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/* Uninitialized variable warning tests...

   Inspired by part of optabs.c:expand_binop.

   May be the same as uninit-1.c.  */

/* { dg-do compile } */

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

#include <limits.h>

void

add_bignums (int *out, int *x, int *y)

{

    int p, sum;

    int carry; /* { dg-bogus "carry" "uninitialized variable warning" } */

    p = 0;

    for (; *x; x++, y++, out++, p++)

    {

        if (p)

            sum = *x + *y + carry;

        else

            sum = *x + *y;

        if (sum < 0)

        {

            carry = 1;

            sum -= INT_MAX;

        }

        else

            carry = 0;

    }

}