Merging r243462:

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r243462 | Matthew.Arsenault | 2015-07-28 14:47:00 -0400 (Tue, 28 Jul 2015) | 5 lines

AMDGPU: Don't try to use LDS/vector for private if pointer value stored

If the pointer is the store's value operand, this would produce
a broken module. Make sure the use is actually for the pointer operand.

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llvm-svn: 253228