[llvm] [DAGCombiner][X86][WIP] Combine (build_vector (load X))->(vecty (load X)) (PR #88753)

[Craig Topper via llvm-commits]

topperc wrote:

> Just to clear - #88261 is not about improving MMX codegen (it was just a weird WTF moment). I'm happy to continue work on the riscv changes\regressions.

Is it part of a larger series or should I look closer at the other changes in 88261?

It just seemed like build_pair should be removed by type legalization and the opportunities should be visible post type legalization without the build_pair.

https://github.com/llvm/llvm-project/pull/88753