/*
- * 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.
+ * 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.
*/
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-# include <string.h>
-#endif
-# include <stddef.h>
+/**
+ * @file
+ * @brief Data modes of operations.
+ * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Mathias Heil
+ * @version $Id$
+ */
+#include "config.h"
-# include "irprog_t.h"
-# include "irmode_t.h"
-# include "ident.h"
-# include "tv_t.h"
-# include "obst.h"
-# include "irhooks.h"
+#include <stdlib.h>
+#include <string.h>
-#if 0
-static long long count = 0;
-# define ANNOUNCE() printf(__FILE__": call no. %lld (%s)\n", count++, __FUNCTION__)
-#else
-# define ANNOUNCE() ((void)0)
-#endif
-
-/* * *
- * local values
- * * */
+#include <stddef.h>
+#include "irprog_t.h"
+#include "irmode_t.h"
+#include "ident.h"
+#include "tv_t.h"
+#include "obst.h"
+#include "irhooks.h"
+#include "irtools.h"
+#include "array.h"
+#include "error.h"
-/** dynamic array to hold all modes */
+/** Obstack to hold all modes. */
static struct obstack modes;
-/** number of defined modes */
-static int num_modes;
+/** The list of all currently existing modes. */
+static ir_mode **mode_list;
-/* * *
- * local functions
- * * */
+const char *get_mode_arithmetic_name(ir_mode_arithmetic ari)
+{
+#define X(a) case a: return #a
+ switch (ari) {
+ X(irma_uninitialized);
+ X(irma_none);
+ X(irma_twos_complement);
+ X(irma_ones_complement);
+ X(irma_int_BCD);
+ X(irma_ieee754);
+ X(irma_float_BCD);
+ default: return "<unknown>";
+ }
+#undef X
+}
/**
* Compare modes that don't need to have their code field
*
* 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;
+static inline int modes_are_equal(const ir_mode *m, const ir_mode *n) {
+ if (m == n) return 1;
+ if (m->sort == n->sort &&
+ m->arithmetic == n->arithmetic &&
+ m->size == n->size &&
+ m->sign == n->sign &&
+ m->modulo_shift == n->modulo_shift &&
+ m->vector_elem == n->vector_elem)
+ return 1;
- return 0;
-}
-
-/*
- * calculates the next obstack address
- */
-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);
-
- adr += s + mask;
-
- return __INT_TO_PTR(adr & ~mask);
+ return 0;
}
/**
* 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));
- }
-
- for (p = p->prev; p; p = p->prev) {
- n = (ir_mode *)p->contents;
- nn = next_obstack_adr(&modes, n, sizeof(*n));
- for (; (char *)nn < p->limit;) {
- assert(is_mode(n));
- if (modes_are_equal(n, m))
- return n;
-
- n = nn;
- nn = next_obstack_adr(&modes, n, sizeof(*n));
- }
- }
-
- return NULL;
+static ir_mode *find_mode(const ir_mode *m) {
+ int i;
+ for (i = ARR_LEN(mode_list) - 1; i >= 0; --i) {
+ ir_mode *n = mode_list[i];
+ if (modes_are_equal(n, m))
+ return n;
+ }
+ return NULL;
+}
+
+#ifdef FIRM_STATISTICS
+/* return the mode index, only needed for statistics */
+int stat_find_mode_index(const ir_mode *m) {
+ int i;
+ for (i = ARR_LEN(mode_list) - 1; i >= 0; --i) {
+ ir_mode *n = mode_list[i];
+ if (modes_are_equal(n, m))
+ return i;
+ }
+ return -1;
+}
+
+/* return the mode for a given index, only needed for statistics */
+ir_mode *stat_mode_for_index(int idx) {
+ if (0 <= idx && idx < ARR_LEN(mode_list))
+ return mode_list[idx];
+ return NULL;
}
+#endif
/**
* 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;
- }
+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;
+ }
}
/* * *
ir_mode *mode_Iu;
ir_mode *mode_Ls; /* 64 bit */
ir_mode *mode_Lu;
+ir_mode *mode_LLs; /* 128 bit */
+ir_mode *mode_LLu;
-ir_mode *mode_C;
-ir_mode *mode_U;
ir_mode *mode_b;
ir_mode *mode_P;
/* machine specific modes */
-ir_mode *mode_P_code; /**< machine specific pointer mode for code addresses */
-ir_mode *mode_P_data; /**< machine specific pointer mode for data addresses */
+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) { ANNOUNCE(); return mode_T; }
-ir_mode *get_modeF(void) { ANNOUNCE(); return mode_F; }
-ir_mode *get_modeD(void) { ANNOUNCE(); return mode_D; }
-ir_mode *get_modeE(void) { ANNOUNCE(); return mode_E; }
-ir_mode *get_modeBs(void) { ANNOUNCE(); return mode_Bs; }
-ir_mode *get_modeBu(void) { ANNOUNCE(); return mode_Bu; }
-ir_mode *get_modeHs(void) { ANNOUNCE(); return mode_Hs; }
-ir_mode *get_modeHu(void) { ANNOUNCE(); return mode_Hu; }
-ir_mode *get_modeIs(void) { ANNOUNCE(); return mode_Is; }
-ir_mode *get_modeIu(void) { ANNOUNCE(); return mode_Iu; }
-ir_mode *get_modeLs(void) { ANNOUNCE(); return mode_Ls; }
-ir_mode *get_modeLu(void) { ANNOUNCE(); return mode_Lu; }
-ir_mode *get_modeC(void) { ANNOUNCE(); return mode_C; }
-ir_mode *get_modeU(void) { ANNOUNCE(); return mode_U; }
-ir_mode *get_modeb(void) { ANNOUNCE(); return mode_b; }
-ir_mode *get_modeP(void) { ANNOUNCE(); return mode_P; }
-ir_mode *get_modeX(void) { ANNOUNCE(); return mode_X; }
-ir_mode *get_modeM(void) { ANNOUNCE(); return mode_M; }
-ir_mode *get_modeBB(void) { ANNOUNCE(); return mode_BB; }
-ir_mode *get_modeANY(void) { ANNOUNCE(); return mode_ANY; }
-ir_mode *get_modeBAD(void) { ANNOUNCE(); return mode_BAD; }
+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) {
- ANNOUNCE();
- return _get_modeP_code();
+ return _get_modeP_code();
}
ir_mode *(get_modeP_data)(void) {
- ANNOUNCE();
- return _get_modeP_data();
+ return _get_modeP_data();
}
void set_modeP_code(ir_mode *p) {
- assert(mode_is_reference(p));
-
- mode_P_code = p;
+ assert(mode_is_reference(p));
+ mode_P_code = p;
}
void set_modeP_data(ir_mode *p) {
- assert(mode_is_reference(p));
-
- mode_P_data = p;
+ assert(mode_is_reference(p));
+ mode_P_data = p;
}
/**
*
* @param new_mode The new mode template.
*/
-static ir_mode *register_mode(const ir_mode *new_mode)
-{
- ir_mode *mode = NULL;
+static ir_mode *register_mode(const ir_mode *new_mode) {
+ ir_mode *mode = NULL;
- ANNOUNCE();
- assert(new_mode);
+ assert(new_mode);
- /* copy mode struct to modes array */
- mode = (ir_mode *)obstack_copy(&modes, new_mode, sizeof(*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++;
+ mode->kind = k_ir_mode;
- /* add the new mode to the irp list of modes */
- add_irp_mode(mode);
+ /* add the new mode to the irp list of modes */
+ add_irp_mode(mode);
- set_mode_values(mode);
+ set_mode_values(mode);
- hook_new_mode(new_mode, mode);
- return mode;
+ hook_new_mode(new_mode, mode);
+ return 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 )
+ir_mode *new_ir_mode(const char *name, ir_mode_sort sort, int bit_size, int sign,
+ ir_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;
- 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);
- }
- return mode;
+ 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:
+ panic("internal modes cannot be user defined");
+
+ case irms_float_number:
+ case irms_int_number:
+ case irms_reference:
+ mode = register_mode(&mode_tmpl);
+ break;
+ }
+ assert(mode != NULL);
+ 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 *new_ir_vector_mode(const char *name, ir_mode_sort sort, int bit_size, unsigned num_of_elem, int sign,
+ ir_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");
- 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:
- 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);
- }
- return mode;
+ 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:
+ panic("internal modes cannot be user defined");
+
+ case irms_reference:
+ panic("only integer and floating point modes can be vectorized");
+
+ case irms_float_number:
+ panic("not yet implemented");
+
+ case irms_int_number:
+ mode = register_mode(&mode_tmpl);
+ }
+ assert(mode != NULL);
+ return mode;
}
/* Functions for the direct access to all attributes of an ir_mode */
-modecode
-(get_mode_modecode)(const ir_mode *mode)
-{
- ANNOUNCE();
- return _get_mode_modecode(mode);
-}
-
-ident *
-(get_mode_ident)(const ir_mode *mode)
-{
- ANNOUNCE();
- return _get_mode_ident(mode);
+ident *(get_mode_ident)(const ir_mode *mode) {
+ return _get_mode_ident(mode);
}
-const char *
-get_mode_name(const ir_mode *mode)
-{
- ANNOUNCE();
- return get_id_str(mode->name);
+const char *get_mode_name(const ir_mode *mode) {
+ return get_id_str(mode->name);
}
-mode_sort
-(get_mode_sort)(const ir_mode* mode)
-{
- ANNOUNCE();
- return _get_mode_sort(mode);
+ir_mode_sort (get_mode_sort)(const ir_mode* mode) {
+ return _get_mode_sort(mode);
}
-int
-(get_mode_size_bits)(const ir_mode *mode)
-{
- ANNOUNCE();
- return _get_mode_size_bits(mode);
+unsigned (get_mode_size_bits)(const ir_mode *mode) {
+ return _get_mode_size_bits(mode);
}
-int
-(get_mode_size_bytes)(const ir_mode *mode) {
- ANNOUNCE();
- return _get_mode_size_bytes(mode);
+unsigned (get_mode_size_bytes)(const ir_mode *mode) {
+ return _get_mode_size_bytes(mode);
}
-int
-(get_mode_sign)(const ir_mode *mode)
-{
- ANNOUNCE();
- return _get_mode_sign(mode);
+int (get_mode_sign)(const ir_mode *mode) {
+ return _get_mode_sign(mode);
}
-int
-(get_mode_arithmetic)(const ir_mode *mode)
-{
- ANNOUNCE();
- return get_mode_arithmetic(mode);
+ir_mode_arithmetic (get_mode_arithmetic)(const ir_mode *mode) {
+ return get_mode_arithmetic(mode);
}
* whether shift applies modulo to value of bits to shift. Asserts
* if mode is not irms_int_number.
*/
-unsigned int
-(get_mode_modulo_shift)(const ir_mode *mode) {
- return _get_mode_modulo_shift(mode);
+unsigned int (get_mode_modulo_shift)(const ir_mode *mode) {
+ return _get_mode_modulo_shift(mode);
}
-unsigned int
-(get_mode_n_vector_elems)(const ir_mode *mode) {
- return _get_mode_vector_elems(mode);
+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)
-{
- ANNOUNCE();
- return _get_mode_link(mode);
+void *(get_mode_link)(const ir_mode *mode) {
+ return _get_mode_link(mode);
}
-void
-(set_mode_link)(ir_mode *mode, void *l)
-{
- _set_mode_link(mode, l);
+void (set_mode_link)(ir_mode *mode, void *l) {
+ _set_mode_link(mode, l);
}
-tarval *
-get_mode_min (ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+tarval *get_mode_min(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_data(mode));
- return mode->min;
+ return mode->min;
}
-tarval *
-get_mode_max (ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+tarval *get_mode_max(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_data(mode));
- return mode->max;
+ 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));
+tarval *get_mode_null(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_datab(mode));
- return mode->null;
+ return mode->null;
}
-tarval *
-get_mode_one (ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+tarval *get_mode_one(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_datab(mode));
- return mode->one;
+ return mode->one;
}
-tarval *
-get_mode_minus_one (ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+tarval *get_mode_minus_one(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_data(mode));
- return mode->minus_one;
+ return mode->minus_one;
}
-tarval *
-get_mode_infinite(ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_float(mode));
-
- return get_tarval_plus_inf(mode);
+tarval *get_mode_all_one(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_datab(mode));
+ return mode->all_one;
}
-tarval *
-get_mode_NAN(ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_float(mode));
+tarval *get_mode_infinite(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_float(mode));
- return get_tarval_nan(mode);
+ return get_tarval_plus_inf(mode);
}
-int
-is_mode (void *thing) {
- if (get_kind(thing) == k_ir_mode)
- return 1;
- else
- return 0;
-}
+tarval *get_mode_NAN(ir_mode *mode) {
+ assert(mode);
+ assert(mode_is_float(mode));
-int
-(mode_is_signed)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_signed(mode);
+ return get_tarval_nan(mode);
}
-int
-(mode_is_float)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_float(mode);
+int is_mode(const void *thing) {
+ return get_kind(thing) == k_ir_mode;
}
-int
-(mode_is_int)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_int(mode);
+int (mode_is_signed)(const ir_mode *mode) {
+ return _mode_is_signed(mode);
}
-int
-(mode_is_character)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_character(mode);
+int (mode_is_float)(const ir_mode *mode) {
+ return _mode_is_float(mode);
}
-int
-(mode_is_reference)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_reference(mode);
+int (mode_is_int)(const ir_mode *mode) {
+ return _mode_is_int(mode);
}
-int
-(mode_is_num)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_num(mode);
+int (mode_is_reference)(const ir_mode *mode) {
+ return _mode_is_reference(mode);
}
-int
-(mode_is_numP)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_numP(mode);
+int (mode_is_num)(const ir_mode *mode) {
+ return _mode_is_num(mode);
}
-int
-(mode_is_data)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_data(mode);
+int (mode_is_data)(const ir_mode *mode) {
+ return _mode_is_data(mode);
}
-int
-(mode_is_datab)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_datab(mode);
+int (mode_is_datab)(const ir_mode *mode) {
+ return _mode_is_datab(mode);
}
-int
-(mode_is_dataM)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_dataM(mode);
+int (mode_is_dataM)(const ir_mode *mode) {
+ return _mode_is_dataM(mode);
}
-int
-(mode_is_float_vector)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_float_vector(mode);
+int (mode_is_float_vector)(const ir_mode *mode) {
+ return _mode_is_float_vector(mode);
}
-int
-(mode_is_int_vector)(const ir_mode *mode) {
- ANNOUNCE();
- return _mode_is_int_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;
-
- ANNOUNCE();
- assert(sm);
- assert(lm);
-
- if (sm == lm) return 1;
-
- sm_bits = get_mode_size_bits(sm);
- lm_bits = get_mode_size_bits(lm);
-
- switch(get_mode_sort(sm))
- {
- case irms_int_number:
- switch(get_mode_sort(lm))
- {
- case irms_int_number:
- /* integers are convertable if
- * - both have the same sign and lm is the larger one
- * - lm is the signed one and is at least two bits larger
- * (one for the sign, one for the highest bit of sm)
- * - sm & lm are two_complement and lm has greater or equal number of bits
- */
- if ( get_mode_arithmetic(sm) == get_mode_arithmetic(lm)
- && get_mode_arithmetic(sm) == irma_twos_complement) {
- return lm_bits >= sm_bits;
- }
- else if (mode_is_signed(sm))
- {
- if ( mode_is_signed(lm) && (lm_bits >= sm_bits) )
- return 1;
- }
- else if (mode_is_signed(lm))
- {
- if (lm_bits > sm_bits + 1)
- return 1;
- }
- else if (lm_bits >= sm_bits)
- {
- return 1;
- }
- break;
-
- case irms_float_number:
- /* int to float works if the float is large enough */
- return 0;
-
- default:
- break;
- }
- break;
-
- case irms_float_number:
- if (get_mode_arithmetic(sm) == get_mode_arithmetic(lm)) {
- if ( (get_mode_sort(lm) == irms_float_number)
- && (get_mode_size_bits(lm) >= get_mode_size_bits(sm)) )
- return 1;
- }
- break;
-
- case irms_reference:
- /* do exist machines out there with different pointer lenghts ?*/
- return 0;
-
- default:
- break;
- }
-
- /* else */
- return 0;
-}
-
-/* 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;
+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);
- mode_BAD = register_mode(&newmode);
+ /* 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;
- /* Internal Boolean Modes */
- newmode.sort = irms_internal_boolean;
+ case irms_float_number:
+ /* int to float works if the float is large enough */
+ return 0;
- /* boolean */
- newmode.name = new_id_from_chars("b", 1);
- newmode.code = irm_b;
+ default:
+ break;
+ }
+ break;
- mode_b = register_mode(&newmode);
+ 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;
-/* Data Modes */
- newmode.vector_elem = 1;
+ case irms_reference:
+ /* do exist machines out there with different pointer lengths ?*/
+ return 0;
- /* Float Number Modes */
- newmode.sort = irms_float_number;
- newmode.arithmetic = irma_ieee754;
+ case irms_internal_boolean:
+ return mode_is_int(lm);
- /* float */
- newmode.name = new_id_from_chars("F", 1);
- newmode.code = irm_F;
- newmode.sign = 1;
- newmode.size = 32;
+ default:
+ break;
+ }
- 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;
+ /* else */
+ return 0;
+}
- mode_Hs = register_mode(&newmode);
+/* Returns true if a value of mode sm can be converted into mode lm
+ and backwards without loss. */
+int values_in_mode(const ir_mode *sm, const ir_mode *lm) {
+ int sm_bits, lm_bits;
+ ir_mode_arithmetic arith;
- /* 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;
+ assert(sm);
+ assert(lm);
- mode_Hu = register_mode(&newmode);
+ if (sm == lm) return 1;
- /* signed integer */
- newmode.name = new_id_from_chars("Is", 2);
- newmode.code = irm_Is;
- newmode.sign = 1;
- newmode.size = 32;
- newmode.modulo_shift = 32;
+ if (sm == mode_b)
+ return mode_is_int(lm);
- mode_Is = register_mode(&newmode);
+ sm_bits = get_mode_size_bits(sm);
+ lm_bits = get_mode_size_bits(lm);
- /* unsigned integer */
- newmode.name = new_id_from_chars("Iu", 2);
- newmode.code = irm_Iu;
- newmode.sign = 0;
- newmode.size = 32;
- newmode.modulo_shift = 32;
+ arith = get_mode_arithmetic(sm);
+ if (arith != get_mode_arithmetic(lm))
+ return 0;
- mode_Iu = register_mode(&newmode);
+ switch (arith) {
+ case irma_twos_complement:
+ case irma_ieee754:
+ return get_mode_size_bits(sm) <= get_mode_size_bits(lm);
- /* 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;
+ default:
+ return 0;
+ }
+}
- 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_twos_complement;
- newmode.modulo_shift = 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;
+}
- /* Character */
- newmode.name = new_id_from_chars("C", 1);
- newmode.code = irm_C;
- newmode.sign = 0;
- newmode.size = 8;
-
- mode_C = register_mode(&newmode);
+/* 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;
+}
- /* Unicode character */
- newmode.name = new_id_from_chars("U", 1);
- newmode.code = irm_U;
- newmode.sign = 0;
- newmode.size = 16;
-
- mode_U = register_mode(&newmode);
+/* 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;
+}
- /* 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);
+/* 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;
+}
- /* set the machine specific modes to the predefined ones */
- mode_P_code = mode_P;
- mode_P_data = mode_P;
+/* initialization, build the default modes */
+void init_mode(void) {
+ ir_mode newmode;
+
+ obstack_init(&modes);
+ mode_list = NEW_ARR_F(ir_mode*, 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);
+ mode_BB = register_mode(&newmode);
+
+ /* eXecution */
+ newmode.name = new_id_from_chars("X", 1);
+ mode_X = register_mode(&newmode);
+
+ /* Memory Modes */
+ newmode.sort = irms_memory;
+
+ /* Memory */
+ newmode.name = new_id_from_chars("M", 1);
+ mode_M = register_mode(&newmode);
+
+ /* Auxiliary Modes */
+ newmode.sort = irms_auxiliary,
+
+ /* Tuple */
+ newmode.name = new_id_from_chars("T", 1);
+ mode_T = register_mode(&newmode);
+
+ /* ANY */
+ newmode.name = new_id_from_chars("ANY", 3);
+ mode_ANY = register_mode(&newmode);
+
+ /* BAD */
+ newmode.name = new_id_from_chars("BAD", 3);
+ mode_BAD = register_mode(&newmode);
+
+ /* Internal Boolean Modes */
+ newmode.sort = irms_internal_boolean;
+
+ /* boolean */
+ newmode.name = new_id_from_chars("b", 1);
+ 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.sign = 1;
+ newmode.size = 32;
+ mode_F = register_mode(&newmode);
+
+ /* double */
+ newmode.name = new_id_from_chars("D", 1);
+ newmode.sign = 1;
+ newmode.size = 64;
+ mode_D = register_mode(&newmode);
+
+ /* extended */
+ newmode.name = new_id_from_chars("E", 1);
+ newmode.sign = 1;
+ /* note that the tarval module is calculating with 80 bits, but we use
+ * 96 bits, as that is what will be stored to memory by most hardware */
+ newmode.size = 96;
+ 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.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.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.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.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.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.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.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.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.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.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.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;
+ ir_mode n = *mode;
- if (mode->sort != irms_int_number);
- n.sign = 0;
- return find_mode(&n);
+ /* allowed for reference mode */
+ if (mode->sort == irms_reference)
+ n.sort = irms_int_number;
+
+ assert(n.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;
+ ir_mode n = *mode;
- assert(mode->sort == irms_int_number);
- n.sign = 1;
- return find_mode(&n);
+ 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;
+ ir_mode n = *mode;
- assert(mode->sort == irms_int_number && mode->arithmetic == irma_twos_complement);
+ assert(mode->sort == irms_int_number && mode->arithmetic == irma_twos_complement);
- n.size = 2*mode->size;
- return find_mode(&n);
+ 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;
+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;
}
/*
*
* 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;
+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
+ * 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);
+ /* FIXME: better would be an extra mode property */
+ return mode_is_int(mode);
+}
+
+/*
+ * Returns non-zero if the cast from mode src to mode dst is a
+ * reinterpret cast (ie. only the bit pattern is reinterpreted,
+ * no conversion is done)
+ */
+int is_reinterpret_cast(const ir_mode *src, const ir_mode *dst) {
+ ir_mode_arithmetic ma;
+
+ if (src == dst)
+ return 1;
+ if (get_mode_size_bits(src) != get_mode_size_bits(dst))
+ return 0;
+ ma = get_mode_arithmetic(src);
+ if (ma != get_mode_arithmetic(dst))
+ return 0;
+
+ return ma == irma_twos_complement || ma == irma_ones_complement;
}
void finish_mode(void) {
- obstack_free(&modes, 0);
-
- mode_T = NULL;
- mode_X = NULL;
- mode_M = NULL;
- mode_BB = NULL;
- mode_ANY = NULL;
- mode_BAD = NULL;
-
- mode_F = NULL;
- mode_D = NULL;
- mode_E = NULL;
-
- 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_code = NULL;
- mode_P_data = NULL;
+ 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;
}