================
@@ -6116,6 +6116,17 @@ static bool EvaluateBinaryTypeTrait(Sema &Self,
TypeTrait BTT, const TypeSourceI
tok::kw___is_pointer_interconvertible_base_of);
return Self.IsPointerInterconvertibleBaseOf(Lhs, Rhs);
+ }
+ case BTT_IsDeducible: {
+ if (const auto *TSTToBeDeduced =
+ LhsT->getAs<DeducedTemplateSpecializationType>()) {
+ sema::TemplateDeductionInfo Info(KeyLoc);
+ return Self.DeduceTemplateArgumentsFromType(
+ TSTToBeDeduced->getTemplateName().getAsTemplateDecl(), RhsT,
+ Info) == TemplateDeductionResult::Success;
+ }
+ assert("Expect to see DeducedTemplateSpecializationType!");
----------------
cor3ntin wrote:
that is always true (you probably mean `false && ""`).
But I would remove the `if`, use
`cast<DeducedTemplateSpecializationType>(LhsT)` that will assert for you)
https://github.com/llvm/llvm-project/pull/89358
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