Buggy vectorization of dot products

Hi Michael,

please address this issue when you get a chance.

On Fri, Mar 14, 2014 at 7:02 AM, Роман Донченко <email address hidden> wrote:
> Public bug reported:
>
> There's a bug in GCC 4.8 related to vectorization of dot product-like
> code: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60196.
>
> 4.8 is the only upstream branch that's affected, however, you seem to
> have backported the revision introducing the bug (r185437) into 4.6 and
> 4.7 as well, and those are now affected as well. Since the fix is
> already available (r202663), please backport it to the affected
> branches.
>
> ** Affects: gcc-linaro
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are a member of Linaro
> Toolchain Developers, which is subscribed to Linaro GCC.
> https://bugs.launchpad.net/bugs/1292489
>
> Title:
> Buggy vectorization of dot products
>
> Status in Linaro GCC:
> New
>
> Bug description:
> There's a bug in GCC 4.8 related to vectorization of dot product-like
> code: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60196.
>
> 4.8 is the only upstream branch that's affected, however, you seem to
> have backported the revision introducing the bug (r185437) into 4.6
> and 4.7 as well, and those are now affected as well. Since the fix is
> already available (r202663), please backport it to the affected
> branches.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/gcc-linaro/+bug/1292489/+subscriptions

--
Ryan S. Arnold
Linaro Toolchain Working Group
www.linaro.org

Thanks, We'll address.

When do you want me to address this? After the a53 work?

On 03/14/2014 07:07 AM, Ryan S. Arnold wrote:
> Hi Michael,
>
> please address this issue when you get a chance.
>
> On Fri, Mar 14, 2014 at 7:02 AM, Роман Донченко <email address hidden> wrote:
>> Public bug reported:
>>
>> There's a bug in GCC 4.8 related to vectorization of dot product-like
>> code: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60196.
>>
>> 4.8 is the only upstream branch that's affected, however, you seem to
>> have backported the revision introducing the bug (r185437) into 4.6 and
>> 4.7 as well, and those are now affected as well. Since the fix is
>> already available (r202663), please backport it to the affected
>> branches.
>>
>> ** Affects: gcc-linaro
>> Importance: Undecided
>> Status: New
>>
>> --
>> You received this bug notification because you are a member of Linaro
>> Toolchain Developers, which is subscribed to Linaro GCC.
>> https://bugs.launchpad.net/bugs/1292489
>>
>> Title:
>> Buggy vectorization of dot products
>>
>> Status in Linaro GCC:
>> New
>>
>> Bug description:
>> There's a bug in GCC 4.8 related to vectorization of dot product-like
>> code: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60196.
>>
>> 4.8 is the only upstream branch that's affected, however, you seem to
>> have backported the revision introducing the bug (r185437) into 4.6
>> and 4.7 as well, and those are now affected as well. Since the fix is
>> already available (r202663), please backport it to the affected
>> branches.
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/gcc-linaro/+bug/1292489/+subscriptions
>

--
Michael Collison
Linaro Toolchain Working Group
<email address hidden>