X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firmode.c;h=b441d5717d87712a8058976c84921163dcbb6009;hb=2402e5c731667b4cf89feac723aacad1a780bf14;hp=03afd220e087d579ed0f504f9c2cc3dcb1fe7956;hpb=e3e22fa6f927847099c0bff62457003aa81f2518;p=libfirm

diff --git a/ir/ir/irmode.c b/ir/ir/irmode.c
index 03afd220e..b441d5717 100644
--- a/ir/ir/irmode.c
+++ b/ir/ir/irmode.c
@@ -1,509 +1,926 @@
-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-*/
-
-/* $Id$ */
-
+/*
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+/**
+ * @file
+ * @brief    Data modes of operations.
+ * @author   Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Mathias Heil
+ * @version  $Id$
+ */
 #ifdef HAVE_CONFIG_H
-# include <config.h>
+# include "config.h"
+#endif
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+# include <string.h>
 #endif
 
-# include "irmode_t.h"
-# include <malloc.h>
 # include <stddef.h>
-# include "tv.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"
+
+/* * *
+ * local values
+ * * */
+
+
+/** dynamic array to hold all modes */
+static struct obstack modes;
+
+/** number of defined modes */
+static int num_modes = 0;
+
+static ir_mode **mode_list;
+
+/* * *
+ * 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;
+}
+
+/**
+ * searches the modes obstack for the given mode and returns
+ * a pointer on an equal mode already in the array, NULL if
+ * none found
+ */
+static ir_mode *find_mode(const ir_mode *m) {
+	unsigned len = ARR_LEN(mode_list);
+	unsigned i;
+
+	for(i = 0; i < len; ++i) {
+		ir_mode *n = mode_list[i];
+		if (modes_are_equal(n, m))
+			return n;
+	}
+
+	return NULL;
+}
+
+/**
+ * sets special values of modes
+ */
+static void set_mode_values(ir_mode* mode) {
+	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_auxiliary:
+	case irms_memory:
+	case irms_control_flow:
+		mode->min  = tarval_bad;
+		mode->max  = tarval_bad;
+		mode->null = tarval_bad;
+		mode->one  = tarval_bad;
+		mode->minus_one = tarval_bad;
+		break;
+	}
+}
+
+/* * *
+ * globals defined in irmode.h
+ * * */
+
+/* --- Predefined modes --- */
+
+/* FIRM internal modes: */
 ir_mode *mode_T;
-ir_mode *mode_f;
-ir_mode *mode_d;
-ir_mode *mode_c;
-ir_mode *mode_C;
-ir_mode *mode_h;
-ir_mode *mode_H;
-ir_mode *mode_i;
-ir_mode *mode_I;
-ir_mode *mode_l;
-ir_mode *mode_L;
-ir_mode *mode_B;
-ir_mode *mode_b;
-ir_mode *mode_p;
-ir_mode *mode_s;
-ir_mode *mode_S;
 ir_mode *mode_X;
 ir_mode *mode_M;
-ir_mode *mode_R;
-ir_mode *mode_Z;
+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_Bs;   /* integral values, signed and unsigned */
+ir_mode *mode_Bu;   /* 8 bit */
+ir_mode *mode_Hs;   /* 16 bit */
+ir_mode *mode_Hu;
+ir_mode *mode_Is;   /* 32 bit */
+ir_mode *mode_Iu;
+ir_mode *mode_Ls;   /* 64 bit */
+ir_mode *mode_Lu;
+ir_mode *mode_LLs;  /* 128 bit */
+ir_mode *mode_LLu;
 
-void
-init_mode (void)
-{
-  /* allocate all modes. We need to memset them as tarval_vrfy
-     reads fields before they are initialized: It compares to
-     min/max when tarvals for min/max are allocated!  */
-  mode_T = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_T, 0, sizeof(ir_mode));
-  mode_f = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_f, 0, sizeof(ir_mode));
-  mode_d = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_d, 0, sizeof(ir_mode));
-  mode_c = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_c, 0, sizeof(ir_mode));
-  mode_C = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_C, 0, sizeof(ir_mode));
-  mode_h = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_h, 0, sizeof(ir_mode));
-  mode_H = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_H, 0, sizeof(ir_mode));
-  mode_i = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_i, 0, sizeof(ir_mode));
-  mode_I = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_I, 0, sizeof(ir_mode));
-  mode_l = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_l, 0, sizeof(ir_mode));
-  mode_L = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_L, 0, sizeof(ir_mode));
-  mode_B = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_B, 0, sizeof(ir_mode));
-  mode_b = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_b, 0, sizeof(ir_mode));
-  mode_p = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_p, 0, sizeof(ir_mode));
-  mode_s = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_s, 0, sizeof(ir_mode));
-  mode_S = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_S, 0, sizeof(ir_mode));
-  mode_X = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_X, 0, sizeof(ir_mode));
-  mode_M = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_M, 0, sizeof(ir_mode));
-  mode_R = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_R, 0, sizeof(ir_mode));
-  mode_Z = (ir_mode *) malloc (sizeof (ir_mode)); memset(mode_Z, 0, sizeof(ir_mode));
-
-  mode_T->code = irm_T;
-  mode_f->code = irm_f;
-  mode_d->code = irm_d;
-  mode_c->code = irm_c;
-  mode_C->code = irm_C;
-  mode_h->code = irm_h;
-  mode_H->code = irm_H;
-  mode_i->code = irm_i;
-  mode_I->code = irm_I;
-  mode_l->code = irm_l;
-  mode_L->code = irm_L;
-  mode_B->code = irm_B;
-  mode_b->code = irm_b;
-  mode_p->code = irm_p;
-  mode_s->code = irm_s;
-  mode_S->code = irm_S;
-  mode_X->code = irm_X;
-  mode_M->code = irm_M;
-  mode_R->code = irm_R;
-  mode_Z->code = irm_Z;
-
-  /* initialize all modes */
-
-  mode_T->name = id_from_str ("T", 1);
-  mode_T->fsigned = 0;
-  mode_T->ffloat = 0;
-
-  /* float */
-  mode_f->name = id_from_str ("f", 1);
-  mode_f->fsigned = 1;
-  mode_f->ffloat = 1;
-  mode_f->ld_align = 4;
-  mode_f->size = 4;
-
-  /* double */
-  mode_d->name = id_from_str ("d", 1);
-  mode_d->fsigned = 1;
-  mode_d->ffloat = 1;
-  mode_d->ld_align = 4;
-  mode_d->size = 8;
-
-  /* signed char */
-  mode_c->name = id_from_str ("c", 1);
-  mode_c->fsigned = 1;
-  mode_c->ffloat = 0;
-  mode_c->ld_align = 1;
-  mode_c->size = 1;
-  mode_c->min = tarval_from_long (mode_l, 0xffffff80);
-  mode_c->max = tarval_from_long (mode_l, 0x0000007f);
-  mode_c->null = tarval_from_long (mode_c, 0);
-
-  /* unsigned char */
-  mode_C->name = id_from_str ("C", 1);
-  mode_C->fsigned = 0;
-  mode_C->ffloat = 0;
-  mode_C->ld_align = 1;
-  mode_C->size = 1;
-  mode_C->min = tarval_from_long (mode_L, 0x00000000);
-  mode_C->max = tarval_from_long (mode_L, 0x000000ff);
-  mode_C->null = tarval_from_long (mode_C, 0);
-
-  /* signed short integer */
-  mode_h->name = id_from_str ("h", 1);
-  mode_h->fsigned = 1;
-  mode_h->ffloat = 0;
-  mode_h->ld_align = 2;
-  mode_h->size = 2;
-  mode_h->min = tarval_from_long (mode_l, 0xffff8000);
-  mode_h->max = tarval_from_long (mode_l, 0x00007fff);
-  mode_h->null = tarval_from_long (mode_h, 0);
-
-  /* unsigened short integer */
-  mode_H->name = id_from_str ("H", 1);
-  mode_H->fsigned = 0;
-  mode_H->ffloat = 0;
-  mode_H->ld_align = 2;
-  mode_H->size = 2;
-  mode_H->min = tarval_from_long (mode_L, 0x00000000);
-  mode_H->max = tarval_from_long (mode_L, 0x0000ffff);
-  mode_H->null = tarval_from_long (mode_H, 0);
-
-  /* signed integer */
-  mode_i->name = id_from_str ("i", 1);
-  mode_i->fsigned = 1;
-  mode_i->ffloat = 0;
-  mode_i->ld_align = 4;
-  mode_i->size = 4;
-  mode_i->min = tarval_from_long (mode_l, 0x80000000);
-  mode_i->max = tarval_from_long (mode_l, 0x7fffffff);
-  mode_i->null = tarval_from_long (mode_i, 0);
-
-  /* unsigned integer */
-  mode_I->name = id_from_str ("I", 1);
-  mode_I->fsigned = 0;
-  mode_I->ffloat = 0;
-  mode_I->ld_align = 4;
-  mode_I->size = 4;
-  mode_I->min = tarval_from_long (mode_L, 0x00000000);
-  mode_I->max = tarval_from_long (mode_L, 0xffffffff);
-  mode_I->null = tarval_from_long (mode_I, 0);
-
-  /* signed long integer */
-  mode_l->name = id_from_str ("l", 1);
-  mode_l->fsigned = 1;
-  mode_l->ffloat = 0;
-  mode_l->ld_align = 4;
-  mode_l->size = 4;
-  mode_l->min = tarval_from_long (mode_l, 0x80000000);
-  mode_l->max = tarval_from_long (mode_l, 0x7fffffff);
-  mode_I->null = tarval_from_long (mode_l, 0);
-
-  /* unsigned long integer */
-  mode_L->name = id_from_str ("L", 1);
-  mode_L->fsigned = 0;
-  mode_L->ffloat = 0;
-  mode_L->ld_align = 4;
-  mode_L->size = 4;
-  mode_L->min = tarval_from_long (mode_L, 0x00000000);
-  mode_L->max = tarval_from_long (mode_L, 0xffffffff);
-  mode_L->null = tarval_from_long (mode_L, 0);
-
-  /* universal bits */
-  mode_B->name = id_from_str ("B", 1);
-  mode_B->fsigned = 0;
-  mode_B->ffloat = 0;
-
-  /* boolean */
-  mode_b->name = id_from_str ("b", 1);
-  mode_b->fsigned = 0;
-  mode_b->ffloat = 0;
-
-  /* pointer */
-  mode_p->name = id_from_str ("p", 1);
-  mode_p->fsigned = 0;
-  mode_p->ffloat = 0;
-  mode_p->ld_align = 4;
-  mode_p->size = 4;
-  mode_p->min = tarval_from_long (mode_L, 0x00000000);
-  mode_p->max = tarval_from_long (mode_L, 0xffffffff);
-  mode_p->null = tarval_from_long (mode_p, 0);
-
-  mode_s->name = id_from_str ("s", 1);
-  mode_s->fsigned = 0;
-  mode_s->ffloat = 0;
-
-  mode_S->name = id_from_str ("S", 1);
-  mode_S->fsigned = 0;
-  mode_S->ffloat = 0;
-
-  /* Execution */
-  mode_X->name = id_from_str ("X", 1);
-  mode_X->fsigned = 0;
-  mode_X->ffloat = 0;
-
-  /* Memory */
-  mode_M->name = id_from_str ("M", 1);
-  mode_M->fsigned = 0;
-  mode_M->ffloat = 0;
-
-  mode_R->name = id_from_str ("R", 1);
-  mode_R->fsigned = 0;
-  mode_R->ffloat = 0;
-
-  mode_Z->name = id_from_str ("Z", 1);
-  mode_Z->fsigned = 1;
-  mode_Z->ffloat = 0;
-}
-
-/* Functions for the direct access to all attributes od a ir_mode */
-
-modecode
-get_mode_modecode (ir_mode *mode)
-{
-  return mode->code;
+ir_mode *mode_b;
+ir_mode *mode_P;
+
+/* machine specific modes */
+ir_mode *mode_P_code;   /**< machine specific pointer mode for code addresses */
+ir_mode *mode_P_data;   /**< machine specific pointer mode for data addresses */
+
+/* * *
+ * functions defined in irmode.h
+ * * */
+
+/* JNI access functions */
+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_modeE(void) { return mode_E; }
+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();
 }
 
-/*
-inline void
-set_mode_modecode (ir_mode *mode, modecode code)
-{
-  mode->code = code;
+ir_mode *(get_modeP_data)(void) {
+	return _get_modeP_data();
 }
-*/
 
-ident *
-get_mode_ident (ir_mode *mode)
-{
-  return mode->name;
+void set_modeP_code(ir_mode *p) {
+	assert(mode_is_reference(p));
+	mode_P_code = p;
 }
 
-/*
-inline void
-set_mode_ident (ir_mode *mode, ident *name)
-{
-  mode->name = name;
+void set_modeP_data(ir_mode *p) {
+	assert(mode_is_reference(p));
+	mode_P_data = p;
 }
-*/
 
-inline const char *
-get_mode_name       (ir_mode *mode) {
-  assert(mode);
-  return id_to_str(mode->name);
+/**
+ * Registers a new mode.
+ *
+ * @param new_mode  The new mode template.
+ */
+static ir_mode *register_mode(const ir_mode *new_mode) {
+	ir_mode *mode = NULL;
+
+	assert(new_mode);
+
+	/* copy mode struct to modes array */
+	mode = (ir_mode *)obstack_copy(&modes, new_mode, sizeof(*mode));
+	ARR_APP1(ir_mode*, mode_list, mode);
+
+	mode->kind = k_ir_mode;
+	if (num_modes >= irm_max)  {
+		mode->code = num_modes;
+	}
+	num_modes++;
+
+	/* add the new mode to the irp list of modes */
+	add_irp_mode(mode);
+
+	set_mode_values(mode);
+
+	hook_new_mode(new_mode, mode);
+	return mode;
 }
-/* void  set_mode_name       (ir_mode *mode, char *name);    */
 
-int
-get_mode_size (ir_mode *mode)
+/*
+ * 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)
 {
-  return mode->size;
+	ir_mode mode_tmpl;
+	ir_mode *mode = NULL;
+
+	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) {
+		hook_new_mode(&mode_tmpl, 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");
+		break;
+
+	case irms_float_number:
+	case irms_int_number:
+	case irms_reference:
+		mode = register_mode(&mode_tmpl);
+	}
+	return mode;
 }
+
 /*
-inline void
-set_mode_size (ir_mode *mode, int size)
+ * Creates a new vector 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)
 {
-  mode->size = size;
+	ir_mode mode_tmpl;
+	ir_mode *mode = NULL;
+
+	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) {
+		hook_new_mode(&mode_tmpl, 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");
+		break;
+
+	case irms_reference:
+		assert(0 && "only integer and floating point modes can be vectorized");
+		break;
+
+	case irms_float_number:
+		assert(0 && "not yet implemented");
+		break;
+
+	case irms_int_number:
+		mode = register_mode(&mode_tmpl);
+	}
+	return mode;
 }
-*/
 
-int
-get_mode_ld_align (ir_mode *mode)
-{
-  return mode->ld_align;
+/* Functions for the direct access to all attributes of an ir_mode */
+modecode (get_mode_modecode)(const ir_mode *mode) {
+	return _get_mode_modecode(mode);
 }
 
-/*
-inline void
-set_mode_ld_align (ir_mode *mode, int ld_align)
-{
-  mode->ld_align = ld_align;
+ident *(get_mode_ident)(const ir_mode *mode) {
+	return _get_mode_ident(mode);
 }
-*/
 
-tarval *
-get_mode_min (ir_mode *mode)
-{
-  return mode->min;
+const char *get_mode_name(const ir_mode *mode) {
+	return get_id_str(mode->name);
 }
 
-/*
-inline void
-set_mode_min (ir_mode *mode, tarval *min)
-{
-mode->min = min;
+mode_sort (get_mode_sort)(const ir_mode* mode) {
+	return _get_mode_sort(mode);
 }
-*/
 
-tarval *
-get_mode_max (ir_mode *mode)
-{
-  return mode->max;
+unsigned (get_mode_size_bits)(const ir_mode *mode) {
+	return _get_mode_size_bits(mode);
 }
 
-/*
-inline void
-set_mode_max (ir_mode *mode, tarval *max)
-{
-  mode->max = max;
+unsigned (get_mode_size_bytes)(const ir_mode *mode) {
+	return _get_mode_size_bytes(mode);
 }
-*/
 
-tarval *
-get_mode_null (ir_mode *mode)
-{
-  return mode->null;
+int (get_mode_sign)(const ir_mode *mode) {
+	return _get_mode_sign(mode);
 }
 
-/*
-inline void
-set_mode_null (ir_mode *mode, tarval *null)
-{
-  mode->null = null;
+mode_arithmetic (get_mode_arithmetic)(const ir_mode *mode) {
+	return get_mode_arithmetic(mode);
 }
-*/
 
-unsigned
-get_mode_fsigned (ir_mode *mode)
-{
-  return mode->fsigned;
+
+/* 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);
 }
 
-/*
-inline voida
-set_mode_fsigned (ir_mode *mode, unsigned fsigned)
-{
-  mode->fsigned = fsigned;
+unsigned int (get_mode_n_vector_elems)(const ir_mode *mode) {
+	return _get_mode_vector_elems(mode);
 }
-*/
 
-unsigned
-get_mode_ffloat (ir_mode *mode)
-{
-  return mode->ffloat;
+void *(get_mode_link)(const ir_mode *mode) {
+	return _get_mode_link(mode);
 }
 
-/*
-inline void
-set_mode_ffloat (ir_mode *mode, unsigned ffloat)
-{
-  mode->ffloat = ffloat;
-}
-*/
-
-/* Functions to check, whether a modecode is signed, float, int, num, data,
-   datab or dataM. For more exact definitions read the corresponding pages
-   in the firm documentation or the followingenumeration
-
-   The set of "float" is defined as:
-   ---------------------------------
-   float = {irm_f, irm_d}
-
-   The set of "int" is defined as:
-   -------------------------------
-   int   = {irm_c, irm_C, irm_h, irm_H, irm_i, irm_I, irm_l, irm_L}
-
-   The set of "num" is defined as:
-   -------------------------------
-   num   = {irm_f, irm_d, irm_c, irm_C, irm_h, irm_H,
-            irm_i, irm_I, irm_l, irm_L}
-            = {float || int}
-
-   The set of "data" is defined as:
-   -------------------------------
-   data  = {irm_f, irm_d, irm_c, irm_C, irm_h, irm_H,
-            irm_i, irm_I, irm_l, irm_L, irm_p}
-            = {num || irm_p}
-
-   The set of "datab" is defined as:
-   ---------------------------------
-   datab = {irm_f, irm_d, irm_c, irm_C, irm_h, irm_H,
-            irm_i, irm_I, irm_l, irm_L, irm_p, irm_b, irm_B}
-            = {data || irm_b || irm_B}
-
-   The set of "dataM" is defined as:
-   ---------------------------------
-   dataM = {irm_f, irm_d, irm_c, irm_C, irm_h, irm_H, irm_i,
-            irm_I, irm_l, irm_L, irm_p, irm_M}
-            = {data || irm_M}
-*/
-
-int
-mode_is_signed (ir_mode *mode)
-{
-   int res;
-   unsigned fsigned;
-   fsigned = get_mode_fsigned (mode);
-   if (fsigned == 1) {
-     res = 1;
-    }
-   else {
-     res = 0;
-   }
-   return res;
-}
-
-int
-mode_is_float (ir_mode *mode)
-{
-   int res;
-   unsigned ffloat;
-   ffloat = get_mode_ffloat (mode);
-   if (ffloat == 1) {
-      res = 1;
-    }
-   else {
-     res = 0;
-   }
-   return res;
+void (set_mode_link)(ir_mode *mode, void *l) {
+	_set_mode_link(mode, l);
 }
 
+tarval *get_mode_min(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_data(mode));
 
-int
-mode_is_int (ir_mode *mode)
-{
-   int res;
-   modecode code;
-   code = get_mode_modecode (mode);
-   if ((code >= irm_c) &&  (code <= irm_L)) {
-      res = 1;
-    }
-   else {
-     res = 0;
-   }
-   return res;
+	return mode->min;
 }
 
+tarval *get_mode_max(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_data(mode));
 
-int
-mode_is_num (ir_mode *mode)
-{
-  int res;
-  if (mode_is_int (mode) || mode_is_float (mode)) {
-    res = 1;
-  }
-  else {
-    res = 0;
-  }
-  return res;
-}
-
-int
-mode_is_data (ir_mode *mode)
-{
-  int res;
-  modecode code;
-  code = get_mode_modecode (mode);
-  if (mode_is_num (mode) || code == irm_p) {
-    res = 1;
-  }
-  else {
-    res = 0;
-  }
-  return res;
-}
-
-int
-mode_is_datab (ir_mode *mode)
-{
-  int res;
-  modecode code;
-  code = get_mode_modecode (mode);
-  if (mode_is_data (mode) || code == irm_b || code == irm_B) {
-    res = 1;
-  }
-  else {
-    res = 0;
-  }
-  return res;
-}
-
-int
-mode_is_dataM (ir_mode *mode)
-{
-  int res;
-  modecode code;
-  code = get_mode_modecode (mode);
-  if (mode_is_data (mode) || code == irm_M) {
-    res = 1;
-  }
-  else {
-    res = 0;
-  }
-  return res;
+	return mode->max;
+}
+
+tarval *get_mode_null(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_datab(mode));
+
+	return mode->null;
+}
+
+tarval *get_mode_one(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_datab(mode));
+
+	return mode->one;
+}
+
+tarval *get_mode_minus_one(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_data(mode));
+
+	return mode->minus_one;
+}
+
+tarval *get_mode_all_one(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_datab(mode));
+	return mode->all_one;
+}
+
+tarval *get_mode_infinite(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_float(mode));
+
+	return get_tarval_plus_inf(mode);
+}
+
+tarval *get_mode_NAN(ir_mode *mode) {
+	assert(mode);
+	assert(get_mode_modecode(mode) < (modecode) num_modes);
+	assert(mode_is_float(mode));
+
+	return get_tarval_nan(mode);
+}
+
+int is_mode(void *thing) {
+	if (get_kind(thing) == k_ir_mode)
+		return 1;
+	else
+		return 0;
+}
+
+int (mode_is_signed)(const ir_mode *mode) {
+	return _mode_is_signed(mode);
+}
+
+int (mode_is_float)(const ir_mode *mode) {
+	return _mode_is_float(mode);
+}
+
+int (mode_is_int)(const ir_mode *mode) {
+	return _mode_is_int(mode);
+}
+
+int (mode_is_reference)(const ir_mode *mode) {
+	return _mode_is_reference(mode);
+}
+
+int (mode_is_num)(const ir_mode *mode) {
+	return _mode_is_num(mode);
+}
+
+int (mode_is_data)(const ir_mode *mode) {
+	return _mode_is_data(mode);
+}
+
+int (mode_is_datab)(const ir_mode *mode) {
+	return _mode_is_datab(mode);
+}
+
+int (mode_is_dataM)(const ir_mode *mode) {
+	return _mode_is_dataM(mode);
+}
+
+int (mode_is_float_vector)(const ir_mode *mode) {
+	return _mode_is_float_vector(mode);
+}
+
+int (mode_is_int_vector)(const ir_mode *mode) {
+	return _mode_is_int_vector(mode);
+}
+
+/* Returns true if sm can be converted to lm without loss. */
+int smaller_mode(const ir_mode *sm, const ir_mode *lm) {
+	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;
+			}
+			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;
+
+	case irms_internal_boolean:
+		return mode_is_int(lm);
+
+	default:
+		break;
+	}
+
+	/* else */
+	return 0;
+}
+
+/* Return the signed integer equivalent mode for an reference mode. */
+ir_mode *get_reference_mode_signed_eq(ir_mode *mode) {
+	assert(mode_is_reference(mode));
+	return mode->eq_signed;
+}
+
+/* Sets the signed integer equivalent mode for an reference mode. */
+void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode) {
+	assert(mode_is_reference(ref_mode));
+	assert(mode_is_int(int_mode));
+	ref_mode->eq_signed = int_mode;
+}
+
+/* Return the unsigned integer equivalent mode for an reference mode. */
+ir_mode *get_reference_mode_unsigned_eq(ir_mode *mode) {
+	assert(mode_is_reference(mode));
+	return mode->eq_unsigned;
+}
+
+/* Sets the unsigned integer equivalent mode for an reference mode. */
+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;
+}
+
+/* initialization, build the default modes */
+void init_mode(void) {
+	ir_mode newmode;
+
+	obstack_init(&modes);
+	mode_list = NEW_ARR_F(ir_mode*, 0);
+
+	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.eq_signed    = NULL;
+	newmode.eq_unsigned  = NULL;
+	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;
+
+	mode_Ls = register_mode(&newmode);
+
+	/* 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;
+
+	mode_Lu = register_mode(&newmode);
+
+	/* signed long long integer */
+	newmode.name         = new_id_from_chars("LLs", 3);
+	newmode.code         = irm_LLs;
+	newmode.sign         = 1;
+	newmode.size         = 128;
+	newmode.modulo_shift = 128;
+
+	mode_LLs = register_mode(&newmode);
+
+	/* unsigned long long integer */
+	newmode.name         = new_id_from_chars("LLu", 3);
+	newmode.code         = irm_LLu;
+	newmode.sign         = 0;
+	newmode.size         = 128;
+	newmode.modulo_shift = 128;
+
+	mode_LLu = register_mode(&newmode);
+
+	/* Reference Mode */
+	newmode.sort       = irms_reference;
+	newmode.arithmetic = irma_twos_complement;
+
+	/* pointer */
+	newmode.name         = new_id_from_chars("P", 1);
+	newmode.code         = irm_P;
+	newmode.sign         = 0;
+	newmode.size         = 32;
+	newmode.modulo_shift = 0;
+	newmode.eq_signed    = mode_Is;
+	newmode.eq_unsigned  = mode_Iu;
+
+	mode_P = register_mode(&newmode);
+
+	/* set the machine specific modes to the predefined ones */
+	mode_P_code = mode_P;
+	mode_P_data = mode_P;
+}
+
+/* find a signed mode for an unsigned integer mode */
+ir_mode *find_unsigned_mode(const ir_mode *mode) {
+	ir_mode n = *mode;
+
+	assert(mode->sort == irms_int_number);
+	n.sign = 0;
+	return find_mode(&n);
+}
+
+/* find an unsigned mode for a signed integer mode */
+ir_mode *find_signed_mode(const ir_mode *mode) {
+	ir_mode n = *mode;
+
+	assert(mode->sort == irms_int_number);
+	n.sign = 1;
+	return find_mode(&n);
+}
+
+/* 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;
+
+	assert(mode->sort == irms_int_number && mode->arithmetic == irma_twos_complement);
+
+	n.size = 2*mode->size;
+	return find_mode(&n);
+}
+
+/*
+ * Returns non-zero if the given mode honors signed zero's, i.e.,
+ * a +0 and a -0 exists and handled differently.
+ */
+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;
+}
+
+/*
+ * Returns non-zero if the given mode might overflow on unary Minus.
+ *
+ * This does NOT happen on IEEE 754.
+ */
+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;
+}
+
+/*
+ * Returns non-zero if the mode has a reversed wrap-around
+ * logic, especially (a + x) - x == a.
+ *
+ * This is normally true for integer modes, not for floating
+ * point modes.
+ */
+int mode_wrap_around(const ir_mode *mode) {
+	/* FIXME: better would be an extra mode property */
+	return mode_is_int(mode);
+}
+
+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_E   = 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;
 }