[llvm-commits] change objectsize signature

[Nuno Lopes]

Hi,

Please find in attach a patch to change the objectsize intrinsic's signature.
My proposal is to add a third parameter to control whether objectsize  
is allowed to perform checks at run-time or not.
This parameter is an integer, and a higher value indicates that you're  
willing to accept a potentially higher run-time performance penalty,  
while 0 means no work at run-time (the current behavior).

The idea is to use this intrinsic, for example, for array bound checking.

Nothing is changed yet in objectsize: this patch only changes the  
signature of the intrinsic and implements an auto-upgrade.

Comments, ideas, etc..?

Thanks,
Nuno
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