gcc/testsuite/gcc.dg/pr41841.c

   1 /* PR tree-optimization/41841 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O -fwhole-program -fipa-cp" } */
   4
   5 typedef struct S *T;
   6 typedef struct { } *U;
   7 extern int f1 (void);
   8
   9 static void
  10 f3 (U x, int y)
  11 {
  12   T a = (T) x;
  13   y && f1 ();
  14 }
  15
  16 static void
  17 f2 (T x)
  18 {
  19   f3 ((U) x, 1);
  20 }
  21
  22 void *volatile a __attribute__((used)) = f2;