llvm/mlir/lib/Conversion/ControlFlowToSPIRV/ControlFlowToSPIRV.cpp

//===- ControlFlowToSPIRV.cpp - ControlFlow to SPIR-V Patterns ------------===//
//
// 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 file implements patterns to convert standard dialect to SPIR-V dialect.
//
//===----------------------------------------------------------------------===//

#include "mlir/Conversion/ControlFlowToSPIRV/ControlFlowToSPIRV.h"
#include "../SPIRVCommon/Pattern.h"
#include "mlir/Dialect/ControlFlow/IR/ControlFlowOps.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVOps.h"
#include "mlir/Dialect/SPIRV/Transforms/SPIRVConversion.h"
#include "mlir/Dialect/SPIRV/Utils/LayoutUtils.h"
#include "mlir/IR/AffineMap.h"
#include "mlir/IR/PatternMatch.h"
#include "mlir/Transforms/DialectConversion.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/FormatVariadic.h"

#define DEBUG_TYPE …

usingnamespacemlir;

/// Legailze target block arguments.
static LogicalResult legalizeBlockArguments(Block &block, Operation *op,
                                            PatternRewriter &rewriter,
                                            const TypeConverter &converter) { … }

//===----------------------------------------------------------------------===//
// Operation conversion
//===----------------------------------------------------------------------===//

namespace {
/// Converts cf.br to spirv.Branch.
struct BranchOpPattern final : OpConversionPattern<cf::BranchOp> { … };

/// Converts cf.cond_br to spirv.BranchConditional.
struct CondBranchOpPattern final : OpConversionPattern<cf::CondBranchOp> { … };
} // namespace

//===----------------------------------------------------------------------===//
// Pattern population
//===----------------------------------------------------------------------===//

void mlir::cf::populateControlFlowToSPIRVPatterns(
    const SPIRVTypeConverter &typeConverter, RewritePatternSet &patterns) { … }