[RFA][PATCH] Fix tree-optimization/59919

Jeff Law law@redhat.com
Fri Jan 24 16:51:00 GMT 2014


On 01/24/14 09:41, Jakub Jelinek wrote:
>>
>> The only downside is we lose the ability to backward propagate
>> through a typecast which feeds an argument in such a call.   But
>> that's probably not a big deal.
>
> I couldn't actually reproduce any backwards propagation,
> since now all pointer casts are useless, so the code to walk the pointer
> casts is likely just dead.
I ran across some not terribly long ago and added similar code to DOM. 
You just need to try harder :-)


jeff



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