GNU bug report logs -
#65527
30.0.50; native compilation: type optimization does not always work for `lisp' return value
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bug#65527
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(Fri, 25 Aug 2023 10:56:02 GMT)
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Ihor Radchenko <yantar92 <at> posteo.net>
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
X-Debbugs-CC: acorallo <at> gnu.org
Hi,
Following up https://yhetil.org/emacs-devel/yp1pm3b7a2x.fsf <at> fencepost.gnu.org
When we have
(defun test1 ()
(let ((x (list 'a 'b 'c)))
(when (listp x) "Return value")))
native compilation, fails to optimize away the `listp' return value
despite it is known that x is a list at compile time.
In GNU Emacs 30.0.50 (build 58, x86_64-pc-linux-gnu, GTK+ Version
3.24.38, cairo version 1.17.8) of 2023-08-24 built on localhost
Repository revision: 476db65dc780d8c501d73dfaaf92c53eb9c73b2f
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101008
System Description: Gentoo Linux
Configured using:
'configure --with-native-compilation
JAVAC=/etc/java-config-2/current-system-vm/bin/javac'
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
Information forwarded
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bug-gnu-emacs <at> gnu.org
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bug#65527
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emacs
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(Fri, 25 Aug 2023 11:46:02 GMT)
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Message #8 received at 65527 <at> debbugs.gnu.org (full text, mbox):
Ihor Radchenko <yantar92 <at> posteo.net> writes:
> X-Debbugs-CC: acorallo <at> gnu.org
>
> Hi,
>
> Following up https://yhetil.org/emacs-devel/yp1pm3b7a2x.fsf <at> fencepost.gnu.org
>
> When we have
>
> (defun test1 ()
> (let ((x (list 'a 'b 'c)))
> (when (listp x) "Return value")))
>
> native compilation, fails to optimize away the `listp' return value
> despite it is known that x is a list at compile time.
>
Thanks, will look at.
Andrea
This bug report was last modified 1 year and 191 days ago.
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