[PATCH] D153620: [X86] Combine MUL+SRL+TRUNC to MULX for i32 on 64-bit

[Phoebe Wang via Phabricator via llvm-commits]

pengfei added a comment.

In D153620#4443954 <https://reviews.llvm.org/D153620#4443954>, @RKSimon wrote:

> On https://github.com/llvm/llvm-project/issues/33580 there was concern whether MULX32 on 64-bit targets is slower than the alternatives?

>From the current code base, I think we slightly prefer D80498 <https://reviews.llvm.org/D80498> to D55565 <https://reviews.llvm.org/D55565>?


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https://reviews.llvm.org/D153620