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From: Philipp Stephani <p.stephani2@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>, 26597@debbugs.gnu.org
Subject: bug#26597: 25.1; Compilation error on master with --enable-check-lisp-object-type
Date: Mon, 01 May 2017 14:33:28 +0000	[thread overview]
Message-ID: <CAArVCkRuE2c05t1CxG5qW4g+v3LWdGo+9DcXGHA2rYb5Pf5GXg@mail.gmail.com> (raw)
In-Reply-To: <jwvmvawn5af.fsf-monnier+gmane.emacs.devel@gnu.org>

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Stefan Monnier <monnier@iro.umontreal.ca> schrieb am Mo., 1. Mai 2017 um
15:01 Uhr:

> > Replacing a primitive value with a struct containing such a value
> > should never degrade performance; that would be a compiler bug.
>
> FWIW, No, compilers do not guarantee that semantically-equivalent
> programs will be compiled to code with equivalent performance, so it
> wouldn't be a bug.  It's only a "quality of implementation" issue.
>

Yes, I mean "bug" in a wider sense that includes QoI issues.

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      reply	other threads:[~2017-05-01 14:33 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-21 20:05 bug#26597: 25.1; Compilation error on master with --enable-check-lisp-object-type Philipp Stephani
2017-04-22  7:42 ` Eli Zaretskii
2017-04-22 11:57   ` Philipp Stephani
2017-04-22 13:35     ` Andreas Schwab
2017-05-01 11:26       ` Philipp Stephani
2017-04-22 13:36     ` Eli Zaretskii
2017-05-01 11:32       ` Enabling --enable-check-lisp-object-type by default on x86 and AMD64 (was: Re: bug#26597: 25.1; Compilation error on master with --enable-check-lisp-object-type) Philipp Stephani
2017-05-02 22:14         ` Enabling --enable-check-lisp-object-type by default on x86 and AMD64 Paul Eggert
2017-05-03  2:38           ` Eli Zaretskii
2017-05-03  3:24             ` Paul Eggert
2017-05-03 14:48               ` Eli Zaretskii
2017-05-03 18:08                 ` Paul Eggert
2017-05-03 18:22                   ` Eli Zaretskii
2017-05-04 14:33                     ` Eli Zaretskii
2017-05-05 23:23                     ` Paul Eggert
2017-05-06  7:07                       ` Eli Zaretskii
2017-05-06 23:23                         ` Paul Eggert
2017-05-01 12:20     ` bug#26597: 25.1; Compilation error on master with --enable-check-lisp-object-type Stefan Monnier
2017-05-01 14:33       ` Philipp Stephani [this message]

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