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      1 // RUN: %clang_cc1 -fobjc-gc -emit-llvm -triple x86_64-apple-darwin10.0.0 -fobjc-runtime=macosx-fragile-10.5 -o - %s | FileCheck %s -check-prefix=CHECK-OBJ
      2 // RUN: %clang_cc1 -x c++    -emit-llvm -triple x86_64-apple-darwin10.0.0                                    -o - %s | FileCheck %s -check-prefix=CHECK-CPP
      3 #ifdef __OBJC__
      4 struct A { 
      5   A &operator=(const A&);
      6   A &operator=(A&);
      7 };
      8 
      9 struct B {
     10   B &operator=(B&);
     11 };
     12 
     13 struct C {
     14   virtual C& operator=(const C&);
     15 };
     16 
     17 struct POD {
     18   id myobjc;
     19   int array[3][4];
     20 };
     21 
     22 struct CopyByValue {
     23   CopyByValue(const CopyByValue&);
     24   CopyByValue &operator=(CopyByValue);
     25 };
     26 
     27 struct D : A, B, virtual C { 
     28   int scalar;
     29   int scalar_array[2][3];
     30   B class_member;
     31   C class_member_array[2][3];
     32   POD pod_array[2][3];
     33 
     34   union {
     35     int x;
     36     float f[3];
     37   };
     38 
     39   CopyByValue by_value;
     40 };
     41 
     42 void test_D(D d1, D d2) {
     43   d1 = d2;
     44 }
     45 
     46 // CHECK-OBJ-LABEL: define linkonce_odr dereferenceable({{[0-9]+}}) %struct.D* @_ZN1DaSERS_
     47 // CHECK-OBJ: {{call.*_ZN1AaSERS_}}
     48 // CHECK-OBJ: {{call.*_ZN1BaSERS_}}
     49 // CHECK-OBJ: {{call.*_ZN1CaSERKS_}}
     50 // CHECK-OBJ: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 24}}
     51 // CHECK-OBJ: {{call.*_ZN1BaSERS_}}
     52 // CHECK-OBJ: br
     53 // CHECK-OBJ: {{call.*_ZN1CaSERKS_}}
     54 // CHECK-OBJ: {{call.*@objc_memmove_collectable}}
     55 // CHECK-OBJ: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 12}}
     56 // CHECK-OBJ: call void @_ZN11CopyByValueC1ERKS_
     57 // CHECK-OBJ: {{call.*_ZN11CopyByValueaSES_}}
     58 // CHECK-OBJ: ret
     59 #endif
     60 
     61 namespace PR13329 {
     62 #ifndef __OBJC__
     63   typedef void* id;
     64 #endif
     65   struct POD {
     66     id    i;
     67     short s;
     68   };
     69   
     70   struct NonPOD {
     71     id    i;
     72     short s;
     73     
     74     NonPOD();
     75   };
     76   
     77   struct DerivedNonPOD: NonPOD {
     78     char  c;
     79   };
     80   
     81   struct DerivedPOD: POD {
     82     char  c;
     83   };
     84   
     85   void testPOD() {
     86     POD a;
     87     POD b;
     88     // CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 16
     89     // CHECK-CPP: @llvm.memcpy{{.*}}i64 16
     90     b = a;
     91   }
     92   
     93   void testNonPOD() {
     94     NonPOD a;
     95     NonPOD b;
     96     // CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 10
     97     // CHECK-CPP: @llvm.memcpy{{.*}}i64 10
     98     b = a;
     99   }
    100   
    101   void testDerivedNonPOD() {
    102     DerivedNonPOD a;
    103     NonPOD        b;
    104     DerivedNonPOD c;
    105     // CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 10
    106     // CHECK-CPP: @llvm.memcpy{{.*}}i64 10
    107     (NonPOD&) a = b;
    108     // CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 11
    109     // CHECK-CPP: @llvm.memcpy{{.*}}i64 11
    110     a = c;
    111   };
    112   
    113   void testDerivedPOD() {
    114     DerivedPOD a;
    115     POD        b;
    116     DerivedPOD c;
    117     // CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 16
    118     // CHECK-CPP: @llvm.memcpy{{.*}}i64 16
    119     (POD&) a = b;
    120     // CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 17
    121     // CHECK-CPP: @llvm.memcpy{{.*}}i64 17
    122     a = c;
    123   };
    124 }
    125