[clang] [clang][Sema] Add noinline check for __builtin_frame_address and __builtin_return_address (PR #82966)

[Aaron Ballman via cfe-commits]

================
@@ -28,4 +36,28 @@ void *foo()
 {
  return RA<2>(); // expected-note{{in instantiation of function template specialization 'RA<2>' requested here}}
 }
-#endif
+
+void* f() {
+  return ([&] () {
+    return __builtin_frame_address(0); // expected-warning{{calling '__builtin_frame_address' in function not marked __attribute__((noinline)) may return a caller's frame address}}
+  })();
+}
+
+void* g() {
+  return ([&] () __attribute__((noinline)) {
+    return __builtin_frame_address(0);
+  })();
+}
+
+void* h() {
+  return ([&] () {
+    return __builtin_return_address(0); // expected-warning{{calling '__builtin_return_address' in function not marked __attribute__((noinline)) may return a caller's return address}}
+  })();
+}
+
+void* i() {
+  return ([&] () __attribute__((noinline)) {
+    return __builtin_return_address(0);
+  })();
+}
+#endif
----------------
AaronBallman wrote:

Please add the newline back to the end of the file.

https://github.com/llvm/llvm-project/pull/82966