clang/test/CodeGenCXX/key-function-vtable.cpp

   1 // RUN: %clang_cc1 -triple x86_64-none-linux-gnu %s -emit-llvm -o - | FileCheck %s
   2 // RUN: %clang_cc1 -triple arm-apple-darwin %s -emit-llvm -o - | FileCheck %s
   3
   4 // Simple key function test
   5 struct testa { virtual void a(); };
   6 void testa::a() {}
   7
   8 // Simple key function test
   9 struct testb { virtual void a() {} };
  10 testb *testbvar = new testb;
  11
  12 // Key function with out-of-line inline definition
  13 struct testc { virtual void a(); };
  14 inline void testc::a() {}
  15
  16 // Functions with inline specifier are not key functions (PR5705)
  17 struct testd { inline virtual void a(); };
  18 void testd::a() {}
  19
  20 // Functions with inline specifier are not key functions (PR5705)
  21 struct teste { inline virtual void a(); };
  22 teste *testevar = new teste;
  23
  24 // Key functions with namespace (PR5711)
  25 namespace {
  26   struct testf { virtual void a(); };
  27 }
  28 void testf::a() {}
  29
  30 // Key functions with namespace (PR5711)
  31 namespace {
  32   struct testg { virtual void a(); };
  33 }
  34 void testg::a() {}
  35 testg *testgvar = new testg;
  36
  37 struct X0 { virtual ~X0(); };
  38 struct X1 : X0 {
  39   virtual void f();
  40 };
  41
  42 inline void X1::f() { }
  43
  44 void use_X1() { X1 x1; }
  45
  46 // CHECK-DAG: @_ZTV2X1 = linkonce_odr unnamed_addr constant
  47 // CHECK-DAG: @_ZTV5testa ={{.*}} unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null
  48 // CHECK-DAG: @_ZTV5testc = linkonce_odr unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null
  49 // CHECK-DAG: @_ZTV5testb = linkonce_odr unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null
  50 // CHECK-DAG: @_ZTV5teste = linkonce_odr unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null
  51 // CHECK-DAG: @_ZTVN12_GLOBAL__N_15testgE = internal unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null