[PATCH] [X86] replace vinsertf128 intrinsics with generic shuffles

[Sanjay Patel]

In http://reviews.llvm.org/D8088#135520, @andreadb wrote:

> The double-leading-underscores are not used to avoid the warnings. If you remove the extra underscores, you would still get the [-Wshadow] warnings.


I may be misunderstanding, but I thought the double-leading-underscores were used to avoid interacting with the user's namespace. Double-leading-underscore is reserved for the compiler only?


http://reviews.llvm.org/D8088

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