1 //===---- IRBuilder.cpp - Builder for LLVM Instrs -------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements the IRBuilder class, which is used as a convenient way
11 // to create LLVM instructions with a consistent and simplified interface.
12 //
13 //===----------------------------------------------------------------------===//
14
15 #include "llvm/IR/Function.h"
16 #include "llvm/IR/GlobalVariable.h"
17 #include "llvm/IR/IRBuilder.h"
18 #include "llvm/IR/Intrinsics.h"
19 #include "llvm/IR/LLVMContext.h"
20 #include "llvm/IR/Statepoint.h"
21 using namespace llvm;
22
23 /// CreateGlobalString - Make a new global variable with an initializer that
24 /// has array of i8 type filled in with the nul terminated string value
25 /// specified. If Name is specified, it is the name of the global variable
26 /// created.
CreateGlobalString(StringRef Str,const Twine & Name,unsigned AddressSpace)27 GlobalVariable *IRBuilderBase::CreateGlobalString(StringRef Str,
28 const Twine &Name,
29 unsigned AddressSpace) {
30 Constant *StrConstant = ConstantDataArray::getString(Context, Str);
31 Module &M = *BB->getParent()->getParent();
32 GlobalVariable *GV = new GlobalVariable(M, StrConstant->getType(),
33 true, GlobalValue::PrivateLinkage,
34 StrConstant, Name, nullptr,
35 GlobalVariable::NotThreadLocal,
36 AddressSpace);
37 GV->setUnnamedAddr(true);
38 return GV;
39 }
40
getCurrentFunctionReturnType() const41 Type *IRBuilderBase::getCurrentFunctionReturnType() const {
42 assert(BB && BB->getParent() && "No current function!");
43 return BB->getParent()->getReturnType();
44 }
45
getCastedInt8PtrValue(Value * Ptr)46 Value *IRBuilderBase::getCastedInt8PtrValue(Value *Ptr) {
47 PointerType *PT = cast<PointerType>(Ptr->getType());
48 if (PT->getElementType()->isIntegerTy(8))
49 return Ptr;
50
51 // Otherwise, we need to insert a bitcast.
52 PT = getInt8PtrTy(PT->getAddressSpace());
53 BitCastInst *BCI = new BitCastInst(Ptr, PT, "");
54 BB->getInstList().insert(InsertPt, BCI);
55 SetInstDebugLocation(BCI);
56 return BCI;
57 }
58
createCallHelper(Value * Callee,ArrayRef<Value * > Ops,IRBuilderBase * Builder,const Twine & Name="")59 static CallInst *createCallHelper(Value *Callee, ArrayRef<Value *> Ops,
60 IRBuilderBase *Builder,
61 const Twine& Name="") {
62 CallInst *CI = CallInst::Create(Callee, Ops, Name);
63 Builder->GetInsertBlock()->getInstList().insert(Builder->GetInsertPoint(),CI);
64 Builder->SetInstDebugLocation(CI);
65 return CI;
66 }
67
createInvokeHelper(Value * Invokee,BasicBlock * NormalDest,BasicBlock * UnwindDest,ArrayRef<Value * > Ops,IRBuilderBase * Builder,const Twine & Name="")68 static InvokeInst *createInvokeHelper(Value *Invokee, BasicBlock *NormalDest,
69 BasicBlock *UnwindDest,
70 ArrayRef<Value *> Ops,
71 IRBuilderBase *Builder,
72 const Twine &Name = "") {
73 InvokeInst *II =
74 InvokeInst::Create(Invokee, NormalDest, UnwindDest, Ops, Name);
75 Builder->GetInsertBlock()->getInstList().insert(Builder->GetInsertPoint(),
76 II);
77 Builder->SetInstDebugLocation(II);
78 return II;
79 }
80
81 CallInst *IRBuilderBase::
CreateMemSet(Value * Ptr,Value * Val,Value * Size,unsigned Align,bool isVolatile,MDNode * TBAATag,MDNode * ScopeTag,MDNode * NoAliasTag)82 CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
83 bool isVolatile, MDNode *TBAATag, MDNode *ScopeTag,
84 MDNode *NoAliasTag) {
85 Ptr = getCastedInt8PtrValue(Ptr);
86 Value *Ops[] = { Ptr, Val, Size, getInt32(Align), getInt1(isVolatile) };
87 Type *Tys[] = { Ptr->getType(), Size->getType() };
88 Module *M = BB->getParent()->getParent();
89 Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memset, Tys);
90
91 CallInst *CI = createCallHelper(TheFn, Ops, this);
92
93 // Set the TBAA info if present.
94 if (TBAATag)
95 CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
96
97 if (ScopeTag)
98 CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
99
100 if (NoAliasTag)
101 CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
102
103 return CI;
104 }
105
106 CallInst *IRBuilderBase::
CreateMemCpy(Value * Dst,Value * Src,Value * Size,unsigned Align,bool isVolatile,MDNode * TBAATag,MDNode * TBAAStructTag,MDNode * ScopeTag,MDNode * NoAliasTag)107 CreateMemCpy(Value *Dst, Value *Src, Value *Size, unsigned Align,
108 bool isVolatile, MDNode *TBAATag, MDNode *TBAAStructTag,
109 MDNode *ScopeTag, MDNode *NoAliasTag) {
110 Dst = getCastedInt8PtrValue(Dst);
111 Src = getCastedInt8PtrValue(Src);
112
113 Value *Ops[] = { Dst, Src, Size, getInt32(Align), getInt1(isVolatile) };
114 Type *Tys[] = { Dst->getType(), Src->getType(), Size->getType() };
115 Module *M = BB->getParent()->getParent();
116 Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memcpy, Tys);
117
118 CallInst *CI = createCallHelper(TheFn, Ops, this);
119
120 // Set the TBAA info if present.
121 if (TBAATag)
122 CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
123
124 // Set the TBAA Struct info if present.
125 if (TBAAStructTag)
126 CI->setMetadata(LLVMContext::MD_tbaa_struct, TBAAStructTag);
127
128 if (ScopeTag)
129 CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
130
131 if (NoAliasTag)
132 CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
133
134 return CI;
135 }
136
137 CallInst *IRBuilderBase::
CreateMemMove(Value * Dst,Value * Src,Value * Size,unsigned Align,bool isVolatile,MDNode * TBAATag,MDNode * ScopeTag,MDNode * NoAliasTag)138 CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
139 bool isVolatile, MDNode *TBAATag, MDNode *ScopeTag,
140 MDNode *NoAliasTag) {
141 Dst = getCastedInt8PtrValue(Dst);
142 Src = getCastedInt8PtrValue(Src);
143
144 Value *Ops[] = { Dst, Src, Size, getInt32(Align), getInt1(isVolatile) };
145 Type *Tys[] = { Dst->getType(), Src->getType(), Size->getType() };
146 Module *M = BB->getParent()->getParent();
147 Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::memmove, Tys);
148
149 CallInst *CI = createCallHelper(TheFn, Ops, this);
150
151 // Set the TBAA info if present.
152 if (TBAATag)
153 CI->setMetadata(LLVMContext::MD_tbaa, TBAATag);
154
155 if (ScopeTag)
156 CI->setMetadata(LLVMContext::MD_alias_scope, ScopeTag);
157
158 if (NoAliasTag)
159 CI->setMetadata(LLVMContext::MD_noalias, NoAliasTag);
160
161 return CI;
162 }
163
CreateLifetimeStart(Value * Ptr,ConstantInt * Size)164 CallInst *IRBuilderBase::CreateLifetimeStart(Value *Ptr, ConstantInt *Size) {
165 assert(isa<PointerType>(Ptr->getType()) &&
166 "lifetime.start only applies to pointers.");
167 Ptr = getCastedInt8PtrValue(Ptr);
168 if (!Size)
169 Size = getInt64(-1);
170 else
171 assert(Size->getType() == getInt64Ty() &&
172 "lifetime.start requires the size to be an i64");
173 Value *Ops[] = { Size, Ptr };
174 Module *M = BB->getParent()->getParent();
175 Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_start);
176 return createCallHelper(TheFn, Ops, this);
177 }
178
CreateLifetimeEnd(Value * Ptr,ConstantInt * Size)179 CallInst *IRBuilderBase::CreateLifetimeEnd(Value *Ptr, ConstantInt *Size) {
180 assert(isa<PointerType>(Ptr->getType()) &&
181 "lifetime.end only applies to pointers.");
182 Ptr = getCastedInt8PtrValue(Ptr);
183 if (!Size)
184 Size = getInt64(-1);
185 else
186 assert(Size->getType() == getInt64Ty() &&
187 "lifetime.end requires the size to be an i64");
188 Value *Ops[] = { Size, Ptr };
189 Module *M = BB->getParent()->getParent();
190 Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_end);
191 return createCallHelper(TheFn, Ops, this);
192 }
193
CreateAssumption(Value * Cond)194 CallInst *IRBuilderBase::CreateAssumption(Value *Cond) {
195 assert(Cond->getType() == getInt1Ty() &&
196 "an assumption condition must be of type i1");
197
198 Value *Ops[] = { Cond };
199 Module *M = BB->getParent()->getParent();
200 Value *FnAssume = Intrinsic::getDeclaration(M, Intrinsic::assume);
201 return createCallHelper(FnAssume, Ops, this);
202 }
203
204 /// Create a call to a Masked Load intrinsic.
205 /// Ptr - the base pointer for the load
206 /// Align - alignment of the source location
207 /// Mask - an vector of booleans which indicates what vector lanes should
208 /// be accessed in memory
209 /// PassThru - a pass-through value that is used to fill the masked-off lanes
210 /// of the result
211 /// Name - name of the result variable
CreateMaskedLoad(Value * Ptr,unsigned Align,Value * Mask,Value * PassThru,const Twine & Name)212 CallInst *IRBuilderBase::CreateMaskedLoad(Value *Ptr, unsigned Align,
213 Value *Mask, Value *PassThru,
214 const Twine &Name) {
215 assert(Ptr->getType()->isPointerTy() && "Ptr must be of pointer type");
216 // DataTy is the overloaded type
217 Type *DataTy = cast<PointerType>(Ptr->getType())->getElementType();
218 assert(DataTy->isVectorTy() && "Ptr should point to a vector");
219 if (!PassThru)
220 PassThru = UndefValue::get(DataTy);
221 Value *Ops[] = { Ptr, getInt32(Align), Mask, PassThru};
222 return CreateMaskedIntrinsic(Intrinsic::masked_load, Ops, DataTy, Name);
223 }
224
225 /// Create a call to a Masked Store intrinsic.
226 /// Val - the data to be stored,
227 /// Ptr - the base pointer for the store
228 /// Align - alignment of the destination location
229 /// Mask - an vector of booleans which indicates what vector lanes should
230 /// be accessed in memory
CreateMaskedStore(Value * Val,Value * Ptr,unsigned Align,Value * Mask)231 CallInst *IRBuilderBase::CreateMaskedStore(Value *Val, Value *Ptr,
232 unsigned Align, Value *Mask) {
233 Value *Ops[] = { Val, Ptr, getInt32(Align), Mask };
234 // Type of the data to be stored - the only one overloaded type
235 return CreateMaskedIntrinsic(Intrinsic::masked_store, Ops, Val->getType());
236 }
237
238 /// Create a call to a Masked intrinsic, with given intrinsic Id,
239 /// an array of operands - Ops, and one overloaded type - DataTy
CreateMaskedIntrinsic(Intrinsic::ID Id,ArrayRef<Value * > Ops,Type * DataTy,const Twine & Name)240 CallInst *IRBuilderBase::CreateMaskedIntrinsic(Intrinsic::ID Id,
241 ArrayRef<Value *> Ops,
242 Type *DataTy,
243 const Twine &Name) {
244 Module *M = BB->getParent()->getParent();
245 Type *OverloadedTypes[] = { DataTy };
246 Value *TheFn = Intrinsic::getDeclaration(M, Id, OverloadedTypes);
247 return createCallHelper(TheFn, Ops, this, Name);
248 }
249
250 template <typename T0, typename T1, typename T2, typename T3>
251 static std::vector<Value *>
getStatepointArgs(IRBuilderBase & B,uint64_t ID,uint32_t NumPatchBytes,Value * ActualCallee,uint32_t Flags,ArrayRef<T0> CallArgs,ArrayRef<T1> TransitionArgs,ArrayRef<T2> DeoptArgs,ArrayRef<T3> GCArgs)252 getStatepointArgs(IRBuilderBase &B, uint64_t ID, uint32_t NumPatchBytes,
253 Value *ActualCallee, uint32_t Flags, ArrayRef<T0> CallArgs,
254 ArrayRef<T1> TransitionArgs, ArrayRef<T2> DeoptArgs,
255 ArrayRef<T3> GCArgs) {
256 std::vector<Value *> Args;
257 Args.push_back(B.getInt64(ID));
258 Args.push_back(B.getInt32(NumPatchBytes));
259 Args.push_back(ActualCallee);
260 Args.push_back(B.getInt32(CallArgs.size()));
261 Args.push_back(B.getInt32(Flags));
262 Args.insert(Args.end(), CallArgs.begin(), CallArgs.end());
263 Args.push_back(B.getInt32(TransitionArgs.size()));
264 Args.insert(Args.end(), TransitionArgs.begin(), TransitionArgs.end());
265 Args.push_back(B.getInt32(DeoptArgs.size()));
266 Args.insert(Args.end(), DeoptArgs.begin(), DeoptArgs.end());
267 Args.insert(Args.end(), GCArgs.begin(), GCArgs.end());
268
269 return Args;
270 }
271
272 template <typename T0, typename T1, typename T2, typename T3>
CreateGCStatepointCallCommon(IRBuilderBase * Builder,uint64_t ID,uint32_t NumPatchBytes,Value * ActualCallee,uint32_t Flags,ArrayRef<T0> CallArgs,ArrayRef<T1> TransitionArgs,ArrayRef<T2> DeoptArgs,ArrayRef<T3> GCArgs,const Twine & Name)273 static CallInst *CreateGCStatepointCallCommon(
274 IRBuilderBase *Builder, uint64_t ID, uint32_t NumPatchBytes,
275 Value *ActualCallee, uint32_t Flags, ArrayRef<T0> CallArgs,
276 ArrayRef<T1> TransitionArgs, ArrayRef<T2> DeoptArgs, ArrayRef<T3> GCArgs,
277 const Twine &Name) {
278 // Extract out the type of the callee.
279 PointerType *FuncPtrType = cast<PointerType>(ActualCallee->getType());
280 assert(isa<FunctionType>(FuncPtrType->getElementType()) &&
281 "actual callee must be a callable value");
282
283 Module *M = Builder->GetInsertBlock()->getParent()->getParent();
284 // Fill in the one generic type'd argument (the function is also vararg)
285 Type *ArgTypes[] = { FuncPtrType };
286 Function *FnStatepoint =
287 Intrinsic::getDeclaration(M, Intrinsic::experimental_gc_statepoint,
288 ArgTypes);
289
290 std::vector<llvm::Value *> Args =
291 getStatepointArgs(*Builder, ID, NumPatchBytes, ActualCallee, Flags,
292 CallArgs, TransitionArgs, DeoptArgs, GCArgs);
293 return createCallHelper(FnStatepoint, Args, Builder, Name);
294 }
295
CreateGCStatepointCall(uint64_t ID,uint32_t NumPatchBytes,Value * ActualCallee,ArrayRef<Value * > CallArgs,ArrayRef<Value * > DeoptArgs,ArrayRef<Value * > GCArgs,const Twine & Name)296 CallInst *IRBuilderBase::CreateGCStatepointCall(
297 uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee,
298 ArrayRef<Value *> CallArgs, ArrayRef<Value *> DeoptArgs,
299 ArrayRef<Value *> GCArgs, const Twine &Name) {
300 return CreateGCStatepointCallCommon<Value *, Value *, Value *, Value *>(
301 this, ID, NumPatchBytes, ActualCallee, uint32_t(StatepointFlags::None),
302 CallArgs, None /* No Transition Args */, DeoptArgs, GCArgs, Name);
303 }
304
CreateGCStatepointCall(uint64_t ID,uint32_t NumPatchBytes,Value * ActualCallee,uint32_t Flags,ArrayRef<Use> CallArgs,ArrayRef<Use> TransitionArgs,ArrayRef<Use> DeoptArgs,ArrayRef<Value * > GCArgs,const Twine & Name)305 CallInst *IRBuilderBase::CreateGCStatepointCall(
306 uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee, uint32_t Flags,
307 ArrayRef<Use> CallArgs, ArrayRef<Use> TransitionArgs,
308 ArrayRef<Use> DeoptArgs, ArrayRef<Value *> GCArgs, const Twine &Name) {
309 return CreateGCStatepointCallCommon<Use, Use, Use, Value *>(
310 this, ID, NumPatchBytes, ActualCallee, Flags, CallArgs, TransitionArgs,
311 DeoptArgs, GCArgs, Name);
312 }
313
CreateGCStatepointCall(uint64_t ID,uint32_t NumPatchBytes,Value * ActualCallee,ArrayRef<Use> CallArgs,ArrayRef<Value * > DeoptArgs,ArrayRef<Value * > GCArgs,const Twine & Name)314 CallInst *IRBuilderBase::CreateGCStatepointCall(
315 uint64_t ID, uint32_t NumPatchBytes, Value *ActualCallee,
316 ArrayRef<Use> CallArgs, ArrayRef<Value *> DeoptArgs,
317 ArrayRef<Value *> GCArgs, const Twine &Name) {
318 return CreateGCStatepointCallCommon<Use, Value *, Value *, Value *>(
319 this, ID, NumPatchBytes, ActualCallee, uint32_t(StatepointFlags::None),
320 CallArgs, None, DeoptArgs, GCArgs, Name);
321 }
322
323 template <typename T0, typename T1, typename T2, typename T3>
CreateGCStatepointInvokeCommon(IRBuilderBase * Builder,uint64_t ID,uint32_t NumPatchBytes,Value * ActualInvokee,BasicBlock * NormalDest,BasicBlock * UnwindDest,uint32_t Flags,ArrayRef<T0> InvokeArgs,ArrayRef<T1> TransitionArgs,ArrayRef<T2> DeoptArgs,ArrayRef<T3> GCArgs,const Twine & Name)324 static InvokeInst *CreateGCStatepointInvokeCommon(
325 IRBuilderBase *Builder, uint64_t ID, uint32_t NumPatchBytes,
326 Value *ActualInvokee, BasicBlock *NormalDest, BasicBlock *UnwindDest,
327 uint32_t Flags, ArrayRef<T0> InvokeArgs, ArrayRef<T1> TransitionArgs,
328 ArrayRef<T2> DeoptArgs, ArrayRef<T3> GCArgs, const Twine &Name) {
329 // Extract out the type of the callee.
330 PointerType *FuncPtrType = cast<PointerType>(ActualInvokee->getType());
331 assert(isa<FunctionType>(FuncPtrType->getElementType()) &&
332 "actual callee must be a callable value");
333
334 Module *M = Builder->GetInsertBlock()->getParent()->getParent();
335 // Fill in the one generic type'd argument (the function is also vararg)
336 Function *FnStatepoint = Intrinsic::getDeclaration(
337 M, Intrinsic::experimental_gc_statepoint, {FuncPtrType});
338
339 std::vector<llvm::Value *> Args =
340 getStatepointArgs(*Builder, ID, NumPatchBytes, ActualInvokee, Flags,
341 InvokeArgs, TransitionArgs, DeoptArgs, GCArgs);
342 return createInvokeHelper(FnStatepoint, NormalDest, UnwindDest, Args, Builder,
343 Name);
344 }
345
CreateGCStatepointInvoke(uint64_t ID,uint32_t NumPatchBytes,Value * ActualInvokee,BasicBlock * NormalDest,BasicBlock * UnwindDest,ArrayRef<Value * > InvokeArgs,ArrayRef<Value * > DeoptArgs,ArrayRef<Value * > GCArgs,const Twine & Name)346 InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
347 uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
348 BasicBlock *NormalDest, BasicBlock *UnwindDest,
349 ArrayRef<Value *> InvokeArgs, ArrayRef<Value *> DeoptArgs,
350 ArrayRef<Value *> GCArgs, const Twine &Name) {
351 return CreateGCStatepointInvokeCommon<Value *, Value *, Value *, Value *>(
352 this, ID, NumPatchBytes, ActualInvokee, NormalDest, UnwindDest,
353 uint32_t(StatepointFlags::None), InvokeArgs, None /* No Transition Args*/,
354 DeoptArgs, GCArgs, Name);
355 }
356
CreateGCStatepointInvoke(uint64_t ID,uint32_t NumPatchBytes,Value * ActualInvokee,BasicBlock * NormalDest,BasicBlock * UnwindDest,uint32_t Flags,ArrayRef<Use> InvokeArgs,ArrayRef<Use> TransitionArgs,ArrayRef<Use> DeoptArgs,ArrayRef<Value * > GCArgs,const Twine & Name)357 InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
358 uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
359 BasicBlock *NormalDest, BasicBlock *UnwindDest, uint32_t Flags,
360 ArrayRef<Use> InvokeArgs, ArrayRef<Use> TransitionArgs,
361 ArrayRef<Use> DeoptArgs, ArrayRef<Value *> GCArgs, const Twine &Name) {
362 return CreateGCStatepointInvokeCommon<Use, Use, Use, Value *>(
363 this, ID, NumPatchBytes, ActualInvokee, NormalDest, UnwindDest, Flags,
364 InvokeArgs, TransitionArgs, DeoptArgs, GCArgs, Name);
365 }
366
CreateGCStatepointInvoke(uint64_t ID,uint32_t NumPatchBytes,Value * ActualInvokee,BasicBlock * NormalDest,BasicBlock * UnwindDest,ArrayRef<Use> InvokeArgs,ArrayRef<Value * > DeoptArgs,ArrayRef<Value * > GCArgs,const Twine & Name)367 InvokeInst *IRBuilderBase::CreateGCStatepointInvoke(
368 uint64_t ID, uint32_t NumPatchBytes, Value *ActualInvokee,
369 BasicBlock *NormalDest, BasicBlock *UnwindDest, ArrayRef<Use> InvokeArgs,
370 ArrayRef<Value *> DeoptArgs, ArrayRef<Value *> GCArgs, const Twine &Name) {
371 return CreateGCStatepointInvokeCommon<Use, Value *, Value *, Value *>(
372 this, ID, NumPatchBytes, ActualInvokee, NormalDest, UnwindDest,
373 uint32_t(StatepointFlags::None), InvokeArgs, None, DeoptArgs, GCArgs,
374 Name);
375 }
376
CreateGCResult(Instruction * Statepoint,Type * ResultType,const Twine & Name)377 CallInst *IRBuilderBase::CreateGCResult(Instruction *Statepoint,
378 Type *ResultType,
379 const Twine &Name) {
380 Intrinsic::ID ID = Intrinsic::experimental_gc_result;
381 Module *M = BB->getParent()->getParent();
382 Type *Types[] = {ResultType};
383 Value *FnGCResult = Intrinsic::getDeclaration(M, ID, Types);
384
385 Value *Args[] = {Statepoint};
386 return createCallHelper(FnGCResult, Args, this, Name);
387 }
388
CreateGCRelocate(Instruction * Statepoint,int BaseOffset,int DerivedOffset,Type * ResultType,const Twine & Name)389 CallInst *IRBuilderBase::CreateGCRelocate(Instruction *Statepoint,
390 int BaseOffset,
391 int DerivedOffset,
392 Type *ResultType,
393 const Twine &Name) {
394 Module *M = BB->getParent()->getParent();
395 Type *Types[] = {ResultType};
396 Value *FnGCRelocate =
397 Intrinsic::getDeclaration(M, Intrinsic::experimental_gc_relocate, Types);
398
399 Value *Args[] = {Statepoint,
400 getInt32(BaseOffset),
401 getInt32(DerivedOffset)};
402 return createCallHelper(FnGCRelocate, Args, this, Name);
403 }
404