// Warning, do not use the resulting operand with pop instructions, since they
// compute the effective destination address after altering the stack pointer.
// Use toPopOperand if an Operand is needed for a pop.
Operand
MoveEmitterX86::toOperand(const MoveOperand &operand) const
{
if (operand.isMemory() || operand.isEffectiveAddress() || operand.isFloatAddress())
return Operand(toAddress(operand));
if (operand.isGeneralReg())
return Operand(operand.reg());
JS_ASSERT(operand.isFloatReg());
return Operand(operand.floatReg());
}
// Warning, do not use the resulting operand with pop instructions, since they
// compute the effective destination address after altering the stack pointer.
// Use toPopOperand if an Operand is needed for a pop.
Operand
MoveEmitterX86::toOperand(const MoveOperand &operand) const
{
if (operand.isMemory() || operand.isEffectiveAddress() || operand.isFloatAddress()) {
if (operand.base() != StackPointer)
return Operand(operand.base(), operand.disp());
JS_ASSERT(operand.disp() >= 0);
// Otherwise, the stack offset may need to be adjusted.
return Operand(StackPointer, operand.disp() + (masm.framePushed() - pushedAtStart_));
}
if (operand.isGeneralReg())
return Operand(operand.reg());
JS_ASSERT(operand.isFloatReg());
return Operand(operand.floatReg());
}