mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* Copyright (C) 2015-2016 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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namespace JSC { namespace B3 {
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class JS_EXPORT_PRIVATE UpsilonValue final : public Value {
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public:
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static bool accepts(Kind kind) { return kind == Upsilon; }
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~UpsilonValue() final;
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Value* phi() const { return m_phi; }
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void setPhi(Value* phi)
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{
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ASSERT(child(0)->type() == phi->type());
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ASSERT(phi->opcode() == Phi);
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m_phi = phi;
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}
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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, Value*, Value* = nullptr) { return Upsilon; }
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// Note that passing the Phi during construction is optional. A valid pattern is to first create
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// the Upsilons without the Phi, then create the Phi, then go back and tell the Upsilons about
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// the Phi. This allows you to emit code in its natural order.
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UpsilonValue(Origin origin, Value* value, Value* phi = nullptr)
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: Value(CheckedOpcode, Upsilon, Void, One, origin, value)
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, m_phi(phi)
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{
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if (phi)
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ASSERT(value->type() == phi->type());
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}
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Value* m_phi;
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};
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} } // namespace JSC::B3
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#endif // ENABLE(B3_JIT)
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