[PATCH] D154078: [X86] Don't elide argument copies for scalarized vectors (PR63475)

[Phoebe Wang via Phabricator via llvm-commits]

pengfei added a comment.

Why do we change the distance from 4 to 8 in callee rather than change 8 to 4 for caller?
Although we don't have a standard calling converion for illegal types in IR, and what makes it more corner is its power-of-2 vector <8 x i32> is illegal too (https://godbolt.org/z/ds9WGPTeP), I think we still should make it close to practical converion, i.e., https://godbolt.org/z/YoMbzxzr8


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https://reviews.llvm.org/D154078