| // 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 = internal alias i32, i32* @_Z12internal_var |
| // CHECK-NOT: @unused |
| // CHECK-NOT: @duplicate_internal |
| // CHECK: @internal_fn = internal alias i32 (), 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() |
| } |