1 files changed, 47 insertions, 4 deletions
diff --git a/clang/test/CXX/drs/dr24xx.cpp b/clang/test/CXX/drs/dr24xx.cpp
index 3fd8539..b34ceb4 100644
--- a/clang/test/CXX/drs/dr24xx.cpp
+++ b/clang/test/CXX/drs/dr24xx.cpp
@@ -1,9 +1,52 @@
-// RUN: %clang_cc1 -std=c++20 %s -verify
-// RUN: %clang_cc1 -std=c++23 %s -verify
+// RUN: %clang_cc1 -std=c++98 %s -verify=expected
+// RUN: %clang_cc1 -std=c++11 %s -verify=expected
+// RUN: %clang_cc1 -std=c++14 %s -verify=expected
+// RUN: %clang_cc1 -std=c++17 %s -verify=expected,since-cxx17
+// RUN: %clang_cc1 -std=c++20 %s -verify=expected,since-cxx17
+// RUN: %clang_cc1 -std=c++23 %s -verify=expected,since-cxx17
+// RUN: %clang_cc1 -std=c++2c %s -verify=expected,since-cxx17
+
+#if __cplusplus <= 201402L
 // expected-no-diagnostics
+#endif
+
+namespace dr2406 { // dr2406: 5
+#if __cplusplus >= 201703L
+void fallthrough(int n) {
+  void g(), h(), i();
+  switch (n) {
+  case 1:
+  case 2:
+    g();
+    [[fallthrough]];
+  case 3: // warning on fallthrough discouraged
+    do {
+      [[fallthrough]];
+      // since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
+    } while (false);
+  case 6:
+    do {
+      [[fallthrough]];
+      // since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
+    } while (n);
+  case 7:
+    while (false) {
+      [[fallthrough]];
+      // since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
+    }
+  case 5:
+    h();
+  case 4: // implementation may warn on fallthrough
+    i();
+    [[fallthrough]];
+    // since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
+  }
+}
+#endif
+}
 
 namespace dr2450 { // dr2450: 18 drafting
-#if __cplusplus > 202002L
+#if __cplusplus >= 202302L
 struct S {int a;};
 template <S s>
 void f(){}
@@ -17,7 +60,7 @@ f<{.a= 0}>();
 }
 
 namespace dr2459 { // dr2459: 18 drafting
-#if __cplusplus > 202002L
+#if __cplusplus >= 202302L
 struct A {
   constexpr A(float) {}
 };