nsz Git - libfirm/blob - ir/ir/irop.c

   1 /*
   2  * Project:     libFIRM
   3  * File name:   ir/ir/irop.c
   4  * Purpose:     Representation of opcode of intermediate operation.
   5  * Author:      Christian Schaefer
   6  * Modified by: Goetz Lindenmaier
   7  * Created:
   8  * CVS-ID:      $Id$
   9  * Copyright:   (c) 1998-2003 Universität Karlsruhe
  10  * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
  11  */
  12
  13 #ifdef HAVE_CONFIG_H
  14 # include "config.h"
  15 #endif
  16
  17 #ifdef HAVE_STRING_H
  18 # include <string.h>
  19 #endif
  20
  21 # include "irop_t.h"
  22 # include "irnode_t.h"
  23 # include "irhooks.h"
  24
  25 # include "iropt_t.h"             /* for firm_set_default_operations */
  26 # include "irvrfy_t.h"
  27 # include "reassoc_t.h"
  28
  29 # include "xmalloc.h"
  30
  31 /** the available next opcode */
  32 static unsigned next_iro = iro_MaxOpcode;
  33
  34 ir_op *op_Block;       ir_op *get_op_Block     (void) { return op_Block;     }
  35
  36 ir_op *op_Start;       ir_op *get_op_Start     (void) { return op_Start;     }
  37 ir_op *op_End;         ir_op *get_op_End       (void) { return op_End;       }
  38 ir_op *op_Jmp;         ir_op *get_op_Jmp       (void) { return op_Jmp;       }
  39 ir_op *op_IJmp;        ir_op *get_op_IJmp      (void) { return op_IJmp;      }
  40 ir_op *op_Cond;        ir_op *get_op_Cond      (void) { return op_Cond;      }
  41 ir_op *op_Return;      ir_op *get_op_Return    (void) { return op_Return;    }
  42
  43 ir_op *op_Sel;         ir_op *get_op_Sel       (void) { return op_Sel;       }
  44 ir_op *op_InstOf;      ir_op *get_op_InstOf    (void) { return op_InstOf;    }
  45
  46 ir_op *op_Const;       ir_op *get_op_Const     (void) { return op_Const;     }
  47 ir_op *op_SymConst;    ir_op *get_op_SymConst  (void) { return op_SymConst;  }
  48
  49 ir_op *op_Call;        ir_op *get_op_Call      (void) { return op_Call;      }
  50 ir_op *op_Add;         ir_op *get_op_Add       (void) { return op_Add;       }
  51 ir_op *op_Sub;         ir_op *get_op_Sub       (void) { return op_Sub;       }
  52 ir_op *op_Minus;       ir_op *get_op_Minus     (void) { return op_Minus;     }
  53 ir_op *op_Mul;         ir_op *get_op_Mul       (void) { return op_Mul;       }
  54 ir_op *op_Quot;        ir_op *get_op_Quot      (void) { return op_Quot;      }
  55 ir_op *op_DivMod;      ir_op *get_op_DivMod    (void) { return op_DivMod;    }
  56 ir_op *op_Div;         ir_op *get_op_Div       (void) { return op_Div;       }
  57 ir_op *op_Mod;         ir_op *get_op_Mod       (void) { return op_Mod;       }
  58 ir_op *op_Abs;         ir_op *get_op_Abs       (void) { return op_Abs;       }
  59 ir_op *op_And;         ir_op *get_op_And       (void) { return op_And;       }
  60 ir_op *op_Or;          ir_op *get_op_Or        (void) { return op_Or;        }
  61 ir_op *op_Eor;         ir_op *get_op_Eor       (void) { return op_Eor;       }
  62 ir_op *op_Not;         ir_op *get_op_Not       (void) { return op_Not;       }
  63 ir_op *op_Cmp;         ir_op *get_op_Cmp       (void) { return op_Cmp;       }
  64 ir_op *op_Shl;         ir_op *get_op_Shl       (void) { return op_Shl;       }
  65 ir_op *op_Shr;         ir_op *get_op_Shr       (void) { return op_Shr;       }
  66 ir_op *op_Shrs;        ir_op *get_op_Shrs      (void) { return op_Shrs;      }
  67 ir_op *op_Rot;         ir_op *get_op_Rot       (void) { return op_Rot;       }
  68 ir_op *op_Conv;        ir_op *get_op_Conv      (void) { return op_Conv;      }
  69 ir_op *op_Cast;        ir_op *get_op_Cast      (void) { return op_Cast;      }
  70 ir_op *op_Carry;       ir_op *get_op_Carry     (void) { return op_Carry;     }
  71 ir_op *op_Borrow;      ir_op *get_op_Borrow    (void) { return op_Borrow;    }
  72
  73 ir_op *op_Phi;         ir_op *get_op_Phi       (void) { return op_Phi;       }
  74
  75 ir_op *op_Load;        ir_op *get_op_Load      (void) { return op_Load;      }
  76 ir_op *op_Store;       ir_op *get_op_Store     (void) { return op_Store;     }
  77 ir_op *op_Alloc;       ir_op *get_op_Alloc     (void) { return op_Alloc;     }
  78 ir_op *op_Free;        ir_op *get_op_Free      (void) { return op_Free;      }
  79 ir_op *op_Sync;        ir_op *get_op_Sync      (void) { return op_Sync;      }
  80
  81 ir_op *op_Tuple;       ir_op *get_op_Tuple     (void) { return op_Tuple;     }
  82 ir_op *op_Proj;        ir_op *get_op_Proj      (void) { return op_Proj;      }
  83 ir_op *op_Id;          ir_op *get_op_Id        (void) { return op_Id;        }
  84 ir_op *op_Bad;         ir_op *get_op_Bad       (void) { return op_Bad;       }
  85 ir_op *op_Confirm;     ir_op *get_op_Confirm   (void) { return op_Confirm;   }
  86
  87 ir_op *op_Unknown;     ir_op *get_op_Unknown   (void) { return op_Unknown;   }
  88 ir_op *op_Filter;      ir_op *get_op_Filter    (void) { return op_Filter;    }
  89 ir_op *op_Break;       ir_op *get_op_Break     (void) { return op_Break;     }
  90 ir_op *op_CallBegin;   ir_op *get_op_CallBegin (void) { return op_CallBegin; }
  91 ir_op *op_EndReg;      ir_op *get_op_EndReg    (void) { return op_EndReg;    }
  92 ir_op *op_EndExcept;   ir_op *get_op_EndExcept (void) { return op_EndExcept; }
  93
  94 ir_op *op_NoMem;       ir_op *get_op_NoMem     (void) { return op_NoMem;     }
  95 ir_op *op_Mux;         ir_op *get_op_Mux       (void) { return op_Mux;       }
  96 ir_op *op_Psi;         ir_op *get_op_Psi       (void) { return op_Psi;       }
  97 ir_op *op_CopyB;       ir_op *get_op_CopyB     (void) { return op_CopyB;     }
  98
  99 ir_op *op_Raise;       ir_op *get_op_Raise     (void) { return op_Raise;     }
 100 ir_op *op_Bound;       ir_op *get_op_Bound     (void) { return op_Bound;     }
 101
 102 /*
 103  * Copies all attributes stored in the old node to the new node.
 104  * Assumes both have the same opcode and sufficient size.
 105  */
 106 void default_copy_attr(const ir_node *old_node, ir_node *new_node) {
 107   unsigned size = firm_add_node_size;
 108
 109   assert(get_irn_op(old_node) == get_irn_op(new_node));
 110   memcpy(&new_node->attr, &old_node->attr, get_op_attr_size(get_irn_op(old_node)));
 111
 112   if (size > 0) {
 113     /* copy additional node data */
 114     memcpy(get_irn_data(new_node, void, size), get_irn_data(old_node, void, size), size);
 115   }
 116 }
 117
 118 /**
 119  * Copies all attributes stored in the old node to the new node.
 120  * Assumes both have the same opcode and sufficient size.
 121  */
 122 static void
 123 call_copy_attr(const ir_node *old_node, ir_node *new_node) {
 124   default_copy_attr(old_node, new_node);
 125
 126   remove_Call_callee_arr(new_node);
 127 }
 128
 129 static void
 130 block_copy_attr(const ir_node *old_node, ir_node *new_node)
 131 {
 132   default_copy_attr(old_node, new_node);
 133   INIT_LIST_HEAD(&new_node->attr.block.succ_head);
 134 }
 135
 136 /**
 137  * Sets the default copy_attr operation for an ir_ops
 138  *
 139  * @param code   the opcode for the default operation
 140  * @param ops    the operations initialized
 141  *
 142  * @return
 143  *    The operations.
 144  */
 145 static ir_op_ops *firm_set_default_copy_attr(opcode code, ir_op_ops *ops) {
 146   if (code == iro_Call)
 147     ops->copy_attr = call_copy_attr;
 148   else if (code == iro_Block)
 149     ops->copy_attr = block_copy_attr;
 150   else {
 151     /* not allowed to be NULL */
 152     if (! ops->copy_attr)
 153       ops->copy_attr = default_copy_attr;
 154   }
 155
 156   return ops;
 157 }
 158
 159 /* Creates a new ir operation. */
 160 ir_op *
 161 new_ir_op(opcode code, const char *name, op_pin_state p,
 162           unsigned flags, op_arity opar, int op_index, size_t attr_size,
 163           const ir_op_ops *ops)
 164 {
 165   ir_op *res;
 166
 167   res = (ir_op *)xmalloc(sizeof(*res));
 168   memset(res, 0, sizeof(*res));
 169
 170   res->code      = code;
 171   res->name      = new_id_from_chars(name, strlen(name));
 172   res->op_pin_state_pinned = p;
 173   res->attr_size = attr_size;
 174   res->flags     = flags;
 175   res->opar      = opar;
 176   res->op_index  = op_index;
 177   res->tag       = NULL;
 178
 179   if (ops)
 180     memcpy(&res->ops, ops, sizeof(res->ops));
 181   else /* no given ops, set all operations to NULL */
 182     memset(&res->ops, 0, sizeof(res->ops));
 183
 184   firm_set_default_operations(code, &res->ops);
 185   firm_set_default_copy_attr(code, &res->ops);
 186   firm_set_default_verifyer(code, &res->ops);
 187   firm_set_default_reassoc(code, &res->ops);
 188
 189   add_irp_opcode(res);
 190
 191   hook_new_ir_op(res);
 192   return res;
 193 }
 194
 195 void free_ir_op(ir_op *code) {
 196   hook_free_ir_op(code);
 197
 198   remove_irp_opcode(code);
 199   free(code);
 200 }
 201
 202 void
 203 init_op(void)
 204 {
 205 #define N   irop_flag_none
 206 #define L   irop_flag_labeled
 207 #define C   irop_flag_commutative
 208 #define X   irop_flag_cfopcode
 209 #define I   irop_flag_ip_cfopcode
 210 #define F   irop_flag_fragile
 211 #define Y   irop_flag_forking
 212 #define H   irop_flag_highlevel
 213 #define c   irop_flag_constlike
 214 #define K   irop_flag_keep
 215
 216   op_Block     = new_ir_op(iro_Block,     "Block",     op_pin_state_pinned, L,       oparity_variable, -1, sizeof(block_attr), NULL);
 217
 218   op_Start     = new_ir_op(iro_Start,     "Start",     op_pin_state_pinned, X,       oparity_zero,     -1, sizeof(start_attr), NULL);
 219   op_End       = new_ir_op(iro_End,       "End",       op_pin_state_pinned, X,       oparity_dynamic,  -1, 0, NULL);
 220   op_Jmp       = new_ir_op(iro_Jmp,       "Jmp",       op_pin_state_pinned, X,       oparity_zero,     -1, 0, NULL);
 221   op_IJmp      = new_ir_op(iro_IJmp,      "IJmp",      op_pin_state_pinned, X|K,     oparity_unary,    -1, 0, NULL);
 222   op_Cond      = new_ir_op(iro_Cond,      "Cond",      op_pin_state_pinned, X|Y,     oparity_any,      -1, sizeof(cond_attr), NULL);
 223   op_Return    = new_ir_op(iro_Return,    "Return",    op_pin_state_pinned, X,       oparity_zero,     -1, 0, NULL);
 224
 225   op_Const     = new_ir_op(iro_Const,     "Const",     op_pin_state_floats, c,       oparity_zero,     -1, sizeof(const_attr), NULL);
 226   op_SymConst  = new_ir_op(iro_SymConst,  "SymConst",  op_pin_state_floats, c,       oparity_zero,     -1, sizeof(symconst_attr), NULL);
 227
 228   op_Sel       = new_ir_op(iro_Sel,       "Sel",       op_pin_state_floats, H,       oparity_any,      -1, sizeof(sel_attr), NULL);
 229
 230   op_Call      = new_ir_op(iro_Call,      "Call",      op_pin_state_mem_pinned, F,   oparity_variable, -1, sizeof(call_attr), NULL);
 231   op_Add       = new_ir_op(iro_Add,       "Add",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
 232   op_Minus     = new_ir_op(iro_Minus,     "Minus",     op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
 233   op_Sub       = new_ir_op(iro_Sub,       "Sub",       op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
 234   op_Mul       = new_ir_op(iro_Mul,       "Mul",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
 235   op_Quot      = new_ir_op(iro_Quot,      "Quot",      op_pin_state_exc_pinned, F,   oparity_binary,    1, sizeof(except_attr), NULL);
 236   op_DivMod    = new_ir_op(iro_DivMod,    "DivMod",    op_pin_state_exc_pinned, F,   oparity_binary,    1, sizeof(except_attr), NULL);
 237   op_Div       = new_ir_op(iro_Div,       "Div",       op_pin_state_exc_pinned, F,   oparity_binary,    1, sizeof(except_attr), NULL);
 238   op_Mod       = new_ir_op(iro_Mod,       "Mod",       op_pin_state_exc_pinned, F,   oparity_binary,    1, sizeof(except_attr), NULL);
 239   op_Abs       = new_ir_op(iro_Abs,       "Abs",       op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
 240   op_And       = new_ir_op(iro_And,       "And",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
 241   op_Or        = new_ir_op(iro_Or,        "Or",        op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
 242   op_Eor       = new_ir_op(iro_Eor,       "Eor",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
 243   op_Not       = new_ir_op(iro_Not,       "Not",       op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
 244   op_Cmp       = new_ir_op(iro_Cmp,       "Cmp",       op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
 245   op_Shl       = new_ir_op(iro_Shl,       "Shl",       op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
 246   op_Shr       = new_ir_op(iro_Shr,       "Shr",       op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
 247   op_Shrs      = new_ir_op(iro_Shrs,      "Shrs",      op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
 248   op_Rot       = new_ir_op(iro_Rot,       "Rot",       op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
 249   op_Conv      = new_ir_op(iro_Conv,      "Conv",      op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
 250   op_Cast      = new_ir_op(iro_Cast,      "Cast",      op_pin_state_floats, N|H,     oparity_unary,     0, sizeof(cast_attr), NULL);
 251   op_Carry     = new_ir_op(iro_Carry,     "Carry",     op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
 252   op_Borrow    = new_ir_op(iro_Borrow,    "Borrow",    op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
 253
 254   op_Phi       = new_ir_op(iro_Phi,       "Phi",       op_pin_state_pinned, N,       oparity_variable, -1, sizeof(int), NULL);
 255
 256   op_Load      = new_ir_op(iro_Load,      "Load",      op_pin_state_exc_pinned, F,   oparity_any,      -1, sizeof(load_attr), NULL);
 257   op_Store     = new_ir_op(iro_Store,     "Store",     op_pin_state_exc_pinned, F,   oparity_any,      -1, sizeof(store_attr), NULL);
 258   op_Alloc     = new_ir_op(iro_Alloc,     "Alloc",     op_pin_state_pinned, F,       oparity_any,      -1, sizeof(alloc_attr), NULL);
 259   op_Free      = new_ir_op(iro_Free,      "Free",      op_pin_state_pinned, N,       oparity_any,      -1, sizeof(free_attr), NULL);
 260   op_Sync      = new_ir_op(iro_Sync,      "Sync",      op_pin_state_pinned, N,       oparity_any,      -1, 0, NULL);
 261
 262   op_Proj      = new_ir_op(iro_Proj,      "Proj",      op_pin_state_floats, N,       oparity_any,      -1, sizeof(long), NULL);
 263   op_Tuple     = new_ir_op(iro_Tuple,     "Tuple",     op_pin_state_floats, L,       oparity_variable, -1, 0, NULL);
 264   op_Id        = new_ir_op(iro_Id,        "Id",        op_pin_state_floats, N,       oparity_any,      -1, 0, NULL);
 265   op_Bad       = new_ir_op(iro_Bad,       "Bad",       op_pin_state_pinned, X|F,     oparity_zero,     -1, 0, NULL);
 266   op_Confirm   = new_ir_op(iro_Confirm,   "Confirm",   op_pin_state_floats, H,       oparity_any,      -1, sizeof(confirm_attr), NULL);
 267
 268   op_Unknown   = new_ir_op(iro_Unknown,   "Unknown",   op_pin_state_pinned, X|F,     oparity_zero,     -1, 0, NULL);
 269   op_Filter    = new_ir_op(iro_Filter,    "Filter",    op_pin_state_pinned, N,       oparity_variable, -1, sizeof(filter_attr), NULL);
 270   op_Break     = new_ir_op(iro_Break,     "Break",     op_pin_state_pinned, X,       oparity_zero,     -1, 0, NULL);
 271   op_CallBegin = new_ir_op(iro_CallBegin, "CallBegin", op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(callbegin_attr), NULL);
 272   op_EndReg    = new_ir_op(iro_EndReg,    "EndReg",    op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(end_attr), NULL);
 273   op_EndExcept = new_ir_op(iro_EndExcept, "EndExcept", op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(end_attr), NULL);
 274
 275   op_NoMem     = new_ir_op(iro_NoMem,     "NoMem",     op_pin_state_pinned, N,       oparity_zero,     -1, 0, NULL);
 276   op_Mux       = new_ir_op(iro_Mux,       "Mux",       op_pin_state_floats, N,       oparity_trinary,  -1, 0, NULL);
 277   op_Psi       = new_ir_op(iro_Psi,       "Psi",       op_pin_state_floats, N,       oparity_variable, -1, 0, NULL);
 278   op_CopyB     = new_ir_op(iro_CopyB,     "CopyB",     op_pin_state_mem_pinned, F|H, oparity_trinary,  -1, sizeof(copyb_attr), NULL);
 279
 280   op_InstOf    = new_ir_op(iro_InstOf,    "InstOf",    op_pin_state_mem_pinned, H,   oparity_unary,    -1, sizeof(io_attr), NULL);
 281   op_Raise     = new_ir_op(iro_Raise,     "Raise",     op_pin_state_pinned,     H|X, oparity_any,      -1, 0, NULL);
 282   op_Bound     = new_ir_op(iro_Bound,     "Bound",     op_pin_state_exc_pinned, F|H, oparity_trinary,  -1, sizeof(bound_attr), NULL);
 283
 284 #undef H
 285 #undef Y
 286 #undef F
 287 #undef I
 288 #undef X
 289 #undef C
 290 #undef L
 291 }
 292
 293
 294 /* free memory used by irop module. */
 295 void finish_op(void) {
 296   free_ir_op (op_Block    ); op_Block     = NULL;
 297
 298   free_ir_op (op_Start    ); op_Start     = NULL;
 299   free_ir_op (op_End      ); op_End       = NULL;
 300   free_ir_op (op_Jmp      ); op_Jmp       = NULL;
 301   free_ir_op (op_Cond     ); op_Cond      = NULL;
 302   free_ir_op (op_Return   ); op_Return    = NULL;
 303
 304   free_ir_op (op_Const    ); op_Const     = NULL;
 305   free_ir_op (op_SymConst ); op_SymConst  = NULL;
 306
 307   free_ir_op (op_Sel      ); op_Sel       = NULL;
 308
 309   free_ir_op (op_Call     ); op_Call      = NULL;
 310   free_ir_op (op_Add      ); op_Add       = NULL;
 311   free_ir_op (op_Minus    ); op_Minus     = NULL;
 312   free_ir_op (op_Sub      ); op_Sub       = NULL;
 313   free_ir_op (op_Mul      ); op_Mul       = NULL;
 314   free_ir_op (op_Quot     ); op_Quot      = NULL;
 315   free_ir_op (op_DivMod   ); op_DivMod    = NULL;
 316   free_ir_op (op_Div      ); op_Div       = NULL;
 317   free_ir_op (op_Mod      ); op_Mod       = NULL;
 318   free_ir_op (op_Abs      ); op_Abs       = NULL;
 319   free_ir_op (op_And      ); op_And       = NULL;
 320   free_ir_op (op_Or       ); op_Or        = NULL;
 321   free_ir_op (op_Eor      ); op_Eor       = NULL;
 322   free_ir_op (op_Not      ); op_Not       = NULL;
 323   free_ir_op (op_Cmp      ); op_Cmp       = NULL;
 324   free_ir_op (op_Shl      ); op_Shl       = NULL;
 325   free_ir_op (op_Shr      ); op_Shr       = NULL;
 326   free_ir_op (op_Shrs     ); op_Shrs      = NULL;
 327   free_ir_op (op_Rot      ); op_Rot       = NULL;
 328   free_ir_op (op_Conv     ); op_Conv      = NULL;
 329   free_ir_op (op_Cast     ); op_Cast      = NULL;
 330   free_ir_op (op_Carry    ); op_Carry     = NULL;
 331   free_ir_op (op_Borrow   ); op_Borrow    = NULL;
 332
 333   free_ir_op (op_Phi      ); op_Phi       = NULL;
 334
 335   free_ir_op (op_Load     ); op_Load      = NULL;
 336   free_ir_op (op_Store    ); op_Store     = NULL;
 337   free_ir_op (op_Alloc    ); op_Alloc     = NULL;
 338   free_ir_op (op_Free     ); op_Free      = NULL;
 339   free_ir_op (op_Sync     ); op_Sync      = NULL;
 340
 341   free_ir_op (op_Proj     ); op_Proj      = NULL;
 342   free_ir_op (op_Tuple    ); op_Tuple     = NULL;
 343   free_ir_op (op_Id       ); op_Id        = NULL;
 344   free_ir_op (op_Bad      ); op_Bad       = NULL;
 345   free_ir_op (op_Confirm  ); op_Confirm   = NULL;
 346
 347   free_ir_op (op_Unknown  ); op_Unknown   = NULL;
 348   free_ir_op (op_Filter   ); op_Filter    = NULL;
 349   free_ir_op (op_Break    ); op_Break     = NULL;
 350   free_ir_op (op_CallBegin); op_CallBegin = NULL;
 351   free_ir_op (op_EndReg   ); op_EndReg    = NULL;
 352   free_ir_op (op_EndExcept); op_EndExcept = NULL;
 353
 354   free_ir_op (op_NoMem    ); op_NoMem     = NULL;
 355   free_ir_op (op_Psi      ); op_Psi       = NULL;
 356   free_ir_op (op_Mux      ); op_Mux       = NULL;
 357   free_ir_op (op_CopyB    ); op_CopyB     = NULL;
 358
 359   free_ir_op (op_InstOf   ); op_InstOf    = NULL;
 360   free_ir_op (op_Raise    ); op_Raise     = NULL;
 361   free_ir_op (op_Bound    ); op_Bound     = NULL;
 362 }
 363
 364 /* Returns the string for the opcode. */
 365 const char *get_op_name (const ir_op *op) {
 366   return get_id_str(op->name);
 367 }
 368
 369 opcode (get_op_code)(const ir_op *op){
 370   return _get_op_code(op);
 371 }
 372
 373 ident *(get_op_ident)(const ir_op *op){
 374   return _get_op_ident(op);
 375 }
 376
 377 const char *get_op_pin_state_name(op_pin_state s) {
 378   switch(s) {
 379 #define XXX(s) case s: return #s
 380   XXX(op_pin_state_floats);
 381   XXX(op_pin_state_pinned);
 382   XXX(op_pin_state_exc_pinned);
 383   XXX(op_pin_state_mem_pinned);
 384 #undef XXX
 385   }
 386         return "<none>";
 387 }
 388
 389 op_pin_state (get_op_pinned)(const ir_op *op) {
 390   return _get_op_pinned(op);
 391 }
 392
 393 /* Sets op_pin_state_pinned in the opcode.  Setting it to floating has no effect
 394    for Phi, Block and control flow nodes. */
 395 void      set_op_pinned(ir_op *op, op_pin_state op_pin_state_pinned) {
 396   if (op == op_Block || op == op_Phi || is_cfopcode(op)) return;
 397   op->op_pin_state_pinned = op_pin_state_pinned;
 398 }
 399
 400 /* retrieve the next free opcode */
 401 unsigned get_next_ir_opcode(void) {
 402   return next_iro++;
 403 }
 404
 405 /* Returns the next free n IR opcode number, allows to register a bunch of user ops */
 406 unsigned get_next_ir_opcodes(unsigned num) {
 407   unsigned base = next_iro;
 408   next_iro += num;
 409   return base;
 410 }
 411
 412 /* Returns the generic function pointer from an ir operation. */
 413 op_func (get_generic_function_ptr)(const ir_op *op) {
 414   return _get_generic_function_ptr(op);
 415 }
 416
 417 /* Store a generic function pointer into an ir operation. */
 418 void (set_generic_function_ptr)(ir_op *op, op_func func) {
 419   _set_generic_function_ptr(op, func);
 420 }
 421
 422 /* Returns the ir_op_ops of an ir_op. */
 423 const ir_op_ops *(get_op_ops)(const ir_op *op) {
 424   return _get_op_ops(op);
 425 }