On 11/6/26 12:33 PM, Camm Maguire wrote:
Greetings!
Raymond Toy<[email protected]> writes:
On 10/24/26 5:15 AM, Camm Maguire wrote:
Greetings, and thanks so much for the report! This is "fixed" now in
master.
Thanks for the quick fix! Also, it’s a regression. 2.6.14 doesn’t have this
problem. And finally, using stable-sort doesn’t have this problem
either in 2.7.2.
Yes, 2.6.14 could do no source inlining, obscuring the bug.
That would explain it.
I could help, but I’d need lots of guidance on what to look for.
What a kind and generous offer!
The current status is here:
https://reproduce.debian.net/amd64/api/v1/builds/300525/log
https://reproduce.debian.net/amd64/api/v1/builds/300525/artifacts/830481/diffoscope
GCL learns (computes inlines) as it compiles itself, so there is a kind
of memoization to the bootstrap which could pose a race condition when
using a parallel build. These logs however were with one make job.
Small differences, in the gensym counter in a few files, and a missed
computed inline or two. It would appear there is some other entry of
the build time into the process, but the one I know of, to seed the
random number generator, in synchronized in the rebuild via the
environment variable SOURCE_DATE_EPOCH.
Anyway, perhaps Claude can think of something and save us some time.
I very briefly skimmed the log. Not sure what I’m looking for or if AI
could help figure out the underlying option.
I personally don’t care about parallel builds, if we’re talking about
building gcl. It is kind of slow, but I rarely ever build gcl. I guess
that’s different for you.
Take care,
Take care,
Raymond Toy<[email protected]> writes:
While working on some things in maxima, I found that gcl was incorrectly
computing some numerical results. With
help from Claude, it was
isolated to a bug in sort.
Load the attached file to see the issue. I’m using gcl (that I compiled myself):
(lisp-implementation-version)
"GCL 2.7.1 git tag Version_2_7_2pre15"
I get:
(load "gcl-sort-bug.lisp")
...
direct-gf (1.0 2.0 3.0)
dbind-cl (2.0 1.0 3.0) <-- expected (1.0 2.0 3.0)
dbind-fun (2.0 1.0 3.0) <-- expected (1.0 2.0 3.0)
dbind-gf (2.0 1.0 3.0) <-- expected (1.0 2.0 3.0)
setf-cl (2.0 1.0 3.0) <-- expected (1.0 2.0 3.0)
setf-fun (2.0 1.0 3.0) <-- expected (1.0 2.0 3.0)
setf-gf (2.0 1.0 3.0) <-- expected (1.0 2.0 3.0)
vector-gf (1.0 2.0 3.0)
6 of 10 failed
;; Finished loading "gcl-sort-bug"
​
​
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