Re: toolchain/58505: GCC 12.4.0 on alpha w/ isl broken at -O2

[Tobias Nygren <tnn%NetBSD.org@localhost>]

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

From: Tobias Nygren <tnn%NetBSD.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: toolchain/58505: GCC 12.4.0 on alpha w/ isl broken at -O2
Date: Fri, 2 Aug 2024 13:30:02 +0200

 [category alpha->toolchain] 
 
 > Rin Okuyama writes:
 > > I've found this is due to isl
 
 I guess isl-enabled GCC miscompiles parts of GCC. It does not
 necessarily have to be just the isl code that gets miscompiled.
 
 matthew green <mrg%eterna23.net@localhost> wrote:
 > at worst, we can just disable isl for alpha.
 
 Are there Linux distros that build GCC with isl for alpha?
 (Are there even Linux distros that still support alpha?)
 
 Until we can find the miscompiled code and upstream a
 fix, I'm in favor of rerunning mknative --without-isl.