--- a/hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Mon Dec 19 02:33:30 2016 -0800
+++ b/hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Mon Dec 19 06:25:12 2016 -0800
@@ -474,7 +474,7 @@
       regs[i].set_bad();
       break;
     case T_LONG:
-      assert(sig_bt[i + 1] == T_VOID, "expecting half");
+      assert((i + 1) < total_args_passed && sig_bt[i + 1] == T_VOID, "expecting half");
       // fall through
     case T_OBJECT:
     case T_ARRAY:
@@ -495,7 +495,7 @@
       }
       break;
     case T_DOUBLE:
-      assert(sig_bt[i + 1] == T_VOID, "expecting half");
+      assert((i + 1) < total_args_passed && sig_bt[i + 1] == T_VOID, "expecting half");
       if (fp_args < Argument::n_float_register_parameters_j) {
         regs[i].set2(FP_ArgReg[fp_args++]->as_VMReg());
       } else {
@@ -1014,7 +1014,7 @@
         }
         break;
       case T_LONG:
-        assert(sig_bt[i + 1] == T_VOID, "expecting half");
+        assert((i + 1) < total_args_passed && sig_bt[i + 1] == T_VOID, "expecting half");
         // fall through
       case T_OBJECT:
       case T_ARRAY:
@@ -1045,7 +1045,7 @@
         }
         break;
       case T_DOUBLE:
-        assert(sig_bt[i + 1] == T_VOID, "expecting half");
+        assert((i + 1) < total_args_passed && sig_bt[i + 1] == T_VOID, "expecting half");
         if (fp_args < Argument::n_float_register_parameters_c) {
           regs[i].set2(FP_ArgReg[fp_args++]->as_VMReg());
 #ifdef _WIN64