diff --git a/llvm/include/llvm/Module.h b/llvm/include/llvm/Module.h index 901fada3ebfc..15e0a17e1e5b 100644 --- a/llvm/include/llvm/Module.h +++ b/llvm/include/llvm/Module.h @@ -326,6 +326,7 @@ public: /// specified name. This method returns null if a NamedMDNode with the /// specified name is not found. NamedMDNode *getNamedMetadata(StringRef Name) const; + NamedMDNode *getNamedMetadataUsingTwine(Twine Name) const; /// getOrInsertNamedMetadata - Return the first named MDNode in the module /// with the specified name. This method returns a new NamedMDNode if a diff --git a/llvm/lib/Analysis/DebugInfo.cpp b/llvm/lib/Analysis/DebugInfo.cpp index 774dce064210..6ef160b97260 100644 --- a/llvm/lib/Analysis/DebugInfo.cpp +++ b/llvm/lib/Analysis/DebugInfo.cpp @@ -1053,8 +1053,12 @@ DIVariable DIFactory::CreateVariable(unsigned Tag, DIDescriptor Context, // The optimizer may remove local variable. If there is an interest // to preserve variable info in such situation then stash it in a // named mdnode. - NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.lv"); - NMD->addOperand(Node); + DISubprogram Fn(getDISubprogram(Context)); + const Twine FnLVName = Twine("llvm.dbg.lv.", Fn.getName()); + NamedMDNode *FnLocals = M.getNamedMetadataUsingTwine(FnLVName); + if (!FnLocals) + FnLocals = NamedMDNode::Create(VMContext, FnLVName, NULL, 0, &M); + FnLocals->addOperand(Node); } return DIVariable(Node); } diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 4705a0eed354..7da363fa561a 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -2259,8 +2259,9 @@ void DwarfDebug::collectVariableInfo(const MachineFunction *MF) { } // Collect info for variables that were optimized out. - if (NamedMDNode *NMD = - MF->getFunction()->getParent()->getNamedMetadata("llvm.dbg.lv")) { + const Twine FnLVName = Twine("llvm.dbg.lv.", MF->getFunction()->getName()); + if (NamedMDNode *NMD = + MF->getFunction()->getParent()->getNamedMetadataUsingTwine(FnLVName)) { for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) { DIVariable DV(cast_or_null(NMD->getOperand(i))); if (!DV || !Processed.insert(DV)) diff --git a/llvm/lib/VMCore/Module.cpp b/llvm/lib/VMCore/Module.cpp index 94840f07a4ab..a4c3d2e9a0ed 100644 --- a/llvm/lib/VMCore/Module.cpp +++ b/llvm/lib/VMCore/Module.cpp @@ -17,6 +17,7 @@ #include "llvm/DerivedTypes.h" #include "llvm/GVMaterializer.h" #include "llvm/LLVMContext.h" +#include "llvm/ADT/SmallString.h" #include "llvm/ADT/STLExtras.h" #include "llvm/ADT/StringExtras.h" #include "llvm/Support/LeakDetector.h" @@ -316,6 +317,12 @@ NamedMDNode *Module::getNamedMetadata(StringRef Name) const { return NamedMDSymTab->lookup(Name); } +NamedMDNode *Module::getNamedMetadataUsingTwine(Twine Name) const { + SmallString<256> NameData; + StringRef NameRef = Name.toStringRef(NameData); + return NamedMDSymTab->lookup(NameRef); +} + /// getOrInsertNamedMetadata - Return the first named MDNode in the module /// with the specified name. This method returns a new NamedMDNode if a /// NamedMDNode with the specified name is not found.