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// expected-no-diagnostics 9 10// This tests that diagnostic mappings from PCH are propagated for #pragma 11// diagnostics but not for command-line flags. 12 13#ifndef HEADER 14#define HEADER 15 16#pragma clang diagnostic ignored "-Wtautological-compare" 17 18#else 19 20int f() { 21 int a; 22 int b = a==a; 23 unsigned x; 24 signed y; 25 return x == y; 26} 27 28#endif 29