/*
- * 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.
*/
/**
* values.
* @date 2003
* @author Mathias Heil
- * @version $Id$
- * @summary
+ * @brief
*
* Values are stored in a format depending upon chosen arithmetic
* module. Default uses strcalc and fltcalc.
* This implementation assumes:
* - target has IEEE-754 floating-point arithmetic.
*/
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include "config.h"
-#include <assert.h> /* assertions */
-#include <stdlib.h> /* atoi() */
-#ifdef HAVE_STRING_H
-# include <string.h> /* nice things for strings */
-#endif
-#ifdef HAVE_STRINGS_H
-#include <strings.h> /* strings.h also includes bsd only function strcasecmp */
-#endif
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdlib.h>
+#include <strings.h>
+#include "bitfiddle.h"
#include "tv_t.h"
-#include "set.h" /* to store tarvals in */
-#include "entity_t.h" /* needed to store pointers to entities */
+#include "set.h"
+#include "entity_t.h"
#include "irmode_t.h"
-#include "irnode.h" /* defines boolean return values (pnc_number)*/
+#include "irnode.h"
#include "strcalc.h"
#include "fltcalc.h"
-#include "irtools.h"
+#include "util.h"
#include "xmalloc.h"
#include "firm_common.h"
#include "error.h"
target values */
#define N_CONSTANTS 2048
-/* get the integer overflow mode */
-#define GET_OVERFLOW_MODE() int_overflow_mode
-
-/* unused, float to int doesn't work yet */
-enum float_to_int_mode {
- TRUNCATE,
- ROUND
-};
-
-#define GET_FLOAT_TO_INT_MODE() TRUNCATE
-
-#define SWITCH_NOINFINITY 0
-#define SWITCH_NODENORMALS 0
-
/****************************************************************************
* local definitions and macros
****************************************************************************/
# define TARVAL_VERIFY(a) ((void)0)
#endif
-#define INSERT_TARVAL(tv) ((tarval*)set_insert(tarvals, (tv), sizeof(tarval), hash_tv((tv))))
-#define FIND_TARVAL(tv) ((tarval*)set_find(tarvals, (tv), sizeof(tarval), hash_tv((tv))))
+#define INSERT_TARVAL(tv) (set_insert(ir_tarval, tarvals, (tv), sizeof(ir_tarval), hash_tv((tv))))
+#define FIND_TARVAL(tv) (set_find(ir_tarval, tarvals, (tv), sizeof(ir_tarval), hash_tv((tv))))
-#define INSERT_VALUE(val, size) (set_insert(values, (val), size, hash_val((val), size)))
-#define FIND_VALUE(val, size) (set_find(values, (val), size, hash_val((val), size)))
+#define INSERT_VALUE(val, size) (set_insert(char, values, (val), size, hash_val((val), size)))
+#define FIND_VALUE(val, size) (set_find(char, values, (val), size, hash_val((val), size)))
#define fail_verify(a) _fail_verify((a), __FILE__, __LINE__)
-/****************************************************************************
- * private variables
- ****************************************************************************/
-static struct set *tarvals = NULL; /* container for tarval structs */
-static struct set *values = NULL; /* container for values */
-static tarval_int_overflow_mode_t int_overflow_mode = TV_OVERFLOW_WRAP;
+/** A set containing all existing tarvals. */
+static struct set *tarvals = NULL;
+/** A set containing all existing values. */
+static struct set *values = NULL;
-/** if this is set non-zero, the constant folding for floating point is OFF */
-static int no_float = 0;
+/** The integer overflow mode. */
+static tarval_int_overflow_mode_t int_overflow_mode = TV_OVERFLOW_WRAP;
/****************************************************************************
* private functions
****************************************************************************/
#ifndef NDEBUG
-static int hash_val(const void *value, unsigned int length);
-static int hash_tv(tarval *tv);
-static void _fail_verify(tarval *tv, const char* file, int line)
+static unsigned hash_val(const void *value, size_t length);
+static unsigned hash_tv(ir_tarval *tv);
+static void _fail_verify(ir_tarval *tv, const char* file, int line)
{
/* print a memory image of the tarval and throw an assertion */
if (tv)
- printf("%s:%d: Invalid tarval:\n mode: %s\n value: [%p]\n", file, line, get_mode_name(tv->mode), tv->value);
+ panic("%s:%d: Invalid tarval: mode: %F\n value: [%p]", file, line, tv->mode, tv->value);
else
- printf("%s:%d: Invalid tarval (null)", file, line);
- assert(0);
+ panic("%s:%d: Invalid tarval (null)", file, line);
}
+
+inline static
#ifdef __GNUC__
-INLINE static void tarval_verify(tarval *tv) __attribute__ ((unused));
+ __attribute__((unused))
#endif
-
-INLINE static void tarval_verify(tarval *tv)
+void tarval_verify(ir_tarval *tv)
{
assert(tv);
assert(tv->mode);
if (!FIND_TARVAL(tv)) fail_verify(tv);
if (tv->length > 0 && !FIND_VALUE(tv->value, tv->length)) fail_verify(tv);
-
- return;
}
#endif /* NDEBUG */
/** Hash a tarval. */
-static int hash_tv(tarval *tv) {
- return (PTR_TO_INT(tv->value) ^ PTR_TO_INT(tv->mode)) + tv->length;
+static unsigned hash_tv(ir_tarval *tv)
+{
+ return (unsigned)((PTR_TO_INT(tv->value) ^ PTR_TO_INT(tv->mode)) + tv->length);
}
/** Hash a value. Treat it as a byte array. */
-static int hash_val(const void *value, unsigned int length) {
- unsigned int i;
- unsigned int hash = 0;
+static unsigned hash_val(const void *value, size_t length)
+{
+ size_t i;
+ unsigned hash = 0;
/* scramble the byte - array */
for (i = 0; i < length; ++i) {
return hash;
}
-static int cmp_tv(const void *p1, const void *p2, size_t n) {
- const tarval *tv1 = p1;
- const tarval *tv2 = p2;
+static int cmp_tv(const void *p1, const void *p2, size_t n)
+{
+ const ir_tarval *tv1 = (const ir_tarval*) p1;
+ const ir_tarval *tv2 = (const ir_tarval*) p2;
(void) n;
assert(tv1->kind == k_tarval);
assert(tv2->kind == k_tarval);
- if(tv1->mode < tv2->mode)
+ if (tv1->mode < tv2->mode)
return -1;
- if(tv1->mode > tv2->mode)
+ if (tv1->mode > tv2->mode)
return 1;
- if(tv1->length < tv2->length)
+ if (tv1->length < tv2->length)
return -1;
- if(tv1->length > tv2->length)
+ if (tv1->length > tv2->length)
return 1;
- if(tv1->value < tv2->value)
+ if (tv1->value < tv2->value)
return -1;
- if(tv1->value > tv2->value)
+ if (tv1->value > tv2->value)
return 1;
return 0;
}
/** finds tarval with value/mode or creates new tarval */
-static tarval *get_tarval(const void *value, int length, ir_mode *mode) {
- tarval tv;
+static ir_tarval *get_tarval(const void *value, size_t length, ir_mode *mode)
+{
+ ir_tarval tv;
tv.kind = k_tarval;
tv.mode = mode;
if (length > 0) {
/* if there already is such a value, it is returned, else value
* is copied into the set */
- char *temp = alloca(length);
+ char *temp = (char*) alloca(length);
memcpy(temp, value, length);
if (get_mode_arithmetic(mode) == irma_twos_complement) {
sign_extend(temp, mode);
}
/* if there is such a tarval, it is returned, else tv is copied
* into the set */
- return (tarval *)INSERT_TARVAL(&tv);
+ return INSERT_TARVAL(&tv);
}
/**
* handle overflow
*/
-static tarval *get_tarval_overflow(const void *value, int length, ir_mode *mode)
+static ir_tarval *get_tarval_overflow(const void *value, size_t length, ir_mode *mode)
{
char *temp;
switch (get_mode_sort(mode)) {
case irms_reference:
/* addresses always wrap around */
- temp = alloca(sc_get_buffer_length());
+ temp = (char*) alloca(sc_get_buffer_length());
memcpy(temp, value, sc_get_buffer_length());
sc_truncate(get_mode_size_bits(mode), temp);
/* the sc_ module expects that all bits are set ... */
return get_tarval(temp, length, mode);
case irms_int_number:
- if (sc_comp(value, get_mode_max(mode)->value) == 1) {
- switch (GET_OVERFLOW_MODE()) {
+ if (sc_comp(value, get_mode_max(mode)->value) == ir_relation_greater) {
+ switch (tarval_get_integer_overflow_mode()) {
case TV_OVERFLOW_SATURATE:
return get_mode_max(mode);
case TV_OVERFLOW_WRAP:
- temp = alloca(sc_get_buffer_length());
+ temp = (char*) alloca(sc_get_buffer_length());
memcpy(temp, value, sc_get_buffer_length());
sc_truncate(get_mode_size_bits(mode), temp);
/* the sc_ module expects that all bits are set ... */
return get_tarval(value, length, mode);
}
}
- if (sc_comp(value, get_mode_min(mode)->value) == -1) {
- switch (GET_OVERFLOW_MODE()) {
+ if (sc_comp(value, get_mode_min(mode)->value) == ir_relation_less) {
+ switch (tarval_get_integer_overflow_mode()) {
case TV_OVERFLOW_SATURATE:
return get_mode_min(mode);
case TV_OVERFLOW_WRAP: {
- char *temp = alloca(sc_get_buffer_length());
+ temp = (char*) alloca(sc_get_buffer_length());
memcpy(temp, value, sc_get_buffer_length());
sc_truncate(get_mode_size_bits(mode), temp);
return get_tarval(temp, length, mode);
break;
case irms_float_number:
- if (SWITCH_NOINFINITY && fc_is_inf(value)) {
- /* clip infinity to maximum value */
- return fc_is_negative(value) ? get_mode_min(mode) : get_mode_max(mode);
- }
-
- if (SWITCH_NODENORMALS && fc_is_subnormal(value)) {
- /* clip denormals to zero */
- return get_mode_null(mode);
- }
break;
default:
return get_tarval(value, length, mode);
}
-/*
- * public variables declared in tv.h
- */
-static tarval reserved_tv[6];
+static ir_tarval reserved_tv[2];
+static ir_tarval nonconst_tvs[4];
-tarval *tarval_b_false = &reserved_tv[0];
-tarval *tarval_b_true = &reserved_tv[1];
-tarval *tarval_bad = &reserved_tv[2];
-tarval *tarval_undefined = &reserved_tv[3];
-tarval *tarval_reachable = &reserved_tv[4];
-tarval *tarval_unreachable = &reserved_tv[5];
+ir_tarval *tarval_b_false = &reserved_tv[0];
+ir_tarval *tarval_b_true = &reserved_tv[1];
+ir_tarval *tarval_bad = &nonconst_tvs[0];
+ir_tarval *tarval_undefined = &nonconst_tvs[1];
+ir_tarval *tarval_reachable = &nonconst_tvs[2];
+ir_tarval *tarval_unreachable = &nonconst_tvs[3];
-/*
- * public functions declared in tv.h
+/**
+ * get the float descriptor for given mode.
*/
+static const float_descriptor_t *get_descriptor(const ir_mode *mode)
+{
+ return &mode->float_desc;
+}
-/*
- * Constructors =============================================================
- */
-tarval *new_tarval_from_str(const char *str, size_t len, ir_mode *mode)
+ir_tarval *new_integer_tarval_from_str(const char *str, size_t len, char sign,
+ unsigned char base, ir_mode *mode)
{
+ void *buffer;
+ int ok;
+
+ buffer = alloca(sc_get_buffer_length());
+
+ ok = sc_val_from_str(sign, base, str, len, buffer);
+ if (!ok)
+ return tarval_bad;
+
+ return get_tarval_overflow(buffer, sc_get_buffer_length(), mode);
+}
+
+static ir_tarval *new_tarval_from_str_int(const char *str, size_t len,
+ ir_mode *mode)
+{
+ void *buffer;
+ unsigned base = 10;
+ char sign = 1;
+ int ok;
+
+ /* skip leading spaces */
+ while (len > 0 && str[0] == ' ') {
+ ++str;
+ --len;
+ }
+ if (len == 0)
+ return tarval_bad;
+
+ /* 1 sign character allowed */
+ if (str[0] == '-') {
+ sign = -1;
+ ++str;
+ --len;
+ } else if (str[0] == '+') {
+ ++str;
+ --len;
+ }
+
+ /* a number starting with '0x' is hexadeciaml,
+ * a number starting with '0' (and at least 1 more char) is octal */
+ if (len >= 2 && str[0] == '0') {
+ if (str[1] == 'x' || str[1] == 'X') {
+ str += 2;
+ len -= 2;
+ base = 16;
+ } else if (str[1] == 'b' || str[1] == 'B') {
+ str += 2;
+ len -= 2;
+ base = 2;
+ } else {
+ ++str;
+ --len;
+ base = 8;
+ }
+ }
+ if (len == 0)
+ return tarval_bad;
+
+ buffer = alloca(sc_get_buffer_length());
+
+ ok = sc_val_from_str(sign, base, str, len, buffer);
+ if (!ok)
+ return tarval_bad;
+
+ return get_tarval_overflow(buffer, sc_get_buffer_length(), mode);
+}
+
+ir_tarval *new_tarval_from_str(const char *str, size_t len, ir_mode *mode)
+{
+ const float_descriptor_t *desc;
+
assert(str);
assert(len);
assert(mode);
switch (get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- assert(0);
- break;
-
case irms_internal_boolean:
/* match [tT][rR][uU][eE]|[fF][aA][lL][sS][eE] */
- if (strcasecmp(str, "true"))
- return tarval_b_true;
- else if (strcasecmp(str, "false"))
+ if (!strcasecmp(str, "true"))
return tarval_b_true;
+ else if (!strcasecmp(str, "false"))
+ return tarval_b_false;
else
/* XXX This is C semantics */
return atoi(str) ? tarval_b_true : tarval_b_false;
case irms_float_number:
- switch (get_mode_size_bits(mode)) {
- case 32:
- fc_val_from_str(str, len, 8, 23, NULL);
- break;
- case 64:
- fc_val_from_str(str, len, 11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_val_from_str(str, len, 15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in new_tarval_from_str()");
- }
+ desc = get_descriptor(mode);
+ fc_val_from_str(str, len, desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
case irms_reference:
- /* same as integer modes */
+ if (!strcasecmp(str, "null"))
+ return get_tarval_null(mode);
+ /* FALLTHROUGH */
case irms_int_number:
- sc_val_from_str(str, len, NULL, mode);
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
+ return new_tarval_from_str_int(str, len, mode);
+ default:
+ panic("Unsupported tarval creation with mode %F", mode);
}
-
- assert(0); /* can't be reached, can it? */
- return NULL;
}
-/*
- * helper function, create a tarval from long
- */
-tarval *new_tarval_from_long(long l, ir_mode *mode) {
+ir_tarval *new_tarval_from_long(long l, ir_mode *mode)
+{
assert(mode);
switch (get_mode_sort(mode)) {
return new_tarval_from_double((long double)l, mode);
default:
- assert(0 && "unsupported mode sort");
+ panic("unsupported mode sort");
}
- return NULL;
}
-/* returns non-zero if can be converted to long */
-int tarval_is_long(tarval *tv) {
+int tarval_is_long(ir_tarval *tv)
+{
if (!mode_is_int(tv->mode) && !mode_is_reference(tv->mode))
return 0;
if (get_mode_size_bits(tv->mode) > (int) (sizeof(long) << 3)) {
/* the value might be too big to fit in a long */
sc_max_from_bits(sizeof(long) << 3, 0, NULL);
- if (sc_comp(sc_get_buffer(), tv->value) == -1) {
+ if (sc_comp(sc_get_buffer(), tv->value) == ir_relation_less) {
/* really doesn't fit */
return 0;
}
return 1;
}
-/* this might overflow the machine's long, so use only with small values */
-long get_tarval_long(tarval* tv) {
+long get_tarval_long(ir_tarval* tv)
+{
assert(tarval_is_long(tv) && "tarval too big to fit in long");
return sc_val_to_long(tv->value);
}
-tarval *new_tarval_from_double(long double d, ir_mode *mode) {
- assert(mode && (get_mode_sort(mode) == irms_float_number));
+ir_tarval *new_tarval_from_long_double(long double d, ir_mode *mode)
+{
+ const float_descriptor_t *desc;
- switch (get_mode_size_bits(mode)) {
- case 32:
- fc_val_from_ieee754(d, 8, 23, NULL);
- break;
- case 64:
- fc_val_from_ieee754(d, 11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_val_from_ieee754(d, 15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in new_tarval_from_double()");
- }
+ assert(mode && (get_mode_sort(mode) == irms_float_number));
+ desc = get_descriptor(mode);
+ fc_val_from_ieee754(d, desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
}
-/* returns non-zero if can be converted to double */
-int tarval_is_double(tarval *tv) {
+ir_tarval *new_tarval_from_double(double d, ir_mode *mode)
+{
+ return new_tarval_from_long_double(d, mode);
+}
+
+int tarval_is_double(ir_tarval *tv)
+{
assert(tv);
return (get_mode_sort(tv->mode) == irms_float_number);
}
-long double get_tarval_double(tarval *tv) {
+long double get_tarval_long_double(ir_tarval *tv)
+{
assert(tarval_is_double(tv));
- return fc_val_to_ieee754(tv->value);
+ return fc_val_to_ieee754((const fp_value*) tv->value);
}
+double get_tarval_double(ir_tarval *tv)
+{
+ return get_tarval_long_double(tv);
+}
-/*
- * Access routines for tarval fields ========================================
- */
-
-/* get the mode of the tarval */
-ir_mode *(get_tarval_mode)(const tarval *tv) {
+ir_mode *(get_tarval_mode)(const ir_tarval *tv)
+{
return _get_tarval_mode(tv);
}
* therefore the irmode functions should be preferred to the functions below.
*/
-tarval *(get_tarval_bad)(void) {
+ir_tarval *(get_tarval_bad)(void)
+{
return _get_tarval_bad();
}
-tarval *(get_tarval_undefined)(void) {
+ir_tarval *(get_tarval_undefined)(void)
+{
return _get_tarval_undefined();
}
-tarval *(get_tarval_b_false)(void) {
+ir_tarval *(get_tarval_b_false)(void)
+{
return _get_tarval_b_false();
}
-tarval *(get_tarval_b_true)(void) {
+ir_tarval *(get_tarval_b_true)(void)
+{
return _get_tarval_b_true();
}
-tarval *(get_tarval_reachable)(void) {
+ir_tarval *(get_tarval_reachable)(void)
+{
return _get_tarval_reachable();
}
-tarval *(get_tarval_unreachable)(void) {
+ir_tarval *(get_tarval_unreachable)(void)
+{
return _get_tarval_unreachable();
}
-tarval *get_tarval_max(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
- switch(get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- assert(0);
- break;
+ir_tarval *get_tarval_max(ir_mode *mode)
+{
+ const float_descriptor_t *desc;
+ switch (get_mode_sort(mode)) {
case irms_internal_boolean:
return tarval_b_true;
case irms_float_number:
- switch(get_mode_size_bits(mode)) {
- case 32:
- fc_get_max(8, 23, NULL);
- break;
- case 64:
- fc_get_max(11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_get_max(15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in get_tarval_max()");
- }
+ desc = get_descriptor(mode);
+ fc_get_max(desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
case irms_reference:
case irms_int_number:
sc_max_from_bits(get_mode_size_bits(mode), mode_is_signed(mode), NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
+ default:
+ panic("mode %F does not support maximum value", mode);
}
- return tarval_bad;
}
-tarval *get_tarval_min(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
- switch(get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- assert(0);
- break;
+ir_tarval *get_tarval_min(ir_mode *mode)
+{
+ const float_descriptor_t *desc;
+ switch (get_mode_sort(mode)) {
case irms_internal_boolean:
return tarval_b_false;
case irms_float_number:
- switch(get_mode_size_bits(mode)) {
- case 32:
- fc_get_min(8, 23, NULL);
- break;
- case 64:
- fc_get_min(11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_get_min(15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in get_tarval_min()");
- }
+ desc = get_descriptor(mode);
+ fc_get_min(desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
case irms_reference:
case irms_int_number:
sc_min_from_bits(get_mode_size_bits(mode), mode_is_signed(mode), NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
+ default:
+ panic("mode %F does not support minimum value", mode);
}
- return tarval_bad;
}
/** The bit pattern for the pointer NULL */
static long _null_value = 0;
-tarval *get_tarval_null(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
- switch(get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- assert(0);
- break;
-
+ir_tarval *get_tarval_null(ir_mode *mode)
+{
+ switch (get_mode_sort(mode)) {
case irms_float_number:
return new_tarval_from_double(0.0, mode);
case irms_reference:
return new_tarval_from_long(_null_value, mode);
+ default:
+ panic("mode %F does not support null value", mode);
}
- return tarval_bad;
}
-tarval *get_tarval_one(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- assert(0);
- return tarval_bad;
- }
-
- switch(get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- assert(0);
- break;
-
+ir_tarval *get_tarval_one(ir_mode *mode)
+{
+ switch (get_mode_sort(mode)) {
case irms_internal_boolean:
return tarval_b_true;
case irms_reference:
case irms_int_number:
return new_tarval_from_long(1l, mode);
+ default:
+ panic("mode %F does not support one value", mode);
}
- return tarval_bad;
}
-tarval *get_tarval_all_one(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- assert(0);
- return tarval_bad;
- }
-
- switch(get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- assert(0);
- return tarval_bad;
-
+ir_tarval *get_tarval_all_one(ir_mode *mode)
+{
+ switch (get_mode_sort(mode)) {
case irms_int_number:
case irms_internal_boolean:
case irms_reference:
return tarval_not(get_mode_null(mode));
-
case irms_float_number:
return new_tarval_from_double(1.0, mode);
+
+ default:
+ panic("mode %F does not support all-one value", mode);
}
- return tarval_bad;
}
-int tarval_is_constant(tarval *tv) {
- int num_res = sizeof(reserved_tv) / sizeof(reserved_tv[0]);
-
- /* reserved tarvals are NOT constants. Note that although
- tarval_b_true and tarval_b_false are reserved, they are constants of course. */
- return (tv < &reserved_tv[2] || tv > &reserved_tv[num_res - 1]);
+int tarval_is_constant(ir_tarval *tv)
+{
+ size_t const num_res = ARRAY_SIZE(nonconst_tvs);
+ return tv < &nonconst_tvs[0] || &nonconst_tvs[num_res] <= tv;
}
-tarval *get_tarval_minus_one(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
- switch(get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- case irms_internal_boolean:
- assert(0);
- break;
-
+ir_tarval *get_tarval_minus_one(ir_mode *mode)
+{
+ switch (get_mode_sort(mode)) {
case irms_reference:
return tarval_bad;
case irms_int_number:
return new_tarval_from_long(-1l, mode);
+
+ default:
+ panic("mode %F does not support minus one value", mode);
}
- return tarval_bad;
}
-tarval *get_tarval_nan(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
+ir_tarval *get_tarval_nan(ir_mode *mode)
+{
+ const float_descriptor_t *desc;
if (get_mode_sort(mode) == irms_float_number) {
- switch(get_mode_size_bits(mode)) {
- case 32:
- fc_get_qnan(8, 23, NULL);
- break;
- case 64:
- fc_get_qnan(11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_get_qnan(15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in get_tarval_nan()");
- }
+ desc = get_descriptor(mode);
+ fc_get_qnan(desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
- } else {
- assert(0 && "tarval is not floating point");
- return tarval_bad;
- }
+ } else
+ panic("mode %F does not support NaN value", mode);
}
-tarval *get_tarval_plus_inf(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
+ir_tarval *get_tarval_plus_inf(ir_mode *mode)
+{
if (get_mode_sort(mode) == irms_float_number) {
- switch(get_mode_size_bits(mode)) {
- case 32:
- fc_get_plusinf(8, 23, NULL);
- break;
- case 64:
- fc_get_plusinf(11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_get_plusinf(15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in get_tarval_plus_inf()");
- }
+ const float_descriptor_t *desc = get_descriptor(mode);
+ fc_get_plusinf(desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
- } else {
- assert(0 && "tarval is not floating point");
- return tarval_bad;
- }
+ } else
+ panic("mode %F does not support +inf value", mode);
}
-tarval *get_tarval_minus_inf(ir_mode *mode) {
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
+ir_tarval *get_tarval_minus_inf(ir_mode *mode)
+{
if (get_mode_sort(mode) == irms_float_number) {
- switch(get_mode_size_bits(mode)) {
- case 32:
- fc_get_minusinf(8, 23, NULL);
- break;
- case 64:
- fc_get_minusinf(11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_get_minusinf(15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in get_tarval_minus_inf()");
- }
+ const float_descriptor_t *desc = get_descriptor(mode);
+ fc_get_minusinf(desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
- } else {
- assert(0 && "tarval is not floating point");
- return tarval_bad;
- }
+ } else
+ panic("mode %F does not support -inf value", mode);
}
/*
- * Arithmethic operations on tarvals ========================================
- */
-
-/*
- * test if negative number, 1 means 'yes'
+ * Arithmetic operations on tarvals ========================================
*/
-int tarval_is_negative(tarval *a) {
- assert(a);
-
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- assert(0 && "tarval_is_negative is not allowed for vector modes");
- return 0;
- }
+int tarval_is_negative(ir_tarval *a)
+{
switch (get_mode_sort(a->mode)) {
case irms_int_number:
if (!mode_is_signed(a->mode)) return 0;
else
- return sc_comp(a->value, get_mode_null(a->mode)->value) == -1 ? 1 : 0;
+ return sc_comp(a->value, get_mode_null(a->mode)->value) == ir_relation_less ? 1 : 0;
case irms_float_number:
- return fc_is_negative(a->value);
+ return fc_is_negative((const fp_value*) a->value);
default:
- assert(0 && "not implemented");
- return 0;
+ panic("mode %F does not support negation value", a->mode);
}
}
-/*
- * test if null, 1 means 'yes'
- */
-int tarval_is_null(tarval *a) {
+int tarval_is_null(ir_tarval *a)
+{
return
a != tarval_bad &&
a == get_mode_null(get_tarval_mode(a));
}
-/*
- * test if one, 1 means 'yes'
- */
-int tarval_is_one(tarval *a) {
+int tarval_is_one(ir_tarval *a)
+{
return
a != tarval_bad &&
a == get_mode_one(get_tarval_mode(a));
}
-int tarval_is_all_one(tarval *tv) {
+int tarval_is_all_one(ir_tarval *tv)
+{
return
tv != tarval_bad &&
tv == get_mode_all_one(get_tarval_mode(tv));
}
-/*
- * test if one, 1 means 'yes'
- */
-int tarval_is_minus_one(tarval *a) {
+int tarval_is_minus_one(ir_tarval *a)
+{
return
a != tarval_bad &&
a == get_mode_minus_one(get_tarval_mode(a));
}
-/*
- * comparison
- */
-pn_Cmp tarval_cmp(tarval *a, tarval *b) {
- assert(a);
- assert(b);
-
+ir_relation tarval_cmp(ir_tarval *a, ir_tarval *b)
+{
if (a == tarval_bad || b == tarval_bad) {
- assert(0 && "Comparison with tarval_bad");
- return pn_Cmp_False;
+ panic("Comparison with tarval_bad");
}
if (a == tarval_undefined || b == tarval_undefined)
- return pn_Cmp_False;
+ return ir_relation_false;
if (a->mode != b->mode)
- return pn_Cmp_False;
-
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- assert(0 && "cmp not implemented for vector modes");
- }
+ return ir_relation_false;
/* Here the two tarvals are unequal and of the same mode */
switch (get_mode_sort(a->mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- if (a == b)
- return pn_Cmp_Eq;
- return pn_Cmp_False;
-
case irms_float_number:
- /* it should be safe to enable this even if other arithmetic is disabled */
- /*if (no_float)
- return pn_Cmp_False;*/
/*
* BEWARE: we cannot compare a == b here, because
* a NaN is always Unordered to any other value, even to itself!
*/
- switch (fc_comp(a->value, b->value)) {
- case -1: return pn_Cmp_Lt;
- case 0: return pn_Cmp_Eq;
- case 1: return pn_Cmp_Gt;
- case 2: return pn_Cmp_Uo;
- default: return pn_Cmp_False;
- }
+ return fc_comp((fp_value const*)a->value, (fp_value const*)b->value);
+
case irms_reference:
case irms_int_number:
if (a == b)
- return pn_Cmp_Eq;
- return sc_comp(a->value, b->value) == 1 ? pn_Cmp_Gt : pn_Cmp_Lt;
+ return ir_relation_equal;
+ return sc_comp(a->value, b->value);
case irms_internal_boolean:
if (a == b)
- return pn_Cmp_Eq;
- return a == tarval_b_true ? pn_Cmp_Gt : pn_Cmp_Lt;
+ return ir_relation_equal;
+ return a == tarval_b_true ? ir_relation_greater : ir_relation_less;
+
+ default:
+ panic("can't compare values of mode %F", a->mode);
}
- return pn_Cmp_False;
}
-/*
- * convert to other mode
- */
-tarval *tarval_convert_to(tarval *src, ir_mode *dst_mode) {
- char *buffer;
- fp_value *res;
+ir_tarval *tarval_convert_to(ir_tarval *src, ir_mode *dst_mode)
+{
+ char *buffer;
+ fp_value *res = NULL;
+ const float_descriptor_t *desc;
+ int len;
assert(src);
assert(dst_mode);
- if (src->mode == dst_mode) return src;
-
- if (get_mode_n_vector_elems(src->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
- switch (get_mode_sort(src->mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- break;
+ if (src->mode == dst_mode)
+ return src;
- /* cast float to something */
+ switch (get_mode_sort(src->mode)) {
+ /* cast float to something */
case irms_float_number:
switch (get_mode_sort(dst_mode)) {
case irms_float_number:
- switch (get_mode_size_bits(dst_mode)) {
- case 32:
- fc_cast(src->value, 8, 23, NULL);
- break;
- case 64:
- fc_cast(src->value, 11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_cast(src->value, 15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in tarval_convert_to()");
- }
+ desc = get_descriptor(dst_mode);
+ fc_cast((const fp_value*) src->value, desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), dst_mode);
case irms_int_number:
- switch (GET_FLOAT_TO_INT_MODE()) {
- case TRUNCATE:
- res = fc_int(src->value, NULL);
- break;
- case ROUND:
- res = fc_rnd(src->value, NULL);
- break;
- default:
- panic("Unsupported float to int conversion mode in tarval_convert_to()");
- break;
- }
- buffer = alloca(sc_get_buffer_length());
+ res = fc_int((const fp_value*) src->value, NULL);
+ buffer = (char*) alloca(sc_get_buffer_length());
if (! fc_flt2int(res, buffer, dst_mode))
return tarval_bad;
return get_tarval(buffer, sc_get_buffer_length(), dst_mode);
default:
- /* the rest can't be converted */
- return tarval_bad;
+ break;
}
- break;
+ /* the rest can't be converted */
+ return tarval_bad;
/* cast int/characters to something */
case irms_int_number:
case irms_reference:
case irms_int_number:
- buffer = alloca(sc_get_buffer_length());
+ buffer = (char*) alloca(sc_get_buffer_length());
memcpy(buffer, src->value, sc_get_buffer_length());
- sign_extend(buffer, dst_mode);
return get_tarval_overflow(buffer, src->length, dst_mode);
case irms_internal_boolean:
/* XXX floating point unit does not understand internal integer
* representation, convert to string first, then create float from
* string */
- buffer = alloca(100);
+ buffer = (char*) alloca(100);
/* decimal string representation because hexadecimal output is
* interpreted unsigned by fc_val_from_str, so this is a HACK */
- snprintf(buffer, 100, "%s",
+ len = snprintf(buffer, 100, "%s",
sc_print(src->value, get_mode_size_bits(src->mode), SC_DEC, mode_is_signed(src->mode)));
buffer[100 - 1] = '\0';
- switch (get_mode_size_bits(dst_mode)) {
- case 32:
- fc_val_from_str(buffer, 0, 8, 23, NULL);
- break;
- case 64:
- fc_val_from_str(buffer, 0, 11, 52, NULL);
- break;
- case 80:
- case 96:
- fc_val_from_str(buffer, 0, 15, 64, NULL);
- break;
- default:
- panic("Unsupported mode in tarval_convert_to()");
- }
+ desc = get_descriptor(dst_mode);
+ fc_val_from_str(buffer, len, desc, NULL);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), dst_mode);
default:
case irms_reference:
if (get_mode_sort(dst_mode) == irms_int_number) {
- buffer = alloca(sc_get_buffer_length());
+ buffer = (char*) alloca(sc_get_buffer_length());
memcpy(buffer, src->value, sc_get_buffer_length());
sign_extend(buffer, src->mode);
return get_tarval_overflow(buffer, src->length, dst_mode);
}
break;
+ default:
+ return tarval_bad;
}
return tarval_bad;
}
-/*
- * bitwise negation
- */
-tarval *tarval_not(tarval *a) {
+ir_tarval *tarval_not(ir_tarval *a)
+{
char *buffer;
- assert(a);
-
- /* works for vector mode without changes */
-
switch (get_mode_sort(a->mode)) {
case irms_reference:
case irms_int_number:
- buffer = alloca(sc_get_buffer_length());
+ buffer = (char*) alloca(sc_get_buffer_length());
sc_not(a->value, buffer);
return get_tarval(buffer, a->length, a->mode);
return tarval_bad;
default:
- assert(0 && "bitwise negation is only allowed for integer and boolean");
- return tarval_bad;
+ panic("bitwise negation is only allowed for integer and boolean");
}
}
-/*
- * arithmetic negation
- */
-tarval *tarval_neg(tarval *a) {
+ir_tarval *tarval_neg(ir_tarval *a)
+{
char *buffer;
- assert(a);
assert(mode_is_num(a->mode)); /* negation only for numerical values */
/* note: negation is allowed even for unsigned modes. */
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
switch (get_mode_sort(a->mode)) {
case irms_int_number:
- buffer = alloca(sc_get_buffer_length());
+ buffer = (char*) alloca(sc_get_buffer_length());
sc_neg(a->value, buffer);
return get_tarval_overflow(buffer, a->length, a->mode);
case irms_float_number:
- /* it should be safe to enable this even if other arithmetic is disabled */
- /*if (no_float)
- return tarval_bad;*/
-
- fc_neg(a->value, NULL);
+ fc_neg((const fp_value*) a->value, NULL);
return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
}
}
-/*
- * addition
- */
-tarval *tarval_add(tarval *a, tarval *b) {
+ir_tarval *tarval_add(ir_tarval *a, ir_tarval *b)
+{
char *buffer;
- assert(a);
- assert(b);
- assert(a->mode == b->mode);
-
- if (get_mode_n_vector_elems(a->mode) > 1 || get_mode_n_vector_elems(b->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
+ if (mode_is_reference(a->mode) && a->mode != b->mode) {
+ b = tarval_convert_to(b, a->mode);
+ } else if (mode_is_reference(b->mode) && b->mode != a->mode) {
+ a = tarval_convert_to(a, b->mode);
}
+ assert(a->mode == b->mode);
+
switch (get_mode_sort(a->mode)) {
+ case irms_reference:
case irms_int_number:
/* modes of a,b are equal, so result has mode of a as this might be the character */
- buffer = alloca(sc_get_buffer_length());
+ buffer = (char*) alloca(sc_get_buffer_length());
sc_add(a->value, b->value, buffer);
return get_tarval_overflow(buffer, a->length, a->mode);
case irms_float_number:
- if (no_float)
- return tarval_bad;
-
- fc_add(a->value, b->value, NULL);
+ fc_add((const fp_value*) a->value, (const fp_value*) b->value, NULL);
return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
}
}
-/*
- * subtraction
- */
-tarval *tarval_sub(tarval *a, tarval *b) {
- char *buffer;
+ir_tarval *tarval_sub(ir_tarval *a, ir_tarval *b, ir_mode *dst_mode)
+{
+ char *buffer;
- assert(a);
- assert(b);
+ if (dst_mode != NULL) {
+ if (a->mode != dst_mode)
+ a = tarval_convert_to(a, dst_mode);
+ if (b->mode != dst_mode)
+ b = tarval_convert_to(b, dst_mode);
+ }
assert(a->mode == b->mode);
- if (get_mode_n_vector_elems(a->mode) > 1 || get_mode_n_vector_elems(b->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
switch (get_mode_sort(a->mode)) {
+ case irms_reference:
case irms_int_number:
/* modes of a,b are equal, so result has mode of a as this might be the character */
- buffer = alloca(sc_get_buffer_length());
+ buffer = (char*) alloca(sc_get_buffer_length());
sc_sub(a->value, b->value, buffer);
return get_tarval_overflow(buffer, a->length, a->mode);
case irms_float_number:
- if (no_float)
- return tarval_bad;
-
- fc_sub(a->value, b->value, NULL);
+ fc_sub((const fp_value*) a->value, (const fp_value*) b->value, NULL);
return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
}
}
-/*
- * multiplication
- */
-tarval *tarval_mul(tarval *a, tarval *b) {
+ir_tarval *tarval_mul(ir_tarval *a, ir_tarval *b)
+{
char *buffer;
- assert(a);
- assert(b);
assert(a->mode == b->mode);
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
switch (get_mode_sort(a->mode)) {
case irms_int_number:
/* modes of a,b are equal */
- buffer = alloca(sc_get_buffer_length());
+ buffer = (char*) alloca(sc_get_buffer_length());
sc_mul(a->value, b->value, buffer);
return get_tarval_overflow(buffer, a->length, a->mode);
case irms_float_number:
- if (no_float)
- return tarval_bad;
-
- fc_mul(a->value, b->value, NULL);
+ fc_mul((const fp_value*) a->value, (const fp_value*) b->value, NULL);
return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
}
}
-/*
- * floating point division
- */
-tarval *tarval_quo(tarval *a, tarval *b) {
- assert(a);
- assert(b);
- assert((a->mode == b->mode) && mode_is_float(a->mode));
-
- if (no_float)
- return tarval_bad;
-
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
- fc_div(a->value, b->value, NULL);
- return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
-}
+ir_tarval *tarval_div(ir_tarval *a, ir_tarval *b)
+{
+ ir_mode *mode = a->mode;
+ assert(mode == b->mode);
-/*
- * integer division
- * overflow is impossible, but look out for division by zero
- */
-tarval *tarval_div(tarval *a, tarval *b) {
- assert(a);
- assert(b);
- assert((a->mode == b->mode) && mode_is_int(a->mode));
+ if (mode_is_int(mode)) {
+ /* x/0 error */
+ if (b == get_mode_null(mode))
+ return tarval_bad;
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
+ /* modes of a,b are equal */
+ sc_div(a->value, b->value, NULL);
+ return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ } else {
+ assert(mode_is_float(mode));
+ fc_div((const fp_value*) a->value, (const fp_value*) b->value, NULL);
+ return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), mode);
}
-
- /* x/0 error */
- if (b == get_mode_null(b->mode)) return tarval_bad;
- /* modes of a,b are equal */
- sc_div(a->value, b->value, NULL);
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
-/*
- * remainder
- * overflow is impossible, but look out for division by zero
- */
-tarval *tarval_mod(tarval *a, tarval *b) {
- assert(a);
- assert(b);
+ir_tarval *tarval_mod(ir_tarval *a, ir_tarval *b)
+{
assert((a->mode == b->mode) && mode_is_int(a->mode));
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
/* x/0 error */
if (b == get_mode_null(b->mode)) return tarval_bad;
/* modes of a,b are equal */
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
-/*
- * integer division AND remainder
- * overflow is impossible, but look out for division by zero
- */
-tarval *tarval_divmod(tarval *a, tarval *b, tarval **mod) {
+ir_tarval *tarval_divmod(ir_tarval *a, ir_tarval *b, ir_tarval **mod)
+{
int len = sc_get_buffer_length();
- char *div_res = alloca(len);
- char *mod_res = alloca(len);
+ char *div_res = (char*) alloca(len);
+ char *mod_res = (char*) alloca(len);
- assert(a);
- assert(b);
assert((a->mode == b->mode) && mode_is_int(a->mode));
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
-
/* x/0 error */
if (b == get_mode_null(b->mode)) return tarval_bad;
/* modes of a,b are equal */
return get_tarval(div_res, len, a->mode);
}
-/*
- * absolute value
- */
-tarval *tarval_abs(tarval *a) {
+ir_tarval *tarval_abs(ir_tarval *a)
+{
char *buffer;
- assert(a);
assert(mode_is_num(a->mode));
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
switch (get_mode_sort(a->mode)) {
case irms_int_number:
- if (sc_comp(a->value, get_mode_null(a->mode)->value) == -1) {
- buffer = alloca(sc_get_buffer_length());
+ if (sc_comp(a->value, get_mode_null(a->mode)->value) == ir_relation_less) {
+ buffer = (char*) alloca(sc_get_buffer_length());
sc_neg(a->value, buffer);
return get_tarval_overflow(buffer, a->length, a->mode);
}
return a;
case irms_float_number:
- /* it should be safe to enable this even if other arithmetic is disabled */
- /*if (no_float)
- return tarval_bad;*/
-
- if (fc_comp(a->value, get_mode_null(a->mode)->value) == -1) {
- fc_neg(a->value, NULL);
+ if (fc_is_negative((fp_value const*)a)) {
+ fc_neg((const fp_value*) a->value, NULL);
return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
}
return a;
default:
- return tarval_bad;
+ break;
}
return tarval_bad;
}
-/*
- * bitwise and
- */
-tarval *tarval_and(tarval *a, tarval *b) {
- assert(a);
- assert(b);
+ir_tarval *tarval_and(ir_tarval *a, ir_tarval *b)
+{
assert(a->mode == b->mode);
- /* works even for vector modes */
-
- switch(get_mode_sort(a->mode)) {
+ switch (get_mode_sort(a->mode)) {
case irms_internal_boolean:
return (a == tarval_b_false) ? a : b;
+ case irms_reference:
case irms_int_number:
sc_and(a->value, b->value, NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
default:
- assert(0 && "operation not defined on mode");
- return tarval_bad;
+ panic("operation not defined on mode");
}
}
-/*
- * bitwise or
- */
-tarval *tarval_or(tarval *a, tarval *b) {
- assert(a);
- assert(b);
+ir_tarval *tarval_andnot(ir_tarval *a, ir_tarval *b)
+{
assert(a->mode == b->mode);
- /* works even for vector modes */
+ switch (get_mode_sort(a->mode)) {
+ case irms_internal_boolean:
+ return a == tarval_b_true && b == tarval_b_false ? tarval_b_true : tarval_b_false;
+
+ case irms_reference:
+ case irms_int_number:
+ sc_andnot(a->value, b->value, NULL);
+ return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+
+ default:
+ panic("operation not defined on mode");
+ }
+}
+
+ir_tarval *tarval_or(ir_tarval *a, ir_tarval *b)
+{
+ assert(a->mode == b->mode);
switch (get_mode_sort(a->mode)) {
case irms_internal_boolean:
return (a == tarval_b_true) ? a : b;
+ case irms_reference:
case irms_int_number:
sc_or(a->value, b->value, NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
default:
- assert(0 && "operation not defined on mode");
- return tarval_bad;
+ panic("operation not defined on mode");
}
}
-/*
- * bitwise exclusive or (xor)
- */
-tarval *tarval_eor(tarval *a, tarval *b) {
- assert(a);
- assert(b);
+ir_tarval *tarval_eor(ir_tarval *a, ir_tarval *b)
+{
assert((a->mode == b->mode));
- /* works even for vector modes */
-
switch (get_mode_sort(a->mode)) {
case irms_internal_boolean:
return (a == b)? tarval_b_false : tarval_b_true;
+ case irms_reference:
case irms_int_number:
sc_xor(a->value, b->value, NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
default:
- assert(0 && "operation not defined on mode");
- return tarval_bad;;
+ panic("operation not defined on mode");
}
}
-/*
- * bitwise left shift
- */
-tarval *tarval_shl(tarval *a, tarval *b) {
+ir_tarval *tarval_shl(ir_tarval *a, ir_tarval *b)
+{
char *temp_val = NULL;
- assert(a);
- assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- if (get_mode_n_vector_elems(a->mode) > 1 || get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
if (get_mode_modulo_shift(a->mode) != 0) {
- temp_val = alloca(sc_get_buffer_length());
+ temp_val = (char*) alloca(sc_get_buffer_length());
sc_val_from_ulong(get_mode_modulo_shift(a->mode), temp_val);
sc_mod(b->value, temp_val, temp_val);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
-/*
- * bitwise unsigned right shift
- */
-tarval *tarval_shr(tarval *a, tarval *b) {
+ir_tarval *tarval_shl_unsigned(ir_tarval *a, unsigned b)
+{
+ ir_mode *mode = a->mode;
+ unsigned modulo = get_mode_modulo_shift(mode);
+ if (modulo != 0)
+ b %= modulo;
+ assert((unsigned)(long)b==b);
+ sc_shlI(a->value, (long)b, get_mode_size_bits(mode), mode_is_signed(mode), NULL);
+ return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
+}
+
+ir_tarval *tarval_shr(ir_tarval *a, ir_tarval *b)
+{
char *temp_val = NULL;
- assert(a);
- assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- if (get_mode_n_vector_elems(a->mode) > 1 || get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
if (get_mode_modulo_shift(a->mode) != 0) {
- temp_val = alloca(sc_get_buffer_length());
+ temp_val = (char*) alloca(sc_get_buffer_length());
sc_val_from_ulong(get_mode_modulo_shift(a->mode), temp_val);
sc_mod(b->value, temp_val, temp_val);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
-/*
- * bitwise signed right shift
- */
-tarval *tarval_shrs(tarval *a, tarval *b) {
+ir_tarval *tarval_shr_unsigned(ir_tarval *a, unsigned b)
+{
+ ir_mode *mode = a->mode;
+ unsigned modulo = get_mode_modulo_shift(mode);
+ if (modulo != 0)
+ b %= modulo;
+ assert((unsigned)(long)b==b);
+ sc_shrI(a->value, (long)b, get_mode_size_bits(mode), mode_is_signed(mode), NULL);
+ return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
+}
+
+ir_tarval *tarval_shrs(ir_tarval *a, ir_tarval *b)
+{
char *temp_val = NULL;
- assert(a);
- assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- if (get_mode_n_vector_elems(a->mode) > 1 || get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
if (get_mode_modulo_shift(a->mode) != 0) {
- temp_val = alloca(sc_get_buffer_length());
+ temp_val = (char*) alloca(sc_get_buffer_length());
sc_val_from_ulong(get_mode_modulo_shift(a->mode), temp_val);
sc_mod(b->value, temp_val, temp_val);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
-/*
- * bitwise rotation to left
- */
-tarval *tarval_rotl(tarval *a, tarval *b) {
+ir_tarval *tarval_shrs_unsigned(ir_tarval *a, unsigned b)
+{
+ ir_mode *mode = a->mode;
+ unsigned modulo = get_mode_modulo_shift(mode);
+ if (modulo != 0)
+ b %= modulo;
+ assert((unsigned)(long)b==b);
+ sc_shrsI(a->value, (long)b, get_mode_size_bits(mode), mode_is_signed(mode), NULL);
+ return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
+}
+
+ir_tarval *tarval_rotl(ir_tarval *a, ir_tarval *b)
+{
char *temp_val = NULL;
- assert(a);
- assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- if (get_mode_n_vector_elems(a->mode) > 1 || get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
-
if (get_mode_modulo_shift(a->mode) != 0) {
- temp_val = alloca(sc_get_buffer_length());
+ temp_val = (char*) alloca(sc_get_buffer_length());
sc_val_from_ulong(get_mode_modulo_shift(a->mode), temp_val);
sc_mod(b->value, temp_val, temp_val);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
-/*
- * carry flag of the last operation
- */
-int tarval_carry(void) {
- panic("tarval_carry() requetsed: not implemented on all operations");
- return sc_had_carry();
-}
-
-/*
- * Output of tarvals
- */
-int tarval_snprintf(char *buf, size_t len, tarval *tv) {
+int tarval_snprintf(char *buf, size_t len, ir_tarval *tv)
+{
static const tarval_mode_info default_info = { TVO_NATIVE, NULL, NULL };
const char *str;
const tarval_mode_info *mode_info;
const char *prefix, *suffix;
- mode_info = tv->mode->tv_priv;
+ mode_info = (const tarval_mode_info*) tv->mode->tv_priv;
if (! mode_info)
mode_info = &default_info;
prefix = mode_info->mode_prefix ? mode_info->mode_prefix : "";
switch (get_mode_sort(tv->mode)) {
case irms_reference:
if (tv == tv->mode->null) return snprintf(buf, len, "NULL");
- /* fall through */
+ /* FALLTHROUGH */
case irms_int_number:
switch (mode_info->mode_output) {
str = sc_print(tv->value, get_mode_size_bits(tv->mode), SC_OCT, 0);
break;
- case TVO_HEX:
case TVO_NATIVE:
+ prefix = "0x";
+ case TVO_HEX:
default:
str = sc_print(tv->value, get_mode_size_bits(tv->mode), SC_HEX, 0);
break;
case irms_float_number:
switch (mode_info->mode_output) {
case TVO_HEX:
- return snprintf(buf, len, "%s%s%s", prefix, fc_print(tv->value, tv_buf, sizeof(tv_buf), FC_PACKED), suffix);
+ return snprintf(buf, len, "%s%s%s", prefix, fc_print((const fp_value*) tv->value, tv_buf, sizeof(tv_buf), FC_PACKED), suffix);
case TVO_HEXFLOAT:
- return snprintf(buf, len, "%s%s%s", prefix, fc_print(tv->value, tv_buf, sizeof(tv_buf), FC_HEX), suffix);
+ return snprintf(buf, len, "%s%s%s", prefix, fc_print((const fp_value*) tv->value, tv_buf, sizeof(tv_buf), FC_HEX), suffix);
case TVO_FLOAT:
case TVO_NATIVE:
default:
- return snprintf(buf, len, "%s%s%s", prefix, fc_print(tv->value, tv_buf, sizeof(tv_buf), FC_DEC), suffix);
+ return snprintf(buf, len, "%s%s%s", prefix, fc_print((const fp_value*) tv->value, tv_buf, sizeof(tv_buf), FC_DEC), suffix);
}
- break;
case irms_internal_boolean:
switch (mode_info->mode_output) {
return snprintf(buf, len, "%s%s%s", prefix, (tv == tarval_b_true) ? "true" : "false", suffix);
}
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
+ default:
if (tv == tarval_bad)
return snprintf(buf, len, "<TV_BAD>");
- if (tv == tarval_undefined)
- return snprintf(buf, len, "<TV_UNDEF>");
- if (tv == tarval_unreachable)
- return snprintf(buf, len, "<TV_UNREACHABLE>");
- if (tv == tarval_reachable)
+ else if (tv == tarval_undefined)
+ return snprintf(buf, len, "<TV_UNDEFINED>");
+ else if (tv == tarval_reachable)
return snprintf(buf, len, "<TV_REACHABLE>");
- return snprintf(buf, len, "<TV_??""?>");
+ else if (tv == tarval_unreachable)
+ return snprintf(buf, len, "<TV_UNREACHABLE>");
+ else
+ return snprintf(buf, len, "<TV_??""?>");
}
-
- return 0;
}
-/**
- * Output of tarvals to stdio.
- */
-int tarval_printf(tarval *tv) {
+int tarval_printf(ir_tarval *tv)
+{
char buf[1024];
int res;
res = tarval_snprintf(buf, sizeof(buf), tv);
assert(res < (int) sizeof(buf) && "buffer to small for tarval_snprintf");
- printf(buf);
+ printf("%s", buf);
return res;
}
-char *get_tarval_bitpattern(tarval *tv) {
+char *get_tarval_bitpattern(ir_tarval *tv)
+{
int i, j, pos = 0;
int n = get_mode_size_bits(tv->mode);
int bytes = (n + 7) / 8;
- char *res = xmalloc((n + 1) * sizeof(char));
+ char *res = XMALLOCN(char, n + 1);
unsigned char byte;
- for(i = 0; i < bytes; i++) {
+ for (i = 0; i < bytes; i++) {
byte = get_tarval_sub_bits(tv, i);
- for(j = 1; j < 256; j <<= 1)
- if(pos < n)
+ for (j = 1; j < 256; j <<= 1)
+ if (pos < n)
res[pos++] = j & byte ? '1' : '0';
}
return res;
}
-/*
- * access to the bitpattern
- */
-unsigned char get_tarval_sub_bits(tarval *tv, unsigned byte_ofs) {
+unsigned char get_tarval_sub_bits(ir_tarval *tv, unsigned byte_ofs)
+{
switch (get_mode_arithmetic(tv->mode)) {
case irma_twos_complement:
return sc_sub_bits(tv->value, get_mode_size_bits(tv->mode), byte_ofs);
case irma_ieee754:
- return fc_sub_bits(tv->value, get_mode_size_bits(tv->mode), byte_ofs);
+ case irma_x86_extended_float:
+ return fc_sub_bits((const fp_value*) tv->value, get_mode_size_bits(tv->mode), byte_ofs);
default:
- panic("get_tarval_sub_bits(): arithmetic mode not supported");
+ panic("arithmetic mode not supported");
}
}
-/*
- * Specify the output options of one mode.
- *
- * This functions stores the modinfo, so DO NOT DESTROY it.
- *
- * Returns zero on success.
- */
-int set_tarval_mode_output_option(ir_mode *mode, const tarval_mode_info *modeinfo) {
+int set_tarval_mode_output_option(ir_mode *mode, const tarval_mode_info *modeinfo)
+{
assert(mode);
mode->tv_priv = modeinfo;
return 0;
}
-/*
- * Returns the output options of one mode.
- *
- * This functions returns the mode info of a given mode.
- */
-const tarval_mode_info *get_tarval_mode_output_option(ir_mode *mode) {
+const tarval_mode_info *get_tarval_mode_output_option(ir_mode *mode)
+{
assert(mode);
- return mode->tv_priv;
+ return (const tarval_mode_info*) mode->tv_priv;
}
-/*
- * Returns non-zero if a given (integer) tarval has only one single bit
- * set.
- */
-int tarval_is_single_bit(tarval *tv) {
+int tarval_is_single_bit(ir_tarval *tv)
+{
int i, l;
int bits;
return bits;
}
-/*
- * Returns non-zero if the mantissa of a floating point IEEE-754
- * tarval is zero (i.e. 1.0Exxx)
- */
-int tarval_ieee754_zero_mantissa(tarval *tv) {
- assert(get_mode_arithmetic(tv->mode) == irma_ieee754);
- return fc_zero_mantissa(tv->value);
-}
+int get_tarval_popcount(ir_tarval *tv)
+{
+ int i, l;
+ int bits;
+
+ if (!tv || tv == tarval_bad) return -1;
+ if (! mode_is_int(tv->mode)) return -1;
+
+ l = get_mode_size_bytes(tv->mode);
+ for (bits = 0, i = l - 1; i >= 0; --i) {
+ unsigned char v = get_tarval_sub_bits(tv, (unsigned)i);
-/* Returns the exponent of a floating point IEEE-754 tarval. */
-int tarval_ieee754_get_exponent(tarval *tv) {
- assert(get_mode_arithmetic(tv->mode) == irma_ieee754);
- return fc_get_exponent(tv->value);
+ bits += popcount(v);
+ }
+ return bits;
}
-/*
- * Check if the tarval can be converted to the given mode without
- * precision loss.
- */
-int tarval_ieee754_can_conv_lossless(tarval *tv, ir_mode *mode) {
- char exp_size, mant_size;
- switch (get_mode_size_bits(mode)) {
- case 32:
- exp_size = 8; mant_size = 23;
- break;
- case 64:
- exp_size = 11; mant_size = 52;
- break;
- case 80:
- case 96:
- exp_size = 15; mant_size = 64;
- break;
- default:
- panic("Unsupported mode in tarval_ieee754_can_conv_lossless()");
- return 0;
+int get_tarval_lowest_bit(ir_tarval *tv)
+{
+ int i, l;
+
+ if (!tv || tv == tarval_bad) return -1;
+ if (! mode_is_int(tv->mode)) return -1;
+
+ l = get_mode_size_bytes(tv->mode);
+ for (i = 0; i < l; ++i) {
+ unsigned char v = get_tarval_sub_bits(tv, (unsigned)i);
+
+ if (v)
+ return ntz(v) + i * 8;
}
- return fc_can_lossless_conv_to(tv->value, exp_size, mant_size);
+ return -1;
+}
+
+int tarval_zero_mantissa(ir_tarval *tv)
+{
+ assert(get_mode_arithmetic(tv->mode) == irma_ieee754
+ || get_mode_arithmetic(tv->mode) == irma_x86_extended_float);
+ return fc_zero_mantissa((const fp_value*) tv->value);
}
-/* Set the immediate precision for IEEE-754 results. */
-unsigned tarval_ieee754_set_immediate_precision(unsigned bits) {
- return fc_set_immediate_precision(bits);
+int tarval_get_exponent(ir_tarval *tv)
+{
+ assert(get_mode_arithmetic(tv->mode) == irma_ieee754
+ || get_mode_arithmetic(tv->mode) == irma_x86_extended_float);
+ return fc_get_exponent((const fp_value*) tv->value);
+}
+
+int tarval_ieee754_can_conv_lossless(ir_tarval *tv, ir_mode *mode)
+{
+ const float_descriptor_t *desc = get_descriptor(mode);
+ return fc_can_lossless_conv_to((const fp_value*) tv->value, desc);
}
-/* Returns non-zero if the result of the last IEEE-754 operation was exact. */
-unsigned tarval_ieee754_get_exact(void) {
+unsigned tarval_ieee754_get_exact(void)
+{
return fc_is_exact();
}
-/* check if its the a floating point NaN */
-int tarval_is_NaN(tarval *tv) {
+int tarval_is_NaN(ir_tarval *tv)
+{
if (! mode_is_float(tv->mode))
return 0;
- return fc_is_nan(tv->value);
+ return fc_is_nan((const fp_value*) tv->value);
}
-/* check if its the a floating point +inf */
-int tarval_is_plus_inf(tarval *tv) {
+int tarval_is_plus_inf(ir_tarval *tv)
+{
if (! mode_is_float(tv->mode))
return 0;
- return fc_is_inf(tv->value) && !fc_is_negative(tv->value);
+ return fc_is_inf((const fp_value*) tv->value)
+ && !fc_is_negative((const fp_value*) tv->value);
}
-/* check if its the a floating point -inf */
-int tarval_is_minus_inf(tarval *tv) {
+int tarval_is_minus_inf(ir_tarval *tv)
+{
if (! mode_is_float(tv->mode))
return 0;
- return fc_is_inf(tv->value) && fc_is_negative(tv->value);
+ return fc_is_inf((const fp_value*) tv->value)
+ && fc_is_negative((const fp_value*) tv->value);
}
-/* check if the tarval represents a finite value */
-int tarval_is_finite(tarval *tv) {
+int tarval_is_finite(ir_tarval *tv)
+{
if (mode_is_float(tv->mode))
- return !fc_is_nan(tv->value) && !fc_is_inf(tv->value);
+ return !fc_is_nan((const fp_value*) tv->value)
+ && !fc_is_inf((const fp_value*) tv->value);
return 1;
}
-/*
- * Sets the overflow mode for integer operations.
- */
-void tarval_set_integer_overflow_mode(tarval_int_overflow_mode_t ov_mode) {
+void tarval_set_integer_overflow_mode(tarval_int_overflow_mode_t ov_mode)
+{
int_overflow_mode = ov_mode;
}
-/* Get the overflow mode for integer operations. */
-tarval_int_overflow_mode_t tarval_get_integer_overflow_mode(void) {
+tarval_int_overflow_mode_t tarval_get_integer_overflow_mode(void)
+{
return int_overflow_mode;
}
-/* Enable/Disable floating point constant folding. */
-int tarval_enable_fp_ops(int enable) {
- int old = !no_float;
-
- no_float = !enable;
- return old;
-}
-
/**
* default mode_info for output as HEX
*/
NULL,
};
-/*
- * Initialization of the tarval module: called before init_mode()
- */
-void init_tarval_1(long null_value) {
- /* if these assertion fail, tarval_is_constant() will follow ... */
- assert(tarval_b_false == &reserved_tv[0] && "b_false MUST be the first reserved tarval!");
- assert(tarval_b_true == &reserved_tv[1] && "b_true MUST be the second reserved tarval!");
-
+void init_tarval_1(long null_value, int support_quad_precision)
+{
_null_value = null_value;
/* initialize the sets holding the tarvals with a comparison function and
* an initial size, which is the expected number of constants */
tarvals = new_set(cmp_tv, N_CONSTANTS);
values = new_set(memcmp, N_CONSTANTS);
- /* init strcalc with precision of 68 to support floating point values with 64
- * bit mantissa (needs extra bits for rounding and overflow) */
- init_strcalc(68);
- init_fltcalc(0);
+ /* calls init_strcalc() with needed size */
+ init_fltcalc(support_quad_precision ? 112 : 64);
}
-/*
- * Initialization of the tarval module: called after init_mode()
- */
-void init_tarval_2(void) {
+void init_tarval_2(void)
+{
tarval_bad->kind = k_tarval;
tarval_bad->mode = mode_BAD;
- tarval_bad->value = INT_TO_PTR(resid_tarval_bad);
tarval_undefined->kind = k_tarval;
tarval_undefined->mode = mode_ANY;
- tarval_undefined->value = INT_TO_PTR(resid_tarval_undefined);
tarval_b_true->kind = k_tarval;
tarval_b_true->mode = mode_b;
- tarval_b_true->value = INT_TO_PTR(resid_tarval_b_true);
tarval_b_false->kind = k_tarval;
tarval_b_false->mode = mode_b;
- tarval_b_false->value = INT_TO_PTR(resid_tarval_b_false);
tarval_unreachable->kind = k_tarval;
tarval_unreachable->mode = mode_X;
- tarval_unreachable->value = INT_TO_PTR(resid_tarval_unreachable);
tarval_reachable->kind = k_tarval;
tarval_reachable->mode = mode_X;
- tarval_reachable->value = INT_TO_PTR(resid_tarval_reachable);
/*
* assign output modes that are compatible with the
set_tarval_mode_output_option(mode_P, &hex_output);
}
-/* free all memory occupied by tarval. */
-void finish_tarval(void) {
+void finish_tarval(void)
+{
finish_strcalc();
finish_fltcalc();
del_set(tarvals); tarvals = NULL;
del_set(values); values = NULL;
}
-int (is_tarval)(const void *thing) {
+int (is_tarval)(const void *thing)
+{
return _is_tarval(thing);
}
-
-/****************************************************************************
- * end of tv.c
- ****************************************************************************/
projects / libfirm / blobdiff