re: port-alpha/58505: GCC 12.4.0 on alpha broken at -O2

[matthew green <mrg%eterna23.net@localhost>]

The following reply was made to PR port-alpha/58505; it has been noted by GNATS.

From: matthew green <mrg%eterna23.net@localhost>
To: Rin Okuyama <rokuyama.rk%gmail.com@localhost>
Cc: gnats-bugs%netbsd.org@localhost, port-alpha-maintainer%netbsd.org@localhost,
    gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, tnn%nygren.pp.se@localhost
Subject: re: port-alpha/58505: GCC 12.4.0 on alpha broken at -O2
Date: Fri, 02 Aug 2024 18:26:05 +1000

 Rin Okuyama writes:
 > I've found this is due to isl; the failure started from mknative for
 > this change:
 
 how strange.
 
 can you try disabling the things that isl enables?  each alone
 or in groups might be necessary to track better..  eg, these if
 they're enabled:
 
 	-ftree-loop-linear
 	-floop-strip-mine
 	-floop-block
 	-fgraphite-identity
 	-floop-nest-optimize
 	-floop-parallelize-all
 
 at worst, we can just disable isl for alpha.
 
 good find, thanks.
 
 
 .mrg.