From: Paul Eggert <eggert@cs.ucla.edu>
To: Bruno Haible <bruno@clisp.org>
Cc: "Mattias Engdegård" <mattiase@acm.org>, bug-gnulib@gnu.org
Subject: Re: __builtin_add_overflow on clang
Date: Tue, 27 Aug 2019 18:06:41 -0700 [thread overview]
Message-ID: <ae028234-3a26-fbd6-7dbd-074f10b52660@cs.ucla.edu> (raw)
In-Reply-To: <2800790.5g4uDhyFEz@omega>
Bruno Haible wrote:
> by assuming that, on a given platform, the compiler-rt of clang
> is found, you are treating clang as a vendor compiler. I.e. you are effectively
> denying the users of these platforms the freedom to rebuild clang from source.
That's a lot more important than getting integer multiplication to work a bit
faster on macOS! So I reverted that macOS performance tweak. Thanks for the
analysis.
prev parent reply other threads:[~2019-08-28 1:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E234D3D1-70C3-468E-9325-5225526B9E44@acm.org>
[not found] ` <5f49721d-6129-38bd-e712-ef4693475cb1@cs.ucla.edu>
[not found] ` <2EDB456C-AB0C-4F64-A8B2-6543A3A4C28D@acm.org>
2019-08-26 2:40 ` __builtin_add_overflow on clang Paul Eggert
2019-08-27 10:33 ` Mattias Engdegård
2019-08-27 11:27 ` Paul Eggert
2019-08-28 0:33 ` Bruno Haible
2019-08-28 1:06 ` Paul Eggert [this message]
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