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llvm-6502/include/llvm/Support/LLVMBuilder.h
Chris Lattner 848377d533 Add a new LLVMBuilder class, which makes it simpler and more uniform to
create large amounts of instructions by separating the insertion point
logic from the logic of what to create.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37332 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-27 15:09:34 +00:00

432 lines
17 KiB
C++

//===-- llvm/Support/LLVMBuilder.h - Builder for LLVM Instrs ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Chris Lattner and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the LLVMBuilder class, which is used as a convenient way
// to create LLVM instructions with a consistent and simplified interface.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_LLVMBUILDER_H
#define LLVM_SUPPORT_LLVMBUILDER_H
#include "llvm/BasicBlock.h"
#include "llvm/Instructions.h"
namespace llvm {
/// LLVMBuilder - This provides a uniform API for creating instructions and
/// inserting them into a basic block: either at the end of a BasicBlock, or
/// at a specific iterator location in a block.
///
/// Note that the builder does not expose the full generality of LLVM
/// instructions. For example, it cannot be used to create instructions with
/// arbitrary names (specifically, names with nul characters in them) - It only
/// supports nul-terminated C strings. For fully generic names, use
/// I->setName(). For access to extra instruction properties, use the mutators
/// (e.g. setVolatile) on the instructions after they have been created.
class LLVMBuilder {
BasicBlock *BB;
BasicBlock::iterator InsertPt;
public:
LLVMBuilder() { ClearInsertionPoint(); }
explicit LLVMBuilder(BasicBlock *TheBB) { SetInsertPoint(TheBB); }
LLVMBuilder(BasicBlock *TheBB, BasicBlock::iterator IP) {
SetInsertPoint(TheBB, IP);
}
//===--------------------------------------------------------------------===//
// Builder configuration methods
//===--------------------------------------------------------------------===//
/// ClearInsertionPoint - Clear the insertion point: created instructions will
/// not be inserted into a block.
void ClearInsertionPoint() {
BB = 0;
}
BasicBlock *GetInsertBlock() const { return BB; }
/// SetInsertPoint - This specifies that created instructions should be
/// appended to the end of the specified block.
void SetInsertPoint(BasicBlock *TheBB) {
BB = TheBB;
InsertPt = BB->end();
}
/// SetInsertPoint - This specifies that created instructions should be
/// inserted at the specified point.
void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
BB = TheBB;
InsertPt = IP;
}
/// Insert - Insert and return the specified instruction.
template<typename InstTy>
InstTy *Insert(InstTy *I) const {
InsertHelper(I);
return I;
}
/// InsertHelper - Insert the specified instruction at the specified insertion
/// point. This is split out of Insert so that it isn't duplicated for every
/// template instantiation.
void InsertHelper(Instruction *I) const {
if (BB) BB->getInstList().insert(InsertPt, I);
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Terminators
//===--------------------------------------------------------------------===//
/// CreateRetVoid - Create a 'ret void' instruction.
ReturnInst *CreateRetVoid() {
return Insert(new ReturnInst());
}
/// CreateRet - Create a 'ret <val>' instruction.
ReturnInst *CreateRet(Value *V) {
return Insert(new ReturnInst(V));
}
/// CreateBr - Create an unconditional 'br label X' instruction.
BranchInst *CreateBr(BasicBlock *Dest) {
return Insert(new BranchInst(Dest));
}
/// CreateCondBr - Create a conditional 'br Cond, TrueDest, FalseDest'
/// instruction.
BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False) {
return Insert(new BranchInst(True, False, Cond));
}
/// CreateSwitch - Create a switch instruction with the specified value,
/// default dest, and with a hint for the number of cases that will be added
/// (for efficient allocation).
SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10) {
return Insert(new SwitchInst(V, Dest, NumCases));
}
/// CreateInvoke - Create an invoke instruction.
InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
BasicBlock *UnwindDest,
Value *const* Args, unsigned NumArgs,
const char *Name = "") {
return Insert(new InvokeInst(Callee, NormalDest, UnwindDest, Args, NumArgs,
Name));
}
UnwindInst *CreateUnwind() {
return Insert(new UnwindInst());
}
UnreachableInst *CreateUnreachable() {
return Insert(new UnreachableInst());
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Binary Operators
//===--------------------------------------------------------------------===//
BinaryOperator *CreateAdd(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createAdd(LHS, RHS, Name));
}
BinaryOperator *CreateSub(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createSub(LHS, RHS, Name));
}
BinaryOperator *CreateMul(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createMul(LHS, RHS, Name));
}
BinaryOperator *CreateUDiv(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createUDiv(LHS, RHS, Name));
}
BinaryOperator *CreateSDiv(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createSDiv(LHS, RHS, Name));
}
BinaryOperator *CreateFDiv(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createFDiv(LHS, RHS, Name));
}
BinaryOperator *CreateURem(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createURem(LHS, RHS, Name));
}
BinaryOperator *CreateSRem(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createSRem(LHS, RHS, Name));
}
BinaryOperator *CreateFRem(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createFRem(LHS, RHS, Name));
}
BinaryOperator *CreateShl(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createShl(LHS, RHS, Name));
}
BinaryOperator *CreateLShr(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createLShr(LHS, RHS, Name));
}
BinaryOperator *CreateAShr(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createAShr(LHS, RHS, Name));
}
BinaryOperator *CreateAnd(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createAnd(LHS, RHS, Name));
}
BinaryOperator *CreateOr(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createOr(LHS, RHS, Name));
}
BinaryOperator *CreateXor(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::createXor(LHS, RHS, Name));
}
BinaryOperator *CreateBinOp(Instruction::BinaryOps Opc,
Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::create(Opc, LHS, RHS, Name));
}
BinaryOperator *CreateNeg(Value *V, const char *Name = "") {
return Insert(BinaryOperator::createNeg(V, Name));
}
BinaryOperator *CreateNot(Value *V, const char *Name = "") {
return Insert(BinaryOperator::createNot(V, Name));
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Memory Instructions
//===--------------------------------------------------------------------===//
MallocInst *CreateMalloc(const Type *Ty, Value *ArraySize = 0,
const char *Name = "") {
return Insert(new MallocInst(Ty, ArraySize, Name));
}
AllocaInst *CreateAlloca(const Type *Ty, Value *ArraySize = 0,
const char *Name = "") {
return Insert(new AllocaInst(Ty, ArraySize, Name));
}
FreeInst *CreateFree(Value *Ptr) {
return Insert(new FreeInst(Ptr));
}
LoadInst *CreateLoad(Value *Ptr, const char *Name = 0) {
return Insert(new LoadInst(Ptr, Name));
}
LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const char *Name = 0) {
return Insert(new LoadInst(Ptr, Name, isVolatile));
}
StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
return Insert(new StoreInst(Val, Ptr, isVolatile));
}
GetElementPtrInst *CreateGEP(Value *Ptr, Value* const *Idx, unsigned NumIdx,
const char *Name = "") {
return Insert(new GetElementPtrInst(Ptr, Idx, NumIdx, Name));
}
GetElementPtrInst *CreateGEP(Value *Ptr, Value *Idx, const char *Name = "") {
return Insert(new GetElementPtrInst(Ptr, &Idx, 1, Name));
}
GetElementPtrInst *CreateGEP(Value *Ptr, Value *Idx0, Value *Idx1,
const char *Name = "") {
return Insert(new GetElementPtrInst(Ptr, Idx0, Idx1, Name));
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Cast/Conversion Operators
//===--------------------------------------------------------------------===//
TruncInst *CreateTrunc(Value *V, const Type *DestTy, const char *Name = "") {
return Insert(new TruncInst(V, DestTy, Name));
}
ZExtInst *CreateZExt(Value *V, const Type *DestTy, const char *Name = "") {
return Insert(new ZExtInst(V, DestTy, Name));
}
SExtInst *CreateSExt(Value *V, const Type *DestTy, const char *Name = "") {
return Insert(new SExtInst(V, DestTy, Name));
}
FPToUIInst *CreateFPToUI(Value *V, const Type *DestTy, const char *Name = ""){
return Insert(new FPToUIInst(V, DestTy, Name));
}
FPToSIInst *CreateFPToSI(Value *V, const Type *DestTy, const char *Name = ""){
return Insert(new FPToSIInst(V, DestTy, Name));
}
UIToFPInst *CreateUIToFP(Value *V, const Type *DestTy, const char *Name = ""){
return Insert(new UIToFPInst(V, DestTy, Name));
}
SIToFPInst *CreateSIToFP(Value *V, const Type *DestTy, const char *Name = ""){
return Insert(new SIToFPInst(V, DestTy, Name));
}
FPTruncInst *CreateFPTrunc(Value *V, const Type *DestTy,
const char *Name = "") {
return Insert(new FPTruncInst(V, DestTy, Name));
}
FPExtInst *CreateFPExt(Value *V, const Type *DestTy, const char *Name = "") {
return Insert(new FPExtInst(V, DestTy, Name));
}
PtrToIntInst *CreatePtrToInt(Value *V, const Type *DestTy,
const char *Name = "") {
return Insert(new PtrToIntInst(V, DestTy, Name));
}
IntToPtrInst *CreateIntToPtr(Value *V, const Type *DestTy,
const char *Name = "") {
return Insert(new IntToPtrInst(V, DestTy, Name));
}
BitCastInst *CreateBitCast(Value *V, const Type *DestTy,
const char *Name = "") {
return Insert(new BitCastInst(V, DestTy, Name));
}
CastInst *CreateCast(Instruction::CastOps Op, Value *V, const Type *DestTy,
const char *Name = "") {
return Insert(CastInst::create(Op, V, DestTy, Name));
}
CastInst *CreateIntCast(Value *V, const Type *DestTy, bool isSigned,
const char *Name = "") {
return Insert(CastInst::createIntegerCast(V, DestTy, isSigned, Name));
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Compare Instructions
//===--------------------------------------------------------------------===//
ICmpInst *CreateICmpEQ(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_EQ, LHS, RHS, Name));
}
ICmpInst *CreateICmpNE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_NE, LHS, RHS, Name));
}
ICmpInst *CreateICmpUGT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_UGT, LHS, RHS, Name));
}
ICmpInst *CreateICmpUGE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_UGE, LHS, RHS, Name));
}
ICmpInst *CreateICmpULT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_ULT, LHS, RHS, Name));
}
ICmpInst *CreateICmpULE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_ULE, LHS, RHS, Name));
}
ICmpInst *CreateICmpSGT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_SGT, LHS, RHS, Name));
}
ICmpInst *CreateICmpSGE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_SGE, LHS, RHS, Name));
}
ICmpInst *CreateICmpSLT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_SLT, LHS, RHS, Name));
}
ICmpInst *CreateICmpSLE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new ICmpInst(ICmpInst::ICMP_SLE, LHS, RHS, Name));
}
FCmpInst *CreateFCmpOEQ(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_OEQ, LHS, RHS, Name));
}
FCmpInst *CreateFCmpOGT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_OGT, LHS, RHS, Name));
}
FCmpInst *CreateFCmpOGE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_OGE, LHS, RHS, Name));
}
FCmpInst *CreateFCmpOLT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_OLT, LHS, RHS, Name));
}
FCmpInst *CreateFCmpOLE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_OLE, LHS, RHS, Name));
}
FCmpInst *CreateFCmpONE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_ONE, LHS, RHS, Name));
}
FCmpInst *CreateFCmpORD(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_ORD, LHS, RHS, Name));
}
FCmpInst *CreateFCmpUNO(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_UNO, LHS, RHS, Name));
}
FCmpInst *CreateFCmpUEQ(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_UEQ, LHS, RHS, Name));
}
FCmpInst *CreateFCmpUGT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_UGT, LHS, RHS, Name));
}
FCmpInst *CreateFCmpUGE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_UGE, LHS, RHS, Name));
}
FCmpInst *CreateFCmpULT(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_ULT, LHS, RHS, Name));
}
FCmpInst *CreateFCmpULE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_ULE, LHS, RHS, Name));
}
FCmpInst *CreateFCmpUNE(Value *LHS, Value *RHS, const char *Name = "") {
return Insert(new FCmpInst(FCmpInst::FCMP_UNE, LHS, RHS, Name));
}
ICmpInst *CreateICmp(ICmpInst::Predicate P, Value *LHS, Value *RHS,
const char *Name = "") {
return Insert(new ICmpInst(P, LHS, RHS, Name));
}
FCmpInst *CreateFCmp(FCmpInst::Predicate P, Value *LHS, Value *RHS,
const char *Name = "") {
return Insert(new FCmpInst(P, LHS, RHS, Name));
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Other Instructions
//===--------------------------------------------------------------------===//
PHINode *CreatePHI(const Type *Ty, const char *Name = "") {
return Insert(new PHINode(Ty, Name));
}
CallInst *CreateCall(Value *Callee, const char *Name = "") {
return Insert(new CallInst(Callee, (Value**)0, 0, Name));
}
CallInst *CreateCall(Value *Callee, Value *Arg, const char *Name = "") {
return Insert(new CallInst(Callee, &Arg, 1, Name));
}
CallInst *CreateCall(Value *Callee, Value *Arg0, Value *Arg1,
const char *Name = "") {
Value *Args[] = { Arg0, Arg1 };
return Insert(new CallInst(Callee, Args, 2, Name));
}
CallInst *CreateCall(Value *Callee, Value* const *Args, unsigned NumArgs,
const char *Name = "") {
return Insert(new CallInst(Callee, Args, NumArgs, Name));
}
SelectInst *CreateSelect(Value *C, Value *True, Value *False,
const char *Name = "") {
return Insert(new SelectInst(C, True, False, Name));
}
VAArgInst *CreateVAArg(Value *List, const Type *Ty, const char *Name = "") {
return Insert(new VAArgInst(List, Ty, Name));
}
ExtractElementInst *CreateExtractElement(Value *Vec, Value *Idx,
const char *Name = "") {
return Insert(new ExtractElementInst(Vec, Idx, Name));
}
InsertElementInst *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
const char *Name = "") {
return Insert(new InsertElementInst(Vec, NewElt, Idx, Name));
}
ShuffleVectorInst *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
const char *Name = "") {
return Insert(new ShuffleVectorInst(V1, V2, Mask, Name));
}
};
// TODO: A version of LLVMBuilder that constant folds operands as they come in.
//class LLVMFoldingBuilder {
//};
}
#endif