Re: netbsd-11 gcc bug

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At Thu, 28 May 2026 19:04:07 -0400, Jason Thorpe <[email protected]> wrote:
Subject: Re: netbsd-11 gcc bug
>=20
>=20
> > On May 28, 2026, at 5:40 PM, Greg A. Woods <[email protected]>
> > wrote:
> >  The reason for the "belief" that UB is (often) related to
> > optimizers is squarely resting on the fact that when the
> > optimizer is turned off then the UB goes away.  So it's not
> > really a belief -- it's a demonstrable fact!
>=20
> Eh.. The undefined behavior doesn t go away, per se, it just is
> undefined differently :-)
>=20
> Maybe a better say to state it is:  when the optimizer is turned
> off, the unexpected behavior goes away .

Yes, indeed that's much more like what I meant!  A different expansion
of the abbreviation "UB"!

--=20
					Greg A. Woods <[email protected]>

Kelowna, BC     +1 250 762-7675           RoboHack <[email protected]>
Planix, Inc. <[email protected]>     Avoncote Farms <[email protected]>

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