clang/test/CodeGen/set-visibility-for-decls.c

   1 // RUN: %clang_cc1 %s -std=c11 -triple=x86_64-pc-linux -fvisibility=hidden -fapply-global-visibility-to-externs -emit-llvm -o - | FileCheck --check-prefix=CHECK-HIDDEN %s
   2 // RUN: %clang_cc1 %s -std=c11 -triple=x86_64-pc-linux -fvisibility=protected -fapply-global-visibility-to-externs -emit-llvm -o - | FileCheck --check-prefix=CHECK-PROTECTED %s
   3 // RUN: %clang_cc1 %s -std=c11 -triple=x86_64-pc-linux -fvisibility=default -fapply-global-visibility-to-externs -emit-llvm -o - | FileCheck --check-prefix=CHECK-DEFAULT %s
   4
   5 // CHECK-HIDDEN: @var_hidden = external hidden global
   6 // CHECK-PROTECTED: @var_hidden = external hidden global
   7 // CHECK-DEFAULT: @var_hidden = external hidden global
   8 __attribute__((visibility("hidden"))) extern int var_hidden;
   9 // CHECK-HIDDEN: @var_protected = external protected global
  10 // CHECK-PROTECTED: @var_protected = external protected global
  11 // CHECK-DEFAULT: @var_protected = external protected global
  12 __attribute__((visibility("protected"))) extern int var_protected;
  13 // CHECK-HIDDEN: @var_default = external global
  14 // CHECK-PROTECTED: @var_default = external global
  15 // CHECK-DEFAULT: @var_default = external global
  16 __attribute__((visibility("default"))) extern int var_default;
  17 // CHECK-HIDDEN: @var = external hidden global
  18 // CHECK-PROTECTED: @var = external protected global
  19 // CHECK-DEFAULT: @var = external global
  20 extern int var;
  21
  22 // CHECK-HIDDEN: declare hidden i32 @func_hidden()
  23 // CHECK-PROTECTED: declare hidden i32 @func_hidden()
  24 // CHECK-DEFAULT: declare hidden i32 @func_hidden()
  25 __attribute__((visibility("hidden"))) int func_hidden(void);
  26 // CHECK-HIDDEN: declare protected i32 @func_protected()
  27 // CHECK-PROTECTED: declare protected i32 @func_protected()
  28 // CHECK-DEFAULT: declare protected i32 @func_protected()
  29 __attribute__((visibility("protected"))) int func_protected(void);
  30 // CHECK-HIDDEN: declare i32 @func_default()
  31 // CHECK-PROTECTED: declare i32 @func_default()
  32 // CHECK-DEFAULT: declare i32 @func_default()
  33 __attribute__((visibility("default"))) int func_default(void);
  34 // CHECK-HIDDEN: declare hidden i32 @func()
  35 // CHECK-PROTECTED: declare protected i32 @func()
  36 // CHECK-DEFAULT: declare i32 @func()
  37 int func(void);
  38
  39 int use(void) {
  40   return var_hidden + var_protected + var_default + var +
  41          func_hidden() + func_protected() + func_default() + func();
  42 }