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[188.150.171.209]) by smtp.gmail.com with ESMTPSA id n17-20020a195511000000b004dda74162a8sm447812lfe.40.2023.02.24.11.33.27 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 24 Feb 2023 11:33:28 -0800 (PST) In-Reply-To: <87v8jrdnbp.fsf@web.de> X-Mailer: Apple Mail (2.3654.120.0.1.14) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:256651 Archived-At: --Apple-Mail=_E18701A5-BFB5-4DA2-BC72-41FD949D898D Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii 24 feb. 2023 kl. 17.45 skrev Michael Heerdegen = : > Instead of "(setq _ ..." you could better use "(ignore ..." I would very much like `ignore` to work that way but it currently = doesn't. This is probably a bug. Stefan, what about the attached patch? (I already pushed a fix for proper for-effect behaviour of = with-suppressed-warnings to master; hope that is all right.) --Apple-Mail=_E18701A5-BFB5-4DA2-BC72-41FD949D898D Content-Disposition: attachment; filename=compile-ignore.diff Content-Type: application/octet-stream; x-unix-mode=0644; name="compile-ignore.diff" Content-Transfer-Encoding: 7bit diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el index 095468ad978..457efe73886 100644 --- a/lisp/emacs-lisp/bytecomp.el +++ b/lisp/emacs-lisp/bytecomp.el @@ -4329,7 +4329,11 @@ byte-compile-goto-if (defun byte-compile-ignore (form) (dolist (arg (cdr form)) - (byte-compile-form arg t)) + ;; Compile args for value (to avoid warnings about unused values), + ;; emit a discard after each, and trust the LAP peephole optimiser + ;; to annihilate useless ops. + (byte-compile-form arg) + (byte-compile-discard)) (byte-compile-form nil)) ;; Return the list of items in CONDITION-PARAM that match PRED-LIST. --Apple-Mail=_E18701A5-BFB5-4DA2-BC72-41FD949D898D--