xref: /minix3/external/bsd/llvm/dist/clang/test/CodeGenCXX/const-init-cxx1y.cpp (revision f4a2713ac843a11c696ec80c0a5e3e5d80b4d338)
1*f4a2713aSLionel Sambuc // RUN: not %clang_cc1 -verify -triple x86_64-apple-darwin -emit-llvm -o - %s -std=c++1y | FileCheck %s
2*f4a2713aSLionel Sambuc 
3*f4a2713aSLionel Sambuc struct A {
4*f4a2713aSLionel Sambuc   constexpr A() : n(1) {}
5*f4a2713aSLionel Sambuc   ~A();
6*f4a2713aSLionel Sambuc   int n;
7*f4a2713aSLionel Sambuc };
8*f4a2713aSLionel Sambuc struct B : A {
9*f4a2713aSLionel Sambuc   A a[3];
10*f4a2713aSLionel Sambuc   constexpr B() {
11*f4a2713aSLionel Sambuc     ++a[0].n;
12*f4a2713aSLionel Sambuc     a[1].n += 2;
13*f4a2713aSLionel Sambuc     a[2].n = n + a[1].n;
14*f4a2713aSLionel Sambuc   }
15*f4a2713aSLionel Sambuc };
16*f4a2713aSLionel Sambuc B b;
17*f4a2713aSLionel Sambuc 
18*f4a2713aSLionel Sambuc // CHECK: @b = global {{.*}} i32 1, {{.*}} { i32 2 }, {{.*}} { i32 3 }, {{.*}} { i32 4 }
19*f4a2713aSLionel Sambuc // CHECK-NOT: _ZN1BC
20*f4a2713aSLionel Sambuc 
21*f4a2713aSLionel Sambuc namespace ModifyStaticTemporary {
22*f4a2713aSLionel Sambuc   struct A { int &&temporary; int x; };
23*f4a2713aSLionel Sambuc   constexpr int f(int &r) { r *= 9; return r - 12; }
24*f4a2713aSLionel Sambuc   A a = { 6, f(a.temporary) };
25*f4a2713aSLionel Sambuc   // CHECK: @_ZGRN21ModifyStaticTemporary1aE = private global i32 54
26*f4a2713aSLionel Sambuc   // CHECK: @_ZN21ModifyStaticTemporary1aE = global {{.*}} i32* @_ZGRN21ModifyStaticTemporary1aE, i32 42
27*f4a2713aSLionel Sambuc 
28*f4a2713aSLionel Sambuc   A b = { 7, ++b.temporary };
29*f4a2713aSLionel Sambuc   // CHECK: @_ZGRN21ModifyStaticTemporary1bE = private global i32 8
30*f4a2713aSLionel Sambuc   // CHECK: @_ZN21ModifyStaticTemporary1bE = global {{.*}} i32* @_ZGRN21ModifyStaticTemporary1bE, i32 8
31*f4a2713aSLionel Sambuc 
32*f4a2713aSLionel Sambuc   // Can't emit all of 'c' as a constant here, so emit the initial value of
33*f4a2713aSLionel Sambuc   // 'c.temporary', not the value as modified by the partial evaluation within
34*f4a2713aSLionel Sambuc   // the initialization of 'c.x'.
35*f4a2713aSLionel Sambuc   A c = { 10, (++c.temporary, b.x) };
36*f4a2713aSLionel Sambuc   // CHECK: @_ZGRN21ModifyStaticTemporary1cE = private global i32 10
37*f4a2713aSLionel Sambuc   // CHECK: @_ZN21ModifyStaticTemporary1cE = global {{.*}} zeroinitializer
38*f4a2713aSLionel Sambuc }
39*f4a2713aSLionel Sambuc 
40*f4a2713aSLionel Sambuc // CHECK: __cxa_atexit({{.*}} @_ZN1BD1Ev {{.*}} @b
41*f4a2713aSLionel Sambuc 
42*f4a2713aSLionel Sambuc // CHECK: define
43*f4a2713aSLionel Sambuc // CHECK-NOT: @_ZGRN21ModifyStaticTemporary1cE
44*f4a2713aSLionel Sambuc // CHECK: store {{.*}} @_ZGRN21ModifyStaticTemporary1cE, {{.*}} @_ZN21ModifyStaticTemporary1cE
45*f4a2713aSLionel Sambuc // CHECK: add
46*f4a2713aSLionel Sambuc // CHECK: store
47*f4a2713aSLionel Sambuc // CHECK: load {{.*}} @_ZN21ModifyStaticTemporary1bE
48*f4a2713aSLionel Sambuc // CHECK: store {{.*}} @_ZN21ModifyStaticTemporary1cE
49