xref: /llvm-project/clang/test/CodeGen/stmtexpr-init.c (revision 657e954939c8a7d33c40291ef3214333a1e2ca5b)
1 // RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
2 
3 void escape(const void *);
4 
5 // CHECK-DAG: internal global i8 99
6 
T1(void)7 void T1(void) {
8   const char *x[1] = {({static char _x = 99; &_x; })};
9   escape(x);
10 }
11 
12 struct sized_array {
13   int count;
14   int entries[];
15 };
16 
17 #define N_ARGS(...) (sizeof((int[]){__VA_ARGS__}) / sizeof(int))
18 
19 #define ARRAY_PTR(...) ({                                                    \
20   static const struct sized_array _a = {N_ARGS(__VA_ARGS__), {__VA_ARGS__}}; \
21   &_a;                                                                       \
22 })
23 
24 struct outer {
25   const struct sized_array *a;
26 };
27 
T2(void)28 void T2(void) {
29   // CHECK-DAG: internal constant { i32, [2 x i32] } { i32 2, [2 x i32] [i32 50, i32 60] }
30   const struct sized_array *A = ARRAY_PTR(50, 60);
31 
32   // CHECK-DAG: internal constant { i32, [3 x i32] } { i32 3, [3 x i32] [i32 10, i32 20, i32 30] }
33   struct outer X = {ARRAY_PTR(10, 20, 30)};
34 
35   escape(A);
36   escape(&X);
37 }
38