c-strings.c revision b8409215523e5478b8b0aa9cdcd10038cf7651fe 
1// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
2
3// Should be 3 hello strings, two global (of different sizes), the rest are
4// shared.
5
6// CHECK: @align = global i8 [[ALIGN:[0-9]+]]
7// CHECK: @.str = private unnamed_addr constant [6 x i8] c"hello\00"
8// CHECK: @f1.x = internal global i8* getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 0)
9// CHECK: @f2.x = internal global [6 x i8] c"hello\00", align [[ALIGN]]
10// CHECK: @f3.x = internal global [8 x i8] c"hello\00\00\00", align [[ALIGN]]
11// CHECK: @f4.x = internal global %struct.s { i8* getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 0) }
12// CHECK: @x = global [3 x i8] c"ola", align [[ALIGN]]
13
14#if defined(__s390x__)
15unsigned char align = 2;
16#else
17unsigned char align = 1;
18#endif
19
20void bar(const char *);
21
22// CHECK: define void @f0()
23void f0() {
24  bar("hello");
25  // CHECK: call void @bar({{.*}} @.str
26}
27
28// CHECK: define void @f1()
29void f1() {
30  static char *x = "hello";
31  bar(x);
32  // CHECK: [[T1:%.*]] = load i8** @f1.x
33  // CHECK: call void @bar(i8* [[T1:%.*]])
34}
35
36// CHECK: define void @f2()
37void f2() {
38  static char x[] = "hello";
39  bar(x);
40  // CHECK: call void @bar({{.*}} @f2.x
41}
42
43// CHECK: define void @f3()
44void f3() {
45  static char x[8] = "hello";
46  bar(x);
47  // CHECK: call void @bar({{.*}} @f3.x
48}
49
50void gaz(void *);
51
52// CHECK: define void @f4()
53void f4() {
54  static struct s {
55    char *name;
56  } x = { "hello" };
57  gaz(&x);
58  // CHECK: call void @gaz({{.*}} @f4.x
59}
60
61char x[3] = "ola";
62
63