[llvm] r244448 - Prevent the scalarizer from caching incorrect entries

[Hans Wennborg via llvm-commits]

On Fri, Aug 14, 2015 at 11:28 AM, Hans Wennborg <hans at chromium.org> wrote:
> On Tue, Aug 11, 2015 at 9:42 AM, Hans Wennborg <hans at chromium.org> wrote:
>> On Mon, Aug 10, 2015 at 7:48 AM, Fraser Cormack via llvm-commits
>> <llvm-commits at lists.llvm.org> wrote:
>>> Author: fcormack
>>> Date: Mon Aug 10 09:48:47 2015
>>> New Revision: 244448
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=244448&view=rev
>>> Log:
>>> Prevent the scalarizer from caching incorrect entries
>>>
>>> The scalarizer can cache incorrect entries when walking up a chain of
>>> insertelement instructions. This occurs when it encounters more than one
>>> instruction that it is not actively searching for, as it unconditionally caches
>>> every element it finds. The fix is to only cache the first element that it
>>> isn't searching for so we don't overwrite correct entries.
>>>
>>> Reviewers: hfinkel
>>>
>>> Differential Revision: http://reviews.llvm.org/D11559
>>
>> Should this be merged to 3.7?
>
> Ping?

Ping?