[PATCH] D147678: [DAGCombiner][AArch64] Use scalar_to_vector to eliminate bitcast

[Allen zhong via Phabricator via llvm-commits]

Allen added a comment.

Thanks for your advise, I'll try that.
In current case, I also check **N->getValueType(0).getScalarType() == N00.getNode()->getValueType(0)**, 
so we only address the case A --> VecB --> VecA, as the scalar type of VecA is same to A, so we can ignore the difference between VecB and VecA on the laid out ?


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https://reviews.llvm.org/D147678