gcc/testsuite/gcc.target/aarch64/asm-adder-clobber-lr.c

   1 extern void abort (void);
   2
   3 int
   4 adder (int a, int b)
   5 {
   6   int result;
   7   __asm__ ("add %w0,%w1,%w2" : "=r"(result) : "r"(a), "r"(b) : "x30");
   8   return result;
   9 }
  10
  11 int
  12 main (int argc, char** argv)
  13 {
  14   int i;
  15   int total = argc;
  16   for (i = 0; i < 20; i++)
  17     total = adder (total, i);
  18
  19   if (total != (190 + argc))
  20     abort ();
  21
  22   return 0;
  23 }