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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 sw_Nucleus_hpp
#define sw_Nucleus_hpp
#include <cstdarg>
#include <cstdint>
#include <vector>
namespace sw
{
class Type;
class Value;
class SwitchCases;
class BasicBlock;
class Routine;
enum Optimization
{
Disabled = 0,
InstructionCombining = 1,
CFGSimplification = 2,
LICM = 3,
AggressiveDCE = 4,
GVN = 5,
Reassociate = 6,
DeadStoreElimination = 7,
SCCP = 8,
ScalarReplAggregates = 9,
OptimizationCount
};
extern Optimization optimization[10];
class Nucleus
{
public:
Nucleus();
virtual ~Nucleus();
Routine *acquireRoutine(const wchar_t *name, bool runOptimizations = true);
static Value *allocateStackVariable(Type *type, int arraySize = 0);
static BasicBlock *createBasicBlock();
static BasicBlock *getInsertBlock();
static void setInsertBlock(BasicBlock *basicBlock);
static void createFunction(Type *ReturnType, std::vector<Type*> &Params);
static Value *getArgument(unsigned int index);
// Terminators
static void createRetVoid();
static void createRet(Value *V);
static void createBr(BasicBlock *dest);
static void createCondBr(Value *cond, BasicBlock *ifTrue, BasicBlock *ifFalse);
// Binary operators
static Value *createAdd(Value *lhs, Value *rhs);
static Value *createSub(Value *lhs, Value *rhs);
static Value *createMul(Value *lhs, Value *rhs);
static Value *createUDiv(Value *lhs, Value *rhs);
static Value *createSDiv(Value *lhs, Value *rhs);
static Value *createFAdd(Value *lhs, Value *rhs);
static Value *createFSub(Value *lhs, Value *rhs);
static Value *createFMul(Value *lhs, Value *rhs);
static Value *createFDiv(Value *lhs, Value *rhs);
static Value *createURem(Value *lhs, Value *rhs);
static Value *createSRem(Value *lhs, Value *rhs);
static Value *createFRem(Value *lhs, Value *rhs);
static Value *createShl(Value *lhs, Value *rhs);
static Value *createLShr(Value *lhs, Value *rhs);
static Value *createAShr(Value *lhs, Value *rhs);
static Value *createAnd(Value *lhs, Value *rhs);
static Value *createOr(Value *lhs, Value *rhs);
static Value *createXor(Value *lhs, Value *rhs);
// Unary operators
static Value *createNeg(Value *V);
static Value *createFNeg(Value *V);
static Value *createNot(Value *V);
// Memory instructions
static Value *createLoad(Value *ptr, Type *type, bool isVolatile = false, unsigned int align = 0);
static Value *createStore(Value *value, Value *ptr, Type *type, bool isVolatile = false, unsigned int align = 0);
static Value *createGEP(Value *ptr, Type *type, Value *index, bool unsignedIndex);
// Atomic instructions
static Value *createAtomicAdd(Value *ptr, Value *value);
// Cast/Conversion Operators
static Value *createTrunc(Value *V, Type *destType);
static Value *createZExt(Value *V, Type *destType);
static Value *createSExt(Value *V, Type *destType);
static Value *createFPToSI(Value *V, Type *destType);
static Value *createSIToFP(Value *V, Type *destType);
static Value *createFPTrunc(Value *V, Type *destType);
static Value *createFPExt(Value *V, Type *destType);
static Value *createBitCast(Value *V, Type *destType);
// Compare instructions
static Value *createICmpEQ(Value *lhs, Value *rhs);
static Value *createICmpNE(Value *lhs, Value *rhs);
static Value *createICmpUGT(Value *lhs, Value *rhs);
static Value *createICmpUGE(Value *lhs, Value *rhs);
static Value *createICmpULT(Value *lhs, Value *rhs);
static Value *createICmpULE(Value *lhs, Value *rhs);
static Value *createICmpSGT(Value *lhs, Value *rhs);
static Value *createICmpSGE(Value *lhs, Value *rhs);
static Value *createICmpSLT(Value *lhs, Value *rhs);
static Value *createICmpSLE(Value *lhs, Value *rhs);
static Value *createFCmpOEQ(Value *lhs, Value *rhs);
static Value *createFCmpOGT(Value *lhs, Value *rhs);
static Value *createFCmpOGE(Value *lhs, Value *rhs);
static Value *createFCmpOLT(Value *lhs, Value *rhs);
static Value *createFCmpOLE(Value *lhs, Value *rhs);
static Value *createFCmpONE(Value *lhs, Value *rhs);
static Value *createFCmpORD(Value *lhs, Value *rhs);
static Value *createFCmpUNO(Value *lhs, Value *rhs);
static Value *createFCmpUEQ(Value *lhs, Value *rhs);
static Value *createFCmpUGT(Value *lhs, Value *rhs);
static Value *createFCmpUGE(Value *lhs, Value *rhs);
static Value *createFCmpULT(Value *lhs, Value *rhs);
static Value *createFCmpULE(Value *lhs, Value *rhs);
static Value *createFCmpUNE(Value *lhs, Value *rhs);
// Vector instructions
static Value *createExtractElement(Value *vector, Type *type, int index);
static Value *createInsertElement(Value *vector, Value *element, int index);
static Value *createShuffleVector(Value *V1, Value *V2, const int *select);
// Other instructions
static Value *createSelect(Value *C, Value *ifTrue, Value *ifFalse);
static SwitchCases *createSwitch(Value *control, BasicBlock *defaultBranch, unsigned numCases);
static void addSwitchCase(SwitchCases *switchCases, int label, BasicBlock *branch);
static void createUnreachable();
// Constant values
static Value *createNullValue(Type *type);
static Value *createConstantLong(int64_t i);
static Value *createConstantInt(int i);
static Value *createConstantInt(unsigned int i);
static Value *createConstantBool(bool b);
static Value *createConstantByte(signed char i);
static Value *createConstantByte(unsigned char i);
static Value *createConstantShort(short i);
static Value *createConstantShort(unsigned short i);
static Value *createConstantFloat(float x);
static Value *createNullPointer(Type *type);
static Value *createConstantVector(const int64_t *constants, Type *type);
static Value *createConstantVector(const double *constants, Type *type);
static Type *getPointerType(Type *elementType);
private:
void optimize();
};
}
#endif // sw_Nucleus_hpp
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