src/cpu/ppc/vm/stubRoutines_ppc_64.hpp

rev 8685 : 8131048: ppc: implement CRC32 intrinsic
Contributed-by: lutz.schmidt@sap.com

@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2012, 2013 SAP AG. All rights reserved.
+ * 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.

@@ -35,6 +35,30 @@
 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