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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.
*/
#include "config.h"
#include "FTLExitValue.h"
#if ENABLE(FTL_JIT)
#include "JSCJSValueInlines.h"
#include "TrackedReferences.h"
namespace JSC { namespace FTL {
ExitValue ExitValue::materializeNewObject(ExitTimeObjectMaterialization* data)
{
ExitValue result;
result.m_kind = ExitValueMaterializeNewObject;
UnionType u;
u.newObjectMaterializationData = data;
result.m_value = WTFMove(u);
return result;
}
ExitValue ExitValue::withLocalsOffset(int offset) const
{
if (!isInJSStackSomehow())
return *this;
if (!virtualRegister().isLocal())
return *this;
return withVirtualRegister(virtualRegister() + offset);
}
DataFormat ExitValue::dataFormat() const
{
switch (kind()) {
case InvalidExitValue:
RELEASE_ASSERT_NOT_REACHED();
return DataFormatNone;
case ExitValueDead:
case ExitValueConstant:
case ExitValueInJSStack:
case ExitValueMaterializeNewObject:
return DataFormatJS;
case ExitValueArgument:
return exitArgument().format();
case ExitValueInJSStackAsInt32:
return DataFormatInt32;
case ExitValueInJSStackAsInt52:
return DataFormatInt52;
case ExitValueInJSStackAsDouble:
return DataFormatDouble;
}
RELEASE_ASSERT_NOT_REACHED();
}
void ExitValue::dumpInContext(PrintStream& out, DumpContext* context) const
{
switch (kind()) {
case InvalidExitValue:
out.print("Invalid");
return;
case ExitValueDead:
out.print("Dead");
return;
case ExitValueArgument:
out.print("Argument(", exitArgument(), ")");
return;
case ExitValueConstant:
out.print("Constant(", inContext(constant(), context), ")");
return;
case ExitValueInJSStack:
out.print("InJSStack:", virtualRegister());
return;
case ExitValueInJSStackAsInt32:
out.print("InJSStackAsInt32:", virtualRegister());
return;
case ExitValueInJSStackAsInt52:
out.print("InJSStackAsInt52:", virtualRegister());
return;
case ExitValueInJSStackAsDouble:
out.print("InJSStackAsDouble:", virtualRegister());
return;
case ExitValueMaterializeNewObject:
out.print("Materialize(", WTF::RawPointer(objectMaterialization()), ")");
return;
}
RELEASE_ASSERT_NOT_REACHED();
}
void ExitValue::dump(PrintStream& out) const
{
dumpInContext(out, nullptr);
}
void ExitValue::validateReferences(const TrackedReferences& trackedReferences) const
{
if (isConstant())
trackedReferences.check(constant());
}
} } // namespace JSC::FTL
#endif // ENABLE(FTL_JIT)
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