[PATCH] D56214: AggressiveInstCombine: Fold full mul i64 x i64 -> i128

Wed Nov 2 01:40:55 PDT 2022

chfast added a comment.

In D56214#3885105 <https://reviews.llvm.org/D56214#3885105>, @RKSimon wrote:

> @chfast What do you want to do with this patch now that D136015 <https://reviews.llvm.org/D136015> landed?

I don't really need it any more (I was overoptimistic this is a portable way to get access to 64x64→128 `mul` instruction). But if you think the change is good and has now flaws I can finish it in some free time. Should it be moved to InstCombine then?

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56214/new/

https://reviews.llvm.org/D56214