eb6c4197d5
Do not run `cf-to-llvm` as part of `func-to-llvm`. This commit fixes https://github.com/llvm/llvm-project/issues/70982. This commit changes the way how `func.func` ops are lowered to LLVM. Previously, the signature of the entire region (i.e., entry block and all other blocks in the `func.func` op) was converted as part of the `func.func` lowering pattern. Now, only the entry block is converted. The remaining block signatures are converted together with `cf.br` and `cf.cond_br` as part of `cf-to-llvm`. All unstructured control flow is not converted as part of a single pass (`cf-to-llvm`). `func-to-llvm` no longer deals with unstructured control flow. Also add more test cases for control flow dialect ops. Note: This PR is in preparation of #120431, which adds an additional GPU-specific lowering for `cf.assert`. This was a problem because `cf.assert` used to be converted as part of `func-to-llvm`. Note for LLVM integration: If you see failures, add `-convert-cf-to-llvm` to your pass pipeline.
89 lines
3.8 KiB
C++
89 lines
3.8 KiB
C++
//===- mlir-vulkan-runner.cpp - MLIR Vulkan Execution Driver --------------===//
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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 a command line utility that executes an MLIR file on the Vulkan by
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// translating MLIR GPU module to SPIR-V and host part to LLVM IR before
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// JIT-compiling and executing the latter.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/ArithToLLVM/ArithToLLVM.h"
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#include "mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h"
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#include "mlir/Conversion/FuncToLLVM/ConvertFuncToLLVMPass.h"
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#include "mlir/Conversion/GPUToVulkan/ConvertGPUToVulkanPass.h"
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#include "mlir/Conversion/LLVMCommon/LoweringOptions.h"
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#include "mlir/Conversion/MemRefToLLVM/MemRefToLLVM.h"
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#include "mlir/Conversion/ReconcileUnrealizedCasts/ReconcileUnrealizedCasts.h"
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#include "mlir/Conversion/VectorToLLVM/ConvertVectorToLLVMPass.h"
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#include "mlir/Dialect/Arith/IR/Arith.h"
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#include "mlir/Dialect/Func/IR/FuncOps.h"
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#include "mlir/Dialect/GPU/IR/GPUDialect.h"
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#include "mlir/Dialect/GPU/Transforms/Passes.h"
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#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
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#include "mlir/Dialect/LLVMIR/Transforms/RequestCWrappers.h"
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#include "mlir/Dialect/MemRef/IR/MemRef.h"
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#include "mlir/Dialect/MemRef/Transforms/Passes.h"
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#include "mlir/Dialect/SCF/IR/SCF.h"
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#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
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#include "mlir/Dialect/Vector/IR/VectorOps.h"
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#include "mlir/ExecutionEngine/JitRunner.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/Target/LLVMIR/Dialect/Builtin/BuiltinToLLVMIRTranslation.h"
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#include "mlir/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.h"
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#include "llvm/Support/InitLLVM.h"
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#include "llvm/Support/TargetSelect.h"
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using namespace mlir;
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static LogicalResult runMLIRPasses(Operation *op, JitRunnerOptions &) {
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auto module = dyn_cast<ModuleOp>(op);
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if (!module)
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return op->emitOpError("expected a 'builtin.module' op");
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PassManager passManager(module.getContext());
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if (failed(applyPassManagerCLOptions(passManager)))
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return failure();
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passManager.addPass(createConvertGpuLaunchFuncToVulkanLaunchFuncPass());
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passManager.addPass(createFinalizeMemRefToLLVMConversionPass());
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passManager.addPass(createConvertVectorToLLVMPass());
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passManager.nest<func::FuncOp>().addPass(LLVM::createRequestCWrappersPass());
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ConvertFuncToLLVMPassOptions funcToLLVMOptions{};
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funcToLLVMOptions.indexBitwidth =
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DataLayout(module).getTypeSizeInBits(IndexType::get(module.getContext()));
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passManager.addPass(createConvertFuncToLLVMPass(funcToLLVMOptions));
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passManager.addPass(createArithToLLVMConversionPass());
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passManager.addPass(createConvertControlFlowToLLVMPass());
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passManager.addPass(createReconcileUnrealizedCastsPass());
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passManager.addPass(createConvertVulkanLaunchFuncToVulkanCallsPass());
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return passManager.run(module);
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}
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int main(int argc, char **argv) {
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llvm::llvm_shutdown_obj x;
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registerPassManagerCLOptions();
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llvm::InitLLVM y(argc, argv);
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llvm::InitializeNativeTarget();
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llvm::InitializeNativeTargetAsmPrinter();
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mlir::JitRunnerConfig jitRunnerConfig;
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jitRunnerConfig.mlirTransformer = runMLIRPasses;
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mlir::DialectRegistry registry;
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registry.insert<mlir::arith::ArithDialect, mlir::LLVM::LLVMDialect,
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mlir::gpu::GPUDialect, mlir::spirv::SPIRVDialect,
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mlir::scf::SCFDialect, mlir::func::FuncDialect,
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mlir::memref::MemRefDialect, mlir::vector::VectorDialect>();
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mlir::registerBuiltinDialectTranslation(registry);
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mlir::registerLLVMDialectTranslation(registry);
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return mlir::JitRunnerMain(argc, argv, registry, jitRunnerConfig);
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}
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