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/* Positive test for uninitialized variables.  */

/* { dg-do compile } */

/* { dg-options "-O -Wuninitialized" } */

int sink;

void f1(int parm)       /* { dg-bogus "uninitialized" "parameter" } */

{

  sink = parm;          /* { dg-bogus "uninitialized" "parameter" } */

}

void f2(void)

{

  int x;

  sink = x;             /* { dg-warning "is used" "unconditional" } */

}

void f3(int p)

{

  int x;

  if (p)

    x = p;

  sink = x;            /* { dg-warning "may be used" "conditional" } */

}

void f4(int p)

{

  int x;                /* { dg-bogus "uninitialized" "easy if" } */

  if (p)

    x = 1;

  else

    x = 2;

  sink = x;

}

void f5(void)

{

  int x, i;             /* { dg-bogus "uninitialized" "easy loop" } */

  for (i = 0; i < 10; ++i)

    x = 1;

  sink = x;

}