1  /* PR target/27531 */
       2  /* This test case stressed the register allocator into reloading a LABEL_REF
       3     on sparc, but didn't add a REG_LABEL note, ultimately causing the assembly
       4     output to reference a label that had been eliminated.  */
       5  /* { dg-do link } */
       6  /* { dg-options "-O2" } */
       7  /* { dg-skip-if "requires io" { freestanding } }  */
       8  
       9  typedef struct _IO_FILE FILE;
      10  char const *RCSname;
      11  void *Locks;
      12  void * Head;
      13  struct Revpairs{
      14      struct Revpairs * rnext;
      15  };
      16  extern char *strchr(const char *s, int c);
      17  extern int fprintf(FILE *, const char *format, ...);
      18  static void getrevpairs (char*);
      19  static int branchflag;
      20  static struct Revpairs *revlist, *Revlst;
      21  
      22  extern int warn(const char *msg, char *argv);
      23  extern int error(const char *msg, int c, char *argv);
      24  extern int recentdate(void *foo, void *bar);
      25  
      26  char *t;
      27  int main (int argc, char **argv)
      28  {
      29      FILE *out;
      30      char *a, **newargv;
      31      void *currdate;
      32      int descflag, selectflag;
      33      int onlylockflag;
      34      int onlyRCSflag;
      35      int shownames;
      36      descflag = selectflag = shownames = 1;
      37      onlylockflag = onlyRCSflag = 0;
      38      while (a = *++argv, 0<--argc)
      39      {
      40          switch (*a++)
      41          {
      42              case 'L':
      43                  onlylockflag = 1;
      44              case 'N':
      45                  shownames = 0;
      46              case 'R':
      47                  t = a;
      48              case 'b':
      49                  branchflag = 1;
      50              case 'r':
      51                  getrevpairs(a);
      52          }
      53          if (onlylockflag && !Locks)
      54              fprintf(out, "%s\n", RCSname);
      55          if (shownames) 
      56              while( currdate)
      57                  recentdate(Head, currdate);
      58      }
      59  }
      60  void getrevpairs(char *argv)
      61  {
      62      char c;
      63      struct Revpairs * nextrevpair;
      64      int separator;
      65      if (strchr(argv,':'))
      66          separator = ':';
      67      else
      68      {
      69          if (strchr(argv,'-') )
      70              warn("`-' is obsolete in `-r%s'; use `:' instead", argv);
      71          separator = '-';
      72      }
      73      for (;;)
      74      {
      75          nextrevpair->rnext = revlist;
      76          for (;; c = *++argv)
      77          {
      78              switch (c)
      79              {
      80                  default:
      81                      continue;
      82                  case ' ':
      83                  case '\t':
      84                  case '\n':
      85                      break;
      86                  case ':':
      87                  case '-':
      88                      if (c == separator)
      89                          continue;
      90              }
      91              break;
      92          }
      93          if (!c)
      94              break;
      95          error("missing `,' near `%c%s'", c, argv+1);
      96      }
      97  }
      98  
      99  int warn(const char *msg, char *argv)
     100  {
     101    t = 0;  /* this function needs side-effects.  */
     102    return 0;
     103  }
     104  
     105  int error(const char *msg, int c, char *argv)
     106  {
     107    t = 0; /* this function needs side-effects.  */
     108    return 0;
     109  }
     110  
     111  int recentdate(void *foo, void *bar)
     112  {
     113    t = 0; /* this function needs side-effects.  */
     114    return 0;
     115  }
     116