mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-12 03:36:54 +00:00
97 lines
4.0 KiB
C++
97 lines
4.0 KiB
C++
/*
|
|
* Copyright (C) 2017 Apple Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#if ENABLE(B3_JIT)
|
|
|
|
#include "B3MemoryValue.h"
|
|
#include "B3Width.h"
|
|
|
|
namespace JSC { namespace B3 {
|
|
|
|
class JS_EXPORT_PRIVATE AtomicValue final : public MemoryValue {
|
|
public:
|
|
static bool accepts(Kind kind)
|
|
{
|
|
return isAtom(kind.opcode());
|
|
}
|
|
|
|
~AtomicValue() final;
|
|
|
|
Type accessType() const { return child(0)->type(); }
|
|
|
|
Width accessWidth() const { return m_width; }
|
|
|
|
B3_SPECIALIZE_VALUE_FOR_FINAL_SIZE_FIXED_CHILDREN
|
|
|
|
private:
|
|
void dumpMeta(CommaPrinter&, PrintStream&) const final;
|
|
|
|
friend class Procedure;
|
|
friend class Value;
|
|
|
|
enum AtomicValueRMW { AtomicValueRMWTag };
|
|
enum AtomicValueCAS { AtomicValueCASTag };
|
|
|
|
AtomicValue(Kind kind, Origin origin, Width width, Value* operand, Value* pointer)
|
|
: AtomicValue(kind, origin, width, operand, pointer, 0)
|
|
{
|
|
}
|
|
template<typename Int,
|
|
typename = typename std::enable_if<std::is_integral<Int>::value>::type,
|
|
typename = typename std::enable_if<std::is_signed<Int>::value>::type,
|
|
typename = typename std::enable_if<sizeof(Int) <= sizeof(OffsetType)>::type
|
|
>
|
|
AtomicValue(Kind kind, Origin origin, Width width, Value* operand, Value* pointer, Int offset, HeapRange range = HeapRange::top(), HeapRange fenceRange = HeapRange::top())
|
|
: AtomicValue(AtomicValueRMWTag, kind, origin, width, operand, pointer, offset, range, fenceRange)
|
|
{
|
|
}
|
|
|
|
AtomicValue(Kind kind, Origin origin, Width width, Value* expectedValue, Value* newValue, Value* pointer)
|
|
: AtomicValue(kind, origin, width, expectedValue, newValue, pointer, 0)
|
|
{
|
|
}
|
|
template<typename Int,
|
|
typename = typename std::enable_if<std::is_integral<Int>::value>::type,
|
|
typename = typename std::enable_if<std::is_signed<Int>::value>::type,
|
|
typename = typename std::enable_if<sizeof(Int) <= sizeof(OffsetType)>::type
|
|
>
|
|
AtomicValue(Kind kind, Origin origin, Width width, Value* expectedValue, Value* newValue, Value* pointer, Int offset, HeapRange range = HeapRange::top(), HeapRange fenceRange = HeapRange::top())
|
|
: AtomicValue(AtomicValueCASTag, kind, origin, width, expectedValue, newValue, pointer, offset, range, fenceRange)
|
|
{
|
|
}
|
|
|
|
// The above templates forward to these implementations.
|
|
AtomicValue(AtomicValueRMW, Kind, Origin, Width, Value* operand, Value* pointer, OffsetType, HeapRange = HeapRange::top(), HeapRange fenceRange = HeapRange::top());
|
|
AtomicValue(AtomicValueCAS, Kind, Origin, Width, Value* expectedValue, Value* newValue, Value* pointer, OffsetType, HeapRange = HeapRange::top(), HeapRange fenceRange = HeapRange::top());
|
|
|
|
Width m_width;
|
|
};
|
|
|
|
} } // namespace JSC::B3
|
|
|
|
#endif // ENABLE(B3_JIT)
|