[llvm] [InstCombine] Canonicalize the fcmp range check idiom into `fabs + fcmp` (PR #76367)

[Thorsten Schütt via llvm-commits]

tschuett wrote:

May I assume that you do the same combine for integer range checks, i.e. and of icmps? Could you point me please to the combine? 

https://github.com/llvm/llvm-project/pull/76367