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// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s
namespace foo {
// CHECK-NOT: @a = global
extern "C" int a;
// CHECK-NOT: @_ZN3foo1bE = global
extern int b;
// CHECK: @_ZN3foo1cE = global
int c = 5;
// CHECK-NOT: @_ZN3foo1dE
extern "C" struct d;
// CHECK-NOT: should_not_appear
extern "C++" int should_not_appear;
}
namespace test1 {
namespace {
struct X {};
}
extern "C" {
// CHECK: @test1_b = global
X test1_b = X();
}
void *use = &test1_b;
// CHECK: @_ZN5test13useE = global
}
namespace test2 {
namespace {
struct X {};
}
// CHECK: @test2_b = global
extern "C" X test2_b;
X test2_b;
}
extern "C" {
static int unused_var;
static int unused_fn() { return 0; }
__attribute__((used)) static int internal_var;
__attribute__((used)) static int internal_fn() { return 0; }
__attribute__((used)) static int duplicate_internal_var;
__attribute__((used)) static int duplicate_internal_fn() { return 0; }
namespace N {
__attribute__((used)) static int duplicate_internal_var;
__attribute__((used)) static int duplicate_internal_fn() { return 0; }
}
// CHECK: @llvm.used = appending global {{.*}} @internal_var {{.*}} @internal_fn
// CHECK-NOT: @unused
// CHECK-NOT: @duplicate_internal
// CHECK: @internal_var = alias internal i32* @_Z12internal_var
// CHECK-NOT: @unused
// CHECK-NOT: @duplicate_internal
// CHECK: @internal_fn = alias internal i32 ()* @_Z11internal_fnv
// CHECK-NOT: @unused
// CHECK-NOT: @duplicate_internal
}
namespace PR19411 {
struct A { void f(); };
extern "C" void A::f() { void g(); g(); }
// CHECK-LABEL: @_ZN7PR194111A1fEv(
// CHECK: call void @g()
}
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