[clang] [Clang][Sema] Fix err_constexpr_virtual_base diagnostic so that it only diagnoses on constructors and destructors (PR #163690)
Shafik Yaghmour via cfe-commits
cfe-commits at lists.llvm.org
Thu Oct 16 10:02:39 PDT 2025
================
@@ -1918,23 +1918,22 @@ static bool CheckConstexprMissingReturn(Sema &SemaRef, const FunctionDecl *Dcl);
bool Sema::CheckConstexprFunctionDefinition(const FunctionDecl *NewFD,
CheckConstexprKind Kind) {
- const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(NewFD);
- if (MD && MD->isInstance()) {
+ if ((!getLangOpts().CPlusPlus26 && isa<CXXConstructorDecl>(NewFD)) ||
+ ((getLangOpts().CPlusPlus20 && !getLangOpts().CPlusPlus26) &&
+ isa<CXXDestructorDecl>(NewFD))) {
+ const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(NewFD);
----------------
shafik wrote:
That is not really my intent but leaving it enabled for C++26 is also not correct. I can leave it enabled for C++26 but it is such a trivial addition it seems silly not to. If the objections are strong I can take out the C++26 check.
https://github.com/llvm/llvm-project/pull/163690
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