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| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-outof-ssa.c | 19 |
2 files changed, 25 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index accb133..e8208f5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-11-03 Andrew MacLeod <amacleod@redhat.com> + + PR tree-optimization/18270 + * tree-outof-ssa.c (analyze_edges_for_bb): If a block has incoming + abnormal edges, commit all pending stmts on incoming edges. + 2004-11-03 Ulrich Weigand <uweigand@de.ibm.com> * tree-ssa-loop-ivopts.c (get_address_cost): Offset zero does not diff --git a/gcc/tree-outof-ssa.c b/gcc/tree-outof-ssa.c index 6d33c47..074ca5b 100644 --- a/gcc/tree-outof-ssa.c +++ b/gcc/tree-outof-ssa.c @@ -2024,6 +2024,25 @@ analyze_edges_for_bb (basic_block bb, FILE *debug_file) bool is_label; count = 0; + + /* Blocks which contain at least one abnormal edge cannot use + make_forwarder_block. Look for these blocks, and commit any PENDING_STMTs + found on edges in these block. */ + have_opportunity = true; + FOR_EACH_EDGE (e, ei, bb->preds) + if (e->flags & EDGE_ABNORMAL) + { + have_opportunity = false; + break; + } + + if (!have_opportunity) + { + FOR_EACH_EDGE (e, ei, bb->preds) + if (PENDING_STMT (e)) + bsi_commit_one_edge_insert (e, NULL); + return false; + } /* Find out how many edges there are with interesting pending stmts on them. Commit the stmts on edges we are not interested in. */ FOR_EACH_EDGE (e, ei, bb->preds) |