#ifndef JITStubCall_h
#define JITStubCall_h
#include <wtf/Platform.h>
#if ENABLE(JIT)
namespace JSC {
class JITStubCall {
public:
JITStubCall(JIT* jit, JSObject* (JIT_STUB *stub)(STUB_ARGS_DECLARATION))
: m_jit(jit)
, m_stub(reinterpret_cast<void*>(stub))
, m_returnType(Value)
, m_argumentIndex(1) {
}
JITStubCall(JIT* jit, JSPropertyNameIterator* (JIT_STUB *stub)(STUB_ARGS_DECLARATION))
: m_jit(jit)
, m_stub(reinterpret_cast<void*>(stub))
, m_returnType(Value)
, m_argumentIndex(1) {
}
JITStubCall(JIT* jit, void* (JIT_STUB *stub)(STUB_ARGS_DECLARATION))
: m_jit(jit)
, m_stub(reinterpret_cast<void*>(stub))
, m_returnType(Value)
, m_argumentIndex(1) {
}
JITStubCall(JIT* jit, int (JIT_STUB *stub)(STUB_ARGS_DECLARATION))
: m_jit(jit)
, m_stub(reinterpret_cast<void*>(stub))
, m_returnType(Value)
, m_argumentIndex(1) {
}
JITStubCall(JIT* jit, void (JIT_STUB *stub)(STUB_ARGS_DECLARATION))
: m_jit(jit)
, m_stub(reinterpret_cast<void*>(stub))
, m_returnType(Void)
, m_argumentIndex(1) {
}
void addArgument(JIT::Imm32 argument)
{
m_jit->poke(argument, m_argumentIndex);
++m_argumentIndex;
}
void addArgument(JIT::ImmPtr argument)
{
m_jit->poke(argument, m_argumentIndex);
++m_argumentIndex;
}
void addArgument(JIT::RegisterID argument)
{
m_jit->poke(argument, m_argumentIndex);
++m_argumentIndex;
}
void addArgument(unsigned src, JIT::RegisterID scratchRegister) {
if (m_jit->m_codeBlock->isConstantRegisterIndex(src))
addArgument(JIT::ImmPtr(JSValue::encode(m_jit->m_codeBlock->getConstant(src))));
else {
m_jit->loadPtr(JIT::Address(JIT::callFrameRegister, src * sizeof(Register)), scratchRegister);
addArgument(scratchRegister);
}
m_jit->killLastResultRegister();
}
JIT::Call call()
{
ASSERT(m_jit->m_bytecodeIndex != (unsigned)-1);
#if ENABLE(OPCODE_SAMPLING)
m_jit->sampleInstruction(m_jit->m_codeBlock->instructions().begin() + m_jit->m_bytecodeIndex, true);
#endif
m_jit->restoreArgumentReference();
JIT::Call call = m_jit->call();
m_jit->m_calls.append(CallRecord(call, m_jit->m_bytecodeIndex, m_stub));
#if ENABLE(OPCODE_SAMPLING)
m_jit->sampleInstruction(m_jit->m_codeBlock->instructions().begin() + m_jit->m_bytecodeIndex, false);
#endif
m_jit->killLastResultRegister();
return call;
}
JIT::Call call(unsigned dst) {
ASSERT(m_returnType == Value);
JIT::Call call = this->call();
m_jit->emitPutVirtualRegister(dst);
return call;
}
JIT::Call call(JIT::RegisterID dst)
{
ASSERT(m_returnType == Value);
JIT::Call call = this->call();
if (dst != JIT::returnValueRegister)
m_jit->move(JIT::returnValueRegister, dst);
return call;
}
private:
JIT* m_jit;
void* m_stub;
enum { Value, Void } m_returnType;
size_t m_argumentIndex;
};
class CallEvalJITStub : public JITStubCall {
public:
CallEvalJITStub(JIT* jit, Instruction* instruction)
: JITStubCall(jit, JITStubs::cti_op_call_eval)
{
int callee = instruction[2].u.operand;
int argCount = instruction[3].u.operand;
int registerOffset = instruction[4].u.operand;
addArgument(callee, JIT::regT2);
addArgument(JIT::Imm32(registerOffset));
addArgument(JIT::Imm32(argCount));
}
};
}
#endif // ENABLE(JIT)
#endif // JITStubCall_h