181 lines
5.3 KiB
C++
181 lines
5.3 KiB
C++
#include "Lexer.h"
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#include "Parser.h"
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#include <llvm/Support/CommandLine.h>
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#include <llvm/Support/ErrorOr.h>
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#include <llvm/Support/MemoryBuffer.h>
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#include <llvm/Support/SourceMgr.h>
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#include <mlir/IR/OwningOpRef.h>
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#include <mlir/Parser/Parser.h>
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#include <mlir/Pass/PassManager.h>
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#include <mlir/Transforms/Passes.h>
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#include "Dialect.h"
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#include "MLIRGen.h"
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#include "Passes.h"
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namespace mlir
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{
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class ModuleOp;
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}
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static llvm::cl::opt<std::string> inputFilename(llvm::cl::Positional,
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llvm::cl::desc("<input hello file>"),
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llvm::cl::init("-"),
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llvm::cl::value_desc("filename"));
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namespace
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{
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enum Action { None, DumpSyntaxNode, DumpMLIR };
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enum InputType { Hello, MLIR };
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}
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/// The input file type
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static llvm::cl::opt<InputType> inputType("x", llvm::cl::init(Hello),
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llvm::cl::desc("Decided the kind of input desired."),
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llvm::cl::values(
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clEnumValN(Hello, "hello", "load the input file as a hello source.")),
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llvm::cl::values(
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clEnumValN(MLIR, "mlir", "load the input file as a mlir source.")));
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/// What is the action the compiler will do
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static llvm::cl::opt<Action> emitAction("emit", llvm::cl::desc("Select the kind of output desired"),
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llvm::cl::values(clEnumValN(DumpSyntaxNode, "ast", "Dump syntax node")),
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llvm::cl::values(clEnumValN(DumpMLIR, "mlir", "Dump mlir code")));
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static llvm::cl::opt<bool> enableOpt("opt", llvm::cl::desc("Enable optimizations"));
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std::unique_ptr<hello::Module> parseInputFile(llvm::StringRef filename)
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{
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> fileOrErr =
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llvm::MemoryBuffer::getFileOrSTDIN(filename);
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if (std::error_code ec = fileOrErr.getError())
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{
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llvm::errs() << "Could not open input file: " << ec.message() << "\n";
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return nullptr;
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}
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auto buffer = fileOrErr.get()->getBuffer();
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hello::LexerBuffer lexer(buffer.begin(), buffer.end(), std::string(filename));
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hello::Parser parser(lexer);
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return parser.parseModule();
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}
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int loadMLIR(llvm::SourceMgr& sourceManager, mlir::MLIRContext& context, mlir::OwningOpRef<mlir::ModuleOp>& module)
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{
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if (inputType != MLIR && !llvm::StringRef(inputFilename).ends_with(".mlir"))
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{
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auto syntaxNode = parseInputFile(inputFilename);
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if (syntaxNode == nullptr)
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{
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return 1;
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}
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module = hello::mlirGen(context, *syntaxNode);
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return module ? 0 : 1;
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}
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// Then the input file is mlir
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> fileOrErr =
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llvm::MemoryBuffer::getFileOrSTDIN(inputFilename);
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if (std::error_code ec = fileOrErr.getError())
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{
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llvm::errs() << "Could not open input file: " << ec.message() << "\n";
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return 1;
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}
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// Parse the input mlir.
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llvm::SourceMgr sourceMgr;
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sourceMgr.AddNewSourceBuffer(std::move(*fileOrErr), llvm::SMLoc());
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module =
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mlir::parseSourceFile<mlir::ModuleOp>(sourceMgr, &context);
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if (!module)
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{
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llvm::errs() << "Error can't load file " << inputFilename << "\n";
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return 1;
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}
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return 0;
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}
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int dumpMLIR()
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{
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mlir::MLIRContext context;
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context.getOrLoadDialect<mlir::hello::HelloDialect>();
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mlir::OwningOpRef<mlir::ModuleOp> module;
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llvm::SourceMgr sourceManager;
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if (int error = loadMLIR(sourceManager, context, module))
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{
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return error;
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}
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if (enableOpt)
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{
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mlir::PassManager manager(module.get()->getName());
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if (mlir::failed(mlir::applyPassManagerCLOptions(manager)))
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{
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return 1;
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}
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// To inline all functions except 'main' function.
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manager.addPass(mlir::createInlinerPass());
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// In the canonicalizer pass, we add Transpose Pass and Reshape Pass.
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mlir::OpPassManager& functionPassManager = manager.nest<mlir::hello::FuncOp>();
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functionPassManager.addPass(mlir::createCanonicalizerPass());
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functionPassManager.addPass(mlir::createCSEPass());
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functionPassManager.addPass(mlir::hello::createShapeInferencePass());
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if (mlir::failed(manager.run(*module)))
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{
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return 1;
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}
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module->print(llvm::outs());
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return 0;
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}
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module->print(llvm::outs());
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return 0;
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}
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int dumpSyntaxNode()
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{
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if (inputType == MLIR)
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{
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llvm::errs() << "Failed to dump hello syntax node when input type is MLIR.";
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return 1;
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}
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auto syntaxNode = parseInputFile(inputFilename);
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if (syntaxNode == nullptr)
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{
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return 1;
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}
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syntaxNode->dump();
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return 0;
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}
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int main(int argc, char** argv)
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{
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mlir::registerAsmPrinterCLOptions();
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mlir::registerMLIRContextCLOptions();
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mlir::registerPassManagerCLOptions();
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llvm::cl::ParseCommandLineOptions(argc, argv, "Hello MLIR Compiler\n");
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switch (emitAction)
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{
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case DumpSyntaxNode:
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return dumpSyntaxNode();
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case DumpMLIR:
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return dumpMLIR();
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default:
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llvm::errs() << "Unrecognized action\n";
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return 1;
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}
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}
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