This second patch makes genoutput.c use the new get_pattern_stats function,
and adds the extra field to insn_data.

Bootstrapped & regression-tested on x86_64-linux-gnu.  OK to install?

Richard


gcc/
        * recog.h (insn_data_d): Add n_generator_args.
        * genoutput.c (data): Likewise.
        (output_insn_data): Print it.
        (max_opno, num_dups): Delete.
        (scan_operands): Just fill in "d->operand[...]".
        (gen_insn, gen_peephole, gen_expand, gen_split): Use get_pattern_stats.

Index: gcc/recog.h
===================================================================
--- gcc/recog.h 2011-03-31 17:09:32.000000000 +0100
+++ gcc/recog.h 2011-03-31 17:10:38.000000000 +0100
@@ -302,6 +302,7 @@ struct insn_data_d
   const insn_gen_fn genfun;
   const struct insn_operand_data *const operand;
 
+  const char n_generator_args;
   const char n_operands;
   const char n_dups;
   const char n_alternatives;
Index: gcc/genoutput.c
===================================================================
--- gcc/genoutput.c     2011-03-31 17:09:32.000000000 +0100
+++ gcc/genoutput.c     2011-03-31 17:11:47.000000000 +0100
@@ -162,6 +162,7 @@ struct data
   int index_number;
   const char *filename;
   int lineno;
+  int n_generator_args;                /* Number of arguments passed to 
generator */
   int n_operands;              /* Number of operands this insn recognizes */
   int n_dups;                  /* Number times match_dup appears in pattern */
   int n_alternatives;          /* Number of alternatives in each constraint */
@@ -402,6 +403,7 @@ output_insn_data (void)
        printf ("    0,\n");
 
       printf ("    &operand_data[%d],\n", d->operand_number);
+      printf ("    %d,\n", d->n_generator_args);
       printf ("    %d,\n", d->n_operands);
       printf ("    %d,\n", d->n_dups);
       printf ("    %d,\n", d->n_alternatives);
@@ -426,16 +428,11 @@ output_get_insn_name (void)
 }
 
 
-/* Stores in max_opno the largest operand number present in `part', if
-   that is larger than the previous value of max_opno, and the rest of
-   the operand data into `d->operand[i]'.
+/* Stores the operand data into `d->operand[i]'.
 
    THIS_ADDRESS_P is nonzero if the containing rtx was an ADDRESS.
    THIS_STRICT_LOW is nonzero if the containing rtx was a STRICT_LOW_PART.  */
 
-static int max_opno;
-static int num_dups;
-
 static void
 scan_operands (struct data *d, rtx part, int this_address_p,
               int this_strict_low)
@@ -451,9 +448,7 @@ scan_operands (struct data *d, rtx part,
     {
     case MATCH_OPERAND:
       opno = XINT (part, 0);
-      if (opno > max_opno)
-       max_opno = opno;
-      if (max_opno >= MAX_MAX_OPERANDS)
+      if (opno >= MAX_MAX_OPERANDS)
        {
          error_with_line (d->lineno, "maximum number of operands exceeded");
          return;
@@ -474,9 +469,7 @@ scan_operands (struct data *d, rtx part,
 
     case MATCH_SCRATCH:
       opno = XINT (part, 0);
-      if (opno > max_opno)
-       max_opno = opno;
-      if (max_opno >= MAX_MAX_OPERANDS)
+      if (opno >= MAX_MAX_OPERANDS)
        {
          error_with_line (d->lineno, "maximum number of operands exceeded");
          return;
@@ -498,9 +491,7 @@ scan_operands (struct data *d, rtx part,
     case MATCH_OPERATOR:
     case MATCH_PARALLEL:
       opno = XINT (part, 0);
-      if (opno > max_opno)
-       max_opno = opno;
-      if (max_opno >= MAX_MAX_OPERANDS)
+      if (opno >= MAX_MAX_OPERANDS)
        {
          error_with_line (d->lineno, "maximum number of operands exceeded");
          return;
@@ -519,12 +510,6 @@ scan_operands (struct data *d, rtx part,
        scan_operands (d, XVECEXP (part, 2, i), 0, 0);
       return;
 
-    case MATCH_DUP:
-    case MATCH_OP_DUP:
-    case MATCH_PAR_DUP:
-      ++num_dups;
-      break;
-
     case ADDRESS:
       scan_operands (d, XEXP (part, 0), 1, 0);
       return;
@@ -839,6 +824,7 @@ validate_optab_operands (struct data *d)
 static void
 gen_insn (rtx insn, int lineno)
 {
+  struct pattern_stats stats;
   struct data *d = XNEW (struct data);
   int i;
 
@@ -857,15 +843,15 @@ gen_insn (rtx insn, int lineno)
   *idata_end = d;
   idata_end = &d->next;
 
-  max_opno = -1;
-  num_dups = 0;
   memset (d->operand, 0, sizeof (d->operand));
 
   for (i = 0; i < XVECLEN (insn, 1); i++)
     scan_operands (d, XVECEXP (insn, 1, i), 0, 0);
 
-  d->n_operands = max_opno + 1;
-  d->n_dups = num_dups;
+  get_pattern_stats (&stats, XVEC (insn, 1));
+  d->n_generator_args = stats.num_generator_args;
+  d->n_operands = stats.num_insn_operands;
+  d->n_dups = stats.num_dups;
 
 #ifndef USE_MD_CONSTRAINTS
   check_constraint_len ();
@@ -884,6 +870,7 @@ gen_insn (rtx insn, int lineno)
 static void
 gen_peephole (rtx peep, int lineno)
 {
+  struct pattern_stats stats;
   struct data *d = XNEW (struct data);
   int i;
 
@@ -899,8 +886,6 @@ gen_peephole (rtx peep, int lineno)
   *idata_end = d;
   idata_end = &d->next;
 
-  max_opno = -1;
-  num_dups = 0;
   memset (d->operand, 0, sizeof (d->operand));
 
   /* Get the number of operands by scanning all the patterns of the
@@ -909,7 +894,9 @@ gen_peephole (rtx peep, int lineno)
   for (i = 0; i < XVECLEN (peep, 0); i++)
     scan_operands (d, XVECEXP (peep, 0, i), 0, 0);
 
-  d->n_operands = max_opno + 1;
+  get_pattern_stats (&stats, XVEC (peep, 0));
+  d->n_generator_args = 0;
+  d->n_operands = stats.num_insn_operands;
   d->n_dups = 0;
 
   validate_insn_alternatives (d);
@@ -923,6 +910,7 @@ gen_peephole (rtx peep, int lineno)
 static void
 gen_expand (rtx insn, int lineno)
 {
+  struct pattern_stats stats;
   struct data *d = XNEW (struct data);
   int i;
 
@@ -941,8 +929,6 @@ gen_expand (rtx insn, int lineno)
   *idata_end = d;
   idata_end = &d->next;
 
-  max_opno = -1;
-  num_dups = 0;
   memset (d->operand, 0, sizeof (d->operand));
 
   /* Scan the operands to get the specified predicates and modes,
@@ -952,8 +938,10 @@ gen_expand (rtx insn, int lineno)
     for (i = 0; i < XVECLEN (insn, 1); i++)
       scan_operands (d, XVECEXP (insn, 1, i), 0, 0);
 
-  d->n_operands = max_opno + 1;
-  d->n_dups = num_dups;
+  get_pattern_stats (&stats, XVEC (insn, 1));
+  d->n_generator_args = stats.num_generator_args;
+  d->n_operands = stats.num_insn_operands;
+  d->n_dups = stats.num_dups;
   d->template_code = 0;
   d->output_format = INSN_OUTPUT_FORMAT_NONE;
 
@@ -968,6 +956,7 @@ gen_expand (rtx insn, int lineno)
 static void
 gen_split (rtx split, int lineno)
 {
+  struct pattern_stats stats;
   struct data *d = XNEW (struct data);
   int i;
 
@@ -983,8 +972,6 @@ gen_split (rtx split, int lineno)
   *idata_end = d;
   idata_end = &d->next;
 
-  max_opno = -1;
-  num_dups = 0;
   memset (d->operand, 0, sizeof (d->operand));
 
   /* Get the number of operands by scanning all the patterns of the
@@ -993,7 +980,9 @@ gen_split (rtx split, int lineno)
   for (i = 0; i < XVECLEN (split, 0); i++)
     scan_operands (d, XVECEXP (split, 0, i), 0, 0);
 
-  d->n_operands = max_opno + 1;
+  get_pattern_stats (&stats, XVEC (split, 0));
+  d->n_generator_args = 0;
+  d->n_operands = stats.num_insn_operands;
   d->n_dups = 0;
   d->n_alternatives = 0;
   d->template_code = 0;

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