From e326eeb5e8a6bc39b3a411685873f0966989bed3 Mon Sep 17 00:00:00 2001 From: "Kaveh R. Ghazi" Date: Wed, 25 Jul 2007 19:38:45 +0000 Subject: bitmap.c (hash_descriptor, [...]): Constify. * bitmap.c (hash_descriptor, eq_descriptor, bitmap_element_zerop, bitmap_copy, bitmap_clear_bit, popcount_table, bitmap_count_bits, bitmap_first_set_bit, bitmap_and, bitmap_and_into, bitmap_elt_copy, bitmap_and_compl, bitmap_and_compl_into, bitmap_compl_and_into, bitmap_elt_ior, bitmap_ior, bitmap_ior_into, bitmap_xor, bitmap_xor_into, bitmap_equal_p, bitmap_intersect_p, bitmap_intersect_compl_p, bitmap_ior_and_compl, bitmap_ior_and_compl_into, debug_bitmap_file, debug_bitmap, bitmap_print, bitmap_hash): Constify. * bitmap.h (bitmap_copy, bitmap_equal_p, bitmap_intersect_p, bitmap_intersect_compl_p, bitmap_count_bits, bitmap_and, bitmap_and_into, bitmap_and_compl, bitmap_and_compl_into, bitmap_compl_and_into, bitmap_ior, bitmap_ior_into, bitmap_xor, bitmap_xor_into, bitmap_ior_and_compl, bitmap_ior_and_compl_into, debug_bitmap, debug_bitmap_file, bitmap_print, bitmap_first_set_bit, bitmap_hash, bmp_iter_set_init, bmp_iter_and_init, bmp_iter_and_compl_init): Likewise. From-SVN: r126928 --- gcc/bitmap.c | 122 ++++++++++++++++++++++++++++++----------------------------- 1 file changed, 62 insertions(+), 60 deletions(-) (limited to 'gcc/bitmap.c') diff --git a/gcc/bitmap.c b/gcc/bitmap.c index 740a883..1ab977f 100644 --- a/gcc/bitmap.c +++ b/gcc/bitmap.c @@ -52,7 +52,7 @@ static htab_t bitmap_desc_hash; static hashval_t hash_descriptor (const void *p) { - const struct bitmap_descriptor *d = p; + const struct bitmap_descriptor *const d = p; return htab_hash_pointer (d->file) + d->line; } struct loc @@ -64,8 +64,8 @@ struct loc static int eq_descriptor (const void *p1, const void *p2) { - const struct bitmap_descriptor *d = p1; - const struct loc *l = p2; + const struct bitmap_descriptor *const d = p1; + const struct loc *const l = p2; return d->file == l->file && d->function == l->function && d->line == l->line; } @@ -126,7 +126,7 @@ static GTY((deletable)) bitmap_element *bitmap_ggc_free; /* Freelist of static void bitmap_elem_to_freelist (bitmap, bitmap_element *); static void bitmap_element_free (bitmap, bitmap_element *); static bitmap_element *bitmap_element_allocate (bitmap); -static int bitmap_element_zerop (bitmap_element *); +static int bitmap_element_zerop (const bitmap_element *); static void bitmap_element_link (bitmap, bitmap_element *); static bitmap_element *bitmap_elt_insert_after (bitmap, bitmap_element *, unsigned int); static void bitmap_elt_clear_from (bitmap, bitmap_element *); @@ -390,7 +390,7 @@ bitmap_obstack_free (bitmap map) /* Return nonzero if all bits in an element are zero. */ static inline int -bitmap_element_zerop (bitmap_element *element) +bitmap_element_zerop (const bitmap_element *element) { #if BITMAP_ELEMENT_WORDS == 2 return (element->bits[0] | element->bits[1]) == 0; @@ -498,9 +498,10 @@ bitmap_elt_insert_after (bitmap head, bitmap_element *elt, unsigned int indx) /* Copy a bitmap to another bitmap. */ void -bitmap_copy (bitmap to, bitmap from) +bitmap_copy (bitmap to, const_bitmap from) { - bitmap_element *from_ptr, *to_ptr = 0; + const bitmap_element *from_ptr; + bitmap_element *to_ptr = 0; bitmap_clear (to); @@ -588,7 +589,7 @@ bitmap_find_bit (bitmap head, unsigned int bit) void bitmap_clear_bit (bitmap head, int bit) { - bitmap_element *ptr = bitmap_find_bit (head, bit); + bitmap_element *const ptr = bitmap_find_bit (head, bit); if (ptr != 0) { @@ -644,7 +645,7 @@ bitmap_bit_p (bitmap head, int bit) #if GCC_VERSION < 3400 /* Table of number of set bits in a character, indexed by value of char. */ -static unsigned char popcount_table[] = +static const unsigned char popcount_table[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5, 1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6, @@ -671,10 +672,10 @@ bitmap_popcount (BITMAP_WORD a) /* Count the number of bits set in the bitmap, and return it. */ unsigned long -bitmap_count_bits (bitmap a) +bitmap_count_bits (const_bitmap a) { unsigned long count = 0; - bitmap_element *elt; + const bitmap_element *elt; unsigned ix; for (elt = a->first; elt; elt = elt->next) @@ -699,9 +700,9 @@ bitmap_count_bits (bitmap a) bitmap must be non-empty. */ unsigned -bitmap_first_set_bit (bitmap a) +bitmap_first_set_bit (const_bitmap a) { - bitmap_element *elt = a->first; + const bitmap_element *elt = a->first; unsigned bit_no; BITMAP_WORD word; unsigned ix; @@ -750,11 +751,11 @@ bitmap_first_set_bit (bitmap a) /* DST = A & B. */ void -bitmap_and (bitmap dst, bitmap a, bitmap b) +bitmap_and (bitmap dst, const_bitmap a, const_bitmap b) { bitmap_element *dst_elt = dst->first; - bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *a_elt = a->first; + const bitmap_element *b_elt = b->first; bitmap_element *dst_prev = NULL; gcc_assert (dst != a && dst != b); @@ -808,10 +809,10 @@ bitmap_and (bitmap dst, bitmap a, bitmap b) /* A &= B. */ void -bitmap_and_into (bitmap a, bitmap b) +bitmap_and_into (bitmap a, const_bitmap b) { bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *b_elt = b->first; bitmap_element *next; if (a == b) @@ -859,7 +860,7 @@ bitmap_and_into (bitmap a, bitmap b) static inline bool bitmap_elt_copy (bitmap dst, bitmap_element *dst_elt, bitmap_element *dst_prev, - bitmap_element *src_elt, bool changed) + const bitmap_element *src_elt, bool changed) { if (!changed && dst_elt && dst_elt->indx == src_elt->indx) { @@ -889,11 +890,11 @@ bitmap_elt_copy (bitmap dst, bitmap_element *dst_elt, bitmap_element *dst_prev, /* DST = A & ~B */ bool -bitmap_and_compl (bitmap dst, bitmap a, bitmap b) +bitmap_and_compl (bitmap dst, const_bitmap a, const_bitmap b) { bitmap_element *dst_elt = dst->first; - bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *a_elt = a->first; + const bitmap_element *b_elt = b->first; bitmap_element *dst_prev = NULL; bitmap_element **dst_prev_pnext = &dst->first; bool changed = false; @@ -1002,10 +1003,10 @@ bitmap_and_compl (bitmap dst, bitmap a, bitmap b) /* A &= ~B. Returns true if A changes */ bool -bitmap_and_compl_into (bitmap a, bitmap b) +bitmap_and_compl_into (bitmap a, const_bitmap b) { bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *b_elt = b->first; bitmap_element *next; BITMAP_WORD changed = 0; @@ -1282,10 +1283,10 @@ bitmap_clear_range (bitmap head, unsigned int start, unsigned int count) /* A = ~A & B. */ void -bitmap_compl_and_into (bitmap a, bitmap b) +bitmap_compl_and_into (bitmap a, const_bitmap b) { bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *b_elt = b->first; bitmap_element *a_prev = NULL; bitmap_element *next; @@ -1355,7 +1356,7 @@ bitmap_compl_and_into (bitmap a, bitmap b) static inline bool bitmap_elt_ior (bitmap dst, bitmap_element *dst_elt, bitmap_element *dst_prev, - bitmap_element *a_elt, bitmap_element *b_elt, + const bitmap_element *a_elt, const bitmap_element *b_elt, bool changed) { gcc_assert (a_elt || b_elt); @@ -1394,7 +1395,7 @@ bitmap_elt_ior (bitmap dst, bitmap_element *dst_elt, bitmap_element *dst_prev, else { /* Copy a single element. */ - bitmap_element *src; + const bitmap_element *src; if (!b_elt || (a_elt && a_elt->indx < b_elt->indx)) src = a_elt; @@ -1411,11 +1412,11 @@ bitmap_elt_ior (bitmap dst, bitmap_element *dst_elt, bitmap_element *dst_prev, /* DST = A | B. Return true if DST changes. */ bool -bitmap_ior (bitmap dst, bitmap a, bitmap b) +bitmap_ior (bitmap dst, const_bitmap a, const_bitmap b) { bitmap_element *dst_elt = dst->first; - bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *a_elt = a->first; + const bitmap_element *b_elt = b->first; bitmap_element *dst_prev = NULL; bitmap_element **dst_prev_pnext = &dst->first; bool changed = false; @@ -1458,10 +1459,10 @@ bitmap_ior (bitmap dst, bitmap a, bitmap b) /* A |= B. Return true if A changes. */ bool -bitmap_ior_into (bitmap a, bitmap b) +bitmap_ior_into (bitmap a, const_bitmap b) { bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *b_elt = b->first; bitmap_element *a_prev = NULL; bitmap_element **a_prev_pnext = &a->first; bool changed = false; @@ -1497,11 +1498,11 @@ bitmap_ior_into (bitmap a, bitmap b) /* DST = A ^ B */ void -bitmap_xor (bitmap dst, bitmap a, bitmap b) +bitmap_xor (bitmap dst, const_bitmap a, const_bitmap b) { bitmap_element *dst_elt = dst->first; - bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *a_elt = a->first; + const bitmap_element *b_elt = b->first; bitmap_element *dst_prev = NULL; gcc_assert (dst != a && dst != b); @@ -1541,7 +1542,7 @@ bitmap_xor (bitmap dst, bitmap a, bitmap b) else { /* Copy a single element. */ - bitmap_element *src; + const bitmap_element *src; if (!b_elt || (a_elt && a_elt->indx < b_elt->indx)) { @@ -1574,10 +1575,10 @@ bitmap_xor (bitmap dst, bitmap a, bitmap b) /* A ^= B */ void -bitmap_xor_into (bitmap a, bitmap b) +bitmap_xor_into (bitmap a, const_bitmap b) { bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; + const bitmap_element *b_elt = b->first; bitmap_element *a_prev = NULL; if (a == b) @@ -1633,10 +1634,10 @@ bitmap_xor_into (bitmap a, bitmap b) occurs in practice. */ bool -bitmap_equal_p (bitmap a, bitmap b) +bitmap_equal_p (const_bitmap a, const_bitmap b) { - bitmap_element *a_elt; - bitmap_element *b_elt; + const bitmap_element *a_elt; + const bitmap_element *b_elt; unsigned ix; for (a_elt = a->first, b_elt = b->first; @@ -1655,10 +1656,10 @@ bitmap_equal_p (bitmap a, bitmap b) /* Return true if A AND B is not empty. */ bool -bitmap_intersect_p (bitmap a, bitmap b) +bitmap_intersect_p (const_bitmap a, const_bitmap b) { - bitmap_element *a_elt; - bitmap_element *b_elt; + const bitmap_element *a_elt; + const bitmap_element *b_elt; unsigned ix; for (a_elt = a->first, b_elt = b->first; @@ -1683,10 +1684,10 @@ bitmap_intersect_p (bitmap a, bitmap b) /* Return true if A AND NOT B is not empty. */ bool -bitmap_intersect_compl_p (bitmap a, bitmap b) +bitmap_intersect_compl_p (const_bitmap a, const_bitmap b) { - bitmap_element *a_elt; - bitmap_element *b_elt; + const bitmap_element *a_elt; + const bitmap_element *b_elt; unsigned ix; for (a_elt = a->first, b_elt = b->first; a_elt && b_elt;) @@ -1711,14 +1712,14 @@ bitmap_intersect_compl_p (bitmap a, bitmap b) /* DST = A | (FROM1 & ~FROM2). Return true if DST changes. */ bool -bitmap_ior_and_compl (bitmap dst, bitmap a, bitmap b, bitmap kill) +bitmap_ior_and_compl (bitmap dst, const_bitmap a, const_bitmap b, const_bitmap kill) { bool changed = false; bitmap_element *dst_elt = dst->first; - bitmap_element *a_elt = a->first; - bitmap_element *b_elt = b->first; - bitmap_element *kill_elt = kill->first; + const bitmap_element *a_elt = a->first; + const bitmap_element *b_elt = b->first; + const bitmap_element *kill_elt = kill->first; bitmap_element *dst_prev = NULL; bitmap_element **dst_prev_pnext = &dst->first; @@ -1815,7 +1816,7 @@ bitmap_ior_and_compl (bitmap dst, bitmap a, bitmap b, bitmap kill) /* A |= (FROM1 & ~FROM2). Return true if A changes. */ bool -bitmap_ior_and_compl_into (bitmap a, bitmap from1, bitmap from2) +bitmap_ior_and_compl_into (bitmap a, const_bitmap from1, const_bitmap from2) { bitmap_head tmp; bool changed; @@ -1832,9 +1833,9 @@ bitmap_ior_and_compl_into (bitmap a, bitmap from1, bitmap from2) /* Debugging function to print out the contents of a bitmap. */ void -debug_bitmap_file (FILE *file, bitmap head) +debug_bitmap_file (FILE *file, const_bitmap head) { - bitmap_element *ptr; + const bitmap_element *ptr; fprintf (file, "\nfirst = %p current = %p indx = %u\n", (void *) head->first, (void *) head->current, head->indx); @@ -1844,7 +1845,8 @@ debug_bitmap_file (FILE *file, bitmap head) unsigned int i, j, col = 26; fprintf (file, "\t%p next = %p prev = %p indx = %u\n\t\tbits = {", - (void*) ptr, (void*) ptr->next, (void*) ptr->prev, ptr->indx); + (const void*) ptr, (const void*) ptr->next, + (const void*) ptr->prev, ptr->indx); for (i = 0; i < BITMAP_ELEMENT_WORDS; i++) for (j = 0; j < BITMAP_WORD_BITS; j++) @@ -1869,7 +1871,7 @@ debug_bitmap_file (FILE *file, bitmap head) of a bitmap. */ void -debug_bitmap (bitmap head) +debug_bitmap (const_bitmap head) { debug_bitmap_file (stdout, head); } @@ -1878,7 +1880,7 @@ debug_bitmap (bitmap head) it does not print anything but the bits. */ void -bitmap_print (FILE *file, bitmap head, const char *prefix, const char *suffix) +bitmap_print (FILE *file, const_bitmap head, const char *prefix, const char *suffix) { const char *comma = ""; unsigned i; @@ -1953,9 +1955,9 @@ dump_bitmap_statistics (void) /* Compute hash of bitmap (for purposes of hashing). */ hashval_t -bitmap_hash (bitmap head) +bitmap_hash (const_bitmap head) { - bitmap_element *ptr; + const bitmap_element *ptr; BITMAP_WORD hash = 0; int ix; -- cgit v1.1