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| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/tree-cfg.c | 6 |
2 files changed, 6 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e6777c8..fa24164 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -2,6 +2,9 @@ * tree-cfg.c (tree_can_merge_blocks_p): Reorder two checks. + * tree-cfg.c (tree_forwarder_block_p): Speed up by walking + through the statements backward. + 2005-01-17 Ian Lance Taylor <ian@airs.com> PR middle-end/13127: diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index 14c901d..d360719 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -3911,9 +3911,9 @@ tree_forwarder_block_p (basic_block bb) gcc_assert (bb != ENTRY_BLOCK_PTR); #endif - /* Now walk through the statements. We can ignore labels, anything else - means this is not a forwarder block. */ - for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi)) + /* Now walk through the statements backward. We can ignore labels, + anything else means this is not a forwarder block. */ + for (bsi = bsi_last (bb); !bsi_end_p (bsi); bsi_next (&bsi)) { tree stmt = bsi_stmt (bsi); |