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comparison jvmci/jdk.vm.ci.hotspot.amd64/src/jdk/vm/ci/hotspot/amd64/AMD64HotSpotVMConfig.java @ 23679:b5557b757040

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fix HotSpotVMConfig startup performance (JDK-8159167)
author Doug Simon <doug.simon@oracle.com>
date Wed, 15 Jun 2016 00:00:41 +0200
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children 50465926fbeb
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23678:e86a0b0ba969 23679:b5557b757040
1 /*
2 * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package jdk.vm.ci.hotspot.amd64;
24
25 import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
26 import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
27
28 public class AMD64HotSpotVMConfig extends HotSpotVMConfigAccess {
29
30 public AMD64HotSpotVMConfig(HotSpotVMConfigStore config) {
31 super(config);
32 }
33
34 /**
35 * Maximum allowed size of allocated area for a frame.
36 */
37 public final int maxFrameSize = 16 * 1024;
38
39 public final boolean windowsOs = System.getProperty("os.name", "").startsWith("Windows");
40
41 public final boolean useCountLeadingZerosInstruction = getFlag("UseCountLeadingZerosInstruction", Boolean.class);
42 public final boolean useCountTrailingZerosInstruction = getFlag("UseCountTrailingZerosInstruction", Boolean.class);
43 public final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
44
45 // CPU capabilities
46 public final int useSSE = getFlag("UseSSE", Integer.class);
47 public final int useAVX = getFlag("UseAVX", Integer.class);
48
49 public final long vmVersionFeatures = getFieldValue("VM_Version::_cpuFeatures", Long.class, "int");
50
51 // CPU feature flags
52 public final long amd64CX8 = getConstant("VM_Version::CPU_CX8", Long.class);
53 public final long amd64CMOV = getConstant("VM_Version::CPU_CMOV", Long.class);
54 public final long amd64FXSR = getConstant("VM_Version::CPU_FXSR", Long.class);
55 public final long amd64HT = getConstant("VM_Version::CPU_HT", Long.class);
56 public final long amd64MMX = getConstant("VM_Version::CPU_MMX", Long.class);
57 public final long amd643DNOWPREFETCH = getConstant("VM_Version::CPU_3DNOW_PREFETCH", Long.class);
58 public final long amd64SSE = getConstant("VM_Version::CPU_SSE", Long.class);
59 public final long amd64SSE2 = getConstant("VM_Version::CPU_SSE2", Long.class);
60 public final long amd64SSE3 = getConstant("VM_Version::CPU_SSE3", Long.class);
61 public final long amd64SSSE3 = getConstant("VM_Version::CPU_SSSE3", Long.class);
62 public final long amd64SSE4A = getConstant("VM_Version::CPU_SSE4A", Long.class);
63 public final long amd64SSE41 = getConstant("VM_Version::CPU_SSE4_1", Long.class);
64 public final long amd64SSE42 = getConstant("VM_Version::CPU_SSE4_2", Long.class);
65 public final long amd64POPCNT = getConstant("VM_Version::CPU_POPCNT", Long.class);
66 public final long amd64LZCNT = getConstant("VM_Version::CPU_LZCNT", Long.class);
67 public final long amd64TSC = getConstant("VM_Version::CPU_TSC", Long.class);
68 public final long amd64TSCINV = getConstant("VM_Version::CPU_TSCINV", Long.class);
69 public final long amd64AVX = getConstant("VM_Version::CPU_AVX", Long.class);
70 public final long amd64AVX2 = getConstant("VM_Version::CPU_AVX2", Long.class);
71 public final long amd64AES = getConstant("VM_Version::CPU_AES", Long.class);
72 public final long amd64ERMS = getConstant("VM_Version::CPU_ERMS", Long.class);
73 public final long amd64CLMUL = getConstant("VM_Version::CPU_CLMUL", Long.class);
74 public final long amd64BMI1 = getConstant("VM_Version::CPU_BMI1", Long.class);
75 public final long amd64BMI2 = getConstant("VM_Version::CPU_BMI2", Long.class);
76 public final long amd64RTM = getConstant("VM_Version::CPU_RTM", Long.class);
77 public final long amd64ADX = getConstant("VM_Version::CPU_ADX", Long.class);
78 }