1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 
3 typedef enum { XX } EnumType;
4 struct S { int x; };
5 
6 // Check enumerations. Vector modes on enum types must cause an error.
7 template <class T>
CheckEnumerations()8 void CheckEnumerations() {
9   // Check that non-vector 'mode' attribute is OK with enumeration types.
10   typedef T __attribute__((mode(QI))) T1;
11   typedef T T2 __attribute__((mode(HI)));
12   typedef T __attribute__((mode(V8SI))) T3; // expected-error{{mode 'V8SI' is not supported for enumeration types}}
13   // expected-warning@-1{{specifying vector types with the 'mode' attribute is deprecated}}
14 
15   typedef enum __attribute__((mode(HI))) { A4, B4 } T4;
16   typedef enum { A5, B5 } __attribute__((mode(SI))) T5;
17   typedef enum __attribute__((mode(V2SI))) { A6, B6 } T6; // expected-error{{mode 'V2SI' is not supported for enumeration types}}
18                                                           // expected-warning@-1{{deprecated}}
19   typedef enum { A7, B7 } __attribute__((mode(V2QI))) T7; // expected-error{{mode 'V2QI' is not supported for enumeration types}}
20                                                           // expected-warning@-1{{deprecated}}
21 }
22 
23 // Check that attribute applies only for integer and floating-point types.
24 // OK when instantiated with 'int', error with structure types, for example.
25 template <class T>
CheckPrimitiveTypes()26 void CheckPrimitiveTypes() {
27   typedef T __attribute__((mode(QI))) T1;    // expected-error{{mode attribute only supported for integer and floating-point types}}
28   typedef T __attribute__((mode(V2SI))) VT1; // expected-error{{mode attribute only supported for integer and floating-point types}}
29   // expected-warning@-1{{specifying vector types with the 'mode' attribute is deprecated}}
30 }
31 
32 // Check that attribute supports certain modes. Check that wrong machine modes
33 // are NOT diagnosed twice during instantiation.
34 template <class T>
CheckMachineMode()35 void CheckMachineMode() {
36   typedef T __attribute__((mode(QI))) T1; // expected-error{{type of machine mode does not match type of base type}}
37   typedef T __attribute__((mode(HI))) T2; // expected-error{{type of machine mode does not match type of base type}}
38   typedef T __attribute__((mode(SI))) T3; // expected-error{{type of machine mode does not match type of base type}}
39   typedef T __attribute__((mode(DI))) T4; // expected-error{{type of machine mode does not match type of base type}}
40   typedef T __attribute__((mode(SF))) T5; // expected-error2{{type of machine mode does not match type of base type}}
41   typedef T __attribute__((mode(DF))) T6; // expected-error2{{type of machine mode does not match type of base type}}
42   typedef T __attribute__((mode(II))) T7; // expected-error{{unknown machine mode}}
43   typedef T __attribute__((mode(12))) T8; // expected-error{{'mode' attribute requires an identifier}}
44 }
45 
46 // Check attributes on function parameters.
47 template <class T1, class T2>
CheckParameters(T1 paramSI,T1 paramV4DI,T2 paramSF,T2 paramV4DF)48 void CheckParameters(T1 __attribute__((mode(SI)))   paramSI,     // expected-note2{{ignored: substitution failure}}
49                      T1 __attribute__((mode(V4DI))) paramV4DI,   // expected-warning{{deprecated}}
50                      T2 __attribute__((mode(SF)))   paramSF,
51                      T2 __attribute__((mode(V4DF))) paramV4DF) { // expected-warning{{deprecated}}
52 }
53 
54 
55 // Check dependent structure.
56 template <class T>
57 struct TemplatedStruct {
58   // Check fields.
59   T __attribute__((mode(HI)))     x1;
60   T __attribute__((mode(V4HI)))   x2;         // expected-error{{mode 'V4HI' is not supported for enumeration types}}
61                                               // expected-warning@-1{{deprecated}}
62 
63   // Check typedefs.
64   typedef T __attribute__((mode(DI)))   T1;
65   typedef T __attribute__((mode(V8DI))) T2;   // expected-error{{mode 'V8DI' is not supported for enumeration types}}
66                                               // expected-warning@-1{{deprecated}}
67 
68   // Check parameters.
f1TemplatedStruct69   void f1(T __attribute__((mode(QI))) x) {}
f2TemplatedStruct70   void f2(T __attribute__((mode(SF))) x) {}   // expected-error2{{type of machine mode does not match type of base type}}
f3TemplatedStruct71   void f3(T __attribute__((mode(V4QI))) x) {} // expected-error{{mode 'V4QI' is not supported for enumeration types}}
72                                               // expected-warning@-1{{deprecated}}
73 
74   // Check attribute on methods - it is invalid.
g1TemplatedStruct75   __attribute__((mode(QI))) T g1() { return 0; } // expected-error{{'mode' attribute only applies to variables, enums, fields and typedefs}}
76 };
77 
78 
79 
main()80 int main() {
81   CheckEnumerations<int>();
82   CheckEnumerations<EnumType>(); // expected-note{{in instantiation of}}
83 
84   CheckPrimitiveTypes<int>();
85   CheckPrimitiveTypes<S>();      // expected-note{{in instantiation of}}
86 
87   // 'II' mode is unknown, no matter what we instantiate with.
88   CheckMachineMode<int>();       // expected-note{{in instantiation of}}
89   CheckMachineMode<EnumType>();  // expected-note{{in instantiation of}}
90   CheckMachineMode<float>();     // expected-note{{in instantiation of}}
91 
92   int   __attribute__((mode(V4DI))) valV4DI; // expected-warning{{deprecated}}
93   float __attribute__((mode(V4DF))) valV4DF; // expected-warning{{deprecated}}
94   // OK.
95   CheckParameters<int, float>(0, valV4DI, 1.0, valV4DF);
96   // Enumeral type with vector mode is invalid.
97   CheckParameters<EnumType, float>(0, valV4DI, 1.0, valV4DF); // expected-error{{no matching function for call}}
98   // 'V4DF' mode with 'int' type is invalid.
99   CheckParameters<int, int>(0, valV4DI, 1, valV4DF); // expected-error{{no matching function for call}}
100 
101   TemplatedStruct<int>      s1; // expected-note{{in instantiation of}}
102   TemplatedStruct<EnumType> s2; // expected-note{{in instantiation of}}
103   return 0;
104 }
105