forked from OSchip/llvm-project
114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
//===- tco.cpp - Tilikum Crossing Opt ---------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This is to be like LLVM's opt program, only for FIR. Such a program is
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// required for roundtrip testing, etc.
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//
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//===----------------------------------------------------------------------===//
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#include "flang/Optimizer/Dialect/FIRDialect.h"
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#include "flang/Optimizer/Support/KindMapping.h"
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#include "mlir/IR/MLIRContext.h"
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#include "mlir/IR/Module.h"
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#include "mlir/Parser.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Pass/PassManager.h"
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#include "mlir/Transforms/Passes.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/InitLLVM.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/ToolOutputFile.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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static cl::opt<std::string>
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inputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
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static cl::opt<std::string> outputFilename("o",
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cl::desc("Specify output filename"),
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cl::value_desc("filename"),
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cl::init("-"));
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static cl::opt<bool> emitFir("emit-fir",
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cl::desc("Parse and pretty-print the input"),
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cl::init(false));
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static void printModuleBody(mlir::ModuleOp mod, raw_ostream &output) {
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for (auto &op : mod.getBody()->without_terminator())
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output << op << '\n';
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}
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// compile a .fir file
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static int compileFIR() {
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// check that there is a file to load
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ErrorOr<std::unique_ptr<MemoryBuffer>> fileOrErr =
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MemoryBuffer::getFileOrSTDIN(inputFilename);
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if (std::error_code EC = fileOrErr.getError()) {
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errs() << "Could not open file: " << EC.message() << '\n';
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return 1;
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}
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// load the file into a module
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SourceMgr sourceMgr;
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sourceMgr.AddNewSourceBuffer(std::move(*fileOrErr), SMLoc());
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auto context = std::make_unique<mlir::MLIRContext>();
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auto owningRef = mlir::parseSourceFile(sourceMgr, context.get());
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if (!owningRef) {
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errs() << "Error can't load file " << inputFilename << '\n';
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return 2;
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}
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if (mlir::failed(owningRef->verify())) {
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errs() << "Error verifying FIR module\n";
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return 4;
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}
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std::error_code ec;
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ToolOutputFile out(outputFilename, ec, sys::fs::OF_None);
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// run passes
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mlir::PassManager pm{context.get()};
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mlir::applyPassManagerCLOptions(pm);
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if (emitFir) {
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// parse the input and pretty-print it back out
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// -emit-fir intentionally disables all the passes
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} else {
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// TODO: Actually add passes when added to FIR code base
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// add all the passes
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// the user can disable them individually
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}
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// run the pass manager
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if (mlir::succeeded(pm.run(*owningRef))) {
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// passes ran successfully, so keep the output
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if (emitFir)
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printModuleBody(*owningRef, out.os());
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out.keep();
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return 0;
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}
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// pass manager failed
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printModuleBody(*owningRef, errs());
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errs() << "\n\nFAILED: " << inputFilename << '\n';
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return 8;
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}
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int main(int argc, char **argv) {
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fir::registerFIR();
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fir::registerFIRPasses();
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[[maybe_unused]] InitLLVM y(argc, argv);
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mlir::registerPassManagerCLOptions();
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mlir::PassPipelineCLParser passPipe("", "Compiler passes to run");
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cl::ParseCommandLineOptions(argc, argv, "Tilikum Crossing Optimizer\n");
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return compileFIR();
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}
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