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

kazutakahirata · web-flow · commit c1bc55ee060e · 2025-08-23T22:20:07.000-07:00
getOpcode() already returns Instruction::CastOps.
diff --git 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;
   }

Original file line number	Diff line number	Diff line change
`@@ -2833,8 +2833,7 @@ static Value generateNewInstTree(ArrayRef<InstLane> Item, FixedVectorType Ty,`
`2833`	`2833`	`return Value;`
`2834`	`2834`	`}`
`2835`	`2835`	`if (auto *CI = dyn_cast<CastInst>(I)) {`
`2836`		`- auto *Value = Builder.CreateCast((Instruction::CastOps)CI->getOpcode(),`
`2837`		`- Ops[0], DstTy);`
	`2836`	`+ auto *Value = Builder.CreateCast(CI->getOpcode(), Ops[0], DstTy);`
`2838`	`2837`	`propagateIRFlags(Value, ValueList);`
`2839`	`2838`	`return Value;`
`2840`	`2839`	`}`