[llvm] r222748 - [InstCombine] Change LLVM To canonicalize toward the value type being

[Chandler Carruth]

After quite a bit of work for me to understand everything and craft more
reduced test cases, fixed in r228899. Will get it integrated into 3.6 etc.

On Wed, Feb 11, 2015 at 1:51 PM, Chandler Carruth <chandlerc at gmail.com>
wrote:

>
> On Wed, Feb 11, 2015 at 8:17 AM, Joerg Sonnenberger <
> joerg at britannica.bec.de> wrote:
>
>> On Tue, Nov 25, 2014 at 10:09:51AM -0000, Chandler Carruth wrote:
>> > Author: chandlerc
>> > Date: Tue Nov 25 04:09:51 2014
>> > New Revision: 222748
>> >
>> > URL: http://llvm.org/viewvc/llvm-project?rev=222748&view=rev
>> > Log:
>> > [InstCombine] Change LLVM To canonicalize toward the value type being
>> > stored rather than the pointer type.
>>
>> Hi Chandler,
>> this introduced a regression from 3.5 I just now got in pkgsrc. Try to
>> build the attached sources with -O2.
>
>
> Reproduces on ToT, looks like a bug in the SLP vectorizer.
>
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