/*
- * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
* values.
* @date 2003
* @author Mathias Heil
- * @version $Id$
* @brief
*
* Values are stored in a format depending upon chosen arithmetic
#include <assert.h>
#include <stdlib.h>
#include <string.h>
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
#include <stdlib.h>
+#include <strings.h>
#include "bitfiddle.h"
#include "tv_t.h"
#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"
static float_to_int_mode current_float_to_int_mode = TRUNCATE;
+/* set this to true if infinity should be clipped to +/- MAX_FLOAT */
#define SWITCH_NOINFINITY 0
+/* set this to true if denormals should be clipped to zero */
#define SWITCH_NODENORMALS 0
/****************************************************************************
/** if this is set non-zero, the constant folding for floating point is OFF */
static int no_float = 0;
-/** IEEE-754r half precision */
-static const ieee_descriptor_t half_desc = { 5, 10, 0, NORMAL };
-/** IEEE-754 single precision */
-static const ieee_descriptor_t single_desc = { 8, 23, 0, NORMAL };
-/** IEEE-754 double precision */
-static const ieee_descriptor_t double_desc = { 11, 52, 0, NORMAL };
-/** Intel x87 extended precision */
-static const ieee_descriptor_t extended_desc = { 15, 63, 1, NORMAL };
-
-/** IEEE-754r quad precision */
-static const ieee_descriptor_t quad_desc = { 15, 112, 0, NORMAL };
-
/****************************************************************************
* private functions
****************************************************************************/
#ifndef NDEBUG
-static int hash_val(const void *value, unsigned int length);
-static int hash_tv(ir_tarval *tv);
+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 */
else
panic("%s:%d: Invalid tarval (null)", file, line);
}
+
+inline static
#ifdef __GNUC__
-inline static void tarval_verify(ir_tarval *tv) __attribute__ ((unused));
+ __attribute__((unused))
#endif
-
-inline static void tarval_verify(ir_tarval *tv)
+void tarval_verify(ir_tarval *tv)
{
assert(tv);
assert(tv->mode);
#endif /* NDEBUG */
/** Hash a tarval. */
-static int hash_tv(ir_tarval *tv)
+static unsigned hash_tv(ir_tarval *tv)
{
- return (PTR_TO_INT(tv->value) ^ PTR_TO_INT(tv->mode)) + tv->length;
+ 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)
+static unsigned hash_val(const void *value, size_t length)
{
- unsigned int i;
- unsigned int hash = 0;
+ size_t i;
+ unsigned hash = 0;
/* scramble the byte - array */
for (i = 0; i < length; ++i) {
}
/** finds tarval with value/mode or creates new tarval */
-static ir_tarval *get_tarval(const void *value, int length, ir_mode *mode)
+static ir_tarval *get_tarval(const void *value, size_t length, ir_mode *mode)
{
ir_tarval tv;
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);
/**
* handle overflow
*/
-static ir_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 ... */
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 ... */
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:
-#ifdef SWITCH_NOINFINITY
- if (fc_is_inf(value)) {
+#if SWITCH_NOINFINITY
+ if (fc_is_inf((const fp_value*) value)) {
/* clip infinity to maximum value */
- return fc_is_negative(value) ? get_mode_min(mode) : get_mode_max(mode);
+ return fc_is_negative((const fp_value*) value) ? get_mode_min(mode) : get_mode_max(mode);
}
#endif
-
-#ifdef SWITCH_NODENORMALS
- if (fc_is_subnormal(value)) {
+#if SWITCH_NODENORMALS
+ if (fc_is_subnormal((const fp_value*) value)) {
/* clip denormals to zero */
return get_mode_null(mode);
}
/**
* get the float descriptor for given mode.
*/
-static const ieee_descriptor_t *get_descriptor(const ir_mode *mode)
-{
- switch (get_mode_size_bits(mode)) {
- case 16: return &half_desc;
- case 32: return &single_desc;
- case 64: return &double_desc;
- case 80:
- case 96:
- case 128: return &extended_desc; /* FIXME: HACK for x86 where we have
- sizeof(long double)==16 with 10 byte
- real payload */
- /* case 128: return &quad_desc; */
- default:
- panic("Unsupported mode in get_descriptor()");
- }
+static const float_descriptor_t *get_descriptor(const ir_mode *mode)
+{
+ return &mode->float_desc;
}
ir_tarval *new_integer_tarval_from_str(const char *str, size_t len, char sign,
*/
ir_tarval *new_tarval_from_str(const char *str, size_t len, ir_mode *mode)
{
- const ieee_descriptor_t *desc;
+ 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:
- panic("Unsupported tarval creation with mode %F", mode);
-
case irms_internal_boolean:
/* match [tT][rR][uU][eE]|[fF][aA][lL][sS][eE] */
if (!strcasecmp(str, "true"))
/* FALLTHROUGH */
case irms_int_number:
return new_tarval_from_str_int(str, len, mode);
+ default:
+ panic("Unsupported tarval creation with mode %F", mode);
}
- panic("Unsupported tarval creation with mode %F", mode);
}
/*
return sc_val_to_long(tv->value);
}
-ir_tarval *new_tarval_from_double(long double d, ir_mode *mode)
+ir_tarval *new_tarval_from_long_double(long double d, ir_mode *mode)
{
- const ieee_descriptor_t *desc;
+ const float_descriptor_t *desc;
assert(mode && (get_mode_sort(mode) == irms_float_number));
desc = get_descriptor(mode);
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
}
+ir_tarval *new_tarval_from_double(double d, ir_mode *mode)
+{
+ return new_tarval_from_long_double(d, mode);
+}
+
/* returns non-zero if can be converted to double */
int tarval_is_double(ir_tarval *tv)
{
return (get_mode_sort(tv->mode) == irms_float_number);
}
-long double get_tarval_double(ir_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);
}
ir_tarval *get_tarval_max(ir_mode *mode)
{
- const ieee_descriptor_t *desc;
-
- assert(mode);
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
+ const float_descriptor_t *desc;
switch (get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- panic("mode %F does not support maximum value", mode);
-
case irms_internal_boolean:
return tarval_b_true;
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;
}
ir_tarval *get_tarval_min(ir_mode *mode)
{
- const ieee_descriptor_t *desc;
-
- assert(mode);
- if (get_mode_n_vector_elems(mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
+ const float_descriptor_t *desc;
switch (get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- panic("mode %F does not support minimum value", mode);
-
case irms_internal_boolean:
return tarval_b_false;
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 */
ir_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:
- panic("mode %F does not support null value", 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;
}
ir_tarval *get_tarval_one(ir_mode *mode)
{
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1)
- panic("vector arithmetic not implemented yet");
-
switch (get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- panic("mode %F does not support one value", 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;
}
ir_tarval *get_tarval_all_one(ir_mode *mode)
{
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1)
- panic("vector arithmetic not implemented yet");
-
switch (get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- panic("mode %F does not support all-one value", 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(ir_tarval *tv)
{
- int num_res = sizeof(reserved_tv) / sizeof(reserved_tv[0]);
+ size_t const num_res = ARRAY_SIZE(reserved_tv);
/* reserved tarvals are NOT constants. Note that although
tarval_b_true and tarval_b_false are reserved, they are constants of course. */
ir_tarval *get_tarval_minus_one(ir_mode *mode)
{
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1)
- panic("vector arithmetic not implemented yet");
-
switch (get_mode_sort(mode)) {
- case irms_control_flow:
- case irms_memory:
- case irms_auxiliary:
- case irms_internal_boolean:
- panic("mode %F does not support minus one value", 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;
}
ir_tarval *get_tarval_nan(ir_mode *mode)
{
- const ieee_descriptor_t *desc;
-
- assert(mode);
- if (get_mode_n_vector_elems(mode) > 1)
- panic("vector arithmetic not implemented yet");
+ const float_descriptor_t *desc;
if (get_mode_sort(mode) == irms_float_number) {
desc = get_descriptor(mode);
ir_tarval *get_tarval_plus_inf(ir_mode *mode)
{
- assert(mode);
- if (get_mode_n_vector_elems(mode) > 1)
- panic("vector arithmetic not implemented yet");
-
if (get_mode_sort(mode) == irms_float_number) {
- const ieee_descriptor_t *desc = get_descriptor(mode);
+ 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
ir_tarval *get_tarval_minus_inf(ir_mode *mode)
{
- assert(mode);
-
- if (get_mode_n_vector_elems(mode) > 1)
- panic("vector arithmetic not implemented yet");
-
if (get_mode_sort(mode) == irms_float_number) {
- const ieee_descriptor_t *desc = get_descriptor(mode);
+ 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
*/
int tarval_is_negative(ir_tarval *a)
{
- if (get_mode_n_vector_elems(a->mode) > 1)
- panic("vector arithmetic not implemented yet");
-
switch (get_mode_sort(a->mode)) {
case irms_int_number:
if (!mode_is_signed(a->mode)) return 0;
return sc_comp(a->value, get_mode_null(a->mode)->value) == -1 ? 1 : 0;
case irms_float_number:
- return fc_is_negative(a->value);
+ return fc_is_negative((const fp_value*) a->value);
default:
panic("mode %F does not support negation value", a->mode);
/*
* comparison
*/
-pn_Cmp tarval_cmp(ir_tarval *a, ir_tarval *b)
+ir_relation tarval_cmp(ir_tarval *a, ir_tarval *b)
{
carry_flag = -1;
}
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 */
- panic("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;
+ switch (fc_comp((const fp_value*) a->value, (const fp_value*) b->value)) {
+ case -1: return ir_relation_less;
+ case 0: return ir_relation_equal;
+ case 1: return ir_relation_greater;
+ case 2: return ir_relation_unordered;
+ default: return ir_relation_false;
}
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) == 1 ? ir_relation_greater : ir_relation_less;
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;
}
/*
{
char *buffer;
fp_value *res = NULL;
- const ieee_descriptor_t *desc;
+ const float_descriptor_t *desc;
int len;
carry_flag = -1;
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;
-
- /* cast float to something */
+ /* cast float to something */
case irms_float_number:
switch (get_mode_sort(dst_mode)) {
case irms_float_number:
desc = get_descriptor(dst_mode);
- fc_cast(src->value, desc, NULL);
+ 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 (current_float_to_int_mode) {
case TRUNCATE:
- res = fc_int(src->value, NULL);
+ res = fc_int((const fp_value*) src->value, NULL);
break;
case ROUND:
- res = fc_rnd(src->value, NULL);
+ res = fc_rnd((const fp_value*) src->value, NULL);
break;
}
- buffer = alloca(sc_get_buffer_length());
+ 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 */
len = snprintf(buffer, 100, "%s",
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;
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);
/* 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);
/*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:
carry_flag = -1;
- 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) {
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);
carry_flag = sc_get_bit_at(buffer, get_mode_size_bits(a->mode));
return get_tarval_overflow(buffer, a->length, a->mode);
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:
carry_flag = -1;
- 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 (dst_mode != NULL) {
if (a->mode != dst_mode)
a = tarval_convert_to(a, dst_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);
carry_flag = sc_get_bit_at(buffer, get_mode_size_bits(a->mode));
return get_tarval_overflow(buffer, a->length, a->mode);
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:
carry_flag = -1;
- 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);
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
- */
-ir_tarval *tarval_quo(ir_tarval *a, ir_tarval *b)
-{
- assert((a->mode == b->mode) && mode_is_float(a->mode));
-
- carry_flag = -1;
-
- 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);
-}
-
-/*
- * integer division
+ * division
* overflow is impossible, but look out for division by zero
*/
ir_tarval *tarval_div(ir_tarval *a, ir_tarval *b)
{
- assert((a->mode == b->mode) && mode_is_int(a->mode));
+ ir_mode *mode = a->mode;
+ assert(mode == b->mode);
carry_flag = -1;
- if (get_mode_n_vector_elems(a->mode) > 1) {
- /* vector arithmetic not implemented yet */
- return tarval_bad;
- }
+ if (mode_is_int(mode)) {
+ /* x/0 error */
+ if (b == get_mode_null(mode))
+ return tarval_bad;
- /* 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);
+ /* 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);
+ }
}
/*
carry_flag = -1;
- 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 */
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->mode == b->mode) && mode_is_int(a->mode));
carry_flag = -1;
- 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 */
carry_flag = -1;
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());
+ buffer = (char*) alloca(sc_get_buffer_length());
sc_neg(a->value, buffer);
return get_tarval_overflow(buffer, a->length, a->mode);
}
/*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_comp((const fp_value*) a->value,
+ (const fp_value*) get_mode_null(a->mode)->value) == -1) {
+ fc_neg((const fp_value*) a->value, NULL);
return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
}
return a;
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);
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);
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);
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);
carry_flag = -1;
- 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);
carry_flag = -1;
- 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);
carry_flag = -1;
- 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);
carry_flag = -1;
- 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);
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 : "";
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:
- 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)
- return snprintf(buf, len, "<TV_REACHABLE>");
+ default:
return snprintf(buf, len, "<TV_??""?>");
}
-
- return 0;
}
/**
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");
}
{
assert(mode);
- return mode->tv_priv;
+ return (const tarval_mode_info*) mode->tv_priv;
}
/*
* Returns non-zero if the mantissa of a floating point IEEE-754
* tarval is zero (i.e. 1.0Exxx)
*/
-int tarval_ieee754_zero_mantissa(ir_tarval *tv)
+int tarval_zero_mantissa(ir_tarval *tv)
{
- assert(get_mode_arithmetic(tv->mode) == irma_ieee754);
- return fc_zero_mantissa(tv->value);
+ 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);
}
/* Returns the exponent of a floating point IEEE-754 tarval. */
-int tarval_ieee754_get_exponent(ir_tarval *tv)
+int tarval_get_exponent(ir_tarval *tv)
{
- assert(get_mode_arithmetic(tv->mode) == irma_ieee754);
- return fc_get_exponent(tv->value);
+ 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 ieee_descriptor_t *desc = get_descriptor(mode);
- return fc_can_lossless_conv_to(tv->value, desc);
-}
-
-/* Set the immediate precision for IEEE-754 results. */
-unsigned tarval_ieee754_set_immediate_precision(unsigned bits)
-{
- return fc_set_immediate_precision(bits);
+ 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. */
return fc_is_exact();
}
-/* Return the size of the mantissa in bits (including possible
- implicit bits) for the given mode. */
-unsigned tarval_ieee754_get_mantissa_size(const ir_mode *mode)
-{
- const ieee_descriptor_t *desc;
-
- assert(get_mode_arithmetic(mode) == irma_ieee754);
- desc = get_descriptor(mode);
-
- return desc->mantissa_size + desc->explicit_one;
-}
-
/* check if its the a floating point NaN */
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 */
{
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 */
{
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(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;
}
{
return _is_tarval(thing);
}
-
-/****************************************************************************
- * end of tv.c
- ****************************************************************************/
projects / libfirm / blobdiff