[AMDGPU] Make isScalarLoadLegal a member of AMDGPURegisterBankInfo. NFC.

Author: jayfoad

llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp

@@ -441,7 +441,7 @@ AMDGPURegisterBankInfo::getInstrAlternativeMappingsIntrinsicWSideEffects(
 
 // FIXME: Returns uniform if there's no source value information. This is
 // probably wrong.
-static bool isScalarLoadLegal(const MachineInstr &MI) {
+bool AMDGPURegisterBankInfo::isScalarLoadLegal(const MachineInstr &MI) const {
   if (!MI.hasOneMemOperand())
     return false;
 

llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.h

@@ -176,6 +176,8 @@ class AMDGPURegisterBankInfo final : public AMDGPUGenRegisterBankInfo {
   const RegisterBank &getRegBankFromRegClass(const TargetRegisterClass &RC,
                                              LLT) const override;
 
+  bool isScalarLoadLegal(const MachineInstr &MI) const;
+
   InstructionMappings
   getInstrAlternativeMappings(const MachineInstr &MI) const override;