> On 10/14/2015 10:27 AM, Jan Hubicka wrote: > >Hi, > >this patch adds the CONSTRUCTOR case discussed while back. Only empty > >constructors are matched, as those are only appearing in gimple operand. > >I tested that during bootstrap about 7500 matches are for empty ctors. > >There are couple hundred for non-empty probably used on generic. > > > >Bootstrapped/regtested x86_64-linux, OK? > > > >Honza > > > > * fold-const.c (operand_equal_p): Match empty constructors. > OK. It'd be useful to have a test which shows that matching these > results in some kind of difference we can see in the dump files.
I will try to think of something. My main motivation is to get ipa-icf-gimple and operand_equal_p into sync and hopefully comonize the logic. Having testcase then will be a lot easier (any function with empty constructor will do) Honza > > jeff
