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[AMDGPU] Cluster export instructions in PostRA Scheduler (#141399)

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DAG mutation needs to be applied post-RA to maintain order established
during pre-RA scheduler.
This commit is contained in:
Carl Ritson 2025-05-26 18:00:43 +09:00 committed by GitHub
parent b231e5ff50
commit e6b43bdde3
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GPG Key ID: B5690EEEBB952194
2 changed files with 3 additions and 2 deletions
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1
llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
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@ -1129,6 +1129,7 @@ GCNTargetMachine::createPostMachineScheduler(MachineSchedContext *C) const {
getOptLevel() >= CodeGenOptLevel::Less) && getOptLevel() >= CodeGenOptLevel::Less) &&
EnableVOPD) EnableVOPD)
DAG->addMutation(createVOPDPairingMutation()); DAG->addMutation(createVOPDPairingMutation());
DAG->addMutation(createAMDGPUExportClusteringDAGMutation());
return DAG; return DAG;
} }
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//

4
llvm/test/CodeGen/AMDGPU/export-cluster-postra.mir
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@ -23,12 +23,12 @@ body: |
; CHECK-NEXT: } ; CHECK-NEXT: }
; CHECK-NEXT: $vgpr6 = nofpexcept V_CVT_PKRTZ_F16_F32_e64 0, killed $vgpr6, 0, 1065353216, 0, 0, implicit $mode, implicit $exec ; CHECK-NEXT: $vgpr6 = nofpexcept V_CVT_PKRTZ_F16_F32_e64 0, killed $vgpr6, 0, 1065353216, 0, 0, implicit $mode, implicit $exec
; CHECK-NEXT: $vgpr5 = nofpexcept V_CVT_PKRTZ_F16_F32_e64 0, killed $vgpr5, 0, 1065353216, 0, 0, implicit $mode, implicit $exec ; CHECK-NEXT: $vgpr5 = nofpexcept V_CVT_PKRTZ_F16_F32_e64 0, killed $vgpr5, 0, 1065353216, 0, 0, implicit $mode, implicit $exec
; CHECK-NEXT: EXP 0, killed $vgpr0, killed $vgpr6, undef $vgpr0, undef $vgpr0, -1, 0, 3, implicit $exec
; CHECK-NEXT: EXP 1, killed $vgpr1, killed $vgpr5, undef $vgpr0, undef $vgpr0, -1, 0, 3, implicit $exec
; CHECK-NEXT: $vgpr7 = nnan nsz arcp contract afn reassoc nofpexcept V_MUL_F32_e32 killed $sgpr0, $vgpr2, implicit $mode, implicit $exec ; CHECK-NEXT: $vgpr7 = nnan nsz arcp contract afn reassoc nofpexcept V_MUL_F32_e32 killed $sgpr0, $vgpr2, implicit $mode, implicit $exec
; CHECK-NEXT: $vgpr2 = nnan nsz arcp contract afn reassoc nofpexcept V_ADD_F32_e64 0, killed $vgpr2, 0, killed $sgpr1, 1, 0, implicit $mode, implicit $exec ; CHECK-NEXT: $vgpr2 = nnan nsz arcp contract afn reassoc nofpexcept V_ADD_F32_e64 0, killed $vgpr2, 0, killed $sgpr1, 1, 0, implicit $mode, implicit $exec
; CHECK-NEXT: $vgpr3 = nofpexcept V_CVT_PKRTZ_F16_F32_e32 killed $vgpr7, killed $vgpr3, implicit $mode, implicit $exec ; CHECK-NEXT: $vgpr3 = nofpexcept V_CVT_PKRTZ_F16_F32_e32 killed $vgpr7, killed $vgpr3, implicit $mode, implicit $exec
; CHECK-NEXT: $vgpr2 = nofpexcept V_CVT_PKRTZ_F16_F32_e32 killed $vgpr4, killed $vgpr2, implicit $mode, implicit $exec ; CHECK-NEXT: $vgpr2 = nofpexcept V_CVT_PKRTZ_F16_F32_e32 killed $vgpr4, killed $vgpr2, implicit $mode, implicit $exec
; CHECK-NEXT: EXP 0, killed $vgpr0, killed $vgpr6, undef $vgpr0, undef $vgpr0, -1, 0, 3, implicit $exec
; CHECK-NEXT: EXP 1, killed $vgpr1, killed $vgpr5, undef $vgpr0, undef $vgpr0, -1, 0, 3, implicit $exec
; CHECK-NEXT: EXP_DONE 2, killed $vgpr3, killed $vgpr2, undef $vgpr0, undef $vgpr0, -1, 0, 3, implicit $exec ; CHECK-NEXT: EXP_DONE 2, killed $vgpr3, killed $vgpr2, undef $vgpr0, undef $vgpr0, -1, 0, 3, implicit $exec
BUNDLE implicit-def $sgpr0, implicit-def $sgpr1, implicit $sgpr8_sgpr9_sgpr10_sgpr11 { BUNDLE implicit-def $sgpr0, implicit-def $sgpr1, implicit $sgpr8_sgpr9_sgpr10_sgpr11 {
$sgpr0 = S_BUFFER_LOAD_DWORD_IMM $sgpr8_sgpr9_sgpr10_sgpr11, 20, 0 :: (dereferenceable invariant load (s32)) $sgpr0 = S_BUFFER_LOAD_DWORD_IMM $sgpr8_sgpr9_sgpr10_sgpr11, 20, 0 :: (dereferenceable invariant load (s32))