fix codegen on static variables which have multiple decl nodes. These

should be merged just like normal globals.  This fixes this testcase
that Anders provided:

static struct s a;
static struct s *ap1 = &a;
static struct s a =  { 10 };



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46661 91177308-0d34-0410-b5e6-96231b3b80d8

CodeGen/CodeGenModule.cpp

@@ -134,7 +134,7 @@ llvm::Constant *CodeGenModule::GetAddrOfGlobalVar(const VarDecl *D,
   const llvm::Type *Ty = getTypes().ConvertTypeForMem(D->getType());
 
   // Check to see if the global already exists.
-  llvm::GlobalVariable *GV = getModule().getGlobalVariable(D->getName());
+  llvm::GlobalVariable *GV = getModule().getGlobalVariable(D->getName(), true);
 
   // If it doesn't already exist, just create and return an entry.
   if (GV == 0) {