1 // Test this without pch.
2 // RUN: %clang_cc1 %s -include %s -verify -fsyntax-only -Wno-sign-compare -Wtautological-compare
3
4 // Test with pch.
5 // RUN: %clang_cc1 %s -emit-pch -o %t -Wsign-compare -Wtautological-compare
6 // RUN: %clang_cc1 %s -include-pch %t -verify -fsyntax-only -Wno-sign-compare -Wtautological-compare
7
8 // This tests that diagnostic mappings from PCH are propagated for #pragma
9 // diagnostics but not for command-line flags.
10
11 #ifndef HEADER
12 #define HEADER
13
14 #pragma clang diagnostic ignored "-Wtautological-compare"
15
16 #else
17
f()18 int f() {
19 int a;
20 int b = a==a;
21 unsigned x;
22 signed y;
23 return x == y;
24 }
25
26 #endif
27