clang/test/Sema/attr-loader-uninitialized.cpp

   1 // RUN: %clang_cc1 %s -verify -fsyntax-only
   2
   3 int good __attribute__((loader_uninitialized));
   4 static int local_ok __attribute__((loader_uninitialized));
   5 int hidden_ok __attribute__((visibility("hidden"))) __attribute__((loader_uninitialized));
   6
   7 const int still_cant_be_const __attribute__((loader_uninitialized));
   8 extern int external_rejected __attribute__((loader_uninitialized));
   9 // expected-error@-1 {{variable 'external_rejected' cannot be declared both 'extern' and with the 'loader_uninitialized' attribute}}
  10
  11 struct S;
  12 extern S incomplete_external_rejected __attribute__((loader_uninitialized));
  13 // expected-error@-1 {{variable 'incomplete_external_rejected' cannot be declared both 'extern' and with the 'loader_uninitialized' attribute}}
  14
  15 int noargs __attribute__((loader_uninitialized(0)));
  16 // expected-error@-1 {{'loader_uninitialized' attribute takes no arguments}}
  17
  18 int init_rejected __attribute__((loader_uninitialized)) = 42;
  19 // expected-error@-1 {{variable with 'loader_uninitialized' attribute cannot have an initializer}}
  20
  21 void func() __attribute__((loader_uninitialized))
  22 // expected-warning@-1 {{'loader_uninitialized' attribute only applies to global variables}}
  23 {
  24   int local __attribute__((loader_uninitialized));
  25   // expected-warning@-1 {{'loader_uninitialized' attribute only applies to global variables}}
  26
  27   static int sl __attribute__((loader_uninitialized));
  28 }
  29
  30 struct s {
  31   __attribute__((loader_uninitialized)) int field;
  32   // expected-warning@-1 {{'loader_uninitialized' attribute only applies to global variables}}
  33
  34   static __attribute__((loader_uninitialized)) int sfield;
  35
  36 } __attribute__((loader_uninitialized));
  37 // expected-warning@-1 {{'loader_uninitialized' attribute only applies to global variables}}
  38
  39 int redef_attr_first __attribute__((loader_uninitialized));
  40 int redef_attr_first;
  41 // expected-error@-1 {{redefinition of 'redef_attr_first'}}
  42 // expected-note@-3 {{previous definition is here}}
  43
  44 int redef_attr_second;
  45 int redef_attr_second __attribute__((loader_uninitialized));
  46 // expected-warning@-1 {{attribute declaration must precede definition}}
  47 // expected-note@-3 {{previous definition is here}}
  48 // expected-error@-3 {{redefinition of 'redef_attr_second'}}
  49 // expected-note@-5 {{previous definition is here}}
  50
  51 struct trivial {};
  52
  53 trivial default_ok __attribute__((loader_uninitialized));
  54 trivial value_rejected  __attribute__((loader_uninitialized)) {};
  55 // expected-error@-1 {{variable with 'loader_uninitialized' attribute cannot have an initializer}}
  56
  57 struct nontrivial
  58 {
  59   nontrivial() {}
  60 };
  61
  62 nontrivial needs_trivial_ctor __attribute__((loader_uninitialized));
  63 // expected-error@-1 {{variable with 'loader_uninitialized' attribute must have a trivial default constructor}}
  64
  65 struct Incomplete;
  66 Incomplete incomplete __attribute__((loader_uninitialized));
  67 // expected-error@-1 {{variable has incomplete type 'Incomplete'}}
  68 // expected-note@-3 {{forward declaration of 'Incomplete'}}
  69
  70 struct Incomplete s_incomplete __attribute__((loader_uninitialized));
  71 // expected-error@-1 {{variable has incomplete type 'struct Incomplete'}}
  72 // expected-note@-7 {{forward declaration of 'Incomplete'}}