Source/JavaScriptCore/wasm/WasmOpcodeOrigin.cpp

/*
 * Copyright (C) 2017-2022 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
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 *    notice, this list of conditions and the following disclaimer in the
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 *
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 * 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
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#include "config.h"
#include "WasmOpcodeOrigin.h"

#include "B3Origin.h"

#include <wtf/text/MakeString.h>

#if ENABLE(WEBASSEMBLY)

namespace JSC { namespace Wasm {


#if ENABLE(WEBASSEMBLY_OMGJIT)
OpcodeOrigin::OpcodeOrigin(B3::Origin origin)
{
    ASSERT(origin.isPackedWasmOrigin());
    packedData = origin.m_data.bits();
}

B3::Origin OpcodeOrigin::asB3Origin()
{
    return B3::Origin(packedData);
}
#endif

ASCIILiteral OpcodeOrigin::opcodeString() const
{
    switch (opcode()) {
#if USE(JSVALUE64)
    case OpType::ExtGC:
        return makeString(gcOpcode());
    case OpType::Ext1:
        return makeString(ext1Opcode());
    case OpType::ExtSIMD:
        return makeString(simdOpcode());
    case OpType::ExtAtomic:
        return makeString(atomicOpcode());
#endif
    default:
        return makeString(opcode());
    }
}

void OpcodeOrigin::dump(PrintStream& out) const
{
    out.print("{opcode: ", opcodeString(), ", location: ", RawHex(location()), "}");
}

static_assert(sizeof(OpcodeOrigin) == sizeof(uint64_t), "this packing doesn't work if this isn't the case");
#if ENABLE(WEBASSEMBLY_OMGJIT)
static_assert(sizeof(B3::Origin) == sizeof(uint64_t), "this packing doesn't work if this isn't the case");
#endif

} } // namespace JSC::Wasm

#endif // ENABLE(WEBASSEMBLY)