AnalysisUtil.cpp

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//===-- AnalysisUtil.cpp - Data-flow analysis utils -------------*- C++ -*-===//
//
// Part of the LLZK Project, under the Apache License v2.0.
// See LICENSE.txt for license information.
// Copyright 2025 Veridise Inc.
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
 
#include "llzk/Analysis/AnalysisUtil.h"
 
#include <mlir/Analysis/DataFlow/ConstantPropagationAnalysis.h>
#include <mlir/Analysis/DataFlow/DeadCodeAnalysis.h>
#include <mlir/IR/Operation.h>
 
using namespace mlir;
 
using Executable = mlir::dataflow::Executable;
 
namespace llzk::dataflow {
 
void loadRequiredAnalyses(DataFlowSolver &solver) {
  solver.load<mlir::dataflow::SparseConstantPropagation>();
  solver.load<mlir::dataflow::DeadCodeAnalysis>();
}
 
LogicalResult loadAndRunRequiredAnalyses(DataFlowSolver &solver, Operation *op) {
  loadRequiredAnalyses(solver);
  return solver.initializeAndRun(op);
}
 
bool isOperationLive(DataFlowSolver &solver, Operation *op) {
  if (!op->getBlock()) {
    return true;
  }
  if (const auto *exec =
          solver.lookupState<Executable>(solver.getProgramPointBefore(op->getBlock()))) {
    return exec->isLive();
  }
  return true;
}
 
} // namespace llzk::dataflow