Merging r259911:

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r259911 | Matthew.Arsenault | 2016-02-05 11:47:23 -0800 (Fri, 05 Feb 2016) | 5 lines

AMDGPU: Preserve alignments on new created globals

Also switch to internal linkage, and include the name of the function in
the name.

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llvm-svn: 271639