADDC_U32 internal $sgpr5, target-flags(amdgpu-rel32-hi) @func + 4, implicit-def $scc, implicit internal $scc
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}
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$sgpr32 = S_MOV_B32 $sgpr33
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dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr4_sgpr5, @func, csr_amdgpu, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def dead $vgpr0
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S_ENDPGM 0
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...
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