Subject: Re: bug#16304: Upcoming clang-3.4 apparently miscompiles coreutils.

From: Pádraig Brady <[email-masked]>
Date: Mon, 30 Dec 2013 18:47:11 +0000

On 12/30/2013 12:32 PM, Markus Trippelsdorf wrote:
> coreutils-8.22 build with clang-3.4 doesn't copy permissions correctly:
> 
> markus@x4 tmp % touch test1
> markus@x4 tmp % chmod 600 test1
> markus@x4 tmp % ls -al test1
> -rw------- 1 markus markus 0 Dec 30 13:25 test1
> markus@x4 tmp % /var/tmp/coreutils-8.22/src/cp test1 test2
> markus@x4 tmp % ls -al test2
> ---------- 1 markus markus 0 Dec 30 13:25 test2
> markus@x4 tmp %

Ouch.

Note as part of the 8.22 release process
I did verify that `make check` passed with
clang-3.3-3.fc20.x86_64

I've again verified that clang-3.3 passes your test above.

Can you pinpoint the erroneous code?
It does seem like a clang regression TBH.

thanks,
Pádraig.