1 //===--- InterpFrame.cpp - Call Frame implementation for the VM -*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
25 InterpFrame::InterpFrame(InterpState &S, const Function *Func,  in InterpFrame()  argument
27     : Caller(Caller), S(S), Depth(Caller ? Caller->Depth + 1 : 0), Func(Func),  in InterpFrame()
30   if (!Func)  in InterpFrame()
33   unsigned FrameSize = Func->getFrameSize();  in InterpFrame()
38   for (auto &Scope : Func->scopes()) {  in InterpFrame()
42       B->invokeCtor();  in InterpFrame()
48 InterpFrame::InterpFrame(InterpState &S, const Function *Func, CodePtr RetPC,  in InterpFrame()  argument
50     : InterpFrame(S, Func, S.Current, RetPC, Func->getArgSize() + VarArgSize) {  in InterpFrame()
57   if (Func->hasRVO())  in InterpFrame()
60   if (Func->hasThisPointer()) {  in InterpFrame()
61     if (Func->hasRVO())  in InterpFrame()
74   // This happens when the execution is interruped midway-through.  in ~InterpFrame()
75   if (Func) {  in ~InterpFrame()
76     for (auto &Scope : Func->scopes()) {  in ~InterpFrame()
79         if (B->isInitialized())  in ~InterpFrame()
80           B->invokeDtor();  in ~InterpFrame()
87   for (auto &Local : Func->getScope(Idx).locals()) {  in destroy()
93   for (PrimType Ty : Func->args_reverse())  in popArgs()
111     if (const auto *D = Desc->asDecl()) {  in print()
122     if (const auto *E = Desc->asExpr()) {  in print()
123       E->printPretty(OS, nullptr, Ctx.getPrintingPolicy());  in print()
129   if (!Ty->isReferenceType())  in print()
163       F && (F->isBuiltin() || F->isLambdaStaticInvoker()))  in describe()
168       M && M->isInstance() && !isa<CXXConstructorDecl>(F)) {  in describe()
169     print(OS, This, S.getCtx(), S.getCtx().getRecordType(M->getParent()));  in describe()
170     OS << "->";  in describe()
173   F->getNameForDiagnostic(OS, S.getCtx().getPrintingPolicy(),  in describe()
178   Off += Func->hasRVO() ? primSize(PT_Ptr) : 0;  in describe()
179   Off += Func->hasThisPointer() ? primSize(PT_Ptr) : 0;  in describe()
181   for (unsigned I = 0, N = F->getNumParams(); I < N; ++I) {  in describe()
182     QualType Ty = F->getParamDecl(I)->getType();  in describe()
195   if (Caller->Caller)  in getCaller()
201   if (!Caller->Func) {  in getCallRange()
206   return S.getRange(Caller->Func, RetPC - sizeof(uintptr_t));  in getCallRange()
210   if (!Func)  in getCallee()
212   return Func->getDecl();  in getCallee()
216   assert(Offset < Func->getFrameSize() && "Invalid local offset.");  in getLocalPointer()
223     return Pointer(reinterpret_cast<Block *>(Pt->second.get()));  in getParamPointer()
226   const auto &Desc = Func->getParamDescriptor(Off);  in getParamPointer()
227   size_t BlockSize = sizeof(Block) + Desc.second->getAllocSize();  in getParamPointer()
230   B->invokeCtor();  in getParamPointer()
233   TYPE_SWITCH(Desc.first, new (B->data()) T(stackRef<T>(Off)));  in getParamPointer()
243   if (Func && (!Func->hasBody() || Func->getDecl()->isImplicit()) && Caller)  in getSource()
244     return Caller->getSource(RetPC);  in getSource()
246   return S.getSource(Func, PC);  in getSource()
250   if (Func && (!Func->hasBody() || Func->getDecl()->isImplicit()) && Caller)  in getExpr()
251     return Caller->getExpr(RetPC);  in getExpr()
253   return S.getExpr(Func, PC);  in getExpr()
257   if (Func && (!Func->hasBody() || Func->getDecl()->isImplicit()) && Caller)  in getLocation()
258     return Caller->getLocation(RetPC);  in getLocation()
260   return S.getLocation(Func, PC);  in getLocation()
264   if (Func && (!Func->hasBody() || Func->getDecl()->isImplicit()) && Caller)  in getRange()
265     return Caller->getRange(RetPC);  in getRange()
267   return S.getRange(Func, PC);  in getRange()