[cfe-commits] r88792 - /cfe/trunk/lib/CodeGen/CGRtti.cpp

[Mike Stump]

Author: mrs
Date: Sat Nov 14 08:25:18 2009
New Revision: 88792

URL: http://llvm.org/viewvc/llvm-project?rev=88792&view=rev
Log:
Add the name to the rtti data structure.

Modified:
    cfe/trunk/lib/CodeGen/CGRtti.cpp

Modified: cfe/trunk/lib/CodeGen/CGRtti.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGRtti.cpp?rev=88792&r1=88791&r2=88792&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGRtti.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGRtti.cpp Sat Nov 14 08:25:18 2009
@@ -15,7 +15,38 @@
 using namespace clang;
 using namespace CodeGen;
 
+class RttiBuilder {
+  CodeGenModule &CGM;  // Per-module state.
+  llvm::LLVMContext &VMContext;
+  const llvm::Type *Int8PtrTy;
+public:
+  RttiBuilder(CodeGenModule &cgm)
+    : CGM(cgm), VMContext(cgm.getModule().getContext()),
+      Int8PtrTy(llvm::Type::getInt8PtrTy(VMContext)) { }
+
+  llvm::Constant *BuildName(const CXXRecordDecl *RD) {
+    llvm::SmallString<256> OutName;
+    llvm::raw_svector_ostream Out(OutName);
+    mangleCXXRttiName(CGM.getMangleContext(),
+                      CGM.getContext().getTagDeclType(RD), Out);
+  
+    llvm::GlobalVariable::LinkageTypes linktype;
+    linktype = llvm::GlobalValue::LinkOnceODRLinkage;
+
+    llvm::Constant *C;
+    C = llvm::ConstantArray::get(VMContext, Out.str().substr(4));
+    
+    llvm::Constant *s = new llvm::GlobalVariable(CGM.getModule(), C->getType(),
+                                                 true, linktype, C,
+                                                 Out.str());
+    s = llvm::ConstantExpr::getBitCast(s, Int8PtrTy);
+    return s;
+  };
+};
+
 llvm::Constant *CodeGenModule::GenerateRtti(const CXXRecordDecl *RD) {
+  RttiBuilder b(*this);
+
   const llvm::Type *Int8PtrTy = llvm::Type::getInt8PtrTy(VMContext);
 
   if (!getContext().getLangOptions().Rtti)
@@ -26,14 +57,14 @@
   mangleCXXRtti(getMangleContext(), Context.getTagDeclType(RD), Out);
   
   llvm::GlobalVariable::LinkageTypes linktype;
-  linktype = llvm::GlobalValue::WeakAnyLinkage;
+  linktype = llvm::GlobalValue::LinkOnceODRLinkage;
   std::vector<llvm::Constant *> info;
   // assert(0 && "FIXME: implement rtti descriptor");
   // FIXME: descriptor
   info.push_back(llvm::Constant::getNullValue(Int8PtrTy));
-  // assert(0 && "FIXME: implement rtti ts");
-  // FIXME: TS
-  info.push_back(llvm::Constant::getNullValue(Int8PtrTy));
+  info.push_back(b.BuildName(RD));
+
+  // FIXME: rest of rtti bits
 
   llvm::Constant *C;
   llvm::ArrayType *type = llvm::ArrayType::get(Int8PtrTy, info.size());