gcc/testsuite/gcc.dg/guality/pr54200.c

   1 /* PR tree-optimization/54200 */
   2 /* { dg-do run } */
   3 /* { dg-options "-g -fno-var-tracking-assignments -fno-tree-coalesce-vars" } */
   4
   5 int o __attribute__((used));
   6
   7 void bar (void) { o = 2; }
   8
   9 int __attribute__((noinline,noclone))
  10 foo (int z, int x, int b)
  11 {
  12   if (x == 1)
  13     {
  14       bar ();
  15       return z;
  16     }
  17   else
  18     {
  19       int a = (x + z) + b;
  20       return a; /* { dg-final { gdb-test 20 "z" "3" } } */
  21     }
  22 }
  23
  24 int main ()
  25 {
  26   foo (3, 2, 1);
  27   return 0;
  28 }