Bug#809180: clang-3.8 is tuned for k8

[Sylvestre Ledru]

Le 04/09/2016 à 15:57, Vincent Lefevre a écrit :
> On 2016-09-04 15:26:21 +0200, Sylvestre Ledru wrote:
>> Le 27/12/2015 à 23:54, Vincent Lefevre a écrit :
>>> Package: clang-3.8
>>> Version: 1:3.8~svn254193-1
>>> Severity: minor
>>>
>>> clang-3.8 is tuned for k8:
>>>
>>> $ clang-3.8 -dM -E -xc /dev/null | grep __tune_
>>> #define __tune_k8__ 1
>>>
>>> By default, it should not be tuned.
>> What is wrong with k8?
> 
> The processor is not a K8. So, programs that check tune macros
> get wrong tuning information.
> 
Do you have a testcase which demonstrates a negative impact on the binaries generated?

Thanks
S