[PATCH] D141778: [DAGCombiner][X86] `mergeConsecutiveStores()`: support merging splat-stores of the same value

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

In D141778#4054600 <https://reviews.llvm.org/D141778#4054600>, @lebedev.ri wrote:

> Add subvector test coverage. 
> @spatel should we not split such stores just like we do with stores of CONCAT_VECTOR?

Ah, so we already do that in `collectConcatOps()`. Okay, then these must be improvements.


Repository:
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https://reviews.llvm.org/D141778