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tree-cfg.c (thread_jumps_from_bb): Speed up by extracting edge information when...

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* tree-cfg.c (thread_jumps_from_bb): Speed up by extracting
	edge information when we commit ourselves to threading a
	particular jump.

From-SVN: r89462
This commit is contained in:
Kazu Hirata 2004-10-22 17:59:50 +00:00 committed by Kazu Hirata
parent afc3f39603
commit 385efa80b7
2 changed files with 8 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-10-22 Kazu Hirata <kazu@cs.umass.edu>
* tree-cfg.c (thread_jumps_from_bb): Speed up by extracting
edge information when we commit ourselves to threading a
particular jump.
2004-10-22 Kazu Hirata <kazu@cs.umass.edu> 2004-10-22 Kazu Hirata <kazu@cs.umass.edu>
* tree-cfg.c (thread_jumps): Speed up by putting basic blocks * tree-cfg.c (thread_jumps): Speed up by putting basic blocks

5
gcc/tree-cfg.c
View File

@ -3788,9 +3788,6 @@ thread_jumps_from_bb (basic_block bb)
continue; continue;
} }
count = e->count;
freq = EDGE_FREQUENCY (e);
/* Now walk through as many forwarder blocks as possible to find /* Now walk through as many forwarder blocks as possible to find
the ultimate destination we want to thread our jump to. */ the ultimate destination we want to thread our jump to. */
last = EDGE_SUCC (e->dest, 0); last = EDGE_SUCC (e->dest, 0);
@ -3839,6 +3836,8 @@ thread_jumps_from_bb (basic_block bb)
/* Perform the redirection. */ /* Perform the redirection. */
retval = true; retval = true;
count = e->count;
freq = EDGE_FREQUENCY (e);
old_dest = e->dest; old_dest = e->dest;
e = redirect_edge_and_branch (e, dest); e = redirect_edge_and_branch (e, dest);