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bug#51104: comp-tests.elc messes up after reconfiguring for different ma
From: |
Lars Ingebrigtsen |
Subject: |
bug#51104: comp-tests.elc messes up after reconfiguring for different machine |
Date: |
Mon, 12 Sep 2022 13:15:56 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Paul Eggert <eggert@cs.ucla.edu> writes:
> When trying out the emacs-28 branch on both 32- and 64-bit platforms,
> I had test failures that I tracked down to this line:
>
> test/src/comp-tests.el:933: (integer ,most-negative-fixnum
> ,most-positive-fixnum))
>
> My problem was that I'd built test/src/comp-tests.elc on a 32-bit
> platform (using "./configure CC='gcc -m32'" on an x86-64 machine) so
> that .elc file had been built assuming 32-bit values for
> most-negative-fixnum and most-positive fixnum. When I then re-ran
> 'configure' for a 64-bit platform the .elc files were not
> automatically rebuilt for it (they're supposed to be
> machine-independent, right?) and so the optimizations were incorrect
> for a 64-bit platform and the tests failed.
>
> What's a good way to fix this problem, while still testing everything
> that comp-tests.el wants to test?
This was a year ago, but the code in question seems unchanged now on
"master":
;; 14
((defun comp-tests-ret-type-spec-f (x)
(comp-hint-fixnum x))
(integer ,most-negative-fixnum ,most-positive-fixnum))
So I guess the problem is still present? (I haven't tested myself.)
Andrea, do you see any way to fix this test for this 32-bit/64-bit
scenarion?
- bug#51104: comp-tests.elc messes up after reconfiguring for different machine,
Lars Ingebrigtsen <=