[llvm] [DAG] Fold fdiv X, c2 -> fmul X, 1/c2 without AllowReciprocal if exact (PR #93882)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm approved this pull request.

Letting the denormal through is probably fine 

https://github.com/llvm/llvm-project/pull/93882