Re: NetBSD/vax 11.0_RC2

[Ken Wellsch <kwellsch%tampabay.rr.com@localhost>]

Thank you, Matthew!  After a fresh install of NetBSD-11.0_RC2,
I applied this patch.  Using SimH 3.12-5 (256M) I was able
to build tools successfully!

===> Tools built to /usr/obj/tooldir.NetBSD-11.0_RC2-vax
===> build.sh ended:      Wed Mar 25 23:34:49 EDT 2026
===> Summary of results:
         build.sh command:    ./build.sh -U -u -O /usr/obj -m vax tools
         build.sh started:    Wed Mar 25 07:42:26 EDT 2026
         NetBSD version:      11.0_RC2
         MACHINE:             vax
         MACHINE_ARCH:        vax
         Build platform:      NetBSD 11.0_RC2 vax
         HOST_SH:             /bin/sh
         No $TOOLDIR/bin/nbmake, needs building.
         Bootstrapping nbmake
         share/mk MAKECONF:   /etc/mk.conf
         MAKECONF file:       /etc/mk.conf (File not found)
         TOOLDIR path:        /usr/obj/tooldir.NetBSD-11.0_RC2-vax
         DESTDIR path:        /usr/obj/destdir.vax
         RELEASEDIR path:     /usr/obj/releasedir
         Created /usr/obj/tooldir.NetBSD-11.0_RC2-vax/bin/nbmake
         Updated makewrapper: /usr/obj/tooldir.NetBSD-11.0_RC2-vax/bin/nbmake-vax
         Tools built to /usr/obj/tooldir.NetBSD-11.0_RC2-vax
         build.sh ended:      Wed Mar 25 23:34:49 EDT 2026
===> .

On Wed, Mar 25, 2026 at 04:52:20PM +1100, matthew green wrote:
> i haven't yet gotten far figuring out the real hang that
> gcc 12 gimple-match.cc triggers, but i have found that
> before upstream broke it into 10 files, they reduced the
> size of the output significantly, and it seems to allow
> compiling this file with 256mb ram in simh.
> 
>    https://www.netbsd.org/~mrg/nb-gcc12-genmatch1.diff
> 
> this combines 4 mainline GCC changes that reduce the
> generated file to about 2/3rds the original.
> 
> i've been testing this change on netbsd-11's GCC 12 for
> several platforms and it seems not to introduce any
> failures for me -- i've also been testing it in pkgsrc
> gcc12 on arm64, powerpc, and amd64 so far.
> 
> 
> i am curious what others find with this patch.  it is for
> netbsd-11 src/external/gpl3/gcc/dist/gcc or, in current,
> gcc.old/dist/gcc (only really relevant for m68k, sh3, and
> alpha who are still using GCC 12 there.)
> 
> (this problem isn't in -current's GCC 14, since the above
> patch plus something to split the output into 10 files is
> in that tree already, and it's better from a total ram
> size / total paralellism POV.)
> 
> 
> .mrg.