/* The mapping from bb to block. */
#define BB_TO_BLOCK(bb) (rgn_bb_table[current_blocks + (bb)])
-/* Bit vectors and bitset operations are needed for computations on
- the control flow graph. */
-
-typedef unsigned HOST_WIDE_INT *bitset;
typedef struct
{
int *first_member; /* Pointer to the list start in bitlst_table. */
static int bitlst_table_size;
static int *bitlst_table;
-static char bitset_member PARAMS ((bitset, int, int));
-static void extract_bitlst PARAMS ((bitset, int, int, bitlst *));
+static void extract_bitlst PARAMS ((sbitmap, bitlst *));
/* Target info declarations.
void debug_candidate PARAMS ((int));
void debug_candidates PARAMS ((int));
-/* Bit-set of bbs, where bit 'i' stands for bb 'i'. */
-typedef bitset bbset;
-
-/* Number of words of the bbset. */
-static int bbset_size;
-
-/* Dominators array: dom[i] contains the bbset of dominators of
+/* Dominators array: dom[i] contains the sbitmap of dominators of
bb i in the region. */
-static bbset *dom;
+static sbitmap *dom;
/* bb 0 is the only region entry. */
#define IS_RGN_ENTRY(bb) (!bb)
/* Is bb_src dominated by bb_trg. */
#define IS_DOMINATED(bb_src, bb_trg) \
-( bitset_member (dom[bb_src], bb_trg, bbset_size) )
+( TEST_BIT (dom[bb_src], bb_trg) )
/* Probability: Prob[i] is a float in [0, 1] which is the probability
of bb i relative to the region entry. */
prob[bb_trg])))
/* Bit-set of edges, where bit i stands for edge i. */
-typedef bitset edgeset;
+typedef sbitmap edgeset;
/* Number of edges in the region. */
static int rgn_nr_edges;
/* Array of size rgn_nr_edges. */
static int *rgn_edges;
-/* Number of words in an edgeset. */
-static int edgeset_size;
-
-/* Number of bits in an edgeset. */
-static int edgeset_bitsize;
/* Mapping from each edge in the graph to its number in the rgn. */
static int *edge_to_bit;
}
}
-/* BITSET macros for operations on the control flow graph. */
-
-/* Compute bitwise union of two bitsets. */
-#define BITSET_UNION(set1, set2, len) \
-do { bitset tp = set1, sp = set2; \
- int i; \
- for (i = 0; i < len; i++) \
- *(tp++) |= *(sp++); } while (0)
-
-/* Compute bitwise intersection of two bitsets. */
-#define BITSET_INTER(set1, set2, len) \
-do { bitset tp = set1, sp = set2; \
- int i; \
- for (i = 0; i < len; i++) \
- *(tp++) &= *(sp++); } while (0)
-
-/* Compute bitwise difference of two bitsets. */
-#define BITSET_DIFFER(set1, set2, len) \
-do { bitset tp = set1, sp = set2; \
- int i; \
- for (i = 0; i < len; i++) \
- *(tp++) &= ~*(sp++); } while (0)
-
-/* Inverts every bit of bitset 'set'. */
-#define BITSET_INVERT(set, len) \
-do { bitset tmpset = set; \
- int i; \
- for (i = 0; i < len; i++, tmpset++) \
- *tmpset = ~*tmpset; } while (0)
-
-/* Turn on the index'th bit in bitset set. */
-#define BITSET_ADD(set, index, len) \
-{ \
- if (index >= HOST_BITS_PER_WIDE_INT * len) \
- abort (); \
- else \
- set[index/HOST_BITS_PER_WIDE_INT] |= \
- ((unsigned HOST_WIDE_INT) 1) << (index % HOST_BITS_PER_WIDE_INT); \
-}
-
-/* Turn off the index'th bit in set. */
-#define BITSET_REMOVE(set, index, len) \
-{ \
- if (index >= HOST_BITS_PER_WIDE_INT * len) \
- abort (); \
- else \
- set[index/HOST_BITS_PER_WIDE_INT] &= \
- ~(((unsigned HOST_WIDE_INT) 1) << (index % HOST_BITS_PER_WIDE_INT)); \
-}
-
-/* Check if the index'th bit in bitset set is on. */
-
-static char
-bitset_member (set, index, len)
- bitset set;
- int index, len;
-{
- if (index >= HOST_BITS_PER_WIDE_INT * len)
- abort ();
- return ((set[index / HOST_BITS_PER_WIDE_INT] &
- ((unsigned HOST_WIDE_INT) 1) << (index % HOST_BITS_PER_WIDE_INT))
- ? 1 : 0);
-}
-
/* Translate a bit-set SET to a list BL of the bit-set members. */
static void
-extract_bitlst (set, len, bitlen, bl)
- bitset set;
- int len;
- int bitlen;
+extract_bitlst (set, bl)
+ sbitmap set;
bitlst *bl;
{
- int i, j, offset;
- unsigned HOST_WIDE_INT word;
+ int i;
/* bblst table space is reused in each call to extract_bitlst. */
bitlst_table_last = 0;
bl->nr_members = 0;
/* Iterate over each word in the bitset. */
- for (i = 0; i < len; i++)
- {
- word = set[i];
- offset = i * HOST_BITS_PER_WIDE_INT;
-
- /* Iterate over each bit in the word, but do not
- go beyond the end of the defined bits. */
- for (j = 0; offset < bitlen && word; j++)
- {
- if (word & 1)
- {
- bitlst_table[bitlst_table_last++] = offset;
- (bl->nr_members)++;
- }
- word >>= 1;
- ++offset;
- }
- }
+ EXECUTE_IF_SET_IN_SBITMAP (set, 0, i,
+ {
+ bitlst_table[bitlst_table_last++] = i;
+ (bl->nr_members)++;
+ });
}
prob[bb] = 0.0;
if (IS_RGN_ENTRY (bb))
{
- BITSET_ADD (dom[bb], 0, bbset_size);
+ SET_BIT (dom[bb], 0);
prob[bb] = 1.0;
return;
}
fst_in_edge = nxt_in_edge = IN_EDGES (BB_TO_BLOCK (bb));
/* Intialize dom[bb] to '111..1'. */
- BITSET_INVERT (dom[bb], bbset_size);
+ sbitmap_ones (dom[bb]);
do
{
pred = FROM_BLOCK (nxt_in_edge);
- BITSET_INTER (dom[bb], dom[BLOCK_TO_BB (pred)], bbset_size);
+ sbitmap_a_and_b (dom[bb], dom[bb], dom[BLOCK_TO_BB (pred)]);
+ sbitmap_a_or_b (ancestor_edges[bb], ancestor_edges[bb], ancestor_edges[BLOCK_TO_BB (pred)]);
- BITSET_UNION (ancestor_edges[bb], ancestor_edges[BLOCK_TO_BB (pred)],
- edgeset_size);
-
- BITSET_ADD (ancestor_edges[bb], EDGE_TO_BIT (nxt_in_edge), edgeset_size);
+ SET_BIT (ancestor_edges[bb], EDGE_TO_BIT (nxt_in_edge));
nr_out_edges = 1;
nr_rgn_out_edges = 0;
fst_out_edge = OUT_EDGES (pred);
nxt_out_edge = NEXT_OUT (fst_out_edge);
- BITSET_UNION (pot_split[bb], pot_split[BLOCK_TO_BB (pred)],
- edgeset_size);
- BITSET_ADD (pot_split[bb], EDGE_TO_BIT (fst_out_edge), edgeset_size);
+ sbitmap_a_or_b (pot_split[bb], pot_split[bb], pot_split[BLOCK_TO_BB (pred)]);
+
+ SET_BIT (pot_split[bb], EDGE_TO_BIT (fst_out_edge));
/* The successor doesn't belong in the region? */
if (CONTAINING_RGN (TO_BLOCK (fst_out_edge)) !=
if (CONTAINING_RGN (TO_BLOCK (nxt_out_edge)) !=
CONTAINING_RGN (BB_TO_BLOCK (bb)))
++nr_rgn_out_edges;
- BITSET_ADD (pot_split[bb], EDGE_TO_BIT (nxt_out_edge), edgeset_size);
+ SET_BIT (pot_split[bb], EDGE_TO_BIT (nxt_out_edge));
nxt_out_edge = NEXT_OUT (nxt_out_edge);
}
}
while (fst_in_edge != nxt_in_edge);
- BITSET_ADD (dom[bb], bb, bbset_size);
- BITSET_DIFFER (pot_split[bb], ancestor_edges[bb], edgeset_size);
+ SET_BIT (dom[bb], bb);
+ sbitmap_difference (pot_split[bb], pot_split[bb], ancestor_edges[bb]);
if (sched_verbose >= 2)
fprintf (sched_dump, ";; bb_prob(%d, %d) = %3d\n", bb, BB_TO_BLOCK (bb),
int bb_trg;
edgelst *bl;
{
- int es = edgeset_size;
- edgeset src = (edgeset) xcalloc (es, sizeof (HOST_WIDE_INT));
-
- while (es--)
- src[es] = (pot_split[bb_src])[es];
- BITSET_DIFFER (src, pot_split[bb_trg], edgeset_size);
- extract_bitlst (src, edgeset_size, edgeset_bitsize, bl);
- free (src);
+ sbitmap src = (edgeset) sbitmap_alloc (pot_split[bb_src]->n_bits);
+ sbitmap_copy (src, pot_split[bb_src]);
+
+ sbitmap_difference (src, src, pot_split[bb_trg]);
+ extract_bitlst (src, bl);
+ sbitmap_free (src);
}
/* Find the valid candidate-source-blocks for the target block TRG, compute
#define IS_REACHABLE(bb_from, bb_to) \
(bb_from == bb_to \
|| IS_RGN_ENTRY (bb_from) \
- || (bitset_member (ancestor_edges[bb_to], \
- EDGE_TO_BIT (IN_EDGES (BB_TO_BLOCK (bb_from))), \
- edgeset_size)))
+ || (TEST_BIT (ancestor_edges[bb_to], \
+ EDGE_TO_BIT (IN_EDGES (BB_TO_BLOCK (bb_from))))))
/* Non-zero iff the address is comprised from at most 1 register. */
#define CONST_BASED_ADDRESS_P(x) \
prob = (float *) xmalloc ((current_nr_blocks) * sizeof (float));
- bbset_size = current_nr_blocks / HOST_BITS_PER_WIDE_INT + 1;
- dom = (bbset *) xmalloc (current_nr_blocks * sizeof (bbset));
- for (i = 0; i < current_nr_blocks; i++)
- dom[i] = (bbset) xcalloc (bbset_size, sizeof (HOST_WIDE_INT));
-
+ dom = sbitmap_vector_alloc (current_nr_blocks, current_nr_blocks);
+ sbitmap_vector_zero (dom, current_nr_blocks);
/* Edge to bit. */
rgn_nr_edges = 0;
edge_to_bit = (int *) xmalloc (nr_edges * sizeof (int));
rgn_edges[rgn_nr_edges++] = i;
/* Split edges. */
- edgeset_size = rgn_nr_edges / HOST_BITS_PER_WIDE_INT + 1;
- edgeset_bitsize = rgn_nr_edges;
- pot_split = (edgeset *) xmalloc (current_nr_blocks * sizeof (edgeset));
- ancestor_edges
- = (edgeset *) xmalloc (current_nr_blocks * sizeof (edgeset));
- for (i = 0; i < current_nr_blocks; i++)
- {
- pot_split[i] =
- (edgeset) xcalloc (edgeset_size, sizeof (HOST_WIDE_INT));
- ancestor_edges[i] =
- (edgeset) xcalloc (edgeset_size, sizeof (HOST_WIDE_INT));
- }
+ pot_split = sbitmap_vector_alloc (current_nr_blocks, rgn_nr_edges);
+ sbitmap_vector_zero (pot_split, current_nr_blocks);
+ ancestor_edges = sbitmap_vector_alloc (current_nr_blocks, rgn_nr_edges);
+ sbitmap_vector_zero (ancestor_edges, current_nr_blocks);
/* Compute probabilities, dominators, split_edges. */
for (bb = 0; bb < current_nr_blocks; bb++)
if (current_nr_blocks > 1)
{
- int i;
-
free (prob);
- for (i = 0; i < current_nr_blocks; ++i)
- {
- free (dom[i]);
- free (pot_split[i]);
- free (ancestor_edges[i]);
- }
- free (dom);
+ sbitmap_vector_free (dom);
+ sbitmap_vector_free (pot_split);
+ sbitmap_vector_free (ancestor_edges);
free (edge_to_bit);
free (rgn_edges);
- free (pot_split);
- free (ancestor_edges);
}
}
projects / gcc.git / commitdiff