* Matthias Heil
*
* NOTES
- * Internal storage for tarvals, 1st draft:
- * Integers as well as pointers are stored in a hex formatted string holding
- * 16 characters. Booleans are not stored as there are only two of them.
- *
- * Floats are just reinterpreted as byte strings, because I am not sure if
- * there is loss if I convert float to long double and back and furthermore
- * the implementation of a fully ieee compatible floating point emulation
- * is not sensible for now
- * With this information it is easy to decide the kind of stored value:
- * Integers have size 16, floats 4, doubles 8, long doubles 12.
+ * Values are stored in a format depending upon chosen arithmetic
+ * module. Default uses strcalc and fltcalc.
******/
/* This implementation assumes:
- * both host and target have IEEE-754 floating-point arithmetic. */
-
-/* !!! float and double divides MUST NOT SIGNAL !!! */
-/* @@@ query the floating-point expception status flags */
-
-/* @@@ Problem: All Values are stored twice, once as Univ_*s and a 2nd
- time in their real target mode. :-( */
-
-#define MAX_INT_LENGTH 8
-#define CHAR_BUFFER_SIZE ((MAX_INT_LENGTH) * 2)
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+ * - target has IEEE-754 floating-point arithmetic. */
#include <assert.h> /* assertions */
#include <stdlib.h> /* atoi() */
#include <string.h> /* nice things for strings */
+#include <strings.h> /* strings.h also includes bsd only function strcasecmp */
+#include <stdlib.h>
+#include <alloca.h>
-#include <malloc.h>
#include "tv_t.h"
#include "set.h" /* to store tarvals in */
#include "tune.h" /* some constants */
#include "entity_t.h" /* needed to store pointers to entities */
#include "irmode.h" /* defines modes etc */
#include "irmode_t.h"
-#include "irnode.h" /* defines boolean return values */
-#include "xprintf.h"
-#include "xp_help.h"
+#include "irnode.h" /* defines boolean return values (pnc_number)*/
#include "host.h"
#include "strcalc.h"
#include "fltcalc.h"
+/* XXX hack until theres's a proper interface */
+#define BAD 1
+#define SATURATE 2
+#define WRAP 3
+#define GET_OVERFLOW_MODE() BAD
+
+/* unused, float to int doesn't work yet */
+#define TRUNCATE 1
+#define ROUND 2
+#define GET_FLOAT_TO_INT_MODE() TRUNCATE
+
+#define SWITCH_NOINFINITY 0
+#define SWITCH_NODENORMALS 0
+
/****************************************************************************
* local definitions and macros
****************************************************************************/
printf("%s:%d: Invalid tarval (null)", file, line);
assert(0);
}
+#ifdef __GNUC__
+INLINE static void tarval_verify(tarval *tv) __attribute__ ((unused));
+#endif
-static void tarval_verify(tarval *tv)
+INLINE static void tarval_verify(tarval *tv)
{
assert(tv);
assert(tv->mode);
tv.mode = mode;
tv.length = length;
- if (length > 0)
+ if (length > 0) {
/* if there already is such a value, it is returned, else value
* is copied into the set */
tv.value = INSERT_VALUE(value, length);
- else
+ } else {
tv.value = value;
-
+ }
/* if there is such a tarval, it is returned, else tv is copied
* into the set */
return (tarval *)INSERT_TARVAL(&tv);
}
-/**
- * Returns non-zero if a tarval overflows.
- *
- * @todo Implementation did not work on all modes
- */
-static int overflows(tarval *tv)
+static tarval *get_tarval_overflow(const void *value, int length, ir_mode *mode)
{
- switch (get_mode_sort(tv->mode))
+ switch (get_mode_sort(mode))
{
- case irms_character:
case irms_int_number:
- if (sc_comp(tv->value, get_mode_max(tv->mode)->value) == 1) return 1;
- if (sc_comp(tv->value, get_mode_min(tv->mode)->value) == -1) return 1;
+ if (sc_comp(value, get_mode_max(mode)->value) == 1) {
+ switch (GET_OVERFLOW_MODE()) {
+ case SATURATE:
+ return get_mode_max(mode);
+ case WRAP:
+ {
+ char *temp = alloca(sc_get_buffer_length());
+ char *diff = alloca(sc_get_buffer_length());
+ sc_sub(get_mode_max(mode)->value, get_mode_min(mode)->value, diff);
+ sc_val_from_ulong(1, temp);
+ sc_add(diff, temp, diff);
+ sc_sub(value, diff, temp);
+ while (sc_comp(temp, get_mode_max(mode)->value) == 1)
+ sc_sub(temp, diff, temp);
+ return get_tarval(temp, length, mode);
+ }
+ case BAD:
+ return tarval_bad;
+ default:
+ return get_tarval(value, length, mode);
+ }
+ }
+ if (sc_comp(value, get_mode_min(mode)->value) == -1) {
+ switch (GET_OVERFLOW_MODE()) {
+ case SATURATE:
+ return get_mode_min(mode);
+ case WRAP:
+ {
+ char *temp = alloca(sc_get_buffer_length());
+ char *diff = alloca(sc_get_buffer_length());
+ sc_sub(get_mode_max(mode)->value, get_mode_min(mode)->value, diff);
+ sc_val_from_ulong(1, temp);
+ sc_add(diff, temp, diff);
+ sc_add(value, diff, temp);
+ while (sc_comp(temp, get_mode_max(mode)->value) == 1)
+ sc_add(temp, diff, temp);
+ return get_tarval(temp, length, mode);
+ }
+ case BAD:
+ return tarval_bad;
+ default:
+ return get_tarval(value, length, mode);
+ }
+ }
break;
case irms_float_number:
- if (fc_comp(tv->value, get_mode_max(tv->mode)->value) == 1) return 1;
- if (fc_comp(tv->value, get_mode_min(tv->mode)->value) == -1) return 1;
- break;
+ if (SWITCH_NOINFINITY && fc_is_inf(value))
+ {
+ return fc_is_negative(value)?get_mode_min(mode):get_mode_max(mode);
+ }
+ if (SWITCH_NODENORMALS && fc_is_subnormal(value))
+ {
+ return get_mode_null(mode);
+ }
+ break;
default:
break;
}
-
- return 0;
+ return get_tarval(value, length, mode);
}
-/****************************************************************************
+
+/*
* public variables declared in tv.h
- ****************************************************************************/
+ */
tarval *tarval_bad;
tarval *tarval_undefined;
tarval *tarval_b_false;
tarval *tarval_b_true;
tarval *tarval_P_void;
-/****************************************************************************
+/*
* public functions declared in tv.h
- ****************************************************************************/
+ */
+
/*
* Constructors =============================================================
*/
switch (get_mode_sort(mode))
{
+ case irms_control_flow:
+ case irms_memory:
case irms_auxiliary:
assert(0);
break;
case irms_internal_boolean:
- /* match tTrRuUeE/fFaAlLsSeE */
+ /* match [tT][rR][uU][eE]|[fF][aA][lL][sS][eE] */
if (strcasecmp(str, "true")) return tarval_b_true;
else if (strcasecmp(str, "false")) return tarval_b_true;
else
+ /* XXX This is C semantics */
return atoi(str) ? tarval_b_true : tarval_b_false;
case irms_float_number:
- fc_val_from_str(str, len);
+ 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:
+ fc_val_from_str(str, len, 15, 64, NULL);
+ break;
+ }
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
case irms_int_number:
case irms_character:
- sc_val_from_str(str, len);
+ sc_val_from_str(str, len, NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
case irms_reference:
return NULL;
}
-#if 0
-int tarval_is_str(tarval *tv)
-{
- ANNOUNCE();
- assert(tv);
-
- return ((get_mode_sort(tv->mode) == reference) && (tv->value != NULL) && (tv->length > 0));
-}
-char *tarval_to_str(tarval *tv)
-{
- ANNOUNCE();
- assert(tarval_is_str(tv));
- return (char *)tv->value;
-}
-#endif
-
+/*
+ * helper function, create a tarval from long
+ */
tarval *new_tarval_from_long(long l, ir_mode *mode)
{
ANNOUNCE();
- assert(mode && !(get_mode_sort(mode) == irms_auxiliary));
+ assert(mode && !((get_mode_sort(mode) == irms_memory)||(get_mode_sort(mode)==irms_control_flow)||(get_mode_sort(mode)==irms_auxiliary)));
switch(get_mode_sort(mode))
{
case irms_internal_boolean:
- /* XXX C-Semantics ! */
+ /* XXX C semantics ! */
return l ? tarval_b_true : tarval_b_false ;
case irms_int_number:
case irms_character:
- sc_val_from_long(l);
+ sc_val_from_long(l, NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode);
case irms_float_number:
return NULL;
}
+/* returns non-zero if can be converted to long */
int tarval_is_long(tarval *tv)
{
ANNOUNCE();
- return ((get_mode_sort(tv->mode) == irms_int_number) || (get_mode_sort(tv->mode) == irms_character));
+ if (get_mode_sort(tv->mode) != irms_int_number) return 0;
+
+ if (get_mode_size_bits(tv->mode) > 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)
+ {
+ /* really doesn't fit */
+ return 0;
+ }
+ }
+ return 1;
}
/* this might overflow the machine's long, so use only with small values */
long tarval_to_long(tarval* tv)
{
ANNOUNCE();
- assert(tv && get_mode_sort(tv->mode) == irms_int_number);
+ assert(tarval_is_long(tv) && "tarval too big to fit in long");
- return sc_val_to_long(tv->value); /* might overflow */
+ return sc_val_to_long(tv->value);
}
tarval *new_tarval_from_double(long double d, ir_mode *mode)
ANNOUNCE();
assert(mode && (get_mode_sort(mode) == irms_float_number));
- fc_val_from_float(d);
+ switch (get_mode_size_bits(mode)) {
+ case 32:
+ fc_val_from_float(d, 8, 23, NULL);
+ break;
+ case 64:
+ fc_val_from_float(d, 11, 52, NULL);
+ break;
+ case 80:
+ fc_val_from_float(d, 15, 64, NULL);
+ break;
+ }
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)
{
ANNOUNCE();
ANNOUNCE();
assert(tv);
/* tv->value == NULL means dereferencing a null pointer */
- return ((get_mode_sort(tv->mode) == irms_reference) && (tv->value != NULL) && (tv->length == 0));
+ return ((get_mode_sort(tv->mode) == irms_reference) && (tv->value != NULL) && (tv->length == 0)
+ && (tv != tarval_P_void));
}
entity *tarval_to_entity(tarval *tv)
switch(get_mode_sort(mode))
{
case irms_reference:
+ case irms_control_flow:
+ case irms_memory:
case irms_auxiliary:
assert(0);
break;
return tarval_b_true;
case irms_float_number:
- fc_get_max(get_mode_size_bits(mode));
+ 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:
+ fc_get_max(15, 64, NULL);
+ break;
+ }
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
case irms_int_number:
case irms_character:
- sc_max_from_bits(get_mode_size_bits(mode), mode_is_signed(mode));
+ 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);
}
return tarval_bad;
switch(get_mode_sort(mode))
{
case irms_reference:
+ case irms_control_flow:
+ case irms_memory:
case irms_auxiliary:
assert(0);
break;
return tarval_b_false;
case irms_float_number:
- fc_get_min(get_mode_size_bits(mode));
+ 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:
+ fc_get_min(15, 64, NULL);
+ break;
+ }
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
case irms_int_number:
case irms_character:
- sc_min_from_bits(get_mode_size_bits(mode), mode_is_signed(mode));
+ 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);
}
return tarval_bad;
switch(get_mode_sort(mode))
{
+ case irms_control_flow:
+ case irms_memory:
case irms_auxiliary:
case irms_internal_boolean:
assert(0);
switch(get_mode_sort(mode))
{
+ case irms_control_flow:
+ case irms_memory:
case irms_auxiliary:
case irms_internal_boolean:
case irms_reference:
assert(mode);
if (get_mode_sort(mode) == irms_float_number) {
- fc_get_nan();
+ 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:
+ fc_get_qnan(15, 64, NULL);
+ break;
+ }
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
}
else {
assert(mode);
if (get_mode_sort(mode) == irms_float_number) {
- fc_get_inf();
+ 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:
+ fc_get_plusinf(15, 64, NULL);
+ break;
+ }
return get_tarval(fc_get_buffer(), fc_get_buffer_length(), mode);
}
else {
}
}
+/*
+ * test if null, 1 means 'yes'
+ */
+int tarval_is_null(tarval *a)
+{
+ ir_mode *m = get_tarval_mode(a);
+
+ return a == get_tarval_null(m);
+}
+
/*
* comparison
*/
if (a == tarval_bad || b == tarval_bad) assert(0 && "Comparison with tarval_bad");
if (a == tarval_undefined || b == tarval_undefined) return False;
if (a == b) return Eq;
- if (get_tarval_mode(a) != get_tarval_mode(b)) return Uo;
+ if (get_tarval_mode(a) != get_tarval_mode(b)) return 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:
+ case irms_reference:
return False;
case irms_float_number:
- return (fc_comp(a->value, b->value)==1)?(Gt):(Lt);
-
+ switch (fc_comp(a->value, b->value)) {
+ case -1: return Lt;
+ case 0: assert(0 && "different tarvals compare equal"); return Eq;
+ case 1: return Gt;
+ case 2: return Uo;
+ default: return False;
+ }
case irms_int_number:
case irms_character:
return (sc_comp(a->value, b->value)==1)?(Gt):(Lt);
case irms_internal_boolean:
return (a == tarval_b_true)?(Gt):(Lt);
-
- case irms_reference:
- return Uo;
}
return False;
}
*/
tarval *tarval_convert_to(tarval *src, ir_mode *m)
{
- ANNOUNCE();
- tarval tv;
+ char *buffer;
+ ANNOUNCE();
assert(src);
assert(m);
switch (get_mode_sort(src->mode))
{
+ case irms_control_flow:
+ case irms_memory:
case irms_auxiliary:
break;
+ /* cast float to something */
case irms_float_number:
+ switch (get_mode_sort(m)) {
+ case irms_float_number:
+ switch (get_mode_size_bits(m))
+ {
+ case 32:
+ fc_cast(src->value, 8, 23, NULL);
+ break;
+ case 64:
+ fc_cast(src->value, 11, 52, NULL);
+ break;
+ case 80:
+ fc_cast(src->value, 15, 64, NULL);
+ break;
+ default:
+ break;
+ }
+ return get_tarval(fc_get_buffer(), fc_get_buffer_length(), m);
+ break;
+
+ case irms_int_number:
+ switch (GET_FLOAT_TO_INT_MODE())
+ {
+ case TRUNCATE:
+ fc_int(src->value, NULL);
+ break;
+ case ROUND:
+ fc_rnd(src->value, NULL);
+ break;
+ default:
+ break;
+ }
+ /* XXX floating point unit can't produce a value in integer
+ * representation
+ * an intermediate representation is needed here first. */
+ /* return get_tarval(); */
+ return tarval_bad;
+ break;
+
+ default:
+ /* the rest can't be converted */
+ return tarval_bad;
+ }
break;
+ /* cast int to something */
case irms_int_number:
- switch (get_mode_sort(m))
- {
+ switch (get_mode_sort(m)) {
case irms_int_number:
case irms_character:
- tv.mode = m;
- tv.length = src->length;
- tv.value = src->value;
- if (overflows(&tv))
- {
- return tarval_bad;
- }
- return INSERT_TARVAL(&tv);
+ return get_tarval_overflow(src->value, src->length, m);
case irms_internal_boolean:
/* XXX C semantics */
if (src == get_mode_null(src->mode)) return tarval_b_false;
else return tarval_b_true;
+ case irms_float_number:
+ /* XXX floating point unit does not understand internal integer
+ * representation, convert to string first, then create float from
+ * string */
+ buffer = 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",
+ sc_print(src->value, get_mode_size_bits(src->mode), SC_DEC));
+ switch (get_mode_size_bits(m))
+ {
+ 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:
+ fc_val_from_str(buffer, 0, 15, 64, NULL);
+ break;
+ }
+ return get_tarval(fc_get_buffer(), fc_get_buffer_length(), m);
+
default:
break;
}
*/
tarval *tarval_neg(tarval *a)
{
+ char *buffer;
+
ANNOUNCE();
assert(a);
assert(mode_is_num(a->mode)); /* negation only for numerical values */
switch (get_mode_sort(a->mode))
{
case irms_int_number:
- sc_neg(a->value);
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ buffer = alloca(sc_get_buffer_length());
+ sc_neg(a->value, buffer);
+ return get_tarval_overflow(buffer, a->length, a->mode);
case irms_float_number:
- fc_neg(a->value);
- return get_tarval(fc_get_buffer(), fc_get_buffer_length(), a->mode);
+ fc_neg(a->value, NULL);
+ return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
return tarval_bad;
*/
tarval *tarval_add(tarval *a, tarval *b)
{
+ char *buffer;
+
ANNOUNCE();
assert(a);
assert(b);
case irms_character:
case irms_int_number:
/* modes of a,b are equal, so result has mode of a as this might be the character */
- sc_add(a->value, b->value);
- /* FIXME: Check for overflow */
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ buffer = 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:
- /* FIXME: Overflow/Underflow/transition to inf when mode < 80bit */
- fc_add(a->value, b->value);
- return get_tarval(fc_get_buffer(), fc_get_buffer_length(), a->mode);
+ fc_add(a->value, b->value, NULL);
+ return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
return tarval_bad;
*/
tarval *tarval_sub(tarval *a, tarval *b)
{
+ char *buffer;
+
ANNOUNCE();
assert(a);
assert(b);
case irms_character:
case irms_int_number:
/* modes of a,b are equal, so result has mode of a as this might be the character */
- sc_sub(a->value, b->value);
- /* FIXME: check for overflow */
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ buffer = 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:
- /* FIXME: Overflow/Underflow/transition to inf when mode < 80bit */
- fc_add(a->value, b->value);
- return get_tarval(fc_get_buffer(), fc_get_buffer_length(), a->mode);
+ fc_sub(a->value, b->value, NULL);
+ return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
return tarval_bad;
*/
tarval *tarval_mul(tarval *a, tarval *b)
{
+ char *buffer;
+
ANNOUNCE();
assert(a);
assert(b);
{
case irms_int_number:
/* modes of a,b are equal */
- sc_mul(a->value, b->value);
- /* FIXME: check for overflow */
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ buffer = 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:
- /* FIXME: Overflow/Underflow/transition to inf when mode < 80bit */
- fc_add(a->value, b->value);
- return get_tarval(fc_get_buffer(), fc_get_buffer_length(), a->mode);
+ fc_mul(a->value, b->value, NULL);
+ return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
default:
return tarval_bad;
assert(b);
assert((a->mode == b->mode) && mode_is_float(a->mode));
- /* FIXME: Overflow/Underflow/transition to inf when mode < 80bit */
- fc_div(a->value, b->value);
- return get_tarval(fc_get_buffer(), fc_get_buffer_length(), a->mode);
+ fc_div(a->value, b->value, NULL);
+ return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
}
/*
* integer division
+ * overflow is impossible, but look out for division by zero
*/
tarval *tarval_div(tarval *a, tarval *b)
{
assert(b);
assert((a->mode == b->mode) && mode_is_int(a->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);
+ 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(b);
assert((a->mode == b->mode) && mode_is_int(a->mode));
+ /* x/0 error */
+ if (b == get_mode_null(b->mode)) return tarval_bad;
/* modes of a,b are equal */
- sc_mod(a->value, b->value);
+ sc_mod(a->value, b->value, NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
*/
tarval *tarval_abs(tarval *a)
{
+ char *buffer;
+
ANNOUNCE();
assert(a);
assert(mode_is_num(a->mode));
case irms_int_number:
if (sc_comp(a->value, get_mode_null(a->mode)->value) == -1)
{
- sc_neg(a->value);
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ buffer = 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:
- break;
+ if (fc_comp(a->value, get_mode_null(a->mode)->value) == -1)
+ {
+ fc_neg(a->value, NULL);
+ return get_tarval_overflow(fc_get_buffer(), fc_get_buffer_length(), a->mode);
+ }
+ return a;
default:
return tarval_bad;
ANNOUNCE();
assert(a);
assert(b);
- assert((a->mode == b->mode) && mode_is_int(a->mode));
+ assert(a->mode == b->mode);
- sc_and(a->value, b->value);
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ switch(get_mode_sort(a->mode))
+ {
+ case irms_internal_boolean:
+ return (a == tarval_b_false) ? a : b;
+
+ 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;
+ }
}
/*
ANNOUNCE();
assert(a);
assert(b);
- assert((a->mode == b->mode) && mode_is_int(a->mode));
+ assert(a->mode == b->mode);
- sc_or(a->value, b->value);
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ switch (get_mode_sort(a->mode))
+ {
+ case irms_internal_boolean:
+ return (a == tarval_b_true) ? a : b;
+
+ 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;;
+ }
}
/*
ANNOUNCE();
assert(a);
assert(b);
- assert((a->mode == b->mode) && mode_is_int(a->mode));
+ assert((a->mode == b->mode));
- sc_or(a->value, b->value);
- return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
+ switch (get_mode_sort(a->mode))
+ {
+ case irms_internal_boolean:
+ return (a == b)? tarval_b_false : tarval_b_true;
+
+ 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;;
+ }
}
/*
assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- sc_shl(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode));
+ sc_shl(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode), NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- sc_shr(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode));
+ sc_shr(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode), NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- sc_shrs(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode));
+ sc_shrs(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode), NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
assert(b);
assert(mode_is_int(a->mode) && mode_is_int(b->mode));
- sc_rot(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode));
+ sc_rot(a->value, b->value, get_mode_size_bits(a->mode), mode_is_signed(a->mode), NULL);
return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
}
+
/*
* Output of tarvals
*/
-int tarval_print(XP_PAR1, const xprintf_info *info ATTRIBUTE((unused)), XP_PARN)
+int tarval_snprintf(char *buf, size_t len, tarval *tv)
{
static const tarval_mode_info default_info = { TVO_NATIVE, NULL, NULL };
- tarval *tv;
const char *str;
- char buf[100];
+ char tv_buf[100];
const tarval_mode_info *mode_info;
const char *prefix, *suffix;
ANNOUNCE();
- tv = XP_GETARG(tarval *, 0);
mode_info = tv->mode->tv_priv;
if (! mode_info)
mode_info = &default_info;
str = sc_print(tv->value, get_mode_size_bits(tv->mode), SC_HEX);
break;
}
- return XPF3R("%s%s%s", prefix, str, suffix);
+ return snprintf(buf, len, "%s%s%s", prefix, str, suffix);
case irms_float_number:
- return XPF3R("%s%s%s", prefix, fc_print_dec(tv->value, buf, sizeof(buf)), suffix);
+ 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);
+
+ case TVO_HEXFLOAT:
+ return snprintf(buf, len, "%s%s%s", prefix, fc_print(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);
+ }
+ break;
case irms_reference:
+ if (tv==tarval_P_void) return snprintf(buf, len, "NULL");
if (tv->value != NULL)
- if (tarval_is_entity(tv))
+ if (tarval_is_entity(tv)) {
if (get_entity_peculiarity((entity *)tv->value) == existent)
- return XPF1R("&(%I)", get_entity_ld_ident((entity *)tv->value));
- else
- return XPSR("NULL");
- else
- return XPMR((char*)tv->value, tv->length);
+ return snprintf(buf, len, "%s%s%s", prefix, get_entity_ld_name((entity *)tv->value), suffix);
+ else {
+ if (mode_info->mode_output == TVO_NATIVE)
+ return snprintf(buf, len, "NULL");
+ else
+ return snprintf(buf, len, "0");
+ }
+ }
+ else {
+ if (size > tv->length) {
+ memcpy(buf, tv->value, tv->length);
+ buf[tv->length] = '\0';
+ }
+ else {
+ /* truncated */
+ memcpy(buf, tv->value, size-1);
+ buf[size-1] = '\0';
+ }
+ return tv->length;
+ }
else
- return XPSR("void");
+ return snprintf(buf, len, "void");
case irms_internal_boolean:
switch (mode_info->mode_output) {
case TVO_OCTAL:
case TVO_HEX:
case TVO_BINARY:
- return XPF3R("%s%c%s", prefix, (tv == tarval_b_true) ? '1' : '0', suffix);
+ return snprintf(buf, len, "%s%c%s", prefix, (tv == tarval_b_true) ? '1' : '0', suffix);
case TVO_NATIVE:
default:
- return XPF3R("%s%s%s", prefix, (tv == tarval_b_true) ? "true" : "false", suffix);
+ 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:
- return XPSR("<BAD>");
+ return snprintf(buf, len, "<BAD>");
}
return 0;
}
-int tarval_xprintf(printf_func print_func, void * out , tarval *tv)
-{
- const char *str;
- char buf[100];
-
- switch (get_mode_sort(tv->mode))
- {
- case irms_int_number:
- case irms_character:
- str = sc_print(tv->value, get_mode_size_bits(tv->mode), SC_HEX);
-
- return print_func(out,"0x%s", str);
-
- case irms_float_number:
- return print_func(out,"%s", fc_print_dec(tv->value, buf, sizeof(buf)));
-
- case irms_reference:
- if (tv->value != NULL)
- if (tarval_is_entity(tv))
- if (get_entity_peculiarity((entity *)tv->value) == existent)
- return print_func(out,"&(%s)", id_to_str(get_entity_ld_ident((entity *)tv->value)));
- else
- return print_func(out,"NULL",0);
- else
- return print_func(out,(char*)tv->value, tv->length);
- else
- return print_func(out,"void",0);
-
- case irms_internal_boolean:
- if (tv == tarval_b_true) return print_func(out,"true",0);
- else return print_func(out,"false",0);
-
- case irms_auxiliary:
- return print_func(out,"<BAD>",0);
- }
- return 0;
+/**
+ * Output of tarvals to stdio.
+ */
+int tarval_printf(tarval *tv) {
+ char buf[1024];
+ int res;
+
+ res = tarval_snprintf(buf, sizeof(buf), tv);
+ assert(res < sizeof(buf) && "buffer to small for tarval_snprintf");
+ printf(buf);
+ return res;
}
+
char *tarval_bitpattern(tarval *tv)
{
return NULL;
return 0;
}
+/*
+ * Returns the output options of one mode.
+ *
+ * This functions returns the modinfo of a given mode.
+ */
+const tarval_mode_info *tarval_get_mode_output_option(ir_mode *mode)
+{
+ assert(mode);
+
+ return mode->tv_priv;
+}
+
+
/* Identifying some tarvals ??? */
/* Implemented in old tv.c as such:
* return 0 for additive neutral,
* -1 for bitwise-and neutral
* 2 else
*
- * Implemented for completeness */
+ * Implemented for compatibility */
long tarval_classify(tarval *tv)
{
ANNOUNCE();
return 2;
}
-/*
- * Initialization of the tarval module: called before init_mode()
- */
-void init_tarval_1(void)
-{
- ANNOUNCE();
- /* initialize the sets holding the tarvals with a comparison function and
- * an initial size, which is the expected number of constants */
- tarvals = new_set(memcmp, TUNE_NCONSTANTS);
- values = new_set(memcmp, TUNE_NCONSTANTS);
- /* init with default precision */
- init_strcalc(0);
- /* init_fltcalc(0); not yet*/
-}
-
/**
* default mode_info for output as HEX
*/
NULL,
};
+/**
+ * default mode_info for output as reference
+ */
+static const tarval_mode_info reference_output = {
+ TVO_NATIVE,
+ "&(",
+ ")",
+};
+
+
/*
- * Initialization of the tarval module: called after init_mode()
+ * Initialization of the tarval module: called before init_mode()
*/
-void init_tarval_2(void)
+void init_tarval_1(void)
{
ANNOUNCE();
+ /* initialize the sets holding the tarvals with a comparison function and
+ * an initial size, which is the expected number of constants */
+ tarvals = new_set(memcmp, TUNE_NCONSTANTS);
+ values = new_set(memcmp, TUNE_NCONSTANTS);
+ /* 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);
tarval_bad = (tarval*)malloc(sizeof(tarval));
- tarval_bad->mode = NULL;
-
tarval_undefined = (tarval*)malloc(sizeof(tarval));
- tarval_undefined->mode = NULL;
-
tarval_b_true = (tarval*)malloc(sizeof(tarval));
- tarval_b_true->mode = mode_b;
-
tarval_b_false = (tarval*)malloc(sizeof(tarval));
- tarval_b_false->mode = mode_b;
-
tarval_P_void = (tarval*)malloc(sizeof(tarval));
- tarval_P_void->mode = mode_P;
+}
+
+/*
+ * Initialization of the tarval module: called after init_mode()
+ */
+void init_tarval_2(void)
+{
+ ANNOUNCE();
+
+ tarval_bad->mode = mode_BAD;
+ tarval_undefined->mode = mode_ANY;
+ tarval_b_true->mode = mode_b;
+ tarval_b_false->mode = mode_b;
+ tarval_P_void->mode = mode_P;
/*
* assign output modes that are compatible with the
tarval_set_mode_output_option(mode_Bu, &hex_output);
tarval_set_mode_output_option(mode_Hs, &hex_output);
tarval_set_mode_output_option(mode_Hu, &hex_output);
- tarval_set_mode_output_option(mode_Hs, &hex_output);
- tarval_set_mode_output_option(mode_Hu, &hex_output);
tarval_set_mode_output_option(mode_Is, &hex_output);
tarval_set_mode_output_option(mode_Iu, &hex_output);
tarval_set_mode_output_option(mode_Ls, &hex_output);
tarval_set_mode_output_option(mode_Lu, &hex_output);
+ tarval_set_mode_output_option(mode_P, &reference_output);
}
/****************************************************************************
projects / libfirm / blobdiff