src/hotspot/share/runtime/sharedRuntime.cpp

@@ -1538,20 +1538,31 @@
 
 
 // resolve a static call and patch code
 JRT_BLOCK_ENTRY(address, SharedRuntime::resolve_static_call_C(JavaThread *thread ))
   methodHandle callee_method;
-  JRT_BLOCK
+  JRT_BLOCK {
+    RegisterMap cbl_map(thread, false);
+    frame caller_frame = thread->last_frame().sender(&cbl_map);
+    CodeBlob* caller_cb = caller_frame.cb();
+    guarantee(caller_cb != NULL && caller_cb->is_compiled(), "must be called from compiled method");
+    CompiledMethod* caller_nm = caller_cb->as_compiled_method_or_null();
+    SimpleScopeDesc ssd(caller_nm, caller_frame.pc());
+    Bytecode bc(ssd.method(), ssd.method()->bcp_from(ssd.bci()));
+    if (bc.code() == Bytecodes::_if_acmpeq || bc.code() == Bytecodes::_if_acmpne) {
+      SystemDictionary::ValueBootstrapMethods_klass()->initialize(CHECK_NULL);
+      callee_method = SystemDictionary::ValueBootstrapMethods_klass()->find_method(vmSymbols::isSubstitutable_name(), vmSymbols::object_object_boolean_signature());
+    } else {
     callee_method = SharedRuntime::resolve_helper(thread, false, false, CHECK_NULL);
+    }
     thread->set_vm_result_2(callee_method());
-  JRT_BLOCK_END
+  } JRT_BLOCK_END
   // return compiled code entry point after potential safepoints
   assert(callee_method->verified_code_entry() != NULL, " Jump to zero!");
   return callee_method->verified_code_entry();
 JRT_END
 
-
 // resolve virtual call and update inline cache to monomorphic
 JRT_BLOCK_ENTRY(address, SharedRuntime::resolve_virtual_call_C(JavaThread *thread ))
   methodHandle callee_method;
   JRT_BLOCK
     callee_method = SharedRuntime::resolve_helper(thread, true, false, CHECK_NULL);