X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firmode.c;h=af65955a811c29a237e38db1b564080a066be128;hb=7178144729a7d612ae910ba7acbe23af5924f1b2;hp=995f6eeb31c5175bfb1ee99125f6c7126d7edc1f;hpb=46fbaaf30aa63825bf9627cb13207308c3276d93;p=libfirm

diff --git a/ir/ir/irmode.c b/ir/ir/irmode.c
index 995f6eeb3..af65955a8 100644
--- a/ir/ir/irmode.c
+++ b/ir/ir/irmode.c
@@ -12,360 +12,411 @@
 #endif
 
 # include "irmode_t.h"
-# include <malloc.h>
+# include "ident.h"
+# include <stdlib.h>
 # include <stddef.h>
 # include <string.h>
 # include "tv.h"
+# include "obst.h"
+# include "misc.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
 
-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;
+/* * *
+ * local values
+ * * */
 
-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;
+/** dynamic array to hold all modes */
+static struct obstack modes;
 
-  /* 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);
+/** number of defined modes */
+static int num_modes;
 
-  /* 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);
+/* * *
+ * local functions
+ * * */
 
-  /* 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);
+/**
+ * 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 (0 == memcmp(&m->sort, &n->sort, offsetof(ir_mode,min) - offsetof(ir_mode,sort))) return 1;
 
-  /* 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);
+  return 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);
+/**
+ * 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)
+{
+  ir_mode *n;
+  struct _obstack_chunk	*p;
 
-  /* 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;
+  p=modes.chunk;
+  for( n=(ir_mode*) p->contents; (char *)n < modes.next_free; n+=sizeof(ir_mode) )
+  {
+    if(modes_are_equal(n,m)) return n;
+  }
 
-  /* boolean */
-  mode_b->name = id_from_str ("b", 1);
-  mode_b->fsigned = 0;
-  mode_b->ffloat = 0;
+  for (p = p->prev; p; p = p->prev)
+  {
+    for( n=(ir_mode*) p->contents; (char *)n < p->limit; n+=sizeof(ir_mode) )
+    {
+      if(modes_are_equal(n,m)) return n;
+    }
+  }
 
-  /* 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;
+  return NULL;
+}
 
-  /* Memory */
-  mode_M->name = id_from_str ("M", 1);
-  mode_M->fsigned = 0;
-  mode_M->ffloat = 0;
+/**
+ * sets special values of modes
+ */
+static void set_mode_values(ir_mode* mode)
+{
+  switch (get_mode_sort(mode))
+  {
+    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_character:
+    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;
+  }
+}
 
-  mode_R->name = id_from_str ("R", 1);
-  mode_R->fsigned = 0;
-  mode_R->ffloat = 0;
+/* * *
+ * globals defined in irmode.h
+ * * */
 
-  mode_Z->name = id_from_str ("Z", 1);
-  mode_Z->fsigned = 1;
-  mode_Z->ffloat = 0;
-}
+/* --- Predefined modes --- */
 
-/* Functions for the direct access to all attributes od a ir_mode */
+/* FIRM internal modes: */
+ir_mode *mode_T;
+ir_mode *mode_X;
+ir_mode *mode_M;
+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;
 
-modecode
-get_mode_modecode (ir_mode *mode)
+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 mode_P_mach; }
+void     set_modeP_mach(ir_mode *p) {
+  ANNOUNCE();
+  assert(mode_is_reference(p));
+  mode_P_mach = p;
+ }
+
+/**
+ * Registers a new mode if not defined yet, else returns
+ * the "equivalent" one.
+ */
+static ir_mode *register_mode(const ir_mode* new_mode)
 {
-  return mode->code;
+  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 mode;
 }
 
 /*
-INLINE void
-set_mode_modecode (ir_mode *mode, modecode code)
+ * Creates a new mode.
+ */
+ir_mode *new_ir_mode(const char *name, mode_sort sort, int bit_size, int align, int sign, mode_arithmetic arithmetic )
 {
-  mode->code = code;
+  ir_mode mode_tmpl;
+  ir_mode *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;
+      break;
+
+    case irms_float_number:
+      assert(0 && "not yet implemented");
+      return NULL;
+      break;
+
+    case irms_int_number:
+    case irms_reference:
+    case irms_character:
+      break;
+  }
+  mode_tmpl.name        = new_id_from_str(name);
+  mode_tmpl.sort        = sort;
+  mode_tmpl.size        = bit_size;
+  mode_tmpl.align       = align;
+  mode_tmpl.sign        = sign ? 1 : 0;
+  mode_tmpl.arithmetic  = arithmetic;
+  mode_tmpl.link        = NULL;
+  mode_tmpl.tv_priv     = NULL;
+
+  /* first check if there already is a matching mode */
+  mode = find_mode(&mode_tmpl);
+  if (mode)
+  {
+    return mode;
+  }
+  else
+  {
+    return register_mode(&mode_tmpl);
+  }
+}
+
+/* Functions for the direct access to all attributes od a ir_mode */
+modecode
+get_mode_modecode(const ir_mode *mode)
+{
+  ANNOUNCE();
+  return mode->code;
 }
-*/
 
 ident *
-get_mode_ident (ir_mode *mode)
+get_mode_ident(const ir_mode *mode)
 {
+  ANNOUNCE();
   return mode->name;
 }
 
-/*
-INLINE void
-set_mode_ident (ir_mode *mode, ident *name)
+const char *
+get_mode_name(const ir_mode *mode)
 {
-  mode->name = name;
+  ANNOUNCE();
+  return id_to_str(mode->name);
 }
-*/
 
-INLINE const char *
-get_mode_name       (ir_mode *mode) {
-  assert(mode);
-  return id_to_str(mode->name);
+mode_sort
+get_mode_sort(const ir_mode* mode)
+{
+  ANNOUNCE();
+  return mode->sort;
 }
-/* void  set_mode_name       (ir_mode *mode, char *name);    */
 
-int
-get_mode_size (ir_mode *mode)
+INLINE int
+get_mode_size_bits(const ir_mode *mode)
 {
+  ANNOUNCE();
   return mode->size;
 }
-/*
-INLINE void
-set_mode_size (ir_mode *mode, int size)
+
+int get_mode_size_bytes(const ir_mode *mode) {
+  int size = get_mode_size_bits(mode);
+  ANNOUNCE();
+  if ((size & 7) != 0) return -1;
+  return size >> 3;
+}
+
+int
+get_mode_align (const ir_mode *mode)
 {
-  mode->size = size;
+  ANNOUNCE();
+  return mode->align;
 }
-*/
 
 int
-get_mode_ld_align (ir_mode *mode)
+get_mode_sign (const ir_mode *mode)
 {
-  return mode->ld_align;
+  ANNOUNCE();
+  return mode->sign;
 }
 
-/*
-INLINE void
-set_mode_ld_align (ir_mode *mode, int ld_align)
+int get_mode_arithmetic (const ir_mode *mode)
 {
-  mode->ld_align = ld_align;
+  ANNOUNCE();
+  return mode->arithmetic;
 }
-*/
 
-tarval *
-get_mode_min (ir_mode *mode)
+void* get_mode_link(const ir_mode *mode)
 {
-  return mode->min;
+  ANNOUNCE();
+  return mode->link;
 }
 
-/*
-INLINE void
-set_mode_min (ir_mode *mode, tarval *min)
+void set_mode_link(ir_mode *mode, void *l)
 {
-mode->min = min;
+  mode->link=l;
+  return;
 }
-*/
 
 tarval *
-get_mode_max (ir_mode *mode)
+get_mode_min (ir_mode *mode)
 {
-  return mode->max;
+  ANNOUNCE();
+  assert(mode);
+  assert(get_mode_modecode(mode) < num_modes);
+  assert(mode_is_data(mode));
+
+  return mode->min;
 }
 
-/*
-INLINE void
-set_mode_max (ir_mode *mode, tarval *max)
+tarval *
+get_mode_max (ir_mode *mode)
 {
-  mode->max = max;
+  ANNOUNCE();
+  assert(mode);
+  assert(get_mode_modecode(mode) < num_modes);
+  assert(mode_is_data(mode));
+
+  return mode->max;
 }
-*/
 
 tarval *
 get_mode_null (ir_mode *mode)
 {
+  ANNOUNCE();
+  assert(mode);
+  assert(get_mode_modecode(mode) < num_modes);
+  assert(mode_is_data(mode));
+
   return mode->null;
 }
 
-/*
-INLINE void
-set_mode_null (ir_mode *mode, tarval *null)
+tarval *
+get_mode_one (ir_mode *mode)
 {
-  mode->null = null;
-}
-*/
+  ANNOUNCE();
+  assert(mode);
+  assert(get_mode_modecode(mode) < num_modes);
+  assert(mode_is_data(mode));
 
-unsigned
-get_mode_fsigned (ir_mode *mode)
-{
-  return mode->fsigned;
+  return mode->one;
 }
 
-/*
-INLINE voida
-set_mode_fsigned (ir_mode *mode, unsigned fsigned)
+tarval *
+get_mode_infinite(ir_mode *mode)
 {
-  mode->fsigned = fsigned;
+  ANNOUNCE();
+  assert(mode);
+  assert(get_mode_modecode(mode) < num_modes);
+  assert(mode_is_float(mode));
+
+  return get_tarval_inf(mode);
 }
-*/
 
-unsigned
-get_mode_ffloat (ir_mode *mode)
+tarval *
+get_mode_NAN(ir_mode *mode)
 {
-  return mode->ffloat;
+  ANNOUNCE();
+  assert(mode);
+  assert(get_mode_modecode(mode) < num_modes);
+  assert(mode_is_float(mode));
+
+  return get_tarval_nan(mode);
 }
 
-/*
-INLINE void
-set_mode_ffloat (ir_mode *mode, unsigned ffloat)
-{
-  mode->ffloat = ffloat;
+int
+is_mode (void *thing) {
+  assert(thing);
+  if (get_kind(thing) == k_ir_mode)
+    return 1;
+  else
+    return 0;
 }
-*/
 
 /* Functions to check, whether a modecode is signed, float, int, num, data,
    datab or dataM. For more exact definitions read the corresponding pages
@@ -373,149 +424,419 @@ set_mode_ffloat (ir_mode *mode, unsigned ffloat)
 
    The set of "float" is defined as:
    ---------------------------------
-   float = {irm_f, irm_d}
+   float = {irm_F, irm_D, irm_E}
 
    The set of "int" is defined as:
    -------------------------------
-   int   = {irm_c, irm_C, irm_h, irm_H, irm_i, irm_I, irm_l, irm_L}
+   int   = {irm_Bs, irm_Bu, irm_Hs, irm_Hu, irm_Is, irm_Iu, irm_Ls, irm_Lu}
 
    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}
+   num   = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu,
+            irm_Is, irm_Iu, irm_Ls, irm_Lu}
             = {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}
+   data  = {irm_F, irm_D, irm_E irm_Bs, irm_Bu, irm_Hs, irm_Hu,
+            irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P}
+            = {num || irm_C || irm_U || 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}
+   datab = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu,
+            irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P, irm_b}
+            = {data || 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}
+   dataM = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu,
+            irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P, irm_M}
             = {data || irm_M}
 */
 
+#ifdef MODE_ACCESS_DEFINES
+#  undef mode_is_signed
+#  undef mode_is_float
+#  undef mode_is_int
+#  undef mode_is_num
+#  undef mode_is_numP
+#  undef mode_is_data
+#  undef mode_is_datab
+#  undef mode_is_dataM
+#endif
 int
-mode_is_signed (ir_mode *mode)
+mode_is_signed (const ir_mode *mode)
 {
-   int res;
-   unsigned fsigned;
-   fsigned = get_mode_fsigned (mode);
-   if (fsigned == 1) {
-     res = 1;
-    }
-   else {
-     res = 0;
-   }
-   return res;
+  ANNOUNCE();
+  assert(mode);
+  return mode->sign;
 }
 
 int
-mode_is_float (ir_mode *mode)
+mode_is_float (const ir_mode *mode)
 {
-   int res;
-   unsigned ffloat;
-   ffloat = get_mode_ffloat (mode);
-   if (ffloat == 1) {
-      res = 1;
-    }
-   else {
-     res = 0;
-   }
-   return res;
+  ANNOUNCE();
+  assert(mode);
+  return (get_mode_sort(mode) == irms_float_number);
 }
 
-
 int
-mode_is_int (ir_mode *mode)
+mode_is_int (const 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;
+  ANNOUNCE();
+  assert(mode);
+  return (get_mode_sort(mode) == irms_int_number);
+}
+
+int mode_is_character (const ir_mode *mode)
+{
+  ANNOUNCE();
+  assert(mode);
+  return (get_mode_sort(mode) == irms_character);
 }
 
+int mode_is_reference (const ir_mode *mode)
+{
+  ANNOUNCE();
+  assert(mode);
+  return (get_mode_sort(mode) == irms_reference);
+}
 
 int
-mode_is_num (ir_mode *mode)
+mode_is_num (const ir_mode *mode)
 {
-  int res;
-  if (mode_is_int (mode) || mode_is_float (mode)) {
-    res = 1;
-  }
-  else {
-    res = 0;
-  }
-  return res;
+  ANNOUNCE();
+  assert(mode);
+  return (mode_is_int(mode) || mode_is_float(mode));
 }
 
 int
-mode_is_data (ir_mode *mode)
+mode_is_numP (const 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;
+  ANNOUNCE();
+  assert(mode);
+  return (mode_is_int(mode) || mode_is_float(mode) || mode_is_reference(mode));
 }
 
 int
-mode_is_datab (ir_mode *mode)
+mode_is_data (const 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;
+  ANNOUNCE();
+  assert(mode);
+  return (mode_is_num(mode) || get_mode_sort(mode) == irms_character || get_mode_sort(mode) == irms_reference);
 }
 
 int
-mode_is_dataM (ir_mode *mode)
+mode_is_datab (const 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;
+  ANNOUNCE();
+  assert(mode);
+  return (mode_is_data(mode) || get_mode_sort(mode) == irms_internal_boolean);
 }
 
+int
+mode_is_dataM (const ir_mode *mode)
+{
+  ANNOUNCE();
+  assert(mode);
+  return (mode_is_data(mode) || get_mode_modecode(mode) == irm_M);
+}
+#ifdef MODE_ACCESS_DEFINES
+#  define mode_is_signed(mode) (mode)->sign
+#  define mode_is_float(mode) ((mode)->sort == irms_float_number)
+#  define mode_is_int(mode) ((mode)->sort == irms_int_number)
+#  define mode_is_num(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number))
+#  define mode_is_data(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number) || ((mode)->sort == irms_character) || ((mode)->sort == irms_reference))
+#  define mode_is_datab(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number) || ((mode)->sort == irms_character) || ((mode)->sort == irms_reference) || ((mode)->sort == irms_internal_boolean))
+#  define mode_is_dataM(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number) || ((mode)->sort == irms_character) || ((mode)->sort == irms_reference) || ((mode)->code == irm_M))
+#endif
 /* Returns true if sm can be converted to lm without loss. */
-bool
-smaller_mode(ir_mode *sm, ir_mode *lm) {
-  if ((mode_is_int(sm) && mode_is_int(lm)) &&
-      get_mode_modecode(sm) <= get_mode_modecode(lm))
-    return true;
-  if ((mode_is_float(sm) && mode_is_float(lm)) &&
-      get_mode_modecode(sm) <= get_mode_modecode(lm))
-    return true;
+int
+smaller_mode(const ir_mode *sm, const ir_mode *lm)
+{
+  ANNOUNCE();
+  assert(sm);
+  assert(lm);
+
+  if (sm == lm) return 1;
+
+  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)
+           */
+          if (mode_is_signed(sm))
+          {
+            if ( mode_is_signed(lm) && (get_mode_size_bits(lm) > get_mode_size_bits(sm)) )
+              return 1;
+          }
+          else if (mode_is_signed(lm))
+          {
+            if (get_mode_size_bits(lm) > get_mode_size_bits(sm) + 1)
+              return 1;
+          }
+          else if (get_mode_size_bits(lm) > get_mode_size_bits(sm))
+          {
+            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:
+      /* XXX currently only the three standard 32,64,80 bit floats
+       * are supported which can safely be converted */
+      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;
+}
+
+/* ** initialization ** */
+void
+init_mode (void)
+{
+  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.align   = 0;
+  newmode.sign    = 0;
+  newmode.link    = NULL;
+  newmode.tv_priv = NULL;
+
+  /* Control Flow Modes*/
+  newmode.sort    = irms_control_flow;
+
+  /* Basic Block */
+  newmode.name    = id_from_str("BB", 2);
+  newmode.code    = irm_BB;
+
+  mode_BB = register_mode(&newmode);
+
+/* eXecution */
+  newmode.name    = id_from_str("X", 1);
+  newmode.code    = irm_X;
+
+  mode_X = register_mode(&newmode);
+
+  /* Memory Modes */
+  newmode.sort    = irms_memory;
+
+  /* Memory */
+  newmode.name    = id_from_str("M", 1);
+  newmode.code    = irm_M;
+
+  mode_M = register_mode(&newmode);
+
+  /* Auxiliary Modes */
+  newmode.sort    = irms_auxiliary,
+
+  /* Tuple */
+  newmode.name    = id_from_str("T", 1);
+  newmode.code    = irm_T;
+
+  mode_T = register_mode(&newmode);
+
+  /* ANY */
+  newmode.name    = id_from_str("ANY", 3);
+  newmode.code    = irm_ANY;
+
+  mode_ANY = register_mode(&newmode);
+
+  /* BAD */
+  newmode.name    = id_from_str("BAD", 3);
+  newmode.code    = irm_BAD;
+
+  mode_BAD = register_mode(&newmode);
+
+  /* Internal Boolean Modes */
+  newmode.sort    = irms_internal_boolean;
+
+  /* boolean */
+  newmode.name    = id_from_str("b", 1);
+  newmode.code    = irm_b;
+
+  mode_b = register_mode(&newmode);
+
+/* Data Modes */
+
+  /* Float Number Modes */
+  newmode.sort    = irms_float_number;
+  newmode.arithmetic = irma_ieee754;
+
+  /* float */
+  newmode.name    = id_from_str("F", 1);
+  newmode.code    = irm_F;
+  newmode.sign    = 1;
+  newmode.align   = 4;
+  newmode.size    = 32;
+
+  mode_F = register_mode(&newmode);
+
+  /* double */
+  newmode.name    = id_from_str("D", 1);
+  newmode.code    = irm_D;
+  newmode.sign    = 1;
+  newmode.align   = 4;
+  newmode.size    = 64;
+
+  mode_D = register_mode(&newmode);
+
+  /* extended */
+  newmode.name    = id_from_str("E", 1);
+  newmode.code    = irm_E;
+  newmode.sign    = 1;
+  newmode.align   = 4;
+  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    = id_from_str("Bs", 2);
+  newmode.code    = irm_Bs;
+  newmode.sign    = 1;
+  newmode.align   = 1;
+  newmode.size    = 8;
+
+  mode_Bs = register_mode(&newmode);
+
+  /* unsigned byte */
+  newmode.name    = id_from_str("Bu", 2);
+  newmode.code    = irm_Bu;
+  newmode.arithmetic = irma_twos_complement;
+  newmode.sign    = 0;
+  newmode.align   = 1;
+  newmode.size    = 8;
+
+  mode_Bu = register_mode(&newmode);
+
+  /* signed short integer */
+  newmode.name    = id_from_str("Hs", 2);
+  newmode.code    = irm_Hs;
+  newmode.sign    = 1;
+  newmode.align   = 2;
+  newmode.size    = 16;
+
+  mode_Hs = register_mode(&newmode);
+
+  /* unsigned short integer */
+  newmode.name    = id_from_str("Hu", 2);
+  newmode.code    = irm_Hu;
+  newmode.sign    = 0;
+  newmode.align   = 2;
+  newmode.size    = 16;
+
+  mode_Hu = register_mode(&newmode);
+
+  /* signed integer */
+  newmode.name    = id_from_str("Is", 2);
+  newmode.code    = irm_Is;
+  newmode.sign    = 1;
+  newmode.align   = 4;
+  newmode.size    = 32;
+
+  mode_Is = register_mode(&newmode);
+
+  /* unsigned integer */
+  newmode.name    = id_from_str("Iu", 2);
+  newmode.code    = irm_Iu;
+  newmode.sign    = 0;
+  newmode.align   = 4;
+  newmode.size    = 32;
+
+  mode_Iu = register_mode(&newmode);
+
+  /* signed long integer */
+  newmode.name    = id_from_str("Ls", 2);
+  newmode.code    = irm_Ls;
+  newmode.sign    = 1;
+  newmode.align   = 4;
+  newmode.size    = 64;
+
+  mode_Ls = register_mode(&newmode);
+
+  /* unsigned long integer */
+  newmode.name    = id_from_str("Lu", 2);
+  newmode.code    = irm_Lu;
+  newmode.sign    = 0;
+  newmode.align   = 4;
+  newmode.size    = 64;
+
+  mode_Lu = register_mode(&newmode);
+
+  /* Character Modes */
+  newmode.sort    = irms_character;
+  newmode.arithmetic = irma_none;
+
+  /* Character */
+  newmode.name    = id_from_str("C", 1);
+  newmode.code    = irm_C;
+  newmode.sign    = 0;
+  newmode.align   = 1;
+  newmode.size    = 8;
+
+  mode_C = register_mode(&newmode);
+
+  /* Unicode character */
+  newmode.name    = id_from_str("U", 1);
+  newmode.code    = irm_U;
+  newmode.sign    = 0;
+  newmode.align   = 2;
+  newmode.size    = 16;
+
+  mode_U = register_mode(&newmode);
+
+  /* Reference Modes */
+  newmode.sort    = irms_reference;
+  newmode.arithmetic = irma_twos_complement;
+
+  /* pointer */
+  newmode.name    = id_from_str("P", 1);
+  newmode.code    = irm_P;
+  newmode.sign    = 0;
+  newmode.align   = 4;
+  newmode.size    = 32;
+
+  mode_P = register_mode(&newmode);
+
+  /* set the machine specific modes to the predifined ones */
+  mode_P_mach = mode_P;
 }