X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/7d7d6663698dd4cb27a695ada3fd09d141005e5e..e3c52a63624c102a41f60bc741294cd3f23ceb89:/lib/lbitset.c?ds=sidebyside diff --git a/lib/lbitset.c b/lib/lbitset.c index a405b8cf..9a6fc0ae 100644 --- a/lib/lbitset.c +++ b/lib/lbitset.c @@ -1,10 +1,10 @@ /* Functions to support link list bitsets. - Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz). - This program is free software; you can redistribute it and/or modify + This program 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 of the License, or + the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -13,15 +13,12 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -*/ + along with this program. If not, see . */ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif +#include #include "lbitset.h" + #include "obstack.h" #include #include @@ -41,7 +38,7 @@ /* Number of words to use for each element. The larger the value the greater the size of the cache and the shorter the time to find a given bit but the more memory wasted for sparse bitsets and the longer the time - to search for set bits. + to search for set bits. The routines that dominate timing profiles are lbitset_elt_find and lbitset_elt_link, especially when accessing the bits randomly. */ @@ -121,7 +118,7 @@ lbitset_elt_alloc (void) #define OBSTACK_CHUNK_FREE free #endif -#if !defined(__GNUC__) || (__GNUC__ < 2) +#if ! defined __GNUC__ || __GNUC__ < 2 #define __alignof__(type) 0 #endif @@ -363,6 +360,9 @@ lbitset_elt_find (bitset bset, bitset_windex windex, switch (mode) { + default: + abort (); + case LBITSET_FIND: return 0; @@ -376,9 +376,6 @@ lbitset_elt_find (bitset bset, bitset_windex windex, case LBITSET_SUBST: return &lbitset_zero_elts[0]; - - default: - abort (); } } @@ -888,18 +885,18 @@ lbitset_unused_clear (bitset dst) n_bits = BITSET_SIZE_ (dst); last_bit = n_bits % LBITSET_ELT_BITS; - + if (last_bit) { lbitset_elt *elt; bitset_windex windex; bitset_word *srcp; - + elt = LBITSET_TAIL (dst); srcp = elt->words; windex = n_bits / BITSET_WORD_BITS; - - srcp[windex - elt->index] &= ((bitset_word) 1 << last_bit) - 1; + + srcp[windex - elt->index] &= ((bitset_word) 1 << last_bit) - 1; windex++; for (; (windex - elt->index) < LBITSET_ELT_WORDS; windex++) @@ -1117,6 +1114,9 @@ lbitset_op3_cmp (bitset dst, bitset src1, bitset src2, enum bitset_ops op) dstp = dtmp->words; switch (op) { + default: + abort (); + case BITSET_OP_OR: for (i = 0; i < LBITSET_ELT_WORDS; i++, dstp++) { @@ -1168,9 +1168,6 @@ lbitset_op3_cmp (bitset dst, bitset src1, bitset src2, enum bitset_ops op) } } break; - - default: - abort (); } if (!lbitset_elt_zero_p (dtmp))