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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// 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.
#ifndef _LOCAL_INTERMEDIATE_INCLUDED_
#define _LOCAL_INTERMEDIATE_INCLUDED_
#include "intermediate.h"
struct TVectorFields {
int offsets[4];
int num;
};
//
// Set of helper functions to help parse and build the tree.
//
class TInfoSink;
class TIntermediate {
public:
POOL_ALLOCATOR_NEW_DELETE();
TIntermediate(TInfoSink& i) : infoSink(i) { }
TIntermSymbol* addSymbol(int Id, const TString&, const TType&, const TSourceLoc&);
TIntermTyped* addBinaryMath(TOperator op, TIntermTyped* left, TIntermTyped* right, const TSourceLoc&);
TIntermTyped* addAssign(TOperator op, TIntermTyped* left, TIntermTyped* right, const TSourceLoc&);
TIntermTyped* addIndex(TOperator op, TIntermTyped* base, TIntermTyped* index, const TSourceLoc&);
TIntermTyped* addUnaryMath(TOperator op, TIntermTyped* child, const TSourceLoc&, const TType*);
TIntermAggregate* growAggregate(TIntermNode* left, TIntermNode* right, const TSourceLoc&);
TIntermAggregate* makeAggregate(TIntermNode* node, const TSourceLoc&);
TIntermAggregate* setAggregateOperator(TIntermNode*, TOperator, const TSourceLoc&);
TIntermNode* addSelection(TIntermTyped* cond, TIntermNodePair code, const TSourceLoc&);
TIntermTyped* addSelection(TIntermTyped* cond, TIntermTyped* trueBlock, TIntermTyped* falseBlock, const TSourceLoc&);
TIntermSwitch *addSwitch(TIntermTyped *init, TIntermAggregate *statementList, const TSourceLoc &line);
TIntermCase *addCase(TIntermTyped *condition, const TSourceLoc &line);
TIntermTyped* addComma(TIntermTyped* left, TIntermTyped* right, const TSourceLoc&);
TIntermConstantUnion* addConstantUnion(ConstantUnion*, const TType&, const TSourceLoc&);
TIntermTyped* promoteConstantUnion(TBasicType, TIntermConstantUnion*);
bool parseConstTree(const TSourceLoc&, TIntermNode*, ConstantUnion*, TOperator, TType, bool singleConstantParam = false);
TIntermNode* addLoop(TLoopType, TIntermNode*, TIntermTyped*, TIntermTyped*, TIntermNode*, const TSourceLoc&);
TIntermBranch* addBranch(TOperator, const TSourceLoc&);
TIntermBranch* addBranch(TOperator, TIntermTyped*, const TSourceLoc&);
TIntermTyped* addSwizzle(TVectorFields&, const TSourceLoc&);
bool postProcess(TIntermNode*);
void outputTree(TIntermNode*);
protected:
TInfoSink& infoSink;
private:
void operator=(TIntermediate&); // prevent assignments
};
#endif // _LOCAL_INTERMEDIATE_INCLUDED_