clang/test/Parser/c2x-attribute-keywords.c

   1 // RUN: %clang_cc1 -fsyntax-only -triple aarch64-none-linux-gnu -target-feature +sme -verify=expected,notc2x -Wno-strict-prototypes %s
   2 // RUN: %clang_cc1 -fsyntax-only -triple aarch64-none-linux-gnu -target-feature +sme -verify=expected,c2x %s
   3
   4 enum __arm_streaming E { // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
   5   One __arm_streaming, // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
   6   Two,
   7   Three __arm_streaming // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
   8 };
   9
  10 enum __arm_streaming { Four }; // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  11 __arm_streaming enum E2 { Five }; // expected-error {{misplaced '__arm_streaming'}}
  12
  13 // FIXME: this diagnostic can be improved.
  14 enum { __arm_streaming Six }; // expected-error {{expected identifier}}
  15
  16 // FIXME: this diagnostic can be improved.
  17 enum E3 __arm_streaming { Seven }; // expected-error {{expected identifier or '('}}
  18
  19 struct __arm_streaming S1 { // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  20   int i __arm_streaming; // expected-error {{'__arm_streaming' only applies to function types}}
  21   int __arm_streaming j; // expected-error {{'__arm_streaming' only applies to function types}}
  22   int k[10] __arm_streaming; // expected-error {{'__arm_streaming' only applies to function types}}
  23   int l __arm_streaming[10]; // expected-error {{'__arm_streaming' only applies to function types}}
  24   __arm_streaming int m, n; // expected-error {{'__arm_streaming' only applies to function types}}
  25   int o __arm_streaming : 12; // expected-error {{'__arm_streaming' only applies to function types}}
  26   int __arm_streaming : 0; // expected-error {{'__arm_streaming' only applies to function types}}
  27   int p, __arm_streaming : 0; // expected-error {{'__arm_streaming' cannot appear here}}
  28   int q, __arm_streaming r; // expected-error {{'__arm_streaming' cannot appear here}}
  29   __arm_streaming int; // expected-error {{'__arm_streaming' cannot appear here}} \
  30             // expected-warning {{declaration does not declare anything}}
  31 };
  32
  33 __arm_streaming struct S2 { int a; }; // expected-error {{misplaced '__arm_streaming'}}
  34 struct S3 __arm_streaming { int a; }; // expected-error {{'__arm_streaming' cannot appear here}} \
  35                                          expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  36
  37 union __arm_streaming U { // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  38   double d __arm_streaming; // expected-error {{'__arm_streaming' only applies to function types; type here is 'double'}}
  39   __arm_streaming int i; // expected-error {{'__arm_streaming' only applies to function types; type here is 'int'}}
  40 };
  41
  42 __arm_streaming union U2 { double d; }; // expected-error {{misplaced '__arm_streaming'}}
  43 union U3 __arm_streaming { double d; }; // expected-error {{'__arm_streaming' cannot appear here}} \
  44                                            expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  45
  46 struct __arm_streaming IncompleteStruct; // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  47 union __arm_streaming IncompleteUnion; // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  48 enum __arm_streaming IncompleteEnum; // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  49
  50 __arm_streaming void f1(void); // expected-error {{'__arm_streaming' cannot be applied to a declaration}}
  51 void __arm_streaming f2(void); // expected-error {{'__arm_streaming' only applies to function types}}
  52 void f3 __arm_streaming (void); // expected-error {{'__arm_streaming' cannot be applied to a declaration}}
  53 void f4(void) __arm_streaming;
  54
  55 void f5(int i __arm_streaming, __arm_streaming int j, int __arm_streaming k); // expected-error 3 {{'__arm_streaming' only applies to function types}}
  56
  57 void f6(a, b) __arm_streaming int a; int b; { // expected-error {{'__arm_streaming' cannot appear here}} \
  58                                                  c2x-warning {{deprecated}}
  59 }
  60
  61 // FIXME: technically, an attribute list cannot appear here, but we currently
  62 // parse it as part of the return type of the function, which is reasonable
  63 // behavior given that we *don't* want to parse it as part of the K&R parameter
  64 // declarations. It is disallowed to avoid a parsing ambiguity we already
  65 // handle well.
  66 int (*f7(a, b))(int, int) __arm_streaming int a; int b; { // c2x-warning {{deprecated}}
  67   return 0;
  68 }
  69
  70 __arm_streaming int a, b; // expected-error {{'__arm_streaming' only applies to function types}}
  71 int c __arm_streaming, d __arm_streaming; // expected-error 2 {{'__arm_streaming' only applies to function types}}
  72
  73 void f8(void) __arm_streaming {
  74   __arm_streaming int i, j; // expected-error {{'__arm_streaming' only applies to function types}}
  75   int k, l __arm_streaming; // expected-error {{'__arm_streaming' only applies to function types}}
  76 }
  77
  78 __arm_streaming void f9(void) { // expected-error {{'__arm_streaming' cannot be applied to a declaration}}
  79   int i[10] __arm_streaming; // expected-error {{'__arm_streaming' only applies to function types}}
  80   int (*fp1)(void)__arm_streaming;
  81   int (*fp2 __arm_streaming)(void); // expected-error {{'__arm_streaming' cannot be applied to a declaration}}
  82
  83   int * __arm_streaming *ipp; // expected-error {{'__arm_streaming' only applies to function types}}
  84 }
  85
  86 void f10(int j[static 10] __arm_streaming, int k[*] __arm_streaming); // expected-error 2 {{'__arm_streaming' only applies to function types}}
  87
  88 void f11(void) {
  89   __arm_streaming {} // expected-error {{'__arm_streaming' cannot be applied to a statement}}
  90   __arm_streaming if (1) {} // expected-error {{'__arm_streaming' cannot be applied to a statement}}
  91
  92   __arm_streaming switch (1) { // expected-error {{'__arm_streaming' cannot be applied to a statement}}
  93   __arm_streaming case 1: __arm_streaming break; // expected-error 2 {{'__arm_streaming' cannot be applied to a statement}}
  94   __arm_streaming default: break; // expected-error {{'__arm_streaming' cannot be applied to a statement}}
  95   }
  96
  97   goto foo;
  98   __arm_streaming foo: (void)1; // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}}
  99
 100   __arm_streaming for (;;); // expected-error {{'__arm_streaming' cannot be applied to a statement}}
 101   __arm_streaming while (1); // expected-error {{'__arm_streaming' cannot be applied to a statement}}
 102   __arm_streaming do __arm_streaming { } while(1); // expected-error 2 {{'__arm_streaming' cannot be applied to a statement}}
 103
 104   __arm_streaming (void)1; // expected-error {{'__arm_streaming' cannot be applied to a statement}}
 105
 106   __arm_streaming; // expected-error {{'__arm_streaming' cannot be applied to a statement}}
 107
 108   (void)sizeof(int [4]__arm_streaming); // expected-error {{'__arm_streaming' only applies to function types}}
 109   (void)sizeof(struct __arm_streaming S3 { int a __arm_streaming; }); // expected-error {{'__arm_streaming' only applies to non-K&R-style functions}} \
 110                                                                       // expected-error {{'__arm_streaming' only applies to function types; type here is 'int'}}
 111
 112   __arm_streaming return; // expected-error {{'__arm_streaming' cannot be applied to a statement}}
 113
 114   __arm_streaming asm (""); // expected-error {{'__arm_streaming' cannot appear here}}
 115 }
 116
 117 struct __arm_streaming S4 *s; // expected-error {{'__arm_streaming' cannot appear here}}
 118 struct S5 {};
 119 int c = sizeof(struct __arm_streaming S5); // expected-error {{'__arm_streaming' cannot appear here}}