xref: /aosp_15_r20/external/clang/test/Sema/atomic-compare.c (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 %s -verify -fsyntax-only -Wno-logical-not-parentheses
2*67e74705SXin Li 
f(_Atomic (int)a,_Atomic (int)b)3*67e74705SXin Li void f(_Atomic(int) a, _Atomic(int) b) {
4*67e74705SXin Li   if (a > b)      {} // no warning
5*67e74705SXin Li   if (a < b)      {} // no warning
6*67e74705SXin Li   if (a >= b)     {} // no warning
7*67e74705SXin Li   if (a <= b)     {} // no warning
8*67e74705SXin Li   if (a == b)     {} // no warning
9*67e74705SXin Li   if (a != b)     {} // no warning
10*67e74705SXin Li 
11*67e74705SXin Li   if (a == 0) {} // no warning
12*67e74705SXin Li   if (a > 0) {} // no warning
13*67e74705SXin Li   if (a > 1) {} // no warning
14*67e74705SXin Li   if (a > 2) {} // no warning
15*67e74705SXin Li 
16*67e74705SXin Li   if (!a > 0) {}  // no warning
17*67e74705SXin Li   if (!a > 1)     {} // expected-warning {{comparison of constant 1 with boolean expression is always false}}
18*67e74705SXin Li   if (!a > 2)     {} // expected-warning {{comparison of constant 2 with boolean expression is always false}}
19*67e74705SXin Li   if (!a > b)     {} // no warning
20*67e74705SXin Li   if (!a > -1)    {} // expected-warning {{comparison of constant -1 with boolean expression is always true}}
21*67e74705SXin Li }
22*67e74705SXin Li 
23*67e74705SXin Li typedef _Atomic(int) Ty;
PR23638(Ty * a)24*67e74705SXin Li void PR23638(Ty *a) {
25*67e74705SXin Li   if (*a == 1) {} // no warning
26*67e74705SXin Li }
27