Aaron Watry c1fcf01d7f R600/SI: Expand ashr of v2i32/v4i32 for SI
Also add lit test for both cases on SI, and v2i32 for evergreen.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184842 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-25 13:55:40 +00:00
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