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

[via llvm-commits]

dyung 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.

I also saw the same crashes on 2 mac bots:
https://lab.llvm.org/staging/#/builders/188/builds/50
https://lab.llvm.org/staging/#/builders/189/builds/378

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