6969574: invokedynamic call sites deoptimize instead of executing

Reviewed-by: kvn

hotspot/src/share/vm/ci/ciEnv.cpp

@@ -728,8 +728,8 @@ ciMethod* ciEnv::get_fake_invokedynamic_method_impl(constantPoolHandle cpool,
   }
 
   // Get the invoker methodOop from the constant pool.
-  intptr_t f2_value = cpool->cache()->main_entry_at(index)->f2();
-  methodOop signature_invoker = methodOop(f2_value);
+  oop f1_value = cpool->cache()->main_entry_at(index)->f1();
+  methodOop signature_invoker = methodOop(f1_value);
   assert(signature_invoker != NULL && signature_invoker->is_method() && signature_invoker->is_method_handle_invoke(),
          "correct result from LinkResolver::resolve_invokedynamic");
 

hotspot/src/share/vm/ci/ciMethod.cpp

@@ -694,30 +694,21 @@ int ciMethod::scale_count(int count, float prof_factor) {
 // ------------------------------------------------------------------
 // ciMethod::is_method_handle_invoke
 //
-// Return true if the method is a MethodHandle target.
+// Return true if the method is an instance of one of the two
+// signature-polymorphic MethodHandle methods, invokeExact or invokeGeneric.
 bool ciMethod::is_method_handle_invoke() const {
-  bool flag = (holder()->name() == ciSymbol::java_dyn_MethodHandle() &&
-               methodOopDesc::is_method_handle_invoke_name(name()->sid()));
-#ifdef ASSERT
-  if (is_loaded()) {
-    bool flag2 = ((flags().as_int() & JVM_MH_INVOKE_BITS) == JVM_MH_INVOKE_BITS);
-    {
-      VM_ENTRY_MARK;
-      bool flag3 = get_methodOop()->is_method_handle_invoke();
-      assert(flag2 == flag3, "consistent");
-      assert(flag  == flag3, "consistent");
-    }
-  }
-#endif //ASSERT
-  return flag;
+  if (!is_loaded())  return false;
+  VM_ENTRY_MARK;
+  return get_methodOop()->is_method_handle_invoke();
 }
 
 // ------------------------------------------------------------------
 // ciMethod::is_method_handle_adapter
 //
 // Return true if the method is a generated MethodHandle adapter.
+// These are built by MethodHandleCompiler.
 bool ciMethod::is_method_handle_adapter() const {
-  check_is_loaded();
+  if (!is_loaded())  return false;
   VM_ENTRY_MARK;
   return get_methodOop()->is_method_handle_adapter();
 }

hotspot/src/share/vm/oops/cpCacheOop.cpp

@@ -168,7 +168,7 @@ void ConstantPoolCacheEntry::set_method(Bytecodes::Code invoke_code,
       set_f1(method());
       needs_vfinal_flag = false;  // _f2 is not an oop
       assert(!is_vfinal(), "f2 not an oop");
-      byte_no = 1;  // just a formality
+      byte_no = 1;  // coordinate this with bytecode_number & is_resolved
       break;
 
     case Bytecodes::_invokespecial:

hotspot/src/share/vm/oops/cpCacheOop.hpp

@@ -211,6 +211,7 @@ class ConstantPoolCacheEntry VALUE_OBJ_CLASS_SPEC {
       case Bytecodes::_getfield        :    // fall through
       case Bytecodes::_invokespecial   :    // fall through
       case Bytecodes::_invokestatic    :    // fall through
+      case Bytecodes::_invokedynamic   :    // fall through
       case Bytecodes::_invokeinterface : return 1;
       case Bytecodes::_putstatic       :    // fall through
       case Bytecodes::_putfield        :    // fall through

hotspot/src/share/vm/oops/methodOop.cpp

@@ -851,9 +851,15 @@ jint* methodOopDesc::method_type_offsets_chain() {
 // MethodHandleCompiler.
 // Must be consistent with MethodHandleCompiler::get_method_oop().
 bool methodOopDesc::is_method_handle_adapter() const {
-  return (is_method_handle_invoke_name(name()) &&
-          is_synthetic() &&
-          MethodHandleCompiler::klass_is_method_handle_adapter_holder(method_holder()));
+  if (is_synthetic() &&
+      !is_native() &&   // has code from MethodHandleCompiler
+      is_method_handle_invoke_name(name()) &&
+      MethodHandleCompiler::klass_is_method_handle_adapter_holder(method_holder())) {
+    assert(!is_method_handle_invoke(), "disjoint");
+    return true;
+  } else {
+    return false;
+  }
 }
 
 methodHandle methodOopDesc::make_invoke_method(KlassHandle holder,

hotspot/src/share/vm/prims/methodHandleWalk.cpp

@@ -738,6 +738,12 @@ void MethodHandleCompiler::emit_bc(Bytecodes::Code op, int index) {
 
   // bi
   case Bytecodes::_ldc:
+    assert(Bytecodes::format_bits(op, false) == (Bytecodes::_fmt_b|Bytecodes::_fmt_has_k), "wrong bytecode format");
+    assert((char) index == index, "index does not fit in 8-bit");
+    _bytecode.push(op);
+    _bytecode.push(index);
+    break;
+
   case Bytecodes::_iload:
   case Bytecodes::_lload:
   case Bytecodes::_fload:
@@ -754,7 +760,8 @@ void MethodHandleCompiler::emit_bc(Bytecodes::Code op, int index) {
     _bytecode.push(index);
     break;
 
-  // bii
+  // bkk
+  case Bytecodes::_ldc_w:
   case Bytecodes::_ldc2_w:
   case Bytecodes::_checkcast:
     assert(Bytecodes::format_bits(op, false) == Bytecodes::_fmt_bkk, "wrong bytecode format");