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/Twine.h"
21 #include "llvm/Support/ConstantFolder.h"
26 /// IRBuilderDefaultInserter - This provides the default implementation of the
27 /// IRBuilder 'InsertHelper' method that is called whenever an instruction is
28 /// created by IRBuilder and needs to be inserted. By default, this inserts the
29 /// instruction at the insertion point.
30 template <bool preserveNames = true>
31 class IRBuilderDefaultInserter {
33 void InsertHelper(Instruction *I, const Twine &Name,
34 BasicBlock *BB, BasicBlock::iterator InsertPt) const {
35 if (BB) BB->getInstList().insert(InsertPt, I);
41 /// IRBuilderBase - Common base class shared among various IRBuilders.
43 DebugLoc CurDbgLocation;
46 BasicBlock::iterator InsertPt;
50 IRBuilderBase(LLVMContext &context)
52 ClearInsertionPoint();
55 //===--------------------------------------------------------------------===//
56 // Builder configuration methods
57 //===--------------------------------------------------------------------===//
59 /// ClearInsertionPoint - Clear the insertion point: created instructions will
60 /// not be inserted into a block.
61 void ClearInsertionPoint() {
65 BasicBlock *GetInsertBlock() const { return BB; }
66 BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
67 LLVMContext &getContext() const { return Context; }
69 /// SetInsertPoint - This specifies that created instructions should be
70 /// appended to the end of the specified block.
71 void SetInsertPoint(BasicBlock *TheBB) {
76 /// SetInsertPoint - This specifies that created instructions should be
77 /// inserted at the specified point.
78 void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
83 /// SetCurrentDebugLocation - Set location information used by debugging
85 void SetCurrentDebugLocation(const DebugLoc &L) {
89 /// getCurrentDebugLocation - Get location information used by debugging
91 const DebugLoc &getCurrentDebugLocation() const { return CurDbgLocation; }
93 /// SetInstDebugLocation - If this builder has a current debug location, set
94 /// it on the specified instruction.
95 void SetInstDebugLocation(Instruction *I) const {
96 if (!CurDbgLocation.isUnknown())
97 I->setDebugLoc(CurDbgLocation);
100 //===--------------------------------------------------------------------===//
101 // Miscellaneous creation methods.
102 //===--------------------------------------------------------------------===//
104 /// CreateGlobalString - Make a new global variable with an initializer that
105 /// has array of i8 type filled in with the nul terminated string value
106 /// specified. If Name is specified, it is the name of the global variable
108 Value *CreateGlobalString(const char *Str = "", const Twine &Name = "");
110 //===--------------------------------------------------------------------===//
111 // Type creation methods
112 //===--------------------------------------------------------------------===//
114 /// getInt1Ty - Fetch the type representing a single bit
115 const Type *getInt1Ty() {
116 return Type::getInt1Ty(Context);
119 /// getInt8Ty - Fetch the type representing an 8-bit integer.
120 const Type *getInt8Ty() {
121 return Type::getInt8Ty(Context);
124 /// getInt16Ty - Fetch the type representing a 16-bit integer.
125 const Type *getInt16Ty() {
126 return Type::getInt16Ty(Context);
129 /// getInt32Ty - Fetch the type resepresenting a 32-bit integer.
130 const Type *getInt32Ty() {
131 return Type::getInt32Ty(Context);
134 /// getInt64Ty - Fetch the type representing a 64-bit integer.
135 const Type *getInt64Ty() {
136 return Type::getInt64Ty(Context);
139 /// getFloatTy - Fetch the type representing a 32-bit floating point value.
140 const Type *getFloatTy() {
141 return Type::getFloatTy(Context);
144 /// getDoubleTy - Fetch the type representing a 64-bit floating point value.
145 const Type *getDoubleTy() {
146 return Type::getDoubleTy(Context);
149 /// getVoidTy - Fetch the type representing void.
150 const Type *getVoidTy() {
151 return Type::getVoidTy(Context);
154 const Type *getInt8PtrTy() {
155 return Type::getInt8PtrTy(Context);
158 /// getCurrentFunctionReturnType - Get the return type of the current function
159 /// that we're emitting into.
160 const Type *getCurrentFunctionReturnType() const;
163 /// IRBuilder - This provides a uniform API for creating instructions and
164 /// inserting them into a basic block: either at the end of a BasicBlock, or
165 /// at a specific iterator location in a block.
167 /// Note that the builder does not expose the full generality of LLVM
168 /// instructions. For access to extra instruction properties, use the mutators
169 /// (e.g. setVolatile) on the instructions after they have been created.
170 /// The first template argument handles whether or not to preserve names in the
171 /// final instruction output. This defaults to on. The second template argument
172 /// specifies a class to use for creating constants. This defaults to creating
173 /// minimally folded constants. The fourth template argument allows clients to
174 /// specify custom insertion hooks that are called on every newly created
176 template<bool preserveNames = true, typename T = ConstantFolder,
177 typename Inserter = IRBuilderDefaultInserter<preserveNames> >
178 class IRBuilder : public IRBuilderBase, public Inserter {
181 IRBuilder(LLVMContext &C, const T &F, const Inserter &I = Inserter())
182 : IRBuilderBase(C), Inserter(I), Folder(F) {
185 explicit IRBuilder(LLVMContext &C) : IRBuilderBase(C), Folder(C) {
188 explicit IRBuilder(BasicBlock *TheBB, const T &F)
189 : IRBuilderBase(TheBB->getContext()), Folder(F) {
190 SetInsertPoint(TheBB);
193 explicit IRBuilder(BasicBlock *TheBB)
194 : IRBuilderBase(TheBB->getContext()), Folder(Context) {
195 SetInsertPoint(TheBB);
198 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F)
199 : IRBuilderBase(TheBB->getContext()), Folder(F) {
200 SetInsertPoint(TheBB, IP);
203 IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP)
204 : IRBuilderBase(TheBB->getContext()), Folder(Context) {
205 SetInsertPoint(TheBB, IP);
208 /// getFolder - Get the constant folder being used.
209 const T &getFolder() { return Folder; }
211 /// isNamePreserving - Return true if this builder is configured to actually
212 /// add the requested names to IR created through it.
213 bool isNamePreserving() const { return preserveNames; }
215 /// Insert - Insert and return the specified instruction.
216 template<typename InstTy>
217 InstTy *Insert(InstTy *I, const Twine &Name = "") const {
218 this->InsertHelper(I, Name, BB, InsertPt);
219 if (!getCurrentDebugLocation().isUnknown())
220 this->SetInstDebugLocation(I);
224 //===--------------------------------------------------------------------===//
225 // Instruction creation methods: Terminators
226 //===--------------------------------------------------------------------===//
228 /// CreateRetVoid - Create a 'ret void' instruction.
229 ReturnInst *CreateRetVoid() {
230 return Insert(ReturnInst::Create(Context));
234 /// CreateRet - Create a 'ret <val>' instruction.
236 ReturnInst *CreateRet(Value *V) {
237 return Insert(ReturnInst::Create(Context, V));
240 /// CreateAggregateRet - Create a sequence of N insertvalue instructions,
241 /// with one Value from the retVals array each, that build a aggregate
242 /// return value one value at a time, and a ret instruction to return
243 /// the resulting aggregate value. This is a convenience function for
244 /// code that uses aggregate return values as a vehicle for having
245 /// multiple return values.
247 ReturnInst *CreateAggregateRet(Value *const *retVals, unsigned N) {
248 Value *V = UndefValue::get(getCurrentFunctionReturnType());
249 for (unsigned i = 0; i != N; ++i)
250 V = CreateInsertValue(V, retVals[i], i, "mrv");
251 return Insert(ReturnInst::Create(Context, V));
254 /// CreateBr - Create an unconditional 'br label X' instruction.
255 BranchInst *CreateBr(BasicBlock *Dest) {
256 return Insert(BranchInst::Create(Dest));
259 /// CreateCondBr - Create a conditional 'br Cond, TrueDest, FalseDest'
261 BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False) {
262 return Insert(BranchInst::Create(True, False, Cond));
265 /// CreateSwitch - Create a switch instruction with the specified value,
266 /// default dest, and with a hint for the number of cases that will be added
267 /// (for efficient allocation).
268 SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10) {
269 return Insert(SwitchInst::Create(V, Dest, NumCases));
272 /// CreateIndirectBr - Create an indirect branch instruction with the
273 /// specified address operand, with an optional hint for the number of
274 /// destinations that will be added (for efficient allocation).
275 IndirectBrInst *CreateIndirectBr(Value *Addr, unsigned NumDests = 10) {
276 return Insert(IndirectBrInst::Create(Addr, NumDests));
279 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
280 BasicBlock *UnwindDest, const Twine &Name = "") {
281 Value *Args[] = { 0 };
282 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
285 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
286 BasicBlock *UnwindDest, Value *Arg1,
287 const Twine &Name = "") {
288 Value *Args[] = { Arg1 };
289 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
292 InvokeInst *CreateInvoke3(Value *Callee, BasicBlock *NormalDest,
293 BasicBlock *UnwindDest, Value *Arg1,
294 Value *Arg2, Value *Arg3,
295 const Twine &Name = "") {
296 Value *Args[] = { Arg1, Arg2, Arg3 };
297 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest, Args,
300 /// CreateInvoke - Create an invoke instruction.
301 template<typename InputIterator>
302 InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
303 BasicBlock *UnwindDest, InputIterator ArgBegin,
304 InputIterator ArgEnd, const Twine &Name = "") {
305 return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest,
306 ArgBegin, ArgEnd), Name);
309 UnwindInst *CreateUnwind() {
310 return Insert(new UnwindInst(Context));
313 UnreachableInst *CreateUnreachable() {
314 return Insert(new UnreachableInst(Context));
317 //===--------------------------------------------------------------------===//
318 // Instruction creation methods: Binary Operators
319 //===--------------------------------------------------------------------===//
321 Value *CreateAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
322 if (Constant *LC = dyn_cast<Constant>(LHS))
323 if (Constant *RC = dyn_cast<Constant>(RHS))
324 return Folder.CreateAdd(LC, RC);
325 return Insert(BinaryOperator::CreateAdd(LHS, RHS), Name);
327 Value *CreateNSWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
328 if (Constant *LC = dyn_cast<Constant>(LHS))
329 if (Constant *RC = dyn_cast<Constant>(RHS))
330 return Folder.CreateNSWAdd(LC, RC);
331 return Insert(BinaryOperator::CreateNSWAdd(LHS, RHS), Name);
333 Value *CreateNUWAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
334 if (Constant *LC = dyn_cast<Constant>(LHS))
335 if (Constant *RC = dyn_cast<Constant>(RHS))
336 return Folder.CreateNUWAdd(LC, RC);
337 return Insert(BinaryOperator::CreateNUWAdd(LHS, RHS), Name);
339 Value *CreateFAdd(Value *LHS, Value *RHS, const Twine &Name = "") {
340 if (Constant *LC = dyn_cast<Constant>(LHS))
341 if (Constant *RC = dyn_cast<Constant>(RHS))
342 return Folder.CreateFAdd(LC, RC);
343 return Insert(BinaryOperator::CreateFAdd(LHS, RHS), Name);
345 Value *CreateSub(Value *LHS, Value *RHS, const Twine &Name = "") {
346 if (Constant *LC = dyn_cast<Constant>(LHS))
347 if (Constant *RC = dyn_cast<Constant>(RHS))
348 return Folder.CreateSub(LC, RC);
349 return Insert(BinaryOperator::CreateSub(LHS, RHS), Name);
351 Value *CreateNSWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
352 if (Constant *LC = dyn_cast<Constant>(LHS))
353 if (Constant *RC = dyn_cast<Constant>(RHS))
354 return Folder.CreateNSWSub(LC, RC);
355 return Insert(BinaryOperator::CreateNSWSub(LHS, RHS), Name);
357 Value *CreateNUWSub(Value *LHS, Value *RHS, const Twine &Name = "") {
358 if (Constant *LC = dyn_cast<Constant>(LHS))
359 if (Constant *RC = dyn_cast<Constant>(RHS))
360 return Folder.CreateNUWSub(LC, RC);
361 return Insert(BinaryOperator::CreateNUWSub(LHS, RHS), Name);
363 Value *CreateFSub(Value *LHS, Value *RHS, const Twine &Name = "") {
364 if (Constant *LC = dyn_cast<Constant>(LHS))
365 if (Constant *RC = dyn_cast<Constant>(RHS))
366 return Folder.CreateFSub(LC, RC);
367 return Insert(BinaryOperator::CreateFSub(LHS, RHS), Name);
369 Value *CreateMul(Value *LHS, Value *RHS, const Twine &Name = "") {
370 if (Constant *LC = dyn_cast<Constant>(LHS))
371 if (Constant *RC = dyn_cast<Constant>(RHS))
372 return Folder.CreateMul(LC, RC);
373 return Insert(BinaryOperator::CreateMul(LHS, RHS), Name);
375 Value *CreateNSWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
376 if (Constant *LC = dyn_cast<Constant>(LHS))
377 if (Constant *RC = dyn_cast<Constant>(RHS))
378 return Folder.CreateNSWMul(LC, RC);
379 return Insert(BinaryOperator::CreateNSWMul(LHS, RHS), Name);
381 Value *CreateNUWMul(Value *LHS, Value *RHS, const Twine &Name = "") {
382 if (Constant *LC = dyn_cast<Constant>(LHS))
383 if (Constant *RC = dyn_cast<Constant>(RHS))
384 return Folder.CreateNUWMul(LC, RC);
385 return Insert(BinaryOperator::CreateNUWMul(LHS, RHS), Name);
387 Value *CreateFMul(Value *LHS, Value *RHS, const Twine &Name = "") {
388 if (Constant *LC = dyn_cast<Constant>(LHS))
389 if (Constant *RC = dyn_cast<Constant>(RHS))
390 return Folder.CreateFMul(LC, RC);
391 return Insert(BinaryOperator::CreateFMul(LHS, RHS), Name);
393 Value *CreateUDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
394 if (Constant *LC = dyn_cast<Constant>(LHS))
395 if (Constant *RC = dyn_cast<Constant>(RHS))
396 return Folder.CreateUDiv(LC, RC);
397 return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
399 Value *CreateSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
400 if (Constant *LC = dyn_cast<Constant>(LHS))
401 if (Constant *RC = dyn_cast<Constant>(RHS))
402 return Folder.CreateSDiv(LC, RC);
403 return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
405 Value *CreateExactSDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
406 if (Constant *LC = dyn_cast<Constant>(LHS))
407 if (Constant *RC = dyn_cast<Constant>(RHS))
408 return Folder.CreateExactSDiv(LC, RC);
409 return Insert(BinaryOperator::CreateExactSDiv(LHS, RHS), Name);
411 Value *CreateFDiv(Value *LHS, Value *RHS, const Twine &Name = "") {
412 if (Constant *LC = dyn_cast<Constant>(LHS))
413 if (Constant *RC = dyn_cast<Constant>(RHS))
414 return Folder.CreateFDiv(LC, RC);
415 return Insert(BinaryOperator::CreateFDiv(LHS, RHS), Name);
417 Value *CreateURem(Value *LHS, Value *RHS, const Twine &Name = "") {
418 if (Constant *LC = dyn_cast<Constant>(LHS))
419 if (Constant *RC = dyn_cast<Constant>(RHS))
420 return Folder.CreateURem(LC, RC);
421 return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
423 Value *CreateSRem(Value *LHS, Value *RHS, const Twine &Name = "") {
424 if (Constant *LC = dyn_cast<Constant>(LHS))
425 if (Constant *RC = dyn_cast<Constant>(RHS))
426 return Folder.CreateSRem(LC, RC);
427 return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
429 Value *CreateFRem(Value *LHS, Value *RHS, const Twine &Name = "") {
430 if (Constant *LC = dyn_cast<Constant>(LHS))
431 if (Constant *RC = dyn_cast<Constant>(RHS))
432 return Folder.CreateFRem(LC, RC);
433 return Insert(BinaryOperator::CreateFRem(LHS, RHS), Name);
436 Value *CreateShl(Value *LHS, Value *RHS, const Twine &Name = "") {
437 if (Constant *LC = dyn_cast<Constant>(LHS))
438 if (Constant *RC = dyn_cast<Constant>(RHS))
439 return Folder.CreateShl(LC, RC);
440 return Insert(BinaryOperator::CreateShl(LHS, RHS), Name);
442 Value *CreateShl(Value *LHS, const APInt &RHS, const Twine &Name = "") {
443 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
444 if (Constant *LC = dyn_cast<Constant>(LHS))
445 return Folder.CreateShl(LC, RHSC);
446 return Insert(BinaryOperator::CreateShl(LHS, RHSC), Name);
448 Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "") {
449 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
450 if (Constant *LC = dyn_cast<Constant>(LHS))
451 return Folder.CreateShl(LC, RHSC);
452 return Insert(BinaryOperator::CreateShl(LHS, RHSC), Name);
455 Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "") {
456 if (Constant *LC = dyn_cast<Constant>(LHS))
457 if (Constant *RC = dyn_cast<Constant>(RHS))
458 return Folder.CreateLShr(LC, RC);
459 return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
461 Value *CreateLShr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
462 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
463 if (Constant *LC = dyn_cast<Constant>(LHS))
464 return Folder.CreateLShr(LC, RHSC);
465 return Insert(BinaryOperator::CreateLShr(LHS, RHSC), Name);
467 Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
468 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
469 if (Constant *LC = dyn_cast<Constant>(LHS))
470 return Folder.CreateLShr(LC, RHSC);
471 return Insert(BinaryOperator::CreateLShr(LHS, RHSC), Name);
474 Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "") {
475 if (Constant *LC = dyn_cast<Constant>(LHS))
476 if (Constant *RC = dyn_cast<Constant>(RHS))
477 return Folder.CreateAShr(LC, RC);
478 return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
480 Value *CreateAShr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
481 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
482 if (Constant *LC = dyn_cast<Constant>(LHS))
483 return Folder.CreateAShr(LC, RHSC);
484 return Insert(BinaryOperator::CreateAShr(LHS, RHSC), Name);
486 Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
487 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
488 if (Constant *LC = dyn_cast<Constant>(LHS))
489 return Folder.CreateAShr(LC, RHSC);
490 return Insert(BinaryOperator::CreateAShr(LHS, RHSC), Name);
493 Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
494 if (Constant *RC = dyn_cast<Constant>(RHS)) {
495 if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())
496 return LHS; // LHS & -1 -> LHS
497 if (Constant *LC = dyn_cast<Constant>(LHS))
498 return Folder.CreateAnd(LC, RC);
500 return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
502 Value *CreateAnd(Value *LHS, const APInt &RHS, const Twine &Name = "") {
503 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
504 if (Constant *LC = dyn_cast<Constant>(LHS))
505 return Folder.CreateAnd(LC, RHSC);
506 return Insert(BinaryOperator::CreateAnd(LHS, RHSC), Name);
508 Value *CreateAnd(Value *LHS, uint64_t RHS, const Twine &Name = "") {
509 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
510 if (Constant *LC = dyn_cast<Constant>(LHS))
511 return Folder.CreateAnd(LC, RHSC);
512 return Insert(BinaryOperator::CreateAnd(LHS, RHSC), Name);
515 Value *CreateOr(Value *LHS, Value *RHS, const Twine &Name = "") {
516 if (Constant *RC = dyn_cast<Constant>(RHS)) {
517 if (RC->isNullValue())
518 return LHS; // LHS | 0 -> LHS
519 if (Constant *LC = dyn_cast<Constant>(LHS))
520 return Folder.CreateOr(LC, RC);
522 return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
524 Value *CreateOr(Value *LHS, const APInt &RHS, const Twine &Name = "") {
525 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
526 if (Constant *LC = dyn_cast<Constant>(LHS))
527 return Folder.CreateOr(LC, RHSC);
528 return Insert(BinaryOperator::CreateOr(LHS, RHSC), Name);
530 Value *CreateOr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
531 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
532 if (Constant *LC = dyn_cast<Constant>(LHS))
533 return Folder.CreateOr(LC, RHSC);
534 return Insert(BinaryOperator::CreateOr(LHS, RHSC), Name);
537 Value *CreateXor(Value *LHS, Value *RHS, const Twine &Name = "") {
538 if (Constant *LC = dyn_cast<Constant>(LHS))
539 if (Constant *RC = dyn_cast<Constant>(RHS))
540 return Folder.CreateXor(LC, RC);
541 return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
543 Value *CreateXor(Value *LHS, const APInt &RHS, const Twine &Name = "") {
544 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
545 if (Constant *LC = dyn_cast<Constant>(LHS))
546 return Folder.CreateXor(LC, RHSC);
547 return Insert(BinaryOperator::CreateXor(LHS, RHSC), Name);
549 Value *CreateXor(Value *LHS, uint64_t RHS, const Twine &Name = "") {
550 Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
551 if (Constant *LC = dyn_cast<Constant>(LHS))
552 return Folder.CreateXor(LC, RHSC);
553 return Insert(BinaryOperator::CreateXor(LHS, RHSC), Name);
556 Value *CreateBinOp(Instruction::BinaryOps Opc,
557 Value *LHS, Value *RHS, const Twine &Name = "") {
558 if (Constant *LC = dyn_cast<Constant>(LHS))
559 if (Constant *RC = dyn_cast<Constant>(RHS))
560 return Folder.CreateBinOp(Opc, LC, RC);
561 return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
564 Value *CreateNeg(Value *V, const Twine &Name = "") {
565 if (Constant *VC = dyn_cast<Constant>(V))
566 return Folder.CreateNeg(VC);
567 return Insert(BinaryOperator::CreateNeg(V), Name);
569 Value *CreateNSWNeg(Value *V, const Twine &Name = "") {
570 if (Constant *VC = dyn_cast<Constant>(V))
571 return Folder.CreateNSWNeg(VC);
572 return Insert(BinaryOperator::CreateNSWNeg(V), Name);
574 Value *CreateNUWNeg(Value *V, const Twine &Name = "") {
575 if (Constant *VC = dyn_cast<Constant>(V))
576 return Folder.CreateNUWNeg(VC);
577 return Insert(BinaryOperator::CreateNUWNeg(V), Name);
579 Value *CreateFNeg(Value *V, const Twine &Name = "") {
580 if (Constant *VC = dyn_cast<Constant>(V))
581 return Folder.CreateFNeg(VC);
582 return Insert(BinaryOperator::CreateFNeg(V), Name);
584 Value *CreateNot(Value *V, const Twine &Name = "") {
585 if (Constant *VC = dyn_cast<Constant>(V))
586 return Folder.CreateNot(VC);
587 return Insert(BinaryOperator::CreateNot(V), Name);
590 //===--------------------------------------------------------------------===//
591 // Instruction creation methods: Memory Instructions
592 //===--------------------------------------------------------------------===//
594 AllocaInst *CreateAlloca(const Type *Ty, Value *ArraySize = 0,
595 const Twine &Name = "") {
596 return Insert(new AllocaInst(Ty, ArraySize), Name);
598 // Provided to resolve 'CreateLoad(Ptr, "...")' correctly, instead of
599 // converting the string to 'bool' for the isVolatile parameter.
600 LoadInst *CreateLoad(Value *Ptr, const char *Name) {
601 return Insert(new LoadInst(Ptr), Name);
603 LoadInst *CreateLoad(Value *Ptr, const Twine &Name = "") {
604 return Insert(new LoadInst(Ptr), Name);
606 LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const Twine &Name = "") {
607 return Insert(new LoadInst(Ptr, 0, isVolatile), Name);
609 StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
610 return Insert(new StoreInst(Val, Ptr, isVolatile));
612 template<typename InputIterator>
613 Value *CreateGEP(Value *Ptr, InputIterator IdxBegin, InputIterator IdxEnd,
614 const Twine &Name = "") {
615 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
616 // Every index must be constant.
618 for (i = IdxBegin; i < IdxEnd; ++i)
619 if (!isa<Constant>(*i))
622 return Folder.CreateGetElementPtr(PC, &IdxBegin[0], IdxEnd - IdxBegin);
624 return Insert(GetElementPtrInst::Create(Ptr, IdxBegin, IdxEnd), Name);
626 template<typename InputIterator>
627 Value *CreateInBoundsGEP(Value *Ptr, InputIterator IdxBegin, InputIterator IdxEnd,
628 const Twine &Name = "") {
629 if (Constant *PC = dyn_cast<Constant>(Ptr)) {
630 // Every index must be constant.
632 for (i = IdxBegin; i < IdxEnd; ++i)
633 if (!isa<Constant>(*i))
636 return Folder.CreateInBoundsGetElementPtr(PC,
640 return Insert(GetElementPtrInst::CreateInBounds(Ptr, IdxBegin, IdxEnd),
643 Value *CreateGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
644 if (Constant *PC = dyn_cast<Constant>(Ptr))
645 if (Constant *IC = dyn_cast<Constant>(Idx))
646 return Folder.CreateGetElementPtr(PC, &IC, 1);
647 return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
649 Value *CreateInBoundsGEP(Value *Ptr, Value *Idx, const Twine &Name = "") {
650 if (Constant *PC = dyn_cast<Constant>(Ptr))
651 if (Constant *IC = dyn_cast<Constant>(Idx))
652 return Folder.CreateInBoundsGetElementPtr(PC, &IC, 1);
653 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
655 Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const Twine &Name = "") {
656 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
658 if (Constant *PC = dyn_cast<Constant>(Ptr))
659 return Folder.CreateGetElementPtr(PC, &Idx, 1);
661 return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);
663 Value *CreateConstInBoundsGEP1_32(Value *Ptr, unsigned Idx0,
664 const Twine &Name = "") {
665 Value *Idx = ConstantInt::get(Type::getInt32Ty(Context), Idx0);
667 if (Constant *PC = dyn_cast<Constant>(Ptr))
668 return Folder.CreateInBoundsGetElementPtr(PC, &Idx, 1);
670 return Insert(GetElementPtrInst::CreateInBounds(Ptr, &Idx, &Idx+1), Name);
672 Value *CreateConstGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
673 const Twine &Name = "") {
675 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
676 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
679 if (Constant *PC = dyn_cast<Constant>(Ptr))
680 return Folder.CreateGetElementPtr(PC, Idxs, 2);
682 return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
684 Value *CreateConstInBoundsGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
685 const Twine &Name = "") {
687 ConstantInt::get(Type::getInt32Ty(Context), Idx0),
688 ConstantInt::get(Type::getInt32Ty(Context), Idx1)
691 if (Constant *PC = dyn_cast<Constant>(Ptr))
692 return Folder.CreateInBoundsGetElementPtr(PC, Idxs, 2);
694 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
696 Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const Twine &Name = "") {
697 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
699 if (Constant *PC = dyn_cast<Constant>(Ptr))
700 return Folder.CreateGetElementPtr(PC, &Idx, 1);
702 return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);
704 Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
705 const Twine &Name = "") {
706 Value *Idx = ConstantInt::get(Type::getInt64Ty(Context), Idx0);
708 if (Constant *PC = dyn_cast<Constant>(Ptr))
709 return Folder.CreateInBoundsGetElementPtr(PC, &Idx, 1);
711 return Insert(GetElementPtrInst::CreateInBounds(Ptr, &Idx, &Idx+1), Name);
713 Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
714 const Twine &Name = "") {
716 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
717 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
720 if (Constant *PC = dyn_cast<Constant>(Ptr))
721 return Folder.CreateGetElementPtr(PC, Idxs, 2);
723 return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
725 Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
726 const Twine &Name = "") {
728 ConstantInt::get(Type::getInt64Ty(Context), Idx0),
729 ConstantInt::get(Type::getInt64Ty(Context), Idx1)
732 if (Constant *PC = dyn_cast<Constant>(Ptr))
733 return Folder.CreateInBoundsGetElementPtr(PC, Idxs, 2);
735 return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
737 Value *CreateStructGEP(Value *Ptr, unsigned Idx, const Twine &Name = "") {
738 return CreateConstInBoundsGEP2_32(Ptr, 0, Idx, Name);
741 /// CreateGlobalStringPtr - Same as CreateGlobalString, but return a pointer
742 /// with "i8*" type instead of a pointer to array of i8.
743 Value *CreateGlobalStringPtr(const char *Str = "", const Twine &Name = "") {
744 Value *gv = CreateGlobalString(Str, Name);
745 Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
746 Value *Args[] = { zero, zero };
747 return CreateInBoundsGEP(gv, Args, Args+2, Name);
750 //===--------------------------------------------------------------------===//
751 // Instruction creation methods: Cast/Conversion Operators
752 //===--------------------------------------------------------------------===//
754 Value *CreateTrunc(Value *V, const Type *DestTy, const Twine &Name = "") {
755 return CreateCast(Instruction::Trunc, V, DestTy, Name);
757 Value *CreateZExt(Value *V, const Type *DestTy, const Twine &Name = "") {
758 return CreateCast(Instruction::ZExt, V, DestTy, Name);
760 Value *CreateSExt(Value *V, const Type *DestTy, const Twine &Name = "") {
761 return CreateCast(Instruction::SExt, V, DestTy, Name);
763 Value *CreateFPToUI(Value *V, const Type *DestTy, const Twine &Name = ""){
764 return CreateCast(Instruction::FPToUI, V, DestTy, Name);
766 Value *CreateFPToSI(Value *V, const Type *DestTy, const Twine &Name = ""){
767 return CreateCast(Instruction::FPToSI, V, DestTy, Name);
769 Value *CreateUIToFP(Value *V, const Type *DestTy, const Twine &Name = ""){
770 return CreateCast(Instruction::UIToFP, V, DestTy, Name);
772 Value *CreateSIToFP(Value *V, const Type *DestTy, const Twine &Name = ""){
773 return CreateCast(Instruction::SIToFP, V, DestTy, Name);
775 Value *CreateFPTrunc(Value *V, const Type *DestTy,
776 const Twine &Name = "") {
777 return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
779 Value *CreateFPExt(Value *V, const Type *DestTy, const Twine &Name = "") {
780 return CreateCast(Instruction::FPExt, V, DestTy, Name);
782 Value *CreatePtrToInt(Value *V, const Type *DestTy,
783 const Twine &Name = "") {
784 return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
786 Value *CreateIntToPtr(Value *V, const Type *DestTy,
787 const Twine &Name = "") {
788 return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
790 Value *CreateBitCast(Value *V, const Type *DestTy,
791 const Twine &Name = "") {
792 return CreateCast(Instruction::BitCast, V, DestTy, Name);
794 Value *CreateZExtOrBitCast(Value *V, const Type *DestTy,
795 const Twine &Name = "") {
796 if (V->getType() == DestTy)
798 if (Constant *VC = dyn_cast<Constant>(V))
799 return Folder.CreateZExtOrBitCast(VC, DestTy);
800 return Insert(CastInst::CreateZExtOrBitCast(V, DestTy), Name);
802 Value *CreateSExtOrBitCast(Value *V, const Type *DestTy,
803 const Twine &Name = "") {
804 if (V->getType() == DestTy)
806 if (Constant *VC = dyn_cast<Constant>(V))
807 return Folder.CreateSExtOrBitCast(VC, DestTy);
808 return Insert(CastInst::CreateSExtOrBitCast(V, DestTy), Name);
810 Value *CreateTruncOrBitCast(Value *V, const Type *DestTy,
811 const Twine &Name = "") {
812 if (V->getType() == DestTy)
814 if (Constant *VC = dyn_cast<Constant>(V))
815 return Folder.CreateTruncOrBitCast(VC, DestTy);
816 return Insert(CastInst::CreateTruncOrBitCast(V, DestTy), Name);
818 Value *CreateCast(Instruction::CastOps Op, Value *V, const Type *DestTy,
819 const Twine &Name = "") {
820 if (V->getType() == DestTy)
822 if (Constant *VC = dyn_cast<Constant>(V))
823 return Folder.CreateCast(Op, VC, DestTy);
824 return Insert(CastInst::Create(Op, V, DestTy), Name);
826 Value *CreatePointerCast(Value *V, const Type *DestTy,
827 const Twine &Name = "") {
828 if (V->getType() == DestTy)
830 if (Constant *VC = dyn_cast<Constant>(V))
831 return Folder.CreatePointerCast(VC, DestTy);
832 return Insert(CastInst::CreatePointerCast(V, DestTy), Name);
834 Value *CreateIntCast(Value *V, const Type *DestTy, bool isSigned,
835 const Twine &Name = "") {
836 if (V->getType() == DestTy)
838 if (Constant *VC = dyn_cast<Constant>(V))
839 return Folder.CreateIntCast(VC, DestTy, isSigned);
840 return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
843 // Provided to resolve 'CreateIntCast(Ptr, Ptr, "...")', giving a compile time
844 // error, instead of converting the string to bool for the isSigned parameter.
845 Value *CreateIntCast(Value *, const Type *, const char *); // DO NOT IMPLEMENT
847 Value *CreateFPCast(Value *V, const Type *DestTy, const Twine &Name = "") {
848 if (V->getType() == DestTy)
850 if (Constant *VC = dyn_cast<Constant>(V))
851 return Folder.CreateFPCast(VC, DestTy);
852 return Insert(CastInst::CreateFPCast(V, DestTy), Name);
855 //===--------------------------------------------------------------------===//
856 // Instruction creation methods: Compare Instructions
857 //===--------------------------------------------------------------------===//
859 Value *CreateICmpEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
860 return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
862 Value *CreateICmpNE(Value *LHS, Value *RHS, const Twine &Name = "") {
863 return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
865 Value *CreateICmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
866 return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
868 Value *CreateICmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
869 return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
871 Value *CreateICmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
872 return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
874 Value *CreateICmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
875 return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
877 Value *CreateICmpSGT(Value *LHS, Value *RHS, const Twine &Name = "") {
878 return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
880 Value *CreateICmpSGE(Value *LHS, Value *RHS, const Twine &Name = "") {
881 return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
883 Value *CreateICmpSLT(Value *LHS, Value *RHS, const Twine &Name = "") {
884 return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
886 Value *CreateICmpSLE(Value *LHS, Value *RHS, const Twine &Name = "") {
887 return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
890 Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
891 return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name);
893 Value *CreateFCmpOGT(Value *LHS, Value *RHS, const Twine &Name = "") {
894 return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name);
896 Value *CreateFCmpOGE(Value *LHS, Value *RHS, const Twine &Name = "") {
897 return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name);
899 Value *CreateFCmpOLT(Value *LHS, Value *RHS, const Twine &Name = "") {
900 return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name);
902 Value *CreateFCmpOLE(Value *LHS, Value *RHS, const Twine &Name = "") {
903 return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name);
905 Value *CreateFCmpONE(Value *LHS, Value *RHS, const Twine &Name = "") {
906 return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name);
908 Value *CreateFCmpORD(Value *LHS, Value *RHS, const Twine &Name = "") {
909 return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name);
911 Value *CreateFCmpUNO(Value *LHS, Value *RHS, const Twine &Name = "") {
912 return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name);
914 Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const Twine &Name = "") {
915 return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name);
917 Value *CreateFCmpUGT(Value *LHS, Value *RHS, const Twine &Name = "") {
918 return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name);
920 Value *CreateFCmpUGE(Value *LHS, Value *RHS, const Twine &Name = "") {
921 return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name);
923 Value *CreateFCmpULT(Value *LHS, Value *RHS, const Twine &Name = "") {
924 return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name);
926 Value *CreateFCmpULE(Value *LHS, Value *RHS, const Twine &Name = "") {
927 return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name);
929 Value *CreateFCmpUNE(Value *LHS, Value *RHS, const Twine &Name = "") {
930 return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name);
933 Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
934 const Twine &Name = "") {
935 if (Constant *LC = dyn_cast<Constant>(LHS))
936 if (Constant *RC = dyn_cast<Constant>(RHS))
937 return Folder.CreateICmp(P, LC, RC);
938 return Insert(new ICmpInst(P, LHS, RHS), Name);
940 Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
941 const Twine &Name = "") {
942 if (Constant *LC = dyn_cast<Constant>(LHS))
943 if (Constant *RC = dyn_cast<Constant>(RHS))
944 return Folder.CreateFCmp(P, LC, RC);
945 return Insert(new FCmpInst(P, LHS, RHS), Name);
948 //===--------------------------------------------------------------------===//
949 // Instruction creation methods: Other Instructions
950 //===--------------------------------------------------------------------===//
952 PHINode *CreatePHI(const Type *Ty, const Twine &Name = "") {
953 return Insert(PHINode::Create(Ty), Name);
956 CallInst *CreateCall(Value *Callee, const Twine &Name = "") {
957 return Insert(CallInst::Create(Callee), Name);
959 CallInst *CreateCall(Value *Callee, Value *Arg, const Twine &Name = "") {
960 return Insert(CallInst::Create(Callee, Arg), Name);
962 CallInst *CreateCall2(Value *Callee, Value *Arg1, Value *Arg2,
963 const Twine &Name = "") {
964 Value *Args[] = { Arg1, Arg2 };
965 return Insert(CallInst::Create(Callee, Args, Args+2), Name);
967 CallInst *CreateCall3(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
968 const Twine &Name = "") {
969 Value *Args[] = { Arg1, Arg2, Arg3 };
970 return Insert(CallInst::Create(Callee, Args, Args+3), Name);
972 CallInst *CreateCall4(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
973 Value *Arg4, const Twine &Name = "") {
974 Value *Args[] = { Arg1, Arg2, Arg3, Arg4 };
975 return Insert(CallInst::Create(Callee, Args, Args+4), Name);
977 CallInst *CreateCall5(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
978 Value *Arg4, Value *Arg5, const Twine &Name = "") {
979 Value *Args[] = { Arg1, Arg2, Arg3, Arg4, Arg5 };
980 return Insert(CallInst::Create(Callee, Args, Args+5), Name);
983 template<typename InputIterator>
984 CallInst *CreateCall(Value *Callee, InputIterator ArgBegin,
985 InputIterator ArgEnd, const Twine &Name = "") {
986 return Insert(CallInst::Create(Callee, ArgBegin, ArgEnd), Name);
989 Value *CreateSelect(Value *C, Value *True, Value *False,
990 const Twine &Name = "") {
991 if (Constant *CC = dyn_cast<Constant>(C))
992 if (Constant *TC = dyn_cast<Constant>(True))
993 if (Constant *FC = dyn_cast<Constant>(False))
994 return Folder.CreateSelect(CC, TC, FC);
995 return Insert(SelectInst::Create(C, True, False), Name);
998 VAArgInst *CreateVAArg(Value *List, const Type *Ty, const Twine &Name = "") {
999 return Insert(new VAArgInst(List, Ty), Name);
1002 Value *CreateExtractElement(Value *Vec, Value *Idx,
1003 const Twine &Name = "") {
1004 if (Constant *VC = dyn_cast<Constant>(Vec))
1005 if (Constant *IC = dyn_cast<Constant>(Idx))
1006 return Folder.CreateExtractElement(VC, IC);
1007 return Insert(ExtractElementInst::Create(Vec, Idx), Name);
1010 Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
1011 const Twine &Name = "") {
1012 if (Constant *VC = dyn_cast<Constant>(Vec))
1013 if (Constant *NC = dyn_cast<Constant>(NewElt))
1014 if (Constant *IC = dyn_cast<Constant>(Idx))
1015 return Folder.CreateInsertElement(VC, NC, IC);
1016 return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
1019 Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
1020 const Twine &Name = "") {
1021 if (Constant *V1C = dyn_cast<Constant>(V1))
1022 if (Constant *V2C = dyn_cast<Constant>(V2))
1023 if (Constant *MC = dyn_cast<Constant>(Mask))
1024 return Folder.CreateShuffleVector(V1C, V2C, MC);
1025 return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
1028 Value *CreateExtractValue(Value *Agg, unsigned Idx,
1029 const Twine &Name = "") {
1030 if (Constant *AggC = dyn_cast<Constant>(Agg))
1031 return Folder.CreateExtractValue(AggC, &Idx, 1);
1032 return Insert(ExtractValueInst::Create(Agg, Idx), Name);
1035 template<typename InputIterator>
1036 Value *CreateExtractValue(Value *Agg,
1037 InputIterator IdxBegin,
1038 InputIterator IdxEnd,
1039 const Twine &Name = "") {
1040 if (Constant *AggC = dyn_cast<Constant>(Agg))
1041 return Folder.CreateExtractValue(AggC, IdxBegin, IdxEnd - IdxBegin);
1042 return Insert(ExtractValueInst::Create(Agg, IdxBegin, IdxEnd), Name);
1045 Value *CreateInsertValue(Value *Agg, Value *Val, unsigned Idx,
1046 const Twine &Name = "") {
1047 if (Constant *AggC = dyn_cast<Constant>(Agg))
1048 if (Constant *ValC = dyn_cast<Constant>(Val))
1049 return Folder.CreateInsertValue(AggC, ValC, &Idx, 1);
1050 return Insert(InsertValueInst::Create(Agg, Val, Idx), Name);
1053 template<typename InputIterator>
1054 Value *CreateInsertValue(Value *Agg, Value *Val,
1055 InputIterator IdxBegin,
1056 InputIterator IdxEnd,
1057 const Twine &Name = "") {
1058 if (Constant *AggC = dyn_cast<Constant>(Agg))
1059 if (Constant *ValC = dyn_cast<Constant>(Val))
1060 return Folder.CreateInsertValue(AggC, ValC, IdxBegin, IdxEnd-IdxBegin);
1061 return Insert(InsertValueInst::Create(Agg, Val, IdxBegin, IdxEnd), Name);
1064 //===--------------------------------------------------------------------===//
1065 // Utility creation methods
1066 //===--------------------------------------------------------------------===//
1068 /// CreateIsNull - Return an i1 value testing if \arg Arg is null.
1069 Value *CreateIsNull(Value *Arg, const Twine &Name = "") {
1070 return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
1074 /// CreateIsNotNull - Return an i1 value testing if \arg Arg is not null.
1075 Value *CreateIsNotNull(Value *Arg, const Twine &Name = "") {
1076 return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
1080 /// CreatePtrDiff - Return the i64 difference between two pointer values,
1081 /// dividing out the size of the pointed-to objects. This is intended to
1082 /// implement C-style pointer subtraction. As such, the pointers must be
1083 /// appropriately aligned for their element types and pointing into the
1085 Value *CreatePtrDiff(Value *LHS, Value *RHS, const Twine &Name = "") {
1086 assert(LHS->getType() == RHS->getType() &&
1087 "Pointer subtraction operand types must match!");
1088 const PointerType *ArgType = cast<PointerType>(LHS->getType());
1089 Value *LHS_int = CreatePtrToInt(LHS, Type::getInt64Ty(Context));
1090 Value *RHS_int = CreatePtrToInt(RHS, Type::getInt64Ty(Context));
1091 Value *Difference = CreateSub(LHS_int, RHS_int);
1092 return CreateExactSDiv(Difference,
1093 ConstantExpr::getSizeOf(ArgType->getElementType()),