gcc/testsuite/gcc.target/arm/pac-8.c

   1 /* Testing return address signing.  */
   2 /* { dg-do run } */
   3 /* { dg-require-effective-target mbranch_protection_ok } */
   4 /* { dg-require-effective-target arm_pacbti_hw } */
   5 /* { dg-options "-march=armv8.1-m.main+pacbti+fp -mbranch-protection=pac-ret+leaf -mthumb -mfloat-abi=hard --save-temps -O0" } */
   6
   7 #include <stdarg.h>
   8 #include <stdlib.h>
   9
  10 int acc (int n, ...)
  11 {
  12     int sum = 0;
  13     va_list ptr;
  14
  15     va_start (ptr, n);
  16
  17     for (int i = 0; i < n; i++)
  18         sum += va_arg (ptr, int);
  19     va_end (ptr);
  20
  21     return sum;
  22 }
  23
  24 int main()
  25 {
  26   if (acc (3, 1, 2, 3) != 6)
  27     abort ();
  28
  29   return 0;
  30 }
  31
  32 /* { dg-final { scan-assembler-times "pac\tip, lr, sp" 2 } } */
  33 /* { dg-final { scan-assembler-times "aut\tip, lr, sp" 2 } } */
  34 /* { dg-final { scan-assembler-not "\tbti" } } */