52 lines · c
1// RUN: %clang_cc1 -fsyntax-only -verify %s2 3// Test checks that 'mode' attribute is handled correctly with enums, i. e. code4// 1. "typedef enum { A } __attribute__((mode(HI))) T;" is accepted,5// 2. "enum X __attribute__((mode(QI))) var;" forms a complete integer type.6// 3. "enum { A } __attribute__((mode(V4SI))) var;" is not accepted (vector mode).7 8typedef enum { E4 } EnumType;9 10int main(void) {11 // Vector mode are not allowed with enums.12 typedef enum { E1 } __attribute__((mode(V4QI))) RejectedType1; // expected-error{{mode 'V4QI' is not supported for enumeration types}}13 // expected-warning@-1{{specifying vector types with the 'mode' attribute is deprecated}}14 typedef enum __attribute__((mode(V8HI))) { E2 } RejectedType2; // expected-error{{mode 'V8HI' is not supported for enumeration types}}15 // expected-warning@-1{{deprecated}}16 typedef enum E3 __attribute__((mode(V2SI))) RejectedType3; // expected-error{{mode 'V2SI' is not supported for enumeration types}}17 // expected-warning@-1{{deprecated}}18 typedef EnumType __attribute__((mode(V4DI))) RejectedType4; // expected-error{{mode 'V4DI' is not supported for enumeration types}}19 // expected-warning@-1{{deprecated}}20 EnumType v1 __attribute__((mode(V4QI))); // expected-error{{mode 'V4QI' is not supported for enumeration types}}21 // expected-warning@-1{{deprecated}}22 enum __attribute__((mode(V8HI))) { E5 } v2; // expected-error{{mode 'V8HI' is not supported for enumeration types}}23 // expected-warning@-1{{deprecated}}24 25 // Incomplete enums without mode attribute are not allowed.26 typedef enum Y IncompleteYType; // expected-note{{forward declaration of 'enum Y'}}27 28 enum X a1; // expected-error{{variable has incomplete type 'enum X'}}29 // expected-note@-1{{forward declaration of 'enum X'}}30 IncompleteYType a2; // expected-error{{variable has incomplete type 'IncompleteYType' (aka 'enum Y')}}31 32 // OK with 'mode' attribute.33 typedef enum Y __attribute__((mode(QI))) CompleteYType1;34 typedef enum Y CompleteYType2 __attribute__((mode(HI)));35 typedef enum { A1, B1 } __attribute__((mode(QI))) CompleteType3;36 typedef enum { A2, B2 } CompleteType4 __attribute__((mode(QI)));37 typedef enum __attribute__((mode(QI))) { A3, B3 } CompleteType5;38 39 enum X __attribute__((mode(QI))) a3;40 enum X a4 __attribute__((mode(HI)));41 IncompleteYType __attribute__((mode(QI))) a5;42 IncompleteYType a6 __attribute__((mode(HI)));43 CompleteYType1 a7;44 CompleteYType2 a8;45 CompleteType3 a9;46 CompleteType4 a10;47 CompleteType5 a11;48 enum __attribute__((mode(QI))) { A4, B4 } a12;49 50 return 0;51}52