[llvm] Use `std::move` to avoid redundant copy (PR #113054)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-tablegen

Author: None (abhishek-kaushik22)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/113054.diff


1 Files Affected:

- (modified) llvm/utils/TableGen/DecoderEmitter.cpp (+1-1) 


``````````diff
diff --git a/llvm/utils/TableGen/DecoderEmitter.cpp b/llvm/utils/TableGen/DecoderEmitter.cpp
index 4d2320b31ea94a..55af5fdc3d6a37 100644
--- a/llvm/utils/TableGen/DecoderEmitter.cpp
+++ b/llvm/utils/TableGen/DecoderEmitter.cpp
@@ -2059,7 +2059,7 @@ populateInstruction(const CodeGenTarget &Target, const Record &EncodingDef,
           MyName = Op.Name;
 
         TiedNames[MyName] = TiedName;
-        TiedNames[TiedName] = MyName;
+        TiedNames[TiedName] = std::move(MyName);
       }
     }
   }

``````````

</details>


https://github.com/llvm/llvm-project/pull/113054