gcc/testsuite/gcc.dg/pr27531-1.c

   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  70             warn("`-' is obsolete in `-r%s'; use `:' instead", argv);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