1 // RUN: %clang_cc1 -std=c++1y %s -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s 2 3 struct A { 4 int n = 0; 5 const char *p; 6 char k = p[n]; 7 int f(); 8 int x = f(); 9 union { 10 char c; 11 double d = 1.0; 12 }; 13 }; 14 15 int f(); 16 17 union B { 18 int a; 19 int f(); 20 int b = f(); 21 }; 22 23 A a { .p = "foobar" }; 24 A b { 4, "bazquux", .x = 42, .c = 9 }; 25 A c { 1, 0, 'A', f(), { 3 } }; 26 27 // CHECK: @[[STR_A:.*]] = {{.*}} [7 x i8] c"foobar\00" 28 // CHECK: @a = global {{.*}} zeroinitializer 29 30 // @b has a constant initializer 31 // CHECK: @[[STR_B:.*]] = {{.*}} [8 x i8] c"bazquux\00" 32 // CHECK: @b = global {{.*}} i32 4, {{.*}} @[[STR_B]], {{.*}} i8 117, i32 42, {{.*}} i8 9 33 34 B x; 35 B y {}; 36 B z { 1 }; 37 // CHECK: @z = global {{.*}} { i32 1 } 38 39 // Brace initialization should initialize the first field even though it is 40 // unnamed. 41 union C { 42 struct { 43 int C::*memptr; 44 }; 45 }; 46 47 C n{}; 48 // CHECK: @n = global %union.C { %struct.anon { i64 -1 } }, align 8 49 50 // Initialization of 'a': 51 52 // CHECK: store i32 0, i32* getelementptr inbounds ({{.*}} @a, i32 0, i32 0) 53 // CHECK: store i8* {{.*}} @[[STR_A]]{{.*}}, i8** getelementptr inbounds ({{.*}} @a, i32 0, i32 1) 54 // CHECK: load i32, i32* getelementptr inbounds ({{.*}} @a, i32 0, i32 0) 55 // CHECK: load i8*, i8** getelementptr inbounds ({{.*}} @a, i32 0, i32 1) 56 // CHECK: getelementptr inbounds i8, i8* %{{.*}}, {{.*}} %{{.*}} 57 // CHECK: store i8 %{{.*}}, i8* getelementptr inbounds ({{.*}} @a, i32 0, i32 2) 58 // CHECK: call i32 @_ZN1A1fEv({{.*}} @a) 59 // CHECK: store i32 %{{.*}}, i32* getelementptr inbounds ({{.*}}, {{.*}}* @a, i32 0, i32 3) 60 // CHECK: store double 1.000000e+00, double* getelementptr inbounds ({{.*}} @a, i32 0, i32 4, i32 0) 61 62 // No dynamic initialization of 'b': 63 64 // CHECK-NOT: @b 65 66 // Initialization of 'c': 67 68 // CHECK: store i32 1, i32* getelementptr inbounds ({{.*}} @c, i32 0, i32 0) 69 // CHECK: store i8* null, i8** getelementptr inbounds ({{.*}} @c, i32 0, i32 1) 70 // CHECK-NOT: load 71 // CHECK: store i8 65, i8* getelementptr inbounds ({{.*}} @c, i32 0, i32 2) 72 // CHECK: call i32 @_Z1fv() 73 // CHECK: store i32 %{{.*}}, i32* getelementptr inbounds ({{.*}}, {{.*}}* @c, i32 0, i32 3) 74 // CHECK-NOT: C1Ev 75 // CHECK: store i8 3, i8* {{.*}} @c, i32 0, i32 4) 76 77 // CHECK: call void @_ZN1BC1Ev({{.*}} @x) 78 79 // CHECK: call i32 @_ZN1B1fEv({{.*}} @y) 80 // CHECK: store i32 %{{.*}}, i32* getelementptr inbounds ({{.*}} @y, i32 0, i32 0) 81
