[llvm] [InstCombine] Optimize unneeded float to int cast when icmp (PR #155501)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

We may need a one-use check on the fptosi cast. This is a bit different from our general policy, as the fp constant materialization is not as cheap as integers.


https://github.com/llvm/llvm-project/pull/155501