7030715: JSR 292 JRuby test/test_super_call_site_caching.rb asserts with +DoEscapeAnalysis

Reviewed-by: twisti

src/share/vm/ci/bcEscapeAnalyzer.cpp

@@ -232,14 +232,7 @@ void BCEscapeAnalyzer::invoke(StateInfo &state, Bytecodes::Code code, ciMethod*
   }
 
   // compute size of arguments
-  int arg_size = target->arg_size();
-  if (code == Bytecodes::_invokedynamic) {
-    assert(!target->is_static(), "receiver explicit in method");
-    arg_size--;  // implicit, not really on stack
-  }
-  if (!target->is_loaded() && code == Bytecodes::_invokestatic) {
-    arg_size--;
-  }
+  int arg_size = target->invoke_arg_size(code);
   int arg_base = MAX2(state._stack_height - arg_size, 0);
 
   // direct recursive calls are skipped if they can be bound statically without introducing

src/share/vm/ci/ciMethod.hpp

@@ -127,7 +127,24 @@ class ciMethod : public ciObject {
   ciSignature* signature() const                 { return _signature; }
   ciType*      return_type() const               { return _signature->return_type(); }
   int          arg_size_no_receiver() const      { return _signature->size(); }
-  int          arg_size() const                  { return _signature->size() + (_flags.is_static() ? 0 : 1); }
+  // Can only be used on loaded ciMethods
+  int          arg_size() const                  {
+    check_is_loaded();
+    return _signature->size() + (_flags.is_static() ? 0 : 1);
+  }
+  // Report the number of elements on stack when invoking this method.
+  // This is different than the regular arg_size because invokdynamic
+  // has an implicit receiver.
+  int invoke_arg_size(Bytecodes::Code code) const {
+    int arg_size = _signature->size();
+    // Add a receiver argument, maybe:
+    if (code != Bytecodes::_invokestatic &&
+        code != Bytecodes::_invokedynamic) {
+      arg_size++;
+    }
+    return arg_size;
+  }
+
 
   // Method code and related information.
   address code()                                 { if (_code == NULL) load_code(); return _code; }

src/share/vm/opto/graphKit.cpp

@@ -1033,14 +1033,10 @@ bool GraphKit::compute_stack_effects(int& inputs, int& depth) {
       iter.reset_to_bci(bci());
       iter.next();
       ciMethod* method = iter.get_method(ignore);
-      inputs = method->arg_size_no_receiver();
-      // Add a receiver argument, maybe:
-      if (code != Bytecodes::_invokestatic &&
-          code != Bytecodes::_invokedynamic)
-        inputs += 1;
       // (Do not use ciMethod::arg_size(), because
       // it might be an unloaded method, which doesn't
       // know whether it is static or not.)
+      inputs = method->invoke_arg_size(code);
       int size = method->return_type()->size();
       depth = size - inputs;
     }