| 1 | #!/usr/bin/env python
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| 2 | # -*- coding: utf-8 -*-
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| 3 | # $Id: IEMAllN8vePython.py 101849 2023-11-06 09:48:15Z vboxsync $
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| 4 | # pylint: disable=invalid-name
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| 5 |
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| 6 | """
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| 7 | Native recompiler side-kick for IEMAllThrdPython.py.
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| 8 |
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| 9 | Analyzes the each threaded function variant to see if we can we're able to
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| 10 | recompile it, then provides modifies MC block code for doing so.
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| 11 | """
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| 12 |
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| 13 | from __future__ import print_function;
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| 14 |
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| 15 | __copyright__ = \
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| 16 | """
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| 17 | Copyright (C) 2023 Oracle and/or its affiliates.
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| 18 |
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| 19 | This file is part of VirtualBox base platform packages, as
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| 20 | available from https://www.virtualbox.org.
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| 21 |
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| 22 | This program is free software; you can redistribute it and/or
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| 23 | modify it under the terms of the GNU General Public License
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| 24 | as published by the Free Software Foundation, in version 3 of the
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| 25 | License.
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| 26 |
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| 27 | This program is distributed in the hope that it will be useful, but
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| 28 | WITHOUT ANY WARRANTY; without even the implied warranty of
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| 29 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 30 | General Public License for more details.
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| 31 |
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| 32 | You should have received a copy of the GNU General Public License
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| 33 | along with this program; if not, see <https://www.gnu.org/licenses>.
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| 34 |
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| 35 | SPDX-License-Identifier: GPL-3.0-only
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| 36 | """
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| 37 | __version__ = "$Revision: 101849 $"
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| 38 |
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| 39 | # Standard python imports:
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| 40 | import copy;
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| 41 |
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| 42 | # Out python imports:
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| 43 | import IEMAllInstPython as iai;
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| 44 |
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| 45 |
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| 46 | ## Supplememnts g_dMcStmtParsers.
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| 47 | g_dMcStmtThreaded = {
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| 48 | 'IEM_MC_DEFER_TO_CIMPL_0_RET_THREADED': (None, True, True, ),
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| 49 | 'IEM_MC_DEFER_TO_CIMPL_1_RET_THREADED': (None, True, True, ),
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| 50 | 'IEM_MC_DEFER_TO_CIMPL_2_RET_THREADED': (None, True, True, ),
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| 51 | 'IEM_MC_DEFER_TO_CIMPL_3_RET_THREADED': (None, True, True, ),
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| 52 |
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| 53 | 'IEM_MC_ADVANCE_RIP_AND_FINISH_THREADED_PC16': (None, True, True, ),
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| 54 | 'IEM_MC_ADVANCE_RIP_AND_FINISH_THREADED_PC32': (None, True, True, ),
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| 55 | 'IEM_MC_ADVANCE_RIP_AND_FINISH_THREADED_PC64': (None, True, True, ),
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| 56 |
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| 57 | 'IEM_MC_ADVANCE_RIP_AND_FINISH_THREADED_PC16_WITH_FLAGS': (None, True, True, ),
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| 58 | 'IEM_MC_ADVANCE_RIP_AND_FINISH_THREADED_PC32_WITH_FLAGS': (None, True, True, ),
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| 59 | 'IEM_MC_ADVANCE_RIP_AND_FINISH_THREADED_PC64_WITH_FLAGS': (None, True, True, ),
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| 60 |
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| 61 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_16_ADDR32': (None, False, False, ),
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| 62 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_16_PRE386': (None, False, False, ),
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| 63 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_16': (None, False, False, ),
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| 64 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_32_ADDR16': (None, False, False, ),
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| 65 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_32_FLAT': (None, False, False, ),
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| 66 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_32': (None, False, False, ),
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| 67 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_64_ADDR32': (None, False, False, ),
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| 68 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_64_FSGS': (None, False, False, ),
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| 69 | 'IEM_MC_CALC_RM_EFF_ADDR_THREADED_64': (None, False, False, ),
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| 70 |
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| 71 | 'IEM_MC_CALL_CIMPL_1_THREADED': (None, True, True, ),
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| 72 | 'IEM_MC_CALL_CIMPL_2_THREADED': (None, True, True, ),
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| 73 | 'IEM_MC_CALL_CIMPL_3_THREADED': (None, True, False, ),
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| 74 | 'IEM_MC_CALL_CIMPL_4_THREADED': (None, True, False, ),
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| 75 | 'IEM_MC_CALL_CIMPL_5_THREADED': (None, True, False, ),
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| 76 |
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| 77 | 'IEM_MC_REL_JMP_S8_AND_FINISH_THREADED_PC16': (None, True, True, ),
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| 78 | 'IEM_MC_REL_JMP_S8_AND_FINISH_THREADED_PC32': (None, True, True, ),
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| 79 | 'IEM_MC_REL_JMP_S8_AND_FINISH_THREADED_PC64': (None, True, True, ),
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| 80 | 'IEM_MC_REL_JMP_S16_AND_FINISH_THREADED_PC16': (None, True, True, ),
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| 81 | 'IEM_MC_REL_JMP_S16_AND_FINISH_THREADED_PC32': (None, True, True, ),
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| 82 | 'IEM_MC_REL_JMP_S16_AND_FINISH_THREADED_PC64': (None, True, True, ),
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| 83 | 'IEM_MC_REL_JMP_S32_AND_FINISH_THREADED_PC32': (None, True, True, ),
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| 84 | 'IEM_MC_REL_JMP_S32_AND_FINISH_THREADED_PC64': (None, True, True, ),
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| 85 |
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| 86 | 'IEM_MC_REL_JMP_S8_AND_FINISH_THREADED_PC16_WITH_FLAGS': (None, True, True, ),
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| 87 | 'IEM_MC_REL_JMP_S8_AND_FINISH_THREADED_PC32_WITH_FLAGS': (None, True, True, ),
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| 88 | 'IEM_MC_REL_JMP_S8_AND_FINISH_THREADED_PC64_WITH_FLAGS': (None, True, True, ),
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| 89 | 'IEM_MC_REL_JMP_S16_AND_FINISH_THREADED_PC16_WITH_FLAGS': (None, True, True, ),
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| 90 | 'IEM_MC_REL_JMP_S16_AND_FINISH_THREADED_PC32_WITH_FLAGS': (None, True, True, ),
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| 91 | 'IEM_MC_REL_JMP_S16_AND_FINISH_THREADED_PC64_WITH_FLAGS': (None, True, True, ),
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| 92 | 'IEM_MC_REL_JMP_S32_AND_FINISH_THREADED_PC32_WITH_FLAGS': (None, True, True, ),
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| 93 | 'IEM_MC_REL_JMP_S32_AND_FINISH_THREADED_PC64_WITH_FLAGS': (None, True, True, ),
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| 94 |
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| 95 | 'IEM_MC_STORE_GREG_U8_THREADED': (None, True, False, ),
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| 96 | 'IEM_MC_STORE_GREG_U8_CONST_THREADED': (None, True, True, ),
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| 97 | 'IEM_MC_FETCH_GREG_U8_THREADED': (None, False, False, ),
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| 98 | 'IEM_MC_FETCH_GREG_U8_SX_U16_THREADED': (None, False, False, ),
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| 99 | 'IEM_MC_FETCH_GREG_U8_SX_U32_THREADED': (None, False, False, ),
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| 100 | 'IEM_MC_FETCH_GREG_U8_SX_U64_THREADED': (None, False, False, ),
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| 101 | 'IEM_MC_FETCH_GREG_U8_ZX_U16_THREADED': (None, False, False, ),
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| 102 | 'IEM_MC_FETCH_GREG_U8_ZX_U32_THREADED': (None, False, False, ),
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| 103 | 'IEM_MC_FETCH_GREG_U8_ZX_U64_THREADED': (None, False, False, ),
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| 104 | 'IEM_MC_REF_GREG_U8_THREADED': (None, True, False, ),
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| 105 |
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| 106 | # Flat Mem:
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| 107 | 'IEM_MC_FETCH_MEM16_FLAT_U8': (None, True, False, ),
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| 108 | 'IEM_MC_FETCH_MEM32_FLAT_U8': (None, True, False, ),
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| 109 | 'IEM_MC_FETCH_MEM_FLAT_D80': (None, True, False, ),
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| 110 | 'IEM_MC_FETCH_MEM_FLAT_I16': (None, True, False, ),
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| 111 | 'IEM_MC_FETCH_MEM_FLAT_I32': (None, True, False, ),
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| 112 | 'IEM_MC_FETCH_MEM_FLAT_I64': (None, True, False, ),
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| 113 | 'IEM_MC_FETCH_MEM_FLAT_R32': (None, True, False, ),
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| 114 | 'IEM_MC_FETCH_MEM_FLAT_R64': (None, True, False, ),
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| 115 | 'IEM_MC_FETCH_MEM_FLAT_R80': (None, True, False, ),
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| 116 | 'IEM_MC_FETCH_MEM_FLAT_U128_ALIGN_SSE': (None, True, False, ),
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| 117 | 'IEM_MC_FETCH_MEM_FLAT_U128_NO_AC': (None, True, False, ),
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| 118 | 'IEM_MC_FETCH_MEM_FLAT_U128': (None, True, False, ),
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| 119 | 'IEM_MC_FETCH_MEM_FLAT_U16_DISP': (None, True, False, ),
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| 120 | 'IEM_MC_FETCH_MEM_FLAT_U16_SX_U32': (None, True, False, ),
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| 121 | 'IEM_MC_FETCH_MEM_FLAT_U16_SX_U64': (None, True, False, ),
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| 122 | 'IEM_MC_FETCH_MEM_FLAT_U16': (None, True, False, ),
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| 123 | 'IEM_MC_FETCH_MEM_FLAT_U16_ZX_U32': (None, True, False, ),
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| 124 | 'IEM_MC_FETCH_MEM_FLAT_U16_ZX_U64': (None, True, False, ),
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| 125 | 'IEM_MC_FETCH_MEM_FLAT_U256_ALIGN_AVX': (None, True, False, ),
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| 126 | 'IEM_MC_FETCH_MEM_FLAT_U256_NO_AC': (None, True, False, ),
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| 127 | 'IEM_MC_FETCH_MEM_FLAT_U256': (None, True, False, ),
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| 128 | 'IEM_MC_FETCH_MEM_FLAT_U32_DISP': (None, True, False, ),
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| 129 | 'IEM_MC_FETCH_MEM_FLAT_U32_SX_U64': (None, True, False, ),
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| 130 | 'IEM_MC_FETCH_MEM_FLAT_U32': (None, True, False, ),
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| 131 | 'IEM_MC_FETCH_MEM_FLAT_U32_ZX_U64': (None, True, False, ),
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| 132 | 'IEM_MC_FETCH_MEM_FLAT_U64': (None, True, False, ),
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| 133 | 'IEM_MC_FETCH_MEM_FLAT_U8_SX_U16': (None, True, False, ),
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| 134 | 'IEM_MC_FETCH_MEM_FLAT_U8_SX_U32': (None, True, False, ),
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| 135 | 'IEM_MC_FETCH_MEM_FLAT_U8_SX_U64': (None, True, False, ),
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| 136 | 'IEM_MC_FETCH_MEM_FLAT_U8': (None, True, False, ),
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| 137 | 'IEM_MC_FETCH_MEM_FLAT_U8_ZX_U16': (None, True, False, ),
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| 138 | 'IEM_MC_FETCH_MEM_FLAT_U8_ZX_U32': (None, True, False, ),
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| 139 | 'IEM_MC_FETCH_MEM_FLAT_U8_ZX_U64': (None, True, False, ),
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| 140 | 'IEM_MC_FETCH_MEM_FLAT_XMM_ALIGN_SSE': (None, True, False, ),
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| 141 | 'IEM_MC_FETCH_MEM_FLAT_XMM_U32': (None, True, False, ),
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| 142 | 'IEM_MC_FETCH_MEM_FLAT_XMM_U64': (None, True, False, ),
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| 143 | 'IEM_MC_MEM_FLAT_MAP_EX': (None, True, False, ),
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| 144 | 'IEM_MC_MEM_FLAT_MAP': (None, True, False, ),
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| 145 | 'IEM_MC_MEM_FLAT_MAP_U16_RO': (None, True, False, ),
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| 146 | 'IEM_MC_MEM_FLAT_MAP_U16_RW': (None, True, False, ),
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| 147 | 'IEM_MC_MEM_FLAT_MAP_U32_RO': (None, True, False, ),
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| 148 | 'IEM_MC_MEM_FLAT_MAP_U32_RW': (None, True, False, ),
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| 149 | 'IEM_MC_MEM_FLAT_MAP_U64_RO': (None, True, False, ),
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| 150 | 'IEM_MC_MEM_FLAT_MAP_U64_RW': (None, True, False, ),
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| 151 | 'IEM_MC_MEM_FLAT_MAP_U8_RO': (None, True, False, ),
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| 152 | 'IEM_MC_MEM_FLAT_MAP_U8_RW': (None, True, False, ),
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| 153 | 'IEM_MC_STORE_MEM_FLAT_U128_ALIGN_SSE': (None, True, False, ),
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| 154 | 'IEM_MC_STORE_MEM_FLAT_U128': (None, True, False, ),
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| 155 | 'IEM_MC_STORE_MEM_FLAT_U16': (None, True, False, ),
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| 156 | 'IEM_MC_STORE_MEM_FLAT_U256_ALIGN_AVX': (None, True, False, ),
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| 157 | 'IEM_MC_STORE_MEM_FLAT_U256': (None, True, False, ),
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| 158 | 'IEM_MC_STORE_MEM_FLAT_U32': (None, True, False, ),
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| 159 | 'IEM_MC_STORE_MEM_FLAT_U64': (None, True, False, ),
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| 160 | 'IEM_MC_STORE_MEM_FLAT_U8_CONST': (None, True, False, ),
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| 161 | 'IEM_MC_STORE_MEM_FLAT_U8': (None, True, False, ),
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| 162 |
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| 163 | # Flat Stack:
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| 164 | 'IEM_MC_FLAT64_PUSH_U16': (None, True, False, ),
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| 165 | 'IEM_MC_FLAT64_PUSH_U64': (None, True, False, ),
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| 166 | 'IEM_MC_FLAT64_POP_U16': (None, True, False, ),
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| 167 | 'IEM_MC_FLAT64_POP_U64': (None, True, False, ),
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| 168 | 'IEM_MC_FLAT32_PUSH_U16': (None, True, False, ),
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| 169 | 'IEM_MC_FLAT32_PUSH_U32': (None, True, False, ),
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| 170 | 'IEM_MC_FLAT32_POP_U16': (None, True, False, ),
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| 171 | 'IEM_MC_FLAT32_POP_U32': (None, True, False, ),
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| 172 | };
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| 173 |
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| 174 | class NativeRecompFunctionVariation(object):
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| 175 | """
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| 176 | Class that deals with transforming a threaded function variation into a
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| 177 | native recompiler function.
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| 178 |
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| 179 | This base class doesn't do any transforming and just renders the same
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| 180 | code as for the threaded function.
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| 181 | """
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| 182 |
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| 183 | def __init__(self, oVariation, sHostArch):
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| 184 | self.oVariation = oVariation # type: ThreadedFunctionVariation
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| 185 | self.sHostArch = sHostArch;
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| 186 |
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| 187 | def isRecompilable(self):
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| 188 | """
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| 189 | Predicate that returns whether the variant can be recompiled natively
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| 190 | (for the selected host architecture).
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| 191 | """
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| 192 | return True;
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| 193 |
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| 194 | def renderCode(self, cchIndent):
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| 195 | """
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| 196 | Returns the native recompiler function body for this threaded variant.
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| 197 | """
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| 198 | # Take the threaded function statement list and add detected
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| 199 | # IEM_CIMPL_F_XXX flags to the IEM_MC_BEGIN statement.
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| 200 | aoStmts = list(self.oVariation.aoStmtsForThreadedFunction) # type: list(McStmt)
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| 201 | for iStmt, oStmt in enumerate(aoStmts):
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| 202 | if oStmt.sName == 'IEM_MC_BEGIN' and self.oVariation.oParent.dsCImplFlags:
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| 203 | oNewStmt = copy.deepcopy(oStmt);
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| 204 | oNewStmt.asParams[3] = ' | '.join(sorted(self.oVariation.oParent.dsCImplFlags.keys()));
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| 205 | aoStmts[iStmt] = oNewStmt;
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| 206 |
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| 207 | return iai.McStmt.renderCodeForList(aoStmts, cchIndent);
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| 208 |
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| 209 | @staticmethod
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| 210 | def checkStatements(aoStmts, sHostArch):
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| 211 | """
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| 212 | Checks that all the given statements are supported by the native recompiler.
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| 213 | Returns dictionary with the unsupported statments.
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| 214 | """
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| 215 | dRet = {};
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| 216 | _ = sHostArch;
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| 217 | for oStmt in aoStmts: # type: McStmt
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| 218 | if not oStmt.isCppStmt():
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| 219 | aInfo = iai.g_dMcStmtParsers.get(oStmt.sName);
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| 220 | if not aInfo:
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| 221 | aInfo = g_dMcStmtThreaded.get(oStmt.sName);
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| 222 | if not aInfo:
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| 223 | raise Exception('Unknown statement: %s' % (oStmt.sName, ));
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| 224 | if aInfo[2] is False:
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| 225 | dRet[oStmt.sName] = 1;
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| 226 | elif aInfo[2] is not True:
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| 227 | if isinstance(aInfo[2], str):
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| 228 | if aInfo[2] != sHostArch:
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| 229 | dRet[oStmt.sName] = 1;
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| 230 | elif sHostArch not in aInfo[2]:
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| 231 | dRet[oStmt.sName] = 1;
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| 232 | #elif not self.fDecode:
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| 233 |
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| 234 | if isinstance(oStmt, iai.McStmtCond):
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| 235 | dRet.update(NativeRecompFunctionVariation.checkStatements(oStmt.aoIfBranch, sHostArch));
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| 236 | dRet.update(NativeRecompFunctionVariation.checkStatements(oStmt.aoElseBranch, sHostArch));
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| 237 |
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| 238 | return dRet;
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| 239 |
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| 240 |
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| 241 | ## Statistics: Number of MC blocks (value) depending on each unsupported statement (key).
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| 242 | g_dUnsupportedMcStmtStats = {}
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| 243 |
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| 244 | ## Statistics: List of variations (value) that is only missing this one statement (key).
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| 245 | g_dUnsupportedMcStmtLastOneStats = {}
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| 246 |
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| 247 | ## Statistics: List of variations (value) with vars/args that is only missing this one statement (key).
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| 248 | g_dUnsupportedMcStmtLastOneVarStats = {}
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| 249 |
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| 250 |
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| 251 | def analyzeVariantForNativeRecomp(oVariation,
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| 252 | sHostArch): # type: (ThreadedFunctionVariation, str) -> NativeRecompFunctionVariation
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| 253 | """
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| 254 | This function analyzes the threaded function variant and returns an
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| 255 | NativeRecompFunctionVariation instance for it, unless it's not
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| 256 | possible to recompile at present.
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| 257 |
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| 258 | Returns NativeRecompFunctionVariation or the number of unsupported MCs.
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| 259 | """
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| 260 |
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| 261 | #
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| 262 | # Analyze the statements.
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| 263 | #
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| 264 | aoStmts = oVariation.aoStmtsForThreadedFunction # type: list(McStmt)
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| 265 | dUnsupportedStmts = NativeRecompFunctionVariation.checkStatements(aoStmts, sHostArch);
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| 266 | if not dUnsupportedStmts:
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| 267 | return NativeRecompFunctionVariation(oVariation, sHostArch);
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| 268 |
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| 269 | #
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| 270 | # Update the statistics.
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| 271 | #
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| 272 | for sStmt in dUnsupportedStmts:
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| 273 | g_dUnsupportedMcStmtStats[sStmt] = 1 + g_dUnsupportedMcStmtStats.get(sStmt, 0);
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| 274 |
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| 275 | if len(dUnsupportedStmts) == 1:
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| 276 | for sStmt in dUnsupportedStmts:
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| 277 | if sStmt in g_dUnsupportedMcStmtLastOneStats:
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| 278 | g_dUnsupportedMcStmtLastOneStats[sStmt].append(oVariation);
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| 279 | else:
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| 280 | g_dUnsupportedMcStmtLastOneStats[sStmt] = [oVariation,];
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| 281 |
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| 282 | if ( len(dUnsupportedStmts) in (1,2)
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| 283 | and iai.McStmt.findStmtByNames(aoStmts,
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| 284 | { 'IEM_MC_LOCAL': 1, 'IEM_MC_LOCAL_CONST': 1, 'IEM_MC_ARG': 1, 'IEM_MC_ARG_CONST': 1,
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| 285 | 'IEM_MC_ARG_LOCAL_REF': 1, 'IEM_MC_ARG_LOCAL_EFLAGS': 1, })):
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| 286 | for sStmt in dUnsupportedStmts:
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| 287 | if sStmt in g_dUnsupportedMcStmtLastOneVarStats:
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| 288 | g_dUnsupportedMcStmtLastOneVarStats[sStmt].append(oVariation);
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| 289 | else:
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| 290 | g_dUnsupportedMcStmtLastOneVarStats[sStmt] = [oVariation,];
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| 291 |
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| 292 |
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| 293 |
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| 294 | return None;
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