[llvm] [RISCV][GISel] Add ZFA FP legalization and full tests for 9 insn (PR #118723)

[Craig Topper via llvm-commits]

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topperc wrote:

We don't need to solve the min/max libcall in this patch. We can just enabled min/max with Zfa and leave the non-Zfa case for later.

https://github.com/llvm/llvm-project/pull/118723