================
@@ -5548,13 +5493,76 @@ static bool isAtLeastAsSpecializedAs(Sema &S,
FunctionTemplateDecl *Sema::getMoreSpecializedTemplate(
FunctionTemplateDecl *FT1, FunctionTemplateDecl *FT2, SourceLocation Loc,
TemplatePartialOrderingContext TPOC, unsigned NumCallArguments1,
- unsigned NumCallArguments2, bool Reversed) {
+ QualType RawObj1Ty, QualType RawObj2Ty, bool Reversed) {
+ SmallVector<QualType> Args1;
+ SmallVector<QualType> Args2;
+ const FunctionDecl *FD1 = FT1->getTemplatedDecl();
+ const FunctionDecl *FD2 = FT2->getTemplatedDecl();
+ bool shouldConvert1 = false;
+ bool shouldConvert2 = false;
+ QualType Obj1Ty;
+ QualType Obj2Ty;
+ if (TPOC == TPOC_Call) {
+ const FunctionProtoType *Proto1 =
+ FD1->getType()->getAs<FunctionProtoType>();
+ const FunctionProtoType *Proto2 =
+ FD2->getType()->getAs<FunctionProtoType>();
- bool Better1 = isAtLeastAsSpecializedAs(*this, Loc, FT1, FT2, TPOC,
- NumCallArguments1, Reversed);
- bool Better2 = isAtLeastAsSpecializedAs(*this, Loc, FT2, FT1, TPOC,
- NumCallArguments2, Reversed);
+ // - In the context of a function call, the function parameter types are
+ // used.
+ const CXXMethodDecl *Method1 = dyn_cast<CXXMethodDecl>(FD1);
+ const CXXMethodDecl *Method2 = dyn_cast<CXXMethodDecl>(FD2);
+ // C++20 [temp.func.order]p3
+ // [...] Each function template M that is a member function is
+ // considered to have a new first parameter of type
+ // X(M), described below, inserted in its function parameter list.
+ //
+ // Note that we interpret "that is a member function" as
+ // "that is a member function with no expicit object argument".
+ // Otherwise the ordering rules for methods with expicit objet arguments
+ // against anything else make no sense.
+ shouldConvert1 = Method1 && !Method1->isExplicitObjectMemberFunction();
+ shouldConvert2 = Method2 && !Method2->isExplicitObjectMemberFunction();
----------------
whisperity wrote:
```suggestion
ShouldConvert1 = Method1 && !Method1->isExplicitObjectMemberFunction();
ShouldConvert2 = Method2 && !Method2->isExplicitObjectMemberFunction();
```
Style nit formatting, if we're changing the code even though it might largely
be a move/refactor, you can fix the formatting now!
https://github.com/llvm/llvm-project/pull/83279
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