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Diffstat (limited to 'gcc/tree-ssa-threadedge.c')
| -rw-r--r-- | gcc/tree-ssa-threadedge.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/tree-ssa-threadedge.c b/gcc/tree-ssa-threadedge.c index bbc4f9b..810908b 100644 --- a/gcc/tree-ssa-threadedge.c +++ b/gcc/tree-ssa-threadedge.c @@ -1040,6 +1040,16 @@ thread_across_edge (gimple dummy_cond, edge_iterator ei; bool found; + /* If E->dest has abnormal outgoing edges, then there's no guarantee + we can safely redirect any of the edges. Just punt those cases. */ + FOR_EACH_EDGE (taken_edge, ei, e->dest->succs) + if (taken_edge->flags & EDGE_ABNORMAL) + { + remove_temporary_equivalences (stack); + BITMAP_FREE (visited); + return; + } + /* Look at each successor of E->dest to see if we can thread through it. */ FOR_EACH_EDGE (taken_edge, ei, e->dest->succs) { |