-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-*/
-
+/*
+ * 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.
+ */
#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"
-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;
+# include "irmode_t.h"
+# include "ident.h"
+# include "tv_t.h"
+# include "obst.h"
+# include "irhooks.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
-void
-init_mode (void)
+/* * *
+ * 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)
{
- /* 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;
+ 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;
+}
- /* float */
- mode_f->name = id_from_str ("f", 1);
- mode_f->fsigned = 1;
- mode_f->ffloat = 1;
+/*
+ * calculates the next obstack address
+ */
+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);
- /* double */
- mode_d->name = id_from_str ("d", 1);
- mode_d->fsigned = 1;
- mode_d->ffloat = 1;
-
- /* signed char */
- mode_c->name = id_from_str ("c", 1);
- mode_c->fsigned = 1;
- mode_c->ffloat = 0;
- mode_c->ld_align = 0;
- 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 = 0;
- 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);
+ adr += s + mask;
- /* signed short integer */
- mode_h->name = id_from_str ("h", 1);
- mode_h->fsigned = 1;
- mode_h->ffloat = 0;
- mode_h->ld_align = 1;
- mode_h->size = 4;
- 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 = 1;
- mode_H->size = 4;
- 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);
+ return __INT_TO_PTR(adr & ~mask);
+}
- /* signed integer */
- mode_i->name = id_from_str ("i", 1);
- mode_i->fsigned = 1;
- mode_i->ffloat = 0;
- mode_i->ld_align = 2;
- 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);
+/**
+ * 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, *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));
+ }
- /* unsigned integer */
- mode_I->name = id_from_str ("I", 1);
- mode_I->fsigned = 0;
- mode_I->ffloat = 0;
- mode_I->ld_align = 2;
- 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);
+ 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;
- /* signed long integer */
- mode_l->name = id_from_str ("l", 1);
- mode_l->fsigned = 1;
- mode_l->ffloat = 0;
- mode_l->ld_align = 2;
- 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);
+ n = nn;
+ nn = next_obstack_adr(&modes, n, sizeof(*n));
+ }
+ }
- /* unsigned long integer */
- mode_L->name = id_from_str ("L", 1);
- mode_L->fsigned = 0;
- mode_L->ffloat = 0;
- mode_L->ld_align = 2;
- 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;
+ return NULL;
+}
- /* boolean */
- mode_b->name = id_from_str ("b", 1);
- mode_b->fsigned = 0;
- mode_b->ffloat = 0;
+/**
+ * sets special values of modes
+ */
+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);
+ mode->minus_one = get_tarval_minus_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;
+ mode->minus_one = tarval_bad;
+ break;
+
+ case irms_reference:
+ mode->min = tarval_bad;
+ mode->max = tarval_bad;
+ mode->null = get_tarval_null(mode);
+ mode->one = tarval_bad;
+ mode->minus_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;
+ mode->minus_one = tarval_bad;
+ break;
+ }
+}
- /* pointer */
- mode_p->name = id_from_str ("p", 1);
- mode_p->fsigned = 0;
- mode_p->ffloat = 0;
- mode_p->ld_align = 2;
- 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;
+/* * *
+ * globals defined in irmode.h
+ * * */
- /* Memory */
- mode_M->name = id_from_str ("M", 1);
- mode_M->fsigned = 0;
- mode_M->ffloat = 0;
+/* --- Predefined modes --- */
- mode_R->name = id_from_str ("R", 1);
- mode_R->fsigned = 0;
- mode_R->ffloat = 0;
+/* 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;
- mode_Z->name = id_from_str ("Z", 1);
- mode_Z->fsigned = 1;
- mode_Z->ffloat = 0;
+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();
}
-/* Functions for the direct access to all attributes od a ir_mode */
+void (set_modeP_mach)(ir_mode *p) {
+ ANNOUNCE();
+ _set_modeP_mach(p);
+}
-modecode
-get_mode_modecode (ir_mode *mode)
+/**
+ * Registers a new mode.
+ *
+ * @param new_mode The new mode template.
+ */
+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(*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 sign,
+ mode_arithmetic arithmetic, unsigned int modulo_shift )
{
- mode->code = code;
+ 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:
+ case irms_character:
+ mode = register_mode(&mode_tmpl);
+ }
+ hook_new_mode(&mode_tmpl, mode);
+ return mode;
+}
+
+/*
+ * 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 )
+{
+ 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");
+ 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_reference:
+ case irms_character:
+ 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);
+ }
+ hook_new_mode(&mode_tmpl, mode);
+ return mode;
+}
+
+/* Functions for the direct access to all attributes od a ir_mode */
+modecode
+(get_mode_modecode)(const ir_mode *mode)
+{
+ ANNOUNCE();
+ return _get_mode_modecode(mode);
}
-*/
ident *
-get_mode_ident (ir_mode *mode)
+(get_mode_ident)(const ir_mode *mode)
{
- return mode->name;
+ ANNOUNCE();
+ return _get_mode_ident(mode);
}
-/*
-inline void
-set_mode_ident (ir_mode *mode, ident *name)
+const char *
+get_mode_name(const ir_mode *mode)
{
- mode->name = name;
+ ANNOUNCE();
+ return get_id_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 _get_mode_sort(mode);
}
-/* void set_mode_name (ir_mode *mode, char *name); */
int
-get_mode_size (ir_mode *mode)
+(get_mode_size_bits)(const ir_mode *mode)
{
- return mode->size;
+ ANNOUNCE();
+ return _get_mode_size_bits(mode);
}
-/*
-inline void
-set_mode_size (ir_mode *mode, int size)
-{
- mode->size = size;
+
+int
+(get_mode_size_bytes)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _get_mode_size_bytes(mode);
}
-*/
int
-get_mode_ld_align (ir_mode *mode)
+(get_mode_sign)(const ir_mode *mode)
{
- return mode->ld_align;
+ ANNOUNCE();
+ return _get_mode_sign(mode);
}
-/*
-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 get_mode_arithmetic(mode);
}
-*/
-tarval *
-get_mode_min (ir_mode *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_n_vector_elems)(const ir_mode *mode) {
+ return _get_mode_vector_elems(mode);
+}
+
+void *
+(get_mode_link)(const ir_mode *mode)
{
- return mode->min;
+ ANNOUNCE();
+ return _get_mode_link(mode);
}
-/*
-inline void
-set_mode_min (ir_mode *mode, tarval *min)
+void
+(set_mode_link)(ir_mode *mode, void *l)
{
-mode->min = min;
+ _set_mode_link(mode, l);
}
-*/
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));
+
+ return mode->one;
}
-*/
-unsigned
-get_mode_fsigned (ir_mode *mode)
+tarval *
+get_mode_minus_one (ir_mode *mode)
{
- return mode->fsigned;
+ ANNOUNCE();
+ assert(mode);
+ assert(get_mode_modecode(mode) < num_modes);
+ assert(mode_is_data(mode));
+
+ return mode->minus_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_plus_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;
-}
-*/
-
-/* 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
+is_mode (void *thing) {
+ if (get_kind(thing) == k_ir_mode)
+ return 1;
+ else
+ return 0;
+}
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;
+(mode_is_signed)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_signed(mode);
}
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;
+(mode_is_float)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_float(mode);
}
+int
+(mode_is_int)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_int(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;
+(mode_is_character)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_character(mode);
}
+int
+(mode_is_reference)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_reference(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;
+(mode_is_num)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_num(mode);
}
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;
+(mode_is_numP)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_numP(mode);
}
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;
+(mode_is_data)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_data(mode);
+}
+
+int
+(mode_is_datab)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_datab(mode);
}
int
-mode_is_dataM (ir_mode *mode)
+(mode_is_dataM)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_dataM(mode);
+}
+
+int
+(mode_is_float_vector)(const ir_mode *mode) {
+ ANNOUNCE();
+ return _mode_is_float_vector(mode);
+}
+
+int
+(mode_is_int_vector)(const ir_mode *mode) {
+ ANNOUNCE();
+ 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 res;
- modecode code;
- code = get_mode_modecode (mode);
- if (mode_is_data (mode) || code == irm_M) {
- res = 1;
- }
- else {
- res = 0;
+ 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;
}
- return res;
+
+ /* else */
+ return 0;
+}
+
+/* initialization, build the default modes */
+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.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;
+
+ 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);
+
+ /* Character Modes */
+ newmode.sort = irms_character;
+ newmode.arithmetic = irma_none;
+
+ /* Character */
+ newmode.name = new_id_from_chars("C", 1);
+ newmode.code = irm_C;
+ newmode.sign = 0;
+ newmode.size = 8;
+ newmode.modulo_shift = 32;
+
+ mode_C = register_mode(&newmode);
+
+ /* Unicode character */
+ newmode.name = new_id_from_chars("U", 1);
+ newmode.code = irm_U;
+ newmode.sign = 0;
+ newmode.size = 16;
+ newmode.modulo_shift = 32;
+
+ mode_U = register_mode(&newmode);
+
+ /* Reference Modes */
+ 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;
+
+ mode_P = register_mode(&newmode);
+
+ /* set the machine specific modes to the predefined ones */
+ mode_P_mach = mode_P;
+}
+
+/* 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);
+}
+
+/* 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.
+ */
+ if (mode->sort == irms_float_number)
+ return mode->arithmetic == irma_ieee754 ? 0 : 1;
+ return 0;
+}
+
+/*
+ * 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-aound
+ * 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);
+
+ 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_C = NULL;
+ mode_U = NULL;
+ mode_b = NULL;
+ mode_P = NULL;
+
+ mode_P_mach = NULL;
}
projects / libfirm / blobdiff