nsz Git - libfirm/blob - scripts/gen_ir.py

   1 #!/usr/bin/env python
   2 import sys
   3 from jinja2 import Environment, Template
   4 from jinja2.filters import do_dictsort
   5 from spec_util import is_dynamic_pinned, verify_node
   6 import ir_spec
   7
   8 def format_argdecls(node, first = False, voidwhenempty = False):
   9         if not node.has_key("args") or len(node["args"]) == 0:
  10                 if voidwhenempty:
  11                         return "void"
  12                 else:
  13                         return ""
  14
  15         res = ""
  16         if not first:
  17                 comma = ", "
  18         else:
  19                 comma = ""
  20         for arg in node["args"]:
  21                 res = res + (comma + arg["type"] + " " + arg["name"])
  22                 comma = ", "
  23         return res
  24
  25 def format_args(node, first = False):
  26         if not node.has_key("args"):
  27                 return ""
  28
  29         res = ""
  30         if not first:
  31                 comma = ", "
  32         else:
  33                 comma = ""
  34         for arg in node["args"]:
  35                 res = res + (comma + arg["name"])
  36                 comma = ", "
  37         return res
  38
  39 def format_blockdecl(node):
  40         if node.get("knownBlock"):
  41                 return ""
  42         else:
  43                 return ", ir_node *block"
  44
  45 def format_block(node):
  46         if node.get("knownBlock"):
  47                 return ""
  48         else:
  49                 return ", block"
  50
  51 def format_curblock(node):
  52         if node.get("knownBlock"):
  53                 return ""
  54         else:
  55                 return ", current_ir_graph->current_block"
  56
  57 def format_insdecl(node):
  58         arity = node["arity"]
  59         if arity == "variable" and len(node["ins"]) == 0 or arity == "dynamic" or arity == 0:
  60                 return ""
  61
  62         if arity == "variable":
  63                 insarity = len(node["ins"])
  64                 res = "int r_arity = arity + " + `insarity` + ";\n\tir_node **r_in;\n\t" \
  65                         + "NEW_ARR_A(ir_node *, r_in, r_arity);\n\t"
  66                 i = 0
  67                 for input in node["ins"]:
  68                         res += "r_in[" + `i` + "] = irn_" + input + ";\n\t"
  69                         i += 1
  70                 res += "memcpy(&r_in[" + `insarity` + "], in, sizeof(ir_node *) * arity);\n\t"
  71         else:
  72                 res = "ir_node *in[" + `arity` + "];\n\t"
  73                 i = 0
  74                 for input in node["ins"]:
  75                         res += "in[" + `i` + "] = irn_" + input + ";\n\t"
  76                         i += 1
  77         return res
  78
  79 def format_arity_and_ins(node):
  80         arity = node["arity"]
  81         if arity == "dynamic":
  82                 return "-1, NULL"
  83         elif arity == "variable":
  84                 if len(node["ins"]) == 0:
  85                         return "arity, in"
  86                 else:
  87                         return "r_arity, r_in"
  88         elif arity == 0:
  89                 return "0, NULL"
  90         else:
  91                 return `arity` + ", in"
  92
  93 env = Environment()
  94 env.filters['argdecls']  = format_argdecls
  95 env.filters['args']      = format_args
  96 env.filters['blockdecl'] = format_blockdecl
  97 env.filters['block']     = format_block
  98 env.filters['curblock']  = format_curblock
  99 env.filters['insdecl']       = format_insdecl
 100 env.filters['arity_and_ins'] = format_arity_and_ins
 101
 102 def add_attr(list, type, name, init = None, initname = None):
 103         if initname == None:
 104                 initname = "." + name
 105         if init != None:
 106                 list.append(dict(type = type, name = name, init = init, initname = initname))
 107         else:
 108                 list.append(dict(type = type, name = name, initname = initname))
 109
 110 def prepare_attr(attr):
 111         if "init" in attr:
 112                 return dict(type = attr["type"], name = attr["name"], init = attr["init"])
 113         else:
 114                 return dict(type = attr["type"], name = attr["name"])
 115
 116 def preprocess_node(nodename, node):
 117         # set default attributes
 118         if "is_a" in node:
 119                 parent = ir_spec.nodes[node["is_a"]]
 120                 node["ins"] = parent["ins"]
 121                 if "outs" in parent:
 122                         node["outs"] = parent["outs"]
 123
 124         if "outs" in node:
 125                 node["mode"] = "mode_T"
 126         if "nodbginfo" in node:
 127                 node["db"] = "NULL"
 128                 node["dbdecl"] = ""
 129                 node["dbdeclnocomma"] = ""
 130         else:
 131                 node["db"] = "db"
 132                 node["dbdecl"] = "dbg_info *db, "
 133                 node["dbdeclnocomma"] = "dbg_info *db"
 134
 135         node.setdefault("ins", [])
 136         node.setdefault("arity", len(node["ins"]))
 137         node.setdefault("attrs", [])
 138         node.setdefault("constrname", nodename);
 139         node.setdefault("constructor_args", [])
 140         node.setdefault("attrs_name", nodename.lower())
 141         node.setdefault("block", "block")
 142         node.setdefault("pinned", "no")
 143
 144         verify_node(node)
 145
 146
 147         # construct node arguments
 148         arguments = [ ]
 149         initattrs = [ ]
 150         specialconstrs = [ ]
 151         for input in node["ins"]:
 152                 arguments.append(dict(type = "ir_node *", name = "irn_" + input))
 153
 154         if node["arity"] == "variable":
 155                 arguments.append(dict(type = "int", name = "arity"))
 156                 arguments.append(dict(type = "ir_node **", name = "in"))
 157
 158         if "mode" not in node:
 159                 arguments.append(dict(type = "ir_mode *", name = "mode"))
 160                 node["mode"] = "mode"
 161
 162         attrs_with_special = 0
 163         for attr in node["attrs"]:
 164                 attr.setdefault("initname", "." + attr["name"])
 165
 166                 if "special" in attr:
 167                         if not "init" in attr:
 168                                 print "Node type %s has an attribute with a \"special\" entry but without \"init\"" % nodename
 169                                 sys.exit(1)
 170
 171                         if attrs_with_special != 0:
 172                                 print "Node type %s has more than one attribute with a \"special\" entry" % nodename
 173                                 sys.exit(1)
 174
 175                         attrs_with_special += 1
 176
 177                         if "prefix" in attr["special"]:
 178                                 specialname = attr["special"]["prefix"] + nodename
 179                         elif "suffix" in attr["special"]:
 180                                 specialname = nodename + attr["special"]["suffix"]
 181                         else:
 182                                 print "Unknown special constructor type for node type %s" % nodename
 183                                 sys.exit(1)
 184
 185                         specialconstrs.append(
 186                                 dict(
 187                                         constrname = specialname,
 188                                         attr = attr
 189                                 )
 190                         )
 191                 elif not "init" in attr:
 192                         arguments.append(prepare_attr(attr))
 193
 194         # dynamic pin state means more constructor arguments
 195         if is_dynamic_pinned(node):
 196                 if "pinned_init" in node:
 197                         initattrs.append(dict(
 198                                 initname = ".exc.pin_state",
 199                                 init     = "op_pin_state_" + node["pinned_init"]
 200                         ))
 201                 else:
 202                         node["constructor_args"].append(
 203                                 dict(
 204                                         name = "pin_state",
 205                                         type = "op_pin_state"
 206                                 )
 207                         )
 208                         initattrs.append(dict(
 209                                 initname = ".exc.pin_state",
 210                                 init     = "pin_state"
 211                         ))
 212
 213         for arg in node["constructor_args"]:
 214                 arguments.append(prepare_attr(arg))
 215                 if arg["type"] == "ir_cons_flags":
 216                         name = arg["name"]
 217                         initattrs.append(dict(initname = ".exc.pin_state",
 218                                 init = name + " & cons_floats ? op_pin_state_floats : op_pin_state_pinned"))
 219                         initattrs.append(dict(initname = ".volatility",
 220                                 init = name + " & cons_volatile ? volatility_is_volatile : volatility_non_volatile"))
 221                         initattrs.append(dict(initname = ".aligned",
 222                                 init = name + " & cons_unaligned ? align_non_aligned : align_is_aligned"))
 223
 224         node["args"] = arguments
 225         node["initattrs"] = initattrs
 226         node["special_constructors"] = specialconstrs
 227
 228 #############################
 229
 230 node_template = env.from_string('''
 231 ir_node *new_rd_{{node["constrname"]}}({{node["dbdecl"]}}ir_graph *irg{{node|blockdecl}}{{node|argdecls}})
 232 {
 233         ir_node *res;
 234         ir_graph *rem = current_ir_graph;
 235         {{node|insdecl}}
 236         current_ir_graph = irg;
 237         res = new_ir_node({{node["db"]}}, irg, {{node["block"]}}, op_{{nodename}}, {{node["mode"]}}, {{node|arity_and_ins}});
 238         {% for attr in node["attrs"] -%}
 239                 res->attr.{{node["attrs_name"]}}{{attr["initname"]}} =
 240                 {%- if "init" in attr %} {{ attr["init"] -}};
 241                 {%- else              %} {{ attr["name"] -}};
 242                 {% endif %}
 243         {% endfor %}
 244         {%- for attr in node["initattrs"] -%}
 245                 res->attr.{{node["attrs_name"]}}{{attr["initname"]}} = {{ attr["init"] -}};
 246         {% endfor %}
 247         {{- node["init"] }}
 248         {% if node["optimize"] != False -%}
 249                 res = optimize_node(res);
 250         {% endif -%}
 251         IRN_VRFY_IRG(res, irg);
 252         current_ir_graph = rem;
 253         return res;
 254 }
 255
 256 ir_node *new_r_{{node["constrname"]}}(ir_graph *irg{{node|blockdecl}}{{node|argdecls}})
 257 {
 258         {% if node["nodbginfo"] -%}
 259                 return new_rd_{{node["constrname"]}}(irg{{node|block}}{{node|args}});
 260         {%- else -%}
 261                 return new_rd_{{node["constrname"]}}(NULL, irg{{node|block}}{{node|args}});
 262         {%- endif %}
 263 }
 264
 265 ir_node *new_d_{{node["constrname"]}}({{node["dbdeclnocomma"]}}{{node|argdecls(node["nodbginfo"])}})
 266 {
 267         ir_node *res;
 268         {{ node["d_pre"] }}
 269         {% if node["nodbginfo"] -%}
 270                 res = new_rd_{{node["constrname"]}}(current_ir_graph{{node|curblock}}{{node|args}});
 271         {%- else -%}
 272                 res = new_rd_{{node["constrname"]}}(db, current_ir_graph{{node|curblock}}{{node|args}});
 273         {%- endif %}
 274         {{ node["d_post"] }}
 275         return res;
 276 }
 277
 278 ir_node *new_{{node["constrname"]}}({{node|argdecls(True, True)}})
 279 {
 280         {% if node["nodbginfo"] -%}
 281                 return new_d_{{node["constrname"]}}({{node|args(True)}});
 282         {%- else -%}
 283                 return new_d_{{node["constrname"]}}(NULL{{node|args}});
 284         {%- endif %}
 285 }
 286
 287 ''')
 288
 289 #############################
 290
 291 def main(argv):
 292         """the main function"""
 293
 294         if len(argv) < 3:
 295                 print "usage: %s specname(ignored) destdirectory" % argv[0]
 296                 sys.exit(1)
 297
 298         gendir = argv[2]
 299
 300         # List of TODOs
 301         niymap = ["Anchor", "ASM", "Bad",
 302                 "CallBegin", "Const", "Const_type", "Const_long",
 303                 "defaultProj", "Dummy", "EndReg", "EndExcept",
 304                 "NoMem", "Phi",
 305                 "simpleSel", "SymConst", "SymConst_type", "Sync"]
 306
 307         file = open(gendir + "/gen_ir_cons.c.inl", "w")
 308         for nodename, node in do_dictsort(ir_spec.nodes):
 309                 if nodename in niymap:
 310                         continue
 311                 preprocess_node(nodename, node)
 312                 if not "abstract" in node:
 313                         file.write(node_template.render(vars()))
 314
 315                         if "special_constructors" in node:
 316                                 for special in node["special_constructors"]:
 317                                         node["constrname"] = special["constrname"]
 318                                         special["attr"]["init"] = special["attr"]["special"]["init"]
 319                                         file.write(node_template.render(vars()))
 320         file.write("\n")
 321         file.close()
 322
 323 if __name__ == "__main__":
 324         main(sys.argv)