contrib/gcc/bb-reorder.c

22    The construction starts from "seeds".  The seed for the first round
32    Each round has these parameters lower than the previous one.
33    The last round has to have these parameters set to zero
38    The other successors (that has not been "sent" to the next round) will be
39    other seeds for this round and the secondary traces will start in them.
94    the .o file there will be an extra round.*/
157   /* The round of the STC creation which this trace was found in.  */
158   int round;
192 /* Check to see if bb should be pushed into the next round of trace
195    another round (cold partition blocks are not supposed to be
196    collected into traces until the very last round); or 2). There will
197    be another round, and the basic block is not "hot enough" for the
198    current round of trace collection.  */
201 push_to_next_round_p (basic_block bb, int round, int number_of_rounds,
207   there_exists_another_round = round < number_of_rounds - 1;
233   /* Add one extra round of trace collection when partitioning hot/cold
234      basic blocks into separate sections.  The last round is for all the
260 	fprintf (dump_file, "STC - round %d\n", i + 1);
279 	  fprintf (dump_file, "Trace %d (round %d):  ", i + 1,
280 		   traces[i].round + 1);
420 /* One round of finding traces. Find traces for BRANCH_TH and EXEC_TH i.e. do
424    traces *N_TRACES. Sets the round (which the trace belongs to) to ROUND. It
426    *HEAP and stores starting points for the next round into new *HEAP.  */
430 		     struct trace *traces, int *n_traces, int round,
434      the next round.  */
452       /* If the BB's frequency is too low send BB to the next round.  When
455 	 round.  */
457       if (push_to_next_round_p (bb, round, number_of_rounds, exec_th,
466 		     "  Possible start point of next round: %d (key: %d)\n",
473       trace->round = round;
595 			 pushed to the last round of trace collection.  */
597 		      if (push_to_next_round_p (e->dest, round,
610 			       "  Possible start of %s round: %d (key: %ld)\n",