[PATCH] D65689: [X86] WIP Match the IR pattern form movmsk on SSE1 only targets where v4i32 isn't legal

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

The direction seems fine to me. We have similar existing code to avoid problems for an SSE1-only target. There's a question about why someone would target SSE1-only for perf-critical code at this point, but I assume there's some legacy constraint preventing doing better.


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https://reviews.llvm.org/D65689