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Diffstat (limited to 'gcc/tree-ssa-dce.c')
| -rw-r--r-- | gcc/tree-ssa-dce.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c index c9cb0e4..df30614 100644 --- a/gcc/tree-ssa-dce.c +++ b/gcc/tree-ssa-dce.c @@ -1149,7 +1149,12 @@ remove_dead_stmt (gimple_stmt_iterator *i, basic_block bb) if (e != e2) { cfg_altered = true; - remove_edge (e2); + /* If we made a BB unconditionally exit a loop then this + transform alters the set of BBs in the loop. Schedule + a fixup. */ + if (loop_exit_edge_p (bb->loop_father, e)) + loops_state_set (LOOPS_NEED_FIXUP); + remove_edge (e2); } else ei_next (&ei); |