Mercurial > jdk8-mips64-public > hotspot / annotate
src/cpu/x86/vm/stubRoutines_x86.cpp@f90c822e73f8 (annotated)
src/cpu/x86/vm/stubRoutines_x86.cpp
Wed, 27 Apr 2016 01:25:04 +0800
- author
- aoqi
- date
- Wed, 27 Apr 2016 01:25:04 +0800
- changeset 0
- f90c822e73f8
- child 9788
- 44ef77ad417c
- permissions
- -rw-r--r--
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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #include "precompiled.hpp" |
| aoqi@0 | 26 | #include "runtime/deoptimization.hpp" |
| aoqi@0 | 27 | #include "runtime/frame.inline.hpp" |
| aoqi@0 | 28 | #include "runtime/stubRoutines.hpp" |
| aoqi@0 | 29 | #include "runtime/thread.inline.hpp" |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | // Implementation of the platform-specific part of StubRoutines - for |
| aoqi@0 | 32 | // a description of how to extend it, see the stubRoutines.hpp file. |
| aoqi@0 | 33 | |
| aoqi@0 | 34 | address StubRoutines::x86::_verify_mxcsr_entry = NULL; |
| aoqi@0 | 35 | address StubRoutines::x86::_key_shuffle_mask_addr = NULL; |
| aoqi@0 | 36 | |
| aoqi@0 | 37 | uint64_t StubRoutines::x86::_crc_by128_masks[] = |
| aoqi@0 | 38 | { |
| aoqi@0 | 39 | /* The fields in this structure are arranged so that they can be |
| aoqi@0 | 40 | * picked up two at a time with 128-bit loads. |
| aoqi@0 | 41 | * |
| aoqi@0 | 42 | * Because of flipped bit order for this CRC polynomials |
| aoqi@0 | 43 | * the constant for X**N is left-shifted by 1. This is because |
| aoqi@0 | 44 | * a 64 x 64 polynomial multiply produces a 127-bit result |
| aoqi@0 | 45 | * but the highest term is always aligned to bit 0 in the container. |
| aoqi@0 | 46 | * Pre-shifting by one fixes this, at the cost of potentially making |
| aoqi@0 | 47 | * the 32-bit constant no longer fit in a 32-bit container (thus the |
| aoqi@0 | 48 | * use of uint64_t, though this is also the size used by the carry- |
| aoqi@0 | 49 | * less multiply instruction. |
| aoqi@0 | 50 | * |
| aoqi@0 | 51 | * In addition, the flipped bit order and highest-term-at-least-bit |
| aoqi@0 | 52 | * multiply changes the constants used. The 96-bit result will be |
| aoqi@0 | 53 | * aligned to the high-term end of the target 128-bit container, |
| aoqi@0 | 54 | * not the low-term end; that is, instead of a 512-bit or 576-bit fold, |
| aoqi@0 | 55 | * instead it is a 480 (=512-32) or 544 (=512+64-32) bit fold. |
| aoqi@0 | 56 | * |
| aoqi@0 | 57 | * This cause additional problems in the 128-to-64-bit reduction; see the |
| aoqi@0 | 58 | * code for details. By storing a mask in the otherwise unused half of |
| aoqi@0 | 59 | * a 128-bit constant, bits can be cleared before multiplication without |
| aoqi@0 | 60 | * storing and reloading. Note that staying on a 128-bit datapath means |
| aoqi@0 | 61 | * that some data is uselessly stored and some unused data is intersected |
| aoqi@0 | 62 | * with an irrelevant constant. |
| aoqi@0 | 63 | */ |
| aoqi@0 | 64 | |
| aoqi@0 | 65 | ((uint64_t) 0xffffffffUL), /* low of K_M_64 */ |
| aoqi@0 | 66 | ((uint64_t) 0xb1e6b092U << 1), /* high of K_M_64 */ |
| aoqi@0 | 67 | ((uint64_t) 0xba8ccbe8U << 1), /* low of K_160_96 */ |
| aoqi@0 | 68 | ((uint64_t) 0x6655004fU << 1), /* high of K_160_96 */ |
| aoqi@0 | 69 | ((uint64_t) 0xaa2215eaU << 1), /* low of K_544_480 */ |
| aoqi@0 | 70 | ((uint64_t) 0xe3720acbU << 1) /* high of K_544_480 */ |
| aoqi@0 | 71 | }; |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | /** |
| aoqi@0 | 74 | * crc_table[] from jdk/src/share/native/java/util/zip/zlib-1.2.5/crc32.h |
| aoqi@0 | 75 | */ |
| aoqi@0 | 76 | juint StubRoutines::x86::_crc_table[] = |
| aoqi@0 | 77 | { |
| aoqi@0 | 78 | 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, |
| aoqi@0 | 79 | 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, |
| aoqi@0 | 80 | 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, |
| aoqi@0 | 81 | 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, |
| aoqi@0 | 82 | 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, |
| aoqi@0 | 83 | 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, |
| aoqi@0 | 84 | 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, |
| aoqi@0 | 85 | 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, |
| aoqi@0 | 86 | 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, |
| aoqi@0 | 87 | 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, |
| aoqi@0 | 88 | 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, |
| aoqi@0 | 89 | 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, |
| aoqi@0 | 90 | 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, |
| aoqi@0 | 91 | 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, |
| aoqi@0 | 92 | 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, |
| aoqi@0 | 93 | 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, |
| aoqi@0 | 94 | 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, |
| aoqi@0 | 95 | 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, |
| aoqi@0 | 96 | 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, |
| aoqi@0 | 97 | 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, |
| aoqi@0 | 98 | 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, |
| aoqi@0 | 99 | 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, |
| aoqi@0 | 100 | 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, |
| aoqi@0 | 101 | 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, |
| aoqi@0 | 102 | 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, |
| aoqi@0 | 103 | 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, |
| aoqi@0 | 104 | 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, |
| aoqi@0 | 105 | 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, |
| aoqi@0 | 106 | 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, |
| aoqi@0 | 107 | 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, |
| aoqi@0 | 108 | 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, |
| aoqi@0 | 109 | 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, |
| aoqi@0 | 110 | 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, |
| aoqi@0 | 111 | 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, |
| aoqi@0 | 112 | 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, |
| aoqi@0 | 113 | 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, |
| aoqi@0 | 114 | 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, |
| aoqi@0 | 115 | 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, |
| aoqi@0 | 116 | 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, |
| aoqi@0 | 117 | 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, |
| aoqi@0 | 118 | 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, |
| aoqi@0 | 119 | 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, |
| aoqi@0 | 120 | 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, |
| aoqi@0 | 121 | 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, |
| aoqi@0 | 122 | 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, |
| aoqi@0 | 123 | 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, |
| aoqi@0 | 124 | 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, |
| aoqi@0 | 125 | 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, |
| aoqi@0 | 126 | 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, |
| aoqi@0 | 127 | 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, |
| aoqi@0 | 128 | 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, |
| aoqi@0 | 129 | 0x2d02ef8dUL |
| aoqi@0 | 130 | }; |
