gcc/testsuite/gcc.target/s390/stack-clash-1.c

   1 /* Make sure a stack probe is emitted also for the remaining bytes
   2    after the loop probing the large chunk.  */
   3
   4 /* { dg-do compile } */
   5 /* { dg-options "-O2 -march=z9-ec -fstack-clash-protection" } */
   6
   7 void large_stack() {
   8   volatile int stack[8000];
   9   int i;
  10   for (i = 0; i < sizeof(stack) / sizeof(int); ++i)
  11     stack[i] = i;
  12 }
  13
  14 /* We use a compare for the stack probe.  There needs to be one inside
  15    a loop and another for the remaining bytes.  */
  16 /* { dg-final { scan-assembler-times "cg\t" 2 { target s390_zarch } } } */
  17 /* { dg-final { scan-assembler-times "c\t" 2 { target { ! s390_zarch } } } } */