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AMDGPU: Stop forcing RequiresCodeGenSCCOrder #169522

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Merged
merged 2 commits into from
Nov 25, 2025
+205 −217
Merged

AMDGPU: Stop forcing RequiresCodeGenSCCOrder #169522

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0c9a78b
AMDGPU: Remove DummyCGSCC use after buffer lowering passes
arsenm Nov 25, 2025
0c15968
AMDGPU: Stop forcing RequiresCodeGenSCCOrder
arsenm Nov 25, 2025
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7 changes: 0 additions & 7 deletions llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1226,10 +1226,6 @@ class GCNPassConfig final : public AMDGPUPassConfig {
public:
GCNPassConfig(TargetMachine &TM, PassManagerBase &PM)
: AMDGPUPassConfig(TM, PM) {
// It is necessary to know the register usage of the entire call graph. We
// allow calls without EnableAMDGPUFunctionCalls if they are marked
// noinline, so this is always required.
setRequiresCodeGenSCCOrder(true);
substitutePass(&PostRASchedulerID, &PostMachineSchedulerID);
}

Expand Down Expand Up @@ -1430,9 +1426,6 @@ void AMDGPUPassConfig::addCodeGenPrepare() {
// many cases.
addPass(createAMDGPULowerBufferFatPointersPass());
addPass(createAMDGPULowerIntrinsicsLegacyPass());
// In accordance with the above FIXME, manually force all the
// function-level passes into a CGSCCPassManager.
addPass(new DummyCGSCCPass());
}

// LowerSwitch pass may introduce unreachable blocks that can
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