mlir/tools/mlir-vulkan-runner/mlir-vulkan-runner.cpp

//===- mlir-vulkan-runner.cpp - MLIR Vulkan 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
//
//===----------------------------------------------------------------------===//
//
// This is a command line utility that executes an MLIR file on the Vulkan by
// translating MLIR GPU module to SPIR-V and host part to LLVM IR before
// JIT-compiling and executing the latter.
//
//===----------------------------------------------------------------------===//

#include "mlir/Conversion/GPUToSPIRV/ConvertGPUToSPIRVPass.h"
#include "mlir/Conversion/GPUToVulkan/ConvertGPUToVulkanPass.h"
#include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVMPass.h"
#include "mlir/Conversion/StandardToSPIRV/ConvertStandardToSPIRVPass.h"
#include "mlir/Dialect/GPU/Passes.h"
#include "mlir/Dialect/SPIRV/Passes.h"
#include "mlir/Dialect/SPIRV/SPIRVOps.h"
#include "mlir/ExecutionEngine/JitRunner.h"
#include "mlir/ExecutionEngine/OptUtils.h"
#include "mlir/InitAllDialects.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Pass/PassManager.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/TargetSelect.h"

using namespace mlir;

static LogicalResult runMLIRPasses(ModuleOp module) {
  PassManager passManager(module.getContext());
  applyPassManagerCLOptions(passManager);

  passManager.addPass(createGpuKernelOutliningPass());
  passManager.addPass(createLegalizeStdOpsForSPIRVLoweringPass());
  passManager.addPass(createConvertGPUToSPIRVPass());
  OpPassManager &modulePM = passManager.nest<spirv::ModuleOp>();
  modulePM.addPass(spirv::createLowerABIAttributesPass());
  modulePM.addPass(spirv::createUpdateVersionCapabilityExtensionPass());
  passManager.addPass(createConvertGpuLaunchFuncToVulkanLaunchFuncPass());
  LowerToLLVMOptions llvmOptions = {
      /*useBarePtrCallConv =*/false,
      /*emitCWrappers = */ true,
      /*indexBitwidth =*/kDeriveIndexBitwidthFromDataLayout};
  passManager.addPass(createLowerToLLVMPass(llvmOptions));
  passManager.addPass(createConvertVulkanLaunchFuncToVulkanCallsPass());
  return passManager.run(module);
}

int main(int argc, char **argv) {
  llvm::llvm_shutdown_obj x;
  registerPassManagerCLOptions();

  mlir::registerAllDialects();
  llvm::InitLLVM y(argc, argv);
  llvm::InitializeNativeTarget();
  llvm::InitializeNativeTargetAsmPrinter();
  mlir::initializeLLVMPasses();

  return mlir::JitRunnerMain(argc, argv, &runMLIRPasses);
}