[llvm] [AMDGPU] Remove unused functions for checking 16-bit inline literals (PR #81282)

[Joe Nash via llvm-commits]

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@@ -353,7 +353,6 @@ class AMDGPUInstructionSelector final : public InstructionSelector {
   void renderFPPow2ToExponent(MachineInstrBuilder &MIB, const MachineInstr &MI,
                               int OpIdx) const;
 
-  bool isInlineImmediate16(int64_t Imm) const;
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Sisyph wrote:

I see this function as well as isInlineImmediate32 and isInlineImmediate64 are called in
AMDGPUGenGlobalISel.inc AMDGPUInstructionSelector::testImmPredicate_I64, but I'm not sure if that function is used. 

Perhaps you can remove all 3 functions?

https://github.com/llvm/llvm-project/pull/81282