diff options
Diffstat (limited to 'contrib/gcc/sbitmap.h')
-rw-r--r-- | contrib/gcc/sbitmap.h | 181 |
1 files changed, 100 insertions, 81 deletions
diff --git a/contrib/gcc/sbitmap.h b/contrib/gcc/sbitmap.h index ca475fa..8896801 100644 --- a/contrib/gcc/sbitmap.h +++ b/contrib/gcc/sbitmap.h @@ -1,122 +1,141 @@ /* Simple bitmaps. - Copyright (C) 1999 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc. -This file is part of GNU CC. +This file is part of GCC. -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +along with GCC; see the file COPYING. If not, write to the Free +Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. */ + +#ifndef GCC_SBITMAP_H +#define GCC_SBITMAP_H /* It's not clear yet whether using bitmap.[ch] will be a win. It should be straightforward to convert so for now we keep things simple while more important issues are dealt with. */ -#define SBITMAP_ELT_BITS HOST_BITS_PER_WIDE_INT +#define SBITMAP_ELT_BITS ((unsigned) HOST_BITS_PER_WIDE_INT) #define SBITMAP_ELT_TYPE unsigned HOST_WIDE_INT -typedef struct simple_bitmap_def { - /* Number of bits. */ - int n_bits; - /* Size in elements. */ - int size; - /* Size in bytes. */ - int bytes; - /* The elements. */ - SBITMAP_ELT_TYPE elms[1]; +typedef struct simple_bitmap_def +{ + unsigned int n_bits; /* Number of bits. */ + unsigned int size; /* Size in elements. */ + unsigned int bytes; /* Size in bytes. */ + SBITMAP_ELT_TYPE elms[1]; /* The elements. */ } *sbitmap; typedef SBITMAP_ELT_TYPE *sbitmap_ptr; /* Return the set size needed for N elements. */ -#define SBITMAP_SET_SIZE(n) (((n) + SBITMAP_ELT_BITS - 1) / SBITMAP_ELT_BITS) +#define SBITMAP_SET_SIZE(N) (((N) + SBITMAP_ELT_BITS - 1) / SBITMAP_ELT_BITS) -/* set bit number bitno in the bitmap */ -#define SET_BIT(bitmap, bitno) \ - ((bitmap)->elms [(bitno) / SBITMAP_ELT_BITS] \ - |= (SBITMAP_ELT_TYPE) 1 << (bitno) % SBITMAP_ELT_BITS) +/* Set bit number bitno in the bitmap. */ +#define SET_BIT(BITMAP, BITNO) \ + ((BITMAP)->elms [(BITNO) / SBITMAP_ELT_BITS] \ + |= (SBITMAP_ELT_TYPE) 1 << (BITNO) % SBITMAP_ELT_BITS) -/* test if bit number bitno in the bitmap is set */ -#define TEST_BIT(bitmap, bitno) \ -((bitmap)->elms [(bitno) / SBITMAP_ELT_BITS] >> (bitno) % SBITMAP_ELT_BITS & 1) +/* Test if bit number bitno in the bitmap is set. */ +#define TEST_BIT(BITMAP, BITNO) \ +((BITMAP)->elms [(BITNO) / SBITMAP_ELT_BITS] >> (BITNO) % SBITMAP_ELT_BITS & 1) -/* reset bit number bitno in the bitmap */ -#define RESET_BIT(bitmap, bitno) \ - ((bitmap)->elms [(bitno) / SBITMAP_ELT_BITS] \ - &= ~((SBITMAP_ELT_TYPE) 1 << (bitno) % SBITMAP_ELT_BITS)) +/* Reset bit number bitno in the bitmap. */ +#define RESET_BIT(BITMAP, BITNO) \ + ((BITMAP)->elms [(BITNO) / SBITMAP_ELT_BITS] \ + &= ~((SBITMAP_ELT_TYPE) 1 << (BITNO) % SBITMAP_ELT_BITS)) /* Loop over all elements of SBITSET, starting with MIN. */ #define EXECUTE_IF_SET_IN_SBITMAP(SBITMAP, MIN, N, CODE) \ do { \ - unsigned int bit_num_ = (MIN) % (unsigned) SBITMAP_ELT_BITS; \ - unsigned int word_num_ = (MIN) / (unsigned) SBITMAP_ELT_BITS; \ + unsigned int word_num_; \ + unsigned int bit_num_ = (MIN) % (unsigned int) SBITMAP_ELT_BITS; \ unsigned int size_ = (SBITMAP)->size; \ SBITMAP_ELT_TYPE *ptr_ = (SBITMAP)->elms; \ \ - while (word_num_ < size_) \ + for (word_num_ = (MIN) / (unsigned int) SBITMAP_ELT_BITS; \ + word_num_ < size_; word_num_++, bit_num_ = 0) \ { \ SBITMAP_ELT_TYPE word_ = ptr_[word_num_]; \ + \ if (word_ != 0) \ - { \ - for (; bit_num_ < SBITMAP_ELT_BITS; ++bit_num_) \ - { \ - SBITMAP_ELT_TYPE mask_ = (SBITMAP_ELT_TYPE)1 << bit_num_; \ - if ((word_ & mask_) != 0) \ - { \ - word_ &= ~mask_; \ - (N) = word_num_ * SBITMAP_ELT_BITS + bit_num_; \ - CODE; \ - if (word_ == 0) \ - break; \ - } \ - } \ - } \ - bit_num_ = 0; \ - word_num_++; \ - } \ + for (; bit_num_ < SBITMAP_ELT_BITS; bit_num_++) \ + { \ + SBITMAP_ELT_TYPE _mask = (SBITMAP_ELT_TYPE) 1 << bit_num_; \ + \ + if ((word_ & _mask) != 0) \ + { \ + word_ &= ~ _mask; \ + (N) = word_num_ * SBITMAP_ELT_BITS + bit_num_; \ + CODE; \ + if (word_ == 0) \ + break; \ + } \ + } \ + } \ } while (0) -#define sbitmap_free(map) free(map) -#define sbitmap_vector_free(vec) free(vec) - -extern void dump_sbitmap PROTO ((FILE *, sbitmap)); -extern void dump_sbitmap_vector PROTO ((FILE *, const char *, const char *, - sbitmap *, int)); - -extern sbitmap sbitmap_alloc PROTO ((int)); -extern sbitmap *sbitmap_vector_alloc PROTO ((int, int)); - -extern void sbitmap_copy PROTO ((sbitmap, sbitmap)); -extern void sbitmap_zero PROTO ((sbitmap)); -extern void sbitmap_ones PROTO ((sbitmap)); -extern void sbitmap_vector_zero PROTO ((sbitmap *, int)); -extern void sbitmap_vector_ones PROTO ((sbitmap *, int)); - -extern int sbitmap_union_of_diff PROTO ((sbitmap, sbitmap, sbitmap, sbitmap)); -extern void sbitmap_difference PROTO ((sbitmap, sbitmap, sbitmap)); -extern void sbitmap_not PROTO ((sbitmap, sbitmap)); -extern int sbitmap_a_or_b_and_c PROTO ((sbitmap, sbitmap, sbitmap, sbitmap)); -extern int sbitmap_a_and_b_or_c PROTO ((sbitmap, sbitmap, sbitmap, sbitmap)); -extern int sbitmap_a_and_b PROTO ((sbitmap, sbitmap, sbitmap)); -extern int sbitmap_a_or_b PROTO ((sbitmap, sbitmap, sbitmap)); +#define sbitmap_free(MAP) free(MAP) +#define sbitmap_vector_free(VEC) free(VEC) struct int_list; -extern void sbitmap_intersect_of_predsucc PROTO ((sbitmap, sbitmap *, + +extern void dump_sbitmap PARAMS ((FILE *, sbitmap)); +extern void dump_sbitmap_vector PARAMS ((FILE *, const char *, + const char *, sbitmap *, + int)); +extern sbitmap sbitmap_alloc PARAMS ((unsigned int)); +extern sbitmap *sbitmap_vector_alloc PARAMS ((unsigned int, unsigned int)); +extern void sbitmap_copy PARAMS ((sbitmap, sbitmap)); +extern int sbitmap_equal PARAMS ((sbitmap, sbitmap)); +extern void sbitmap_zero PARAMS ((sbitmap)); +extern void sbitmap_ones PARAMS ((sbitmap)); +extern void sbitmap_vector_zero PARAMS ((sbitmap *, unsigned int)); +extern void sbitmap_vector_ones PARAMS ((sbitmap *, unsigned int)); + +extern int sbitmap_union_of_diff PARAMS ((sbitmap, sbitmap, sbitmap, + sbitmap)); +extern void sbitmap_difference PARAMS ((sbitmap, sbitmap, sbitmap)); +extern void sbitmap_not PARAMS ((sbitmap, sbitmap)); +extern int sbitmap_a_or_b_and_c PARAMS ((sbitmap, sbitmap, sbitmap, + sbitmap)); +extern int sbitmap_a_and_b_or_c PARAMS ((sbitmap, sbitmap, sbitmap, + sbitmap)); +extern int sbitmap_a_and_b PARAMS ((sbitmap, sbitmap, sbitmap)); +extern int sbitmap_a_or_b PARAMS ((sbitmap, sbitmap, sbitmap)); +extern int sbitmap_a_xor_b PARAMS ((sbitmap, sbitmap, sbitmap)); +extern int sbitmap_a_subset_b_p PARAMS ((sbitmap, sbitmap)); + +extern int sbitmap_first_set_bit PARAMS ((sbitmap)); +extern int sbitmap_last_set_bit PARAMS ((sbitmap)); + +extern void sbitmap_intersect_of_predsucc PARAMS ((sbitmap, sbitmap *, int, struct int_list **)); #define sbitmap_intersect_of_predecessors sbitmap_intersect_of_predsucc #define sbitmap_intersect_of_successors sbitmap_intersect_of_predsucc -extern void sbitmap_union_of_predsucc PROTO ((sbitmap, sbitmap *, int, - struct int_list **)); +extern void sbitmap_union_of_predsucc PARAMS ((sbitmap, sbitmap *, int, + struct int_list **)); #define sbitmap_union_of_predecessors sbitmap_union_of_predsucc #define sbitmap_union_of_successors sbitmap_union_of_predsucc + +/* Intersection and Union of preds/succs using the new flow graph + structure instead of the pred/succ arrays. */ + +extern void sbitmap_intersection_of_succs PARAMS ((sbitmap, sbitmap *, int)); +extern void sbitmap_intersection_of_preds PARAMS ((sbitmap, sbitmap *, int)); +extern void sbitmap_union_of_succs PARAMS ((sbitmap, sbitmap *, int)); +extern void sbitmap_union_of_preds PARAMS ((sbitmap, sbitmap *, int)); + +extern void debug_sbitmap PARAMS ((sbitmap)); +#endif /* ! GCC_SBITMAP_H */ |