================
@@ -306,6 +306,19 @@ equalAttrArgs(T A1, T A2, StructuralEquivalenceContext
&Context) {
return A1 == A2;
}
+// ParamIdx has an explicit specialization because it can be invalid (when
+// representing an optional parameter that was not specified). Two invalid
+// ParamIdx values compare equal; an invalid value is not equal to any valid
+// one. ParamIdx::operator== asserts both sides are valid, so we must guard
----------------
melver wrote:
function-level comments should explain what the function does. This is
explaining the implementation of the function. This is fine, but should be
moved inside to document the implementation.
https://github.com/llvm/llvm-project/pull/199980
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