gcc/testsuite/gcc.target/aarch64/subsp.c

   1 /* { dg-options "-O" } */
   2
   3 int foo (void *);
   4
   5 int
   6 f1 (int *x, long y)
   7 {
   8   return foo (__builtin_alloca (y));
   9 }
  10
  11 int
  12 f2 (int *x, int y)
  13 {
  14   char a[y + 1][16];
  15   return foo (a);
  16 }
  17
  18 /* { dg-final { scan-assembler "sub\tsp, sp, x\[0-9\]*\n" } } */
  19 /* { dg-final { scan-assembler "sub\tsp, sp, x\[0-9\]*, sxtw 4\n" } } */