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From: Rich Felker <dalias@libc.org>
To: "joao@overdrivepizza.com" <joao@overdrivepizza.com>
Cc: musl@lists.openwall.com
Subject: Re: [musl] -frounding-math breaking src/math/acosf.c
Date: Fri, 9 Oct 2020 19:10:00 -0400	[thread overview]
Message-ID: <20201009231000.GB17637@brightrain.aerifal.cx> (raw)
In-Reply-To: <7a9c-5f80e100-115-af27520@104527809>

On Sat, Oct 10, 2020 at 12:16:13AM +0200, joao@overdrivepizza.com wrote:
> Hi,
> 
> I just noticed that the upstream LLVM is no longer capable of
> compiling musl 1.2.0 (and possibly more recent versions too) when
> -frounding-math is in use. I bisected the LLVM commit to
> https://reviews.llvm.org/D87822, and pointed the problem there.
> 
> Just reporting in case someone else also has issues with this.
> 
> Best,
> Joao.

Thanks. This probably needs to be reported as aa bug against LLVM (or
clang?) rather than just a comment on the review so that it's tracked
as such. It seems they've erroneously made it treat static
initializers as non-constant-expressions rather than evaluating them
statically in the default rounding mode per the spec.

Rich

  reply	other threads:[~2020-10-09 23:10 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-09 22:16 joao
2020-10-09 23:10 ` Rich Felker [this message]
2020-10-09 23:15   ` joao
2020-10-12  9:39   ` Szabolcs Nagy
2020-12-18 17:13     ` Fangrui Song

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