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Commit ca8316b7 authored by Amara Emerson's avatar Amara Emerson
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[GlobalISel] Extend CombinerHelper::matchConstantOp() to match constant splat vectors. 

This allows the "x op 0 -> x" fold to optimize vector constant RHSs.

Differential Revision: https://reviews.llvm.org/D110802
parent fdcbb540
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