refactored ir_op_ops
authorMichael Beck <beck@ipd.info.uni-karlsruhe.de>
Wed, 19 Oct 2005 09:42:56 +0000 (09:42 +0000)
committerMichael Beck <beck@ipd.info.uni-karlsruhe.de>
Wed, 19 Oct 2005 09:42:56 +0000 (09:42 +0000)
new public interface for new_ir_op()

[r6742]

ir/ir/irop.c
ir/ir/irop.h

index 73ebbe4..fdf97a3 100644 (file)
@@ -129,21 +129,33 @@ block_copy_attr(const ir_node *old_node, ir_node *new_node)
 }
 
 /**
- * Sets the copy_attr operation for an ir_op
+ * Sets the default copy_attr operation for an ir_ops
+ *
+ * @param code   the opcode for the default operation
+ * @param ops    the operations initialized
+ *
+ * @return
+ *    The operations.
  */
-static ir_op *firm_set_default_copy_attr(ir_op *op) {
-  if (op->code == iro_Call)
-    op->copy_attr = call_copy_attr;
-  else if (op->code == iro_Block)
-    op->copy_attr = block_copy_attr;
-  else
-    op->copy_attr = default_copy_attr;
-
-  return op;
+static ir_op_ops *firm_set_default_copy_attr(opcode code, ir_op_ops *ops) {
+  if (code == iro_Call)
+    ops->copy_attr = call_copy_attr;
+  else if (code == iro_Block)
+    ops->copy_attr = block_copy_attr;
+  else {
+    /* not allowed to be NULL */
+    if (! ops->copy_attr)
+      ops->copy_attr = default_copy_attr;
+  }
+
+  return ops;
 }
 
+/* Creates a new ir operation. */
 ir_op *
-new_ir_op(opcode code, const char *name, op_pin_state p, unsigned flags, op_arity opar, int op_index, size_t attr_size)
+new_ir_op(opcode code, const char *name, op_pin_state p,
+          unsigned flags, op_arity opar, int op_index, size_t attr_size,
+          const ir_op_ops *ops)
 {
   ir_op *res;
 
@@ -158,9 +170,14 @@ new_ir_op(opcode code, const char *name, op_pin_state p, unsigned flags, op_arit
   res->opar      = opar;
   res->op_index  = op_index;
 
-  firm_set_default_operations(res);
-  firm_set_default_copy_attr(res);
-  firm_set_default_verifyer(res);
+  if (ops)
+    memcpy(&res->ops, ops, sizeof(res->ops));
+  else /* no given ops, set all operations to NULL */
+    memset(&res->ops, 0, sizeof(res->ops));
+
+  firm_set_default_operations(code, &res->ops);
+  firm_set_default_copy_attr(code, &res->ops);
+  firm_set_default_verifyer(code, &res->ops);
 
   hook_new_ir_op(res);
   return res;
@@ -184,68 +201,68 @@ init_op(void)
 #define H   irop_flag_highlevel
 #define c   irop_flag_constlike
 
-  op_Block     = new_ir_op(iro_Block,     "Block",     op_pin_state_pinned, L,       oparity_variable, -1, sizeof(block_attr));
-
-  op_Start     = new_ir_op(iro_Start,     "Start",     op_pin_state_pinned, X,       oparity_zero,     -1, sizeof(start_attr));
-  op_End       = new_ir_op(iro_End,       "End",       op_pin_state_pinned, X,       oparity_dynamic,  -1, 0);
-  op_Jmp       = new_ir_op(iro_Jmp,       "Jmp",       op_pin_state_pinned, X,       oparity_zero,     -1, 0);
-  op_IJmp      = new_ir_op(iro_IJmp,      "IJmp",      op_pin_state_pinned, X,       oparity_unary,    -1, 0);
-  op_Cond      = new_ir_op(iro_Cond,      "Cond",      op_pin_state_pinned, L|X|Y,   oparity_any,      -1, sizeof(cond_attr));
-  op_Return    = new_ir_op(iro_Return,    "Return",    op_pin_state_pinned, L|X,     oparity_zero,     -1, 0);
-  op_Raise     = new_ir_op(iro_Raise,     "Raise",     op_pin_state_pinned, L|X,     oparity_any,      -1, 0);
-
-  op_Const     = new_ir_op(iro_Const,     "Const",     op_pin_state_floats, c,       oparity_zero,     -1, sizeof(const_attr));
-  op_SymConst  = new_ir_op(iro_SymConst,  "SymConst",  op_pin_state_floats, c,       oparity_zero,     -1, sizeof(symconst_attr));
-
-  op_Sel       = new_ir_op(iro_Sel,       "Sel",       op_pin_state_floats, L,       oparity_any,      -1, sizeof(sel_attr));
-  op_InstOf    = new_ir_op(iro_InstOf,    "InstOf",    op_pin_state_floats, L,       oparity_any,      -1, sizeof(sel_attr));
-
-  op_Call      = new_ir_op(iro_Call,      "Call",      op_pin_state_mem_pinned, L|F, oparity_variable, -1, sizeof(call_attr));
-  op_Add       = new_ir_op(iro_Add,       "Add",       op_pin_state_floats, C,       oparity_binary,    0, 0);
-  op_Minus     = new_ir_op(iro_Minus,     "Minus",     op_pin_state_floats, N,       oparity_unary,     0, 0);
-  op_Sub       = new_ir_op(iro_Sub,       "Sub",       op_pin_state_floats, N,       oparity_binary,    0, 0);
-  op_Mul       = new_ir_op(iro_Mul,       "Mul",       op_pin_state_floats, C,       oparity_binary,    0, 0);
-  op_Quot      = new_ir_op(iro_Quot,      "Quot",      op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr));
-  op_DivMod    = new_ir_op(iro_DivMod,    "DivMod",    op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr));
-  op_Div       = new_ir_op(iro_Div,       "Div",       op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr));
-  op_Mod       = new_ir_op(iro_Mod,       "Mod",       op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr));
-  op_Abs       = new_ir_op(iro_Abs,       "Abs",       op_pin_state_floats, N,       oparity_unary,     0, 0);
-  op_And       = new_ir_op(iro_And,       "And",       op_pin_state_floats, C,       oparity_binary,    0, 0);
-  op_Or        = new_ir_op(iro_Or,        "Or",        op_pin_state_floats, C,       oparity_binary,    0, 0);
-  op_Eor       = new_ir_op(iro_Eor,       "Eor",       op_pin_state_floats, C,       oparity_binary,    0, 0);
-  op_Not       = new_ir_op(iro_Not,       "Not",       op_pin_state_floats, N,       oparity_unary,     0, 0);
-  op_Cmp       = new_ir_op(iro_Cmp,       "Cmp",       op_pin_state_floats, L,       oparity_binary,    0, 0);
-  op_Shl       = new_ir_op(iro_Shl,       "Shl",       op_pin_state_floats, L,       oparity_binary,    0, 0);
-  op_Shr       = new_ir_op(iro_Shr,       "Shr",       op_pin_state_floats, L,       oparity_binary,    0, 0);
-  op_Shrs      = new_ir_op(iro_Shrs,      "Shrs",      op_pin_state_floats, L,       oparity_binary,    0, 0);
-  op_Rot       = new_ir_op(iro_Rot,       "Rot",       op_pin_state_floats, L,       oparity_binary,    0, 0);
-  op_Conv      = new_ir_op(iro_Conv,      "Conv",      op_pin_state_floats, N,       oparity_unary,     0, 0);
-  op_Cast      = new_ir_op(iro_Cast,      "Cast",      op_pin_state_floats, N|H,     oparity_unary,     0, sizeof(cast_attr));
-
-  op_Phi       = new_ir_op(iro_Phi,       "Phi",       op_pin_state_pinned, L,       oparity_variable, -1, sizeof(int));
-
-  op_Load      = new_ir_op(iro_Load,      "Load",      op_pin_state_exc_pinned, L|F, oparity_any,      -1, sizeof(load_attr));
-  op_Store     = new_ir_op(iro_Store,     "Store",     op_pin_state_exc_pinned, L|F, oparity_any,      -1, sizeof(store_attr));
-  op_Alloc     = new_ir_op(iro_Alloc,     "Alloc",     op_pin_state_pinned, L|F,     oparity_any,      -1, sizeof(alloc_attr));
-  op_Free      = new_ir_op(iro_Free,      "Free",      op_pin_state_pinned, L,       oparity_any,      -1, sizeof(free_attr));
-  op_Sync      = new_ir_op(iro_Sync,      "Sync",      op_pin_state_pinned, N,       oparity_any,      -1, 0);
-
-  op_Proj      = new_ir_op(iro_Proj,      "Proj",      op_pin_state_floats, N,       oparity_any,      -1, sizeof(long));
-  op_Tuple     = new_ir_op(iro_Tuple,     "Tuple",     op_pin_state_floats, L,       oparity_variable, -1, 0);
-  op_Id        = new_ir_op(iro_Id,        "Id",        op_pin_state_floats, N,       oparity_any,      -1, 0);
-  op_Bad       = new_ir_op(iro_Bad,       "Bad",       op_pin_state_pinned, X|F,     oparity_zero,     -1, 0);
-  op_Confirm   = new_ir_op(iro_Confirm,   "Confirm",   op_pin_state_floats, L|H,     oparity_any,      -1, sizeof(confirm_attr));
-
-  op_Unknown   = new_ir_op(iro_Unknown,   "Unknown",   op_pin_state_pinned, X|F,     oparity_zero,     -1, 0);
-  op_Filter    = new_ir_op(iro_Filter,    "Filter",    op_pin_state_pinned, L,       oparity_variable, -1, sizeof(filter_attr));
-  op_Break     = new_ir_op(iro_Break,     "Break",     op_pin_state_pinned, X,       oparity_zero,     -1, 0);
-  op_CallBegin = new_ir_op(iro_CallBegin, "CallBegin", op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(callbegin_attr));
-  op_EndReg    = new_ir_op(iro_EndReg,    "EndReg",    op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(end_attr));
-  op_EndExcept = new_ir_op(iro_EndExcept, "EndExcept", op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(end_attr));
-
-  op_NoMem     = new_ir_op(iro_NoMem,     "NoMem",     op_pin_state_pinned, N,       oparity_zero,     -1, 0);
-  op_Mux       = new_ir_op(iro_Mux,       "Mux",       op_pin_state_floats, N,       oparity_trinary,  -1, 0);
-  op_CopyB     = new_ir_op(iro_CopyB,     "CopyB",   op_pin_state_mem_pinned, L|F|H, oparity_trinary,  -1, sizeof(copyb_attr));
+  op_Block     = new_ir_op(iro_Block,     "Block",     op_pin_state_pinned, L,       oparity_variable, -1, sizeof(block_attr), NULL);
+
+  op_Start     = new_ir_op(iro_Start,     "Start",     op_pin_state_pinned, X,       oparity_zero,     -1, sizeof(start_attr), NULL);
+  op_End       = new_ir_op(iro_End,       "End",       op_pin_state_pinned, X,       oparity_dynamic,  -1, 0, NULL);
+  op_Jmp       = new_ir_op(iro_Jmp,       "Jmp",       op_pin_state_pinned, X,       oparity_zero,     -1, 0, NULL);
+  op_IJmp      = new_ir_op(iro_IJmp,      "IJmp",      op_pin_state_pinned, X,       oparity_unary,    -1, 0, NULL);
+  op_Cond      = new_ir_op(iro_Cond,      "Cond",      op_pin_state_pinned, L|X|Y,   oparity_any,      -1, sizeof(cond_attr), NULL);
+  op_Return    = new_ir_op(iro_Return,    "Return",    op_pin_state_pinned, L|X,     oparity_zero,     -1, 0, NULL);
+  op_Raise     = new_ir_op(iro_Raise,     "Raise",     op_pin_state_pinned, L|X,     oparity_any,      -1, 0, NULL);
+
+  op_Const     = new_ir_op(iro_Const,     "Const",     op_pin_state_floats, c,       oparity_zero,     -1, sizeof(const_attr), NULL);
+  op_SymConst  = new_ir_op(iro_SymConst,  "SymConst",  op_pin_state_floats, c,       oparity_zero,     -1, sizeof(symconst_attr), NULL);
+
+  op_Sel       = new_ir_op(iro_Sel,       "Sel",       op_pin_state_floats, L,       oparity_any,      -1, sizeof(sel_attr), NULL);
+  op_InstOf    = new_ir_op(iro_InstOf,    "InstOf",    op_pin_state_floats, L,       oparity_any,      -1, sizeof(sel_attr), NULL);
+
+  op_Call      = new_ir_op(iro_Call,      "Call",      op_pin_state_mem_pinned, L|F, oparity_variable, -1, sizeof(call_attr), NULL);
+  op_Add       = new_ir_op(iro_Add,       "Add",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
+  op_Minus     = new_ir_op(iro_Minus,     "Minus",     op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
+  op_Sub       = new_ir_op(iro_Sub,       "Sub",       op_pin_state_floats, N,       oparity_binary,    0, 0, NULL);
+  op_Mul       = new_ir_op(iro_Mul,       "Mul",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
+  op_Quot      = new_ir_op(iro_Quot,      "Quot",      op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr), NULL);
+  op_DivMod    = new_ir_op(iro_DivMod,    "DivMod",    op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr), NULL);
+  op_Div       = new_ir_op(iro_Div,       "Div",       op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr), NULL);
+  op_Mod       = new_ir_op(iro_Mod,       "Mod",       op_pin_state_exc_pinned, L|F, oparity_binary,    1, sizeof(except_attr), NULL);
+  op_Abs       = new_ir_op(iro_Abs,       "Abs",       op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
+  op_And       = new_ir_op(iro_And,       "And",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
+  op_Or        = new_ir_op(iro_Or,        "Or",        op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
+  op_Eor       = new_ir_op(iro_Eor,       "Eor",       op_pin_state_floats, C,       oparity_binary,    0, 0, NULL);
+  op_Not       = new_ir_op(iro_Not,       "Not",       op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
+  op_Cmp       = new_ir_op(iro_Cmp,       "Cmp",       op_pin_state_floats, L,       oparity_binary,    0, 0, NULL);
+  op_Shl       = new_ir_op(iro_Shl,       "Shl",       op_pin_state_floats, L,       oparity_binary,    0, 0, NULL);
+  op_Shr       = new_ir_op(iro_Shr,       "Shr",       op_pin_state_floats, L,       oparity_binary,    0, 0, NULL);
+  op_Shrs      = new_ir_op(iro_Shrs,      "Shrs",      op_pin_state_floats, L,       oparity_binary,    0, 0, NULL);
+  op_Rot       = new_ir_op(iro_Rot,       "Rot",       op_pin_state_floats, L,       oparity_binary,    0, 0, NULL);
+  op_Conv      = new_ir_op(iro_Conv,      "Conv",      op_pin_state_floats, N,       oparity_unary,     0, 0, NULL);
+  op_Cast      = new_ir_op(iro_Cast,      "Cast",      op_pin_state_floats, N|H,     oparity_unary,     0, sizeof(cast_attr), NULL);
+
+  op_Phi       = new_ir_op(iro_Phi,       "Phi",       op_pin_state_pinned, L,       oparity_variable, -1, sizeof(int), NULL);
+
+  op_Load      = new_ir_op(iro_Load,      "Load",      op_pin_state_exc_pinned, L|F, oparity_any,      -1, sizeof(load_attr), NULL);
+  op_Store     = new_ir_op(iro_Store,     "Store",     op_pin_state_exc_pinned, L|F, oparity_any,      -1, sizeof(store_attr), NULL);
+  op_Alloc     = new_ir_op(iro_Alloc,     "Alloc",     op_pin_state_pinned, L|F,     oparity_any,      -1, sizeof(alloc_attr), NULL);
+  op_Free      = new_ir_op(iro_Free,      "Free",      op_pin_state_pinned, L,       oparity_any,      -1, sizeof(free_attr), NULL);
+  op_Sync      = new_ir_op(iro_Sync,      "Sync",      op_pin_state_pinned, N,       oparity_any,      -1, 0, NULL);
+
+  op_Proj      = new_ir_op(iro_Proj,      "Proj",      op_pin_state_floats, N,       oparity_any,      -1, sizeof(long), NULL);
+  op_Tuple     = new_ir_op(iro_Tuple,     "Tuple",     op_pin_state_floats, L,       oparity_variable, -1, 0, NULL);
+  op_Id        = new_ir_op(iro_Id,        "Id",        op_pin_state_floats, N,       oparity_any,      -1, 0, NULL);
+  op_Bad       = new_ir_op(iro_Bad,       "Bad",       op_pin_state_pinned, X|F,     oparity_zero,     -1, 0, NULL);
+  op_Confirm   = new_ir_op(iro_Confirm,   "Confirm",   op_pin_state_floats, L|H,     oparity_any,      -1, sizeof(confirm_attr), NULL);
+
+  op_Unknown   = new_ir_op(iro_Unknown,   "Unknown",   op_pin_state_pinned, X|F,     oparity_zero,     -1, 0, NULL);
+  op_Filter    = new_ir_op(iro_Filter,    "Filter",    op_pin_state_pinned, L,       oparity_variable, -1, sizeof(filter_attr), NULL);
+  op_Break     = new_ir_op(iro_Break,     "Break",     op_pin_state_pinned, X,       oparity_zero,     -1, 0, NULL);
+  op_CallBegin = new_ir_op(iro_CallBegin, "CallBegin", op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(callbegin_attr), NULL);
+  op_EndReg    = new_ir_op(iro_EndReg,    "EndReg",    op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(end_attr), NULL);
+  op_EndExcept = new_ir_op(iro_EndExcept, "EndExcept", op_pin_state_pinned, X|I,     oparity_any,      -1, sizeof(end_attr), NULL);
+
+  op_NoMem     = new_ir_op(iro_NoMem,     "NoMem",     op_pin_state_pinned, N,       oparity_zero,     -1, 0, NULL);
+  op_Mux       = new_ir_op(iro_Mux,       "Mux",       op_pin_state_floats, N,       oparity_trinary,  -1, 0, NULL);
+  op_CopyB     = new_ir_op(iro_CopyB,     "CopyB",   op_pin_state_mem_pinned, L|F|H, oparity_trinary,  -1, sizeof(copyb_attr), NULL);
 
 #undef H
 #undef Y
index 5e7b4a8..b3a0de1 100644 (file)
  *  definition is close to the operations specified in UKA Tech-Report
  *  1999-14
  */
+#ifndef _IROP_H_
+#define _IROP_H_
 
-# ifndef _IROP_H_
-# define _IROP_H_
-
-# include "ident.h"
+#include "firm_types.h"
+#include "ident.h"
 
 /** The allowed parities */
 typedef enum {
@@ -35,10 +35,10 @@ typedef enum {
   oparity_trinary,            /**< an trinary operator  -- considering 'numeric' arguments.*/
   oparity_zero,               /**< no operators, as e.g. Const. */
   oparity_variable,           /**< arity not fixed by opcode, but statically
-                                known.  E.g., number of arguments to call. */
+                                                          known.  E.g., number of arguments to call. */
   oparity_dynamic,            /**< arity depends on state of firm representation.
-                                Can change by optimizations...
-                                We must allocate a dynamic in array for the node! */
+                                                    Can change by optimizations...
+                                                    We must allocate a dynamic in array for the node! */
   oparity_any                 /**< other arity */
 } op_arity;
 
@@ -172,23 +172,6 @@ void set_op_pinned(ir_op *op, op_pin_state pinned);
 /** Returns the next free IR opcode number, allows to register user ops */
 unsigned get_next_ir_opcode(void);
 
-/**
- * Creates a new ir operation.
- *
- * @param code      the opcode, one of type \c opcode
- * @param name      the printable name of this opcode
- * @param p         whether operations of this opcode are op_pin_state_pinned or floating
- * @param flags     a bitmask of irop_flags describing the behavior of the ir operation
- * @param opar      the parity of this ir operation
- * @param op_index  if the parity is oparity_unary, oparity_binary or oparity_trinary the index
- *                  of the left operand
- * @param attr_size attribute size for this ir operation
- *
- * @return The generated ir operation.
- */
-ir_op * new_ir_op(opcode code, const char *name, op_pin_state p,
-                  unsigned flags, op_arity opar, int op_index, size_t attr_size);
-
 /**
  * A generic function pointer.
  */
@@ -207,4 +190,115 @@ op_func get_generic_function_ptr(const ir_op *op);
  */
 void set_generic_function_ptr(ir_op *op, op_func func);
 
-# endif /* _IROP_H_ */
+/**
+ * The compute value operation.
+ * This operation evaluates an IR node into a tarval if possible,
+ * returning tarval_bad otherwise.
+ */
+typedef tarval *(*computed_value_func)(ir_node *self);
+
+/**
+ * The equivalent node operation.
+ * This operation returns an equivalent node for the input node.
+ * It does not create new nodes.  It is therefore safe to free self
+ * if the node returned is not self.
+ * If a node returns a Tuple we can not just skip it.  If the size of the
+ * in array fits, we transform n into a tuple (e.g., possible for Div).
+ */
+typedef ir_node *(*equivalent_node_func)(ir_node *self);
+
+/**
+ * The transform node operation.
+ * This operation tries several [inplace] [optimizing] transformations
+ * and returns an equivalent node.
+ * The difference to equivalent_node() is that these
+ * transformations _do_ generate new nodes, and thus the old node must
+ * not be freed even if the equivalent node isn't the old one.
+ */
+typedef ir_node *(*transform_node_func)(ir_node *self);
+
+/**
+ * The node attribute compare operation.
+ * Compares the nodes attributes of two nodes of identical opcode
+ * and returns 0 if the attributes are identical, 1 if they differ.
+ */
+typedef int (*node_cmp_attr_func)(ir_node *a, ir_node *b);
+
+/**
+ * The reassociation operation.
+ * Called from a walker.  Returns non-zero if
+ * a reassociation rule was applied.
+ * The pointer n is set to the newly created node, if some reassociation
+ * was applied.
+ */
+typedef int (*reassociate_func)(ir_node **n);
+
+/**
+ * The copy attribute operation.
+ * Copy the node attributes from a 'old' node to a 'new' one.
+ */
+typedef void (*copy_attr_func)(const ir_node *old_node, ir_node *new_node);
+
+/**
+ * The get_type operation.
+ * Return the type of the node self.
+ */
+typedef type *(*get_type_func)(ir_node *self);
+
+/**
+ * The verify_node operation.
+ * Return non-zero if the node verification is ok, else 0.
+ * Depending on the node verification settings, may even assert.
+ *
+ * @see do_node_verification()
+ */
+typedef int (*verify_node_func)(ir_node *self, ir_graph *irg);
+
+/**
+ * The verify_node operation for Proj(X).
+ * Return non-zero if the node verification is ok, else 0.
+ * Depending on the node verification settings, may even assert.
+ *
+ * @see do_node_verification()
+ */
+typedef int (*verify_proj_node_func)(ir_node *self, ir_node *proj);
+
+/**
+ * io_op Operations.
+ */
+typedef struct {
+  computed_value_func    computed_value;               /**< evaluates a node into a tarval if possible. */
+  equivalent_node_func  equivalent_node;       /**< optimizes the node by returning an equivalent one. */
+  transform_node_func   transform_node;                /**< optimizes the node by transforming it. */
+  node_cmp_attr_func    node_cmp_attr;         /**< compares two node attributes. */
+  reassociate_func      reassociate;      /**< reassociate a tree */
+  copy_attr_func        copy_attr;        /**< copy node attributes */
+  get_type_func         get_type;         /**< return the type of a node */
+  verify_node_func      verify_node;      /**< verify the node */
+  verify_proj_node_func verify_proj_node; /**< verify the Proj node */
+  op_func               generic;          /**< a generic function */
+} ir_op_ops;
+
+/**
+ * Creates a new ir operation.
+ *
+ * @param code      the opcode, one of type \c opcode
+ * @param name      the printable name of this opcode
+ * @param p         whether operations of this opcode are op_pin_state_pinned or floating
+ * @param flags     a bitmask of irop_flags describing the behavior of the ir operation
+ * @param opar      the parity of this ir operation
+ * @param op_index  if the parity is oparity_unary, oparity_binary or oparity_trinary the index
+ *                  of the left operand
+ * @param ops       operations for this opcode, iff NULL default operations are used
+ * @param attr_size attribute size for this ir operation
+ *
+ * @return The generated ir operation.
+ *
+ * This function can create all standard Firm opcode as well as new ones.
+ * The behavior of new opcode depends on the operations \c ops and the \c flags.
+ */
+ir_op * new_ir_op(opcode code, const char *name, op_pin_state p,
+                  unsigned flags, op_arity opar, int op_index, size_t attr_size,
+       const ir_op_ops *ops);
+
+#endif /* _IROP_H_ */