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tree-cfg.c (thread_jumps): Speed up by reordering the two conditions for entering basic blocks into worklist. 

* tree-cfg.c (thread_jumps): Speed up by reordering the two
	conditions for entering basic blocks into worklist.

From-SVN: r89700
This commit is contained in:
Kazu Hirata 2004-10-27 18:33:26 +00:00 committed by Kazu Hirata
parent af88d4ec96
commit 0b371c72fe
2 changed files with 15 additions and 10 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-10-27 Kazu Hirata <kazu@cs.umass.edu>
* tree-cfg.c (thread_jumps): Speed up by reordering the two
conditions for entering basic blocks into worklist.
2004-10-27 Kazu Hirata <kazu@cs.umass.edu> 2004-10-27 Kazu Hirata <kazu@cs.umass.edu>
* tree-cfg.c (thread_jumps): Speed up by pretending to have * tree-cfg.c (thread_jumps): Speed up by pretending to have

20
gcc/tree-cfg.c
View File

@ -3974,11 +3974,11 @@ thread_jumps (void)
among BB's predecessors. */ among BB's predecessors. */
FOR_EACH_EDGE (e, ei, bb->preds) FOR_EACH_EDGE (e, ei, bb->preds)
{ {
/* We are not interested in threading jumps from a forwarder /* We don't want to put a duplicate into WORKLIST. */
block. */ if ((e->src->flags & BB_VISITED) == 0
if (!bb_ann (e->src)->forwardable /* We are not interested in threading jumps from a forwarder
/* We don't want to put a duplicate into WORKLIST. */ block. */
&& (e->src->flags & BB_VISITED) == 0) && !bb_ann (e->src)->forwardable)
{ {
e->src->flags |= BB_VISITED; e->src->flags |= BB_VISITED;
worklist[size] = e->src; worklist[size] = e->src;
@ -4013,11 +4013,11 @@ thread_jumps (void)
predecessors. */ predecessors. */
FOR_EACH_EDGE (f, ej, bb->preds) FOR_EACH_EDGE (f, ej, bb->preds)
{ {
/* We are not interested in threading jumps from a /* We don't want to put a duplicate into WORKLIST. */
forwarder block. */ if ((f->src->flags & BB_VISITED) == 0
if (!bb_ann (f->src)->forwardable /* We are not interested in threading jumps from a
/* We don't want to put a duplicate into WORKLIST. */ forwarder block. */
&& (f->src->flags & BB_VISITED) == 0) && !bb_ann (f->src)->forwardable)
{ {
f->src->flags |= BB_VISITED; f->src->flags |= BB_VISITED;
worklist[size] = f->src; worklist[size] = f->src;