r243851 - Fix invalid shufflevector operands

[Simon Pilgrim via cfe-commits]

On 06/08/2015 18:05, Hans Wennborg wrote:
> On Sun, Aug 2, 2015 at 8:28 AM, Simon Pilgrim <llvm-dev at redking.me.uk> wrote:
>> Author: rksimon
>> Date: Sun Aug  2 10:28:10 2015
>> New Revision: 243851
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=243851&view=rev
>> Log:
>> Fix invalid shufflevector operands
>>
>> This patch fixes bug 23800 ( https://llvm.org/bugs/show_bug.cgi?id=23800#c2 ). There existed a case where the index operand from extractelement was directly used to create a shufflevector mask. Since the index can be of any integral type but the mask must only contain 32 bit integers a 64 bit index operand led to an assertion error later on.
>>
>> Committed on behalf of mpflanzer (Moritz Pflanzer)
>>
>> Differential Revision: http://reviews.llvm.org/D10838
> Is this something we should merge to 3.7?
It is an edge case and not a regression - at best it would be a 'nice to 
have'. But it would be a very straightforward merge.