1 // RUN: %clang_cc1 -verify -triple x86_64-apple-darwin -emit-llvm -o - %s -std=c++1y | FileCheck %s
2 // expected-no-diagnostics
3 
4 struct A {
AA5   constexpr A() : n(1) {}
6   ~A();
7   int n;
8 };
9 struct B : A {
10   A a[3];
BB11   constexpr B() {
12     ++a[0].n;
13     a[1].n += 2;
14     a[2].n = n + a[1].n;
15   }
16 };
17 B b;
18 
19 // CHECK: @b ={{.*}} global {{.*}} i32 1, {{.*}} { i32 2 }, {{.*}} { i32 3 }, {{.*}} { i32 4 }
20 // CHECK-NOT: _ZN1BC
21 
22 namespace ModifyStaticTemporary {
23   struct A { int &&temporary; int x; };
f(int & r)24   constexpr int f(int &r) { r *= 9; return r - 12; }
25   A a = { 6, f(a.temporary) };
26   // CHECK: @_ZGRN21ModifyStaticTemporary1aE_ = internal global i32 54
27   // CHECK: @_ZN21ModifyStaticTemporary1aE ={{.*}} global {{.*}} i32* @_ZGRN21ModifyStaticTemporary1aE_, i32 42
28 
29   A b = { 7, ++b.temporary };
30   // CHECK: @_ZGRN21ModifyStaticTemporary1bE_ = internal global i32 8
31   // CHECK: @_ZN21ModifyStaticTemporary1bE ={{.*}} global {{.*}} i32* @_ZGRN21ModifyStaticTemporary1bE_, i32 8
32 
33   // Can't emit all of 'c' as a constant here, so emit the initial value of
34   // 'c.temporary', not the value as modified by the partial evaluation within
35   // the initialization of 'c.x'.
36   A c = { 10, (++c.temporary, b.x) };
37   // CHECK: @_ZGRN21ModifyStaticTemporary1cE_ = internal global i32 10
38   // CHECK: @_ZN21ModifyStaticTemporary1cE ={{.*}} global {{.*}} zeroinitializer
39 }
40 
41 // CHECK: @_ZGRN28VariableTemplateWithConstRef1iIvEE_ = linkonce_odr constant i32 5, align 4
42 // CHECK: @_ZN28VariableTemplateWithConstRef3useE ={{.*}} constant i32* @_ZGRN28VariableTemplateWithConstRef1iIvEE_
43 namespace VariableTemplateWithConstRef {
44   template <typename T>
45   const int &i = 5;
46   const int &use = i<void>;
47 }
48 
49 // CHECK: @_ZGRN34HiddenVariableTemplateWithConstRef1iIvEE_ = linkonce_odr hidden constant i32 5, align 4
50 // CHECK: @_ZN34HiddenVariableTemplateWithConstRef3useE ={{.*}} constant i32* @_ZGRN34HiddenVariableTemplateWithConstRef1iIvEE_
51 namespace HiddenVariableTemplateWithConstRef {
52   template <typename T>
53   __attribute__((visibility("hidden"))) const int &i = 5;
54   const int &use = i<void>;
55 }
56 
57 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE1_ = linkonce_odr constant i32 1
58 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE0_ = linkonce_odr global {{.*}} { i32* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE1_ }
59 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE3_ = linkonce_odr constant i32 2
60 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE2_ = linkonce_odr global {{.*}} { i32* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE3_ }
61 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE5_ = linkonce_odr constant i32 3
62 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE4_ = linkonce_odr global {{.*}} { i32* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE5_ }
63 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE7_ = linkonce_odr constant i32 4
64 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE6_ = linkonce_odr global {{.*}} { i32* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE7_ }
65 // CHECK: @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE_ = linkonce_odr global %"struct.VariableTemplateWithPack::S" { {{.*}}* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE0_, {{.*}}* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE2_, {{.*}}* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE4_, {{.*}}* @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE6_ }
66 // CHECK: @_ZN24VariableTemplateWithPack1pE ={{.*}} global {{.*}} @_ZGRN24VariableTemplateWithPack1sIJLi1ELi2ELi3ELi4EEEE_
67 namespace VariableTemplateWithPack {
68   struct A {
69     const int &r;
70   };
71   struct S {
72     A &&a, &&b, &&c, &&d;
73   };
74   template <int... N>
75   S &&s = {A{N}...};
76   S *p = &s<1, 2, 3, 4>;
77 }
78 
79 // CHECK: __cxa_atexit({{.*}} @_ZN1BD1Ev {{.*}} @b
80 
81 // CHECK: define
82 // CHECK-NOT: @_ZGRN21ModifyStaticTemporary1cE_
83 // CHECK: store {{.*}} @_ZGRN21ModifyStaticTemporary1cE_, {{.*}} @_ZN21ModifyStaticTemporary1cE
84 // CHECK: add
85 // CHECK: store
86 // CHECK: load {{.*}} @_ZN21ModifyStaticTemporary1bE
87 // CHECK: store {{.*}} @_ZN21ModifyStaticTemporary1cE
88