7192167: JSR 292: C1 has old broken code which needs to be removed

Reviewed-by: kvn, roland, jrose

src/share/vm/c1/c1_GraphBuilder.cpp

@@ -1646,10 +1646,6 @@ Dependencies* GraphBuilder::dependency_recorder() const {
 
 
 void GraphBuilder::invoke(Bytecodes::Code code) {
-  const bool has_receiver =
-    code == Bytecodes::_invokespecial   ||
-    code == Bytecodes::_invokevirtual   ||
-    code == Bytecodes::_invokeinterface;
   const bool is_invokedynamic = (code == Bytecodes::_invokedynamic);
 
   bool will_link;
@@ -1690,8 +1686,12 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
   // convert them directly to an invokespecial or invokestatic.
   if (target->is_loaded() && !target->is_abstract() && target->can_be_statically_bound()) {
     switch (bc_raw) {
-    case Bytecodes::_invokevirtual:  code = Bytecodes::_invokespecial;  break;
-    case Bytecodes::_invokehandle:   code = Bytecodes::_invokestatic;   break;
+    case Bytecodes::_invokevirtual:
+      code = Bytecodes::_invokespecial;
+      break;
+    case Bytecodes::_invokehandle:
+      code = target->is_static() ? Bytecodes::_invokestatic : Bytecodes::_invokespecial;
+      break;
     }
   }
 
@@ -1878,11 +1878,13 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
   // inlining not successful => standard invoke
   bool is_loaded = target->is_loaded();
   ValueType* result_type = as_ValueType(target->return_type());
+  ValueStack* state_before = copy_state_exhandling();
 
-  // We require the debug info to be the "state before" because
-  // invokedynamics may deoptimize.
-  ValueStack* state_before = is_invokedynamic ? copy_state_before() : copy_state_exhandling();
-
+  // The bytecode (code) might change in this method so we are checking this very late.
+  const bool has_receiver =
+    code == Bytecodes::_invokespecial   ||
+    code == Bytecodes::_invokevirtual   ||
+    code == Bytecodes::_invokeinterface;
   Values* args = state()->pop_arguments(target->arg_size_no_receiver());
   Value recv = has_receiver ? apop() : NULL;
   int vtable_index = methodOopDesc::invalid_vtable_index;

src/share/vm/c1/c1_Instruction.cpp

@@ -369,9 +369,6 @@ Invoke::Invoke(Bytecodes::Code code, ValueType* result_type, Value recv, Values*
   _signature = new BasicTypeList(number_of_arguments() + (has_receiver() ? 1 : 0));
   if (has_receiver()) {
     _signature->append(as_BasicType(receiver()->type()));
-  } else if (is_invokedynamic()) {
-    // Add the synthetic MethodHandle argument to the signature.
-    _signature->append(T_OBJECT);
   }
   for (int i = 0; i < number_of_arguments(); i++) {
     ValueType* t = argument_at(i)->type();

src/share/vm/c1/c1_LIRAssembler.cpp

@@ -448,10 +448,10 @@ void LIR_Assembler::emit_call(LIR_OpJavaCall* op) {
 
   switch (op->code()) {
   case lir_static_call:
+  case lir_dynamic_call:
     call(op, relocInfo::static_call_type);
     break;
   case lir_optvirtual_call:
-  case lir_dynamic_call:
     call(op, relocInfo::opt_virtual_call_type);
     break;
   case lir_icvirtual_call:
@@ -460,7 +460,9 @@ void LIR_Assembler::emit_call(LIR_OpJavaCall* op) {
   case lir_virtual_call:
     vtable_call(op);
     break;
-  default: ShouldNotReachHere();
+  default:
+    fatal(err_msg_res("unexpected op code: %s", op->name()));
+    break;
   }
 
   // JSR 292

src/share/vm/c1/c1_LIRGenerator.cpp

@@ -920,7 +920,8 @@ LIR_Opr LIRGenerator::round_item(LIR_Opr opr) {
 
 
 LIR_Opr LIRGenerator::force_to_spill(LIR_Opr value, BasicType t) {
-  assert(type2size[t] == type2size[value->type()], "size mismatch");
+  assert(type2size[t] == type2size[value->type()],
+         err_msg_res("size mismatch: t=%s, value->type()=%s", type2name(t), type2name(value->type())));
   if (!value->is_register()) {
     // force into a register
     LIR_Opr r = new_register(value->type());
@@ -2662,8 +2663,9 @@ void LIRGenerator::do_OsrEntry(OsrEntry* x) {
 
 
 void LIRGenerator::invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list) {
-  int i = (x->has_receiver() || x->is_invokedynamic()) ? 1 : 0;
-  for (; i < args->length(); i++) {
+  assert(args->length() == arg_list->length(),
+         err_msg_res("args=%d, arg_list=%d", args->length(), arg_list->length()));
+  for (int i = x->has_receiver() ? 1 : 0; i < args->length(); i++) {
     LIRItem* param = args->at(i);
     LIR_Opr loc = arg_list->at(i);
     if (loc->is_register()) {
@@ -2703,15 +2705,9 @@ LIRItemList* LIRGenerator::invoke_visit_arguments(Invoke* x) {
     LIRItem* receiver = new LIRItem(x->receiver(), this);
     argument_items->append(receiver);
   }
-  if (x->is_invokedynamic()) {
-    // Insert a dummy for the synthetic MethodHandle argument.
-    argument_items->append(NULL);
-  }
-  int idx = x->has_receiver() ? 1 : 0;
   for (int i = 0; i < x->number_of_arguments(); i++) {
     LIRItem* param = new LIRItem(x->argument_at(i), this);
     argument_items->append(param);
-    idx += (param->type()->is_double_word() ? 2 : 1);
   }
   return argument_items;
 }
@@ -2756,9 +2752,6 @@ void LIRGenerator::do_Invoke(Invoke* x) {
 
   CodeEmitInfo* info = state_for(x, x->state());
 
-  // invokedynamics can deoptimize.
-  CodeEmitInfo* deopt_info = x->is_invokedynamic() ? state_for(x, x->state_before()) : NULL;
-
   invoke_load_arguments(x, args, arg_list);
 
   if (x->has_receiver()) {
@@ -2807,41 +2800,8 @@ void LIRGenerator::do_Invoke(Invoke* x) {
       }
       break;
     case Bytecodes::_invokedynamic: {
-      ciBytecodeStream bcs(x->scope()->method());
-      bcs.force_bci(x->state()->bci());
-      assert(bcs.cur_bc() == Bytecodes::_invokedynamic, "wrong stream");
-      ciCPCache* cpcache = bcs.get_cpcache();
-
-      // Get CallSite offset from constant pool cache pointer.
-      int index = bcs.get_method_index();
-      size_t call_site_offset = cpcache->get_f1_offset(index);
-
-      // Load CallSite object from constant pool cache.
-      LIR_Opr call_site = new_register(objectType);
-      __ oop2reg(cpcache->constant_encoding(), call_site);
-      __ move_wide(new LIR_Address(call_site, call_site_offset, T_OBJECT), call_site);
-
-      // If this invokedynamic call site hasn't been executed yet in
-      // the interpreter, the CallSite object in the constant pool
-      // cache is still null and we need to deoptimize.
-      if (cpcache->is_f1_null_at(index)) {
-        // Only deoptimize if the CallSite object is still null; we don't
-        // recompile methods in C1 after deoptimization so this call site
-        // might be resolved the next time we execute it after OSR.
-        DeoptimizeStub* deopt_stub = new DeoptimizeStub(deopt_info);
-        __ cmp(lir_cond_equal, call_site, LIR_OprFact::oopConst(NULL));
-        __ branch(lir_cond_equal, T_OBJECT, deopt_stub);
-      }
-
-      // Use the receiver register for the synthetic MethodHandle
-      // argument.
-      receiver = LIR_Assembler::receiverOpr();
-
-      // Load target MethodHandle from CallSite object.
-      __ load(new LIR_Address(call_site, java_lang_invoke_CallSite::target_offset_in_bytes(), T_OBJECT), receiver);
-
       __ call_dynamic(target, receiver, result_register,
-                      SharedRuntime::get_resolve_opt_virtual_call_stub(),
+                      SharedRuntime::get_resolve_static_call_stub(),
                       arg_list, info);
       break;
     }

src/share/vm/opto/callGenerator.cpp

@@ -158,74 +158,6 @@ JVMState* DirectCallGenerator::generate(JVMState* jvms) {
   return kit.transfer_exceptions_into_jvms();
 }
 
-//---------------------------DynamicCallGenerator-----------------------------
-// Internal class which handles all out-of-line invokedynamic calls.
-class DynamicCallGenerator : public CallGenerator {
-public:
-  DynamicCallGenerator(ciMethod* method)
-    : CallGenerator(method)
-  {
-  }
-  virtual JVMState* generate(JVMState* jvms);
-};
-
-JVMState* DynamicCallGenerator::generate(JVMState* jvms) {
-  GraphKit kit(jvms);
-  Compile* C = kit.C;
-  PhaseGVN& gvn = kit.gvn();
-
-  if (C->log() != NULL) {
-    C->log()->elem("dynamic_call bci='%d'", jvms->bci());
-  }
-
-  // Get the constant pool cache from the caller class.
-  ciMethod* caller_method = jvms->method();
-  ciBytecodeStream str(caller_method);
-  str.force_bci(jvms->bci());  // Set the stream to the invokedynamic bci.
-  assert(str.cur_bc() == Bytecodes::_invokedynamic, "wrong place to issue a dynamic call!");
-  ciCPCache* cpcache = str.get_cpcache();
-
-  // Get the offset of the CallSite from the constant pool cache
-  // pointer.
-  int index = str.get_method_index();
-  size_t call_site_offset = cpcache->get_f1_offset(index);
-
-  // Load the CallSite object from the constant pool cache.
-  const TypeOopPtr* cpcache_type   = TypeOopPtr::make_from_constant(cpcache);  // returns TypeAryPtr of type T_OBJECT
-  const TypeOopPtr* call_site_type = TypeOopPtr::make_from_klass(C->env()->CallSite_klass());
-  Node* cpcache_adr   = kit.makecon(cpcache_type);
-  Node* call_site_adr = kit.basic_plus_adr(cpcache_adr, call_site_offset);
-  // The oops in the constant pool cache are not compressed; load then as raw pointers.
-  Node* call_site     = kit.make_load(kit.control(), call_site_adr, call_site_type, T_ADDRESS, Compile::AliasIdxRaw);
-
-  // Load the target MethodHandle from the CallSite object.
-  const TypeOopPtr* target_type = TypeOopPtr::make_from_klass(C->env()->MethodHandle_klass());
-  Node* target_mh_adr = kit.basic_plus_adr(call_site, java_lang_invoke_CallSite::target_offset_in_bytes());
-  Node* target_mh     = kit.make_load(kit.control(), target_mh_adr, target_type, T_OBJECT);
-
-  address resolve_stub = SharedRuntime::get_resolve_opt_virtual_call_stub();
-
-  CallStaticJavaNode* call = new (C, tf()->domain()->cnt()) CallStaticJavaNode(tf(), resolve_stub, method(), kit.bci());
-  // invokedynamic is treated as an optimized invokevirtual.
-  call->set_optimized_virtual(true);
-  // Take extra care (in the presence of argument motion) not to trash the SP:
-  call->set_method_handle_invoke(true);
-
-  // Pass the target MethodHandle as first argument and shift the
-  // other arguments.
-  call->init_req(0 + TypeFunc::Parms, target_mh);
-  uint nargs = call->method()->arg_size();
-  for (uint i = 1; i < nargs; i++) {
-    Node* arg = kit.argument(i - 1);
-    call->init_req(i + TypeFunc::Parms, arg);
-  }
-
-  kit.set_edges_for_java_call(call);
-  Node* ret = kit.set_results_for_java_call(call);
-  kit.push_node(method()->return_type()->basic_type(), ret);
-  return kit.transfer_exceptions_into_jvms();
-}
-
 //--------------------------VirtualCallGenerator------------------------------
 // Internal class which handles all out-of-line calls checking receiver type.
 class VirtualCallGenerator : public CallGenerator {
@@ -328,12 +260,6 @@ CallGenerator* CallGenerator::for_virtual_call(ciMethod* m, int vtable_index) {
   return new VirtualCallGenerator(m, vtable_index);
 }
 
-CallGenerator* CallGenerator::for_dynamic_call(ciMethod* m) {
-  assert(m->is_compiled_lambda_form(), "for_dynamic_call mismatch");
-  //@@ FIXME: this should be done via a direct call
-  return new DynamicCallGenerator(m);
-}
-
 // Allow inlining decisions to be delayed
 class LateInlineCallGenerator : public DirectCallGenerator {
   CallGenerator* _inline_cg;
@@ -347,7 +273,7 @@ class LateInlineCallGenerator : public DirectCallGenerator {
   // Convert the CallStaticJava into an inline
   virtual void do_late_inline();
 
-  JVMState* generate(JVMState* jvms) {
+  virtual JVMState* generate(JVMState* jvms) {
     // Record that this call site should be revisited once the main
     // parse is finished.
     Compile::current()->add_late_inline(this);