[llvm] [Vectorize] Remove an unnecessary cast (NFC) (PR #155135)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

getOpcode() already returns Instruction::CastOps.


---
Full diff: https://github.com/llvm/llvm-project/pull/155135.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Vectorize/VectorCombine.cpp (+1-2) 


``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
index 1275d53a075b5..613dec121e016 100644
--- a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
+++ b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
@@ -2833,8 +2833,7 @@ static Value *generateNewInstTree(ArrayRef<InstLane> Item, FixedVectorType *Ty,
     return Value;
   }
   if (auto *CI = dyn_cast<CastInst>(I)) {
-    auto *Value = Builder.CreateCast((Instruction::CastOps)CI->getOpcode(),
-                                     Ops[0], DstTy);
+    auto *Value = Builder.CreateCast(CI->getOpcode(), Ops[0], DstTy);
     propagateIRFlags(Value, ValueList);
     return Value;
   }

``````````

</details>


https://github.com/llvm/llvm-project/pull/155135