On Mon, May 16, 2016 at 8:48 PM, Jeff Law <l...@redhat.com> wrote: > On 05/12/2016 08:29 AM, David Malcolm wrote: >> >> >> One wart I ran into is that system.h has this: >> >> /* Front ends should never have to include middle-end headers. Enforce >> this by poisoning the header double-include protection defines. */ >> #ifdef IN_GCC_FRONTEND >> #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H >> #endif >> >> i.e. the idea of running RTL code from inside the C frontend seems to >> be banned. > > Yea, we really don't want the front-ends to know about the guts of RTL. This > work would seem to violate that guiding principle. > > I'd be more in favor of a true RTL front-end rather than bolting it onto the > side of the C front-end.
It will require inventing sth new for types and decls though. Which I expect to be the majority of the new frontend then (similar to the GIMPLE FE). I don't think that's desirable. Richard. > jeff >
