gcc/testsuite/gcc.dg/sibcall-8.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -foptimize-sibling-calls" } */
   3
   4 typedef struct {
   5   int data[4];
   6 } arr16_t;
   7
   8 int result = 0;
   9
  10 void func2(int i, int j, arr16_t arr)
  11 {
  12   result = (arr.data[0] != 1
  13             || arr.data[1] != 2
  14             || arr.data[2] != 3
  15             || arr.data[3] != 4);
  16 }
  17
  18 void func1(int i, int j, int k, arr16_t a)
  19 {
  20   func2(i, j, a);
  21 }
  22
  23 int main(int argc, const char *argv[])
  24 {
  25   arr16_t arr = {{1, 2, 3, 4}};
  26
  27   func1(0, 0, 0, arr);
  28   return result;
  29 }
  30