Re: test failure with gcc-12 -O3 -march=native

2022-08-11 Thread Andres Freund
Hi, On 2022-08-11 19:08:14 -0700, Andres Freund wrote: > On 2022-08-11 18:24:16 -0700, Andres Freund wrote: > > I'm now bisecting... > > I found the commit triggering it [1]. Oddly it's a change from a few months > ago, and I can reconstruct from dpkg.log and shell history that I definitely > ran

Re: test failure with gcc-12 -O3 -march=native

2022-08-11 Thread Andres Freund
Hi, On 2022-08-11 18:24:16 -0700, Andres Freund wrote: > > > Given that I did not encounter this problem with gcc-12 before, and that > > > gcc-12 has been released, it seems less likely to be a bug in our code > > > highlighted by a new optimization and more likely to be a bug in a gcc > > > bug

Re: test failure with gcc-12 -O3 -march=native

2022-08-11 Thread Andres Freund
Hi, On 2022-08-11 20:06:02 -0500, Justin Pryzby wrote: > On Thu, Aug 11, 2022 at 01:03:43PM -0700, Andres Freund wrote: > > Hi, > > > > For my optimized builds I've long used -O3 -march=native. After one of the > > On what kind of arch ? x86-64 cascadelake. I've since debugged this further. It'

Re: test failure with gcc-12 -O3 -march=native

2022-08-11 Thread Justin Pryzby
On Thu, Aug 11, 2022 at 01:03:43PM -0700, Andres Freund wrote: > Hi, > > For my optimized builds I've long used -O3 -march=native. After one of the On what kind of arch ? > Given that I did not encounter this problem with gcc-12 before, and that > gcc-12 has been released, it seems less likely t

test failure with gcc-12 -O3 -march=native

2022-08-11 Thread Andres Freund
Hi, For my optimized builds I've long used -O3 -march=native. After one of the recent package updates (I'm not certain when exactly yet), the main regression tests started to fail for me with that. Oddly enough in opr_sanity: -- Ask access methods to validate opclasses -- (this replaces a lot o