diff --git a/gen/functions.cpp b/gen/functions.cpp
index a48b6d7724..9fc74e2d1c 100644
--- a/gen/functions.cpp
+++ b/gen/functions.cpp
@@ -90,28 +90,12 @@ llvm::FunctionType* DtoFunctionType(Type* type, Type* thistype, Type* nesttype,
                 llvm::AttrBuilder().addAttribute(llvm::Attributes::StructRet)
                 .addAttribute(llvm::Attributes::NoAlias)
 #endif
-            #if !STRUCTTHISREF
-                // In D2 where 'this' in structs is a reference, nocapture
-                // might not actually be applicable, even if it probably still
-                // is for all sane code from a high-level semantic standpoint.
-                // Specifying nocapture on a parameter but then passing it as a
-                // non-nocapture argument in a function call can lead to
-                // _silent_ miscompilations (especially in the GVN pass).
-#if LDC_LLVM_VER >= 303
-                .addAttribute(llvm::Attribute::NoCapture)
-#else
-                .addAttribute(llvm::Attributes::NoCapture)
-#endif
-            #endif
 #if LDC_LLVM_VER == 302
             )
 #endif
             );
 #else
             fty.arg_sret = new IrFuncTyArg(rt, true, StructRet | NoAlias
-            #if !STRUCTTHISREF
-                | NoCapture
-            #endif
             );
 #endif
             rt = Type::tvoid;
@@ -1010,9 +994,7 @@ void DtoDefineFunction(FuncDeclaration* fd)
         assert(thisvar);
 
         LLValue* thismem = thisvar;
-    #if STRUCTTHISREF
         if (!f->fty.arg_this->byref)
-    #endif
         {
             thismem = DtoRawAlloca(thisvar->getType(), 0, "this"); // FIXME: align?
             DtoStore(thisvar, thismem);
diff --git a/gen/toir.cpp b/gen/toir.cpp
index c12d336657..0fcad2a7be 100644
--- a/gen/toir.cpp
+++ b/gen/toir.cpp
@@ -1514,11 +1514,7 @@ DValue* ThisExp::toElem(IRState* p)
         } else
         if (vdparent != p->func()->decl) {
             Logger::println("nested this exp");
-#if STRUCTTHISREF
             return DtoNestedVariable(loc, type, vd, type->ty == Tstruct);
-#else
-            return DtoNestedVariable(loc, type, vd);
-#endif
         }
         else {
             Logger::println("normal this exp");
diff --git a/gen/typinf.cpp b/gen/typinf.cpp
index cb531eb1ef..f9df4a574b 100644
--- a/gen/typinf.cpp
+++ b/gen/typinf.cpp
@@ -640,13 +640,9 @@ void TypeInfoStructDeclaration::llvmDefine()
     {
         Scope sc;
         Parameters *arguments = new Parameters;
-#if STRUCTTHISREF
+
         // arg type is ref const T
         Parameter *arg = new Parameter(STCref, tc->constOf(), NULL, NULL);
-#else
-        // arg type is const T*
-        Parameter *arg = new Parameter(STCin, tc->pointerTo(), NULL, NULL);
-#endif
         arguments->push(arg);
         tfcmpptr = new TypeFunction(arguments, Type::tint32, 0, LINKd);
         tfcmpptr->mod = MODconst;