[llvm] [AArch64] Remove an unnecessary cast (NFC) (PR #148532)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-aarch64

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

getRegisterInfo() already returns const AArch64RegisterInfo *.


---
Full diff: https://github.com/llvm/llvm-project/pull/148532.diff


1 Files Affected:

- (modified) llvm/lib/Target/AArch64/AArch64FrameLowering.cpp (+1-2) 


``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
index 00fbeef9d35df..0179be4894c92 100644
--- a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
@@ -731,8 +731,7 @@ void AArch64FrameLowering::resetCFIToInitialState(
 
   MachineFunction &MF = *MBB.getParent();
   const auto &Subtarget = MF.getSubtarget<AArch64Subtarget>();
-  const auto &TRI =
-      static_cast<const AArch64RegisterInfo &>(*Subtarget.getRegisterInfo());
+  const auto &TRI = *Subtarget.getRegisterInfo();
   const auto &MFI = *MF.getInfo<AArch64FunctionInfo>();
 
   CFIInstBuilder CFIBuilder(MBB, MBB.begin(), MachineInstr::NoFlags);

``````````

</details>


https://github.com/llvm/llvm-project/pull/148532