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/Instructions.h"
19 #include "llvm/BasicBlock.h"
20 #include "llvm/ADT/ArrayRef.h"
21 #include "llvm/ADT/StringRef.h"
22 #include "llvm/ADT/Twine.h"
23 #include "llvm/Support/ConstantFolder.h"
28 /// IRBuilderDefaultInserter - This provides the default implementation of the
29 /// IRBuilder 'InsertHelper' method that is called whenever an instruction is
30 /// created by IRBuilder and needs to be inserted. By default, this inserts the
31 /// instruction at the insertion point.
32 template <bool preserveNames = true>
33 class IRBuilderDefaultInserter {
35 void InsertHelper(Instruction *I, const Twine &Name,
36 BasicBlock *BB, BasicBlock::iterator InsertPt) const {
37 if (BB) BB->getInstList().insert(InsertPt, I);
43 /// IRBuilderBase - Common base class shared among various IRBuilders.
45 DebugLoc CurDbgLocation;
48 BasicBlock::iterator InsertPt;
52 IRBuilderBase(LLVMContext &context)
54 ClearInsertionPoint();
57 //===--------------------------------------------------------------------===//
58 // Builder configuration methods
59 //===--------------------------------------------------------------------===//
61 /// ClearInsertionPoint - Clear the insertion point: created instructions will
62 /// not be inserted into a block.
63 void ClearInsertionPoint() {
67 BasicBlock *GetInsertBlock() const { return BB; }
68 BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
69 LLVMContext &getContext() const { return Context; }
71 /// SetInsertPoint - This specifies that created instructions should be
72 /// appended to the end of the specified block.
73 void SetInsertPoint(BasicBlock *TheBB) {
78 /// SetInsertPoint - This specifies that created instructions should be
79 /// inserted before the specified instruction.
80 void SetInsertPoint(Instruction *I) {
83 SetCurrentDebugLocation(I->getDebugLoc());
86 /// SetInsertPoint - This specifies that created instructions should be
87 /// inserted at the specified point.
88 void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
93 /// SetInsertPoint(Use) - Find the nearest point that dominates this use, and
94 /// specify that created instructions should be inserted at this point.
95 void SetInsertPoint(Use &U) {
96 Instruction *UseInst = cast<Instruction>(U.getUser());
97 if (PHINode *Phi = dyn_cast<PHINode>(UseInst)) {
98 BasicBlock *PredBB = Phi->getIncomingBlock(U);
99 assert(U != PredBB->getTerminator() && "critical edge not split");
100 SetInsertPoint(PredBB, PredBB->getTerminator());
103 SetInsertPoint(UseInst);
106 /// SetCurrentDebugLocation - Set location information used by debugging
108 void SetCurrentDebugLocation(const DebugLoc &L) {
112 /// getCurrentDebugLocation - Get location information used by debugging
114 DebugLoc getCurrentDebugLocation() const { return CurDbgLocation; }
116 /// SetInstDebugLocation - If this builder has a current debug location, set
117 /// it on the specified instruction.
118 void SetInstDebugLocation(Instruction *I) const {
119 if (!CurDbgLocation.isUnknown())
120 I->setDebugLoc(CurDbgLocation);
123 /// getCurrentFunctionReturnType - Get the return type of the current function
124 /// that we're emitting into.
125 Type *getCurrentFunctionReturnType() const;
127 /// InsertPoint - A saved insertion point.
130 BasicBlock::iterator Point;
133 /// Creates a new insertion point which doesn't point to anything.
134 InsertPoint() : Block(0) {}
136 /// Creates a new insertion point at the given location.
137 InsertPoint(BasicBlock *InsertBlock, BasicBlock::iterator InsertPoint)
138 : Block(InsertBlock), Point(InsertPoint) {}
140 /// isSet - Returns true if this insert point is set.
141 bool isSet() const { return (Block != 0); }
143 llvm::BasicBlock *getBlock() const { return Block; }
144 llvm::BasicBlock::iterator getPoint() const { return Point; }
147 /// saveIP - Returns the current insert point.
148 InsertPoint saveIP() const {
149 return InsertPoint(GetInsertBlock(), GetInsertPoint());
152 /// saveAndClearIP - Returns the current insert point, clearing it
154 InsertPoint saveAndClearIP() {
155 InsertPoint IP(GetInsertBlock(), GetInsertPoint());
156 ClearInsertionPoint();
160 /// restoreIP - Sets the current insert point to a previously-saved
162 void restoreIP(InsertPoint IP) {
164 SetInsertPoint(IP.getBlock(), IP.getPoint());
166 ClearInsertionPoint();
169 //===--------------------------------------------------------------------===//
170 // Miscellaneous creation methods.
171 //===--------------------------------------------------------------------===//
173 /// CreateGlobalString - Make a new global variable with an initializer that
174 /// has array of i8 type filled in with the nul terminated string value
175 /// specified. The new global variable will be marked mergable with any
176 /// others of the same contents. If Name is specified, it is the name of the
177 /// global variable created.
178 Value *CreateGlobalString(StringRef Str, const Twine &Name = "");
180 /// getInt1 - Get a constant value representing either true or false.
181 ConstantInt *getInt1(bool V) {
182 return ConstantInt::get(getInt1Ty(), V);
185 /// getTrue - Get the constant value for i1 true.
186 ConstantInt *getTrue() {
187 return ConstantInt::getTrue(Context);
190 /// getFalse - Get the constant value for i1 false.
191 ConstantInt *getFalse() {
192 return ConstantInt::getFalse(Context);
195 /// getInt8 - Get a constant 8-bit value.
196 ConstantInt *getInt8(uint8_t C) {
197 return ConstantInt::get(getInt8Ty(), C);
200 /// getInt16 - Get a constant 16-bit value.
201 ConstantInt *getInt16(uint16_t C) {
202 return ConstantInt::get(getInt16Ty(), C);
205 /// getInt32 - Get a constant 32-bit value.
206 ConstantInt *getInt32(uint32_t C) {
207 return ConstantInt::get(getInt32Ty(), C);
210 /// getInt64 - Get a constant 64-bit value.
211 ConstantInt *getInt64(uint64_t C) {
212 return ConstantInt::get(getInt64Ty(), C);
215 /// getInt - Get a constant integer value.
216 ConstantInt *getInt(const APInt &AI) {
217 return ConstantInt::get(Context, AI);
220 //===--------------------------------------------------------------------===//
221 // Type creation methods
222 //===--------------------------------------------------------------------===//
224 /// getInt1Ty - Fetch the type representing a single bit
225 IntegerType *getInt1Ty() {
226 return Type::getInt1Ty(Context);
229 /// getInt8Ty - Fetch the type representing an 8-bit integer.
230 IntegerType *getInt8Ty() {
231 return Type::getInt8Ty(Context);
234 /// getInt16Ty - Fetch the type representing a 16-bit integer.
235 IntegerType *getInt16Ty() {
236 return Type::getInt16Ty(Context);
239 /// getInt32Ty - Fetch the type resepresenting a 32-bit integer.
240 IntegerType *getInt32Ty() {
241 return Type::getInt32Ty(Context);
244 /// getInt64Ty - Fetch the type representing a 64-bit integer.
245 IntegerType *getInt64Ty() {
246 return Type::getInt64Ty(Context);
249 /// getFloatTy - Fetch the type representing a 32-bit floating point value.
251 return Type::getFloatTy(Context);
254 /// getDoubleTy - Fetch the type representing a 64-bit floating point value.
255 Type *getDoubleTy() {
256 return Type::getDoubleTy(Context);
259 /// getVoidTy - Fetch the type representing void.
261 return Type::getVoidTy(Context);
264 PointerType *getInt8PtrTy(unsigned AddrSpace = 0) {
265 return Type::getInt8PtrTy(Context, AddrSpace);
268 //===--------------------------------------------------------------------===//
269 // Intrinsic creation methods
270 //===--------------------------------------------------------------------===//
272 /// CreateMemSet - Create and insert a memset to the specified pointer and the
273 /// specified value. If the pointer isn't an i8*, it will be converted. If a
274 /// TBAA tag is specified, it will be added to the instruction.
275 CallInst *CreateMemSet(Value *Ptr, Value *Val, uint64_t Size, unsigned Align,
276 bool isVolatile = false, MDNode *TBAATag = 0) {
277 return CreateMemSet(Ptr, Val, getInt64(Size), Align, isVolatile, TBAATag);
280 CallInst *CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
281 bool isVolatile = false, MDNode *TBAATag = 0);
283 /// CreateMemCpy - Create and insert a memcpy between the specified pointers.
284 /// If the pointers aren't i8*, they will be converted. If a TBAA tag is
285 /// specified, it will be added to the instruction.
286 CallInst *CreateMemCpy(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
287 bool isVolatile = false, MDNode *TBAATag = 0) {
288 return CreateMemCpy(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag);
291 CallInst *CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
292 bool isVolatile = false, MDNode *TBAATag = 0);
294 /// CreateMemMove - Create and insert a memmove between the specified
295 /// pointers. If the pointers aren't i8*, they will be converted. If a TBAA
296 /// tag is specified, it will be added to the instruction.
297 CallInst *CreateMemMove(Value *Dst, Value *Src, uint64_t Size, unsigned Align,
298 bool isVolatile = false, MDNode *TBAATag = 0) {
299 return CreateMemMove(Dst, Src, getInt64(Size), Align, isVolatile, TBAATag);
302 CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
303 bool isVolatile = false, MDNode *TBAATag = 0);
305 /// CreateLifetimeStart - Create a lifetime.start intrinsic. If the pointer
306 /// isn't i8* it will be converted.
307 CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = 0);
309 /// CreateLifetimeEnd - Create a lifetime.end intrinsic. If the pointer isn't
310 /// i8* it will be converted.
311 CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = 0);
314 Value *getCastedInt8PtrValue(Value *Ptr);
317 /// IRBuilder - This provides a uniform API for creating instructions and
318 /// inserting them into a basic block: either at the end of a BasicBlock, or
319 /// at a specific iterator location in a block.
321 /// Note that the builder does not expose the full generality of LLVM
322 /// instructions. For access to extra instruction properties, use the mutators
323 /// (e.g. setVolatile) on the instructions after they have been created.
324 /// The first template argument handles whether or not to preserve names in the
325 /// final instruction output. This defaults to on. The second template argument
326 /// specifies a class to use for creating constants. This defaults to creating
327 /// minimally folded constants. The fourth template argument allows clients to
328 /// specify custom insertion hooks that are called on every newly created
330 template<bool preserveNames = true, typename T = ConstantFolder,
331 typename Inserter = IRBuilderDefaultInserter<preserveNames> >
332 class IRBuilder : public IRBuilderBase, public Inserter {
335 IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter())
336 : IRBuilderBase(C), Inserter(I), Folder(F) {
339 explicit IRBuilder(LLVMContext &C) : IRBuilderBase(C), Folder() {
342 explicit IRBuilder(BasicBlock *TheBB, const T &F)
343 : IRBuilderBase(TheBB->getContext()), Folder(F) {
344 SetInsertPoint(TheBB);
347 explicit IRBuilder(BasicBlock *TheBB)
348 : IRBuilderBase(TheBB->getContext()), Folder() {
349 SetInsertPoint(TheBB);
352 explicit IRBuilder(Instruction *IP)
353 : IRBuilderBase(IP->getContext()), Folder() {
355 SetCurrentDebugLocation(IP->getDebugLoc());
358 explicit IRBuilder(Use &U)
359 : IRBuilderBase(U->getContext()), Folder() {
361 SetCurrentDebugLocation(cast<Instruction>(U.getUser())->getDebugLoc());
364 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F)
365 : IRBuilderBase(TheBB->getContext()), Folder(F) {
366 SetInsertPoint(TheBB, IP);
369 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP)
370 : IRBuilderBase(TheBB->getContext()), Folder() {
371 SetInsertPoint(TheBB, IP);
374 /// getFolder - Get the constant folder being used.
375 const T &getFolder() { return Folder; }
377 /// isNamePreserving - Return true if this builder is configured to actually
378 /// add the requested names to IR created through it.
379 bool isNamePreserving() const { return preserveNames; }
381 /// Insert - Insert and return the specified instruction.
382 template<typename InstTy>
383 InstTy *Insert(InstTy *I, const Twine &Name = "") const {
384 this->InsertHelper(I, Name, BB, InsertPt);
385 if (!getCurrentDebugLocation().isUnknown())
386 this->SetInstDebugLocation(I);
390 /// Insert - No-op overload to handle constants.
391 Constant *Insert(Constant *C, const Twine& = "") const {
395 //===--------------------------------------------------------------------===//
396 // Instruction creation methods: Terminators
397 //===--------------------------------------------------------------------===//
399 /// CreateRetVoid - Create a 'ret void' instruction.
400 ReturnInst *CreateRetVoid() {
401 return Insert(ReturnInst::Create(Context));
405 /// CreateRet - Create a 'ret <val>' instruction.
407 ReturnInst *CreateRet(Value *V) {
408 return Insert(ReturnInst::Create(Context, V));
411 /// CreateAggregateRet - Create a sequence of N insertvalue instructions,
412 /// with one Value from the retVals array each, that build a aggregate
413 /// return value one value at a time, and a ret instruction to return
414 /// the resulting aggregate value. This is a convenience function for
415 /// code that uses aggregate return values as a vehicle for having
416 /// multiple return values.
418 ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
419 Value *V = UndefValue::get(getCurrentFunctionReturnType());
420 for (unsigned i = 0; i != N; ++i)
421 V = CreateInsertValue(V, retVals[i], i, "mrv");
422 return Insert(ReturnInst::Create(Context, V));
425 /// CreateBr - Create an unconditional 'br label X' instruction.
426 BranchInst *CreateBr(BasicBlock *Dest) {
427 return Insert(BranchInst::Create(Dest));
430 /// CreateCondBr - Create a conditional 'br Cond, TrueDest, FalseDest'
432 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False) {
433 return Insert(BranchInst::Create(True, False, Cond));
436 /// CreateSwitch - Create a switch instruction with the specified value,
437 /// default dest, and with a hint for the number of cases that will be added
438 /// (for efficient allocation).
439 SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10) {
440 return Insert(SwitchInst::Create(V, Dest, NumCases));
443 /// CreateIndirectBr - Create an indirect branch instruction with the
444 /// specified address operand, with an optional hint for the number of
445 /// destinations that will be added (for efficient allocation).
446 IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
447 return Insert(IndirectBrInst::Create(Addr, NumDests));
450 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
451 BasicBlock *UnwindDest, const Twine &Name = "") {
452 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest,
453 ArrayRef<Value *>()),
456 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
457 BasicBlock *UnwindDest, Value *Arg1,
458 const Twine &Name = "") {
459 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Arg1),
462 InvokeInst *CreateInvoke3(Value *Callee, BasicBlock *NormalDest,
463 BasicBlock *UnwindDest, Value *Arg1,
464 Value *Arg2, Value *Arg3,
465 const Twine &Name = "") {
466 Value *Args[] = { Arg1, Arg2, Arg3 };
467 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
470 /// CreateInvoke - Create an invoke instruction.
471 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
472 BasicBlock *UnwindDest, ArrayRef<Value *> Args,
473 const Twine &Name = "") {
474 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args),
478 UnwindInst *CreateUnwind() {
479 return Insert(new UnwindInst(Context));
482 UnreachableInst *CreateUnreachable() {
483 return Insert(new UnreachableInst(Context));
486 //===--------------------------------------------------------------------===//
487 // Instruction creation methods: Binary Operators
488 //===--------------------------------------------------------------------===//
490 BinaryOperator *CreateInsertNUWNSWBinOp(BinaryOperator::BinaryOps Opc,
491 Value *LHS, Value *RHS,
493 bool HasNUW, bool HasNSW) {
494 BinaryOperator *BO = Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
495 if (HasNUW) BO->setHasNoUnsignedWrap();
496 if (HasNSW) BO->setHasNoSignedWrap();
500 Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "",
501 bool HasNUW = false, bool HasNSW = false) {
502 if (Constant *LC = dyn_cast<Constant>(LHS))
503 if (Constant *RC = dyn_cast<Constant>(RHS))
504 return Insert(Folder.CreateAdd(LC, RC, HasNUW, HasNSW), Name);
505 return CreateInsertNUWNSWBinOp(Instruction::Add, LHS, RHS, Name,
508 Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
509 return CreateAdd(LHS, RHS, Name, false, true);
511 Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
512 return CreateAdd(LHS, RHS, Name, true, false);
514 Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
515 if (Constant *LC = dyn_cast<Constant>(LHS))
516 if (Constant *RC = dyn_cast<Constant>(RHS))
517 return Insert(Folder.CreateFAdd(LC, RC), Name);
518 return Insert(BinaryOperator::CreateFAdd(LHS, RHS), Name);
520 Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "",
521 bool HasNUW = false, bool HasNSW = false) {
522 if (Constant *LC = dyn_cast<Constant>(LHS))
523 if (Constant *RC = dyn_cast<Constant>(RHS))
524 return Insert(Folder.CreateSub(LC, RC), Name);
525 return CreateInsertNUWNSWBinOp(Instruction::Sub, LHS, RHS, Name,
528 Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
529 return CreateSub(LHS, RHS, Name, false, true);
531 Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
532 return CreateSub(LHS, RHS, Name, true, false);
534 Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "") {
535 if (Constant *LC = dyn_cast<Constant>(LHS))
536 if (Constant *RC = dyn_cast<Constant>(RHS))
537 return Insert(Folder.CreateFSub(LC, RC), Name);
538 return Insert(BinaryOperator::CreateFSub(LHS, RHS), Name);
540 Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "",
541 bool HasNUW = false, bool HasNSW = false) {
542 if (Constant *LC = dyn_cast<Constant>(LHS))
543 if (Constant *RC = dyn_cast<Constant>(RHS))
544 return Insert(Folder.CreateMul(LC, RC), Name);
545 return CreateInsertNUWNSWBinOp(Instruction::Mul, LHS, RHS, Name,
548 Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
549 return CreateMul(LHS, RHS, Name, false, true);
551 Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
552 return CreateMul(LHS, RHS, Name, true, false);
554 Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "") {
555 if (Constant *LC = dyn_cast<Constant>(LHS))
556 if (Constant *RC = dyn_cast<Constant>(RHS))
557 return Insert(Folder.CreateFMul(LC, RC), Name);
558 return Insert(BinaryOperator::CreateFMul(LHS, RHS), Name);
560 Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "",
561 bool isExact = false) {
562 if (Constant *LC = dyn_cast<Constant>(LHS))
563 if (Constant *RC = dyn_cast<Constant>(RHS))
564 return Insert(Folder.CreateUDiv(LC, RC, isExact), Name);
566 return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
567 return Insert(BinaryOperator::CreateExactUDiv(LHS, RHS), Name);
569 Value *CreateExactUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
570 return CreateUDiv(LHS, RHS, Name, true);
572 Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "",
573 bool isExact = false) {
574 if (Constant *LC = dyn_cast<Constant>(LHS))
575 if (Constant *RC = dyn_cast<Constant>(RHS))
576 return Insert(Folder.CreateSDiv(LC, RC, isExact), Name);
578 return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
579 return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
581 Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
582 return CreateSDiv(LHS, RHS, Name, true);
584 Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
585 if (Constant *LC = dyn_cast<Constant>(LHS))
586 if (Constant *RC = dyn_cast<Constant>(RHS))
587 return Insert(Folder.CreateFDiv(LC, RC), Name);
588 return Insert(BinaryOperator::CreateFDiv(LHS, RHS), Name);
590 Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
591 if (Constant *LC = dyn_cast<Constant>(LHS))
592 if (Constant *RC = dyn_cast<Constant>(RHS))
593 return Insert(Folder.CreateURem(LC, RC), Name);
594 return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
596 Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
597 if (Constant *LC = dyn_cast<Constant>(LHS))
598 if (Constant *RC = dyn_cast<Constant>(RHS))
599 return Insert(Folder.CreateSRem(LC, RC), Name);
600 return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
602 Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "") {
603 if (Constant *LC = dyn_cast<Constant>(LHS))
604 if (Constant *RC = dyn_cast<Constant>(RHS))
605 return Insert(Folder.CreateFRem(LC, RC), Name);
606 return Insert(BinaryOperator::CreateFRem(LHS, RHS), Name);
609 Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "",
610 bool HasNUW = false, bool HasNSW = false) {
611 if (Constant *LC = dyn_cast<Constant>(LHS))
612 if (Constant *RC = dyn_cast<Constant>(RHS))
613 return Insert(Folder.CreateShl(LC, RC, HasNUW, HasNSW), Name);
614 return CreateInsertNUWNSWBinOp(Instruction::Shl, LHS, RHS, Name,
617 Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "",
618 bool HasNUW = false, bool HasNSW = false) {
619 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
622 Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "",
623 bool HasNUW = false, bool HasNSW = false) {
624 return CreateShl(LHS, ConstantInt::get(LHS->getType(), RHS), Name,
628 Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "",
629 bool isExact = false) {
630 if (Constant *LC = dyn_cast<Constant>(LHS))
631 if (Constant *RC = dyn_cast<Constant>(RHS))
632 return Insert(Folder.CreateLShr(LC, RC, isExact), Name);
634 return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
635 return Insert(BinaryOperator::CreateExactLShr(LHS, RHS), Name);
637 Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
638 bool isExact = false) {
639 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
641 Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
642 bool isExact = false) {
643 return CreateLShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
646 Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "",
647 bool isExact = false) {
648 if (Constant *LC = dyn_cast<Constant>(LHS))
649 if (Constant *RC = dyn_cast<Constant>(RHS))
650 return Insert(Folder.CreateAShr(LC, RC, isExact), Name);
652 return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
653 return Insert(BinaryOperator::CreateExactAShr(LHS, RHS), Name);
655 Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "",
656 bool isExact = false) {
657 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
659 Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "",
660 bool isExact = false) {
661 return CreateAShr(LHS, ConstantInt::get(LHS->getType(), RHS), Name,isExact);
664 Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
665 if (Constant *RC = dyn_cast<Constant>(RHS)) {
666 if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
667 return LHS; // LHS & -1 -> LHS
668 if (Constant *LC = dyn_cast<Constant>(LHS))
669 return Insert(Folder.CreateAnd(LC, RC), Name);
671 return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
673 Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
674 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
676 Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
677 return CreateAnd(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
680 Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
681 if (Constant *RC = dyn_cast<Constant>(RHS)) {
682 if (RC->isNullValue())
683 return LHS; // LHS | 0 -> LHS
684 if (Constant *LC = dyn_cast<Constant>(LHS))
685 return Insert(Folder.CreateOr(LC, RC), Name);
687 return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
689 Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
690 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
692 Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
693 return CreateOr(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
696 Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
697 if (Constant *LC = dyn_cast<Constant>(LHS))
698 if (Constant *RC = dyn_cast<Constant>(RHS))
699 return Insert(Folder.CreateXor(LC, RC), Name);
700 return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
702 Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
703 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
705 Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
706 return CreateXor(LHS, ConstantInt::get(LHS->getType(), RHS), Name);
709 Value *CreateBinOp(Instruction::BinaryOps Opc,
710 Value *LHS, Value *RHS, const Twine &Name = "") {
711 if (Constant *LC = dyn_cast<Constant>(LHS))
712 if (Constant *RC = dyn_cast<Constant>(RHS))
713 return Insert(Folder.CreateBinOp(Opc, LC, RC), Name);
714 return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
717 Value *CreateNeg(Value *V, const Twine &Name = "",
718 bool HasNUW = false, bool HasNSW = false) {
719 if (Constant *VC = dyn_cast<Constant>(V))
720 return Insert(Folder.CreateNeg(VC, HasNUW, HasNSW), Name);
721 BinaryOperator *BO = Insert(BinaryOperator::CreateNeg(V), Name);
722 if (HasNUW) BO->setHasNoUnsignedWrap();
723 if (HasNSW) BO->setHasNoSignedWrap();
726 Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
727 return CreateNeg(V, Name, false, true);
729 Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
730 return CreateNeg(V, Name, true, false);
732 Value *CreateFNeg(Value *V, const Twine &Name = "") {
733 if (Constant *VC = dyn_cast<Constant>(V))
734 return Insert(Folder.CreateFNeg(VC), Name);
735 return Insert(BinaryOperator::CreateFNeg(V), Name);
737 Value *CreateNot(Value *V, const Twine &Name = "") {
738 if (Constant *VC = dyn_cast<Constant>(V))
739 return Insert(Folder.CreateNot(VC), Name);
740 return Insert(BinaryOperator::CreateNot(V), Name);
743 //===--------------------------------------------------------------------===//
744 // Instruction creation methods: Memory Instructions
745 //===--------------------------------------------------------------------===//
747 AllocaInst *CreateAlloca(Type *Ty, Value *ArraySize = 0,
748 const Twine &Name = "") {
749 return Insert(new AllocaInst(Ty, ArraySize), Name);
751 // Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
752 // converting the string to 'bool' for the isVolatile parameter.
753 LoadInst *CreateLoad(Value *Ptr, const char *Name) {
754 return Insert(new LoadInst(Ptr), Name);
756 LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
757 return Insert(new LoadInst(Ptr), Name);
759 LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
760 return Insert(new LoadInst(Ptr, 0, isVolatile), Name);
762 StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
763 return Insert(new StoreInst(Val, Ptr, isVolatile));
765 Value *CreateGEP(Value *Ptr, ArrayRef<Value *> IdxList,
766 const Twine &Name = "") {
767 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
768 // Every index must be constant.
770 for (i = 0, e = IdxList.size(); i != e; ++i)
771 if (!isa<Constant>(IdxList[i]))
774 return Insert(Folder.CreateGetElementPtr(PC, IdxList), Name);
776 return Insert(GetElementPtrInst::Create(Ptr, IdxList.begin(),
780 Value *CreateInBoundsGEP(Value *Ptr, ArrayRef<Value *> IdxList,
781 const Twine &Name = "") {
782 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
783 // Every index must be constant.
785 for (i = 0, e = IdxList.size(); i != e; ++i)
786 if (!isa<Constant>(IdxList[i]))
789 return Insert(Folder.CreateInBoundsGetElementPtr(PC, IdxList), Name);
791 return Insert(GetElementPtrInst::CreateInBounds(Ptr, IdxList.begin(),
795 Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
796 if (Constant *PC = dyn_cast<Constant>(Ptr))
797 if (Constant *IC = dyn_cast<Constant>(Idx))
798 return Insert(Folder.CreateGetElementPtr(PC, IC), Name);
799 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
801 Value *CreateInBoundsGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
802 if (Constant *PC = dyn_cast<Constant>(Ptr))
803 if (Constant *IC = dyn_cast<Constant>(Idx))
804 return Insert(Folder.CreateInBoundsGetElementPtr(PC, IC), Name);
805 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
807 Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
808 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
810 if (Constant *PC = dyn_cast<Constant>(Ptr))
811 return Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
813 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
815 Value *CreateConstInBoundsGEP1_32(Value *Ptr, unsigned Idx0,
816 const Twine &Name = "") {
817 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
819 if (Constant *PC = dyn_cast<Constant>(Ptr))
820 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
822 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
824 Value *CreateConstGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
825 const Twine &Name = "") {
827 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
828 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
831 if (Constant *PC = dyn_cast<Constant>(Ptr))
832 return Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
834 return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
836 Value *CreateConstInBoundsGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
837 const Twine &Name = "") {
839 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
840 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
843 if (Constant *PC = dyn_cast<Constant>(Ptr))
844 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
846 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
848 Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
849 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
851 if (Constant *PC = dyn_cast<Constant>(Ptr))
852 return Insert(Folder.CreateGetElementPtr(PC, Idx), Name);
854 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
856 Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
857 const Twine &Name = "") {
858 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
860 if (Constant *PC = dyn_cast<Constant>(Ptr))
861 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idx), Name);
863 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
865 Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
866 const Twine &Name = "") {
868 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
869 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
872 if (Constant *PC = dyn_cast<Constant>(Ptr))
873 return Insert(Folder.CreateGetElementPtr(PC, Idxs), Name);
875 return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
877 Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
878 const Twine &Name = "") {
880 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
881 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
884 if (Constant *PC = dyn_cast<Constant>(Ptr))
885 return Insert(Folder.CreateInBoundsGetElementPtr(PC, Idxs), Name);
887 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
889 Value *CreateStructGEP(Value *Ptr, unsigned Idx, const Twine &Name = "") {
890 return CreateConstInBoundsGEP2_32(Ptr, 0, Idx, Name);
893 /// CreateGlobalStringPtr - Same as CreateGlobalString, but return a pointer
894 /// with "i8*" type instead of a pointer to array of i8.
895 Value *CreateGlobalStringPtr(StringRef Str, const Twine &Name = "") {
896 Value *gv = CreateGlobalString(Str, Name);
897 Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
898 Value *Args[] = { zero, zero };
899 return CreateInBoundsGEP(gv, Args, Name);
902 //===--------------------------------------------------------------------===//
903 // Instruction creation methods: Cast/Conversion Operators
904 //===--------------------------------------------------------------------===//
906 Value *CreateTrunc(Value *V, Type *DestTy, const Twine &Name = "") {
907 return CreateCast(Instruction::Trunc, V, DestTy, Name);
909 Value *CreateZExt(Value *V, Type *DestTy, const Twine &Name = "") {
910 return CreateCast(Instruction::ZExt, V, DestTy, Name);
912 Value *CreateSExt(Value *V, Type *DestTy, const Twine &Name = "") {
913 return CreateCast(Instruction::SExt, V, DestTy, Name);
915 Value *CreateFPToUI(Value *V, Type *DestTy, const Twine &Name = ""){
916 return CreateCast(Instruction::FPToUI, V, DestTy, Name);
918 Value *CreateFPToSI(Value *V, Type *DestTy, const Twine &Name = ""){
919 return CreateCast(Instruction::FPToSI, V, DestTy, Name);
921 Value *CreateUIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
922 return CreateCast(Instruction::UIToFP, V, DestTy, Name);
924 Value *CreateSIToFP(Value *V, Type *DestTy, const Twine &Name = ""){
925 return CreateCast(Instruction::SIToFP, V, DestTy, Name);
927 Value *CreateFPTrunc(Value *V, Type *DestTy,
928 const Twine &Name = "") {
929 return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
931 Value *CreateFPExt(Value *V, Type *DestTy, const Twine &Name = "") {
932 return CreateCast(Instruction::FPExt, V, DestTy, Name);
934 Value *CreatePtrToInt(Value *V, Type *DestTy,
935 const Twine &Name = "") {
936 return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
938 Value *CreateIntToPtr(Value *V, Type *DestTy,
939 const Twine &Name = "") {
940 return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
942 Value *CreateBitCast(Value *V, Type *DestTy,
943 const Twine &Name = "") {
944 return CreateCast(Instruction::BitCast, V, DestTy, Name);
946 Value *CreateZExtOrBitCast(Value *V, Type *DestTy,
947 const Twine &Name = "") {
948 if (V->getType() == DestTy)
950 if (Constant *VC = dyn_cast<Constant>(V))
951 return Insert(Folder.CreateZExtOrBitCast(VC, DestTy), Name);
952 return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
954 Value *CreateSExtOrBitCast(Value *V, Type *DestTy,
955 const Twine &Name = "") {
956 if (V->getType() == DestTy)
958 if (Constant *VC = dyn_cast<Constant>(V))
959 return Insert(Folder.CreateSExtOrBitCast(VC, DestTy), Name);
960 return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
962 Value *CreateTruncOrBitCast(Value *V, Type *DestTy,
963 const Twine &Name = "") {
964 if (V->getType() == DestTy)
966 if (Constant *VC = dyn_cast<Constant>(V))
967 return Insert(Folder.CreateTruncOrBitCast(VC, DestTy), Name);
968 return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
970 Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
971 const Twine &Name = "") {
972 if (V->getType() == DestTy)
974 if (Constant *VC = dyn_cast<Constant>(V))
975 return Insert(Folder.CreateCast(Op, VC, DestTy), Name);
976 return Insert(CastInst::Create(Op, V, DestTy), Name);
978 Value *CreatePointerCast(Value *V, Type *DestTy,
979 const Twine &Name = "") {
980 if (V->getType() == DestTy)
982 if (Constant *VC = dyn_cast<Constant>(V))
983 return Insert(Folder.CreatePointerCast(VC, DestTy), Name);
984 return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
986 Value *CreateIntCast(Value *V, Type *DestTy, bool isSigned,
987 const Twine &Name = "") {
988 if (V->getType() == DestTy)
990 if (Constant *VC = dyn_cast<Constant>(V))
991 return Insert(Folder.CreateIntCast(VC, DestTy, isSigned), Name);
992 return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
995 // Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a compile time
996 // error, instead of converting the string to bool for the isSigned parameter.
997 Value *CreateIntCast(Value *, Type *, const char *); // DO NOT IMPLEMENT
999 Value *CreateFPCast(Value *V, Type *DestTy, const Twine &Name = "") {
1000 if (V->getType() == DestTy)
1002 if (Constant *VC = dyn_cast<Constant>(V))
1003 return Insert(Folder.CreateFPCast(VC, DestTy), Name);
1004 return Insert(CastInst::CreateFPCast(V, DestTy), Name);
1007 //===--------------------------------------------------------------------===//
1008 // Instruction creation methods: Compare Instructions
1009 //===--------------------------------------------------------------------===//
1011 Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1012 return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
1014 Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
1015 return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
1017 Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1018 return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
1020 Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1021 return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
1023 Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
1024 return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
1026 Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
1027 return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
1029 Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1030 return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
1032 Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1033 return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
1035 Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
1036 return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
1038 Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
1039 return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
1042 Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1043 return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name);
1045 Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1046 return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name);
1048 Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1049 return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name);
1051 Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "") {
1052 return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name);
1054 Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "") {
1055 return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name);
1057 Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "") {
1058 return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name);
1060 Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "") {
1061 return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name);
1063 Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "") {
1064 return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name);
1066 Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
1067 return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name);
1069 Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
1070 return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name);
1072 Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
1073 return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name);
1075 Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
1076 return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name);
1078 Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
1079 return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name);
1081 Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "") {
1082 return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name);
1085 Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1086 const Twine &Name = "") {
1087 if (Constant *LC = dyn_cast<Constant>(LHS))
1088 if (Constant *RC = dyn_cast<Constant>(RHS))
1089 return Insert(Folder.CreateICmp(P, LC, RC), Name);
1090 return Insert(new ICmpInst(P, LHS, RHS), Name);
1092 Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
1093 const Twine &Name = "") {
1094 if (Constant *LC = dyn_cast<Constant>(LHS))
1095 if (Constant *RC = dyn_cast<Constant>(RHS))
1096 return Insert(Folder.CreateFCmp(P, LC, RC), Name);
1097 return Insert(new FCmpInst(P, LHS, RHS), Name);
1100 //===--------------------------------------------------------------------===//
1101 // Instruction creation methods: Other Instructions
1102 //===--------------------------------------------------------------------===//
1104 PHINode *CreatePHI(Type *Ty, unsigned NumReservedValues,
1105 const Twine &Name = "") {
1106 return Insert(PHINode::Create(Ty, NumReservedValues), Name);
1109 CallInst *CreateCall(Value *Callee, const Twine &Name = "") {
1110 return Insert(CallInst::Create(Callee), Name);
1112 CallInst *CreateCall(Value *Callee, Value *Arg, const Twine &Name = "") {
1113 return Insert(CallInst::Create(Callee, Arg), Name);
1115 CallInst *CreateCall2(Value *Callee, Value *Arg1, Value *Arg2,
1116 const Twine &Name = "") {
1117 Value *Args[] = { Arg1, Arg2 };
1118 return Insert(CallInst::Create(Callee, Args), Name);
1120 CallInst *CreateCall3(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
1121 const Twine &Name = "") {
1122 Value *Args[] = { Arg1, Arg2, Arg3 };
1123 return Insert(CallInst::Create(Callee, Args), Name);
1125 CallInst *CreateCall4(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
1126 Value *Arg4, const Twine &Name = "") {
1127 Value *Args[] = { Arg1, Arg2, Arg3, Arg4 };
1128 return Insert(CallInst::Create(Callee, Args), Name);
1130 CallInst *CreateCall5(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
1131 Value *Arg4, Value *Arg5, const Twine &Name = "") {
1132 Value *Args[] = { Arg1, Arg2, Arg3, Arg4, Arg5 };
1133 return Insert(CallInst::Create(Callee, Args), Name);
1136 CallInst *CreateCall(Value *Callee, ArrayRef<Value *> Args,
1137 const Twine &Name = "") {
1138 return Insert(CallInst::Create(Callee, Args, Name));
1141 Value *CreateSelect(Value *C, Value *True, Value *False,
1142 const Twine &Name = "") {
1143 if (Constant *CC = dyn_cast<Constant>(C))
1144 if (Constant *TC = dyn_cast<Constant>(True))
1145 if (Constant *FC = dyn_cast<Constant>(False))
1146 return Insert(Folder.CreateSelect(CC, TC, FC), Name);
1147 return Insert(SelectInst::Create(C, True, False), Name);
1150 VAArgInst *CreateVAArg(Value *List, Type *Ty, const Twine &Name = "") {
1151 return Insert(new VAArgInst(List, Ty), Name);
1154 Value *CreateExtractElement(Value *Vec, Value *Idx,
1155 const Twine &Name = "") {
1156 if (Constant *VC = dyn_cast<Constant>(Vec))
1157 if (Constant *IC = dyn_cast<Constant>(Idx))
1158 return Insert(Folder.CreateExtractElement(VC, IC), Name);
1159 return Insert(ExtractElementInst::Create(Vec, Idx), Name);
1162 Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
1163 const Twine &Name = "") {
1164 if (Constant *VC = dyn_cast<Constant>(Vec))
1165 if (Constant *NC = dyn_cast<Constant>(NewElt))
1166 if (Constant *IC = dyn_cast<Constant>(Idx))
1167 return Insert(Folder.CreateInsertElement(VC, NC, IC), Name);
1168 return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
1171 Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
1172 const Twine &Name = "") {
1173 if (Constant *V1C = dyn_cast<Constant>(V1))
1174 if (Constant *V2C = dyn_cast<Constant>(V2))
1175 if (Constant *MC = dyn_cast<Constant>(Mask))
1176 return Insert(Folder.CreateShuffleVector(V1C, V2C, MC), Name);
1177 return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
1180 Value *CreateExtractValue(Value *Agg,
1181 ArrayRef<unsigned> Idxs,
1182 const Twine &Name = "") {
1183 if (Constant *AggC = dyn_cast<Constant>(Agg))
1184 return Insert(Folder.CreateExtractValue(AggC, Idxs), Name);
1185 return Insert(ExtractValueInst::Create(Agg, Idxs), Name);
1188 Value *CreateInsertValue(Value *Agg, Value *Val,
1189 ArrayRef<unsigned> Idxs,
1190 const Twine &Name = "") {
1191 if (Constant *AggC = dyn_cast<Constant>(Agg))
1192 if (Constant *ValC = dyn_cast<Constant>(Val))
1193 return Insert(Folder.CreateInsertValue(AggC, ValC, Idxs), Name);
1194 return Insert(InsertValueInst::Create(Agg, Val, Idxs), Name);
1197 //===--------------------------------------------------------------------===//
1198 // Utility creation methods
1199 //===--------------------------------------------------------------------===//
1201 /// CreateIsNull - Return an i1 value testing if \arg Arg is null.
1202 Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
1203 return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
1207 /// CreateIsNotNull - Return an i1 value testing if \arg Arg is not null.
1208 Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
1209 return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
1213 /// CreatePtrDiff - Return the i64 difference between two pointer values,
1214 /// dividing out the size of the pointed-to objects. This is intended to
1215 /// implement C-style pointer subtraction. As such, the pointers must be
1216 /// appropriately aligned for their element types and pointing into the
1218 Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
1219 assert(LHS->getType() == RHS->getType() &&
1220 "Pointer subtraction operand types must match!");
1221 PointerType *ArgType = cast<PointerType>(LHS->getType());
1222 Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
1223 Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
1224 Value *Difference = CreateSub(LHS_int, RHS_int);
1225 return CreateExactSDiv(Difference,
1226 ConstantExpr::getSizeOf(ArgType->getElementType()),