llvm dev - Sep 2016 - clang/llvm 3.9 bug

Hi,

Please find attached a short c test program which does not behave correctly
with clang 3.9.
I'm running ubuntu 16.04 64bit

clang bug.c
./a.out for gcc 5.4.0 / clang3.8 output:
1 1 0 1
1 1 0 1
./a.out for clang3.9 output:
0 0 0 0
0 0 0 0

Is that a regression?

Regards,
Christophe
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20160927/1abcc873/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: bug.c
Type: text/x-csrc
Size: 1268 bytes
Desc: not available
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20160927/1abcc873/attachment.c>

On 9/27/2016 7:24 AM, Christophe Duvernois via llvm-dev
wrote:
> Hi,
>
> Please find attached a short c test program which does not behave 
> correctly with clang 3.9.
> I'm running ubuntu 16.04 64bit
>
> clang bug.c
> ./a.out for gcc 5.4.0 / clang3.8 output:
> 1 1 0 1
> 1 1 0 1
> ./a.out for clang3.9 output:
> 0 0 0 0
> 0 0 0 0
>
> Is that a regression?
This is an intentional change; see 
https://llvm.org/bugs/show_bug.cgi?id=28510 .

-Eli

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux
Foundation Collaborative Project

Ok thank you for the information!

2016-09-27 19:11 GMT+02:00 Friedman, Eli <efriedma at codeaurora.org>:
> On 9/27/2016 7:24 AM, Christophe Duvernois via llvm-dev wrote:
>
>> Hi,
>>
>> Please find attached a short c test program which does not behave
>> correctly with clang 3.9.
>> I'm running ubuntu 16.04 64bit
>>
>> clang bug.c
>> ./a.out for gcc 5.4.0 / clang3.8 output:
>> 1 1 0 1
>> 1 1 0 1
>> ./a.out for clang3.9 output:
>> 0 0 0 0
>> 0 0 0 0
>>
>> Is that a regression?
>>
>
> This is an intentional change; see https://llvm.org/bugs/show_bug
> .cgi?id=28510 .
>
> -Eli
>
> --
> Employee of Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux
> Foundation Collaborative Project
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20160927/811a427f/attachment.html>