X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firmode.c;h=a208d9b077403c0e45967641d0b20e9e15171b0f;hb=8940e28146a93b189ad4e6a6ed409ebf5631eacf;hp=95a6e55b428930c8318d60d56cc7af1a01c420f1;hpb=a94cba60b644054b5f9f1983a6bd9d3f2d6f9142;p=libfirm

diff --git a/ir/ir/irmode.c b/ir/ir/irmode.c
index 95a6e55b4..a208d9b07 100644
--- a/ir/ir/irmode.c
+++ b/ir/ir/irmode.c
@@ -1,85 +1,44 @@
 /*
- * Project:     libFIRM
- * File name:   ir/ir/irmode.c
- * Purpose:     Data modes of operations.
- * Author:      Martin Trapp, Christian Schaefer
- * Modified by: Goetz Lindenmaier, Mathias Heil
- * Created:
- * CVS-ID:      $Id$
- * Copyright:   (c) 1998-2003 Universität Karlsruhe
- * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ * This file is part of libFirm.
+ * Copyright (C) 2012 University of Karlsruhe.
  */
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-# include <string.h>
-#endif
-
-# include <stddef.h>
-
-# include "irmode_t.h"
-# include "ident.h"
-# include "tv.h"
-# include "obst.h"
-
-#if 0
-static long long count = 0;
-#  define ANNOUNCE() printf(__FILE__": call no. %lld (%s)\n", count++, __FUNCTION__)
-#else
-#  define ANNOUNCE() ((void)0)
-#endif
-
-/* * *
- * local values
- * * */
-
-
-/** dynamic array to hold all modes */
-static struct obstack modes;
-
-/** number of defined modes */
-static int num_modes;
-
-/* * *
- * local functions
- * * */
 
 /**
- * Compare modes that don't need to have their code field
- * correctly set
- *
- * TODO: Add other fields
- **/
-INLINE static int modes_are_equal(const ir_mode *m, const ir_mode *n)
-{
-  if (m == n) return 1;
-  if (m->sort         == n->sort &&
-      m->arithmetic   == n->arithmetic &&
-      m->size         == n->size &&
-      m->sign         == n->sign  &&
-      m->modulo_shift == n->modulo_shift &&
-      m->vector_elem  == n->vector_elem)
-    return 1;
-
-  return 0;
-}
-
-/*
- * calculates the next obstack address
+ * @file
+ * @brief    Data modes of operations.
+ * @author   Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Mathias Heil
  */
-static void *next_obstack_adr(struct obstack *o, void *p, size_t s)
-{
-  PTR_INT_TYPE adr = __PTR_TO_INT((char *)p);
-  int mask = obstack_alignment_mask(o);
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include "irprog_t.h"
+#include "irmode_t.h"
+#include "ident.h"
+#include "tv_t.h"
+#include "obst.h"
+#include "irhooks.h"
+#include "irtools.h"
+#include "array.h"
+#include "error.h"
+#include "pattern_dmp.h"
+
+/** Obstack to hold all modes. */
+static struct obstack modes;
 
-  adr += s + mask;
+/** The list of all currently existing modes. */
+static ir_mode **mode_list;
 
-  return __INT_TO_PTR(adr & ~mask);
+static bool modes_are_equal(const ir_mode *m, const ir_mode *n)
+{
+	return m->sort         == n->sort &&
+	       m->arithmetic   == n->arithmetic &&
+	       m->size         == n->size &&
+	       m->sign         == n->sign &&
+	       m->modulo_shift == n->modulo_shift;
 }
 
 /**
@@ -89,35 +48,13 @@ static void *next_obstack_adr(struct obstack *o, void *p, size_t s)
  */
 static ir_mode *find_mode(const ir_mode *m)
 {
-  ir_mode *n, *nn;
-  struct _obstack_chunk	*p;
-
-  p  = modes.chunk;
-  n  = (ir_mode *)p->contents;
-  nn = next_obstack_adr(&modes, n, sizeof(*n));
-  for (; (char *)nn <= modes.next_free;) {
-    assert(is_mode(n));
-    if (modes_are_equal(n, m))
-      return n;
-
-    n  = nn;
-    nn = next_obstack_adr(&modes, n, sizeof(*n));
-  }
-
-  for (p = p->prev; p; p = p->prev) {
-    n  = (ir_mode *)p->contents;
-    nn = next_obstack_adr(&modes, n, sizeof(*n));
-    for (; (char *)nn < p->limit;) {
-      assert(is_mode(n));
-      if (modes_are_equal(n, m))
-	return n;
-
-      n  = nn;
-      nn = next_obstack_adr(&modes, n, sizeof(*n));
-    }
-  }
-
-  return NULL;
+	size_t i, n_modes;
+	for (i = 0, n_modes = ARR_LEN(mode_list); i < n_modes; ++i) {
+		ir_mode *n = mode_list[i];
+		if (modes_are_equal(n, m))
+			return n;
+	}
+	return NULL;
 }
 
 /**
@@ -125,49 +62,46 @@ static ir_mode *find_mode(const ir_mode *m)
  */
 static void set_mode_values(ir_mode* mode)
 {
-  switch (get_mode_sort(mode))
-  {
-    case irms_character:
-    case irms_int_number:
-    case irms_float_number:
-      mode->min = get_tarval_min(mode);
-      mode->max = get_tarval_max(mode);
-      mode->null = get_tarval_null(mode);
-      mode->one = get_tarval_one(mode);
-      break;
-
-    case irms_internal_boolean:
-      mode->min = tarval_b_false;
-      mode->max = tarval_b_true;
-      mode->null = tarval_b_false;
-      mode->one = tarval_b_true;
-      break;
-
-    case irms_reference:
-      mode->min = tarval_bad;
-      mode->max = tarval_bad;
-      mode->null = (get_mode_modecode(mode) == irm_P) ? tarval_P_void : tarval_bad;
-      mode->one = tarval_bad;
-      break;
-
-    case irms_auxiliary:
-    case irms_memory:
-    case irms_control_flow:
-      mode->min = tarval_bad;
-      mode->max = tarval_bad;
-      mode->null = tarval_bad;
-      mode->one = tarval_bad;
-      break;
-  }
-}
-
-/* * *
- * globals defined in irmode.h
- * * */
-
-/* --- Predefined modes --- */
-
-/* FIRM internal modes: */
+	switch (get_mode_sort(mode))    {
+	case irms_reference:
+	case irms_int_number:
+	case irms_float_number:
+		mode->min  = get_tarval_min(mode);
+		mode->max  = get_tarval_max(mode);
+		mode->null = get_tarval_null(mode);
+		mode->one  = get_tarval_one(mode);
+		mode->minus_one = get_tarval_minus_one(mode);
+		if (get_mode_sort(mode) != irms_float_number) {
+			mode->all_one = get_tarval_all_one(mode);
+		} else {
+			mode->all_one = tarval_bad;
+		}
+		break;
+
+	case irms_internal_boolean:
+		mode->min  = tarval_b_false;
+		mode->max  = tarval_b_true;
+		mode->null = tarval_b_false;
+		mode->one  = tarval_b_true;
+		mode->minus_one = tarval_bad;
+		mode->all_one = tarval_b_true;
+		break;
+
+	case irms_control_flow:
+	case irms_block:
+	case irms_tuple:
+	case irms_any:
+	case irms_bad:
+	case irms_memory:
+		mode->min  = tarval_bad;
+		mode->max  = tarval_bad;
+		mode->null = tarval_bad;
+		mode->one  = tarval_bad;
+		mode->minus_one = tarval_bad;
+		break;
+	}
+}
+
 ir_mode *mode_T;
 ir_mode *mode_X;
 ir_mode *mode_M;
@@ -175,771 +109,602 @@ ir_mode *mode_BB;
 ir_mode *mode_ANY;
 ir_mode *mode_BAD;
 
-/* predefined numerical modes: */
-ir_mode *mode_F;    /* float */
-ir_mode *mode_D;    /* double */
-ir_mode *mode_E;    /* long double */
+ir_mode *mode_F;
+ir_mode *mode_D;
+ir_mode *mode_Q;
 
-ir_mode *mode_Bs;   /* integral values, signed and unsigned */
-ir_mode *mode_Bu;   /* 8 bit */
-ir_mode *mode_Hs;   /* 16 bit */
+ir_mode *mode_Bs;
+ir_mode *mode_Bu;
+ir_mode *mode_Hs;
 ir_mode *mode_Hu;
-ir_mode *mode_Is;   /* 32 bit */
+ir_mode *mode_Is;
 ir_mode *mode_Iu;
-ir_mode *mode_Ls;   /* 64 bit */
+ir_mode *mode_Ls;
 ir_mode *mode_Lu;
+ir_mode *mode_LLs;
+ir_mode *mode_LLu;
 
-ir_mode *mode_C;
-ir_mode *mode_U;
 ir_mode *mode_b;
 ir_mode *mode_P;
 
-/* machine specific modes */
-ir_mode *mode_P_mach;	/* machine specific pointer mode */
-
-/* * *
- * functions defined in irmode.h
- * * */
-
-/* JNI access functions */
-INLINE ir_mode *get_modeT(void) { ANNOUNCE(); return mode_T; }
-INLINE ir_mode *get_modeF(void) { ANNOUNCE(); return mode_F; }
-INLINE ir_mode *get_modeD(void) { ANNOUNCE(); return mode_D; }
-INLINE ir_mode *get_modeE(void) { ANNOUNCE(); return mode_E; }
-INLINE ir_mode *get_modeBs(void) { ANNOUNCE(); return mode_Bs; }
-INLINE ir_mode *get_modeBu(void) { ANNOUNCE(); return mode_Bu; }
-INLINE ir_mode *get_modeHs(void) { ANNOUNCE(); return mode_Hs; }
-INLINE ir_mode *get_modeHu(void) { ANNOUNCE(); return mode_Hu; }
-INLINE ir_mode *get_modeIs(void) { ANNOUNCE(); return mode_Is; }
-INLINE ir_mode *get_modeIu(void) { ANNOUNCE(); return mode_Iu; }
-INLINE ir_mode *get_modeLs(void) { ANNOUNCE(); return mode_Ls; }
-INLINE ir_mode *get_modeLu(void) { ANNOUNCE(); return mode_Lu; }
-INLINE ir_mode *get_modeC(void) { ANNOUNCE(); return mode_C; }
-INLINE ir_mode *get_modeU(void) { ANNOUNCE(); return mode_U; }
-INLINE ir_mode *get_modeb(void) { ANNOUNCE(); return mode_b; }
-INLINE ir_mode *get_modeP(void) { ANNOUNCE(); return mode_P; }
-INLINE ir_mode *get_modeX(void) { ANNOUNCE(); return mode_X; }
-INLINE ir_mode *get_modeM(void) { ANNOUNCE(); return mode_M; }
-INLINE ir_mode *get_modeBB(void) { ANNOUNCE(); return mode_BB; }
-INLINE ir_mode *get_modeANY(void) { ANNOUNCE(); return mode_ANY; }
-INLINE ir_mode *get_modeBAD(void) { ANNOUNCE(); return mode_BAD; }
-
-
-ir_mode *(get_modeP_mach)(void) {
-  ANNOUNCE();
-  return __get_modeP_mach();
-}
-
-void (set_modeP_mach)(ir_mode *p) {
-  ANNOUNCE();
-  __set_modeP_mach(p);
+ir_mode *mode_P_code;
+ir_mode *mode_P_data;
+
+ir_mode *get_modeT(void) { return mode_T; }
+ir_mode *get_modeF(void) { return mode_F; }
+ir_mode *get_modeD(void) { return mode_D; }
+ir_mode *get_modeQ(void) { return mode_Q; }
+ir_mode *get_modeBs(void) { return mode_Bs; }
+ir_mode *get_modeBu(void) { return mode_Bu; }
+ir_mode *get_modeHs(void) { return mode_Hs; }
+ir_mode *get_modeHu(void) { return mode_Hu; }
+ir_mode *get_modeIs(void) { return mode_Is; }
+ir_mode *get_modeIu(void) { return mode_Iu; }
+ir_mode *get_modeLs(void) { return mode_Ls; }
+ir_mode *get_modeLu(void) { return mode_Lu; }
+ir_mode *get_modeLLs(void){ return mode_LLs; }
+ir_mode *get_modeLLu(void){ return mode_LLu; }
+ir_mode *get_modeb(void) { return mode_b; }
+ir_mode *get_modeP(void) { return mode_P; }
+ir_mode *get_modeX(void) { return mode_X; }
+ir_mode *get_modeM(void) { return mode_M; }
+ir_mode *get_modeBB(void) { return mode_BB; }
+ir_mode *get_modeANY(void) { return mode_ANY; }
+ir_mode *get_modeBAD(void) { return mode_BAD; }
+
+
+ir_mode *(get_modeP_code)(void)
+{
+	return get_modeP_code_();
 }
 
-/**
- * Registers a new mode.
- *
- * @param new_mode  The new mode template.
- */
-static ir_mode *register_mode(const ir_mode* new_mode)
+ir_mode *(get_modeP_data)(void)
 {
-  ir_mode *mode = NULL;
-
-  ANNOUNCE();
-  assert(new_mode);
-
-  /* copy mode struct to modes array */
-  mode = (ir_mode*)obstack_copy(&modes, new_mode, sizeof(ir_mode));
-
-  mode->kind = k_ir_mode;
-  if (num_modes >= irm_max) mode->code = num_modes;
-  num_modes++;
-
-  set_mode_values(mode);
+	return get_modeP_data_();
+}
 
-  return mode;
+void set_modeP_code(ir_mode *p)
+{
+	assert(mode_is_reference(p));
+	mode_P_code = p;
 }
 
-/*
- * Creates a new mode.
- */
-ir_mode *new_ir_mode(const char *name, mode_sort sort, int bit_size, int sign,
-		     mode_arithmetic arithmetic, unsigned int modulo_shift )
-{
-  ir_mode mode_tmpl;
-  ir_mode *mode;
-
-  mode_tmpl.name         = new_id_from_str(name);
-  mode_tmpl.sort         = sort;
-  mode_tmpl.size         = bit_size;
-  mode_tmpl.sign         = sign ? 1 : 0;
-  mode_tmpl.modulo_shift = (mode_tmpl.sort == irms_int_number) ? modulo_shift : 0;
-  mode_tmpl.vector_elem  = 1;
-  mode_tmpl.arithmetic   = arithmetic;
-  mode_tmpl.link         = NULL;
-  mode_tmpl.tv_priv      = NULL;
-
-  mode = find_mode(&mode_tmpl);
-  if (mode)
-  {
-    return mode;
-  }
-
-  /* sanity checks */
-  switch (sort)
-  {
-    case irms_auxiliary:
-    case irms_control_flow:
-    case irms_memory:
-    case irms_internal_boolean:
-      assert(0 && "internal modes cannot be user defined");
-      return NULL;
-
-    case irms_float_number:
-    case irms_int_number:
-    case irms_reference:
-    case irms_character:
-      return register_mode(&mode_tmpl);
-  }
-  return NULL; /* to shut up gcc */
+void set_modeP_data(ir_mode *p)
+{
+	assert(mode_is_reference(p));
+	mode_P_data = p;
+	mode_P = p;
 }
 
 /*
- * Creates a new vector mode.
+ * Creates a new mode.
  */
-ir_mode *new_ir_vector_mode(const char *name, mode_sort sort, int bit_size, unsigned num_of_elem, int sign,
-		     mode_arithmetic arithmetic, unsigned int modulo_shift )
+static ir_mode *alloc_mode(const char *name, ir_mode_sort sort,
+                           ir_mode_arithmetic arithmetic, unsigned bit_size,
+                           int sign, unsigned modulo_shift)
 {
-  ir_mode mode_tmpl;
-  ir_mode *mode;
-
-  mode_tmpl.name         = new_id_from_str(name);
-  mode_tmpl.sort         = sort;
-  mode_tmpl.size         = bit_size * num_of_elem;
-  mode_tmpl.sign         = sign ? 1 : 0;
-  mode_tmpl.modulo_shift = (mode_tmpl.sort == irms_int_number) ? modulo_shift : 0;
-  mode_tmpl.vector_elem  = num_of_elem;
-  mode_tmpl.arithmetic   = arithmetic;
-  mode_tmpl.link         = NULL;
-  mode_tmpl.tv_priv      = NULL;
-
-  mode = find_mode(&mode_tmpl);
-  if (mode)
-    return mode;
-
-  if (num_of_elem <= 1) {
-    assert(0 && "vector modes should have at least 2 elements");
-    return NULL;
-  }
-
-  /* sanity checks */
-  switch (sort)
-  {
-    case irms_auxiliary:
-    case irms_control_flow:
-    case irms_memory:
-    case irms_internal_boolean:
-      assert(0 && "internal modes cannot be user defined");
-      return NULL;
+	ir_mode *mode_tmpl = OALLOCZ(&modes, ir_mode);
 
-    case irms_reference:
-    case irms_character:
-      assert(0 && "only integer and floating point modes can be vectorized");
-      return NULL;
-
-    case irms_float_number:
-      assert(0 && "not yet implemented");
-      return NULL;
-
-    case irms_int_number:
-      return register_mode(&mode_tmpl);
-  }
-  return NULL; /* to shut up gcc */
+	mode_tmpl->name         = new_id_from_str(name);
+	mode_tmpl->sort         = sort;
+	mode_tmpl->size         = bit_size;
+	mode_tmpl->sign         = sign ? 1 : 0;
+	mode_tmpl->modulo_shift = modulo_shift;
+	mode_tmpl->arithmetic   = arithmetic;
+	mode_tmpl->link         = NULL;
+	mode_tmpl->tv_priv      = NULL;
+	return mode_tmpl;
 }
 
-/* Functions for the direct access to all attributes od a ir_mode */
-modecode
-(get_mode_modecode)(const ir_mode *mode)
+static ir_mode *register_mode(ir_mode *mode)
 {
-  ANNOUNCE();
-  return __get_mode_modecode(mode);
+	/* does any of the existing modes have the same properties? */
+	ir_mode *old = find_mode(mode);
+	if (old != NULL) {
+		/* remove new mode from obstack */
+		obstack_free(&modes, mode);
+		return old;
+	}
+
+	mode->kind = k_ir_mode;
+	mode->type = new_type_primitive(mode);
+	ARR_APP1(ir_mode*, mode_list, mode);
+	set_mode_values(mode);
+	hook_new_mode(mode);
+	return mode;
+}
+
+ir_mode *new_int_mode(const char *name, ir_mode_arithmetic arithmetic,
+                      unsigned bit_size, int sign, unsigned modulo_shift)
+{
+	ir_mode *result = alloc_mode(name, irms_int_number, arithmetic, bit_size,
+	                             sign, modulo_shift);
+	return register_mode(result);
 }
 
-ident *
-(get_mode_ident)(const ir_mode *mode)
+ir_mode *new_reference_mode(const char *name, ir_mode_arithmetic arithmetic,
+                            unsigned bit_size, unsigned modulo_shift)
 {
-  ANNOUNCE();
-  return __get_mode_ident(mode);
+	ir_mode *result = alloc_mode(name, irms_reference, arithmetic, bit_size,
+	                             0, modulo_shift);
+	return register_mode(result);
 }
 
-const char *
-get_mode_name(const ir_mode *mode)
+ir_mode *new_float_mode(const char *name, ir_mode_arithmetic arithmetic,
+                        unsigned exponent_size, unsigned mantissa_size)
+{
+	bool     explicit_one = false;
+	unsigned bit_size     = exponent_size + mantissa_size + 1;
+	ir_mode *result;
+
+	if (arithmetic == irma_x86_extended_float) {
+		explicit_one = true;
+		bit_size++;
+	} else if (arithmetic != irma_ieee754) {
+		panic("Arithmetic %s invalid for float");
+	}
+	if (exponent_size >= 256)
+		panic("Exponents >= 256 bits not supported");
+	if (mantissa_size >= 256)
+		panic("Mantissa >= 256 bits not supported");
+
+	result = alloc_mode(name, irms_float_number, irma_x86_extended_float, bit_size, 1, 0);
+	result->float_desc.exponent_size = exponent_size;
+	result->float_desc.mantissa_size = mantissa_size;
+	result->float_desc.explicit_one  = explicit_one;
+	return register_mode(result);
+}
+
+ident *(get_mode_ident)(const ir_mode *mode)
 {
-  ANNOUNCE();
-  return get_id_str(mode->name);
+	return get_mode_ident_(mode);
 }
 
-mode_sort
-(get_mode_sort)(const ir_mode* mode)
+const char *get_mode_name(const ir_mode *mode)
 {
-  ANNOUNCE();
-  return __get_mode_sort(mode);
+	return get_id_str(mode->name);
 }
 
-int
-(get_mode_size_bits)(const ir_mode *mode)
+unsigned (get_mode_size_bits)(const ir_mode *mode)
 {
-  ANNOUNCE();
-  return __get_mode_size_bits(mode);
+	return get_mode_size_bits_(mode);
 }
 
-int
-(get_mode_size_bytes)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __get_mode_size_bytes(mode);
+unsigned (get_mode_size_bytes)(const ir_mode *mode)
+{
+	return get_mode_size_bytes_(mode);
 }
 
-int
-(get_mode_sign)(const ir_mode *mode)
+int (get_mode_sign)(const ir_mode *mode)
 {
-  ANNOUNCE();
-  return __get_mode_sign(mode);
+	return get_mode_sign_(mode);
 }
 
-int
-(get_mode_arithmetic)(const ir_mode *mode)
+ir_mode_arithmetic (get_mode_arithmetic)(const ir_mode *mode)
 {
-  ANNOUNCE();
-  return get_mode_arithmetic(mode);
+	return get_mode_arithmetic_(mode);
 }
 
 
-/* Attribute modulo shift specifies for modes of kind irms_int_number
- *  whether shift applies modulo to value of bits to shift.  Asserts
- *  if mode is not irms_int_number.
- */
-unsigned int
-(get_mode_modulo_shift)(const ir_mode *mode) {
-  return __get_mode_modulo_shift(mode);
+unsigned int (get_mode_modulo_shift)(const ir_mode *mode)
+{
+	return get_mode_modulo_shift_(mode);
 }
 
-unsigned int
-(get_mode_n_vector_elems)(const ir_mode *mode) {
-  return __get_mode_vector_elems(mode);
+void *(get_mode_link)(const ir_mode *mode)
+{
+	return get_mode_link_(mode);
 }
 
-void *
-(get_mode_link)(const ir_mode *mode)
+void (set_mode_link)(ir_mode *mode, void *l)
 {
-  ANNOUNCE();
-  return __get_mode_link(mode);
+	set_mode_link_(mode, l);
 }
 
-void
-(set_mode_link)(ir_mode *mode, void *l)
+ir_tarval *get_mode_min(ir_mode *mode)
 {
-  __set_mode_link(mode, l);
+	assert(mode);
+	assert(mode_is_data(mode));
+
+	return mode->min;
 }
 
-tarval *
-get_mode_min (ir_mode *mode)
+ir_tarval *get_mode_max(ir_mode *mode)
 {
-  ANNOUNCE();
-  assert(mode);
-  assert(get_mode_modecode(mode) < num_modes);
-  assert(mode_is_data(mode));
+	assert(mode);
+	assert(mode_is_data(mode));
 
-  return mode->min;
+	return mode->max;
 }
 
-tarval *
-get_mode_max (ir_mode *mode)
+ir_tarval *get_mode_null(ir_mode *mode)
 {
-  ANNOUNCE();
-  assert(mode);
-  assert(get_mode_modecode(mode) < num_modes);
-  assert(mode_is_data(mode));
+	assert(mode);
+	assert(mode_is_datab(mode));
 
-  return mode->max;
+	return mode->null;
 }
 
-tarval *
-get_mode_null (ir_mode *mode)
+ir_tarval *get_mode_one(ir_mode *mode)
 {
-  ANNOUNCE();
-  assert(mode);
-  assert(get_mode_modecode(mode) < num_modes);
-  assert(mode_is_data(mode));
+	assert(mode);
+	assert(mode_is_datab(mode));
 
-  return mode->null;
+	return mode->one;
 }
 
-tarval *
-get_mode_one (ir_mode *mode)
+ir_tarval *get_mode_minus_one(ir_mode *mode)
 {
-  ANNOUNCE();
-  assert(mode);
-  assert(get_mode_modecode(mode) < num_modes);
-  assert(mode_is_data(mode));
+	assert(mode);
+	assert(mode_is_data(mode));
 
-  return mode->one;
+	return mode->minus_one;
 }
 
-tarval *
-get_mode_infinite(ir_mode *mode)
+ir_tarval *get_mode_all_one(ir_mode *mode)
 {
-  ANNOUNCE();
-  assert(mode);
-  assert(get_mode_modecode(mode) < num_modes);
-  assert(mode_is_float(mode));
-
-  return get_tarval_plus_inf(mode);
+	assert(mode);
+	assert(mode_is_datab(mode));
+	return mode->all_one;
 }
 
-tarval *
-get_mode_NAN(ir_mode *mode)
+ir_tarval *get_mode_infinite(ir_mode *mode)
 {
-  ANNOUNCE();
-  assert(mode);
-  assert(get_mode_modecode(mode) < num_modes);
-  assert(mode_is_float(mode));
+	assert(mode);
+	assert(mode_is_float(mode));
 
-  return get_tarval_nan(mode);
+	return get_tarval_plus_inf(mode);
 }
 
-int
-is_mode (void *thing) {
-  if (get_kind(thing) == k_ir_mode)
-    return 1;
-  else
-    return 0;
-}
+ir_tarval *get_mode_NAN(ir_mode *mode)
+{
+	assert(mode);
+	assert(mode_is_float(mode));
 
-int
-(mode_is_signed)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_signed(mode);
+	return get_tarval_nan(mode);
 }
 
-int
-(mode_is_float)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_float(mode);
+int is_mode(const void *thing)
+{
+	return get_kind(thing) == k_ir_mode;
 }
 
-int
-(mode_is_int)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_int(mode);
+int (mode_is_signed)(const ir_mode *mode)
+{
+	return mode_is_signed_(mode);
 }
 
-int
-(mode_is_character)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_character(mode);
+int (mode_is_float)(const ir_mode *mode)
+{
+	return mode_is_float_(mode);
 }
 
-int
-(mode_is_reference)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_reference(mode);
+int (mode_is_int)(const ir_mode *mode)
+{
+	return mode_is_int_(mode);
 }
 
-int
-(mode_is_num)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_num(mode);
+int (mode_is_reference)(const ir_mode *mode)
+{
+	return mode_is_reference_(mode);
 }
 
-int
-(mode_is_numP)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_numP(mode);
+int (mode_is_num)(const ir_mode *mode)
+{
+	return mode_is_num_(mode);
 }
 
-int
-(mode_is_data)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_data(mode);
+int (mode_is_data)(const ir_mode *mode)
+{
+	return mode_is_data_(mode);
 }
 
-int
-(mode_is_datab)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_datab(mode);
+int (mode_is_datab)(const ir_mode *mode)
+{
+	return mode_is_datab_(mode);
 }
 
-int
-(mode_is_dataM)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_dataM(mode);
+int (mode_is_dataM)(const ir_mode *mode)
+{
+	return mode_is_dataM_(mode);
 }
 
-int
-(mode_is_float_vector)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_float_vector(mode);
+unsigned (get_mode_mantissa_size)(const ir_mode *mode)
+{
+	return get_mode_mantissa_size_(mode);
 }
 
-int
-(mode_is_int_vector)(const ir_mode *mode) {
-  ANNOUNCE();
-  return __mode_is_int_vector(mode);
+unsigned (get_mode_exponent_size)(const ir_mode *mode)
+{
+	return get_mode_exponent_size_(mode);
 }
 
-/* Returns true if sm can be converted to lm without loss. */
-int
-smaller_mode(const ir_mode *sm, const ir_mode *lm)
+int smaller_mode(const ir_mode *sm, const ir_mode *lm)
 {
-  int sm_bits, lm_bits;
-
-  ANNOUNCE();
-  assert(sm);
-  assert(lm);
-
-  if (sm == lm) return 1;
-
-  sm_bits = get_mode_size_bits(sm);
-  lm_bits = get_mode_size_bits(lm);
-
-  switch(get_mode_sort(sm))
-  {
-    case irms_int_number:
-      switch(get_mode_sort(lm))
-      {
-        case irms_int_number:
-          /* integers are convertable if
-           *   - both have the same sign and lm is the larger one
-           *   - lm is the signed one and is at least two bits larger
-           *     (one for the sign, one for the highest bit of sm)
-	   *   - sm & lm are two_complement and lm has greater or equal number of bits
-           */
-          if (   get_mode_arithmetic(sm) == get_mode_arithmetic(lm)
-	      && get_mode_arithmetic(sm) == irma_twos_complement) {
-	    return lm_bits >= sm_bits;
-	  }
-          else if (mode_is_signed(sm))
-          {
-            if ( mode_is_signed(lm) && (lm_bits >= sm_bits) )
-              return 1;
-          }
-          else if (mode_is_signed(lm))
-          {
-            if (lm_bits > sm_bits + 1)
-              return 1;
-          }
-          else if (lm_bits >= sm_bits)
-          {
-            return 1;
-          }
-          break;
-
-        case irms_float_number:
-          /* int to float works if the float is large enough */
-          return 0;
-
-        default:
-          break;
-      }
-      break;
-
-    case irms_float_number:
-      if (get_mode_arithmetic(sm) == get_mode_arithmetic(lm)) {
-        if ( (get_mode_sort(lm) == irms_float_number)
-           && (get_mode_size_bits(lm) >= get_mode_size_bits(sm)) )
-          return 1;
-      }
-      break;
-
-    case irms_reference:
-       /* do exist machines out there with different pointer lenghts ?*/
-      return 0;
-
-    default:
-      break;
-  }
-
-  /* else */
-  return 0;
+	int sm_bits, lm_bits;
+
+	assert(sm);
+	assert(lm);
+
+	if (sm == lm) return 1;
+
+	sm_bits = get_mode_size_bits(sm);
+	lm_bits = get_mode_size_bits(lm);
+
+	switch (get_mode_sort(sm)) {
+	case irms_int_number:
+		switch (get_mode_sort(lm)) {
+		case irms_int_number:
+			if (get_mode_arithmetic(sm) != get_mode_arithmetic(lm))
+				return 0;
+
+			/* only two complement implemented */
+			assert(get_mode_arithmetic(sm) == irma_twos_complement);
+
+			/* integers are convertable if
+			 *   - both have the same sign and lm is the larger one
+			 *   - lm is the signed one and is at least two bits larger
+			 *     (one for the sign, one for the highest bit of sm)
+			 *   - sm & lm are two_complement and lm has greater or equal number of bits
+			 */
+			if (mode_is_signed(sm)) {
+				if (!mode_is_signed(lm))
+					return 0;
+				return sm_bits <= lm_bits;
+			} else {
+				if (mode_is_signed(lm)) {
+					return sm_bits < lm_bits;
+				}
+				return sm_bits <= lm_bits;
+			}
+
+		case irms_float_number:
+			/* int to float works if the float is large enough */
+			return 0;
+
+		default:
+			break;
+		}
+		break;
+
+	case irms_float_number:
+		if (get_mode_arithmetic(sm) == get_mode_arithmetic(lm)) {
+			if ( (get_mode_sort(lm) == irms_float_number)
+				&& (get_mode_size_bits(lm) >= get_mode_size_bits(sm)) )
+				return 1;
+		}
+		break;
+
+	case irms_reference:
+		/* do exist machines out there with different pointer lengths ?*/
+		return 0;
+
+	case irms_internal_boolean:
+		return mode_is_int(lm);
+
+	default:
+		break;
+	}
+
+	/* else */
+	return 0;
+}
+
+int values_in_mode(const ir_mode *sm, const ir_mode *lm)
+{
+	if (sm == lm)
+		return true;
+
+	if (sm == mode_b)
+		return mode_is_int(lm) || mode_is_float(lm);
+
+	ir_mode_arithmetic larith = get_mode_arithmetic(lm);
+	ir_mode_arithmetic sarith = get_mode_arithmetic(sm);
+	switch (larith) {
+	case irma_x86_extended_float:
+	case irma_ieee754:
+		if (sarith == irma_ieee754 || sarith == irma_x86_extended_float) {
+			return get_mode_size_bits(sm) <= get_mode_size_bits(lm);
+		} else if (sarith == irma_twos_complement) {
+			unsigned int_mantissa   = get_mode_size_bits(sm) - (mode_is_signed(sm) ? 1 : 0);
+			unsigned float_mantissa = get_mode_mantissa_size(lm) + 1;
+			return int_mantissa <= float_mantissa;
+		}
+		break;
+	case irma_twos_complement:
+		if (sarith == irma_twos_complement) {
+			return get_mode_size_bits(sm) <= get_mode_size_bits(lm);
+		}
+		break;
+	case irma_none:
+		break;
+	}
+	return false;
+}
+
+ir_mode *get_reference_mode_signed_eq(ir_mode *mode)
+{
+	assert(mode_is_reference(mode));
+	return mode->eq_signed;
 }
 
-/* initialization, build the default modes */
-void
-init_mode (void)
+void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode)
 {
-  ir_mode newmode;
-  ANNOUNCE();
-  /* init flexible array */
-
-  obstack_init(&modes);
-
-  num_modes  =  0;
-  /* initialize predefined modes */
-
-  /* Internal Modes */
-  newmode.arithmetic   = irma_none;
-  newmode.size         = 0;
-  newmode.sign         = 0;
-  newmode.modulo_shift = 0;
-  newmode.vector_elem  = 0;
-  newmode.link         = NULL;
-  newmode.tv_priv      = NULL;
-
-  /* Control Flow Modes*/
-  newmode.sort    = irms_control_flow;
-
-  /* Basic Block */
-  newmode.name    = new_id_from_chars("BB", 2);
-  newmode.code    = irm_BB;
-
-  mode_BB = register_mode(&newmode);
-
-/* eXecution */
-  newmode.name    = new_id_from_chars("X", 1);
-  newmode.code    = irm_X;
-
-  mode_X = register_mode(&newmode);
-
-  /* Memory Modes */
-  newmode.sort    = irms_memory;
-
-  /* Memory */
-  newmode.name    = new_id_from_chars("M", 1);
-  newmode.code    = irm_M;
-
-  mode_M = register_mode(&newmode);
-
-  /* Auxiliary Modes */
-  newmode.sort    = irms_auxiliary,
-
-  /* Tuple */
-  newmode.name    = new_id_from_chars("T", 1);
-  newmode.code    = irm_T;
-
-  mode_T = register_mode(&newmode);
-
-  /* ANY */
-  newmode.name    = new_id_from_chars("ANY", 3);
-  newmode.code    = irm_ANY;
-
-  mode_ANY = register_mode(&newmode);
-
-  /* BAD */
-  newmode.name    = new_id_from_chars("BAD", 3);
-  newmode.code    = irm_BAD;
-
-  mode_BAD = register_mode(&newmode);
-
-  /* Internal Boolean Modes */
-  newmode.sort    = irms_internal_boolean;
-
-  /* boolean */
-  newmode.name    = new_id_from_chars("b", 1);
-  newmode.code    = irm_b;
-
-  mode_b = register_mode(&newmode);
-
-/* Data Modes */
-  newmode.vector_elem = 1;
-
-  /* Float Number Modes */
-  newmode.sort       = irms_float_number;
-  newmode.arithmetic = irma_ieee754;
-
-  /* float */
-  newmode.name    = new_id_from_chars("F", 1);
-  newmode.code    = irm_F;
-  newmode.sign    = 1;
-  newmode.size    = 32;
-
-  mode_F = register_mode(&newmode);
-
-  /* double */
-  newmode.name    = new_id_from_chars("D", 1);
-  newmode.code    = irm_D;
-  newmode.sign    = 1;
-  newmode.size    = 64;
-
-  mode_D = register_mode(&newmode);
-
-  /* extended */
-  newmode.name    = new_id_from_chars("E", 1);
-  newmode.code    = irm_E;
-  newmode.sign    = 1;
-  newmode.size    = 80;
-
-  mode_E = register_mode(&newmode);
-
-  /* Integer Number Modes */
-  newmode.sort         = irms_int_number;
-  newmode.arithmetic   = irma_twos_complement;
-
-  /* signed byte */
-  newmode.name         = new_id_from_chars("Bs", 2);
-  newmode.code         = irm_Bs;
-  newmode.sign         = 1;
-  newmode.size         = 8;
-  newmode.modulo_shift = 32;
-
-  mode_Bs = register_mode(&newmode);
-
-  /* unsigned byte */
-  newmode.name         = new_id_from_chars("Bu", 2);
-  newmode.code         = irm_Bu;
-  newmode.arithmetic   = irma_twos_complement;
-  newmode.sign         = 0;
-  newmode.size         = 8;
-  newmode.modulo_shift = 32;
-
-  mode_Bu = register_mode(&newmode);
-
-  /* signed short integer */
-  newmode.name         = new_id_from_chars("Hs", 2);
-  newmode.code         = irm_Hs;
-  newmode.sign         = 1;
-  newmode.size         = 16;
-  newmode.modulo_shift = 32;
-
-  mode_Hs = register_mode(&newmode);
-
-  /* unsigned short integer */
-  newmode.name         = new_id_from_chars("Hu", 2);
-  newmode.code         = irm_Hu;
-  newmode.sign         = 0;
-  newmode.size         = 16;
-  newmode.modulo_shift = 32;
-
-  mode_Hu = register_mode(&newmode);
-
-  /* signed integer */
-  newmode.name         = new_id_from_chars("Is", 2);
-  newmode.code         = irm_Is;
-  newmode.sign         = 1;
-  newmode.size         = 32;
-  newmode.modulo_shift = 32;
-
-  mode_Is = register_mode(&newmode);
-
-  /* unsigned integer */
-  newmode.name         = new_id_from_chars("Iu", 2);
-  newmode.code         = irm_Iu;
-  newmode.sign         = 0;
-  newmode.size         = 32;
-  newmode.modulo_shift = 32;
-
-  mode_Iu = register_mode(&newmode);
-
-  /* signed long integer */
-  newmode.name         = new_id_from_chars("Ls", 2);
-  newmode.code         = irm_Ls;
-  newmode.sign         = 1;
-  newmode.size         = 64;
-  newmode.modulo_shift = 64;
+	assert(mode_is_reference(ref_mode));
+	assert(mode_is_int(int_mode));
+	ref_mode->eq_signed = int_mode;
+}
 
-  mode_Ls = register_mode(&newmode);
+ir_mode *get_reference_mode_unsigned_eq(ir_mode *mode)
+{
+	assert(mode_is_reference(mode));
+	return mode->eq_unsigned;
+}
 
-  /* unsigned long integer */
-  newmode.name         = new_id_from_chars("Lu", 2);
-  newmode.code         = irm_Lu;
-  newmode.sign         = 0;
-  newmode.size         = 64;
-  newmode.modulo_shift = 64;
+void set_reference_mode_unsigned_eq(ir_mode *ref_mode, ir_mode *int_mode)
+{
+	assert(mode_is_reference(ref_mode));
+	assert(mode_is_int(int_mode));
+	ref_mode->eq_unsigned = int_mode;
+}
 
-  mode_Lu = register_mode(&newmode);
-
-  /* Character Modes */
-  newmode.sort         = irms_character;
-  newmode.arithmetic   = irma_none;
+static ir_mode *new_internal_mode(const char *name, ir_mode_sort sort)
+{
+	ir_mode *mode = alloc_mode(name, sort, irma_none, 0, 0, 0);
+	return register_mode(mode);
+}
 
-  /* Character */
-  newmode.name         = new_id_from_chars("C", 1);
-  newmode.code         = irm_C;
-  newmode.sign         = 0;
-  newmode.size         = 8;
-  newmode.modulo_shift = 32;
+void init_mode(void)
+{
+	obstack_init(&modes);
+	mode_list = NEW_ARR_F(ir_mode*, 0);
+
+	/* initialize predefined modes */
+	mode_BB  = new_internal_mode("BB",  irms_block);
+	mode_X   = new_internal_mode("X",   irms_control_flow);
+	mode_M   = new_internal_mode("M",   irms_memory);
+	mode_T   = new_internal_mode("T",   irms_tuple);
+	mode_ANY = new_internal_mode("ANY", irms_any);
+	mode_BAD = new_internal_mode("BAD", irms_bad);
+	mode_b   = new_internal_mode("b",   irms_internal_boolean);
+
+	mode_F   = new_float_mode("F", irma_ieee754,  8, 23);
+	mode_D   = new_float_mode("D", irma_ieee754, 11, 52);
+	mode_Q   = new_float_mode("Q", irma_ieee754, 15, 112);
+
+	mode_Bs  = new_int_mode("Bs",  irma_twos_complement, 8,   1, 32);
+	mode_Bu  = new_int_mode("Bu",  irma_twos_complement, 8,   0, 32);
+	mode_Hs  = new_int_mode("Hs",  irma_twos_complement, 16,  1, 32);
+	mode_Hu  = new_int_mode("Hu",  irma_twos_complement, 16,  0, 32);
+	mode_Is  = new_int_mode("Is",  irma_twos_complement, 32,  1, 32);
+	mode_Iu  = new_int_mode("Iu",  irma_twos_complement, 32,  0, 32);
+	mode_Ls  = new_int_mode("Ls",  irma_twos_complement, 64,  1, 64);
+	mode_Lu  = new_int_mode("Lu",  irma_twos_complement, 64,  0, 64);
+	mode_LLs = new_int_mode("LLs", irma_twos_complement, 128, 1, 128);
+	mode_LLu = new_int_mode("LLu", irma_twos_complement, 128, 0, 128);
+
+	mode_P   = new_reference_mode("P", irma_twos_complement, 32, 32);
+	set_reference_mode_signed_eq(mode_P, mode_Is);
+	set_reference_mode_unsigned_eq(mode_P, mode_Iu);
+
+	/* set the machine specific modes to the predefined ones */
+	mode_P_code = mode_P;
+	mode_P_data = mode_P;
+}
+
+ir_mode *find_unsigned_mode(const ir_mode *mode)
+{
+	ir_mode n = *mode;
 
-  mode_C = register_mode(&newmode);
+	/* allowed for reference mode */
+	if (mode->sort == irms_reference)
+		n.sort = irms_int_number;
 
-  /* Unicode character */
-  newmode.name         = new_id_from_chars("U", 1);
-  newmode.code         = irm_U;
-  newmode.sign         = 0;
-  newmode.size         = 16;
-  newmode.modulo_shift = 32;
+	assert(n.sort == irms_int_number);
+	n.sign = 0;
+	return find_mode(&n);
+}
 
-  mode_U = register_mode(&newmode);
+ir_mode *find_signed_mode(const ir_mode *mode)
+{
+	ir_mode n = *mode;
 
-  /* Reference Modes */
-  newmode.sort    = irms_reference;
-  newmode.arithmetic = irma_twos_complement;
+	assert(mode->sort == irms_int_number);
+	n.sign = 1;
+	return find_mode(&n);
+}
 
-  /* pointer */
-  newmode.name         = new_id_from_chars("P", 1);
-  newmode.code         = irm_P;
-  newmode.sign         = 0;
-  newmode.size         = 32;
-  newmode.modulo_shift = 0;
+ir_mode *find_double_bits_int_mode(const ir_mode *mode)
+{
+	ir_mode n = *mode;
 
-  mode_P = register_mode(&newmode);
+	assert(mode->sort == irms_int_number && mode->arithmetic == irma_twos_complement);
 
-  /* set the machine specific modes to the predifined ones */
-  mode_P_mach = mode_P;
+	n.size = 2*mode->size;
+	return find_mode(&n);
 }
 
-/* find a signed mode for an unsigned integer mode */
-ir_mode *find_unsigned_mode(const ir_mode *mode) {
-  ir_mode n = *mode;
-
-  if (mode->sort != irms_int_number);
-  n.sign = 0;
-  return find_mode(&n);
+int mode_honor_signed_zeros(const ir_mode *mode)
+{
+	/* for floating point, we know that IEEE 754 has +0 and -0,
+	 * but always handles it identical.
+	 */
+	return
+		mode->sort == irms_float_number &&
+		mode->arithmetic != irma_ieee754;
 }
 
-/* find an unsigned mode for a signed integer mode */
-ir_mode *find_signed_mode(const ir_mode *mode) {
-  ir_mode n = *mode;
+int mode_overflow_on_unary_Minus(const ir_mode *mode)
+{
+	if (mode->sort == irms_float_number)
+		return mode->arithmetic == irma_ieee754 ? 0 : 1;
+	return 1;
+}
 
-  assert(mode->sort == irms_int_number);
-  n.sign = 1;
-  return find_mode(&n);
+int mode_wrap_around(const ir_mode *mode)
+{
+	/* FIXME: better would be an extra mode property */
+	return mode_is_int(mode);
 }
 
-/* finds a integer mode with 2*n bits for an integer mode with n bits. */
-ir_mode *find_double_bits_int_mode(const ir_mode *mode) {
-  ir_mode n = *mode;
+int is_reinterpret_cast(const ir_mode *src, const ir_mode *dst)
+{
+	ir_mode_arithmetic ma;
 
-  assert(mode->sort == irms_int_number && mode->arithmetic == irma_twos_complement);
+	if (src == dst)
+		return 1;
+	if (get_mode_size_bits(src) != get_mode_size_bits(dst))
+		return 0;
+	ma = get_mode_arithmetic(src);
+	if (ma != get_mode_arithmetic(dst))
+		return 0;
 
-  n.size = 2*mode->size;
-  return find_mode(&n);
+	return ma == irma_twos_complement;
 }
 
-void finish_mode(void) {
-  obstack_free(&modes, 0);
-
-  mode_T = NULL;
-  mode_X = NULL;
-  mode_M = NULL;
-  mode_BB = NULL;
-  mode_ANY = NULL;
-  mode_BAD = NULL;
-
-  mode_F = NULL;
-  mode_D = NULL;
-  mode_E = NULL;
+ir_type *(get_type_for_mode) (const ir_mode *mode)
+{
+	return get_type_for_mode_(mode);
+}
 
-  mode_Bs = NULL;
-  mode_Bu = NULL;
-  mode_Hs = NULL;
-  mode_Hu = NULL;
-  mode_Is = NULL;
-  mode_Iu = NULL;
-  mode_Ls = NULL;
-  mode_Lu = NULL;
+size_t ir_get_n_modes(void)
+{
+	return ARR_LEN(mode_list);
+}
 
-  mode_C = NULL;
-  mode_U = NULL;
-  mode_b = NULL;
-  mode_P = NULL;
+ir_mode *ir_get_mode(size_t num)
+{
+	assert(num < ARR_LEN(mode_list));
+	return mode_list[num];
+}
 
-  mode_P_mach = NULL;
+void finish_mode(void)
+{
+	obstack_free(&modes, 0);
+	DEL_ARR_F(mode_list);
+
+	mode_T   = NULL;
+	mode_X   = NULL;
+	mode_M   = NULL;
+	mode_BB  = NULL;
+	mode_ANY = NULL;
+	mode_BAD = NULL;
+
+	mode_F   = NULL;
+	mode_D   = NULL;
+
+	mode_Bs  = NULL;
+	mode_Bu  = NULL;
+	mode_Hs  = NULL;
+	mode_Hu  = NULL;
+	mode_Is  = NULL;
+	mode_Iu  = NULL;
+	mode_Ls  = NULL;
+	mode_Lu  = NULL;
+
+	mode_b   = NULL;
+
+	mode_P      = NULL;
+	mode_P_code = NULL;
+	mode_P_data = NULL;
 }