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/*
* Copyright (C) 2013-2015 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.
*/
#ifndef DFGFlushFormat_h
#define DFGFlushFormat_h
#if ENABLE(DFG_JIT)
#include "DFGNodeFlags.h"
#include "DFGUseKind.h"
#include "DataFormat.h"
#include "DumpContext.h"
#include <wtf/PrintStream.h>
namespace JSC { namespace DFG {
enum FlushFormat {
DeadFlush,
FlushedInt32,
FlushedInt52,
FlushedDouble,
FlushedCell,
FlushedBoolean,
FlushedJSValue,
ConflictingFlush
};
inline NodeFlags resultFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case FlushedJSValue:
case FlushedCell:
case ConflictingFlush:
return NodeResultJS;
case FlushedInt32:
return NodeResultInt32;
case FlushedInt52:
return NodeResultInt52;
case FlushedDouble:
return NodeResultDouble;
case FlushedBoolean:
return NodeResultBoolean;
}
RELEASE_ASSERT_NOT_REACHED();
return 0;
}
inline UseKind useKindFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case FlushedJSValue:
case ConflictingFlush:
return UntypedUse;
case FlushedCell:
return CellUse;
case FlushedInt32:
return Int32Use;
case FlushedInt52:
return Int52RepUse;
case FlushedDouble:
return DoubleRepUse;
case FlushedBoolean:
return BooleanUse;
}
RELEASE_ASSERT_NOT_REACHED();
return UntypedUse;
}
inline UseKind uncheckedUseKindFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case FlushedJSValue:
case ConflictingFlush:
return UntypedUse;
case FlushedCell:
return KnownCellUse;
case FlushedInt32:
return KnownInt32Use;
case FlushedInt52:
return Int52RepUse;
case FlushedDouble:
return DoubleRepUse;
case FlushedBoolean:
return KnownBooleanUse;
}
RELEASE_ASSERT_NOT_REACHED();
return UntypedUse;
}
inline SpeculatedType typeFilterFor(FlushFormat format)
{
return typeFilterFor(useKindFor(format));
}
inline DataFormat dataFormatFor(FlushFormat format)
{
switch (format) {
case DeadFlush:
case ConflictingFlush:
return DataFormatDead;
case FlushedJSValue:
return DataFormatJS;
case FlushedDouble:
return DataFormatDouble;
case FlushedInt32:
return DataFormatInt32;
case FlushedInt52:
return DataFormatInt52;
case FlushedCell:
return DataFormatCell;
case FlushedBoolean:
return DataFormatBoolean;
}
RELEASE_ASSERT_NOT_REACHED();
return DataFormatDead;
}
inline FlushFormat merge(FlushFormat a, FlushFormat b)
{
if (a == DeadFlush)
return b;
if (b == DeadFlush)
return a;
if (a == b)
return a;
return ConflictingFlush;
}
inline bool isConcrete(FlushFormat format)
{
return format != DeadFlush && format != ConflictingFlush;
}
} } // namespace JSC::DFG
namespace WTF {
void printInternal(PrintStream&, JSC::DFG::FlushFormat);
inline JSC::DFG::FlushFormat inContext(JSC::DFG::FlushFormat format, JSC::DumpContext*)
{
return format;
}
} // namespace WTF
#endif // ENABLE(DFG_JIT)
#endif // DFGFlushFormat_h
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