On Wed, 30 Jun 2021 at 17:06, Richard Biener <richard.guent...@gmail.com> wrote: > > On June 30, 2021 4:07:00 PM GMT+02:00, Erick Ochoa via Gcc <gcc@gcc.gnu.org> > wrote: > >Hi, > > > >I am still working on understanding the LTO framework and how the > >gimple representation works across multiple partitions. I found myself > >printing all global variables and printing their DECL_UID. I noticed > >that for some variables, their DECL_UIDs were different across > >different partitions. That is, a single global variable has different > >DECL_UIDs in different partitions. Is this the correct behaviour? > > Yes. > > My > >understanding of DECL_UID is that for every declaration there is a > >unique identifier, but is this not the case during LTO? > > It's also true for WPA and LTrans a variables UID is just not the same in all > of them because there's no way to ensure that. >
So how would I be able to say that two different declarations are the same variable?
