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comparison src/cpu/x86/vm/vtableStubs_x86_64.cpp @ 1783:d5d065957597

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6953144: Tiered compilation Summary: Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation. Reviewed-by: kvn, never, phh, twisti
author iveresov
date Fri, 03 Sep 2010 17:51:07 -0700
parents c18cbe5936b8
children f95d63e2154a
comparison
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1782:f353275af40e 1783:d5d065957597
1 /* 1 /*
2 * Copyright (c) 2003, 2009, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
207 // Vtable stub size 207 // Vtable stub size
208 return (DebugVtables ? 512 : 24) + (CountCompiledCalls ? 13 : 0) + 208 return (DebugVtables ? 512 : 24) + (CountCompiledCalls ? 13 : 0) +
209 (UseCompressedOops ? 16 : 0); // 1 leaq can be 3 bytes + 1 long 209 (UseCompressedOops ? 16 : 0); // 1 leaq can be 3 bytes + 1 long
210 } else { 210 } else {
211 // Itable stub size 211 // Itable stub size
212 return (DebugVtables ? 512 : 72) + (CountCompiledCalls ? 13 : 0) + 212 return (DebugVtables ? 512 : 74) + (CountCompiledCalls ? 13 : 0) +
213 (UseCompressedOops ? 32 : 0); // 2 leaqs 213 (UseCompressedOops ? 32 : 0); // 2 leaqs
214 } 214 }
215 // In order to tune these parameters, run the JVM with VM options 215 // In order to tune these parameters, run the JVM with VM options
216 // +PrintMiscellaneous and +WizardMode to see information about 216 // +PrintMiscellaneous and +WizardMode to see information about
217 // actual itable stubs. Look for lines like this: 217 // actual itable stubs. Look for lines like this: