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[BACKEND] Move struct optimization down the LLVM pipeline #2312

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Merged
ptillet merged 1 commit into from
Sep 16, 2023
Merged

[BACKEND] Move struct optimization down the LLVM pipeline #2312

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14 changes: 8 additions & 6 deletions lib/Target/LLVMIR/LLVMIRTranslation.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -122,12 +122,14 @@ makeOptimizingPipeline(unsigned optLevel, unsigned sizeLevel,
pb.crossRegisterProxies(lam, fam, cgam, mam);

ModulePassManager mpm;
llvm::FunctionPassManager fpm;
// Triton generates large structure of scalars which may pessimise
// optimizations, we run a pass to break up phi of struct to make sure all
// the struct are removed for the following passes.
fpm.addPass(BreakStructPhiNodesPass());
mpm.addPass(createModuleToFunctionPassAdaptor(std::move(fpm)));
pb.registerVectorizerStartEPCallback(
[&](llvm::FunctionPassManager &fpm, llvm::OptimizationLevel level) {
// Triton generates large structure of scalars which may pessimise
// optimizations, we run a pass to break up phi of struct to make sure
// all the struct are removed for the following passes.
fpm.addPass(BreakStructPhiNodesPass());
fpm.addPass(InstCombinePass());
});
mpm.addPass(pb.buildPerModuleDefaultPipeline(*ol));
mpm.run(*m, mam);
return Error::success();
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