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/* Spurious uninitialized variable warnings.

   This one inspired by java/class.c:build_utf8_ref.  */

/* { dg-do compile } */

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

#include <stddef.h>

struct tree

{

    struct tree *car;

    struct tree *cdr;

    int type, data;

};

extern void *malloc(size_t);

#define INTEGER_T 1

#define PTR_T     2

#define APPEND(TREE, LAST, TYPE, VALUE)                         \

do {                                                            \

     struct tree *tmp = malloc (sizeof (struct tree));          \

     tmp->car = 0; tmp->cdr = 0; tmp->type = TYPE;                \

     tmp->data = VALUE;                                         \

     if (TREE->car)                                             \

         LAST->cdr = tmp;                                       \

     else                                                       \

         TREE->car = tmp;                                       \

     LAST = tmp;                                                \

} while(0)

struct tree *

make_something(int a, int b, int c)

{

    struct tree *rv;

    struct tree *field;

    rv = malloc (sizeof (struct tree));

    rv->car = 0;

    APPEND(rv, field, INTEGER_T, a);  /* { dg-bogus "field" "uninitialized variable warning" } */

    APPEND(rv, field, PTR_T, b);

    APPEND(rv, field, INTEGER_T, c);

    return rv;

}