1*c87b03e5Sespie /* Simple bitmaps. 2*c87b03e5Sespie Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc. 3*c87b03e5Sespie 4*c87b03e5Sespie This file is part of GCC. 5*c87b03e5Sespie 6*c87b03e5Sespie GCC is free software; you can redistribute it and/or modify it under 7*c87b03e5Sespie the terms of the GNU General Public License as published by the Free 8*c87b03e5Sespie Software Foundation; either version 2, or (at your option) any later 9*c87b03e5Sespie version. 10*c87b03e5Sespie 11*c87b03e5Sespie GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12*c87b03e5Sespie WARRANTY; without even the implied warranty of MERCHANTABILITY or 13*c87b03e5Sespie FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14*c87b03e5Sespie for more details. 15*c87b03e5Sespie 16*c87b03e5Sespie You should have received a copy of the GNU General Public License 17*c87b03e5Sespie along with GCC; see the file COPYING. If not, write to the Free 18*c87b03e5Sespie Software Foundation, 59 Temple Place - Suite 330, Boston, MA 19*c87b03e5Sespie 02111-1307, USA. */ 20*c87b03e5Sespie 21*c87b03e5Sespie #ifndef GCC_SBITMAP_H 22*c87b03e5Sespie #define GCC_SBITMAP_H 23*c87b03e5Sespie 24*c87b03e5Sespie /* It's not clear yet whether using bitmap.[ch] will be a win. 25*c87b03e5Sespie It should be straightforward to convert so for now we keep things simple 26*c87b03e5Sespie while more important issues are dealt with. */ 27*c87b03e5Sespie 28*c87b03e5Sespie #define SBITMAP_ELT_BITS ((unsigned) HOST_BITS_PER_WIDE_INT) 29*c87b03e5Sespie #define SBITMAP_ELT_TYPE unsigned HOST_WIDE_INT 30*c87b03e5Sespie 31*c87b03e5Sespie typedef struct simple_bitmap_def 32*c87b03e5Sespie { 33*c87b03e5Sespie unsigned int n_bits; /* Number of bits. */ 34*c87b03e5Sespie unsigned int size; /* Size in elements. */ 35*c87b03e5Sespie unsigned int bytes; /* Size in bytes. */ 36*c87b03e5Sespie SBITMAP_ELT_TYPE elms[1]; /* The elements. */ 37*c87b03e5Sespie } *sbitmap; 38*c87b03e5Sespie 39*c87b03e5Sespie typedef SBITMAP_ELT_TYPE *sbitmap_ptr; 40*c87b03e5Sespie 41*c87b03e5Sespie /* Return the set size needed for N elements. */ 42*c87b03e5Sespie #define SBITMAP_SET_SIZE(N) (((N) + SBITMAP_ELT_BITS - 1) / SBITMAP_ELT_BITS) 43*c87b03e5Sespie 44*c87b03e5Sespie /* Set bit number bitno in the bitmap. */ 45*c87b03e5Sespie #define SET_BIT(BITMAP, BITNO) \ 46*c87b03e5Sespie ((BITMAP)->elms [(BITNO) / SBITMAP_ELT_BITS] \ 47*c87b03e5Sespie |= (SBITMAP_ELT_TYPE) 1 << (BITNO) % SBITMAP_ELT_BITS) 48*c87b03e5Sespie 49*c87b03e5Sespie /* Test if bit number bitno in the bitmap is set. */ 50*c87b03e5Sespie #define TEST_BIT(BITMAP, BITNO) \ 51*c87b03e5Sespie ((BITMAP)->elms [(BITNO) / SBITMAP_ELT_BITS] >> (BITNO) % SBITMAP_ELT_BITS & 1) 52*c87b03e5Sespie 53*c87b03e5Sespie /* Reset bit number bitno in the bitmap. */ 54*c87b03e5Sespie #define RESET_BIT(BITMAP, BITNO) \ 55*c87b03e5Sespie ((BITMAP)->elms [(BITNO) / SBITMAP_ELT_BITS] \ 56*c87b03e5Sespie &= ~((SBITMAP_ELT_TYPE) 1 << (BITNO) % SBITMAP_ELT_BITS)) 57*c87b03e5Sespie 58*c87b03e5Sespie /* Loop over all elements of SBITSET, starting with MIN. */ 59*c87b03e5Sespie #define EXECUTE_IF_SET_IN_SBITMAP(SBITMAP, MIN, N, CODE) \ 60*c87b03e5Sespie do { \ 61*c87b03e5Sespie unsigned int word_num_; \ 62*c87b03e5Sespie unsigned int bit_num_ = (MIN) % (unsigned int) SBITMAP_ELT_BITS; \ 63*c87b03e5Sespie unsigned int size_ = (SBITMAP)->size; \ 64*c87b03e5Sespie SBITMAP_ELT_TYPE *ptr_ = (SBITMAP)->elms; \ 65*c87b03e5Sespie \ 66*c87b03e5Sespie for (word_num_ = (MIN) / (unsigned int) SBITMAP_ELT_BITS; \ 67*c87b03e5Sespie word_num_ < size_; word_num_++, bit_num_ = 0) \ 68*c87b03e5Sespie { \ 69*c87b03e5Sespie SBITMAP_ELT_TYPE word_ = ptr_[word_num_]; \ 70*c87b03e5Sespie \ 71*c87b03e5Sespie if (word_ != 0) \ 72*c87b03e5Sespie for (; bit_num_ < SBITMAP_ELT_BITS; bit_num_++) \ 73*c87b03e5Sespie { \ 74*c87b03e5Sespie SBITMAP_ELT_TYPE _mask = (SBITMAP_ELT_TYPE) 1 << bit_num_; \ 75*c87b03e5Sespie \ 76*c87b03e5Sespie if ((word_ & _mask) != 0) \ 77*c87b03e5Sespie { \ 78*c87b03e5Sespie word_ &= ~ _mask; \ 79*c87b03e5Sespie (N) = word_num_ * SBITMAP_ELT_BITS + bit_num_; \ 80*c87b03e5Sespie CODE; \ 81*c87b03e5Sespie if (word_ == 0) \ 82*c87b03e5Sespie break; \ 83*c87b03e5Sespie } \ 84*c87b03e5Sespie } \ 85*c87b03e5Sespie } \ 86*c87b03e5Sespie } while (0) 87*c87b03e5Sespie 88*c87b03e5Sespie #define EXECUTE_IF_SET_IN_SBITMAP_REV(SBITMAP, N, CODE) \ 89*c87b03e5Sespie do { \ 90*c87b03e5Sespie unsigned int word_num_; \ 91*c87b03e5Sespie unsigned int bit_num_; \ 92*c87b03e5Sespie unsigned int size_ = (SBITMAP)->size; \ 93*c87b03e5Sespie SBITMAP_ELT_TYPE *ptr_ = (SBITMAP)->elms; \ 94*c87b03e5Sespie \ 95*c87b03e5Sespie for (word_num_ = size_; word_num_ > 0; word_num_--) \ 96*c87b03e5Sespie { \ 97*c87b03e5Sespie SBITMAP_ELT_TYPE word_ = ptr_[word_num_ - 1]; \ 98*c87b03e5Sespie \ 99*c87b03e5Sespie if (word_ != 0) \ 100*c87b03e5Sespie for (bit_num_ = SBITMAP_ELT_BITS; bit_num_ > 0; bit_num_--) \ 101*c87b03e5Sespie { \ 102*c87b03e5Sespie SBITMAP_ELT_TYPE _mask = (SBITMAP_ELT_TYPE)1 << (bit_num_ - 1);\ 103*c87b03e5Sespie \ 104*c87b03e5Sespie if ((word_ & _mask) != 0) \ 105*c87b03e5Sespie { \ 106*c87b03e5Sespie word_ &= ~ _mask; \ 107*c87b03e5Sespie (N) = (word_num_ - 1) * SBITMAP_ELT_BITS + bit_num_ - 1;\ 108*c87b03e5Sespie CODE; \ 109*c87b03e5Sespie if (word_ == 0) \ 110*c87b03e5Sespie break; \ 111*c87b03e5Sespie } \ 112*c87b03e5Sespie } \ 113*c87b03e5Sespie } \ 114*c87b03e5Sespie } while (0) 115*c87b03e5Sespie 116*c87b03e5Sespie #define sbitmap_free(MAP) free(MAP) 117*c87b03e5Sespie #define sbitmap_vector_free(VEC) free(VEC) 118*c87b03e5Sespie 119*c87b03e5Sespie struct int_list; 120*c87b03e5Sespie 121*c87b03e5Sespie extern void dump_sbitmap PARAMS ((FILE *, sbitmap)); 122*c87b03e5Sespie extern void dump_sbitmap_file PARAMS ((FILE *, sbitmap)); 123*c87b03e5Sespie extern void dump_sbitmap_vector PARAMS ((FILE *, const char *, 124*c87b03e5Sespie const char *, sbitmap *, 125*c87b03e5Sespie int)); 126*c87b03e5Sespie extern sbitmap sbitmap_alloc PARAMS ((unsigned int)); 127*c87b03e5Sespie extern sbitmap *sbitmap_vector_alloc PARAMS ((unsigned int, unsigned int)); 128*c87b03e5Sespie extern sbitmap sbitmap_resize PARAMS ((sbitmap, unsigned int, int)); 129*c87b03e5Sespie extern void sbitmap_copy PARAMS ((sbitmap, sbitmap)); 130*c87b03e5Sespie extern int sbitmap_equal PARAMS ((sbitmap, sbitmap)); 131*c87b03e5Sespie extern void sbitmap_zero PARAMS ((sbitmap)); 132*c87b03e5Sespie extern void sbitmap_ones PARAMS ((sbitmap)); 133*c87b03e5Sespie extern void sbitmap_vector_zero PARAMS ((sbitmap *, unsigned int)); 134*c87b03e5Sespie extern void sbitmap_vector_ones PARAMS ((sbitmap *, unsigned int)); 135*c87b03e5Sespie 136*c87b03e5Sespie extern void sbitmap_union_of_diff PARAMS ((sbitmap, sbitmap, sbitmap, 137*c87b03e5Sespie sbitmap)); 138*c87b03e5Sespie extern bool sbitmap_union_of_diff_cg PARAMS ((sbitmap, sbitmap, sbitmap, 139*c87b03e5Sespie sbitmap)); 140*c87b03e5Sespie extern void sbitmap_difference PARAMS ((sbitmap, sbitmap, sbitmap)); 141*c87b03e5Sespie extern void sbitmap_not PARAMS ((sbitmap, sbitmap)); 142*c87b03e5Sespie extern void sbitmap_a_or_b_and_c PARAMS ((sbitmap, sbitmap, sbitmap, 143*c87b03e5Sespie sbitmap)); 144*c87b03e5Sespie extern bool sbitmap_a_or_b_and_c_cg PARAMS ((sbitmap, sbitmap, sbitmap, 145*c87b03e5Sespie sbitmap)); 146*c87b03e5Sespie extern void sbitmap_a_and_b_or_c PARAMS ((sbitmap, sbitmap, sbitmap, 147*c87b03e5Sespie sbitmap)); 148*c87b03e5Sespie extern bool sbitmap_a_and_b_or_c_cg PARAMS ((sbitmap, sbitmap, sbitmap, 149*c87b03e5Sespie sbitmap)); 150*c87b03e5Sespie extern void sbitmap_a_and_b PARAMS ((sbitmap, sbitmap, sbitmap)); 151*c87b03e5Sespie extern bool sbitmap_a_and_b_cg PARAMS ((sbitmap, sbitmap, sbitmap)); 152*c87b03e5Sespie extern void sbitmap_a_or_b PARAMS ((sbitmap, sbitmap, sbitmap)); 153*c87b03e5Sespie extern bool sbitmap_a_or_b_cg PARAMS ((sbitmap, sbitmap, sbitmap)); 154*c87b03e5Sespie extern void sbitmap_a_xor_b PARAMS ((sbitmap, sbitmap, sbitmap)); 155*c87b03e5Sespie extern bool sbitmap_a_xor_b_cg PARAMS ((sbitmap, sbitmap, sbitmap)); 156*c87b03e5Sespie extern bool sbitmap_a_subset_b_p PARAMS ((sbitmap, sbitmap)); 157*c87b03e5Sespie 158*c87b03e5Sespie extern int sbitmap_first_set_bit PARAMS ((sbitmap)); 159*c87b03e5Sespie extern int sbitmap_last_set_bit PARAMS ((sbitmap)); 160*c87b03e5Sespie 161*c87b03e5Sespie extern void sbitmap_intersect_of_predsucc PARAMS ((sbitmap, sbitmap *, 162*c87b03e5Sespie int, struct int_list **)); 163*c87b03e5Sespie #define sbitmap_intersect_of_predecessors sbitmap_intersect_of_predsucc 164*c87b03e5Sespie #define sbitmap_intersect_of_successors sbitmap_intersect_of_predsucc 165*c87b03e5Sespie 166*c87b03e5Sespie extern void sbitmap_union_of_predsucc PARAMS ((sbitmap, sbitmap *, int, 167*c87b03e5Sespie struct int_list **)); 168*c87b03e5Sespie #define sbitmap_union_of_predecessors sbitmap_union_of_predsucc 169*c87b03e5Sespie #define sbitmap_union_of_successors sbitmap_union_of_predsucc 170*c87b03e5Sespie 171*c87b03e5Sespie /* Intersection and Union of preds/succs using the new flow graph 172*c87b03e5Sespie structure instead of the pred/succ arrays. */ 173*c87b03e5Sespie 174*c87b03e5Sespie extern void sbitmap_intersection_of_succs PARAMS ((sbitmap, sbitmap *, int)); 175*c87b03e5Sespie extern void sbitmap_intersection_of_preds PARAMS ((sbitmap, sbitmap *, int)); 176*c87b03e5Sespie extern void sbitmap_union_of_succs PARAMS ((sbitmap, sbitmap *, int)); 177*c87b03e5Sespie extern void sbitmap_union_of_preds PARAMS ((sbitmap, sbitmap *, int)); 178*c87b03e5Sespie 179*c87b03e5Sespie extern void debug_sbitmap PARAMS ((sbitmap)); 180*c87b03e5Sespie #endif /* ! GCC_SBITMAP_H */ 181