/*
- * 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.
+ * Copyright (C) 2012 University of Karlsruhe.
*/
/**
* @file
* @brief Data modes of operations.
* @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Mathias Heil
- * @version $Id$
*/
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-# include <string.h>
-#endif
-
-# include <stddef.h>
-
-# include "irprog_t.h"
-# include "irmode_t.h"
-# include "ident.h"
-# include "tv_t.h"
-# include "obst.h"
-# include "irhooks.h"
-# include "irtools.h"
-
-/* * *
- * local values
- * * */
-
-
-/** dynamic array to hold all modes */
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include "irprog_t.h"
+#include "irmode_t.h"
+#include "ident.h"
+#include "tv_t.h"
+#include "obst.h"
+#include "irhooks.h"
+#include "irtools.h"
+#include "array.h"
+#include "error.h"
+#include "pattern_dmp.h"
+
+/** Obstack to hold all modes. */
static struct obstack modes;
-/** number of defined modes */
-static int num_modes = 0;
-
-/* * *
- * local functions
- * * */
-
-/**
- * Compare modes that don't need to have their code field
- * correctly set
- *
- * TODO: Add other fields
- **/
-INLINE static int modes_are_equal(const ir_mode *m, const ir_mode *n) {
- if (m == n) return 1;
- if (m->sort == n->sort &&
- m->arithmetic == n->arithmetic &&
- m->size == n->size &&
- m->sign == n->sign &&
- m->modulo_shift == n->modulo_shift &&
- m->vector_elem == n->vector_elem)
- return 1;
-
- return 0;
-}
-
-/*
- * calculates the next obstack address
- */
-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;
+/** The list of all currently existing modes. */
+static ir_mode **mode_list;
- return INT_TO_PTR(adr & ~mask);
+static bool modes_are_equal(const ir_mode *m, const ir_mode *n)
+{
+ return m->sort == n->sort &&
+ m->arithmetic == n->arithmetic &&
+ m->size == n->size &&
+ m->sign == n->sign &&
+ m->modulo_shift == n->modulo_shift;
}
/**
* 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));
+static ir_mode *find_mode(const ir_mode *m)
+{
+ size_t i, n_modes;
+ for (i = 0, n_modes = ARR_LEN(mode_list); i < n_modes; ++i) {
+ ir_mode *n = mode_list[i];
if (modes_are_equal(n, m))
return n;
-
- 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;
}
/**
* sets special values of modes
*/
-static void set_mode_values(ir_mode* mode) {
+static void set_mode_values(ir_mode* mode)
+{
switch (get_mode_sort(mode)) {
case irms_reference:
case irms_int_number:
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) {
+ if (get_mode_sort(mode) != irms_float_number) {
mode->all_one = get_tarval_all_one(mode);
} else {
mode->all_one = tarval_bad;
mode->all_one = tarval_b_true;
break;
- case irms_auxiliary:
- case irms_memory:
case irms_control_flow:
+ case irms_block:
+ case irms_tuple:
+ case irms_any:
+ case irms_bad:
+ case irms_memory:
mode->min = tarval_bad;
mode->max = tarval_bad;
mode->null = tarval_bad;
}
}
-/* * *
- * globals defined in irmode.h
- * * */
-
-/* --- Predefined modes --- */
-
-/* FIRM internal modes: */
ir_mode *mode_T;
ir_mode *mode_X;
ir_mode *mode_M;
ir_mode *mode_ANY;
ir_mode *mode_BAD;
-/* predefined numerical modes: */
-ir_mode *mode_F; /* float */
-ir_mode *mode_D; /* double */
-ir_mode *mode_E; /* long double */
+ir_mode *mode_F;
+ir_mode *mode_D;
+ir_mode *mode_Q;
-ir_mode *mode_Bs; /* integral values, signed and unsigned */
-ir_mode *mode_Bu; /* 8 bit */
-ir_mode *mode_Hs; /* 16 bit */
+ir_mode *mode_Bs;
+ir_mode *mode_Bu;
+ir_mode *mode_Hs;
ir_mode *mode_Hu;
-ir_mode *mode_Is; /* 32 bit */
+ir_mode *mode_Is;
ir_mode *mode_Iu;
-ir_mode *mode_Ls; /* 64 bit */
+ir_mode *mode_Ls;
ir_mode *mode_Lu;
-ir_mode *mode_LLs; /* 128 bit */
+ir_mode *mode_LLs;
ir_mode *mode_LLu;
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;
+ir_mode *mode_P_data;
-/* * *
- * functions defined in irmode.h
- * * */
-
-/* JNI access functions */
ir_mode *get_modeT(void) { return mode_T; }
ir_mode *get_modeF(void) { return mode_F; }
ir_mode *get_modeD(void) { return mode_D; }
-ir_mode *get_modeE(void) { return mode_E; }
+ir_mode *get_modeQ(void) { return mode_Q; }
ir_mode *get_modeBs(void) { return mode_Bs; }
ir_mode *get_modeBu(void) { return mode_Bu; }
ir_mode *get_modeHs(void) { return mode_Hs; }
ir_mode *get_modeBAD(void) { return mode_BAD; }
-ir_mode *(get_modeP_code)(void) {
- return _get_modeP_code();
+ir_mode *(get_modeP_code)(void)
+{
+ return get_modeP_code_();
}
-ir_mode *(get_modeP_data)(void) {
- return _get_modeP_data();
+ir_mode *(get_modeP_data)(void)
+{
+ return get_modeP_data_();
}
-void set_modeP_code(ir_mode *p) {
+void set_modeP_code(ir_mode *p)
+{
assert(mode_is_reference(p));
mode_P_code = p;
}
-void set_modeP_data(ir_mode *p) {
+void set_modeP_data(ir_mode *p)
+{
assert(mode_is_reference(p));
mode_P_data = p;
+ mode_P = p;
}
-/**
- * Registers a new mode.
- *
- * @param new_mode The new mode template.
+/*
+ * Creates a new mode.
*/
-static ir_mode *register_mode(const ir_mode *new_mode) {
- ir_mode *mode = NULL;
-
- assert(new_mode);
+static ir_mode *alloc_mode(const char *name, ir_mode_sort sort,
+ ir_mode_arithmetic arithmetic, unsigned bit_size,
+ int sign, unsigned modulo_shift)
+{
+ ir_mode *mode_tmpl = OALLOCZ(&modes, ir_mode);
- /* copy mode struct to modes array */
- mode = (ir_mode *)obstack_copy(&modes, new_mode, sizeof(*mode));
+ mode_tmpl->name = new_id_from_str(name);
+ mode_tmpl->sort = sort;
+ mode_tmpl->size = bit_size;
+ mode_tmpl->sign = sign ? 1 : 0;
+ mode_tmpl->modulo_shift = modulo_shift;
+ mode_tmpl->arithmetic = arithmetic;
+ mode_tmpl->link = NULL;
+ mode_tmpl->tv_priv = NULL;
+ return mode_tmpl;
+}
- mode->kind = k_ir_mode;
- if (num_modes >= irm_max) {
- mode->code = num_modes;
+static ir_mode *register_mode(ir_mode *mode)
+{
+ /* does any of the existing modes have the same properties? */
+ ir_mode *old = find_mode(mode);
+ if (old != NULL) {
+ /* remove new mode from obstack */
+ obstack_free(&modes, mode);
+ return old;
}
- num_modes++;
-
- /* add the new mode to the irp list of modes */
- add_irp_mode(mode);
+ mode->kind = k_ir_mode;
+ mode->type = new_type_primitive(mode);
+ ARR_APP1(ir_mode*, mode_list, mode);
set_mode_values(mode);
-
- hook_new_mode(new_mode, mode);
+ hook_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 mode_tmpl;
- ir_mode *mode = NULL;
-
- mode_tmpl.name = new_id_from_str(name);
- mode_tmpl.sort = sort;
- mode_tmpl.size = bit_size;
- mode_tmpl.sign = sign ? 1 : 0;
- mode_tmpl.modulo_shift = (mode_tmpl.sort == irms_int_number) ? modulo_shift : 0;
- mode_tmpl.vector_elem = 1;
- mode_tmpl.arithmetic = arithmetic;
- mode_tmpl.link = NULL;
- mode_tmpl.tv_priv = NULL;
-
- mode = find_mode(&mode_tmpl);
- if (mode) {
- hook_new_mode(&mode_tmpl, mode);
- return mode;
- }
-
- /* sanity checks */
- switch (sort) {
- case irms_auxiliary:
- case irms_control_flow:
- case irms_memory:
- case irms_internal_boolean:
- assert(0 && "internal modes cannot be user defined");
- break;
-
- case irms_float_number:
- case irms_int_number:
- case irms_reference:
- mode = register_mode(&mode_tmpl);
- }
- return mode;
+ir_mode *new_int_mode(const char *name, ir_mode_arithmetic arithmetic,
+ unsigned bit_size, int sign, unsigned modulo_shift)
+{
+ ir_mode *result = alloc_mode(name, irms_int_number, arithmetic, bit_size,
+ sign, modulo_shift);
+ return register_mode(result);
}
-/*
- * 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");
- return NULL;
- }
-
- /* sanity checks */
- switch (sort) {
- case irms_auxiliary:
- case irms_control_flow:
- case irms_memory:
- case irms_internal_boolean:
- assert(0 && "internal modes cannot be user defined");
- break;
-
- case irms_reference:
- assert(0 && "only integer and floating point modes can be vectorized");
- break;
-
- case irms_float_number:
- assert(0 && "not yet implemented");
- break;
+ir_mode *new_reference_mode(const char *name, ir_mode_arithmetic arithmetic,
+ unsigned bit_size, unsigned modulo_shift)
+{
+ ir_mode *result = alloc_mode(name, irms_reference, arithmetic, bit_size,
+ 0, modulo_shift);
+ return register_mode(result);
+}
- case irms_int_number:
- mode = register_mode(&mode_tmpl);
+ir_mode *new_float_mode(const char *name, ir_mode_arithmetic arithmetic,
+ unsigned exponent_size, unsigned mantissa_size)
+{
+ bool explicit_one = false;
+ unsigned bit_size = exponent_size + mantissa_size + 1;
+ ir_mode *result;
+
+ if (arithmetic == irma_x86_extended_float) {
+ explicit_one = true;
+ bit_size++;
+ } else if (arithmetic != irma_ieee754) {
+ panic("Arithmetic %s invalid for float");
}
- return mode;
-}
+ if (exponent_size >= 256)
+ panic("Exponents >= 256 bits not supported");
+ if (mantissa_size >= 256)
+ panic("Mantissa >= 256 bits not supported");
-/* Functions for the direct access to all attributes of an ir_mode */
-modecode (get_mode_modecode)(const ir_mode *mode) {
- return _get_mode_modecode(mode);
+ result = alloc_mode(name, irms_float_number, irma_x86_extended_float, bit_size, 1, 0);
+ result->float_desc.exponent_size = exponent_size;
+ result->float_desc.mantissa_size = mantissa_size;
+ result->float_desc.explicit_one = explicit_one;
+ return register_mode(result);
}
-ident *(get_mode_ident)(const ir_mode *mode) {
- 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) {
+const char *get_mode_name(const ir_mode *mode)
+{
return get_id_str(mode->name);
}
-mode_sort (get_mode_sort)(const ir_mode* mode) {
- return _get_mode_sort(mode);
-}
-
-unsigned (get_mode_size_bits)(const ir_mode *mode) {
- return _get_mode_size_bits(mode);
+unsigned (get_mode_size_bits)(const ir_mode *mode)
+{
+ return get_mode_size_bits_(mode);
}
-unsigned (get_mode_size_bytes)(const ir_mode *mode) {
- 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) {
- return _get_mode_sign(mode);
+int (get_mode_sign)(const ir_mode *mode)
+{
+ return get_mode_sign_(mode);
}
-mode_arithmetic (get_mode_arithmetic)(const ir_mode *mode) {
- return get_mode_arithmetic(mode);
+ir_mode_arithmetic (get_mode_arithmetic)(const ir_mode *mode)
+{
+ return get_mode_arithmetic_(mode);
}
-/* Attribute modulo shift specifies for modes of kind irms_int_number
- * whether shift applies modulo to value of bits to shift. Asserts
- * if mode is not irms_int_number.
- */
-unsigned int (get_mode_modulo_shift)(const ir_mode *mode) {
- return _get_mode_modulo_shift(mode);
-}
-
-unsigned int (get_mode_n_vector_elems)(const ir_mode *mode) {
- return _get_mode_vector_elems(mode);
+unsigned int (get_mode_modulo_shift)(const ir_mode *mode)
+{
+ return get_mode_modulo_shift_(mode);
}
-void *(get_mode_link)(const ir_mode *mode) {
- 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) {
+ir_tarval *get_mode_min(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_data(mode));
return mode->min;
}
-tarval *get_mode_max(ir_mode *mode) {
+ir_tarval *get_mode_max(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_data(mode));
return mode->max;
}
-tarval *get_mode_null(ir_mode *mode) {
+ir_tarval *get_mode_null(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_datab(mode));
return mode->null;
}
-tarval *get_mode_one(ir_mode *mode) {
+ir_tarval *get_mode_one(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_datab(mode));
return mode->one;
}
-tarval *get_mode_minus_one(ir_mode *mode) {
+ir_tarval *get_mode_minus_one(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_data(mode));
return mode->minus_one;
}
-tarval *get_mode_all_one(ir_mode *mode) {
+ir_tarval *get_mode_all_one(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_datab(mode));
return mode->all_one;
}
-tarval *get_mode_infinite(ir_mode *mode) {
+ir_tarval *get_mode_infinite(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_float(mode));
return get_tarval_plus_inf(mode);
}
-tarval *get_mode_NAN(ir_mode *mode) {
+ir_tarval *get_mode_NAN(ir_mode *mode)
+{
assert(mode);
- assert(get_mode_modecode(mode) < (modecode) num_modes);
assert(mode_is_float(mode));
return get_tarval_nan(mode);
}
-int is_mode(void *thing) {
- if (get_kind(thing) == k_ir_mode)
- return 1;
- else
- return 0;
+int is_mode(const void *thing)
+{
+ return get_kind(thing) == k_ir_mode;
}
-int (mode_is_signed)(const ir_mode *mode) {
- return _mode_is_signed(mode);
+int (mode_is_signed)(const ir_mode *mode)
+{
+ return mode_is_signed_(mode);
}
-int (mode_is_float)(const ir_mode *mode) {
- return _mode_is_float(mode);
+int (mode_is_float)(const ir_mode *mode)
+{
+ return mode_is_float_(mode);
}
-int (mode_is_int)(const ir_mode *mode) {
- return _mode_is_int(mode);
+int (mode_is_int)(const ir_mode *mode)
+{
+ return mode_is_int_(mode);
}
-int (mode_is_reference)(const ir_mode *mode) {
- return _mode_is_reference(mode);
+int (mode_is_reference)(const ir_mode *mode)
+{
+ return mode_is_reference_(mode);
}
-int (mode_is_num)(const ir_mode *mode) {
- return _mode_is_num(mode);
+int (mode_is_num)(const ir_mode *mode)
+{
+ return mode_is_num_(mode);
}
-int (mode_is_data)(const ir_mode *mode) {
- return _mode_is_data(mode);
+int (mode_is_data)(const ir_mode *mode)
+{
+ return mode_is_data_(mode);
}
-int (mode_is_datab)(const ir_mode *mode) {
- return _mode_is_datab(mode);
+int (mode_is_datab)(const ir_mode *mode)
+{
+ return mode_is_datab_(mode);
}
-int (mode_is_dataM)(const ir_mode *mode) {
- return _mode_is_dataM(mode);
+int (mode_is_dataM)(const ir_mode *mode)
+{
+ return mode_is_dataM_(mode);
}
-int (mode_is_float_vector)(const ir_mode *mode) {
- return _mode_is_float_vector(mode);
+unsigned (get_mode_mantissa_size)(const ir_mode *mode)
+{
+ return get_mode_mantissa_size_(mode);
}
-int (mode_is_int_vector)(const ir_mode *mode) {
- return _mode_is_int_vector(mode);
+unsigned (get_mode_exponent_size)(const ir_mode *mode)
+{
+ return get_mode_exponent_size_(mode);
}
-/* Returns true if sm can be converted to lm without loss. */
-int smaller_mode(const ir_mode *sm, const ir_mode *lm) {
+int smaller_mode(const ir_mode *sm, const ir_mode *lm)
+{
int sm_bits, lm_bits;
assert(sm);
case irms_int_number:
switch (get_mode_sort(lm)) {
case irms_int_number:
- if(get_mode_arithmetic(sm) != get_mode_arithmetic(lm))
+ if (get_mode_arithmetic(sm) != get_mode_arithmetic(lm))
return 0;
/* only two complement implemented */
- assert(get_mode_arithmetic(sm)==irma_twos_complement);
+ assert(get_mode_arithmetic(sm) == irma_twos_complement);
/* integers are convertable if
* - both have the same sign and lm is the larger one
* (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))
+ if (mode_is_signed(sm)) {
+ if (!mode_is_signed(lm))
return 0;
return sm_bits <= lm_bits;
} else {
- if(mode_is_signed(lm)) {
+ if (mode_is_signed(lm)) {
return sm_bits < lm_bits;
}
return sm_bits <= lm_bits;
}
- break;
case irms_float_number:
/* int to float works if the float is large enough */
break;
case irms_reference:
- /* do exist machines out there with different pointer lenghts ?*/
+ /* do exist machines out there with different pointer lengths ?*/
return 0;
case irms_internal_boolean:
return 0;
}
-/* Return the signed integer equivalent mode for an reference mode. */
-ir_mode *get_reference_mode_signed_eq(ir_mode *mode) {
+int values_in_mode(const ir_mode *sm, const ir_mode *lm)
+{
+ if (sm == lm)
+ return true;
+
+ if (sm == mode_b)
+ return mode_is_int(lm) || mode_is_float(lm);
+
+ ir_mode_arithmetic larith = get_mode_arithmetic(lm);
+ ir_mode_arithmetic sarith = get_mode_arithmetic(sm);
+ switch (larith) {
+ case irma_x86_extended_float:
+ case irma_ieee754:
+ if (sarith == irma_ieee754 || sarith == irma_x86_extended_float) {
+ return get_mode_size_bits(sm) <= get_mode_size_bits(lm);
+ } else if (sarith == irma_twos_complement) {
+ unsigned int_mantissa = get_mode_size_bits(sm) - (mode_is_signed(sm) ? 1 : 0);
+ unsigned float_mantissa = get_mode_mantissa_size(lm) + 1;
+ return int_mantissa <= float_mantissa;
+ }
+ break;
+ case irma_twos_complement:
+ if (sarith == irma_twos_complement) {
+ return get_mode_size_bits(sm) <= get_mode_size_bits(lm);
+ }
+ break;
+ case irma_none:
+ break;
+ }
+ return false;
+}
+
+ir_mode *get_reference_mode_signed_eq(ir_mode *mode)
+{
assert(mode_is_reference(mode));
return mode->eq_signed;
}
-/* Sets the signed integer equivalent mode for an reference mode. */
-void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode) {
+void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode)
+{
assert(mode_is_reference(ref_mode));
assert(mode_is_int(int_mode));
ref_mode->eq_signed = int_mode;
}
-/* Return the unsigned integer equivalent mode for an reference mode. */
-ir_mode *get_reference_mode_unsigned_eq(ir_mode *mode) {
+ir_mode *get_reference_mode_unsigned_eq(ir_mode *mode)
+{
assert(mode_is_reference(mode));
return mode->eq_unsigned;
}
-/* Sets the unsigned integer equivalent mode for an reference mode. */
-void set_reference_mode_unsigned_eq(ir_mode *ref_mode, ir_mode *int_mode) {
+void set_reference_mode_unsigned_eq(ir_mode *ref_mode, ir_mode *int_mode)
+{
assert(mode_is_reference(ref_mode));
assert(mode_is_int(int_mode));
ref_mode->eq_unsigned = int_mode;
}
-/* initialization, build the default modes */
-void init_mode(void) {
- ir_mode newmode;
+static ir_mode *new_internal_mode(const char *name, ir_mode_sort sort)
+{
+ ir_mode *mode = alloc_mode(name, sort, irma_none, 0, 0, 0);
+ return register_mode(mode);
+}
+void init_mode(void)
+{
obstack_init(&modes);
+ mode_list = NEW_ARR_F(ir_mode*, 0);
- num_modes = 0;
/* initialize predefined modes */
-
- /* Internal Modes */
- newmode.arithmetic = irma_none;
- newmode.size = 0;
- newmode.sign = 0;
- newmode.modulo_shift = 0;
- newmode.vector_elem = 0;
- newmode.eq_signed = NULL;
- newmode.eq_unsigned = NULL;
- newmode.link = NULL;
- newmode.tv_priv = NULL;
-
- /* Control Flow Modes*/
- newmode.sort = irms_control_flow;
-
- /* Basic Block */
- newmode.name = new_id_from_chars("BB", 2);
- newmode.code = irm_BB;
-
- mode_BB = register_mode(&newmode);
-
- /* eXecution */
- newmode.name = new_id_from_chars("X", 1);
- newmode.code = irm_X;
-
- mode_X = register_mode(&newmode);
-
- /* Memory Modes */
- newmode.sort = irms_memory;
-
- /* Memory */
- newmode.name = new_id_from_chars("M", 1);
- newmode.code = irm_M;
-
- mode_M = register_mode(&newmode);
-
- /* Auxiliary Modes */
- newmode.sort = irms_auxiliary,
-
- /* Tuple */
- newmode.name = new_id_from_chars("T", 1);
- newmode.code = irm_T;
-
- mode_T = register_mode(&newmode);
-
- /* ANY */
- newmode.name = new_id_from_chars("ANY", 3);
- newmode.code = irm_ANY;
-
- mode_ANY = register_mode(&newmode);
-
- /* BAD */
- newmode.name = new_id_from_chars("BAD", 3);
- newmode.code = irm_BAD;
-
- mode_BAD = register_mode(&newmode);
-
- /* Internal Boolean Modes */
- newmode.sort = irms_internal_boolean;
-
- /* boolean */
- newmode.name = new_id_from_chars("b", 1);
- newmode.code = irm_b;
-
- mode_b = register_mode(&newmode);
-
- /* Data Modes */
- newmode.vector_elem = 1;
-
- /* Float Number Modes */
- newmode.sort = irms_float_number;
- newmode.arithmetic = irma_ieee754;
-
- /* float */
- newmode.name = new_id_from_chars("F", 1);
- newmode.code = irm_F;
- newmode.sign = 1;
- newmode.size = 32;
-
- mode_F = register_mode(&newmode);
-
- /* double */
- newmode.name = new_id_from_chars("D", 1);
- newmode.code = irm_D;
- newmode.sign = 1;
- newmode.size = 64;
-
- mode_D = register_mode(&newmode);
-
- /* extended */
- newmode.name = new_id_from_chars("E", 1);
- newmode.code = irm_E;
- newmode.sign = 1;
- newmode.size = 80;
-
- mode_E = register_mode(&newmode);
-
- /* Integer Number Modes */
- newmode.sort = irms_int_number;
- newmode.arithmetic = irma_twos_complement;
-
- /* signed byte */
- newmode.name = new_id_from_chars("Bs", 2);
- newmode.code = irm_Bs;
- newmode.sign = 1;
- newmode.size = 8;
- newmode.modulo_shift = 32;
-
- mode_Bs = register_mode(&newmode);
-
- /* unsigned byte */
- newmode.name = new_id_from_chars("Bu", 2);
- newmode.code = irm_Bu;
- newmode.arithmetic = irma_twos_complement;
- newmode.sign = 0;
- newmode.size = 8;
- newmode.modulo_shift = 32;
-
- mode_Bu = register_mode(&newmode);
-
- /* signed short integer */
- newmode.name = new_id_from_chars("Hs", 2);
- newmode.code = irm_Hs;
- newmode.sign = 1;
- newmode.size = 16;
- newmode.modulo_shift = 32;
-
- mode_Hs = register_mode(&newmode);
-
- /* unsigned short integer */
- newmode.name = new_id_from_chars("Hu", 2);
- newmode.code = irm_Hu;
- newmode.sign = 0;
- newmode.size = 16;
- newmode.modulo_shift = 32;
-
- mode_Hu = register_mode(&newmode);
-
- /* signed integer */
- newmode.name = new_id_from_chars("Is", 2);
- newmode.code = irm_Is;
- newmode.sign = 1;
- newmode.size = 32;
- newmode.modulo_shift = 32;
-
- mode_Is = register_mode(&newmode);
-
- /* unsigned integer */
- newmode.name = new_id_from_chars("Iu", 2);
- newmode.code = irm_Iu;
- newmode.sign = 0;
- newmode.size = 32;
- newmode.modulo_shift = 32;
-
- mode_Iu = register_mode(&newmode);
-
- /* signed long integer */
- newmode.name = new_id_from_chars("Ls", 2);
- newmode.code = irm_Ls;
- newmode.sign = 1;
- newmode.size = 64;
- newmode.modulo_shift = 64;
-
- mode_Ls = register_mode(&newmode);
-
- /* unsigned long integer */
- newmode.name = new_id_from_chars("Lu", 2);
- newmode.code = irm_Lu;
- newmode.sign = 0;
- newmode.size = 64;
- newmode.modulo_shift = 64;
-
- mode_Lu = register_mode(&newmode);
-
- /* signed long long integer */
- newmode.name = new_id_from_chars("LLs", 3);
- newmode.code = irm_LLs;
- newmode.sign = 1;
- newmode.size = 128;
- newmode.modulo_shift = 128;
-
- mode_LLs = register_mode(&newmode);
-
- /* unsigned long long integer */
- newmode.name = new_id_from_chars("LLu", 3);
- newmode.code = irm_LLu;
- newmode.sign = 0;
- newmode.size = 128;
- newmode.modulo_shift = 128;
-
- mode_LLu = register_mode(&newmode);
-
- /* Reference Mode */
- newmode.sort = irms_reference;
- newmode.arithmetic = irma_twos_complement;
-
- /* pointer */
- newmode.name = new_id_from_chars("P", 1);
- newmode.code = irm_P;
- newmode.sign = 0;
- newmode.size = 32;
- newmode.modulo_shift = 0;
- newmode.eq_signed = mode_Is;
- newmode.eq_unsigned = mode_Iu;
-
- mode_P = register_mode(&newmode);
+ mode_BB = new_internal_mode("BB", irms_block);
+ mode_X = new_internal_mode("X", irms_control_flow);
+ mode_M = new_internal_mode("M", irms_memory);
+ mode_T = new_internal_mode("T", irms_tuple);
+ mode_ANY = new_internal_mode("ANY", irms_any);
+ mode_BAD = new_internal_mode("BAD", irms_bad);
+ mode_b = new_internal_mode("b", irms_internal_boolean);
+
+ mode_F = new_float_mode("F", irma_ieee754, 8, 23);
+ mode_D = new_float_mode("D", irma_ieee754, 11, 52);
+ mode_Q = new_float_mode("Q", irma_ieee754, 15, 112);
+
+ mode_Bs = new_int_mode("Bs", irma_twos_complement, 8, 1, 32);
+ mode_Bu = new_int_mode("Bu", irma_twos_complement, 8, 0, 32);
+ mode_Hs = new_int_mode("Hs", irma_twos_complement, 16, 1, 32);
+ mode_Hu = new_int_mode("Hu", irma_twos_complement, 16, 0, 32);
+ mode_Is = new_int_mode("Is", irma_twos_complement, 32, 1, 32);
+ mode_Iu = new_int_mode("Iu", irma_twos_complement, 32, 0, 32);
+ mode_Ls = new_int_mode("Ls", irma_twos_complement, 64, 1, 64);
+ mode_Lu = new_int_mode("Lu", irma_twos_complement, 64, 0, 64);
+ mode_LLs = new_int_mode("LLs", irma_twos_complement, 128, 1, 128);
+ mode_LLu = new_int_mode("LLu", irma_twos_complement, 128, 0, 128);
+
+ mode_P = new_reference_mode("P", irma_twos_complement, 32, 32);
+ set_reference_mode_signed_eq(mode_P, mode_Is);
+ set_reference_mode_unsigned_eq(mode_P, mode_Iu);
/* set the machine specific modes to the predefined ones */
mode_P_code = mode_P;
mode_P_data = mode_P;
}
-/* find a signed mode for an unsigned integer mode */
-ir_mode *find_unsigned_mode(const ir_mode *mode) {
+ir_mode *find_unsigned_mode(const ir_mode *mode)
+{
ir_mode n = *mode;
- assert(mode->sort == irms_int_number);
+ /* 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 *find_signed_mode(const ir_mode *mode)
+{
ir_mode n = *mode;
assert(mode->sort == irms_int_number);
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 *find_double_bits_int_mode(const ir_mode *mode)
+{
ir_mode n = *mode;
assert(mode->sort == irms_int_number && mode->arithmetic == irma_twos_complement);
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) {
+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.
*/
mode->arithmetic != irma_ieee754;
}
-/*
- * Returns non-zero if the given mode might overflow on unary Minus.
- *
- * This does NOT happen on IEEE 754.
- */
-int mode_overflow_on_unary_Minus(const ir_mode *mode) {
+int mode_overflow_on_unary_Minus(const ir_mode *mode)
+{
if (mode->sort == irms_float_number)
return mode->arithmetic == irma_ieee754 ? 0 : 1;
return 1;
}
-/*
- * Returns non-zero if the mode has a reversed wrap-around
- * logic, especially (a + x) - x == a.
- *
- * This is normally true for integer modes, not for floating
- * point modes.
- */
-int mode_wrap_around(const ir_mode *mode) {
+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) {
+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;
+}
+
+ir_type *(get_type_for_mode) (const ir_mode *mode)
+{
+ return get_type_for_mode_(mode);
+}
+
+size_t ir_get_n_modes(void)
+{
+ return ARR_LEN(mode_list);
+}
+
+ir_mode *ir_get_mode(size_t num)
+{
+ assert(num < ARR_LEN(mode_list));
+ return mode_list[num];
+}
+
+void finish_mode(void)
+{
obstack_free(&modes, 0);
+ DEL_ARR_F(mode_list);
mode_T = NULL;
mode_X = NULL;
mode_F = NULL;
mode_D = NULL;
- mode_E = NULL;
mode_Bs = NULL;
mode_Bu = NULL;
projects / libfirm / blobdiff