95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
//===- mlir-runner.cpp - MLIR CPU Execution Driver ------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Main entry point to a command line utility that executes an MLIR file on the
|
|
// CPU by translating MLIR to LLVM IR before JIT-compiling and executing the
|
|
// latter.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
|
|
#include "mlir/ExecutionEngine/JitRunner.h"
|
|
#include "mlir/ExecutionEngine/OptUtils.h"
|
|
#include "mlir/IR/Dialect.h"
|
|
#include "mlir/Target/LLVMIR/Dialect/All.h"
|
|
#include "mlir/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.h"
|
|
#include "mlir/Target/LLVMIR/Export.h"
|
|
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/Linker/Linker.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/InitLLVM.h"
|
|
#include "llvm/Support/TargetSelect.h"
|
|
|
|
using namespace mlir;
|
|
|
|
// TODO: Consider removing this linking functionality from the SPIR-V CPU Runner
|
|
// flow in favour of a more proper host/device split like other runners.
|
|
// https://github.com/llvm/llvm-project/issues/115348
|
|
static llvm::cl::opt<bool> LinkNestedModules(
|
|
"link-nested-modules",
|
|
llvm::cl::desc("Link two nested MLIR modules into a single LLVM IR module. "
|
|
"Useful if both the host and device code can be run on the "
|
|
"same CPU, as in SPIR-V CPU Runner tests."));
|
|
|
|
/// A utility function that builds llvm::Module from two nested MLIR modules.
|
|
///
|
|
/// module @main {
|
|
/// module @kernel {
|
|
/// // Some ops
|
|
/// }
|
|
/// // Some other ops
|
|
/// }
|
|
///
|
|
/// Each of these two modules is translated to LLVM IR module, then they are
|
|
/// linked together and returned.
|
|
static std::unique_ptr<llvm::Module>
|
|
convertMLIRModule(Operation *op, llvm::LLVMContext &context) {
|
|
auto module = dyn_cast<ModuleOp>(op);
|
|
if (!module)
|
|
return op->emitError("op must be a 'builtin.module"), nullptr;
|
|
|
|
std::unique_ptr<llvm::Module> kernelModule;
|
|
if (LinkNestedModules) {
|
|
// Verify that there is only one nested module.
|
|
auto modules = module.getOps<ModuleOp>();
|
|
if (!llvm::hasSingleElement(modules)) {
|
|
module.emitError("The module must contain exactly one nested module");
|
|
return nullptr;
|
|
}
|
|
|
|
// Translate nested module and erase it.
|
|
ModuleOp nested = *modules.begin();
|
|
kernelModule = translateModuleToLLVMIR(nested, context);
|
|
nested.erase();
|
|
}
|
|
|
|
std::unique_ptr<llvm::Module> mainModule =
|
|
translateModuleToLLVMIR(module, context);
|
|
|
|
if (LinkNestedModules)
|
|
llvm::Linker::linkModules(*mainModule, std::move(kernelModule));
|
|
|
|
return mainModule;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
llvm::InitLLVM y(argc, argv);
|
|
llvm::InitializeNativeTarget();
|
|
llvm::InitializeNativeTargetAsmPrinter();
|
|
llvm::InitializeNativeTargetAsmParser();
|
|
|
|
mlir::DialectRegistry registry;
|
|
mlir::registerAllToLLVMIRTranslations(registry);
|
|
|
|
mlir::JitRunnerConfig jitRunnerConfig;
|
|
jitRunnerConfig.llvmModuleBuilder = convertMLIRModule;
|
|
return mlir::JitRunnerMain(argc, argv, registry, jitRunnerConfig);
|
|
}
|