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/* Spurious uninit variable warnings, case 4.

/* Spurious uninit variable warnings, case 4.

   Simplified version of cppexp.c (cpp_parse_expr).

   Simplified version of cppexp.c (cpp_parse_expr).

   This one is really fragile, it gets it right if you take out case

   This one is really fragile, it gets it right if you take out case

   1, or if the structure is replaced by an int, or if the structure

   1, or if the structure is replaced by an int, or if the structure

   has fewer members (!) */

   has fewer members (!) */

/* { dg-do compile } */

/* { dg-do compile } */

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

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

extern void abort (void);

extern void abort (void);

struct operation {

struct operation {

    short op;

    short op;

    char rprio;

    char rprio;

    char flags;

    char flags;

    char unsignedp;

    char unsignedp;

    long value;

    long value;

};

};

extern struct operation cpp_lex (void);

extern struct operation cpp_lex (void);

void

void

cpp_parse_expr (void)

cpp_parse_expr (void)

{

{

  int rprio; /* { dg-bogus "rprio" "uninitialized variable warning PR19833" } */

  int rprio; /* { dg-bogus "rprio" "uninitialized variable warning PR19833" } */

  struct operation op;

  struct operation op;

  for (;;)

  for (;;)

    {

    {

      op = cpp_lex ();

      op = cpp_lex ();

      switch (op.op)

      switch (op.op)

        {

        {

        case 0:

        case 0:

          break;

          break;

        case 1:

        case 1:

          return;

          return;

        case 2:

        case 2:

          rprio = 1;

          rprio = 1;

          break;

          break;

        default:

        default:

          return;

          return;

        }

        }

      if (op.op == 0)

      if (op.op == 0)

        return;

        return;

      if (rprio != 1)

      if (rprio != 1)

        abort();

        abort();

    }

    }

}

}