1 // Test this without pch. 2 // RUN: %clang_cc1 %s -include %s -verify -fsyntax-only 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 7 8 #ifndef HEADER 9 #define HEADER 10 11 #pragma clang diagnostic push 12 #pragma clang diagnostic ignored "-Wtautological-compare" 13 template <typename T> 14 struct TS1 { 15 void m() { 16 T a = 0; 17 T b = a==a; 18 } 19 }; 20 #pragma clang diagnostic pop 21 22 #else 23 24 25 template <typename T> 26 struct TS2 { 27 void m() { 28 T a = 0; 29 T b = a==a; // expected-warning {{self-comparison always evaluates to true}} expected-note@39 {{in instantiation of member function}} 30 } 31 }; 32 33 void f() { 34 TS1<int> ts1; 35 ts1.m(); 36 37 38 TS2<int> ts2; 39 ts2.m(); 40 } 41 42 #endif 43
