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Diffstat (limited to 'gcc/tree-ssa-dom.c')
| -rw-r--r-- | gcc/tree-ssa-dom.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index f0b19ff..e3eb0db 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -92,8 +92,7 @@ struct cond_equivalence }; -/* Structure for recording edge equivalences as well as any pending - edge redirections during the dominator optimizer. +/* Structure for recording edge equivalences. Computing and storing the edge equivalences instead of creating them on-demand can save significant amounts of time, particularly @@ -101,10 +100,7 @@ struct cond_equivalence These structures live for a single iteration of the dominator optimizer in the edge's AUX field. At the end of an iteration we - free each of these structures and update the AUX field to point - to any requested redirection target (the code for updating the - CFG and SSA graph for edge redirection expects redirection edge - targets to be in the AUX field for each edge. */ + free each of these structures. */ struct edge_info { |