[llvm] [Hexagon] Remove an unnecessary cast (NFC) (PR #148870)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-hexagon

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

SB is already of MachineBasicBlock *SB.


---
Full diff: https://github.com/llvm/llvm-project/pull/148870.diff


1 Files Affected:

- (modified) llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp b/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp
index bb7814c5226fd..35da34ed0a899 100644
--- a/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp
@@ -1005,7 +1005,7 @@ bool MachineConstPropagator::rewrite(MachineFunction &MF) {
       SmallVector<MachineBasicBlock*,2> ToRemove;
       for (MachineBasicBlock *SB : B->successors()) {
         if (!Targets.count(SB))
-          ToRemove.push_back(const_cast<MachineBasicBlock*>(SB));
+          ToRemove.push_back(SB);
         Targets.remove(SB);
       }
       for (MachineBasicBlock *MBB : ToRemove)

``````````

</details>


https://github.com/llvm/llvm-project/pull/148870