================
@@ -5824,12 +5824,23 @@ FunctionDecl
*Sema::getMoreConstrainedFunction(FunctionDecl *FD1,
FunctionDecl *FD2) {
assert(!FD1->getDescribedTemplate() && !FD2->getDescribedTemplate() &&
"not for function templates");
- FunctionDecl *F1 = FD1;
- if (FunctionDecl *MF = FD1->getInstantiatedFromMemberFunction())
- F1 = MF;
- FunctionDecl *F2 = FD2;
- if (FunctionDecl *MF = FD2->getInstantiatedFromMemberFunction())
- F2 = MF;
+
+ auto getTemplatePattern = [](FunctionDecl *FD) {
+ // Specializations of conversion function templates are believed to be the
+ // only case where a function template specialization reaches here.
+ assert(!FD->isFunctionTemplateSpecialization() ||
+ isa<CXXConversionDecl>(FD));
+
+ if (FunctionDecl *MF = FD->getInstantiatedFromMemberFunction())
+ return MF;
+ else if (FunctionTemplateDecl *FTD = FD->getPrimaryTemplate())
+ return FTD->getTemplatedDecl();
+
+ return FD;
+ };
+ FunctionDecl *F1 = getTemplatePattern(FD1);
+ FunctionDecl *F2 = getTemplatePattern(FD2);
----------------
katzdm wrote:
Done.
https://github.com/llvm/llvm-project/pull/98671
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