gcc/testsuite/c-c++-common/uninit-17.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -Wuninitialized -fno-ivopts" } */
   3
   4 inline int foo(int x)
   5 {
   6   return x;
   7 }
   8 static void bar(int a, int *ptr)
   9 {
  10   do
  11   {
  12     int b;   /* { dg-message "declared" } */
  13     if (b < 40) {
  14       ptr[0] = b;
  15     }
  16     b += 1; /* { dg-warning "may be used uninitialized" } */
  17     ptr++;
  18   }
  19   while (--a != 0);
  20 }
  21 void foobar(int a, int *ptr)
  22 {
  23   bar(foo(a), ptr);
  24 }
  25