[llvm] [LICM] Support integer mul/add in hoistFPAssociation. (PR #67736)

[Nico Weber via llvm-commits]

nico wrote:

Looks Like this might cause crashes on Mac: http://45.33.8.238/macm1/78525/step_11.txt

Please take a look and revert for now if it takes a while to fix.

https://github.com/llvm/llvm-project/pull/67736