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/*
* Copyright (C) 2011-2019 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 "ValueRecovery.h"
#include "JSCJSValueInlines.h"
namespace JSC {
JSValue ValueRecovery::recover(CallFrame* callFrame) const
{
switch (technique()) {
case DisplacedInJSStack:
return callFrame->r(virtualRegister()).jsValue();
case Int32DisplacedInJSStack:
return jsNumber(callFrame->r(virtualRegister()).unboxedInt32());
case Int52DisplacedInJSStack:
return jsNumber(callFrame->r(virtualRegister()).unboxedInt52());
case StrictInt52DisplacedInJSStack:
return jsNumber(callFrame->r(virtualRegister()).unboxedStrictInt52());
case DoubleDisplacedInJSStack:
return jsNumber(purifyNaN(callFrame->r(virtualRegister()).unboxedDouble()));
case CellDisplacedInJSStack:
return callFrame->r(virtualRegister()).unboxedCell();
case BooleanDisplacedInJSStack:
#if USE(JSVALUE64)
return callFrame->r(virtualRegister()).jsValue();
#else
return jsBoolean(callFrame->r(virtualRegister()).unboxedBoolean());
#endif
case Constant:
return constant();
default:
RELEASE_ASSERT_NOT_REACHED();
return JSValue();
}
}
#if ENABLE(JIT)
void ValueRecovery::dumpInContext(PrintStream& out, DumpContext* context) const
{
switch (technique()) {
case InGPR:
out.print(gpr());
return;
case UnboxedInt32InGPR:
out.print("int32(", gpr(), ")");
return;
case UnboxedInt52InGPR:
out.print("int52(", gpr(), ")");
return;
case UnboxedStrictInt52InGPR:
out.print("strictInt52(", gpr(), ")");
return;
case UnboxedBooleanInGPR:
out.print("bool(", gpr(), ")");
return;
case UnboxedCellInGPR:
out.print("cell(", gpr(), ")");
return;
case InFPR:
out.print(fpr());
return;
case UnboxedDoubleInFPR:
out.print("double(", fpr(), ")");
return;
#if USE(JSVALUE32_64)
case InPair:
out.print("pair(", tagGPR(), ", ", payloadGPR(), ")");
return;
#endif
case DisplacedInJSStack:
out.print("*", virtualRegister());
return;
case Int32DisplacedInJSStack:
out.print("*int32(", virtualRegister(), ")");
return;
#if USE(JSVALUE32_64)
case Int32TagDisplacedInJSStack:
out.print("*int32Tag(", virtualRegister(), ")");
return;
#endif
case Int52DisplacedInJSStack:
out.print("*int52(", virtualRegister(), ")");
return;
case StrictInt52DisplacedInJSStack:
out.print("*strictInt52(", virtualRegister(), ")");
return;
case DoubleDisplacedInJSStack:
out.print("*double(", virtualRegister(), ")");
return;
case CellDisplacedInJSStack:
out.print("*cell(", virtualRegister(), ")");
return;
case BooleanDisplacedInJSStack:
out.print("*bool(", virtualRegister(), ")");
return;
case DirectArgumentsThatWereNotCreated:
out.print("DirectArguments(", nodeID(), ")");
return;
case ClonedArgumentsThatWereNotCreated:
out.print("ClonedArguments(", nodeID(), ")");
return;
case Constant:
out.print("[", inContext(constant(), context), "]");
return;
case DontKnow:
out.printf("!");
return;
}
RELEASE_ASSERT_NOT_REACHED();
}
void ValueRecovery::dump(PrintStream& out) const
{
dumpInContext(out, nullptr);
}
#endif // ENABLE(JIT)
} // namespace JSC
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