[llvm] AArch64: Use LibcallLoweringInfo in MachineSMEABI pass (PR #176777)

[Matt Arsenault via llvm-commits]

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@@ -413,14 +414,25 @@ struct MachineSMEABI : public MachineFunctionPass {
   void restorePhyRegSave(const PhysRegSave &RegSave, MachineBasicBlock &MBB,
                          MachineBasicBlock::iterator MBBI, DebugLoc DL);
 
+  RTLIB::LibcallImpl getLibcallImpl(RTLIB::Libcall LC) const {
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arsenm wrote:

> Okay, call it getSymbolName then. I don't really see the point of making each callsite more verbose when all they want is the symbol/libcall name.

Because libcalls do not have names, LibcallImpls do. Everything should use getLibcallImplName, which returns StringRef 



https://github.com/llvm/llvm-project/pull/176777