src/hotspot/cpu/x86/c1_MacroAssembler_x86.cpp

BarrierSetC1

   if (C1Breakpoint)int3();
   // build frame
   verify_FPU(0, "method_entry");
 }
 
+void C1_MacroAssembler::load_parameter(int offset_in_words, Register reg) {
+  // rbp, + 0: link
+  //     + 1: return address
+  //     + 2: argument with offset 0
+  //     + 3: argument with offset 1
+  //     + 4: ...
+
+  movptr(reg, Address(rbp, (offset_in_words + 2) * BytesPerWord));
+}
 
 #ifndef PRODUCT
 
 void C1_MacroAssembler::verify_stack_oop(int stack_offset) {
   if (!VerifyOops) return;