chromium/third_party/skia/src/sksl/transform/SkSLEliminateDeadGlobalVariables.cpp

/*
 * Copyright 2021 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/base/SkStringView.h"
#include "src/sksl/SkSLContext.h"
#include "src/sksl/SkSLModule.h"
#include "src/sksl/SkSLProgramSettings.h"
#include "src/sksl/analysis/SkSLProgramUsage.h"
#include "src/sksl/ir/SkSLProgram.h"
#include "src/sksl/ir/SkSLProgramElement.h"
#include "src/sksl/ir/SkSLVarDeclarations.h"
#include "src/sksl/ir/SkSLVariable.h"
#include "src/sksl/transform/SkSLTransform.h"

#include <algorithm>
#include <cstddef>
#include <memory>
#include <vector>

namespace SkSL {

static bool is_dead_variable(const ProgramElement& element,
                             ProgramUsage* usage,
                             bool onlyPrivateGlobals) { … }

bool Transform::EliminateDeadGlobalVariables(const Context& context,
                                             Module& module,
                                             ProgramUsage* usage,
                                             bool onlyPrivateGlobals) { … }

bool Transform::EliminateDeadGlobalVariables(Program& program) { … }

}  // namespace SkSL