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// Test this without pch.
// RUN: %clang_cc1 %s -include %s -verify -fsyntax-only -Wno-sign-compare -Wtautological-compare
// Test with pch.
// RUN: %clang_cc1 %s -emit-pch -o %t -Wsign-compare -Wtautological-compare
// RUN: %clang_cc1 %s -include-pch %t -verify -fsyntax-only -Wno-sign-compare -Wtautological-compare
// expected-no-diagnostics
// This tests that diagnostic mappings from PCH are propagated for #pragma
// diagnostics but not for command-line flags.
#ifndef HEADER
#define HEADER
#pragma clang diagnostic ignored "-Wtautological-compare"
#else
int f() {
int a;
int b = a==a;
unsigned x;
signed y;
return x == y;
}
#endif
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