Re: Basic speculation support for polymorphic_call_context

2014-07-28 Thread Jan Hubicka
> Jan Hubicka writes: > > > There are similar testcases in bugzilla where we do not devirtualize > > because we > > lost track of type promises C++ language makes on memory accesses. This may > > give us a clue how common these are. > > How would the user know without some optional warning? I

Re: Basic speculation support for polymorphic_call_context

2014-07-28 Thread Andi Kleen
Jan Hubicka writes: > There are similar testcases in bugzilla where we do not devirtualize because > we > lost track of type promises C++ language makes on memory accesses. This may > give us a clue how common these are. How would the user know without some optional warning? -Andi