[llvm] [TargetLowering] Deduplicate choosing InlineAsm constraint between ISels (PR #67057)

[Bill Wendling via llvm-commits]

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@@ -4853,7 +4862,8 @@ class TargetLowering : public TargetLoweringBase {
 
   /// Lower the specified operand into the Ops vector.  If it is invalid, don't
   /// add anything to Ops.
-  virtual void LowerAsmOperandForConstraint(SDValue Op, std::string &Constraint,
+  virtual void LowerAsmOperandForConstraint(SDValue Op,
+                                            const StringRef Constraint,
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bwendling wrote:

Is the `const` necessary here?

https://github.com/llvm/llvm-project/pull/67057