clang/test/Sema/attr-cpuspecific.c

   1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -Wno-strict-prototypes -fsyntax-only -verify %s -Wnonnull
   2
   3 void __attribute__((cpu_specific(ivybridge))) no_default(void);
   4 void __attribute__((cpu_specific(sandybridge)))  no_default(void);
   5
   6 void use1(void){
   7   // Should be OK, default not a problem.
   8   no_default();
   9 }
  10
  11 int __attribute__((cpu_specific(atom))) addr_of(void);
  12 int __attribute__((cpu_specific(ivybridge)))  addr_of(void);
  13 int __attribute__((cpu_specific(ivybridge)))  addr_of2(void);
  14
  15 void use2(void){
  16   addr_of();
  17   addr_of2();
  18   // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}
  19   (void)+addr_of;
  20   // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}
  21   (void)+addr_of2;
  22   // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}
  23   (void)&addr_of;
  24   // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}
  25   (void)&addr_of2;
  26 }
  27
  28 // expected-error@+1 {{multiversioned function must have a prototype}}
  29 int __attribute__((cpu_specific(atom))) no_proto();
  30
  31 int __attribute__((cpu_specific(atom))) redecl1(void);
  32 int __attribute__((cpu_specific(atom))) redecl1(void) { return 1; }
  33
  34 int __attribute__((cpu_dispatch(atom))) redecl2(void);
  35 int __attribute__((cpu_dispatch(atom))) redecl2(void) { }
  36 // expected-error@+2 {{redefinition of 'redecl2'}}
  37 // expected-note@-2 {{previous definition is here}}
  38 int __attribute__((cpu_dispatch(atom))) redecl2(void) { }
  39
  40 int allow_fwd_decl(void);
  41 int __attribute__((cpu_dispatch(atom))) allow_fwd_decl(void) {}
  42
  43 int allow_fwd_decl2(void);
  44 void use_fwd_decl(void) {
  45   allow_fwd_decl2();
  46 }
  47 // expected-error@+1 {{function declaration cannot become a multiversioned function after first usage}}
  48 int __attribute__((cpu_dispatch(atom))) allow_fwd_decl2(void) {}
  49
  50
  51 int __attribute__((cpu_specific(atom))) redecl4(void);
  52 // expected-error@+1 {{function declaration is missing 'cpu_specific' or 'cpu_dispatch' attribute in a multiversioned function}}
  53 int redecl4(void);
  54
  55 // expected-warning@+1 {{CPU list contains duplicate entries; attribute ignored}}
  56 int __attribute__((cpu_specific(atom, atom))) dup_procs(void);
  57
  58 int __attribute__((cpu_specific(ivybridge, atom))) dup_procs2(void);
  59 // expected-error@+2 {{multiple 'cpu_specific' functions cannot specify the same CPU: 'atom'}}
  60 // expected-note@-2 {{previous declaration is here}}
  61 int __attribute__((cpu_specific(atom))) dup_procs2(void);
  62
  63 int __attribute__((cpu_specific(ivybridge, atom))) dup_procs3(void);
  64 // expected-error@+2 {{multiple 'cpu_specific' functions cannot specify the same CPU: 'ivybridge'}}
  65 // expected-note@-2 {{previous declaration is here}}
  66 int __attribute__((cpu_specific(atom, ivybridge))) dup_procs3(void);
  67
  68 int __attribute__((cpu_specific(atom))) redef(void) { return 1; }
  69 // expected-error@+2 {{redefinition of 'redef'}}
  70 // expected-note@-2 {{previous definition is here}}
  71 int __attribute__((cpu_specific(atom))) redef(void) { return 2; }
  72
  73 int __attribute((cpu_dispatch(atom))) mult_dispatch(void) {}
  74 // expected-error@+2 {{'cpu_dispatch' function redeclared with different CPUs}}
  75 // expected-note@-2 {{previous declaration is here}}
  76 int __attribute((cpu_dispatch(ivybridge))) mult_dispatch(void) {}
  77
  78 // expected-error@+1 {{'cpu_dispatch' attribute takes at least 1 argument}}
  79 int __attribute((cpu_dispatch())) no_dispatch(void) {}
  80 // expected-error@+1 {{'cpu_specific' attribute takes at least 1 argument}}
  81 int __attribute((cpu_specific())) no_specific(void) {}
  82
  83 //expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'used'}}
  84 void __attribute__((used,cpu_specific(sandybridge)))  addtl_attrs(void);
  85
  86 void __attribute__((target("default"))) addtl_attrs2(void);
  87 // expected-error@+2 {{multiversioning attributes cannot be combined}}
  88 // expected-note@-2 {{previous declaration is here}}
  89 void __attribute__((cpu_specific(sandybridge))) addtl_attrs2(void);
  90
  91 // expected-error@+2 {{'cpu_dispatch' and 'cpu_specific' attributes are not compatible}}
  92 // expected-note@+1 {{conflicting attribute is here}}
  93 void __attribute((cpu_specific(sandybridge), cpu_dispatch(atom, sandybridge)))
  94 combine_attrs(void);
  95
  96 int __attribute__((cpu_dispatch(ivybridge))) diff_cc(void){}
  97 // expected-error@+1 {{multiversioned function declaration has a different calling convention}}
  98 __vectorcall int __attribute__((cpu_specific(sandybridge))) diff_cc(void);
  99
 100 // expected-warning@+2 {{body of cpu_dispatch function will be ignored}}
 101 int __attribute__((cpu_dispatch(atom))) disp_with_body(void) {
 102   return 5;
 103 }
 104
 105 // expected-error@+1 {{invalid option 'INVALID'}}
 106 int __attribute__((cpu_specific(INVALID))) called_invalid_value(void){ return 1;}
 107 // expected-warning@+3 {{attribute declaration must precede definition}}
 108 // expected-note@-2 2 {{previous definition is here}}
 109 // expected-error@+1 {{redefinition of}}
 110 int __attribute__((cpu_specific(pentium_iii))) called_invalid_value(void){ return 2;}
 111 int __attribute__((cpu_specific(pentium_4))) called_invalid_value(void){ return 3;}
 112
 113 int use3(void) {
 114   return called_invalid_value();
 115 }
 116
 117 // expected-warning@+1 {{CPU list contains duplicate entries; attribute ignored}}
 118 int __attribute__((cpu_dispatch(pentium_iii, pentium_iii_no_xmm_regs))) dupe_p3(void);
 119
 120 void __attribute__((cpu_specific(atom), nothrow, nonnull(1))) addtl_attrs(int*);
 121
 122 int __attribute__((cpu_specific(atom))) bad_overload1(void);
 123 int __attribute__((cpu_specific(ivybridge))) bad_overload1(void);
 124 // expected-error@+1 {{function declaration is missing 'cpu_specific' or 'cpu_dispatch' attribute in a multiversioned function}}
 125 int bad_overload1(int);
 126
 127 int bad_overload2(int);
 128 // expected-error@+2 {{conflicting types for 'bad_overload2'}}
 129 // expected-note@-2 {{previous declaration is here}}
 130 int __attribute__((cpu_specific(atom))) bad_overload2(void);
 131 int __attribute__((cpu_specific(ivybridge))) bad_overload2(void);
 132
 133 int __attribute__((cpu_dispatch(generic))) bad_overload3(void);
 134 int __attribute__((cpu_specific(ivybridge))) bad_overload3(void);
 135 // expected-error@+1 {{function declaration is missing 'cpu_specific' or 'cpu_dispatch' attribute in a multiversioned function}}
 136 int bad_overload3(int);
 137
 138 int bad_overload4(int);
 139 // expected-error@+2 {{conflicting types for 'bad_overload4'}}
 140 // expected-note@-2 {{previous declaration is here}}
 141 int __attribute__((cpu_dispatch(generic))) bad_overload4(void);
 142 int __attribute__((cpu_specific(ivybridge))) bad_overload4(void);
 143
 144 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 145 int __attribute__((__overloadable__)) __attribute__((cpu_specific(generic))) bad_overload5(void);
 146 int __attribute__((cpu_specific(ivybridge))) bad_overload5(void);
 147
 148 int __attribute__((cpu_specific(generic))) bad_overload6(void);
 149 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 150 int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) bad_overload6(void);
 151
 152 int __attribute__((cpu_specific(atom))) good_overload1(void);
 153 int __attribute__((cpu_specific(ivybridge))) good_overload1(void);
 154 int __attribute__((__overloadable__)) good_overload1(int);
 155
 156 int __attribute__((__overloadable__)) good_overload2(int);
 157 int __attribute__((cpu_specific(atom))) good_overload2(void);
 158 int __attribute__((cpu_specific(ivybridge))) good_overload2(void);
 159
 160 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 161 int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload3(void);
 162 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 163 int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload3(void);
 164 int good_overload3(int);
 165
 166 int good_overload4(int);
 167 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 168 int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload4(void);
 169 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 170 int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload4(void);
 171
 172 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 173 int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload5(void);
 174 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 175 int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload5(int);
 176
 177 int __attribute__((cpu_specific(atom))) good_overload6(void);
 178 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 179 int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload6(int);
 180
 181 // expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}
 182 int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload7(void);
 183 int __attribute__((cpu_specific(ivybridge))) good_overload7(int);