1 //===---- llvm/Support/IRBuilder.h - Builder for LLVM Instrs ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the IRBuilder class, which is used as a convenient way
11 // to create LLVM instructions with a consistent and simplified interface.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_SUPPORT_IRBUILDER_H
16 #define LLVM_SUPPORT_IRBUILDER_H
18 #include "llvm/Constants.h"
19 #include "llvm/Instructions.h"
20 #include "llvm/GlobalVariable.h"
21 #include "llvm/Function.h"
22 #include "llvm/Support/ConstantFolder.h"
26 /// IRBuilder - This provides a uniform API for creating instructions and
27 /// inserting them into a basic block: either at the end of a BasicBlock, or
28 /// at a specific iterator location in a block.
30 /// Note that the builder does not expose the full generality of LLVM
31 /// instructions. For example, it cannot be used to create instructions with
32 /// arbitrary names (specifically, names with nul characters in them) - It only
33 /// supports nul-terminated C strings. For fully generic names, use
34 /// I->setName(). For access to extra instruction properties, use the mutators
35 /// (e.g. setVolatile) on the instructions after they have been created.
36 /// The first template argument handles whether or not to preserve names in the
37 /// final instruction output. This defaults to on. The second template argument
38 /// specifies a class to use for creating constants. This defaults to creating
39 /// minimally folded constants.
40 template <bool preserveNames=true, typename T = ConstantFolder> class IRBuilder{
42 BasicBlock::iterator InsertPt;
45 IRBuilder(const T& F = T()) : Folder(F) { ClearInsertionPoint(); }
46 explicit IRBuilder(BasicBlock *TheBB, const T& F = T())
47 : Folder(F) { SetInsertPoint(TheBB); }
48 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F = T())
49 : Folder(F) { SetInsertPoint(TheBB, IP); }
51 /// getFolder - Get the constant folder being used.
52 const T& getFolder() { return Folder; }
54 //===--------------------------------------------------------------------===//
55 // Builder configuration methods
56 //===--------------------------------------------------------------------===//
58 /// ClearInsertionPoint - Clear the insertion point: created instructions will
59 /// not be inserted into a block.
60 void ClearInsertionPoint() {
64 BasicBlock *GetInsertBlock() const { return BB; }
66 /// SetInsertPoint - This specifies that created instructions should be
67 /// appended to the end of the specified block.
68 void SetInsertPoint(BasicBlock *TheBB) {
73 /// SetInsertPoint - This specifies that created instructions should be
74 /// inserted at the specified point.
75 void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
80 /// Insert - Insert and return the specified instruction.
81 template<typename InstTy>
82 InstTy *Insert(InstTy *I, const char *Name = "") const {
83 InsertHelper(I, Name);
87 /// InsertHelper - Insert the specified instruction at the specified insertion
88 /// point. This is split out of Insert so that it isn't duplicated for every
89 /// template instantiation.
90 void InsertHelper(Instruction *I, const char *Name) const {
91 if (BB) BB->getInstList().insert(InsertPt, I);
92 if (preserveNames && Name[0])
96 //===--------------------------------------------------------------------===//
97 // Instruction creation methods: Terminators
98 //===--------------------------------------------------------------------===//
100 /// CreateRetVoid - Create a 'ret void' instruction.
101 ReturnInst *CreateRetVoid() {
102 return Insert(ReturnInst::Create());
106 /// CreateRet - Create a 'ret <val>' instruction.
108 ReturnInst *CreateRet(Value *V) {
109 return Insert(ReturnInst::Create(V));
112 /// CreateAggregateRet - Create a sequence of N insertvalue instructions,
113 /// with one Value from the retVals array each, that build a aggregate
114 /// return value one value at a time, and a ret instruction to return
115 /// the resulting aggregate value. This is a convenience function for
116 /// code that uses aggregate return values as a vehicle for having
117 /// multiple return values.
119 ReturnInst *CreateAggregateRet(Value * const* retVals, unsigned N) {
120 const Type *RetType = BB->getParent()->getReturnType();
121 Value *V = UndefValue::get(RetType);
122 for (unsigned i = 0; i != N; ++i)
123 V = CreateInsertValue(V, retVals[i], i, "mrv");
124 return Insert(ReturnInst::Create(V));
127 /// CreateBr - Create an unconditional 'br label X' instruction.
128 BranchInst *CreateBr(BasicBlock *Dest) {
129 return Insert(BranchInst::Create(Dest));
132 /// CreateCondBr - Create a conditional 'br Cond, TrueDest, FalseDest'
134 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False) {
135 return Insert(BranchInst::Create(True, False, Cond));
138 /// CreateSwitch - Create a switch instruction with the specified value,
139 /// default dest, and with a hint for the number of cases that will be added
140 /// (for efficient allocation).
141 SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10) {
142 return Insert(SwitchInst::Create(V, Dest, NumCases));
145 /// CreateInvoke - Create an invoke instruction.
146 template<typename InputIterator>
147 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
148 BasicBlock *UnwindDest, InputIterator ArgBegin,
149 InputIterator ArgEnd, const char *Name = "") {
150 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest,
151 ArgBegin, ArgEnd), Name);
154 UnwindInst *CreateUnwind() {
155 return Insert(new UnwindInst());
158 UnreachableInst *CreateUnreachable() {
159 return Insert(new UnreachableInst());
162 //===--------------------------------------------------------------------===//
163 // Instruction creation methods: Binary Operators
164 //===--------------------------------------------------------------------===//
166 Value *CreateAdd(Value *LHS, Value *RHS, const char *Name = "") {
167 if (Constant *LC = dyn_cast<Constant>(LHS))
168 if (Constant *RC = dyn_cast<Constant>(RHS))
169 return Folder.CreateAdd(LC, RC);
170 return Insert(BinaryOperator::CreateAdd(LHS, RHS), Name);
172 Value *CreateSub(Value *LHS, Value *RHS, const char *Name = "") {
173 if (Constant *LC = dyn_cast<Constant>(LHS))
174 if (Constant *RC = dyn_cast<Constant>(RHS))
175 return Folder.CreateSub(LC, RC);
176 return Insert(BinaryOperator::CreateSub(LHS, RHS), Name);
178 Value *CreateMul(Value *LHS, Value *RHS, const char *Name = "") {
179 if (Constant *LC = dyn_cast<Constant>(LHS))
180 if (Constant *RC = dyn_cast<Constant>(RHS))
181 return Folder.CreateMul(LC, RC);
182 return Insert(BinaryOperator::CreateMul(LHS, RHS), Name);
184 Value *CreateUDiv(Value *LHS, Value *RHS, const char *Name = "") {
185 if (Constant *LC = dyn_cast<Constant>(LHS))
186 if (Constant *RC = dyn_cast<Constant>(RHS))
187 return Folder.CreateUDiv(LC, RC);
188 return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
190 Value *CreateSDiv(Value *LHS, Value *RHS, const char *Name = "") {
191 if (Constant *LC = dyn_cast<Constant>(LHS))
192 if (Constant *RC = dyn_cast<Constant>(RHS))
193 return Folder.CreateSDiv(LC, RC);
194 return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
196 Value *CreateFDiv(Value *LHS, Value *RHS, const char *Name = "") {
197 if (Constant *LC = dyn_cast<Constant>(LHS))
198 if (Constant *RC = dyn_cast<Constant>(RHS))
199 return Folder.CreateFDiv(LC, RC);
200 return Insert(BinaryOperator::CreateFDiv(LHS, RHS), Name);
202 Value *CreateURem(Value *LHS, Value *RHS, const char *Name = "") {
203 if (Constant *LC = dyn_cast<Constant>(LHS))
204 if (Constant *RC = dyn_cast<Constant>(RHS))
205 return Folder.CreateURem(LC, RC);
206 return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
208 Value *CreateSRem(Value *LHS, Value *RHS, const char *Name = "") {
209 if (Constant *LC = dyn_cast<Constant>(LHS))
210 if (Constant *RC = dyn_cast<Constant>(RHS))
211 return Folder.CreateSRem(LC, RC);
212 return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
214 Value *CreateFRem(Value *LHS, Value *RHS, const char *Name = "") {
215 if (Constant *LC = dyn_cast<Constant>(LHS))
216 if (Constant *RC = dyn_cast<Constant>(RHS))
217 return Folder.CreateFRem(LC, RC);
218 return Insert(BinaryOperator::CreateFRem(LHS, RHS), Name);
220 Value *CreateShl(Value *LHS, Value *RHS, const char *Name = "") {
221 if (Constant *LC = dyn_cast<Constant>(LHS))
222 if (Constant *RC = dyn_cast<Constant>(RHS))
223 return Folder.CreateShl(LC, RC);
224 return Insert(BinaryOperator::CreateShl(LHS, RHS), Name);
226 Value *CreateLShr(Value *LHS, Value *RHS, const char *Name = "") {
227 if (Constant *LC = dyn_cast<Constant>(LHS))
228 if (Constant *RC = dyn_cast<Constant>(RHS))
229 return Folder.CreateLShr(LC, RC);
230 return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
232 Value *CreateAShr(Value *LHS, Value *RHS, const char *Name = "") {
233 if (Constant *LC = dyn_cast<Constant>(LHS))
234 if (Constant *RC = dyn_cast<Constant>(RHS))
235 return Folder.CreateAShr(LC, RC);
236 return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
238 Value *CreateAnd(Value *LHS, Value *RHS, const char *Name = "") {
239 if (Constant *LC = dyn_cast<Constant>(LHS))
240 if (Constant *RC = dyn_cast<Constant>(RHS))
241 return Folder.CreateAnd(LC, RC);
242 return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
244 Value *CreateOr(Value *LHS, Value *RHS, const char *Name = "") {
245 if (Constant *LC = dyn_cast<Constant>(LHS))
246 if (Constant *RC = dyn_cast<Constant>(RHS))
247 return Folder.CreateOr(LC, RC);
248 return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
250 Value *CreateXor(Value *LHS, Value *RHS, const char *Name = "") {
251 if (Constant *LC = dyn_cast<Constant>(LHS))
252 if (Constant *RC = dyn_cast<Constant>(RHS))
253 return Folder.CreateXor(LC, RC);
254 return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
257 Value *CreateBinOp(Instruction::BinaryOps Opc,
258 Value *LHS, Value *RHS, const char *Name = "") {
259 if (Constant *LC = dyn_cast<Constant>(LHS))
260 if (Constant *RC = dyn_cast<Constant>(RHS))
261 return Folder.CreateBinOp(Opc, LC, RC);
262 return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
265 Value *CreateNeg(Value *V, const char *Name = "") {
266 if (Constant *VC = dyn_cast<Constant>(V))
267 return Folder.CreateNeg(VC);
268 return Insert(BinaryOperator::CreateNeg(V), Name);
270 Value *CreateNot(Value *V, const char *Name = "") {
271 if (Constant *VC = dyn_cast<Constant>(V))
272 return Folder.CreateNot(VC);
273 return Insert(BinaryOperator::CreateNot(V), Name);
276 //===--------------------------------------------------------------------===//
277 // Instruction creation methods: Memory Instructions
278 //===--------------------------------------------------------------------===//
280 MallocInst *CreateMalloc(const Type *Ty, Value *ArraySize = 0,
281 const char *Name = "") {
282 return Insert(new MallocInst(Ty, ArraySize), Name);
284 AllocaInst *CreateAlloca(const Type *Ty, Value *ArraySize = 0,
285 const char *Name = "") {
286 return Insert(new AllocaInst(Ty, ArraySize), Name);
288 FreeInst *CreateFree(Value *Ptr) {
289 return Insert(new FreeInst(Ptr));
291 LoadInst *CreateLoad(Value *Ptr, const char *Name = "") {
292 return Insert(new LoadInst(Ptr), Name);
294 LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const char *Name = "") {
295 return Insert(new LoadInst(Ptr, 0, isVolatile), Name);
297 StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
298 return Insert(new StoreInst(Val, Ptr, isVolatile));
300 template<typename InputIterator>
301 Value *CreateGEP(Value *Ptr, InputIterator IdxBegin, InputIterator IdxEnd,
302 const char *Name = "") {
303 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
304 // Every index must be constant.
306 for (i = IdxBegin; i < IdxEnd; ++i) {
307 if (!dyn_cast<Constant>(*i))
311 return Folder.CreateGetElementPtr(PC, &IdxBegin[0], IdxEnd - IdxBegin);
313 return Insert(GetElementPtrInst::Create(Ptr, IdxBegin, IdxEnd), Name);
315 Value *CreateGEP(Value *Ptr, Value *Idx, const char *Name = "") {
316 if (Constant *PC = dyn_cast<Constant>(Ptr))
317 if (Constant *IC = dyn_cast<Constant>(Idx))
318 return Folder.CreateGetElementPtr(PC, &IC, 1);
319 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
321 Value *CreateStructGEP(Value *Ptr, unsigned Idx, const char *Name = "") {
322 llvm::Value *Idxs[] = {
323 ConstantInt::get(llvm::Type::Int32Ty, 0),
324 ConstantInt::get(llvm::Type::Int32Ty, Idx)
327 if (Constant *PC = dyn_cast<Constant>(Ptr))
328 return Folder.CreateGetElementPtr(PC, Idxs, 2);
330 return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
332 Value *CreateGlobalString(const char *Str = "", const char *Name = "") {
333 Constant *StrConstant = ConstantArray::get(Str, true);
334 GlobalVariable *gv = new llvm::GlobalVariable(StrConstant->getType(),
336 GlobalValue::InternalLinkage,
339 BB->getParent()->getParent(),
344 Value *CreateGlobalStringPtr(const char *Str = "", const char *Name = "") {
345 Value *gv = CreateGlobalString(Str, Name);
346 Value *zero = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0);
347 Value *Args[] = { zero, zero };
348 return CreateGEP(gv, Args, Args+2, Name);
350 //===--------------------------------------------------------------------===//
351 // Instruction creation methods: Cast/Conversion Operators
352 //===--------------------------------------------------------------------===//
354 Value *CreateTrunc(Value *V, const Type *DestTy, const char *Name = "") {
355 return CreateCast(Instruction::Trunc, V, DestTy, Name);
357 Value *CreateZExt(Value *V, const Type *DestTy, const char *Name = "") {
358 return CreateCast(Instruction::ZExt, V, DestTy, Name);
360 Value *CreateSExt(Value *V, const Type *DestTy, const char *Name = "") {
361 return CreateCast(Instruction::SExt, V, DestTy, Name);
363 Value *CreateFPToUI(Value *V, const Type *DestTy, const char *Name = ""){
364 return CreateCast(Instruction::FPToUI, V, DestTy, Name);
366 Value *CreateFPToSI(Value *V, const Type *DestTy, const char *Name = ""){
367 return CreateCast(Instruction::FPToSI, V, DestTy, Name);
369 Value *CreateUIToFP(Value *V, const Type *DestTy, const char *Name = ""){
370 return CreateCast(Instruction::UIToFP, V, DestTy, Name);
372 Value *CreateSIToFP(Value *V, const Type *DestTy, const char *Name = ""){
373 return CreateCast(Instruction::SIToFP, V, DestTy, Name);
375 Value *CreateFPTrunc(Value *V, const Type *DestTy,
376 const char *Name = "") {
377 return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
379 Value *CreateFPExt(Value *V, const Type *DestTy, const char *Name = "") {
380 return CreateCast(Instruction::FPExt, V, DestTy, Name);
382 Value *CreatePtrToInt(Value *V, const Type *DestTy,
383 const char *Name = "") {
384 return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
386 Value *CreateIntToPtr(Value *V, const Type *DestTy,
387 const char *Name = "") {
388 return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
390 Value *CreateBitCast(Value *V, const Type *DestTy,
391 const char *Name = "") {
392 return CreateCast(Instruction::BitCast, V, DestTy, Name);
395 Value *CreateCast(Instruction::CastOps Op, Value *V, const Type *DestTy,
396 const char *Name = "") {
397 if (V->getType() == DestTy)
399 if (Constant *VC = dyn_cast<Constant>(V))
400 return Folder.CreateCast(Op, VC, DestTy);
401 return Insert(CastInst::Create(Op, V, DestTy), Name);
403 Value *CreateIntCast(Value *V, const Type *DestTy, bool isSigned,
404 const char *Name = "") {
405 if (V->getType() == DestTy)
407 if (Constant *VC = dyn_cast<Constant>(V))
408 return Folder.CreateIntCast(VC, DestTy, isSigned);
409 return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
412 //===--------------------------------------------------------------------===//
413 // Instruction creation methods: Compare Instructions
414 //===--------------------------------------------------------------------===//
416 Value *CreateICmpEQ(Value *LHS, Value *RHS, const char *Name = "") {
417 return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
419 Value *CreateICmpNE(Value *LHS, Value *RHS, const char *Name = "") {
420 return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
422 Value *CreateICmpUGT(Value *LHS, Value *RHS, const char *Name = "") {
423 return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
425 Value *CreateICmpUGE(Value *LHS, Value *RHS, const char *Name = "") {
426 return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
428 Value *CreateICmpULT(Value *LHS, Value *RHS, const char *Name = "") {
429 return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
431 Value *CreateICmpULE(Value *LHS, Value *RHS, const char *Name = "") {
432 return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
434 Value *CreateICmpSGT(Value *LHS, Value *RHS, const char *Name = "") {
435 return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
437 Value *CreateICmpSGE(Value *LHS, Value *RHS, const char *Name = "") {
438 return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
440 Value *CreateICmpSLT(Value *LHS, Value *RHS, const char *Name = "") {
441 return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
443 Value *CreateICmpSLE(Value *LHS, Value *RHS, const char *Name = "") {
444 return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
447 Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const char *Name = "") {
448 return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name);
450 Value *CreateFCmpOGT(Value *LHS, Value *RHS, const char *Name = "") {
451 return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name);
453 Value *CreateFCmpOGE(Value *LHS, Value *RHS, const char *Name = "") {
454 return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name);
456 Value *CreateFCmpOLT(Value *LHS, Value *RHS, const char *Name = "") {
457 return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name);
459 Value *CreateFCmpOLE(Value *LHS, Value *RHS, const char *Name = "") {
460 return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name);
462 Value *CreateFCmpONE(Value *LHS, Value *RHS, const char *Name = "") {
463 return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name);
465 Value *CreateFCmpORD(Value *LHS, Value *RHS, const char *Name = "") {
466 return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name);
468 Value *CreateFCmpUNO(Value *LHS, Value *RHS, const char *Name = "") {
469 return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name);
471 Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const char *Name = "") {
472 return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name);
474 Value *CreateFCmpUGT(Value *LHS, Value *RHS, const char *Name = "") {
475 return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name);
477 Value *CreateFCmpUGE(Value *LHS, Value *RHS, const char *Name = "") {
478 return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name);
480 Value *CreateFCmpULT(Value *LHS, Value *RHS, const char *Name = "") {
481 return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name);
483 Value *CreateFCmpULE(Value *LHS, Value *RHS, const char *Name = "") {
484 return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name);
486 Value *CreateFCmpUNE(Value *LHS, Value *RHS, const char *Name = "") {
487 return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name);
490 Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
491 const char *Name = "") {
492 if (Constant *LC = dyn_cast<Constant>(LHS))
493 if (Constant *RC = dyn_cast<Constant>(RHS))
494 return Folder.CreateICmp(P, LC, RC);
495 return Insert(new ICmpInst(P, LHS, RHS), Name);
497 Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
498 const char *Name = "") {
499 if (Constant *LC = dyn_cast<Constant>(LHS))
500 if (Constant *RC = dyn_cast<Constant>(RHS))
501 return Folder.CreateFCmp(P, LC, RC);
502 return Insert(new FCmpInst(P, LHS, RHS), Name);
505 Value *CreateVICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
506 const char *Name = "") {
507 if (Constant *LC = dyn_cast<Constant>(LHS))
508 if (Constant *RC = dyn_cast<Constant>(RHS))
509 return Folder.CreateVICmp(P, LC, RC);
510 return Insert(new VICmpInst(P, LHS, RHS), Name);
512 Value *CreateVFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
513 const char *Name = "") {
514 if (Constant *LC = dyn_cast<Constant>(LHS))
515 if (Constant *RC = dyn_cast<Constant>(RHS))
516 return Folder.CreateVFCmp(P, LC, RC);
517 return Insert(new VFCmpInst(P, LHS, RHS), Name);
520 //===--------------------------------------------------------------------===//
521 // Instruction creation methods: Other Instructions
522 //===--------------------------------------------------------------------===//
524 PHINode *CreatePHI(const Type *Ty, const char *Name = "") {
525 return Insert(PHINode::Create(Ty), Name);
528 CallInst *CreateCall(Value *Callee, const char *Name = "") {
529 return Insert(CallInst::Create(Callee), Name);
531 CallInst *CreateCall(Value *Callee, Value *Arg, const char *Name = "") {
532 return Insert(CallInst::Create(Callee, Arg), Name);
534 CallInst *CreateCall2(Value *Callee, Value *Arg1, Value *Arg2,
535 const char *Name = "") {
536 Value *Args[] = { Arg1, Arg2 };
537 return Insert(CallInst::Create(Callee, Args, Args+2), Name);
539 CallInst *CreateCall3(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
540 const char *Name = "") {
541 Value *Args[] = { Arg1, Arg2, Arg3 };
542 return Insert(CallInst::Create(Callee, Args, Args+3), Name);
544 CallInst *CreateCall4(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
545 Value *Arg4, const char *Name = "") {
546 Value *Args[] = { Arg1, Arg2, Arg3, Arg4 };
547 return Insert(CallInst::Create(Callee, Args, Args+4), Name);
550 template<typename InputIterator>
551 CallInst *CreateCall(Value *Callee, InputIterator ArgBegin,
552 InputIterator ArgEnd, const char *Name = "") {
553 return Insert(CallInst::Create(Callee, ArgBegin, ArgEnd), Name);
556 Value *CreateSelect(Value *C, Value *True, Value *False,
557 const char *Name = "") {
558 if (Constant *CC = dyn_cast<Constant>(C))
559 if (Constant *TC = dyn_cast<Constant>(True))
560 if (Constant *FC = dyn_cast<Constant>(False))
561 return Folder.CreateSelect(CC, TC, FC);
562 return Insert(SelectInst::Create(C, True, False), Name);
565 VAArgInst *CreateVAArg(Value *List, const Type *Ty, const char *Name = "") {
566 return Insert(new VAArgInst(List, Ty), Name);
569 Value *CreateExtractElement(Value *Vec, Value *Idx,
570 const char *Name = "") {
571 if (Constant *VC = dyn_cast<Constant>(Vec))
572 if (Constant *IC = dyn_cast<Constant>(Idx))
573 return Folder.CreateExtractElement(VC, IC);
574 return Insert(new ExtractElementInst(Vec, Idx), Name);
577 Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
578 const char *Name = "") {
579 if (Constant *VC = dyn_cast<Constant>(Vec))
580 if (Constant *NC = dyn_cast<Constant>(NewElt))
581 if (Constant *IC = dyn_cast<Constant>(Idx))
582 return Folder.CreateInsertElement(VC, NC, IC);
583 return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
586 Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
587 const char *Name = "") {
588 if (Constant *V1C = dyn_cast<Constant>(V1))
589 if (Constant *V2C = dyn_cast<Constant>(V2))
590 if (Constant *MC = dyn_cast<Constant>(Mask))
591 return Folder.CreateShuffleVector(V1C, V2C, MC);
592 return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
595 Value *CreateExtractValue(Value *Agg, unsigned Idx,
596 const char *Name = "") {
597 if (Constant *AggC = dyn_cast<Constant>(Agg))
598 return Folder.CreateExtractValue(AggC, &Idx, 1);
599 return Insert(ExtractValueInst::Create(Agg, Idx), Name);
602 template<typename InputIterator>
603 Value *CreateExtractValue(Value *Agg,
604 InputIterator IdxBegin,
605 InputIterator IdxEnd,
606 const char *Name = "") {
607 if (Constant *AggC = dyn_cast<Constant>(Agg))
608 return Folder.CreateExtractValue(AggC, IdxBegin, IdxEnd - IdxBegin);
609 return Insert(ExtractValueInst::Create(Agg, IdxBegin, IdxEnd), Name);
612 Value *CreateInsertValue(Value *Agg, Value *Val, unsigned Idx,
613 const char *Name = "") {
614 if (Constant *AggC = dyn_cast<Constant>(Agg))
615 if (Constant *ValC = dyn_cast<Constant>(Val))
616 return Folder.CreateInsertValue(AggC, ValC, &Idx, 1);
617 return Insert(InsertValueInst::Create(Agg, Val, Idx), Name);
620 template<typename InputIterator>
621 Value *CreateInsertValue(Value *Agg, Value *Val,
622 InputIterator IdxBegin,
623 InputIterator IdxEnd,
624 const char *Name = "") {
625 if (Constant *AggC = dyn_cast<Constant>(Agg))
626 if (Constant *ValC = dyn_cast<Constant>(Val))
627 return Folder.CreateInsertValue(AggC, ValC,
628 IdxBegin, IdxEnd - IdxBegin);
629 return Insert(InsertValueInst::Create(Agg, Val, IdxBegin, IdxEnd), Name);
632 //===--------------------------------------------------------------------===//
633 // Utility creation methods
634 //===--------------------------------------------------------------------===//
636 /// CreateIsNull - Return an i1 value testing if \arg Arg is null.
637 Value *CreateIsNull(Value *Arg, const char *Name = "") {
638 return CreateICmpEQ(Arg, llvm::Constant::getNullValue(Arg->getType()),
642 /// CreateIsNotNull - Return an i1 value testing if \arg Arg is not null.
643 Value *CreateIsNotNull(Value *Arg, const char *Name = "") {
644 return CreateICmpNE(Arg, llvm::Constant::getNullValue(Arg->getType()),