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, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#include "config.h"
#include "system.h"
#include "ggc.h"
#include "alloc-pool.h"
#include "flags.h"
+#include "tree-pass.h"
/* Holds the interesting trailing notes for the function. */
rtx cfg_layout_function_footer, cfg_layout_function_header;
rtx end;
if (PREV_INSN (BB_HEAD (bb)) && next_insn != BB_HEAD (bb))
- bb->rbi->header = unlink_insn_chain (next_insn,
+ bb->il.rtl->header = unlink_insn_chain (next_insn,
PREV_INSN (BB_HEAD (bb)));
end = skip_insns_after_block (bb);
if (NEXT_INSN (BB_END (bb)) && BB_END (bb) != end)
- bb->rbi->footer = unlink_insn_chain (NEXT_INSN (BB_END (bb)), end);
+ bb->il.rtl->footer = unlink_insn_chain (NEXT_INSN (BB_END (bb)), end);
next_insn = NEXT_INSN (BB_END (bb));
}
cfg_layout_function_footer = unlink_insn_chain (cfg_layout_function_footer, get_last_insn ());
}
\f
+DEF_VEC_I(int);
+DEF_VEC_ALLOC_I(int,heap);
+
/* Data structures representing mapping of INSN_LOCATOR into scope blocks, line
numbers and files. In order to be GGC friendly we need to use separate
varrays. This also slightly improve the memory locality in binary search.
block_locators_blocks contains the scope block that is used for all insn
locator greater than corresponding block_locators_locs value and smaller
than the following one. Similarly for the other properties. */
-static GTY(()) varray_type block_locators_locs;
+static VEC(int,heap) *block_locators_locs;
static GTY(()) VEC(tree,gc) *block_locators_blocks;
-static GTY(()) varray_type line_locators_locs;
-static GTY(()) varray_type line_locators_lines;
-static GTY(()) varray_type file_locators_locs;
+static VEC(int,heap) *line_locators_locs;
+static VEC(int,heap) *line_locators_lines;
+static VEC(int,heap) *file_locators_locs;
static GTY(()) varray_type file_locators_files;
int prologue_locator;
int epilogue_locator;
prologue_locator = epilogue_locator = 0;
- VARRAY_INT_INIT (block_locators_locs, 32, "block_locators_locs");
+ block_locators_locs = VEC_alloc (int, heap, 32);
block_locators_blocks = VEC_alloc (tree, gc, 32);
- VARRAY_INT_INIT (line_locators_locs, 32, "line_locators_locs");
- VARRAY_INT_INIT (line_locators_lines, 32, "line_locators_lines");
- VARRAY_INT_INIT (file_locators_locs, 32, "file_locators_locs");
+ line_locators_locs = VEC_alloc (int, heap, 32);
+ line_locators_lines = VEC_alloc (int, heap, 32);
+ file_locators_locs = VEC_alloc (int, heap, 32);
VARRAY_CHAR_PTR_INIT (file_locators_files, 32, "file_locators_files");
for (insn = get_insns (); insn; insn = next)
if (last_block != block)
{
loc++;
- VARRAY_PUSH_INT (block_locators_locs, loc);
+ VEC_safe_push (int, heap, block_locators_locs, loc);
VEC_safe_push (tree, gc, block_locators_blocks, block);
last_block = block;
}
if (last_line_number != line_number)
{
loc++;
- VARRAY_PUSH_INT (line_locators_locs, loc);
- VARRAY_PUSH_INT (line_locators_lines, line_number);
+ VEC_safe_push (int, heap, line_locators_locs, loc);
+ VEC_safe_push (int, heap, line_locators_lines, line_number);
last_line_number = line_number;
}
if (last_file_name != file_name)
{
loc++;
- VARRAY_PUSH_INT (file_locators_locs, loc);
+ VEC_safe_push (int, heap, file_locators_locs, loc);
VARRAY_PUSH_CHAR_PTR (file_locators_files, (char *) file_name);
last_file_name = file_name;
}
free_block_changes ();
}
+struct tree_opt_pass pass_insn_locators_initialize =
+{
+ "locators", /* name */
+ NULL, /* gate */
+ insn_locators_initialize, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ 0, /* tv_id */
+ 0, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ TODO_dump_func, /* todo_flags_finish */
+ 0 /* letter */
+};
+
+
/* For each lexical block, set BLOCK_NUMBER to the depth at which it is
found in the block tree. */
static tree
insn_scope (rtx insn)
{
- int max = VARRAY_ACTIVE_SIZE (block_locators_locs);
+ int max = VEC_length (int, block_locators_locs);
int min = 0;
int loc = INSN_LOCATOR (insn);
while (1)
{
int pos = (min + max) / 2;
- int tmp = VARRAY_INT (block_locators_locs, pos);
+ int tmp = VEC_index (int, block_locators_locs, pos);
if (tmp <= loc && min != pos)
min = pos;
int
locator_line (int loc)
{
- int max = VARRAY_ACTIVE_SIZE (line_locators_locs);
+ int max = VEC_length (int, line_locators_locs);
int min = 0;
if (!max || !loc)
while (1)
{
int pos = (min + max) / 2;
- int tmp = VARRAY_INT (line_locators_locs, pos);
+ int tmp = VEC_index (int, line_locators_locs, pos);
if (tmp <= loc && min != pos)
min = pos;
break;
}
}
- return VARRAY_INT (line_locators_lines, min);
+ return VEC_index (int, line_locators_lines, min);
}
/* Return line number of the statement that produced this insn. */
const char *
locator_file (int loc)
{
- int max = VARRAY_ACTIVE_SIZE (file_locators_locs);
+ int max = VEC_length (int, file_locators_locs);
int min = 0;
if (!max || !loc)
while (1)
{
int pos = (min + max) / 2;
- int tmp = VARRAY_INT (file_locators_locs, pos);
+ int tmp = VEC_index (int, file_locators_locs, pos);
if (tmp <= loc && min != pos)
min = pos;
for (bb = ENTRY_BLOCK_PTR->next_bb, index = 0;
bb != 0;
- bb = bb->rbi->next, index++)
+ bb = bb->aux, index++)
{
- if (bb->rbi->header)
+ if (bb->il.rtl->header)
{
if (insn)
- NEXT_INSN (insn) = bb->rbi->header;
+ NEXT_INSN (insn) = bb->il.rtl->header;
else
- set_first_insn (bb->rbi->header);
- PREV_INSN (bb->rbi->header) = insn;
- insn = bb->rbi->header;
+ set_first_insn (bb->il.rtl->header);
+ PREV_INSN (bb->il.rtl->header) = insn;
+ insn = bb->il.rtl->header;
while (NEXT_INSN (insn))
insn = NEXT_INSN (insn);
}
set_first_insn (BB_HEAD (bb));
PREV_INSN (BB_HEAD (bb)) = insn;
insn = BB_END (bb);
- if (bb->rbi->footer)
+ if (bb->il.rtl->footer)
{
- NEXT_INSN (insn) = bb->rbi->footer;
- PREV_INSN (bb->rbi->footer) = insn;
+ NEXT_INSN (insn) = bb->il.rtl->footer;
+ PREV_INSN (bb->il.rtl->footer) = insn;
while (NEXT_INSN (insn))
insn = NEXT_INSN (insn);
}
/* Now add jumps and labels as needed to match the blocks new
outgoing edges. */
- for (bb = ENTRY_BLOCK_PTR->next_bb; bb ; bb = bb->rbi->next)
+ for (bb = ENTRY_BLOCK_PTR->next_bb; bb ; bb = bb->aux)
{
edge e_fall, e_taken, e;
rtx bb_end_insn;
if (any_condjump_p (bb_end_insn))
{
/* If the old fallthru is still next, nothing to do. */
- if (bb->rbi->next == e_fall->dest
+ if (bb->aux == e_fall->dest
|| e_fall->dest == EXIT_BLOCK_PTR)
continue;
such as happens at the very end of a function, then we'll
need to add a new unconditional jump. Choose the taken
edge based on known or assumed probability. */
- else if (bb->rbi->next != e_taken->dest)
+ else if (bb->aux != e_taken->dest)
{
rtx note = find_reg_note (bb_end_insn, REG_BR_PROB, 0);
continue;
/* If the fallthru block is still next, nothing to do. */
- if (bb->rbi->next == e_fall->dest)
+ if (bb->aux == e_fall->dest)
continue;
/* A fallthru to exit block. */
nb = force_nonfallthru (e_fall);
if (nb)
{
- initialize_bb_rbi (nb);
- nb->rbi->visited = 1;
- nb->rbi->next = bb->rbi->next;
- bb->rbi->next = nb;
+ nb->il.rtl->visited = 1;
+ nb->aux = bb->aux;
+ bb->aux = nb;
/* Don't process this new block. */
bb = nb;
fprintf (dump_file, "Reordered sequence:\n");
for (bb = ENTRY_BLOCK_PTR->next_bb, index = 0;
bb;
- bb = bb->rbi->next, index++)
+ bb = bb->aux, index++)
{
fprintf (dump_file, " %i ", index);
if (get_bb_original (bb))
bb = ENTRY_BLOCK_PTR->next_bb;
index = 0;
- for (; bb; prev_bb = bb, bb = bb->rbi->next, index ++)
+ for (; bb; prev_bb = bb, bb = bb->aux, index ++)
{
bb->index = index;
BASIC_BLOCK (index) = bb;
if (e->flags & EDGE_FALLTHRU)
bb = e->src;
- if (bb && bb->rbi->next)
+ if (bb && bb->aux)
{
basic_block c = ENTRY_BLOCK_PTR->next_bb;
if (c == bb)
{
bb = split_block (bb, NULL)->dest;
- initialize_bb_rbi (bb);
- bb->rbi->next = c->rbi->next;
- c->rbi->next = bb;
- bb->rbi->footer = c->rbi->footer;
- c->rbi->footer = NULL;
+ bb->aux = c->aux;
+ c->aux = bb;
+ bb->il.rtl->footer = c->il.rtl->footer;
+ c->il.rtl->footer = NULL;
}
- while (c->rbi->next != bb)
- c = c->rbi->next;
+ while (c->aux != bb)
+ c = c->aux;
- c->rbi->next = bb->rbi->next;
- while (c->rbi->next)
- c = c->rbi->next;
+ c->aux = bb->aux;
+ while (c->aux)
+ c = c->aux;
- c->rbi->next = bb;
- bb->rbi->next = NULL;
+ c->aux = bb;
+ bb->aux = NULL;
}
}
\f
EXIT_BLOCK_PTR->prev_bb);
BB_COPY_PARTITION (new_bb, bb);
- if (bb->rbi->header)
+ if (bb->il.rtl->header)
{
- insn = bb->rbi->header;
+ insn = bb->il.rtl->header;
while (NEXT_INSN (insn))
insn = NEXT_INSN (insn);
- insn = duplicate_insn_chain (bb->rbi->header, insn);
+ insn = duplicate_insn_chain (bb->il.rtl->header, insn);
if (insn)
- new_bb->rbi->header = unlink_insn_chain (insn, get_last_insn ());
+ new_bb->il.rtl->header = unlink_insn_chain (insn, get_last_insn ());
}
- if (bb->rbi->footer)
+ if (bb->il.rtl->footer)
{
- insn = bb->rbi->footer;
+ insn = bb->il.rtl->footer;
while (NEXT_INSN (insn))
insn = NEXT_INSN (insn);
- insn = duplicate_insn_chain (bb->rbi->footer, insn);
+ insn = duplicate_insn_chain (bb->il.rtl->footer, insn);
if (insn)
- new_bb->rbi->footer = unlink_insn_chain (insn, get_last_insn ());
+ new_bb->il.rtl->footer = unlink_insn_chain (insn, get_last_insn ());
}
if (bb->il.rtl->global_live_at_start)
void
cfg_layout_initialize (unsigned int flags)
{
- basic_block bb;
-
- FOR_BB_BETWEEN (bb, ENTRY_BLOCK_PTR, NULL, next_bb)
- initialize_bb_rbi (bb);
-
initialize_original_copy_tables ();
cfg_layout_rtl_register_cfg_hooks ();
free (superblocks);
}
-/* Finalize the changes: reorder insn list according to the sequence, enter
- compensation code, rebuild scope forest. */
+/* Finalize the changes: reorder insn list according to the sequence specified
+ by aux pointers, enter compensation code, rebuild scope forest. */
void
cfg_layout_finalize (void)
verify_insn_chain ();
#endif
FOR_BB_BETWEEN (bb, ENTRY_BLOCK_PTR, NULL, next_bb)
- bb->rbi = NULL;
+ {
+ bb->il.rtl->header = bb->il.rtl->footer = NULL;
+ bb->aux = NULL;
+ bb->il.rtl->visited = 0;
+ }
break_superblocks ();
is copied, we do not set the new blocks as header or latch.
Created copies of N_EDGES edges in array EDGES are stored in array NEW_EDGES,
- also in the same order. */
+ also in the same order.
+
+ Newly created basic blocks are put after the basic block AFTER in the
+ instruction stream, and the order of the blocks in BBS array is preserved. */
void
copy_bbs (basic_block *bbs, unsigned n, basic_block *new_bbs,
edge *edges, unsigned num_edges, edge *new_edges,
- struct loop *base)
+ struct loop *base, basic_block after)
{
unsigned i, j;
basic_block bb, new_bb, dom_bb;
{
/* Duplicate. */
bb = bbs[i];
- new_bb = new_bbs[i] = duplicate_block (bb, NULL);
+ new_bb = new_bbs[i] = duplicate_block (bb, NULL, after);
+ after = new_bb;
bb->flags |= BB_DUPLICATED;
/* Add to loop. */
add_bb_to_loop (new_bb, bb->loop_father->copy);
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