JSObject *
BaselineInspector::commonSetPropFunction(jsbytecode *pc, Shape **lastProperty, JSFunction **commonSetter)
{
if (!hasBaselineScript())
return nullptr;
const ICEntry &entry = icEntryFromPC(pc);
JSObject *holder = nullptr;
Shape *holderShape = nullptr;
JSFunction *setter = nullptr;
for (ICStub *stub = entry.firstStub(); stub; stub = stub->next()) {
if (stub->isSetProp_CallScripted() || stub->isSetProp_CallNative()) {
ICSetPropCallSetter *nstub = static_cast<ICSetPropCallSetter *>(stub);
if (!holder) {
holder = nstub->holder();
holderShape = nstub->holderShape();
setter = nstub->setter();
} else if (nstub->holderShape() != holderShape) {
return nullptr;
} else {
MOZ_ASSERT(setter == nstub->setter());
}
} else if (stub->isSetProp_Fallback() &&
stub->toSetProp_Fallback()->hadUnoptimizableAccess())
{
// We have an unoptimizable access, so don't try to optimize.
return nullptr;
}
}
*lastProperty = holderShape;
*commonSetter = setter;
return holder;
}
bool
BaselineInspector::commonSetPropFunction(jsbytecode* pc, JSObject** holder, Shape** holderShape,
JSFunction** commonSetter, bool* isOwnProperty,
ReceiverVector& receivers,
ObjectGroupVector& convertUnboxedGroups)
{
if (!hasBaselineScript())
return false;
MOZ_ASSERT(receivers.empty());
MOZ_ASSERT(convertUnboxedGroups.empty());
*holder = nullptr;
const ICEntry& entry = icEntryFromPC(pc);
for (ICStub* stub = entry.firstStub(); stub; stub = stub->next()) {
if (stub->isSetProp_CallScripted() || stub->isSetProp_CallNative()) {
ICSetPropCallSetter* nstub = static_cast<ICSetPropCallSetter*>(stub);
bool isOwn = nstub->isOwnSetter();
if (!isOwn && !AddReceiver(nstub->receiverGuard(), receivers, convertUnboxedGroups))
return false;
if (!*holder) {
*holder = nstub->holder();
*holderShape = nstub->holderShape();
*commonSetter = nstub->setter();
*isOwnProperty = isOwn;
} else if (nstub->holderShape() != *holderShape || isOwn != *isOwnProperty) {
return false;
} else {
MOZ_ASSERT(*commonSetter == nstub->setter());
}
} else if (!stub->isSetProp_Fallback() ||
stub->toSetProp_Fallback()->hadUnoptimizableAccess())
{
// We have an unoptimizable access, so don't try to optimize.
return false;
}
}
if (!*holder)
return false;
return true;
}
JSObject *
BaselineInspector::commonSetPropFunction(jsbytecode *pc, Shape **lastProperty, JSFunction **commonSetter)
{
const ICEntry &entry = icEntryFromPC(pc);
for (ICStub *stub = entry.firstStub(); stub; stub = stub->next()) {
if (stub->isSetProp_CallScripted() || stub->isSetProp_CallNative()) {
ICSetPropCallSetter *nstub = static_cast<ICSetPropCallSetter *>(stub);
*lastProperty = nstub->holderShape();
*commonSetter = nstub->setter();
return nstub->holder();
}
}
return nullptr;
}