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// Test this without pch.
// RUN: %clang_cc1 %s -include %s -verify -fsyntax-only
// Test with pch.
// RUN: %clang_cc1 %s -emit-pch -o %t
// RUN: %clang_cc1 %s -include-pch %t -verify -fsyntax-only
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
#pragma clang diagnostic ignored "-Wtautological-compare"
#else
void f() {
int a = 0;
int b = a==a;
}
#endif