https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87188
--- Comment #8 from Martin Jambor <jamborm at gcc dot gnu.org> --- (In reply to dave.anglin from comment #7) > On 2018-09-05 4:55 AM, jamborm at gcc dot gnu.org wrote: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87188 > > > > --- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> --- > > I cannot see anything wrong with the dump excerpt that you posted > > above. SRA saw a structure that is not addressable and with only > > local uses and decided to scalarize it, the pointer is now in SR.13_3 > > and all accesses to __pfn should be replaced with that. The > > comparison is converted. > Is the fact that _pfn was a pointer to a function retained in SR.13_3? Yes, the dump says: bool SV::<T4394> (const struct SV *, const struct SV &) * SR.13; which looks exactly like the type in the structure. > > If the *type* of D.43111 is somehow special in a way that is > > undetectable to a tree pass, it (again, the type) should have > > TREE_ADDRESSABLE set. > I don't think the type of D.43111 is special other than it contains a > field that is a function pointer. > Then I believe SRA is not the culprit, you probably need to trace what happens to SR.13 afterwards and whether it is correctly expanded to RTL.
