[polly] r246161 - Do not detect Scops with only one loop.

[Tobias Grosser via llvm-commits]

On 08/28/2015 02:26 PM, Tobias Grosser wrote:
> On 08/28/2015 02:15 PM, Johannes Doerfert wrote:
>> On 08/28, Tobias Grosser wrote:
>>>>> What about the following:
>>>>>
>>>>> Algorithm:
>>>>>
>>>>>    loopNum = 0;
>>>>>
>>>>>    entryNodeLoop = LI->getLoopFor(R->getEntry)
>>>>>
>>>>>    if loop in R
>>>>>      children = loop->getParent()->children
>>>>>    else if loop not in R:
>>>>>      children = loop->children
>>>>>    else // no loop at all
>>>>>      children = LI->getoutermostloops
>>>>>
>>>>>    for child in children
>>>>>      if (R->contains(child)) {
>>>>>        loopNum++;
>>>>>        if (child->subloops > 0)
>>>>>          loopNum++;
>>>>>
>>>>>        if (loopNum >= 2)
>>>>>          return true;
>>>>>      }
>>>>>    return false;

The above fix has been applied in r246433.

Best,
Tobias