On Thu, Sep 11, 2014 at 6:19 PM, Bernd Schmidt wrote: >>> What do you expect that function to do different? It returns the correct >>> value. >>> >> >> No different. Just that if you want to check whether DECL is a global >> variable then we have a predicate for it. So why use TREE_STATIC >> instead? >> >> In other words: Just trying to make/keep certain checks consistent. (A >> hopeless cause, but a noble one... ;-) > > > You're talking about a different patch here. This one is about > num_sign_bit_copies.
Ah. *sigh* can't even keep two patches in my mind at any one time. The point about num_sign_bit_copies is that it doesn't really return the correct value IMHO, if there isn't really a correct value to speak of: What is the sign of TRUE or FALSE, the only two values a BImode value can take? A 1-bit precision integer can have value 0 or -1 and in that case num_sign_bit_copies should be 0. But for a BImode value, it seems to me that asking for the sign bit or sign bit copies is just wrong. Ciao! Steven
