[llvm] [RISCV][GISel] Add support for G_FCMP with F and D extensions. (PR #70624)

[Michael Maitland via llvm-commits]

================
@@ -67,6 +67,9 @@ class RISCVInstructionSelector : public InstructionSelector {
   bool selectSelect(MachineInstr &MI, MachineIRBuilder &MIB,
                     MachineRegisterInfo &MRI) const;
 
+  bool emitFPCompare(CmpInst::Predicate Pred, Register DstReg, Register LHS,
----------------
michaelmaitland wrote:

Should this function be renamed to `selectFPCompare`? It looks like we are using it to select a G_FCMP.

https://github.com/llvm/llvm-project/pull/70624