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Tests for #pragma GCC visibility. 

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110316 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2010-08-05 07:00:53 +00:00
parent aa8b0d1924
commit 62e22ee7a1
3 changed files with 105 additions and 0 deletions
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24
test/CodeGen/pragma-visibility.c Normal file
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// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
#pragma GCC visibility push(hidden)
int x = 2;
// CHECK: @x = hidden global
extern int y;
#pragma GCC visibility pop
int y = 4;
// CHECK: @y = hidden global
#pragma GCC visibility push(hidden)
extern __attribute((visibility("default"))) int z;
int z = 0;
// CHECK: @z = global
#pragma GCC visibility pop
#pragma GCC visibility push(hidden)
void f() {}
// CHECK: define hidden void @f
__attribute((visibility("default"))) void g();
void g() {}
// CHECK: define void @g

72
test/CodeGenCXX/pragma-visibility.cpp Normal file
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// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
#pragma GCC visibility push(hidden)
struct x {
static int y;
};
#pragma GCC visibility pop
int x::y = 10;
// CHECK: @_ZN1x1yE = hidden global
#pragma GCC visibility push(hidden)
struct __attribute((visibility("default"))) x2 {
static int y;
};
int x2::y = 10;
// CHECK: @_ZN2x21yE = global
#pragma GCC visibility pop
#pragma GCC visibility push(hidden)
struct x3 {
static int y;
} __attribute((visibility("default")));
int x3::y = 10;
// CHECK: @_ZN2x31yE = global
#pragma GCC visibility pop
#pragma GCC visibility push(hidden)
template<class T> struct x4 {
static int y;
};
#pragma GCC visibility pop
template<> int x4<int>::y = 10;
// CHECK: @_ZN2x4IiE1yE = hidden global i32
#pragma GCC visibility push(hidden)
template<int x> int f() { return x; }
extern "C" int g() { return f<3>(); }
#pragma GCC visibility pop
// CHECK: define hidden i32 @g()
// CHECK: define linkonce_odr hidden i32 @_Z1fILi3EEiv()
#pragma GCC visibility push(hidden)
template<class T> struct x5 {
void y();
};
#pragma GCC visibility pop
template<> void x5<int>::y() {}
// CHECK: define hidden void @_ZN2x5IiE1yEv
#pragma GCC visibility push(hidden)
namespace n __attribute((visibility("default"))) {
void f() {}
// CHECK: define void @_ZN1n1fEv
}
#pragma GCC visibility pop
namespace n __attribute((visibility("default"))) {
extern int foofoo; // FIXME: Shouldn't be necessary, but otherwise the pragma
// gets to Sema before the namespace!
#pragma GCC visibility push(hidden)
void g() {}
// CHECK: define hidden void @_ZN1n1gEv
#pragma GCC visibility pop
}
namespace n __attribute((visibility("hidden"))) {
extern int foofoo; // FIXME: Shouldn't be necessary, but otherwise the pragma
// gets to Sema before the namespace!
#pragma GCC visibility pop
void h() {}
// CHECK: define void @_ZN1n1hEv
}

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test/Parser/pragma-visibility.c Normal file
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// RUN: %clang_cc1 -fsyntax-only -verify %s
#pragma GCC visibility foo // expected-warning{{expected identifier in '#pragma visibility' - ignored}}
#pragma GCC visibility pop foo // expected-warning{{extra tokens at end of '#pragma visibility' - ignored}}
#pragma GCC visibility push // expected-warning{{missing '(' after '#pragma visibility'}}
#pragma GCC visibility push( // expected-warning{{expected identifier in '#pragma visibility' - ignored}}
#pragma GCC visibility push(hidden // expected-warning{{missing ')' after '#pragma visibility' - ignoring}}
#pragma GCC visibility push(hidden)
#pragma GCC visibility pop