[PATCH] merge consecutive stores of extracted vector elements (PR21711)

[Sanjay Patel]

In http://reviews.llvm.org/D6850#111943, @qcolombet wrote:

> LGTM with some nitpicks.


Thanks, Quentin! I implemented your 2nd refactoring suggestion; I think that makes it easier to understand.


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http://reviews.llvm.org/D6850

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