8299608: Add Register + imm32 orq to x86_64 assembler

Reviewed-by: shade, sviswanathan, kvn

Author: fisk

src/hotspot/cpu/x86/assembler_x86.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -13453,6 +13453,11 @@ void Assembler::orq(Register dst, int32_t imm32) {
   emit_arith(0x81, 0xC8, dst, imm32);
 }
 
+void Assembler::orq_imm32(Register dst, int32_t imm32) {
+  (void) prefixq_and_encode(dst->encoding());
+  emit_arith_imm32(0x81, 0xC8, dst, imm32);
+}
+
 void Assembler::orq(Register dst, Address src) {
   InstructionMark im(this);
   emit_int16(get_prefixq(src, dst), 0x0B);

src/hotspot/cpu/x86/assembler_x86.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -1736,6 +1736,7 @@ class Assembler : public AbstractAssembler  {
   void orq(Address dst, int32_t imm32);
   void orq(Address dst, Register src);
   void orq(Register dst, int32_t imm32);
+  void orq_imm32(Register dst, int32_t imm32);
   void orq(Register dst, Address src);
   void orq(Register dst, Register src);