src/cpu/ppc/vm/stubRoutines_ppc_64.hpp

rev 8691 : 8131048: ppc: implement CRC32 intrinsic
Reviewed-by: kvn, simonis
Contributed-by: lutz.schmidt@sap.com

*** 1,8 ****
  /*
!  * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
!  * Copyright 2012, 2013 SAP AG. 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,8 ----
  /*
!  * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
!  * Copyright 2012, 2015 SAP AG. 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 35,40 ****
--- 35,64 ----
  enum platform_dependent_constants {
    code_size1 = 20000,          // simply increase if too small (assembler will crash if too small)
    code_size2 = 20000           // simply increase if too small (assembler will crash if too small)
  };
  
+ // CRC32 Intrinsics.
+ #define CRC32_COLUMN_SIZE 256
+ #define CRC32_BYFOUR
+ #ifdef  CRC32_BYFOUR
+   #define CRC32_TABLES 8
+ #else
+   #define CRC32_TABLES 1
+ #endif
+ 
+ class ppc64 {
+  friend class StubGenerator;
+ 
+  private:
+ 
+   // CRC32 Intrinsics.
+   static juint _crc_table[CRC32_TABLES][CRC32_COLUMN_SIZE];
+ 
+  public:
+ 
+   // CRC32 Intrinsics.
+   static void generate_load_crc_table_addr(MacroAssembler* masm, Register table);
+ 
+ };
+ 
  #endif // CPU_PPC_VM_STUBROUTINES_PPC_64_HPP