mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/*
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* Copyright (C) 2015-2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(B3_JIT)
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#include "B3Value.h"
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#include "CCallHelpers.h"
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namespace JSC { namespace B3 {
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class WasmBoundsCheckValue final : public Value {
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public:
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static bool accepts(Kind kind) { return kind == WasmBoundsCheck; }
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~WasmBoundsCheckValue() final;
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enum class Type {
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Pinned,
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Maximum,
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};
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union Bounds {
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GPRReg pinnedSize;
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size_t maximum;
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};
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unsigned offset() const { return m_offset; }
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Type boundsType() const { return m_boundsType; }
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Bounds bounds() const { return m_bounds; }
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B3_SPECIALIZE_VALUE_FOR_FIXED_CHILDREN(1)
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B3_SPECIALIZE_VALUE_FOR_FINAL_SIZE_FIXED_CHILDREN
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private:
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void dumpMeta(CommaPrinter&, PrintStream&) const final;
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friend class Procedure;
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friend class Value;
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static Opcode opcodeFromConstructor(Origin, GPRReg, Value*, unsigned) { return WasmBoundsCheck; }
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JS_EXPORT_PRIVATE WasmBoundsCheckValue(Origin, GPRReg pinnedGPR, Value* ptr, unsigned offset);
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static Opcode opcodeFromConstructor(Origin, Value*, unsigned, size_t) { return WasmBoundsCheck; }
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JS_EXPORT_PRIVATE WasmBoundsCheckValue(Origin, Value* ptr, unsigned offset, size_t maximum);
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unsigned m_offset;
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Type m_boundsType;
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Bounds m_bounds;
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};
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} } // namespace JSC::B3
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#endif // ENABLE(B3_JIT)
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