1 // Test this without pch.
2 // RUN: %clang_cc1 %s -include %s -verify -fsyntax-only -Wuninitialized
3 
4 // Test with pch.
5 // RUN: %clang_cc1 %s -emit-pch -o %t
6 // RUN: %clang_cc1 %s -include-pch %t -verify -fsyntax-only -Wuninitialized
7 
8 #ifndef HEADER
9 #define HEADER
10 
11 #pragma clang diagnostic push
12 #pragma clang diagnostic ignored "-Wuninitialized"
13 template <typename T>
14 struct TS1 {
mTS115     void m() {
16       T a;
17       T b = a;
18     }
19 };
20 #pragma clang diagnostic pop
21 
22 #else
23 
24 
25 template <typename T>
26 struct TS2 {
mTS227     void m() {
28       T a;
29       T b = a; // expected-warning {{variable 'a' is uninitialized}} \
30                   expected-note@41 {{in instantiation of member function}} \
31                   expected-note@28 {{initialize the variable 'a' to silence}}
32     }
33 };
34 
f()35 void f() {
36     TS1<int> ts1;
37     ts1.m();
38 
39 
40     TS2<int> ts2;
41     ts2.m();
42 }
43 
44 #endif
45