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6953144: Tiered compilation

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Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation.

Reviewed-by: kvn, never, phh, twisti
This commit is contained in:
Igor Veresov 2010-09-03 17:51:07 -07:00
parent 6e78f6cb4b
commit 2c66a6c3fd
104 changed files with 7720 additions and 1701 deletions
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64
hotspot/src/share/vm/runtime/simpleThresholdPolicy.inline.hpp Normal file
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/*
* Copyright (c) 2001, 2010, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
template<CompLevel level>
bool SimpleThresholdPolicy::call_predicate_helper(int i, int b, double scale) {
switch(level) {
case CompLevel_none:
case CompLevel_limited_profile:
return (i > Tier3InvocationThreshold * scale) ||
(i > Tier3MinInvocationThreshold * scale && i + b > Tier3CompileThreshold * scale);
case CompLevel_full_profile:
return (i > Tier4InvocationThreshold * scale) ||
(i > Tier4MinInvocationThreshold * scale && i + b > Tier4CompileThreshold * scale);
}
return true;
}
template<CompLevel level>
bool SimpleThresholdPolicy::loop_predicate_helper(int i, int b, double scale) {
switch(level) {
case CompLevel_none:
case CompLevel_limited_profile:
return b > Tier3BackEdgeThreshold * scale;
case CompLevel_full_profile:
return b > Tier4BackEdgeThreshold * scale;
}
return true;
}
// Simple methods are as good being compiled with C1 as C2.
// Determine if a given method is such a case.
bool SimpleThresholdPolicy::is_trivial(methodOop method) {
if (method->is_accessor()) return true;
if (method->code() != NULL) {
methodDataOop mdo = method->method_data();
if (mdo != NULL && mdo->num_loops() == 0 &&
(method->code_size() < 5 || (mdo->num_blocks() < 4) && (method->code_size() < 15))) {
return !mdo->would_profile();
}
}
return false;
}