[PATCH] [X86] canonicalize a v2f64 blendi of 2 registers

[Chandler Carruth]

Yea, there is a better way to do this: Add a target-specific combine (or even post-legalize transform in X86ISelDAGToDAG which does this canonicalization. That will run right before pattern matching through the tables, and we won't need to think about it in any other place we might form BLENDI.


http://reviews.llvm.org/D7777

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