X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fsbitmap.h;h=dc6d671549978455ff06eb024e3a1857e5a855f6;hp=21c697451e2d482bd366dc84c73b17775a17651d;hb=ca86b3fb1262b722074bd456bdbea1fa764a5a37;hpb=67ce556b47830dd825524e8370969b814c355216 diff --git a/gcc/sbitmap.h b/gcc/sbitmap.h index 21c697451e2..dc6d6715499 100644 --- a/gcc/sbitmap.h +++ b/gcc/sbitmap.h @@ -1,11 +1,12 @@ /* Simple bitmaps. - Copyright (C) 1999, 2000, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2002, 2003, 2004, 2006, 2007, 2008 + Free Software Foundation, Inc. This file is part of GCC. 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 +Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY @@ -14,9 +15,8 @@ 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 GCC; see the file COPYING. If not, write to the Free -Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef GCC_SBITMAP_H #define GCC_SBITMAP_H @@ -28,37 +28,73 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #define SBITMAP_ELT_BITS ((unsigned) HOST_BITS_PER_WIDEST_FAST_INT) #define SBITMAP_ELT_TYPE unsigned HOST_WIDEST_FAST_INT -typedef struct simple_bitmap_def +/* Can't use SBITMAP_ELT_BITS in this macro because it contains a + cast. There is no perfect macro in GCC to test against. This + suffices for roughly 99% of the hosts we run on, and the rest + don't have 256 bit integers. */ +#if HOST_BITS_PER_WIDEST_FAST_INT > 255 +#error Need to increase size of datatype used for popcount +#endif + +struct simple_bitmap_def { + unsigned char *popcount; /* Population count. */ 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; +typedef const SBITMAP_ELT_TYPE *const_sbitmap_ptr; /* Return the set size needed for N elements. */ #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) +#define SBITMAP_SIZE_BYTES(BITMAP) ((BITMAP)->size * sizeof (SBITMAP_ELT_TYPE)) /* 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)) +/* Set bit number BITNO in the sbitmap MAP. Updates population count + if this bitmap has one. */ + +static inline void +SET_BIT (sbitmap map, unsigned int bitno) +{ + if (map->popcount) + { + bool oldbit; + oldbit = TEST_BIT (map, bitno); + if (!oldbit) + map->popcount[bitno / SBITMAP_ELT_BITS]++; + } + map->elms[bitno / SBITMAP_ELT_BITS] + |= (SBITMAP_ELT_TYPE) 1 << (bitno) % SBITMAP_ELT_BITS; +} + + + +/* Reset bit number BITNO in the sbitmap MAP. Updates population + count if this bitmap has one. */ + +static inline void +RESET_BIT (sbitmap map, unsigned int bitno) +{ + if (map->popcount) + { + bool oldbit; + oldbit = TEST_BIT (map, bitno); + if (oldbit) + map->popcount[bitno / SBITMAP_ELT_BITS]--; + } + map->elms[bitno / SBITMAP_ELT_BITS] + &= ~((SBITMAP_ELT_TYPE) 1 << (bitno) % SBITMAP_ELT_BITS); +} /* The iterator for sbitmap. */ typedef struct { /* The pointer to the first word of the bitmap. */ - SBITMAP_ELT_TYPE *ptr; + const SBITMAP_ELT_TYPE *ptr; /* The size of the bitmap. */ unsigned int size; @@ -77,7 +113,7 @@ typedef struct { MIN. */ static inline void -sbitmap_iter_init (sbitmap_iterator *i, sbitmap bmp, unsigned int min) +sbitmap_iter_init (sbitmap_iterator *i, const_sbitmap bmp, unsigned int min) { i->word_num = min / (unsigned int) SBITMAP_ELT_BITS; i->bit_num = min; @@ -165,44 +201,48 @@ do { \ } \ } while (0) -#define sbitmap_free(MAP) free(MAP) +#define sbitmap_free(MAP) (free((MAP)->popcount), free((MAP))) #define sbitmap_vector_free(VEC) free(VEC) struct int_list; -extern void dump_sbitmap (FILE *, sbitmap); -extern void dump_sbitmap_file (FILE *, sbitmap); +extern void dump_sbitmap (FILE *, const_sbitmap); +extern void dump_sbitmap_file (FILE *, const_sbitmap); extern void dump_sbitmap_vector (FILE *, const char *, const char *, sbitmap *, int); extern sbitmap sbitmap_alloc (unsigned int); +extern sbitmap sbitmap_alloc_with_popcount (unsigned int); extern sbitmap *sbitmap_vector_alloc (unsigned int, unsigned int); extern sbitmap sbitmap_resize (sbitmap, unsigned int, int); -extern void sbitmap_copy (sbitmap, sbitmap); -extern int sbitmap_equal (sbitmap, sbitmap); +extern void sbitmap_copy (sbitmap, const_sbitmap); +extern void sbitmap_copy_n (sbitmap, const_sbitmap, unsigned int); +extern int sbitmap_equal (const_sbitmap, const_sbitmap); +extern bool sbitmap_empty_p (const_sbitmap); +extern bool sbitmap_range_empty_p (const_sbitmap, unsigned int, unsigned int); extern void sbitmap_zero (sbitmap); extern void sbitmap_ones (sbitmap); extern void sbitmap_vector_zero (sbitmap *, unsigned int); extern void sbitmap_vector_ones (sbitmap *, unsigned int); -extern void sbitmap_union_of_diff (sbitmap, sbitmap, sbitmap, sbitmap); -extern bool sbitmap_union_of_diff_cg (sbitmap, sbitmap, sbitmap, sbitmap); -extern void sbitmap_difference (sbitmap, sbitmap, sbitmap); -extern void sbitmap_not (sbitmap, sbitmap); -extern void sbitmap_a_or_b_and_c (sbitmap, sbitmap, sbitmap, sbitmap); -extern bool sbitmap_a_or_b_and_c_cg (sbitmap, sbitmap, sbitmap, sbitmap); -extern void sbitmap_a_and_b_or_c (sbitmap, sbitmap, sbitmap, sbitmap); -extern bool sbitmap_a_and_b_or_c_cg (sbitmap, sbitmap, sbitmap, sbitmap); -extern bool sbitmap_any_common_bits (sbitmap, sbitmap); -extern void sbitmap_a_and_b (sbitmap, sbitmap, sbitmap); -extern bool sbitmap_a_and_b_cg (sbitmap, sbitmap, sbitmap); -extern void sbitmap_a_or_b (sbitmap, sbitmap, sbitmap); -extern bool sbitmap_a_or_b_cg (sbitmap, sbitmap, sbitmap); -extern void sbitmap_a_xor_b (sbitmap, sbitmap, sbitmap); -extern bool sbitmap_a_xor_b_cg (sbitmap, sbitmap, sbitmap); -extern bool sbitmap_a_subset_b_p (sbitmap, sbitmap); - -extern int sbitmap_first_set_bit (sbitmap); -extern int sbitmap_last_set_bit (sbitmap); +extern void sbitmap_union_of_diff (sbitmap, const_sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_union_of_diff_cg (sbitmap, const_sbitmap, const_sbitmap, const_sbitmap); +extern void sbitmap_difference (sbitmap, const_sbitmap, const_sbitmap); +extern void sbitmap_not (sbitmap, const_sbitmap); +extern void sbitmap_a_or_b_and_c (sbitmap, const_sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_a_or_b_and_c_cg (sbitmap, const_sbitmap, const_sbitmap, const_sbitmap); +extern void sbitmap_a_and_b_or_c (sbitmap, const_sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_a_and_b_or_c_cg (sbitmap, const_sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_any_common_bits (const_sbitmap, const_sbitmap); +extern void sbitmap_a_and_b (sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_a_and_b_cg (sbitmap, const_sbitmap, const_sbitmap); +extern void sbitmap_a_or_b (sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_a_or_b_cg (sbitmap, const_sbitmap, const_sbitmap); +extern void sbitmap_a_xor_b (sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_a_xor_b_cg (sbitmap, const_sbitmap, const_sbitmap); +extern bool sbitmap_a_subset_b_p (const_sbitmap, const_sbitmap); + +extern int sbitmap_first_set_bit (const_sbitmap); +extern int sbitmap_last_set_bit (const_sbitmap); extern void sbitmap_intersect_of_predsucc (sbitmap, sbitmap *, int, struct int_list **); @@ -222,6 +262,8 @@ extern void sbitmap_intersection_of_preds (sbitmap, sbitmap *, int); extern void sbitmap_union_of_succs (sbitmap, sbitmap *, int); extern void sbitmap_union_of_preds (sbitmap, sbitmap *, int); -extern void debug_sbitmap (sbitmap); +extern void debug_sbitmap (const_sbitmap); extern sbitmap sbitmap_realloc (sbitmap, unsigned int); +extern unsigned long sbitmap_popcount(const_sbitmap, unsigned long); +extern void sbitmap_verify_popcount (const_sbitmap); #endif /* ! GCC_SBITMAP_H */