Home | History | Annotate | Download | only in CodeGen
      1 // RUN: %clang_cc1 %s -triple i386-unknown-unknown -fvisibility default -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-DEFAULT
      2 // RUN: %clang_cc1 %s -triple i386-unknown-unknown -fvisibility protected -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-PROTECTED
      3 // RUN: %clang_cc1 %s -triple i386-unknown-unknown -fvisibility hidden -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-HIDDEN
      4 
      5 // CHECK-DEFAULT: @g_def = global i32 0
      6 // CHECK-DEFAULT: @g_com = common global i32 0
      7 // CHECK-DEFAULT: @g_ext = external global i32
      8 // CHECK-DEFAULT: @g_deferred = internal global
      9 // CHECK-PROTECTED: @g_def = protected global i32 0
     10 // CHECK-PROTECTED: @g_com = common protected global i32 0
     11 // CHECK-PROTECTED: @g_ext = external global i32
     12 // CHECK-PROTECTED: @g_deferred = internal global
     13 // CHECK-HIDDEN: @g_def = hidden global i32 0
     14 // CHECK-HIDDEN: @g_com = common hidden global i32 0
     15 // CHECK-HIDDEN: @g_ext = external global i32
     16 // CHECK-HIDDEN: @g_deferred = internal global
     17 int g_com;
     18 int g_def = 0;
     19 extern int g_ext;
     20 static char g_deferred[] = "hello";
     21 
     22 // CHECK-DEFAULT: @test4 = hidden global i32 10
     23 // CHECK-PROTECTED: @test4 = hidden global i32 10
     24 // CHECK-HIDDEN: @test4 = hidden global i32 10
     25 
     26 // CHECK-DEFAULT: define i32 @f_def()
     27 // CHECK-DEFAULT: declare void @f_ext()
     28 // CHECK-DEFAULT: define internal void @f_deferred()
     29 // CHECK-PROTECTED: define protected i32 @f_def()
     30 // CHECK-PROTECTED: declare void @f_ext()
     31 // CHECK-PROTECTED: define internal void @f_deferred()
     32 // CHECK-HIDDEN: define hidden i32 @f_def()
     33 // CHECK-HIDDEN: declare void @f_ext()
     34 // CHECK-HIDDEN: define internal void @f_deferred()
     35 
     36 extern void f_ext(void);
     37 
     38 static void f_deferred(void) {
     39 }
     40 
     41 int f_def(void) {
     42   f_ext();
     43   f_deferred();
     44   return g_com + g_def + g_ext + g_deferred[0];
     45 }
     46 
     47 // PR8457
     48 // CHECK-DEFAULT: define void @test1(
     49 // CHECK-PROTECTED: define void @test1(
     50 // CHECK-HIDDEN: define void @test1(
     51 struct Test1 { int field; };
     52 void  __attribute__((visibility("default"))) test1(struct Test1 *v) { }
     53 
     54 // rdar://problem/8595231
     55 // CHECK-DEFAULT: define void @test2()
     56 // CHECK-PROTECTED: define void @test2()
     57 // CHECK-HIDDEN: define void @test2()
     58 void test2(void);
     59 void __attribute__((visibility("default"))) test2(void) {}
     60 
     61 // CHECK-DEFAULT: define hidden void @test3()
     62 // CHECK-PROTECTED: define hidden void @test3()
     63 // CHECK-HIDDEN: define hidden void @test3()
     64 extern void test3(void);
     65 __private_extern__ void test3(void) {}
     66 
     67 // Top of file.
     68 extern int test4;
     69 __private_extern__ int test4 = 10;
     70 
     71 // rdar://12399248
     72 // CHECK-DEFAULT: define hidden void @test5()
     73 // CHECK-PROTECTED: define hidden void @test5()
     74 // CHECK-HIDDEN: define hidden void @test5()
     75 __attribute__((availability(macosx,introduced=10.5,deprecated=10.6)))
     76 __private_extern__ void test5(void) {}
     77