/// processSubprogram - Process DISubprogram. void DebugInfoFinder::processSubprogram(DISubprogram SP) { if (!addSubprogram(SP)) return; if (SP.getVersion() <= LLVMDebugVersion10) addCompileUnit(SP.getCompileUnit()); processType(SP.getType()); }
/// processSubprogram - Process DISubprogram. void DebugInfoFinder::processSubprogram(DISubprogram SP) { if (SP.isNull()) return; if (!addSubprogram(SP)) return; addCompileUnit(SP.getCompileUnit()); processType(SP.getType()); }
/// addPubTypes - Add type for pubtypes section. void CompileUnit::addPubTypes(DISubprogram SP) { DICompositeType SPTy = SP.getType(); unsigned SPTag = SPTy.getTag(); if (SPTag != dwarf::DW_TAG_subroutine_type) return; DIArray Args = SPTy.getTypeArray(); for (unsigned i = 0, e = Args.getNumElements(); i != e; ++i) { DIType ATy(Args.getElement(i)); if (!ATy.Verify()) continue; addGlobalType(ATy); } }
void DebugInfoFinder::processSubprogram(DISubprogram SP) { if (!addSubprogram(SP)) return; processScope(SP.getContext().resolve(TypeIdentifierMap)); processType(SP.getType()); for (auto *Element : SP.getTemplateParams()) { if (DITemplateTypeParameter TType = dyn_cast<MDTemplateTypeParameter>(Element)) { processType(TType.getType().resolve(TypeIdentifierMap)); } else if (DITemplateValueParameter TVal = dyn_cast<MDTemplateValueParameter>(Element)) { processType(TVal.getType().resolve(TypeIdentifierMap)); } } }
void DebugInfoFinder::processSubprogram(DISubprogram SP) { if (!addSubprogram(SP)) return; processScope(SP.getContext().resolve(TypeIdentifierMap)); processType(SP.getType()); DIArray TParams = SP.getTemplateParams(); for (unsigned I = 0, E = TParams.getNumElements(); I != E; ++I) { DIDescriptor Element = TParams.getElement(I); if (Element.isTemplateTypeParameter()) { DITemplateTypeParameter TType(Element); processType(TType.getType().resolve(TypeIdentifierMap)); } else if (Element.isTemplateValueParameter()) { DITemplateValueParameter TVal(Element); processType(TVal.getType().resolve(TypeIdentifierMap)); } } }
/// processSubprogram - Process DISubprogram. void DebugInfoFinder::processSubprogram(DISubprogram SP) { if (!addSubprogram(SP)) return; processType(SP.getType()); }
// Clone OldFunc into NewFunc, transforming the old arguments into references to // VMap values. // void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc, ValueToValueMapTy &VMap, bool ModuleLevelChanges, SmallVectorImpl<ReturnInst*> &Returns, const char *NameSuffix, ClonedCodeInfo *CodeInfo, ValueMapTypeRemapper *TypeMapper, ValueMaterializer *Materializer) { assert(NameSuffix && "NameSuffix cannot be null!"); #ifndef NDEBUG for (const Argument &I : OldFunc->args()) assert(VMap.count(&I) && "No mapping from source argument specified!"); #endif // Copy all attributes other than those stored in the AttributeList. We need // to remap the parameter indices of the AttributeList. AttributeList NewAttrs = NewFunc->getAttributes(); NewFunc->copyAttributesFrom(OldFunc); NewFunc->setAttributes(NewAttrs); // Fix up the personality function that got copied over. if (OldFunc->hasPersonalityFn()) NewFunc->setPersonalityFn( MapValue(OldFunc->getPersonalityFn(), VMap, ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges, TypeMapper, Materializer)); SmallVector<AttributeSet, 4> NewArgAttrs(NewFunc->arg_size()); AttributeList OldAttrs = OldFunc->getAttributes(); // Clone any argument attributes that are present in the VMap. for (const Argument &OldArg : OldFunc->args()) { if (Argument *NewArg = dyn_cast<Argument>(VMap[&OldArg])) { NewArgAttrs[NewArg->getArgNo()] = OldAttrs.getParamAttributes(OldArg.getArgNo()); } } NewFunc->setAttributes( AttributeList::get(NewFunc->getContext(), OldAttrs.getFnAttributes(), OldAttrs.getRetAttributes(), NewArgAttrs)); bool MustCloneSP = OldFunc->getParent() && OldFunc->getParent() == NewFunc->getParent(); DISubprogram *SP = OldFunc->getSubprogram(); if (SP) { assert(!MustCloneSP || ModuleLevelChanges); // Add mappings for some DebugInfo nodes that we don't want duplicated // even if they're distinct. auto &MD = VMap.MD(); MD[SP->getUnit()].reset(SP->getUnit()); MD[SP->getType()].reset(SP->getType()); MD[SP->getFile()].reset(SP->getFile()); // If we're not cloning into the same module, no need to clone the // subprogram if (!MustCloneSP) MD[SP].reset(SP); } SmallVector<std::pair<unsigned, MDNode *>, 1> MDs; OldFunc->getAllMetadata(MDs); for (auto MD : MDs) { NewFunc->addMetadata( MD.first, *MapMetadata(MD.second, VMap, ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges, TypeMapper, Materializer)); } // When we remap instructions, we want to avoid duplicating inlined // DISubprograms, so record all subprograms we find as we duplicate // instructions and then freeze them in the MD map. DebugInfoFinder DIFinder; // Loop over all of the basic blocks in the function, cloning them as // appropriate. Note that we save BE this way in order to handle cloning of // recursive functions into themselves. // for (Function::const_iterator BI = OldFunc->begin(), BE = OldFunc->end(); BI != BE; ++BI) { const BasicBlock &BB = *BI; // Create a new basic block and copy instructions into it! BasicBlock *CBB = CloneBasicBlock(&BB, VMap, NameSuffix, NewFunc, CodeInfo, SP ? &DIFinder : nullptr); // Add basic block mapping. VMap[&BB] = CBB; // It is only legal to clone a function if a block address within that // function is never referenced outside of the function. Given that, we // want to map block addresses from the old function to block addresses in // the clone. (This is different from the generic ValueMapper // implementation, which generates an invalid blockaddress when // cloning a function.) if (BB.hasAddressTaken()) { Constant *OldBBAddr = BlockAddress::get(const_cast<Function*>(OldFunc), const_cast<BasicBlock*>(&BB)); VMap[OldBBAddr] = BlockAddress::get(NewFunc, CBB); } // Note return instructions for the caller. if (ReturnInst *RI = dyn_cast<ReturnInst>(CBB->getTerminator())) Returns.push_back(RI); } for (DISubprogram *ISP : DIFinder.subprograms()) { if (ISP != SP) { VMap.MD()[ISP].reset(ISP); } } // Loop over all of the instructions in the function, fixing up operand // references as we go. This uses VMap to do all the hard work. for (Function::iterator BB = cast<BasicBlock>(VMap[&OldFunc->front()])->getIterator(), BE = NewFunc->end(); BB != BE; ++BB) // Loop over all instructions, fixing each one as we find it... for (Instruction &II : *BB) RemapInstruction(&II, VMap, ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges, TypeMapper, Materializer); }