blob: 162a3723054f7d235fdf540f3429a88065f80712 [file] [log] [blame]
/*
* Copyright (C) 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 "WasmFunctionCodeBlock.h"
#if ENABLE(WEBASSEMBLY)
#include "BytecodeDumper.h"
#include "BytecodeStructs.h"
#include "InstructionStream.h"
#include "LLIntThunks.h"
namespace JSC { namespace Wasm {
void FunctionCodeBlock::setInstructions(std::unique_ptr<InstructionStream> instructions)
{
m_instructions = WTFMove(instructions);
m_instructionsRawPointer = m_instructions->rawPointer();
}
void FunctionCodeBlock::addOutOfLineJumpTarget(InstructionStream::Offset bytecodeOffset, int target)
{
RELEASE_ASSERT(target);
m_outOfLineJumpTargets.set(bytecodeOffset, target);
}
InstructionStream::Offset FunctionCodeBlock::outOfLineJumpOffset(InstructionStream::Offset bytecodeOffset)
{
ASSERT(m_outOfLineJumpTargets.contains(bytecodeOffset));
return m_outOfLineJumpTargets.get(bytecodeOffset);
}
const Instruction* FunctionCodeBlock::outOfLineJumpTarget(const Instruction* pc)
{
int offset = bytecodeOffset(pc);
int target = outOfLineJumpOffset(offset);
return m_instructions->at(offset + target).ptr();
}
unsigned FunctionCodeBlock::addSignature(const Signature& signature)
{
unsigned index = m_signatures.size();
m_signatures.append(&signature);
return index;
}
const Signature& FunctionCodeBlock::signature(unsigned index) const
{
return *m_signatures[index];
}
auto FunctionCodeBlock::addJumpTable(size_t numberOfEntries) -> JumpTable&
{
m_jumpTables.append(JumpTable(numberOfEntries));
return m_jumpTables.last();
}
auto FunctionCodeBlock::jumpTable(unsigned tableIndex) const -> const JumpTable&
{
return m_jumpTables[tableIndex];
}
unsigned FunctionCodeBlock::numberOfJumpTables() const
{
return m_jumpTables.size();
}
} } // namespace JSC::Wasm
#endif // ENABLE(WEBASSEMBLY)