archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-26 22:34:27 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32

Browse source 
Add intrinsics using new instruction to interpreter, C1, C2, for suitable x86; add test

Reviewed-by: kvn, twisti
This commit is contained in:
David Chase 2013-07-02 20:42:12 -04:00
parent 386e37ba15
commit 9a359984c2
41 changed files with 1487 additions and 173 deletions
Download patch file Download diff file Expand all files Collapse all files

16
hotspot/src/share/vm/interpreter/interpreter.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2013, 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
@ -195,6 +195,17 @@ AbstractInterpreter::MethodKind AbstractInterpreter::method_kind(methodHandle m)
return kind;
}
#ifndef CC_INTERP
if (UseCRC32Intrinsics && m->is_native()) {
// Use optimized stub code for CRC32 native methods.
switch (m->intrinsic_id()) {
case vmIntrinsics::_updateCRC32 : return java_util_zip_CRC32_update;
case vmIntrinsics::_updateBytesCRC32 : return java_util_zip_CRC32_updateBytes;
case vmIntrinsics::_updateByteBufferCRC32 : return java_util_zip_CRC32_updateByteBuffer;
}
}
#endif
// Native method?
// Note: This test must come _before_ the test for intrinsic
// methods. See also comments below.
@ -297,6 +308,9 @@ void AbstractInterpreter::print_method_kind(MethodKind kind) {
case java_lang_math_sqrt : tty->print("java_lang_math_sqrt" ); break;
case java_lang_math_log : tty->print("java_lang_math_log" ); break;
case java_lang_math_log10 : tty->print("java_lang_math_log10" ); break;
case java_util_zip_CRC32_update : tty->print("java_util_zip_CRC32_update"); break;
case java_util_zip_CRC32_updateBytes : tty->print("java_util_zip_CRC32_updateBytes"); break;
case java_util_zip_CRC32_updateByteBuffer : tty->print("java_util_zip_CRC32_updateByteBuffer"); break;
default:
if (kind >= method_handle_invoke_FIRST &&
kind <= method_handle_invoke_LAST) {