X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firmode.c;h=2240d141a07e2e6177393dbe057b11dcb37ff007;hb=c3c48d7bd83f042cc2951754377de928d66fe51e;hp=76af6b9554fca849eba7e2ce627ffb04b9c08227;hpb=b090dd3c70bf2cc57ddf2f4607d7aeb76d82606e;p=libfirm diff --git a/ir/ir/irmode.c b/ir/ir/irmode.c index 76af6b955..2240d141a 100644 --- a/ir/ir/irmode.c +++ b/ir/ir/irmode.c @@ -1,25 +1,32 @@ -/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe -** All rights reserved. -** -** Authors: Martin Trapp, Christian Schaefer -** -*/ +/* + * Project: libFIRM + * File name: ir/ir/irmode.c + * Purpose: Data modes of operations. + * Author: Martin Trapp, Christian Schaefer + * Modified by: Goetz Lindenmaier, Mathias Heil + * Created: + * CVS-ID: $Id$ + * Copyright: (c) 1998-2003 Universität Karlsruhe + * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE. + */ -/* $Id$ */ #ifdef HAVE_CONFIG_H # include #endif -# include "irmode_t.h" -# include "ident.h" -# include +# include # include # include +# include + +# include "irmode_t.h" +# include "ident.h" # include "tv.h" -# include "array.h" +# include "obst.h" #if 0 +static long long count = 0; # define ANNOUNCE() printf(__FILE__": call no. %lld (%s)\n", count++, __FUNCTION__) #else # define ANNOUNCE() ((void)0) @@ -29,70 +36,143 @@ * local values * * */ -static long long count = 0; -/* dynamic array to hold all modes */ -static ir_mode * modes; -/* dynamic arrays to hold special modes' values */ -static tarval** modes_min; -static tarval** modes_max; -static tarval** modes_null; -static tarval** modes_one; +/** dynamic array to hold all modes */ +static struct obstack modes; -/* number of defined modes */ +/** number of defined modes */ static int num_modes; /* * * * local functions * * */ -/* compare modes that don't need to have their code field - * correctly set */ -static int modes_are_equal(ir_mode *m, ir_mode *n) +/** + * Compare modes that don't need to have their code field + * correctly set + * + * TODO: Add other fields + **/ +INLINE static int modes_are_equal(const ir_mode *m, const ir_mode *n) { if (m == n) return 1; - if ( (m->sort == n->sort) && (m->size == n->size) && - (m->align == n->align) && (m->sign == n->sign) && - (m->name == n->name) ) + if (m->sort == n->sort && + m->arithmetic == n->arithmetic && + m->size == n->size && + m->align == n->align && + m->sign == n->sign && + m->modulo_shift == n->modulo_shift && + m->vector_elem == n->vector_elem) return 1; return 0; } -/* searches the modes array for the given mode and returns +/* + * calculates the next obstack address + */ +static void *next_obstack_adr(struct obstack *o, void *p, size_t s) +{ + PTR_INT_TYPE adr = __PTR_TO_INT((char *)p); + int mask = obstack_alignment_mask(o); + + adr += s + mask; + + return __INT_TO_PTR(adr & ~mask); +} + +/** + * searches the modes obstack for the given mode and returns * a pointer on an equal mode already in the array, NULL if - * none found */ -static ir_mode *find_mode(ir_mode *m) + * none found + */ +static ir_mode *find_mode(const ir_mode *m) { - int i; + ir_mode *n, *nn; + struct _obstack_chunk *p; + + p = modes.chunk; + n = (ir_mode *)p->contents; + nn = next_obstack_adr(&modes, n, sizeof(*n)); + for (; (char *)nn <= modes.next_free;) { + assert(is_mode(n)); + if (modes_are_equal(n, m)) + return n; + + n = nn; + nn = next_obstack_adr(&modes, n, sizeof(*n)); + } - for (i = 0; i < num_modes; i++) - { - if (modes_are_equal(m, &modes[i])) return &modes[i]; + for (p = p->prev; p; p = p->prev) { + n = (ir_mode *)p->contents; + nn = next_obstack_adr(&modes, n, sizeof(*n)); + for (; (char *)nn < p->limit;) { + assert(is_mode(n)); + if (modes_are_equal(n, m)) + return n; + + n = nn; + nn = next_obstack_adr(&modes, n, sizeof(*n)); + } } return NULL; } -/* sets special values of modes */ +/** + * sets special values of modes + */ static void set_mode_values(ir_mode* mode) { - modes_min[get_mode_modecode(mode)] = get_tarval_min(mode); - modes_max[get_mode_modecode(mode)] = get_tarval_max(mode); - modes_null[get_mode_modecode(mode)] = get_tarval_null(mode); - modes_one[get_mode_modecode(mode)] = get_tarval_one(mode); + switch (get_mode_sort(mode)) + { + case irms_character: + case irms_int_number: + case irms_float_number: + mode->min = get_tarval_min(mode); + mode->max = get_tarval_max(mode); + mode->null = get_tarval_null(mode); + mode->one = get_tarval_one(mode); + break; + + case irms_internal_boolean: + mode->min = tarval_b_false; + mode->max = tarval_b_true; + mode->null = tarval_b_false; + mode->one = tarval_b_true; + break; + + case irms_reference: + mode->min = tarval_bad; + mode->max = tarval_bad; + mode->null = (get_mode_modecode(mode) == irm_P) ? tarval_P_void : tarval_bad; + mode->one = tarval_bad; + break; + + case irms_auxiliary: + case irms_memory: + case irms_control_flow: + mode->min = tarval_bad; + mode->max = tarval_bad; + mode->null = tarval_bad; + mode->one = tarval_bad; + break; + } } + /* * * * globals defined in irmode.h * * */ -/** Predefined modes **/ +/* --- Predefined modes --- */ /* FIRM internal modes: */ ir_mode *mode_T; ir_mode *mode_X; ir_mode *mode_M; ir_mode *mode_BB; +ir_mode *mode_ANY; +ir_mode *mode_BAD; /* predefined numerical modes: */ ir_mode *mode_F; /* float */ @@ -113,145 +193,266 @@ ir_mode *mode_U; ir_mode *mode_b; ir_mode *mode_P; +/* machine specific modes */ +ir_mode *mode_P_mach; /* machine specific pointer mode */ + /* * * * functions defined in irmode.h * * */ /* JNI access functions */ -INLINE ir_mode *get_modeT() { ANNOUNCE(); return mode_T; } -INLINE ir_mode *get_modeF() { ANNOUNCE(); return mode_F; } -INLINE ir_mode *get_modeD() { ANNOUNCE(); return mode_D; } -INLINE ir_mode *get_modeE() { ANNOUNCE(); return mode_E; } -INLINE ir_mode *get_modeBs() { ANNOUNCE(); return mode_Bs; } -INLINE ir_mode *get_modeBu() { ANNOUNCE(); return mode_Bu; } -INLINE ir_mode *get_modeHs() { ANNOUNCE(); return mode_Hs; } -INLINE ir_mode *get_modeHu() { ANNOUNCE(); return mode_Hu; } -INLINE ir_mode *get_modeIs() { ANNOUNCE(); return mode_Is; } -INLINE ir_mode *get_modeIu() { ANNOUNCE(); return mode_Iu; } -INLINE ir_mode *get_modeLs() { ANNOUNCE(); return mode_Ls; } -INLINE ir_mode *get_modeLu() { ANNOUNCE(); return mode_Lu; } -INLINE ir_mode *get_modeC() { ANNOUNCE(); return mode_C; } -INLINE ir_mode *get_modeU() { ANNOUNCE(); return mode_U; } -INLINE ir_mode *get_modeb() { ANNOUNCE(); return mode_b; } -INLINE ir_mode *get_modeP() { ANNOUNCE(); return mode_P; } -INLINE ir_mode *get_modeX() { ANNOUNCE(); return mode_X; } -INLINE ir_mode *get_modeM() { ANNOUNCE(); return mode_M; } -INLINE ir_mode *get_modeBB() { ANNOUNCE(); return mode_BB; } - -/* ** Constructor ** */ -ir_mode * -register_mode(ir_mode* new_mode) +INLINE ir_mode *get_modeT(void) { ANNOUNCE(); return mode_T; } +INLINE ir_mode *get_modeF(void) { ANNOUNCE(); return mode_F; } +INLINE ir_mode *get_modeD(void) { ANNOUNCE(); return mode_D; } +INLINE ir_mode *get_modeE(void) { ANNOUNCE(); return mode_E; } +INLINE ir_mode *get_modeBs(void) { ANNOUNCE(); return mode_Bs; } +INLINE ir_mode *get_modeBu(void) { ANNOUNCE(); return mode_Bu; } +INLINE ir_mode *get_modeHs(void) { ANNOUNCE(); return mode_Hs; } +INLINE ir_mode *get_modeHu(void) { ANNOUNCE(); return mode_Hu; } +INLINE ir_mode *get_modeIs(void) { ANNOUNCE(); return mode_Is; } +INLINE ir_mode *get_modeIu(void) { ANNOUNCE(); return mode_Iu; } +INLINE ir_mode *get_modeLs(void) { ANNOUNCE(); return mode_Ls; } +INLINE ir_mode *get_modeLu(void) { ANNOUNCE(); return mode_Lu; } +INLINE ir_mode *get_modeC(void) { ANNOUNCE(); return mode_C; } +INLINE ir_mode *get_modeU(void) { ANNOUNCE(); return mode_U; } +INLINE ir_mode *get_modeb(void) { ANNOUNCE(); return mode_b; } +INLINE ir_mode *get_modeP(void) { ANNOUNCE(); return mode_P; } +INLINE ir_mode *get_modeX(void) { ANNOUNCE(); return mode_X; } +INLINE ir_mode *get_modeM(void) { ANNOUNCE(); return mode_M; } +INLINE ir_mode *get_modeBB(void) { ANNOUNCE(); return mode_BB; } +INLINE ir_mode *get_modeANY(void) { ANNOUNCE(); return mode_ANY; } +INLINE ir_mode *get_modeBAD(void) { ANNOUNCE(); return mode_BAD; } + + +ir_mode *(get_modeP_mach)(void) { + ANNOUNCE(); + return __get_modeP_mach(); +} + +void (set_modeP_mach)(ir_mode *p) { + ANNOUNCE(); + __set_modeP_mach(p); +} + +/** + * Registers a new mode. + * + * @param new_mode The new mode template. + */ +static ir_mode *register_mode(const ir_mode* new_mode) { - ir_mode *mode; + ir_mode *mode = NULL; ANNOUNCE(); assert(new_mode); - /* first check if there already is a matching mode */ - mode = find_mode(new_mode); - if (mode) return mode; + /* copy mode struct to modes array */ + mode = (ir_mode*)obstack_copy(&modes, new_mode, sizeof(ir_mode)); + + mode->kind = k_ir_mode; + if (num_modes >= irm_max) mode->code = num_modes; + num_modes++; + + set_mode_values(mode); + + return mode; +} + +/* + * Creates a new mode. + */ +ir_mode *new_ir_mode(const char *name, mode_sort sort, int bit_size, int bit_align, int sign, + mode_arithmetic arithmetic, unsigned int modulo_shift ) +{ + ir_mode mode_tmpl; + ir_mode *mode; + + mode_tmpl.name = new_id_from_str(name); + mode_tmpl.sort = sort; + mode_tmpl.size = bit_size; + mode_tmpl.align = bit_align; + mode_tmpl.sign = sign ? 1 : 0; + mode_tmpl.modulo_shift = (mode_tmpl.sort == irms_int_number) ? modulo_shift : 0; + mode_tmpl.vector_elem = 1; + mode_tmpl.arithmetic = arithmetic; + mode_tmpl.link = NULL; + mode_tmpl.tv_priv = NULL; + + mode = find_mode(&mode_tmpl); + if (mode) + { + return mode; + } /* sanity checks */ - switch (new_mode->sort) + switch (sort) { - case auxiliary: - case internal_boolean: + case irms_auxiliary: + case irms_control_flow: + case irms_memory: + case irms_internal_boolean: assert(0 && "internal modes cannot be user defined"); - break; + return NULL; - case float_number: - assert(0 && "not yet implemented"); - break; + case irms_float_number: + case irms_int_number: + case irms_reference: + case irms_character: + return register_mode(&mode_tmpl); + } + return NULL; /* to shut up gcc */ +} - case int_number: - case reference: - case character: - break; +/* + * Creates a new vector mode. + */ +ir_mode *new_ir_vector_mode(const char *name, mode_sort sort, int bit_size, unsigned num_of_elem, int bit_align, int sign, + mode_arithmetic arithmetic, unsigned int modulo_shift ) +{ + ir_mode mode_tmpl; + ir_mode *mode; - default: - assert(0); + mode_tmpl.name = new_id_from_str(name); + mode_tmpl.sort = sort; + mode_tmpl.size = bit_size * num_of_elem; + mode_tmpl.align = bit_align; + mode_tmpl.sign = sign ? 1 : 0; + mode_tmpl.modulo_shift = (mode_tmpl.sort == irms_int_number) ? modulo_shift : 0; + mode_tmpl.vector_elem = num_of_elem; + mode_tmpl.arithmetic = arithmetic; + mode_tmpl.link = NULL; + mode_tmpl.tv_priv = NULL; + + mode = find_mode(&mode_tmpl); + if (mode) + return mode; + + if (num_of_elem <= 1) { + assert(0 && "vector modes should have at least 2 elements"); + return NULL; } - /* copy mode struct to modes array */ - ARR_EXTEND(ir_mode, modes, 1); - ARR_EXTEND(tarval*, modes_min, 1); - ARR_EXTEND(tarval*, modes_max, 1); - ARR_EXTEND(tarval*, modes_null, 1); - ARR_EXTEND(tarval*, modes_one, 1); - mode = &modes[num_modes]; - - memcpy(mode, new_mode, sizeof(ir_mode)); - mode->code = num_modes; - num_modes++; + /* sanity checks */ + switch (sort) + { + case irms_auxiliary: + case irms_control_flow: + case irms_memory: + case irms_internal_boolean: + assert(0 && "internal modes cannot be user defined"); + return NULL; - set_mode_values(mode); + case irms_reference: + case irms_character: + assert(0 && "only integer and floating point modes can be vectorized"); + return NULL; - return mode; + case irms_float_number: + assert(0 && "not yet implemented"); + return NULL; + + case irms_int_number: + return register_mode(&mode_tmpl); + } + return NULL; /* to shut up gcc */ } /* Functions for the direct access to all attributes od a ir_mode */ -#ifdef MODE_ACCESS_DEFINES -# undef get_mode_modecode -# undef get_mode_ident -# undef get_mode_name -# undef get_mode_sort -# undef get_mode_size -# undef get_mode_align -#endif modecode -get_mode_modecode(ir_mode *mode) +(get_mode_modecode)(const ir_mode *mode) { ANNOUNCE(); - return mode->code; + return __get_mode_modecode(mode); } ident * -get_mode_ident(ir_mode *mode) +(get_mode_ident)(const ir_mode *mode) { ANNOUNCE(); - return mode->name; + return __get_mode_ident(mode); } const char * -get_mode_name(ir_mode *mode) +get_mode_name(const ir_mode *mode) { ANNOUNCE(); - return id_to_str(mode->name); + return get_id_str(mode->name); } mode_sort -get_mode_sort(ir_mode* mode) +(get_mode_sort)(const ir_mode* mode) { ANNOUNCE(); - return mode->sort; + return __get_mode_sort(mode); } int -get_mode_size(ir_mode *mode) +(get_mode_size_bits)(const ir_mode *mode) { ANNOUNCE(); - return mode->size; + return __get_mode_size_bits(mode); } int -get_mode_align (ir_mode *mode) +(get_mode_size_bytes)(const ir_mode *mode) { + ANNOUNCE(); + return __get_mode_size_bytes(mode); +} + +int +(get_mode_align_bits)(const ir_mode *mode) { ANNOUNCE(); - return mode->align; + return __get_mode_align_bits(mode); } -#ifdef MODE_ACCESS_DEFINES -# define get_mode_modecode(mode) (mode)->code -# define get_mode_ident(mode) (mode)->name -# define get_mode_name(mode) id_to_str((mode)->name) -# define get_mode_sort(mode) (mode)->sort -# define get_mode_size(mode) (mode)->size -# define get_mode_align(mode) (mode)->align -#endif + +int +(get_mode_align_bytes)(const ir_mode *mode) +{ + ANNOUNCE(); + return __get_mode_align_bytes(mode); +} + int -get_mode_sign (ir_mode *mode) +(get_mode_sign)(const ir_mode *mode) { ANNOUNCE(); - return mode->sign; + return __get_mode_sign(mode); +} + +int +(get_mode_arithmetic)(const ir_mode *mode) +{ + ANNOUNCE(); + return get_mode_arithmetic(mode); +} + + +/* Attribute modulo shift specifies for modes of kind irms_int_number + * whether shift applies modulo to value of bits to shift. Asserts + * if mode is not irms_int_number. + */ +unsigned int +(get_mode_modulo_shift)(const ir_mode *mode) { + return __get_mode_modulo_shift(mode); +} + +unsigned int +(get_mode_vector_elems)(const ir_mode *mode) { + return __get_mode_vector_elems(mode); +} + +void * +(get_mode_link)(const ir_mode *mode) +{ + ANNOUNCE(); + return __get_mode_link(mode); +} + +void +(set_mode_link)(ir_mode *mode, void *l) +{ + __set_mode_link(mode, l); } tarval * @@ -262,7 +463,7 @@ get_mode_min (ir_mode *mode) assert(get_mode_modecode(mode) < num_modes); assert(mode_is_data(mode)); - return modes_min[get_mode_modecode(mode)]; + return mode->min; } tarval * @@ -273,7 +474,7 @@ get_mode_max (ir_mode *mode) assert(get_mode_modecode(mode) < num_modes); assert(mode_is_data(mode)); - return modes_max[get_mode_modecode(mode)]; + return mode->max; } tarval * @@ -284,7 +485,7 @@ get_mode_null (ir_mode *mode) assert(get_mode_modecode(mode) < num_modes); assert(mode_is_data(mode)); - return modes_null[get_mode_modecode(mode)]; + return mode->null; } tarval * @@ -295,7 +496,7 @@ get_mode_one (ir_mode *mode) assert(get_mode_modecode(mode) < num_modes); assert(mode_is_data(mode)); - return modes_one[get_mode_modecode(mode)]; + return mode->one; } tarval * @@ -320,154 +521,134 @@ get_mode_NAN(ir_mode *mode) return get_tarval_nan(mode); } -/* Functions to check, whether a modecode is signed, float, int, num, data, - datab or dataM. For more exact definitions read the corresponding pages - in the firm documentation or the followingenumeration - - The set of "float" is defined as: - --------------------------------- - float = {irm_F, irm_D, irm_E} - - The set of "int" is defined as: - ------------------------------- - int = {irm_Bs, irm_Bu, irm_Hs, irm_Hu, irm_Is, irm_Iu, irm_Ls, irm_Lu} - - The set of "num" is defined as: - ------------------------------- - num = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu, - irm_Is, irm_Iu, irm_Ls, irm_Lu} - = {float || int} - - The set of "data" is defined as: - ------------------------------- - data = {irm_F, irm_D, irm_E irm_Bs, irm_Bu, irm_Hs, irm_Hu, - irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P} - = {num || irm_C || irm_U || irm_P} - - The set of "datab" is defined as: - --------------------------------- - datab = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu, - irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P, irm_b} - = {data || irm_b } - - The set of "dataM" is defined as: - --------------------------------- - dataM = {irm_F, irm_D, irm_E, irm_Bs, irm_Bu, irm_Hs, irm_Hu, - irm_Is, irm_Iu, irm_Ls, irm_Lu, irm_C, irm_U, irm_P, irm_M} - = {data || irm_M} -*/ - -#ifdef MODE_ACCESS_DEFINES -# undef mode_is_signed -# undef mode_is_float -# undef mode_is_int -# undef mode_is_num -# undef mode_is_data -# undef mode_is_datab -# undef mode_is_dataM -#endif int -mode_is_signed (ir_mode *mode) -{ +is_mode (void *thing) { + if (get_kind(thing) == k_ir_mode) + return 1; + else + return 0; +} + +int +(mode_is_signed)(const ir_mode *mode) { ANNOUNCE(); - assert(mode); - return mode->sign; + return __mode_is_signed(mode); } int -mode_is_float (ir_mode *mode) -{ +(mode_is_float)(const ir_mode *mode) { ANNOUNCE(); - assert(mode); - return (get_mode_sort(mode) == float_number); + return __mode_is_float(mode); } int -mode_is_int (ir_mode *mode) -{ +(mode_is_int)(const ir_mode *mode) { ANNOUNCE(); - assert(mode); - return (get_mode_sort(mode) == int_number); + return __mode_is_int(mode); } int -mode_is_num (ir_mode *mode) -{ +(mode_is_character)(const ir_mode *mode) { ANNOUNCE(); - assert(mode); - return (mode_is_int(mode) || mode_is_float(mode)); + return __mode_is_character(mode); } int -mode_is_data (ir_mode *mode) -{ +(mode_is_reference)(const ir_mode *mode) { ANNOUNCE(); - assert(mode); - return (mode_is_num(mode) || get_mode_sort(mode) == character || get_mode_sort(mode) == reference); + return __mode_is_reference(mode); } int -mode_is_datab (ir_mode *mode) -{ +(mode_is_num)(const ir_mode *mode) { ANNOUNCE(); - assert(mode); - return (mode_is_data(mode) || get_mode_sort(mode) == internal_boolean); + return __mode_is_num(mode); } int -mode_is_dataM (ir_mode *mode) -{ +(mode_is_numP)(const ir_mode *mode) { ANNOUNCE(); - assert(mode); - return (mode_is_data(mode) || get_mode_modecode(mode) == irm_M); -} -#ifdef MODE_ACCESS_DEFINES -# define mode_is_signed(mode) (mode)->sign -# define mode_is_float(mode) ((mode)->sort == float_number) -# define mode_is_int(mode) ((mode)->sort == int_number) -# define mode_is_num(mode) (((mode)->sort == float_number) || ((mode)->sort == int_number)) -# define mode_is_data(mode) (((mode)->sort == float_number) || ((mode)->sort == int_number) || ((mode)->sort == character) || ((mode)->sort == reference)) -# define mode_is_datab(mode) (((mode)->sort == float_number) || ((mode)->sort == int_number) || ((mode)->sort == character) || ((mode)->sort == reference) || ((mode)->sort == internal_boolean)) -# define mode_is_dataM(mode) (((mode)->sort == float_number) || ((mode)->sort == int_number) || ((mode)->sort == character) || ((mode)->sort == reference) || ((mode)->code == irm_M)) -#endif + return __mode_is_numP(mode); +} + +int +(mode_is_data)(const ir_mode *mode) { + ANNOUNCE(); + return __mode_is_data(mode); +} + +int +(mode_is_datab)(const ir_mode *mode) { + ANNOUNCE(); + return __mode_is_datab(mode); +} + +int +(mode_is_dataM)(const ir_mode *mode) { + ANNOUNCE(); + return __mode_is_dataM(mode); +} + +int +(mode_is_float_vector)(const ir_mode *mode) { + ANNOUNCE(); + return __mode_is_float_vector(mode); +} + +int +(mode_is_int_vector)(const ir_mode *mode) { + ANNOUNCE(); + return __mode_is_int_vector(mode); +} + /* Returns true if sm can be converted to lm without loss. */ -bool -smaller_mode(ir_mode *sm, ir_mode *lm) +int +smaller_mode(const ir_mode *sm, const ir_mode *lm) { + int sm_bits, lm_bits; + ANNOUNCE(); assert(sm); assert(lm); if (sm == lm) return 1; + sm_bits = get_mode_size_bits(sm); + lm_bits = get_mode_size_bits(lm); + switch(get_mode_sort(sm)) { - case int_number: + case irms_int_number: switch(get_mode_sort(lm)) { - case int_number: + case irms_int_number: /* integers are convertable if * - both have the same sign and lm is the larger one * - lm is the signed one and is at least two bits larger * (one for the sign, one for the highest bit of sm) + * - sm & lm are two_complement and lm has greater or equal number of bits */ - if (mode_is_signed(sm)) + if ( get_mode_arithmetic(sm) == get_mode_arithmetic(lm) + && get_mode_arithmetic(sm) == irma_twos_complement) { + return lm_bits >= sm_bits; + } + else if (mode_is_signed(sm)) { - if ( mode_is_signed(lm) && (get_mode_size(lm) > get_mode_size(sm)) ) + if ( mode_is_signed(lm) && (lm_bits >= sm_bits) ) return 1; } else if (mode_is_signed(lm)) { - if (get_mode_size(lm) > get_mode_size(sm) + 1) + if (lm_bits > sm_bits + 1) return 1; } - else if (get_mode_size(lm) > get_mode_size(sm)) + else if (lm_bits >= sm_bits) { return 1; } break; - case float_number: + case irms_float_number: /* int to float works if the float is large enough */ return 0; @@ -476,15 +657,15 @@ smaller_mode(ir_mode *sm, ir_mode *lm) } break; - case float_number: - /* XXX currently only the three standard 32,64,80 bit floats - * are supported which can safely be converted */ - if ( (get_mode_sort(lm) == float_number) - && (get_mode_size(lm) > get_mode_size(sm)) ) - return 1; + case irms_float_number: + if (get_mode_arithmetic(sm) == get_mode_arithmetic(lm)) { + if ( (get_mode_sort(lm) == irms_float_number) + && (get_mode_size_bits(lm) >= get_mode_size_bits(sm)) ) + return 1; + } break; - case reference: + case irms_reference: /* do exist machines out there with different pointer lenghts ?*/ return 0; @@ -496,204 +677,272 @@ smaller_mode(ir_mode *sm, ir_mode *lm) return 0; } -/** ** initialization ** **/ +/* initialization, build the default modes */ void init_mode (void) { + ir_mode newmode; ANNOUNCE(); /* init flexible array */ - modes = NEW_ARR_F(ir_mode, irm_max); - modes_min = NEW_ARR_F(tarval*, irm_max); - modes_max = NEW_ARR_F(tarval*, irm_max); - modes_null = NEW_ARR_F(tarval*, irm_max); - modes_one = NEW_ARR_F(tarval*, irm_max); + obstack_init(&modes); + + num_modes = 0; /* initialize predefined modes */ + + /* Internal Modes */ + newmode.arithmetic = irma_none; + newmode.size = 0; + newmode.align = 0; + newmode.sign = 0; + newmode.modulo_shift = 0; + newmode.vector_elem = 0; + newmode.link = NULL; + newmode.tv_priv = NULL; + + /* Control Flow Modes*/ + newmode.sort = irms_control_flow; + /* Basic Block */ - mode_BB = &modes[irm_BB]; - mode_BB->name = id_from_str("BB", 2); - mode_BB->code = irm_BB; - mode_BB->sort = auxiliary; - mode_BB->sign = 0; - - /* eXecution */ - mode_X = &modes[irm_X]; - mode_X->name = id_from_str("X", 1); - mode_X->code = irm_X; - mode_X->sort = auxiliary; - mode_X->sign = 0; + newmode.name = id_from_str("BB", 2); + newmode.code = irm_BB; + + mode_BB = register_mode(&newmode); + +/* eXecution */ + newmode.name = id_from_str("X", 1); + newmode.code = irm_X; + + mode_X = register_mode(&newmode); + + /* Memory Modes */ + newmode.sort = irms_memory; /* Memory */ - mode_M = &modes[irm_M]; - mode_M->name = id_from_str("M", 1); - mode_M->code = irm_M; - mode_M->sort = auxiliary; - mode_M->sign = 0; + newmode.name = id_from_str("M", 1); + newmode.code = irm_M; + + mode_M = register_mode(&newmode); + + /* Auxiliary Modes */ + newmode.sort = irms_auxiliary, /* Tuple */ - mode_T = &modes[irm_T]; - mode_T->name = id_from_str("T", 1); - mode_T->code = irm_T; - mode_T->sign = 0; + newmode.name = id_from_str("T", 1); + newmode.code = irm_T; + + mode_T = register_mode(&newmode); + + /* ANY */ + newmode.name = id_from_str("ANY", 3); + newmode.code = irm_ANY; + + mode_ANY = register_mode(&newmode); + + /* BAD */ + newmode.name = id_from_str("BAD", 3); + newmode.code = irm_BAD; + + mode_BAD = register_mode(&newmode); + + /* Internal Boolean Modes */ + newmode.sort = irms_internal_boolean; /* boolean */ - mode_b = &modes[irm_b]; - mode_b->name = id_from_str("b", 1); - mode_b->code = irm_b; - mode_b->sort = internal_boolean; - mode_b->sign = 0; + newmode.name = id_from_str("b", 1); + newmode.code = irm_b; + + mode_b = register_mode(&newmode); + +/* Data Modes */ + newmode.vector_elem = 1; + + /* Float Number Modes */ + newmode.sort = irms_float_number; + newmode.arithmetic = irma_ieee754; /* float */ - mode_F = &modes[irm_F]; - mode_F->name = id_from_str("F", 1); - mode_F->code = irm_F; - mode_F->sort = float_number; - mode_F->sign = 1; - mode_F->align = 32; - mode_F->size = 32; + newmode.name = id_from_str("F", 1); + newmode.code = irm_F; + newmode.sign = 1; + newmode.align = 32; + newmode.size = 32; - set_mode_values(mode_F); + mode_F = register_mode(&newmode); /* double */ - mode_D = &modes[irm_D]; - mode_D->name = id_from_str("D", 1); - mode_D->code = irm_D; - mode_D->sort = float_number; - mode_D->sign = 1; - mode_D->align = 32; - mode_D->size = 64; + newmode.name = id_from_str("D", 1); + newmode.code = irm_D; + newmode.sign = 1; + newmode.align = 64; + newmode.size = 64; - set_mode_values(mode_D); + mode_D = register_mode(&newmode); /* extended */ - mode_E = &modes[irm_E]; - mode_E->name = id_from_str("E", 1); - mode_E->code = irm_E; - mode_E->sort = float_number; - mode_E->sign = 1; - mode_E->align = 32; - mode_E->size = 80; + newmode.name = id_from_str("E", 1); + newmode.code = irm_E; + newmode.sign = 1; + newmode.align = 128; + newmode.size = 80; + + mode_E = register_mode(&newmode); - set_mode_values(mode_E); + /* Integer Number Modes */ + newmode.sort = irms_int_number; + newmode.arithmetic = irma_twos_complement; /* signed byte */ - mode_Bs = &modes[irm_Bs]; - mode_Bs->name = id_from_str("Bs", 2); - mode_Bs->code = irm_Bs; - mode_Bs->sort = int_number; - mode_Bs->sign = 1; - mode_Bs->align = 8; - mode_Bs->size = 8; + newmode.name = id_from_str("Bs", 2); + newmode.code = irm_Bs; + newmode.sign = 1; + newmode.align = 8; + newmode.size = 8; + newmode.modulo_shift = 32; - set_mode_values(mode_Bs); + mode_Bs = register_mode(&newmode); /* unsigned byte */ - mode_Bu = &modes[irm_Bu]; - mode_Bu->name = id_from_str("Bu", 2); - mode_Bu->code = irm_Bu; - mode_Bu->sort = int_number; - mode_Bu->sign = 0; - mode_Bu->align = 8; - mode_Bu->size = 8; + newmode.name = id_from_str("Bu", 2); + newmode.code = irm_Bu; + newmode.arithmetic = irma_twos_complement; + newmode.sign = 0; + newmode.align = 8; + newmode.size = 8; + newmode.modulo_shift = 32; - set_mode_values(mode_Bu); + mode_Bu = register_mode(&newmode); /* signed short integer */ - mode_Hs = &modes[irm_Hs]; - mode_Hs->name = id_from_str("Hs", 2); - mode_Hs->code = irm_Hs; - mode_Hs->sort = int_number; - mode_Hs->sign = 1; - mode_Hs->align = 16; - mode_Hs->size = 16; + newmode.name = id_from_str("Hs", 2); + newmode.code = irm_Hs; + newmode.sign = 1; + newmode.align = 16; + newmode.size = 16; + newmode.modulo_shift = 32; - set_mode_values(mode_Hs); + mode_Hs = register_mode(&newmode); /* unsigned short integer */ - mode_Hu = &modes[irm_Hu]; - mode_Hu->name = id_from_str("Hu", 2); - mode_Hu->code = irm_Hu; - mode_Hu->sort = int_number; - mode_Hu->sign = 0; - mode_Hu->align = 16; - mode_Hu->size = 16; + newmode.name = id_from_str("Hu", 2); + newmode.code = irm_Hu; + newmode.sign = 0; + newmode.align = 16; + newmode.size = 16; + newmode.modulo_shift = 32; - set_mode_values(mode_Hu); + mode_Hu = register_mode(&newmode); /* signed integer */ - mode_Is = &modes[irm_Is]; - mode_Is->name = id_from_str("Is", 2); - mode_Is->code = irm_Is; - mode_Is->sort = int_number; - mode_Is->sign = 1; - mode_Is->align = 32; - mode_Is->size = 32; + newmode.name = id_from_str("Is", 2); + newmode.code = irm_Is; + newmode.sign = 1; + newmode.align = 32; + newmode.size = 32; + newmode.modulo_shift = 32; - set_mode_values(mode_Is); + mode_Is = register_mode(&newmode); /* unsigned integer */ - mode_Iu = &modes[irm_Iu]; - mode_Iu->name = id_from_str("Iu", 2); - mode_Iu->code = irm_Iu; - mode_Iu->sort = int_number; - mode_Iu->sign = 0; - mode_Iu->align = 32; - mode_Iu->size = 32; + newmode.name = id_from_str("Iu", 2); + newmode.code = irm_Iu; + newmode.sign = 0; + newmode.align = 32; + newmode.size = 32; + newmode.modulo_shift = 32; - set_mode_values(mode_Iu); + mode_Iu = register_mode(&newmode); /* signed long integer */ - mode_Ls = &modes[irm_Ls]; - mode_Ls->name = id_from_str("Ls", 2); - mode_Ls->code = irm_Ls; - mode_Ls->sort = int_number; - mode_Ls->sign = 1; - mode_Ls->align = 32; - mode_Ls->size = 64; + newmode.name = id_from_str("Ls", 2); + newmode.code = irm_Ls; + newmode.sign = 1; + newmode.align = 32; + newmode.size = 64; + newmode.modulo_shift = 64; - set_mode_values(mode_Ls); + mode_Ls = register_mode(&newmode); /* unsigned long integer */ - mode_Lu = &modes[irm_Lu]; - mode_Lu->name = id_from_str("Lu", 2); - mode_Lu->code = irm_Lu; - mode_Lu->sort = int_number; - mode_Lu->sign = 0; - mode_Lu->align = 32; - mode_Lu->size = 64; + newmode.name = id_from_str("Lu", 2); + newmode.code = irm_Lu; + newmode.sign = 0; + newmode.align = 32; + newmode.size = 64; + newmode.modulo_shift = 64; - set_mode_values(mode_Lu); + mode_Lu = register_mode(&newmode); + + /* Character Modes */ + newmode.sort = irms_character; + newmode.arithmetic = irma_none; /* Character */ - mode_C = &modes[irm_C]; - mode_C->name = id_from_str("C", 1); - mode_C->code = irm_C; - mode_C->sort = character; - mode_C->sign = 0; - mode_C->align = 8; - mode_C->size = 8; + newmode.name = id_from_str("C", 1); + newmode.code = irm_C; + newmode.sign = 0; + newmode.align = 8; + newmode.size = 8; + newmode.modulo_shift = 32; - set_mode_values(mode_C); + mode_C = register_mode(&newmode); /* Unicode character */ - mode_U = &modes[irm_U]; - mode_U->name = id_from_str("U", 1); - mode_U->code = irm_U; - mode_U->sort = character; - mode_U->sign = 0; - mode_U->align = 16; - mode_U->size = 16; + newmode.name = id_from_str("U", 1); + newmode.code = irm_U; + newmode.sign = 0; + newmode.align = 16; + newmode.size = 16; + newmode.modulo_shift = 32; + + mode_U = register_mode(&newmode); - set_mode_values(mode_U); + /* Reference Modes */ + newmode.sort = irms_reference; + newmode.arithmetic = irma_twos_complement; /* pointer */ - mode_P = &modes[irm_P]; - mode_P->name = id_from_str("P", 1); - mode_P->code = irm_P; - mode_P->sort = reference; - mode_P->sign = 0; - mode_P->align = 32; - mode_P->size = 32; - - num_modes = irm_max; + newmode.name = id_from_str("P", 1); + newmode.code = irm_P; + newmode.sign = 0; + newmode.align = 32; + newmode.size = 32; + newmode.modulo_shift = 0; + + mode_P = register_mode(&newmode); + + /* set the machine specific modes to the predifined ones */ + mode_P_mach = mode_P; +} + + +void finish_mode(void) { + obstack_free(&modes, 0); + + mode_T = NULL; + mode_X = NULL; + mode_M = NULL; + mode_BB = NULL; + mode_ANY = NULL; + mode_BAD = NULL; + + mode_F = NULL; + mode_D = NULL; + mode_E = NULL; + + mode_Bs = NULL; + mode_Bu = NULL; + mode_Hs = NULL; + mode_Hu = NULL; + mode_Is = NULL; + mode_Iu = NULL; + mode_Ls = NULL; + mode_Lu = NULL; + + mode_C = NULL; + mode_U = NULL; + mode_b = NULL; + mode_P = NULL; + + mode_P_mach = NULL; }