[llvm] [AMDGPU] Remove an unnecessary cast (NFC) (PR #148868)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

STI is already of const GCNSubtarget *.


---
Full diff: https://github.com/llvm/llvm-project/pull/148868.diff


1 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
index 67ad28661da43..75ce67c00228d 100644
--- a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
@@ -42,7 +42,7 @@ SIMachineFunctionInfo::SIMachineFunctionInfo(const Function &F,
       PrivateSegmentWaveByteOffset(false), WorkItemIDX(false),
       WorkItemIDY(false), WorkItemIDZ(false), ImplicitArgPtr(false),
       GITPtrHigh(0xffffffff), HighBitsOf32BitAddress(0) {
-  const GCNSubtarget &ST = *static_cast<const GCNSubtarget *>(STI);
+  const GCNSubtarget &ST = *STI;
   FlatWorkGroupSizes = ST.getFlatWorkGroupSizes(F);
   WavesPerEU = ST.getWavesPerEU(F);
   MaxNumWorkGroups = ST.getMaxNumWorkGroups(F);

``````````

</details>


https://github.com/llvm/llvm-project/pull/148868