1 // RUN: %clang_cc1 %s -verify -fsyntax-only -Wno-logical-not-parentheses 2 3 void f(_Atomic(int) a, _Atomic(int) b) { 4 if (a > b) {} // no warning 5 if (a < b) {} // no warning 6 if (a >= b) {} // no warning 7 if (a <= b) {} // no warning 8 if (a == b) {} // no warning 9 if (a != b) {} // no warning 10 11 if (a == 0) {} // no warning 12 if (a > 0) {} // no warning 13 if (a > 1) {} // no warning 14 if (a > 2) {} // no warning 15 16 if (!a > 0) {} // no warning 17 if (!a > 1) {} // expected-warning {{comparison of constant 1 with boolean expression is always false}} 18 if (!a > 2) {} // expected-warning {{comparison of constant 2 with boolean expression is always false}} 19 if (!a > b) {} // no warning 20 if (!a > -1) {} // expected-warning {{comparison of constant -1 with boolean expression is always true}} 21 } 22 23 typedef _Atomic(int) Ty; 24 void PR23638(Ty *a) { 25 if (*a == 1) {} // no warning 26 } 27
