1 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-unreachable-code %s
2 
3 typedef __attribute__(( ext_vector_type(4) )) int int4;
4 
5 static int4 test1() {
f(enum X x)6   int4 vec, rv;
7 
8   // comparisons to self...
9   return vec == vec; // expected-warning{{self-comparison always evaluates to true}}
10   return vec != vec; // expected-warning{{self-comparison always evaluates to false}}
11   return vec < vec; // expected-warning{{self-comparison always evaluates to false}}
12   return vec <= vec; // expected-warning{{self-comparison always evaluates to true}}
13   return vec > vec; // expected-warning{{self-comparison always evaluates to false}}
14   return vec >= vec; // expected-warning{{self-comparison always evaluates to true}}
15 }
16 
17 
18 typedef __attribute__(( ext_vector_type(4) )) float float4;
19 
20 static int4 test2() {
21   float4 vec, rv;
22 
23   // comparisons to self.  no warning, they're floats
24   return vec == vec; // no-warning
25   return vec != vec; // no-warning
26   return vec < vec;  // no-warning
27   return vec <= vec; // no-warning
28   return vec > vec;  // no-warning
29   return vec >= vec; // no-warning
30 }
31 
32 static int4 test3() {
33   int4 i0, i1;
34 
35   return i0 > i1 ? i0 : i1; // no-error
36   return i0 ? i0 : i1;      // no-error
37 }
38 
39 static float4 test4() {
40   float4 f0, f1;
41 
42   // This would actually generate implicit casting warning
43   // under Weverything flag but we don't really care here
44   return f0 > f1 ? f0 : f1; // no-error
45   return f0 ? f0 : f1;      // expected-error {{used type 'float4' (vector of 4 'float' values) where floating point type is not allowed}}
46 }
47