https://github.com/Adam-Warlock09 created https://github.com/llvm/llvm-project/pull/235483
This adds the missing regression test for GH138098. As noted by @shafik, the crash described in this issue was inadvertently fixed by #143423 (which removed delayed typo expressions), but the codebase lacked a specific regression test to ensure this ICE (Internal Compiler Error) does not return in the future. This test verifies that Clang correctly emits diagnostics for invalid dependent names instead of crashing. (I verified on Compiler Explorer that this test successfully crashes on older versions of Clang like 17.0.1 up until 20.1.x, and passes on the current `main` branch [From 21.1x onward]). Fixes #138098 >From 4999d50d063ca595a114af4e2cd3a0864bb23b1b Mon Sep 17 00:00:00 2001 From: Rishika11052 <[email protected]> Date: Sun, 25 Oct 2026 16:32:13 +0000 Subject: [PATCH] [Clang][Sema] Add regression test for GH138098 --- clang/test/SemaCXX/gh138098.cpp | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 clang/test/SemaCXX/gh138098.cpp diff --git a/clang/test/SemaCXX/gh138098.cpp b/clang/test/SemaCXX/gh138098.cpp new file mode 100644 index 00000000000000..e06ecc1817a837 --- /dev/null +++ b/clang/test/SemaCXX/gh138098.cpp @@ -0,0 +1,20 @@ +// RUN: %clang_cc1 -std=c++20 -fsyntax-only -verify %s + +template<typename T> struct Derived { + void f(int index) { + // expected-error@+3 {{explicit qualification required to use member 'type_c' from dependent base class}} + // expected-error@+2 {{comparison between pointer and integer ('int' and 'auto &(*)()')}} + // expected-note@8 {{in instantiation of member function 'Derived<int>::type_c' requested here}} + if (index != type_c<T>) {} + } + // expected-error@+2 {{cannot deduce return type 'auto &' for function with no return statements}} + // expected-note@12 {{member is declared here}} + static auto& type_c() { } +}; + +int main() { + Derived<int> d; + // expected-note@19 {{in instantiation of member function 'Derived<int>::f' requested here}} + // expected-note@19 {{in instantiation of member function 'Derived<int>::f' requested here}} + d.f(0); +} _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
