[PATCH] D47215: DAG: Fix extract_subvector combine for a single element

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In https://reviews.llvm.org/D47215#1123993, @craig.topper wrote:

> Is v1X a legal type, but not a legal build_vector? i.e. how do you pass the isTypeLegal check?


No, v1 is illegal (as it should be on every target, although I know ARM at least has some legal v1 types as a hack). That was also failing, but now it's checking the legality of the scalar type


https://reviews.llvm.org/D47215