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Add 'xo-jit/' from commit '855887df71'

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git-subtree-dir: xo-jit
git-subtree-mainline: 35555df976
git-subtree-split: 855887df71
This commit is contained in:
Roland Conybeare 2025-05-11 01:54:47 -05:00
commit 757dfed99c
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55
xo-jit/src/jit/IrPipeline.cpp Normal file
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/* @file IrPipeline.cpp */
#include "IrPipeline.hpp"
namespace xo {
namespace jit {
IrPipeline::IrPipeline(rp<LlvmContext> llvm_cx)
{
using std::make_unique;
this->llvm_cx_ = std::move(llvm_cx);
this->llvm_fpmgr_ = make_unique<llvm::FunctionPassManager>();
this->llvm_lamgr_ = std::make_unique<llvm::LoopAnalysisManager>();
this->llvm_famgr_ = std::make_unique<llvm::FunctionAnalysisManager>();
this->llvm_cgamgr_ = std::make_unique<llvm::CGSCCAnalysisManager>();
this->llvm_mamgr_ = std::make_unique<llvm::ModuleAnalysisManager>();
this->llvm_pic_ = std::make_unique<llvm::PassInstrumentationCallbacks>();
/* reference kept alive by @ref llvm_cx_ */
this->llvm_si_ = std::make_unique<llvm::StandardInstrumentations>(llvm_cx_->llvm_cx_ref(),
/*DebugLogging*/ true);
this->llvm_si_->registerCallbacks(*llvm_pic_, llvm_mamgr_.get());
/** transform passes **/
this->llvm_fpmgr_->addPass(llvm::InstCombinePass());
/* NOTE: llvm 19 adds mem2reg transform here.
* speculating that PromotePass() does same/goodenough thing in llvm 18.
* This pays off, works first try!
*/
this->llvm_fpmgr_->addPass(llvm::PromotePass());
this->llvm_fpmgr_->addPass(llvm::ReassociatePass());
this->llvm_fpmgr_->addPass(llvm::GVNPass());
this->llvm_fpmgr_->addPass(llvm::SimplifyCFGPass());
/** tracking for analysis passes that share info? **/
llvm::PassBuilder llvm_pass_builder;
llvm_pass_builder.registerModuleAnalyses(*llvm_mamgr_);
llvm_pass_builder.registerFunctionAnalyses(*llvm_famgr_);
llvm_pass_builder.crossRegisterProxies(*llvm_lamgr_, *llvm_famgr_, *llvm_cgamgr_, *llvm_mamgr_);
} /*ctor*/
void
IrPipeline::run_pipeline(llvm::Function & fn)
{
llvm_fpmgr_->run(fn, *llvm_famgr_);
} /*run_pipeline*/
} /*namespace jit*/
} /*namespace xo*/
/* end IrPipeline.cpp */