chromium/third_party/spirv-tools/src/source/opt/interp_fixup_pass.cpp

// Copyright (c) 2021 The Khronos Group Inc.
// Copyright (c) 2021 Valve Corporation
// Copyright (c) 2021 LunarG Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "source/opt/interp_fixup_pass.h"

#include <set>
#include <string>

#include "source/opt/ir_context.h"
#include "type_manager.h"

namespace spvtools {
namespace opt {
namespace {

// Input Operand Indices
constexpr int kSpvVariableStorageClassInIdx = …;

// Folding rule function which attempts to replace |op(OpLoad(a),...)|
// by |op(a,...)|, where |op| is one of the GLSLstd450 InterpolateAt*
// instructions. Returns true if replaced, false otherwise.
bool ReplaceInternalInterpolate(IRContext* ctx, Instruction* inst,
                                const std::vector<const analysis::Constant*>&) { … }

class InterpFoldingRules : public FoldingRules { … };

class InterpConstFoldingRules : public ConstantFoldingRules { … };

}  // namespace

Pass::Status InterpFixupPass::Process() { … }

}  // namespace opt
}  // namespace spvtools