don't introduce g.llvm_boxed_string_type_ptr, just use llvm_value_type_ptr

src/codegen/codegen.h

@@ -72,7 +72,7 @@ struct GlobalState {
     llvm::Type* llvm_str_type_ptr;
     llvm::Type* frame_info_type;
     llvm::Type* llvm_clfunction_type_ptr, *llvm_closure_type_ptr, *llvm_generator_type_ptr;
-    llvm::Type* llvm_module_type_ptr, *llvm_bool_type_ptr, *llvm_boxed_string_type_ptr;
+    llvm::Type* llvm_module_type_ptr, *llvm_bool_type_ptr;
     llvm::Type* llvm_excinfo_type;
     llvm::Type* i1, *i8, *i8_ptr, *i32, *i64, *void_, *double_;
     llvm::Type* vector_ptr;

src/codegen/irgen/irgenerator.cpp

@@ -1013,9 +1013,8 @@ private:
 
     CompilerVariable* evalStr(AST_Str* node, UnwindInfo unw_info) {
         if (node->str_type == AST_Str::STR) {
-            llvm::Value* rtn
-                = embedConstantPtr(irstate->getSourceInfo()->parent_module->getStringConstant(node->str_data),
-                                   g.llvm_boxed_string_type_ptr);
+            llvm::Value* rtn = embedConstantPtr(
+                irstate->getSourceInfo()->parent_module->getStringConstant(node->str_data), g.llvm_value_type_ptr);
 
             return new ConcreteCompilerVariable(STR, rtn, true);
 

src/codegen/runtime_hooks.cpp

@@ -153,9 +153,6 @@ void initGlobalFuncs(GlobalState& g) {
     g.frame_info_type = g.stdlib_module->getTypeByName("struct.pyston::FrameInfo");
     assert(g.frame_info_type);
 
-    g.llvm_boxed_string_type_ptr = g.stdlib_module->getTypeByName("class.pyston::BoxedString")->getPointerTo();
-    assert(g.llvm_boxed_string_type_ptr);
-
 #define GET(N) g.funcs.N = getFunc((void*)N, STRINGIFY(N))
 
     g.funcs.printf = addFunc((void*)printf, g.i8_ptr, true);