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/* { dg-do compile } */

/* { dg-options "-O2 -ftree-vectorize" } */

struct funny_match

{

  int this, other;

};

typedef struct rtx {

    int code;

} *rtx;

extern rtx recog_operand[];

extern int which_alternative;

extern int nalternatives;

int

constrain_operands (insn_code_num, strict)

     int insn_code_num;

     int strict;

{

  char *constraints[10];

  struct funny_match funny_match[10];

  register int c;

  int funny_match_index;

  which_alternative = 0;

  while (which_alternative < nalternatives)

    {

      register int opno;

      register char *p = constraints[opno];

      int lose = 0;

      funny_match_index = 0;

      while (*p && (c = *p++) != ',')

        funny_match[funny_match_index++].other = c - '0';

      if ((((recog_operand[opno])->code) == 12))

        lose = 1;

      if (!lose)

        {

          while (--funny_match_index >= 0)

            recog_operand[funny_match[funny_match_index].other]

                    = recog_operand[funny_match[funny_match_index].this];

          return 1;

        }

      which_alternative++;

    }

  if (strict == 0)

    return constrain_operands (insn_code_num, -1);

  return 0;

}