gcc/testsuite/gcc.dg/pr84739.c

   1 /* PR tree-optimization/84739 */
   2 /* { dg-do compile } */
   3 /* { dg-require-weak "" } */
   4 /* { dg-options "-O2" } */
   5
   6 static void baz (void) __attribute__((weakref("bar"))); /* { dg-warning "alias between functions of incompatible types" } */
   7
   8 int
   9 foo (int x, int y)
  10 {
  11   if (x)
  12     y = 0;
  13   if (y)
  14     goto lab;
  15   y = 0;
  16 lab:
  17   return y;
  18 }
  19
  20 void
  21 bar (int x, int y)      /* { dg-message "aliased declaration here" } */
  22 {
  23   y = foo (x, y);
  24   if (y != 0)
  25     baz ();
  26 }