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[AMDGPU] Use amdgpu-enable-sw-lower-lds flag to enable pass
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llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp

Lines changed: 6 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -339,6 +339,10 @@ static cl::opt<bool, true> EnableLowerModuleLDS(
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cl::location(AMDGPUTargetMachine::EnableLowerModuleLDS), cl::init(true),
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cl::Hidden);
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342+
static cl::opt<bool> EnableSwLowerLDS("amdgpu-enable-sw-lower-lds",
343+
cl::desc("Enable sw lower lds pass"),
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cl::init(true), cl::Hidden);
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static cl::opt<bool> EnablePreRAOptimizations(
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"amdgpu-enable-pre-ra-optimizations",
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cl::desc("Enable Pre-RA optimizations pass"), cl::init(true),
@@ -600,12 +604,7 @@ AMDGPUTargetMachine::AMDGPUTargetMachine(const Target &T, const Triple &TT,
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bool AMDGPUTargetMachine::EnableLateStructurizeCFG = false;
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bool AMDGPUTargetMachine::EnableFunctionCalls = false;
603-
#if __has_feature(address_sanitizer)
604-
bool AMDGPUTargetMachine::EnableLowerModuleLDS = false;
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EnableLowerModuleLDS = false;
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#else
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bool AMDGPUTargetMachine::EnableLowerModuleLDS = true;
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#endif
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bool AMDGPUTargetMachine::DisableStructurizer = false;
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AMDGPUTargetMachine::~AMDGPUTargetMachine() = default;
@@ -677,8 +676,8 @@ void AMDGPUTargetMachine::registerPassBuilderCallbacks(
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PB.registerPipelineEarlySimplificationEPCallback(
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[](ModulePassManager &PM, OptimizationLevel Level) {
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PM.addPass(AMDGPUPrintfRuntimeBindingPass());
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681-
PM.addPass(AMDGPUSwLowerLDSPass());
679+
if (EnableSwLowerLDS)
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PM.addPass(AMDGPUSwLowerLDSPass());
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if (Level == OptimizationLevel::O0)
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return;

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