gcc-4.9/gcc/testsuite/c-c++-common/uninit-17.c


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/* { dg-do compile } */
/* { dg-options "-O2 -Wuninitialized -fno-ivopts" } */

inline int foo(int x)
{
  return x;
}
static void bar(int a, int *ptr)
{
  do
  {
    int b;   /* { dg-message "declared" } */
    if (b < 40) {
      ptr[0] = b; /* { dg-warning "may be used uninitialized" } */
    }
    b += 1;
    ptr++;
  }
  while (--a != 0);
}
void foobar(int a, int *ptr)
{
  bar(foo(a), ptr);
}