GTY / gengtype question - adding a new header file

[Matthew Fortune]

Steve Ellcey <Steve.Ellcey@imgtec.com> writes:
> On Tue, 2015-09-01 at 10:13 +0200, Georg-Johann Lay wrote:
> 
> >
> > I'd have a look at what BEs are using non-default target_gtfiles.
> >
> > Johann
> 
> There are a few BEs that add a .c file to target_gtfiles, but no
> platforms that add a .h file to target_gtfiles.  I do see a number
> of platforms that define the machine_function structure in their header
> file (aarch64.h, pa.h, i386.h) instead of their .c file though.
> 
> Maybe that is a better way to go for MIPS instead of doing something
> completely new.  If I move machine_function, mips_frame_info,
> mips_int_mask, and mips_shadow_set from mips.c to mips.h then I could
> put my new machine specific pass in a separate .c file from mips.c and
> not need to do anything with target_gtfiles.  The only reason I didn't
> want to do this was so that machine_function wasn't visible to the rest
> of GCC but that doesn't seem to have been an issue for other targets.

Personally I quite like the idea of separating out code if at all possible
so having to expose a bit more of the MIPS backend internals does not
seem like too high a cost.

Matthew