extra reg

Author: offamitkumar

src/hotspot/cpu/s390/c1_LIRAssembler_s390.cpp

@@ -2415,7 +2415,7 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
 void LIR_Assembler::type_profile_helper(Register mdo, ciMethodData *md, ciProfileData *data,
                                         Register recv, Register tmp1) {
   int mdp_offset = md->byte_offset_of_slot(data, in_ByteSize(0));
-  __ profile_receiver_type(recv, mdo, mdp_offset);
+  __ profile_receiver_type(recv, mdo, mdp_offset, tmp1);
 }
 
 void LIR_Assembler::setup_md_access(ciMethod* method, int bci,

src/hotspot/cpu/s390/interp_masm_s390.cpp

@@ -1267,7 +1267,7 @@ void InterpreterMacroAssembler::profile_virtual_call(Register receiver,
     test_method_data_pointer(mdp, profile_continue);
 
     // Record the receiver type.
-    profile_receiver_type(receiver, mdp, 0);
+    profile_receiver_type(receiver, mdp, 0, reg2);
 
     // The method data pointer needs to be updated to reflect the new target.
     update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size()));
@@ -1343,7 +1343,7 @@ void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass,
       mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
 
       // Record the object type.
-      profile_receiver_type(klass, mdp, 0);
+      profile_receiver_type(klass, mdp, 0, reg2);
     }
     update_mdp_by_constant(mdp, mdp_delta);
 

src/hotspot/cpu/s390/macroAssembler_s390.cpp

@@ -6779,8 +6779,8 @@ void MacroAssembler::load_on_condition_imm_64(Register dst, int64_t i2, branch_c
 // avoids grossly misrepresenting the profiles under concurrent updates. For speed,
 // counter updates are not atomic.
 //
-void MacroAssembler::profile_receiver_type(Register recv, Register mdp, int mdp_offset) {
-  const Register tmp0 = Z_R0; 
+void MacroAssembler::profile_receiver_type(Register recv, Register mdp, int mdp_offset, Register scratch) {
+  const Register tmp0 = scratch;
   const Register tmp1 = Z_R1;
   assert_different_registers(recv, mdp, tmp1, tmp0);
 

src/hotspot/cpu/s390/macroAssembler_s390.hpp

@@ -1112,7 +1112,7 @@ class MacroAssembler: public Assembler {
   void load_on_condition_imm_32(Register dst, int64_t i2, branch_condition cc);
   void load_on_condition_imm_64(Register dst, int64_t i2, branch_condition cc);
 
-  void profile_receiver_type(Register recv, Register mdp, int mdp_offset);
+  void profile_receiver_type(Register recv, Register mdp, int mdp_offset, Register tmp1);
 };
 
 #ifdef ASSERT