X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Ftv%2Ftv.c;h=e0b51c18b735148b618076a36f1d4be70cb81014;hb=45ecc187cee7107c83c1f9618a1e1e586df73644;hp=1afb4a5a8303a84892e08fef6560b8f67f711750;hpb=c79815c3a6d43fe37bfaac717a12f8f5034cd04f;p=libfirm diff --git a/ir/tv/tv.c b/ir/tv/tv.c index 1afb4a5a8..e0b51c18b 100644 --- a/ir/tv/tv.c +++ b/ir/tv/tv.c @@ -94,16 +94,29 @@ enum float_to_int_mode { #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 */ +/** A set containing all existing tarvals. */ +static struct set *tarvals = NULL; +/** A set containing all existing values. */ +static struct set *values = NULL; + +/** The integer overflow mode. */ static tarval_int_overflow_mode_t int_overflow_mode = TV_OVERFLOW_WRAP; /** 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 ****************************************************************************/ @@ -114,10 +127,9 @@ static void _fail_verify(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); } #ifdef __GNUC__ INLINE static void tarval_verify(tarval *tv) __attribute__ ((unused)); @@ -134,8 +146,6 @@ INLINE static void tarval_verify(tarval *tv) if (!FIND_TARVAL(tv)) fail_verify(tv); if (tv->length > 0 && !FIND_VALUE(tv->value, tv->length)) fail_verify(tv); - - return; } #endif /* NDEBUG */ @@ -165,17 +175,17 @@ static int cmp_tv(const void *p1, const void *p2, size_t 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; @@ -279,12 +289,31 @@ static tarval *get_tarval_overflow(const void *value, int length, ir_mode *mode) /* * public variables declared in tv.h */ -static tarval reserved_tv[4]; +static tarval reserved_tv[6]; -tarval *tarval_bad = &reserved_tv[0]; -tarval *tarval_undefined = &reserved_tv[1]; -tarval *tarval_b_false = &reserved_tv[2]; -tarval *tarval_b_true = &reserved_tv[3]; +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]; + +/** + * 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: return &extended_desc; + case 128: return &quad_desc; + default: + panic("Unsupported mode in get_descriptor()"); + return NULL; + } +} /* * public functions declared in tv.h @@ -295,6 +324,8 @@ tarval *tarval_b_true = &reserved_tv[3]; */ tarval *new_tarval_from_str(const char *str, size_t len, ir_mode *mode) { + const ieee_descriptor_t *desc; + assert(str); assert(len); assert(mode); @@ -303,32 +334,21 @@ tarval *new_tarval_from_str(const char *str, size_t len, ir_mode *mode) case irms_control_flow: case irms_memory: case irms_auxiliary: - assert(0); - break; + 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")) return tarval_b_true; - else if (strcasecmp(str, "false")) return tarval_b_true; + 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: - 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: @@ -337,9 +357,7 @@ tarval *new_tarval_from_str(const char *str, size_t len, ir_mode *mode) sc_val_from_str(str, len, NULL, mode); return get_tarval(sc_get_buffer(), sc_get_buffer_length(), mode); } - - assert(0); /* can't be reached, can it? */ - return NULL; + panic("Unsupported tarval creation with mode %F", mode); } /* @@ -392,22 +410,11 @@ long get_tarval_long(tarval* tv) { } tarval *new_tarval_from_double(long double d, ir_mode *mode) { - assert(mode && (get_mode_sort(mode) == irms_float_number)); + const ieee_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); } @@ -460,39 +467,35 @@ tarval *(get_tarval_b_true)(void) { return _get_tarval_b_true(); } +tarval *(get_tarval_reachable)(void) { + return _get_tarval_reachable(); +} + +tarval *(get_tarval_unreachable)(void) { + return _get_tarval_unreachable(); +} + tarval *get_tarval_max(ir_mode *mode) { - assert(mode); + const ieee_descriptor_t *desc; + assert(mode); if (get_mode_n_vector_elems(mode) > 1) { /* vector arithmetic not implemented yet */ return tarval_bad; } - switch(get_mode_sort(mode)) { + switch (get_mode_sort(mode)) { case irms_control_flow: case irms_memory: case irms_auxiliary: - assert(0); - break; + panic("mode %F does not support maximum value", 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: @@ -504,38 +507,26 @@ tarval *get_tarval_max(ir_mode *mode) { } tarval *get_tarval_min(ir_mode *mode) { - assert(mode); + const ieee_descriptor_t *desc; + assert(mode); if (get_mode_n_vector_elems(mode) > 1) { /* vector arithmetic not implemented yet */ return tarval_bad; } - switch(get_mode_sort(mode)) { + switch (get_mode_sort(mode)) { case irms_control_flow: case irms_memory: case irms_auxiliary: - assert(0); - break; + panic("mode %F does not support minimum value", 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: @@ -557,12 +548,11 @@ tarval *get_tarval_null(ir_mode *mode) { return tarval_bad; } - switch(get_mode_sort(mode)) { + switch (get_mode_sort(mode)) { case irms_control_flow: case irms_memory: case irms_auxiliary: - assert(0); - break; + panic("mode %F does not support null value", mode); case irms_float_number: return new_tarval_from_double(0.0, mode); @@ -580,18 +570,14 @@ tarval *get_tarval_null(ir_mode *mode) { 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; - } + if (get_mode_n_vector_elems(mode) > 1) + panic("vector arithmetic not implemented yet"); - switch(get_mode_sort(mode)) { + switch (get_mode_sort(mode)) { case irms_control_flow: case irms_memory: case irms_auxiliary: - assert(0); - break; + panic("mode %F does not support one value", mode); case irms_internal_boolean: return tarval_b_true; @@ -609,18 +595,14 @@ tarval *get_tarval_one(ir_mode *mode) { 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; - } + if (get_mode_n_vector_elems(mode) > 1) + panic("vector arithmetic not implemented yet"); - switch(get_mode_sort(mode)) { + switch (get_mode_sort(mode)) { case irms_control_flow: case irms_memory: case irms_auxiliary: - assert(0); - return tarval_bad; + panic("mode %F does not support all-one value", mode); case irms_int_number: case irms_internal_boolean: @@ -634,21 +616,26 @@ tarval *get_tarval_all_one(ir_mode *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]); +} + 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; - } + if (get_mode_n_vector_elems(mode) > 1) + panic("vector arithmetic not implemented yet"); - switch(get_mode_sort(mode)) { + switch (get_mode_sort(mode)) { case irms_control_flow: case irms_memory: case irms_auxiliary: case irms_internal_boolean: - assert(0); - break; + panic("mode %F does not support minus one value", mode); case irms_reference: return tarval_bad; @@ -663,97 +650,49 @@ tarval *get_tarval_minus_one(ir_mode *mode) { } tarval *get_tarval_nan(ir_mode *mode) { - assert(mode); + const ieee_descriptor_t *desc; - if (get_mode_n_vector_elems(mode) > 1) { - /* vector arithmetic not implemented yet */ - return tarval_bad; - } + assert(mode); + if (get_mode_n_vector_elems(mode) > 1) + panic("vector arithmetic not implemented yet"); 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; - } + if (get_mode_n_vector_elems(mode) > 1) + panic("vector arithmetic not implemented yet"); 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 ieee_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; - } + if (get_mode_n_vector_elems(mode) > 1) + panic("vector arithmetic not implemented yet"); 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 ieee_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 ======================================== + * Arithmetic operations on tarvals ======================================== */ /* @@ -762,11 +701,8 @@ tarval *get_tarval_minus_inf(ir_mode *mode) { 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; - } + 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: @@ -778,8 +714,7 @@ int tarval_is_negative(tarval *a) { return fc_is_negative(a->value); default: - assert(0 && "not implemented"); - return 0; + panic("mode %F does not support negation value", a->mode); } } @@ -824,7 +759,7 @@ pn_Cmp tarval_cmp(tarval *a, tarval *b) { assert(b); if (a == tarval_bad || b == tarval_bad) { - assert(0 && "Comparison with tarval_bad"); + panic("Comparison with tarval_bad"); return pn_Cmp_False; } @@ -881,13 +816,15 @@ pn_Cmp tarval_cmp(tarval *a, tarval *b) { * convert to other mode */ tarval *tarval_convert_to(tarval *src, ir_mode *dst_mode) { - char *buffer; - fp_value *res; + char *buffer; + fp_value *res; + const ieee_descriptor_t *desc; assert(src); assert(dst_mode); - if (src->mode == dst_mode) return src; + if (src->mode == dst_mode) + return src; if (get_mode_n_vector_elems(src->mode) > 1) { /* vector arithmetic not implemented yet */ @@ -904,20 +841,8 @@ tarval *tarval_convert_to(tarval *src, ir_mode *dst_mode) { 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(src->value, desc, NULL); return get_tarval(fc_get_buffer(), fc_get_buffer_length(), dst_mode); case irms_int_number: @@ -969,20 +894,8 @@ tarval *tarval_convert_to(tarval *src, ir_mode *dst_mode) { 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, 0, desc, NULL); return get_tarval(fc_get_buffer(), fc_get_buffer_length(), dst_mode); default: @@ -1082,14 +995,22 @@ tarval *tarval_add(tarval *a, tarval *b) { 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()); @@ -1111,18 +1032,27 @@ tarval *tarval_add(tarval *a, tarval *b) { /* * subtraction */ -tarval *tarval_sub(tarval *a, tarval *b) { - char *buffer; +tarval *tarval_sub(tarval *a, tarval *b, ir_mode *dst_mode) { + 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 (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); + 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()); @@ -1314,7 +1244,7 @@ tarval *tarval_and(tarval *a, tarval *b) { /* 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; @@ -1331,7 +1261,7 @@ tarval *tarval_and(tarval *a, tarval *b) { /* * bitwise or */ -tarval *tarval_or (tarval *a, tarval *b) { +tarval *tarval_or(tarval *a, tarval *b) { assert(a); assert(b); assert(a->mode == b->mode); @@ -1568,6 +1498,10 @@ int tarval_snprintf(char *buf, size_t len, tarval *tv) { return snprintf(buf, len, ""); if (tv == tarval_undefined) return snprintf(buf, len, ""); + if (tv == tarval_unreachable) + return snprintf(buf, len, ""); + if (tv == tarval_reachable) + return snprintf(buf, len, ""); return snprintf(buf, len, ""); } @@ -1591,7 +1525,7 @@ char *get_tarval_bitpattern(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++) { @@ -1691,23 +1625,8 @@ int tarval_ieee754_get_exponent(tarval *tv) { * 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; - } - return fc_can_lossless_conv_to(tv->value, exp_size, mant_size); + 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. */ @@ -1720,6 +1639,17 @@ unsigned tarval_ieee754_get_exact(void) { 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(tarval *tv) { if (! mode_is_float(tv->mode)) @@ -1780,38 +1710,48 @@ static const tarval_mode_info hex_output = { /* * Initialization of the tarval module: called before init_mode() */ -void init_tarval_1(long null_value) { +void init_tarval_1(long null_value, int support_quad_precision) { + /* 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!"); + _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) { - tarval_bad->kind = k_tarval; - tarval_bad->mode = mode_BAD; - tarval_bad->value = INT_TO_PTR(resid_tarval_bad); + 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_undefined->kind = k_tarval; - tarval_undefined->mode = mode_ANY; - tarval_undefined->value = INT_TO_PTR(resid_tarval_undefined); + tarval_b_false->kind = k_tarval; + tarval_b_false->mode = mode_b; + tarval_b_false->value = INT_TO_PTR(resid_tarval_b_false); - tarval_b_true->kind = k_tarval; - tarval_b_true->mode = mode_b; - tarval_b_true->value = INT_TO_PTR(resid_tarval_b_true); + tarval_unreachable->kind = k_tarval; + tarval_unreachable->mode = mode_X; + tarval_unreachable->value = INT_TO_PTR(resid_tarval_unreachable); - tarval_b_false->kind = k_tarval; - tarval_b_false->mode = mode_b; - tarval_b_false->value = INT_TO_PTR(resid_tarval_b_false); + 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 @@ -1836,6 +1776,10 @@ void finish_tarval(void) { del_set(values); values = NULL; } +int (is_tarval)(const void *thing) { + return _is_tarval(thing); +} + /**************************************************************************** * end of tv.c ****************************************************************************/