> > Hi! > > > > IPA-ICF performs some code-generation visible changes from hash table > > traversal, where the hash values can be different between -g and -g0 > > (I bet it hashes DECL_UID in somewhere, perhaps other things). > > It should not - the hash is stable for LTO streaming. > I think ICF merging -g and -g0 function is a valid transform (we could > try to pick the body with debug info in it), but it would be nice to > understand what is causing the differences?
Actually I think we should understand it - otherwise we will continue seeing difference between -g and -g0. At some point we compare easy properties, like number of basic blocks and ssa names. Perhaps those are affected by -g? Honza
