// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s namespace foo { // CHECK-NOT: @a = global i32 extern "C" int a; // CHECK-NOT: @_ZN3foo1bE = global i32 extern int b; // CHECK: @_ZN3foo1cE = global i32 int c = 5; // CHECK-NOT: @_ZN3foo1dE extern "C" struct d; } 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 }