[PATCH] Derive interface buffers from max name length

[Bernhard Reutner-Fischer]

On Sat, Oct 21, 2017 at 08:11:24PM +0200, Bernhard Reutner-Fischer wrote:

> >> JFYI I'm contemplating to move the stack-based allocations
> >> to heap-based ones now, starting with gfc_match_name and
> >> gradually moving to pointer comparisons with the stringpool based
> >> identifiers. I'll strive to suggest something for discussion in
> >> smallish steps when it's ready.

So i'm mostly through this.

One thing that is still missing is to hash keywords like basic types,
"ppr@" (decl.c), "kind", "null", module_natures (intrinsic /
non_intrinsic), the "ieee_" stuff in expr.c, things like inquiry_func_f95
and inquiry_func_f2003 in expr.c, intrinsic operators, c_interop_kinds_table
etc, etc.

I initially thought about just hashing just all minit()ed data and maybe
i'll end up doing this anyway. We will then have to add a helper in the
initialization to setup the stringpool nodes. It would be easiest to
just do all (or most) of the minit()ed data and integral types in one
place unless you prefer to push this down to appropriate places where
applicable, like add e.g. the basic type nodes and the "kind" node
in gfc_init_types. Whatever is deemed to be more appropriate. WDYT?

thanks