clang/test/CodeGen/stmtexpr-init.c

   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
   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
  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 }