llvm/mlir/lib/Transforms/ControlFlowSink.cpp

//===- ControlFlowSink.cpp - Code to perform control-flow sinking ---------===//
//
// 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 a basic control-flow sink pass. Control-flow sinking
// moves operations whose only uses are in conditionally-executed blocks in to
// those blocks so that they aren't executed on paths where their results are
// not needed.
//
//===----------------------------------------------------------------------===//

#include "mlir/Transforms/Passes.h"

#include "mlir/IR/Dominance.h"
#include "mlir/Interfaces/ControlFlowInterfaces.h"
#include "mlir/Interfaces/SideEffectInterfaces.h"
#include "mlir/Transforms/ControlFlowSinkUtils.h"

namespace mlir {
#define GEN_PASS_DEF_CONTROLFLOWSINK
#include "mlir/Transforms/Passes.h.inc"
} // namespace mlir

usingnamespacemlir;

namespace {
/// A control-flow sink pass.
struct ControlFlowSink : public impl::ControlFlowSinkBase<ControlFlowSink> { … };
} // end anonymous namespace

void ControlFlowSink::runOnOperation() { … }

std::unique_ptr<Pass> mlir::createControlFlowSinkPass() { … }