test/CodeGenCXX/default-arg-temps.cpp

   1 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 | FileCheck %s
   2
   3 struct T {
   4   T();
   5   ~T();
   6 };
   7
   8 void f(const T& t = T());
   9
  10 class X { // ...
  11 public:
  12         X();
  13         X(const X&, const T& t = T());
  14 };
  15
  16 // CHECK: define void @_Z1gv()
  17 void g() {
  18   // CHECK:      call void @_ZN1TC1Ev([[T:%.*]]* [[AGG1:%.*]])
  19   // CHECK-NEXT: call void @_Z1fRK1T([[T]]* [[AGG1]])
  20   // CHECK-NEXT: call void @_ZN1TD1Ev([[T]]* [[AGG1]])
  21   f();
  22
  23   // CHECK-NEXT: call void @_ZN1TC1Ev([[T:%.*]]* [[AGG2:%.*]])
  24   // CHECK-NEXT: call void @_Z1fRK1T([[T]]* [[AGG2]])
  25   // CHECK-NEXT: call void @_ZN1TD1Ev([[T]]* [[AGG2]])
  26   f();
  27
  28   // CHECK-NEXT: call void @_ZN1XC1Ev(
  29   X a;
  30
  31   // CHECK-NEXT: call void @_ZN1TC1Ev(
  32   // CHECK-NEXT: call void @_ZN1XC1ERKS_RK1T(
  33   // CHECK-NEXT: call void @_ZN1TD1Ev(
  34   X b(a);
  35
  36   // CHECK-NEXT: call void @_ZN1TC1Ev(
  37   // CHECK-NEXT: call void @_ZN1XC1ERKS_RK1T(
  38   // CHECK-NEXT: call void @_ZN1TD1Ev(
  39   X c = a;
  40 }
  41
  42
  43 class obj{ int a; float b; double d; };
  44 // CHECK: define void @_Z1hv()
  45 void h() {
  46   // CHECK: call void @llvm.memset.p0i8.i64(
  47   obj o = obj();
  48 }
  49
  50 // PR7028 - mostly this shouldn't crash
  51 namespace test1 {
  52   struct A { A(); };
  53   struct B { B(); ~B(); };
  54
  55   struct C {
  56     C(const B &file = B());
  57   };
  58   C::C(const B &file) {}
  59
  60   struct D {
  61     C c;
  62     A a;
  63
  64     // CHECK: define linkonce_odr void @_ZN5test11DC2Ev(%"struct.test1::D"* %this) unnamed_addr
  65     // CHECK:      call void @_ZN5test11BC1Ev(
  66     // CHECK-NEXT: call void @_ZN5test11CC1ERKNS_1BE(
  67     // CHECK-NEXT: call void @_ZN5test11BD1Ev(
  68     // CHECK:      call void @_ZN5test11AC1Ev(
  69     D() : c(), a() {}
  70   };
  71
  72   D d;
  73 }