void JIT::emit_op_bitand(Instruction* currentInstruction)
{
unsigned result = currentInstruction[1].u.operand;
unsigned op1 = currentInstruction[2].u.operand;
unsigned op2 = currentInstruction[3].u.operand;
if (isOperandConstantImmediateInt(op1)) {
emitGetVirtualRegister(op2, regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
int32_t imm = getConstantOperandImmediateInt(op1);
andPtr(Imm32(imm), regT0);
if (imm >= 0)
emitFastArithIntToImmNoCheck(regT0, regT0);
} else if (isOperandConstantImmediateInt(op2)) {
emitGetVirtualRegister(op1, regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
int32_t imm = getConstantOperandImmediateInt(op2);
andPtr(Imm32(imm), regT0);
if (imm >= 0)
emitFastArithIntToImmNoCheck(regT0, regT0);
} else {
emitGetVirtualRegisters(op1, regT0, op2, regT1);
andPtr(regT1, regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
}
emitPutVirtualRegister(result);
}
void JITCompiler::compileExceptionHandlers()
{
if (m_exceptionChecks.empty() && m_exceptionChecksWithCallFrameRollback.empty())
return;
Jump doLookup;
if (!m_exceptionChecksWithCallFrameRollback.empty()) {
// Remove hostCallFrameFlag from caller.
m_exceptionChecksWithCallFrameRollback.link(this);
emitGetCallerFrameFromCallFrameHeaderPtr(GPRInfo::argumentGPR0);
andPtr(TrustedImm32(safeCast<int32_t>(~CallFrame::hostCallFrameFlag())), GPRInfo::argumentGPR0);
doLookup = jump();
}
if (!m_exceptionChecks.empty())
m_exceptionChecks.link(this);
// lookupExceptionHandler is passed one argument, the exec (the CallFrame*).
move(GPRInfo::callFrameRegister, GPRInfo::argumentGPR0);
if (doLookup.isSet())
doLookup.link(this);
#if CPU(X86)
// FIXME: should use the call abstraction, but this is currently in the SpeculativeJIT layer!
poke(GPRInfo::argumentGPR0);
#endif
m_calls.append(CallLinkRecord(call(), lookupExceptionHandler));
jumpToExceptionHandler();
}
