src/hotspot/cpu/aarch64/vtableStubs_aarch64.cpp

rev 48518 : 8196136: AArch64: Correct register use in patch for JDK-8195685
Summary: itable stubs must not use java argument registers as scratch registers
Reviewed-by: duke

@@ -143,13 +143,13 @@
   // Entry arguments:
   //  rscratch2: CompiledICHolder
   //  j_rarg0: Receiver
 
 
-  // Most registers are in use; we'll use r0, rmethod, r10, r11
+  // Most registers are in use; we'll use r19, rmethod, r10, r11
   const Register recv_klass_reg     = r10;
-  const Register holder_klass_reg   = r0; // declaring interface klass (DECC)
+  const Register holder_klass_reg   = r19; // declaring interface klass (DECC)
   const Register resolved_klass_reg = rmethod; // resolved interface klass (REFC)
   const Register temp_reg           = r11;
   const Register icholder_reg       = rscratch2;
 
   Label L_no_such_interface;