On 02/27/2013 12:42 PM, Stephen Boyd wrote:
>>
>> It's fine to do your patch as a first step though, which would not
>> change the behavior.
>
> A lot of arches seem to not want to enable it because false positives
> are everywhere. It really depends on how good the compiler is at doing
> constant propagation and dead code removal.
>
Although some of the cases I have seen being flagged as "false
positives" have been real bugs.
-hpa
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