160 lines
5.5 KiB
C++
160 lines
5.5 KiB
C++
/** @file MachPipeline.hpp
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*
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* Author: Roland Conybeare
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**/
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#pragma once
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//#include <cstdint>
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#include "xo/refcnt/Refcounted.hpp"
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#include "IrPipeline.hpp"
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#include "LlvmContext.hpp"
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#include "xo/expression/Expression.hpp"
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#include "xo/expression/ConstantInterface.hpp"
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#include "xo/expression/PrimitiveInterface.hpp"
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#include "xo/expression/Apply.hpp"
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#include "xo/expression/Lambda.hpp"
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#include "xo/expression/Variable.hpp"
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#include "KaleidoscopeJit.hpp"
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/* stuff from kaleidoscope.cpp */
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#include "llvm/ADT/APFloat.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/IRBuilder.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/PassManager.h"
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#include "llvm/IR/Type.h"
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#include "llvm/IR/Verifier.h"
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#include "llvm/Passes/PassBuilder.h"
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#include "llvm/Passes/StandardInstrumentations.h"
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#include "llvm/Support/TargetSelect.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Transforms/InstCombine/InstCombine.h"
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#include "llvm/Transforms/Scalar.h"
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#include "llvm/Transforms/Scalar/GVN.h"
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#include "llvm/Transforms/Scalar/Reassociate.h"
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#include "llvm/Transforms/Scalar/SimplifyCFG.h"
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namespace xo {
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namespace jit {
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/** @class MachPipeline
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* @brief just-in-time compiler for EGAD
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*
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* TODO: make module name a parameter?
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**/
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class MachPipeline : public ref::Refcount {
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public:
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using Expression = xo::ast::Expression;
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//using ConstantInterface = xo::ast::ConstantInterface;
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public:
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/* tracking KaleidoscopeJIT::Create() here.. */
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static llvm::Expected<std::unique_ptr<MachPipeline>> make_aux();
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static xo::ref::rp<MachPipeline> make();
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// ----- module access -----
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/** target triple = string describing target host for codegen **/
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const std::string & target_triple() const;
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/** append function names defined in attached module to *p_v
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*
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* (RC 15jun2024 - this part is working)
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**/
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std::vector<std::string> get_function_name_v();
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/** write state of execution session (all the associated dynamic libraries) **/
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void dump_execution_session();
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// ----- jit code generation -----
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llvm::Value * codegen_constant(ref::brw<xo::ast::ConstantInterface> expr);
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llvm::Function * codegen_primitive(ref::brw<xo::ast::PrimitiveInterface> expr);
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llvm::Value * codegen_apply(ref::brw<xo::ast::Apply> expr);
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llvm::Function * codegen_lambda(ref::brw<xo::ast::Lambda> expr);
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llvm::Value * codegen_variable(ref::brw<xo::ast::Variable> var);
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llvm::Value * codegen(ref::brw<Expression> expr);
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// ----- jit online execution -----
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/** add IR code in current module to JIT,
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* so that its available for execution
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**/
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void machgen_current_module();
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llvm::orc::ExecutorAddr lookup_symbol(const std::string & x);
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virtual void display(std::ostream & os) const;
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virtual std::string display_string() const;
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private:
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MachPipeline(std::unique_ptr<KaleidoscopeJIT> kal_jit);
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/* iniitialize native builder (i.e. for platform we're running on) */
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static void init_once();
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/** (re)create pipeline to turn expressions into llvm IR code **/
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void recreate_llvm_ir_pipeline();
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private:
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// ----- this part adapted from LLVM 19.0 KaleidoscopeJIT.hpp [wip] -----
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std::unique_ptr<KaleidoscopeJIT> kal_jit_;
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// ----- this part adapted from kaleidoscope.cpp -----
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/** everything bleow represents a pipeline
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* that takes expressions, and turns them into llvm IR.
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*
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* llvm IR can be added to running JIT by calling
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* kal_jit_.addModule()
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* Note that this makes the module itself unavailable to us
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**/
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xo::ref::rp<IrPipeline> ir_pipeline_;
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/** owns + manages core "global" llvm data,
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* including type- and constant- unique-ing tables.
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*
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* Not threadsafe, but ok to have multiple threads,
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* each with its own LLVMContext
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**/
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ref::rp<LlvmContext> llvm_cx_;
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//std::unique_ptr<llvm::LLVMContext> llvm_cx_;
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/** builder for intermediate-representation objects **/
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std::unique_ptr<llvm::IRBuilder<>> llvm_ir_builder_;
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/** a module (1:1 with library) being prepared by llvm.
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* IR-level -- does not contain machine code
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*
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* - function names are unique within a module.
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**/
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std::unique_ptr<llvm::Module> llvm_module_;
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/** map global names to functions/variables **/
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std::map<std::string, xo::ref::rp<Expression>> global_env_;
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/** map variable names (formal parameters) to
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* corresponding llvm interactor
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*
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* only supports one level atm (i.e. only top-level functions)
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**/
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std::map<std::string, llvm::Value*> nested_env_;
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}; /*MachPipeline*/
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inline std::ostream &
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operator<<(std::ostream & os, const MachPipeline & x) {
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x.display(os);
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return os;
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}
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} /*namespace jit*/
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} /*namespace xo*/
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/** end MachPipeline.hpp **/
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