-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-*/
-
-/* $Id$ */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-# include "irmode_t.h"
-# include "ident.h"
-# include <stdlib.h>
-# include <stddef.h>
-# include <string.h>
-# include "tv.h"
-# include "obst.h"
-# include "misc.h"
-
-#if 0
-static long long count = 0;
-# define ANNOUNCE() printf(__FILE__": call no. %lld (%s)\n", count++, __FUNCTION__)
-#else
-# define ANNOUNCE() ((void)0)
-#endif
-
-/* * *
- * local values
- * * */
-
-
-/** dynamic array to hold all modes */
-static struct obstack modes;
+/*
+ * This file is part of libFirm.
+ * Copyright (C) 2012 University of Karlsruhe.
+ */
-/** number of defined modes */
-static int num_modes;
+/**
+ * @file
+ * @brief Data modes of operations.
+ * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Mathias Heil
+ */
+#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;
-/* * *
- * local functions
- * * */
+/** The list of all currently existing modes. */
+static ir_mode **mode_list;
-/**
- * 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)
+static bool modes_are_equal(const ir_mode *m, const ir_mode *n)
{
- if (m == n) return 1;
- if (0 == memcmp(&m->sort, &n->sort, offsetof(ir_mode,min) - offsetof(ir_mode,sort))) return 1;
-
- return 0;
+ return m->sort == n->sort &&
+ m->arithmetic == n->arithmetic &&
+ m->size == n->size &&
+ m->sign == n->sign &&
+ m->modulo_shift == n->modulo_shift;
}
/**
*/
static ir_mode *find_mode(const ir_mode *m)
{
- ir_mode *n;
- struct _obstack_chunk *p;
-
- p=modes.chunk;
- for( n=(ir_mode*) p->contents; (char *)n < modes.next_free; n+=sizeof(ir_mode) )
- {
- if(modes_are_equal(n,m)) return n;
- }
-
- for (p = p->prev; p; p = p->prev)
- {
- for( n=(ir_mode*) p->contents; (char *)n < p->limit; n+=sizeof(ir_mode) )
- {
- if(modes_are_equal(n,m)) return n;
- }
- }
-
- return NULL;
+ 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;
+ }
+ return NULL;
}
/**
*/
static void set_mode_values(ir_mode* mode)
{
- switch (get_mode_sort(mode))
- {
- case irms_int_number:
- case irms_float_number:
- mode->min = get_tarval_min(mode);
- mode->max = get_tarval_max(mode);
- mode->null = get_tarval_null(mode);
- mode->one = get_tarval_one(mode);
- break;
-
- case irms_internal_boolean:
- mode->min = tarval_b_false;
- mode->max = tarval_b_true;
- mode->null = tarval_b_false;
- mode->one = tarval_b_true;
- break;
-
- case irms_reference:
- mode->min = tarval_bad;
- mode->max = tarval_bad;
- mode->null = (get_mode_modecode(mode)==irm_P)?tarval_P_void:tarval_bad;
- mode->one = tarval_bad;
- break;
-
- case irms_character:
- case irms_auxiliary:
- case irms_memory:
- case irms_control_flow:
- mode->min = tarval_bad;
- mode->max = tarval_bad;
- mode->null = tarval_bad;
- mode->one = tarval_bad;
- break;
- }
-}
-
-/* * *
- * globals defined in irmode.h
- * * */
-
-/* --- Predefined modes --- */
-
-/* FIRM internal modes: */
+ 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_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;
+ mode->one = tarval_bad;
+ mode->minus_one = tarval_bad;
+ break;
+ }
+}
+
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;
+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_mach; /* machine specific pointer mode */
-
-/* * *
- * functions defined in irmode.h
- * * */
-
-/* JNI access functions */
-INLINE ir_mode *get_modeT(void) { ANNOUNCE(); return mode_T; }
-INLINE ir_mode *get_modeF(void) { ANNOUNCE(); return mode_F; }
-INLINE ir_mode *get_modeD(void) { ANNOUNCE(); return mode_D; }
-INLINE ir_mode *get_modeE(void) { ANNOUNCE(); return mode_E; }
-INLINE ir_mode *get_modeBs(void) { ANNOUNCE(); return mode_Bs; }
-INLINE ir_mode *get_modeBu(void) { ANNOUNCE(); return mode_Bu; }
-INLINE ir_mode *get_modeHs(void) { ANNOUNCE(); return mode_Hs; }
-INLINE ir_mode *get_modeHu(void) { ANNOUNCE(); return mode_Hu; }
-INLINE ir_mode *get_modeIs(void) { ANNOUNCE(); return mode_Is; }
-INLINE ir_mode *get_modeIu(void) { ANNOUNCE(); return mode_Iu; }
-INLINE ir_mode *get_modeLs(void) { ANNOUNCE(); return mode_Ls; }
-INLINE ir_mode *get_modeLu(void) { ANNOUNCE(); return mode_Lu; }
-INLINE ir_mode *get_modeC(void) { ANNOUNCE(); return mode_C; }
-INLINE ir_mode *get_modeU(void) { ANNOUNCE(); return mode_U; }
-INLINE ir_mode *get_modeb(void) { ANNOUNCE(); return mode_b; }
-INLINE ir_mode *get_modeP(void) { ANNOUNCE(); return mode_P; }
-INLINE ir_mode *get_modeX(void) { ANNOUNCE(); return mode_X; }
-INLINE ir_mode *get_modeM(void) { ANNOUNCE(); return mode_M; }
-INLINE ir_mode *get_modeBB(void) { ANNOUNCE(); return mode_BB; }
-INLINE ir_mode *get_modeANY(void) { ANNOUNCE(); return mode_ANY; }
-INLINE ir_mode *get_modeBAD(void) { ANNOUNCE(); return mode_BAD; }
-
-
-ir_mode *get_modeP_mach(void) { ANNOUNCE(); return mode_P_mach; }
-void set_modeP_mach(ir_mode *p) {
- ANNOUNCE();
- assert(mode_is_reference(p));
- mode_P_mach = p;
- }
+ir_mode *mode_P_code;
+ir_mode *mode_P_data;
-/**
- * Registers a new mode if not defined yet, else returns
- * the "equivalent" one.
- */
-static ir_mode *register_mode(const ir_mode* new_mode)
-{
- ir_mode *mode = NULL;
+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_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_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; }
- ANNOUNCE();
- assert(new_mode);
- /* copy mode struct to modes array */
- mode=(ir_mode*) obstack_copy(&modes, new_mode, sizeof(ir_mode));
+ir_mode *(get_modeP_code)(void)
+{
+ return get_modeP_code_();
+}
- mode->kind = k_ir_mode;
- if(num_modes>=irm_max) mode->code = num_modes;
- num_modes++;
+ir_mode *(get_modeP_data)(void)
+{
+ return get_modeP_data_();
+}
- set_mode_values(mode);
+void set_modeP_code(ir_mode *p)
+{
+ assert(mode_is_reference(p));
+ mode_P_code = p;
+}
- return mode;
+void set_modeP_data(ir_mode *p)
+{
+ assert(mode_is_reference(p));
+ mode_P_data = p;
+ mode_P = p;
}
/*
* Creates a new mode.
*/
-ir_mode *new_ir_mode(const char *name, mode_sort sort, int bit_size, int align, int sign, mode_arithmetic arithmetic )
-{
- ir_mode mode_tmpl;
- ir_mode *mode;
-
- /* sanity checks */
- switch (sort)
- {
- case irms_auxiliary:
- case irms_control_flow:
- case irms_memory:
- case irms_internal_boolean:
- assert(0 && "internal modes cannot be user defined");
- return NULL;
- break;
-
- case irms_float_number:
- if(arithmetic != irma_ieee754) {
- assert(0 && "not yet implemented");
- return NULL;
- }
- break;
+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);
+
+ 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;
+}
- case irms_int_number:
- case irms_reference:
- case irms_character:
- break;
- }
- mode_tmpl.name = new_id_from_str(name);
- mode_tmpl.sort = sort;
- mode_tmpl.size = bit_size;
- mode_tmpl.align = align;
- mode_tmpl.sign = sign ? 1 : 0;
- mode_tmpl.arithmetic = arithmetic;
- mode_tmpl.link = NULL;
- mode_tmpl.tv_priv = NULL;
+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;
+ }
+
+ 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(mode);
+ 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);
+}
+
+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);
+}
+
+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");
+ }
+ if (exponent_size >= 256)
+ panic("Exponents >= 256 bits not supported");
+ if (mantissa_size >= 256)
+ panic("Mantissa >= 256 bits not supported");
+
+ 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);
+}
- /* first check if there already is a matching mode */
- mode = find_mode(&mode_tmpl);
- if (mode)
- {
- return mode;
- }
- else
- {
- return register_mode(&mode_tmpl);
- }
+ident *(get_mode_ident)(const ir_mode *mode)
+{
+ return get_mode_ident_(mode);
+}
+
+const char *get_mode_name(const ir_mode *mode)
+{
+ return get_id_str(mode->name);
+}
+
+unsigned (get_mode_size_bits)(const ir_mode *mode)
+{
+ return get_mode_size_bits_(mode);
}
-/* Functions for the direct access to all attributes od a ir_mode */
-modecode
-get_mode_modecode(const ir_mode *mode)
+unsigned (get_mode_size_bytes)(const ir_mode *mode)
{
- ANNOUNCE();
- return mode->code;
+ return get_mode_size_bytes_(mode);
}
-ident *
-get_mode_ident(const ir_mode *mode)
+int (get_mode_sign)(const ir_mode *mode)
+{
+ return get_mode_sign_(mode);
+}
+
+ir_mode_arithmetic (get_mode_arithmetic)(const ir_mode *mode)
+{
+ return get_mode_arithmetic_(mode);
+}
+
+
+unsigned int (get_mode_modulo_shift)(const ir_mode *mode)
{
- ANNOUNCE();
- return mode->name;
+ return get_mode_modulo_shift_(mode);
}
-const char *
-get_mode_name(const ir_mode *mode)
+void *(get_mode_link)(const ir_mode *mode)
{
- ANNOUNCE();
- return id_to_str(mode->name);
+ return get_mode_link_(mode);
}
-mode_sort
-get_mode_sort(const ir_mode* mode)
+void (set_mode_link)(ir_mode *mode, void *l)
{
- ANNOUNCE();
- return mode->sort;
+ set_mode_link_(mode, l);
}
-INLINE int
-get_mode_size_bits(const ir_mode *mode)
+ir_tarval *get_mode_min(ir_mode *mode)
{
- ANNOUNCE();
- return mode->size;
+ assert(mode);
+ assert(mode_is_data(mode));
+
+ return mode->min;
}
-int get_mode_size_bytes(const ir_mode *mode) {
- int size = get_mode_size_bits(mode);
- ANNOUNCE();
- if ((size & 7) != 0) return -1;
- return size >> 3;
+ir_tarval *get_mode_max(ir_mode *mode)
+{
+ assert(mode);
+ assert(mode_is_data(mode));
+
+ return mode->max;
}
-int
-get_mode_align (const ir_mode *mode)
+ir_tarval *get_mode_null(ir_mode *mode)
{
- ANNOUNCE();
- return mode->align;
+ assert(mode);
+ assert(mode_is_datab(mode));
+
+ return mode->null;
}
-int
-get_mode_sign (const ir_mode *mode)
+ir_tarval *get_mode_one(ir_mode *mode)
{
- ANNOUNCE();
- return mode->sign;
+ assert(mode);
+ assert(mode_is_datab(mode));
+
+ return mode->one;
}
-int get_mode_arithmetic (const ir_mode *mode)
+ir_tarval *get_mode_minus_one(ir_mode *mode)
{
- ANNOUNCE();
- return mode->arithmetic;
+ assert(mode);
+ assert(mode_is_data(mode));
+
+ return mode->minus_one;
}
-void* get_mode_link(const ir_mode *mode)
+ir_tarval *get_mode_all_one(ir_mode *mode)
{
- ANNOUNCE();
- return mode->link;
+ assert(mode);
+ assert(mode_is_datab(mode));
+ return mode->all_one;
}
-void set_mode_link(ir_mode *mode, void *l)
+ir_tarval *get_mode_infinite(ir_mode *mode)
{
- mode->link=l;
- return;
+ assert(mode);
+ assert(mode_is_float(mode));
+
+ return get_tarval_plus_inf(mode);
}
-tarval *
-get_mode_min (ir_mode *mode)
+ir_tarval *get_mode_NAN(ir_mode *mode)
{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+ assert(mode);
+ assert(mode_is_float(mode));
- return mode->min;
+ return get_tarval_nan(mode);
}
-tarval *
-get_mode_max (ir_mode *mode)
+int is_mode(const void *thing)
{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+ return get_kind(thing) == k_ir_mode;
+}
- return mode->max;
+int (mode_is_signed)(const ir_mode *mode)
+{
+ return mode_is_signed_(mode);
}
-tarval *
-get_mode_null (ir_mode *mode)
+int (mode_is_float)(const ir_mode *mode)
{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+ return mode_is_float_(mode);
+}
- return mode->null;
+int (mode_is_int)(const ir_mode *mode)
+{
+ return mode_is_int_(mode);
}
-tarval *
-get_mode_one (ir_mode *mode)
+int (mode_is_reference)(const ir_mode *mode)
{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_data(mode));
+ return mode_is_reference_(mode);
+}
- return mode->one;
+int (mode_is_num)(const ir_mode *mode)
+{
+ return mode_is_num_(mode);
}
-tarval *
-get_mode_infinite(ir_mode *mode)
+int (mode_is_data)(const ir_mode *mode)
{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_float(mode));
+ return mode_is_data_(mode);
+}
- return get_tarval_inf(mode);
+int (mode_is_datab)(const ir_mode *mode)
+{
+ return mode_is_datab_(mode);
}
-tarval *
-get_mode_NAN(ir_mode *mode)
+int (mode_is_dataM)(const ir_mode *mode)
{
- ANNOUNCE();
- assert(mode);
- assert(get_mode_modecode(mode) < num_modes);
- assert(mode_is_float(mode));
+ return mode_is_dataM_(mode);
+}
- return get_tarval_nan(mode);
+unsigned (get_mode_mantissa_size)(const ir_mode *mode)
+{
+ return get_mode_mantissa_size_(mode);
}
-int
-is_mode (void *thing) {
- assert(thing);
- if (get_kind(thing) == k_ir_mode)
- return 1;
- else
- return 0;
+unsigned (get_mode_exponent_size)(const ir_mode *mode)
+{
+ return get_mode_exponent_size_(mode);
}
-/* 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
+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;
- The set of "float" is defined as:
- ---------------------------------
- float = {irm_F, irm_D, irm_E}
+ sm_bits = get_mode_size_bits(sm);
+ lm_bits = get_mode_size_bits(lm);
- The set of "int" is defined as:
- -------------------------------
- int = {irm_Bs, irm_Bu, irm_Hs, irm_Hu, irm_Is, irm_Iu, irm_Ls, irm_Lu}
+ 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;
- The set of "num" is defined as:
- -------------------------------
- num = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu,
- irm_Is, irm_Iu, irm_Ls, irm_Lu}
- = {float || int}
+ /* only two complement implemented */
+ assert(get_mode_arithmetic(sm) == irma_twos_complement);
- The set of "data" is defined as:
- -------------------------------
- data = {irm_F, irm_D, irm_E irm_Bs, irm_Bu, irm_Hs, irm_Hu,
- irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P}
- = {num || irm_C || irm_U || irm_P}
+ /* 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;
+ }
- The set of "datab" is defined as:
- ---------------------------------
- datab = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu,
- irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P, irm_b}
- = {data || irm_b }
+ case irms_float_number:
+ /* int to float works if the float is large enough */
+ return 0;
- The set of "dataM" is defined as:
- ---------------------------------
- dataM = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu,
- irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P, irm_M}
- = {data || irm_M}
-*/
+ default:
+ break;
+ }
+ break;
-#ifdef MODE_ACCESS_DEFINES
-# undef mode_is_signed
-# undef mode_is_float
-# undef mode_is_int
-# undef mode_is_num
-# undef mode_is_numP
-# undef mode_is_data
-# undef mode_is_datab
-# undef mode_is_dataM
-#endif
-int
-mode_is_signed (const ir_mode *mode)
+ 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 lengths ?*/
+ return 0;
+
+ case irms_internal_boolean:
+ return mode_is_int(lm);
+
+ default:
+ break;
+ }
+
+ /* else */
+ return 0;
+}
+
+int values_in_mode(const ir_mode *sm, const ir_mode *lm)
{
- ANNOUNCE();
- assert(mode);
- return mode->sign;
+ 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;
}
-int
-mode_is_float (const ir_mode *mode)
+ir_mode *get_reference_mode_signed_eq(ir_mode *mode)
{
- ANNOUNCE();
- assert(mode);
- return (get_mode_sort(mode) == irms_float_number);
+ assert(mode_is_reference(mode));
+ return mode->eq_signed;
}
-int
-mode_is_int (const ir_mode *mode)
+void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode)
{
- ANNOUNCE();
- assert(mode);
- return (get_mode_sort(mode) == irms_int_number);
+ assert(mode_is_reference(ref_mode));
+ assert(mode_is_int(int_mode));
+ ref_mode->eq_signed = int_mode;
}
-int mode_is_character (const ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- return (get_mode_sort(mode) == irms_character);
+ir_mode *get_reference_mode_unsigned_eq(ir_mode *mode)
+{
+ assert(mode_is_reference(mode));
+ return mode->eq_unsigned;
}
-
-int mode_is_reference (const ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- return (get_mode_sort(mode) == irms_reference);
-}
-
-int
-mode_is_num (const ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- return (mode_is_int(mode) || mode_is_float(mode));
-}
-
-int
-mode_is_numP (const ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- return (mode_is_int(mode) || mode_is_float(mode) || mode_is_reference(mode));
-}
-
-int
-mode_is_data (const ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- return (mode_is_num(mode) || get_mode_sort(mode) == irms_character || get_mode_sort(mode) == irms_reference);
-}
-
-int
-mode_is_datab (const ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- return (mode_is_data(mode) || get_mode_sort(mode) == irms_internal_boolean);
-}
-
-int
-mode_is_dataM (const ir_mode *mode)
-{
- ANNOUNCE();
- assert(mode);
- return (mode_is_data(mode) || get_mode_modecode(mode) == irm_M);
-}
-#ifdef MODE_ACCESS_DEFINES
-# define mode_is_signed(mode) (mode)->sign
-# define mode_is_float(mode) ((mode)->sort == irms_float_number)
-# define mode_is_int(mode) ((mode)->sort == irms_int_number)
-# define mode_is_num(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number))
-# define mode_is_data(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number) || ((mode)->sort == irms_character) || ((mode)->sort == irms_reference))
-# define mode_is_datab(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number) || ((mode)->sort == irms_character) || ((mode)->sort == irms_reference) || ((mode)->sort == irms_internal_boolean))
-# define mode_is_dataM(mode) (((mode)->sort == irms_float_number) || ((mode)->sort == irms_int_number) || ((mode)->sort == irms_character) || ((mode)->sort == irms_reference) || ((mode)->code == irm_M))
-#endif
-/* Returns true if sm can be converted to lm without loss. */
-int
-smaller_mode(const ir_mode *sm, const ir_mode *lm)
+
+void set_reference_mode_unsigned_eq(ir_mode *ref_mode, ir_mode *int_mode)
{
- ANNOUNCE();
- assert(sm);
- assert(lm);
+ assert(mode_is_reference(ref_mode));
+ assert(mode_is_int(int_mode));
+ ref_mode->eq_unsigned = int_mode;
+}
- if (sm == lm) return 1;
+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);
+}
- switch(get_mode_sort(sm))
- {
- case irms_int_number:
- switch(get_mode_sort(lm))
- {
- case irms_int_number:
- /* integers are convertable if
- * - both have the same sign and lm is the larger one
- * - lm is the signed one and is at least two bits larger
- * (one for the sign, one for the highest bit of sm)
- */
- if (mode_is_signed(sm))
- {
- if ( mode_is_signed(lm) && (get_mode_size_bits(lm) > get_mode_size_bits(sm)) )
- return 1;
- }
- else if (mode_is_signed(lm))
- {
- if (get_mode_size_bits(lm) > get_mode_size_bits(sm) + 1)
- return 1;
- }
- else if (get_mode_size_bits(lm) > get_mode_size_bits(sm))
- {
- return 1;
- }
- break;
+void init_mode(void)
+{
+ obstack_init(&modes);
+ mode_list = NEW_ARR_F(ir_mode*, 0);
- case irms_float_number:
- /* int to float works if the float is large enough */
- return 0;
+ /* initialize predefined modes */
+ 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);
- default:
- break;
- }
- break;
+ 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);
- case irms_float_number:
- /* XXX currently only the three standard 32,64,80 bit floats
- * are supported which can safely be converted */
- if ( (get_mode_sort(lm) == irms_float_number)
- && (get_mode_size_bits(lm) > get_mode_size_bits(sm)) )
- return 1;
- break;
+ 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);
- case irms_reference:
- /* do exist machines out there with different pointer lenghts ?*/
- return 0;
+ 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);
- default:
- break;
- }
-
- /* else */
- return 0;
+ /* set the machine specific modes to the predefined ones */
+ mode_P_code = mode_P;
+ mode_P_data = mode_P;
}
-/* ** initialization ** */
-void
-init_mode (void)
-{
- ir_mode newmode;
- ANNOUNCE();
- /* init flexible array */
-
- obstack_init(&modes);
-
- num_modes = 0;
- /* initialize predefined modes */
-
- /* Internal Modes */
- newmode.arithmetic = irma_none;
- newmode.size = 0;
- newmode.align = 0;
- newmode.sign = 0;
- newmode.link = NULL;
- newmode.tv_priv = NULL;
-
- /* Control Flow Modes*/
- newmode.sort = irms_control_flow;
-
- /* Basic Block */
- newmode.name = id_from_str("BB", 2);
- newmode.code = irm_BB;
-
- mode_BB = register_mode(&newmode);
-
-/* eXecution */
- newmode.name = id_from_str("X", 1);
- newmode.code = irm_X;
-
- mode_X = register_mode(&newmode);
-
- /* Memory Modes */
- newmode.sort = irms_memory;
-
- /* Memory */
- newmode.name = id_from_str("M", 1);
- newmode.code = irm_M;
-
- mode_M = register_mode(&newmode);
-
- /* Auxiliary Modes */
- newmode.sort = irms_auxiliary,
-
- /* Tuple */
- newmode.name = id_from_str("T", 1);
- newmode.code = irm_T;
-
- mode_T = register_mode(&newmode);
-
- /* ANY */
- newmode.name = id_from_str("ANY", 3);
- newmode.code = irm_ANY;
+ir_mode *find_unsigned_mode(const ir_mode *mode)
+{
+ ir_mode n = *mode;
- mode_ANY = register_mode(&newmode);
+ /* allowed for reference mode */
+ if (mode->sort == irms_reference)
+ n.sort = irms_int_number;
- /* BAD */
- newmode.name = id_from_str("BAD", 3);
- newmode.code = irm_BAD;
+ assert(n.sort == irms_int_number);
+ n.sign = 0;
+ return find_mode(&n);
+}
- mode_BAD = register_mode(&newmode);
+ir_mode *find_signed_mode(const ir_mode *mode)
+{
+ ir_mode n = *mode;
- /* Internal Boolean Modes */
- newmode.sort = irms_internal_boolean;
+ assert(mode->sort == irms_int_number);
+ n.sign = 1;
+ return find_mode(&n);
+}
- /* boolean */
- newmode.name = id_from_str("b", 1);
- newmode.code = irm_b;
+ir_mode *find_double_bits_int_mode(const ir_mode *mode)
+{
+ ir_mode n = *mode;
- mode_b = register_mode(&newmode);
+ assert(mode->sort == irms_int_number && mode->arithmetic == irma_twos_complement);
-/* Data Modes */
+ n.size = 2*mode->size;
+ return find_mode(&n);
+}
- /* Float Number Modes */
- newmode.sort = irms_float_number;
- newmode.arithmetic = irma_ieee754;
+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;
+}
- /* float */
- newmode.name = id_from_str("F", 1);
- newmode.code = irm_F;
- newmode.sign = 1;
- newmode.align = 4;
- newmode.size = 32;
+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;
+}
- mode_F = register_mode(&newmode);
+int mode_wrap_around(const ir_mode *mode)
+{
+ /* FIXME: better would be an extra mode property */
+ return mode_is_int(mode);
+}
- /* double */
- newmode.name = id_from_str("D", 1);
- newmode.code = irm_D;
- newmode.sign = 1;
- newmode.align = 4;
- newmode.size = 64;
+int is_reinterpret_cast(const ir_mode *src, const ir_mode *dst)
+{
+ ir_mode_arithmetic ma;
- mode_D = register_mode(&newmode);
+ 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;
- /* extended */
- newmode.name = id_from_str("E", 1);
- newmode.code = irm_E;
- newmode.sign = 1;
- newmode.align = 4;
- newmode.size = 80;
+ return ma == irma_twos_complement;
+}
- mode_E = register_mode(&newmode);
+ir_type *(get_type_for_mode) (const ir_mode *mode)
+{
+ return get_type_for_mode_(mode);
+}
- /* Integer Number Modes */
- newmode.sort = irms_int_number;
- newmode.arithmetic = irma_twos_complement;
+size_t ir_get_n_modes(void)
+{
+ return ARR_LEN(mode_list);
+}
- /* signed byte */
- newmode.name = id_from_str("Bs", 2);
- newmode.code = irm_Bs;
- newmode.sign = 1;
- newmode.align = 1;
- newmode.size = 8;
+ir_mode *ir_get_mode(size_t num)
+{
+ assert(num < ARR_LEN(mode_list));
+ return mode_list[num];
+}
- mode_Bs = register_mode(&newmode);
+void finish_mode(void)
+{
+ obstack_free(&modes, 0);
+ DEL_ARR_F(mode_list);
- /* unsigned byte */
- newmode.name = id_from_str("Bu", 2);
- newmode.code = irm_Bu;
- newmode.arithmetic = irma_twos_complement;
- newmode.sign = 0;
- newmode.align = 1;
- newmode.size = 8;
+ mode_T = NULL;
+ mode_X = NULL;
+ mode_M = NULL;
+ mode_BB = NULL;
+ mode_ANY = NULL;
+ mode_BAD = NULL;
- mode_Bu = register_mode(&newmode);
+ mode_F = NULL;
+ mode_D = NULL;
- /* signed short integer */
- newmode.name = id_from_str("Hs", 2);
- newmode.code = irm_Hs;
- newmode.sign = 1;
- newmode.align = 2;
- newmode.size = 16;
+ 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_Hs = register_mode(&newmode);
+ mode_b = NULL;
- /* unsigned short integer */
- newmode.name = id_from_str("Hu", 2);
- newmode.code = irm_Hu;
- newmode.sign = 0;
- newmode.align = 2;
- newmode.size = 16;
-
- mode_Hu = register_mode(&newmode);
-
- /* signed integer */
- newmode.name = id_from_str("Is", 2);
- newmode.code = irm_Is;
- newmode.sign = 1;
- newmode.align = 4;
- newmode.size = 32;
-
- mode_Is = register_mode(&newmode);
-
- /* unsigned integer */
- newmode.name = id_from_str("Iu", 2);
- newmode.code = irm_Iu;
- newmode.sign = 0;
- newmode.align = 4;
- newmode.size = 32;
-
- mode_Iu = register_mode(&newmode);
-
- /* signed long integer */
- newmode.name = id_from_str("Ls", 2);
- newmode.code = irm_Ls;
- newmode.sign = 1;
- newmode.align = 4;
- newmode.size = 64;
-
- mode_Ls = register_mode(&newmode);
-
- /* unsigned long integer */
- newmode.name = id_from_str("Lu", 2);
- newmode.code = irm_Lu;
- newmode.sign = 0;
- newmode.align = 4;
- newmode.size = 64;
-
- mode_Lu = register_mode(&newmode);
-
- /* Character Modes */
- newmode.sort = irms_character;
- newmode.arithmetic = irma_none;
-
- /* Character */
- newmode.name = id_from_str("C", 1);
- newmode.code = irm_C;
- newmode.sign = 0;
- newmode.align = 1;
- newmode.size = 8;
-
- mode_C = register_mode(&newmode);
-
- /* Unicode character */
- newmode.name = id_from_str("U", 1);
- newmode.code = irm_U;
- newmode.sign = 0;
- newmode.align = 2;
- newmode.size = 16;
-
- mode_U = register_mode(&newmode);
-
- /* Reference Modes */
- newmode.sort = irms_reference;
- newmode.arithmetic = irma_twos_complement;
-
- /* pointer */
- newmode.name = id_from_str("P", 1);
- newmode.code = irm_P;
- newmode.sign = 0;
- newmode.align = 4;
- newmode.size = 32;
-
- mode_P = register_mode(&newmode);
-
- /* set the machine specific modes to the predifined ones */
- mode_P_mach = mode_P;
+ mode_P = NULL;
+ mode_P_code = NULL;
+ mode_P_data = NULL;
}
projects / libfirm / blobdiff