From what I can see it has only been "repeatedly shown to do" it when you explicitly try to force it to do it (e.g. adding those Quake specific comments to brin

From what I can see it has only been "repeatedly shown to do" it when you explicitly try to force it to do it (e.g. adding those Quake specific comments to bring out the fast inverse square root code). I want to see a serious analysis of Microsoft's claim that it only happens 0.1% of the times. Has it actually been debunked?