[PATCH] [X86][SSE] Keep 4i32 vector insertions in integer domain on pre-SSE4.1 targets

[Chandler Carruth]

Stale review, feel free to close if its obsolete.

That said, feel free to submit the missing tests separately.

I'm happy to take a look if you get the patch into a good place. I don't know enough about the pattern stuff to be a lot of help I'm afraid.


http://reviews.llvm.org/D6526

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