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

[Bill Wendling via llvm-commits]

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@@ -468,13 +468,11 @@ class SITargetLowering final : public AMDGPUTargetLowering {
   getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI,
                                StringRef Constraint, MVT VT) const override;
   ConstraintType getConstraintType(StringRef Constraint) const override;
-  void LowerAsmOperandForConstraint(SDValue Op,
-                                    std::string &Constraint,
+  void LowerAsmOperandForConstraint(SDValue Op, const StringRef Constraint,
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bwendling wrote:

Is the `const` required here?

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