xref: /minix3/external/bsd/llvm/dist/clang/test/Sema/atomic-compare.c (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)
1*0a6a1f1dSLionel Sambuc // RUN: %clang_cc1 %s -verify -fsyntax-only
2*0a6a1f1dSLionel Sambuc 
f(_Atomic (int)a,_Atomic (int)b)3*0a6a1f1dSLionel Sambuc void f(_Atomic(int) a, _Atomic(int) b) {
4*0a6a1f1dSLionel Sambuc   if (a > b)      {} // no warning
5*0a6a1f1dSLionel Sambuc   if (a < b)      {} // no warning
6*0a6a1f1dSLionel Sambuc   if (a >= b)     {} // no warning
7*0a6a1f1dSLionel Sambuc   if (a <= b)     {} // no warning
8*0a6a1f1dSLionel Sambuc   if (a == b)     {} // no warning
9*0a6a1f1dSLionel Sambuc   if (a != b)     {} // no warning
10*0a6a1f1dSLionel Sambuc 
11*0a6a1f1dSLionel Sambuc   if (a == 0) {} // no warning
12*0a6a1f1dSLionel Sambuc   if (a > 0) {} // no warning
13*0a6a1f1dSLionel Sambuc   if (a > 1) {} // no warning
14*0a6a1f1dSLionel Sambuc   if (a > 2) {} // no warning
15*0a6a1f1dSLionel Sambuc 
16*0a6a1f1dSLionel Sambuc   if (!a > 0) {}  // no warning
17*0a6a1f1dSLionel Sambuc   if (!a > 1)     {} // expected-warning {{comparison of constant 1 with boolean expression is always false}}
18*0a6a1f1dSLionel Sambuc   if (!a > 2)     {} // expected-warning {{comparison of constant 2 with boolean expression is always false}}
19*0a6a1f1dSLionel Sambuc   if (!a > b)     {} // no warning
20*0a6a1f1dSLionel Sambuc   if (!a > -1)    {} // expected-warning {{comparison of constant -1 with boolean expression is always true}}
21*0a6a1f1dSLionel Sambuc }
22