d: Fix ICE: Segmentation fault in build_function_type at gcc/tree.c:8539

gcc/d/ChangeLog:

	PR d/90446
	* d-lang.cc (d_type_for_mode): Check for all internal __intN types.
	(d_type_for_size): Likewise.

From-SVN: r274767

gcc/d/ChangeLog

 2019-08-20  Iain Buclaw  <ibuclaw@gdcproject.org>
 
+	PR d/90446
+	* d-lang.cc (d_type_for_mode): Check for all internal __intN types.
+	(d_type_for_size): Likewise.
+
+2019-08-20  Iain Buclaw  <ibuclaw@gdcproject.org>
+
 	PR d/90445
 	* d-builtins.cc (d_build_c_type_nodes): Test UINTMAX_TYPE for setting
 	uintmax_type_node.  Set signed_size_type_node as the signed_type_for

gcc/d/d-lang.cc

@@ -1360,6 +1360,17 @@ d_type_for_mode (machine_mode mode, int unsignedp)
   if (mode == TYPE_MODE (build_pointer_type (d_int_type)))
     return build_pointer_type (d_int_type);
 
+  for (int i = 0; i < NUM_INT_N_ENTS; i ++)
+    {
+      if (int_n_enabled_p[i] && mode == int_n_data[i].m)
+	{
+	  if (unsignedp)
+	    return int_n_trees[i].unsigned_type;
+	  else
+	    return int_n_trees[i].signed_type;
+	}
+    }
+
   if (COMPLEX_MODE_P (mode))
     {
       machine_mode inner_mode;
@@ -1408,6 +1419,17 @@ d_type_for_size (unsigned bits, int unsignedp)
   if (bits <= TYPE_PRECISION (d_cent_type))
     return unsignedp ? d_ucent_type : d_cent_type;
 
+  for (int i = 0; i < NUM_INT_N_ENTS; i ++)
+    {
+      if (int_n_enabled_p[i] && bits == int_n_data[i].bitsize)
+	{
+	  if (unsignedp)
+	    return int_n_trees[i].unsigned_type;
+	  else
+	    return int_n_trees[i].signed_type;
+	}
+    }
+
   return 0;
 }