b125aebb91
Preliminary support for intrinsic multiplyToLen, including generalised version based on 'mpmul' instruction (when available). Reviewed-by: kvn, neliasso
77 lines
3.0 KiB
C++
77 lines
3.0 KiB
C++
/*
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* Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
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#define CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
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// This file holds the platform specific parts of the StubRoutines
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// definition. See stubRoutines.hpp for a description on how to
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// extend it.
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// So unfortunately c2 will call with a pc from a frame object
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// (already adjusted) and a raw pc (unadjusted), so we need to check both.
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// It didn't use to be like this before adapter removal.
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static bool returns_to_call_stub(address return_pc) {
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return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) ||
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(return_pc == _call_stub_return_address );
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}
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enum /* platform_dependent_constants */ {
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// %%%%%%%% May be able to shrink this a lot
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code_size1 = 20000, // simply increase if too small (assembler will crash if too small)
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code_size2 = 29000 // simply increase if too small (assembler will crash if too small)
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};
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class Sparc {
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friend class StubGenerator;
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private:
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static address _test_stop_entry;
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static address _stop_subroutine_entry;
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static address _flush_callers_register_windows_entry;
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static address _partial_subtype_check;
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// masks and table for CRC32
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static uint64_t _crc_by128_masks[];
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static juint _crc_table[];
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static juint _crc32c_table[];
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public:
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// test assembler stop routine by setting registers
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static void (*test_stop_entry()) () { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); }
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// a subroutine for debugging assembler code
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static address stop_subroutine_entry_address() { return (address)&_stop_subroutine_entry; }
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// flushes (all but current) register window
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static intptr_t* (*flush_callers_register_windows_func())() { return CAST_TO_FN_PTR(intptr_t* (*)(void), _flush_callers_register_windows_entry); }
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static address partial_subtype_check() { return _partial_subtype_check; }
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static address crc_by128_masks_addr() { return (address)_crc_by128_masks; }
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};
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#endif // CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
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