regression from commit r206045

[NAKAMURA Takumi]

Reverted in r206153. It also broke i686.
http://bb.pgr.jp/builders/clang-3stage-i686-linux/builds/230

Matt, I'll send a big testcase to you later to reproduce.

2014-04-14 15:09 GMT+09:00 Reed Kotler <Reed.Kotler at imgtec.com>:
> These are failures for Mips.
>
> ________________________________
> From: Reed Kotler
> Sent: Sunday, April 13, 2014 11:06 PM
> To: llvm-commits at cs.uiuc.edu
> Cc: Matthew.Arsenault at amd.com
> Subject: regression from commit r206045
>
> We have several test-suite failures after this commit.
>
>
>
> bisected to:
>
> commit fb33ce9956e10d74031b54fdaf4e341c64ca6de1
> Author: Matt Arsenault <Matthew.Arsenault at amd.com>
> Date:   Fri Apr 11 17:57:53 2014 +0000
>
>     Fix shift by constants for vector.
>
>     ashr <N x iM>, <N x iM> M -> undef
>
>     git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206045
> 91177308-0d\
> 34-0410-b5e6-96231b3b80d8
>
> Failures are:
>
> SingleSource/Benchmarks/CoyoteBench/fftbench
> SingleSource/Benchmarks/Misc-C++/oopack_v1p8
> SingleSource/Benchmarks/Misc/mandel-2
>
>
>
>
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