[llvm] [AArch64] Fix Windows prologue handling to pair more registers. (PR #170214)

[Benjamin Maxwell via llvm-commits]

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@@ -179,11 +179,23 @@ AArch64PrologueEpilogueCommon::convertCalleeSaveRestoreToSPPrePostIncDec(
   (void)Success;
   assert(Success && "unknown load/store opcode");
 
+  const auto *TRI = Subtarget.getRegisterInfo();
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MacDue wrote:

`RegInfo` is already a class member.
```suggestion
```

https://github.com/llvm/llvm-project/pull/170214