https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121938
--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #10)
> Looks like something changed between gcc 6 and 7 but I can't figure it out
> by just looking into changelog.
Bisections says r246965 changed it:
PR middle-end/79788
PR middle-end/80375
* c-common.c (c_common_type_for_mode): Don't handle
widest_*_literal_type_node here.
c_common_signed_or_unsigned_type): Likewise.
(c_common_nodes_and_builtins): Set widest_*_literal_type_node
to *intTI_type_node or *intDI_type_node depending on whether
TImode is supported by the target or not.
* gcc.dg/pr79788-1.c: New test.
* gcc.dg/pr79788-2.c: New test.
