@@ -1280,6 +1280,231 @@ endian = %d.\n",
return PC_OK;
}
+/* Convert a vector type into a mode string. */
+static void
+complete_vector_type (typeinfo *typeptr, char *buf, int *bufi)
+{
+ if (typeptr->isbool)
+ buf[(*bufi)++] = 'b';
+ buf[(*bufi)++] = 'v';
+ if (typeptr->ispixel)
+ {
+ memcpy (&buf[*bufi], "p8hi", 4);
+ *bufi += 4;
+ }
+ else
+ {
+ switch (typeptr->base)
+ {
+ case BT_CHAR:
+ memcpy (&buf[*bufi], "16qi", 4);
+ *bufi += 4;
+ break;
+ case BT_SHORT:
+ memcpy (&buf[*bufi], "8hi", 3);
+ *bufi += 3;
+ break;
+ case BT_INT:
+ memcpy (&buf[*bufi], "4si", 3);
+ *bufi += 3;
+ break;
+ case BT_LONGLONG:
+ memcpy (&buf[*bufi], "2di", 3);
+ *bufi += 3;
+ break;
+ case BT_FLOAT:
+ memcpy (&buf[*bufi], "4sf", 3);
+ *bufi += 3;
+ break;
+ case BT_DOUBLE:
+ memcpy (&buf[*bufi], "2df", 3);
+ *bufi += 3;
+ break;
+ case BT_INT128:
+ memcpy (&buf[*bufi], "1ti", 3);
+ *bufi += 3;
+ break;
+ case BT_FLOAT128:
+ memcpy (&buf[*bufi], "1tf", 3);
+ *bufi += 3;
+ break;
+ case BT_VPAIR:
+ memcpy (&buf[*bufi], "1poi", 4);
+ *bufi += 4;
+ break;
+ case BT_VQUAD:
+ memcpy (&buf[*bufi], "1pxi", 4);
+ *bufi += 4;
+ break;
+ default:
+ (*diag) ("unhandled basetype %d.\n", typeptr->base);
+ exit (1);
+ }
+ }
+}
+
+/* Convert a base type into a mode string. */
+static void
+complete_base_type (typeinfo *typeptr, char *buf, int *bufi)
+{
+ switch (typeptr->base)
+ {
+ case BT_CHAR:
+ memcpy (&buf[*bufi], "qi", 2);
+ break;
+ case BT_SHORT:
+ memcpy (&buf[*bufi], "hi", 2);
+ break;
+ case BT_INT:
+ memcpy (&buf[*bufi], "si", 2);
+ break;
+ case BT_LONG:
+ memcpy (&buf[*bufi], "lg", 2);
+ break;
+ case BT_LONGLONG:
+ memcpy (&buf[*bufi], "di", 2);
+ break;
+ case BT_FLOAT:
+ memcpy (&buf[*bufi], "sf", 2);
+ break;
+ case BT_DOUBLE:
+ memcpy (&buf[*bufi], "df", 2);
+ break;
+ case BT_LONGDOUBLE:
+ memcpy (&buf[*bufi], "ld", 2);
+ break;
+ case BT_INT128:
+ memcpy (&buf[*bufi], "ti", 2);
+ break;
+ case BT_FLOAT128:
+ memcpy (&buf[*bufi], "tf", 2);
+ break;
+ case BT_BOOL:
+ memcpy (&buf[*bufi], "bi", 2);
+ break;
+ case BT_STRING:
+ memcpy (&buf[*bufi], "st", 2);
+ break;
+ case BT_DECIMAL32:
+ memcpy (&buf[*bufi], "sd", 2);
+ break;
+ case BT_DECIMAL64:
+ memcpy (&buf[*bufi], "dd", 2);
+ break;
+ case BT_DECIMAL128:
+ memcpy (&buf[*bufi], "td", 2);
+ break;
+ case BT_IBM128:
+ memcpy (&buf[*bufi], "if", 2);
+ break;
+ default:
+ (*diag) ("unhandled basetype %d.\n", typeptr->base);
+ exit (1);
+ }
+
+ *bufi += 2;
+}
+
+/* Build a function type descriptor identifier from the return type
+ and argument types described by PROTOPTR, and store it if it does
+ not already exist. Return the identifier. */
+static char *
+construct_fntype_id (prototype *protoptr)
+{
+ /* Determine the maximum space for a function type descriptor id.
+ Each type requires at most 9 characters (6 for the mode*, 1 for
+ the optional 'u' preceding the mode, 1 for the optional 'p'
+ preceding the mode, and 1 for an underscore following the mode).
+ We also need 5 characters for the string "ftype" that separates
+ the return mode from the argument modes. The last argument doesn't
+ need a trailing underscore, but we count that as the one trailing
+ "ftype" instead. For the special case of zero arguments, we need 9
+ for the return type and 7 for "ftype_v". Finally, we need one
+ character for the terminating null. Thus for a function with N
+ arguments, we need at most 9N+15 characters for N>0, otherwise 17.
+ ----
+ *Worst case is bv16qi for "vector bool char". */
+ int len = protoptr->nargs ? (protoptr->nargs + 1) * 9 + 6 : 17;
+ char *buf = (char *) malloc (len);
+ int bufi = 0;
+
+ if (protoptr->rettype.ispointer)
+ buf[bufi++] = 'p';
+
+ if (protoptr->rettype.isvoid)
+ buf[bufi++] = 'v';
+ else
+ {
+ if (protoptr->rettype.isunsigned)
+ buf[bufi++] = 'u';
+ if (protoptr->rettype.isvector)
+ complete_vector_type (&protoptr->rettype, buf, &bufi);
+ else
+ complete_base_type (&protoptr->rettype, buf, &bufi);
+ }
+
+ memcpy (&buf[bufi], "_ftype", 6);
+ bufi += 6;
+
+ if (!protoptr->nargs)
+ {
+ memcpy (&buf[bufi], "_v", 2);
+ bufi += 2;
+ }
+ else
+ {
+ typelist *argptr = protoptr->args;
+ for (int i = 0; i < protoptr->nargs; i++, argptr = argptr->next)
+ {
+ assert (argptr);
+ buf[bufi++] = '_';
+ if (argptr->info.isconst
+ && argptr->info.base == BT_INT
+ && !argptr->info.ispointer)
+ {
+ buf[bufi++] = 'c';
+ buf[bufi++] = 'i';
+ continue;
+ }
+ if (argptr->info.ispointer)
+ {
+ if (argptr->info.isvoid)
+ {
+ if (argptr->info.isconst)
+ {
+ memcpy (&buf[bufi], "pcvoid", 6);
+ bufi += 6;
+ continue;
+ }
+ else
+ {
+ buf[bufi++] = 'p';
+ buf[bufi++] = 'v';
+ continue;
+ }
+ }
+ else
+ buf[bufi++] = 'p';
+ }
+
+ if (argptr->info.isunsigned)
+ buf[bufi++] = 'u';
+ if (argptr->info.isvector)
+ complete_vector_type (&argptr->info, buf, &bufi);
+ else
+ complete_base_type (&argptr->info, buf, &bufi);
+ }
+ assert (!argptr);
+ }
+
+ buf[bufi] = '\0';
+
+ /* Ignore return value, as duplicates are expected. */
+ (void) rbt_insert (&fntype_rbt, buf);
+
+ return buf;
+}
+
/* Parse a function prototype. This code is shared by the bif and overload
file processing. */
static parse_codes
@@ -1391,6 +1616,10 @@ parse_bif_entry (void)
if (parse_prototype (&bifs[curr_bif].proto) == PC_PARSEFAIL)
return PC_PARSEFAIL;
+ /* Build a function type descriptor identifier from the return type
+ and argument types, and store it if it does not already exist. */
+ bifs[curr_bif].fndecl = construct_fntype_id (&bifs[curr_bif].proto);
+
/* Now process line 2. First up is the builtin id. */
if (!advance_line (bif_file))
{
@@ -1568,6 +1797,10 @@ parse_ovld_entry (void)
if (ovlds[curr_ovld].proto.nargs > max_ovld_args)
max_ovld_args = ovlds[curr_ovld].proto.nargs;
+ /* Build a function type descriptor identifier from the return type
+ and argument types, and store it if it does not already exist. */
+ ovlds[curr_ovld].fndecl = construct_fntype_id (&ovlds[curr_ovld].proto);
+
/* Now process line 2, which just contains the builtin id and an
optional overload id. */
if (!advance_line (ovld_file))