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Diffstat (limited to 'gcc/tree-ssa-loop-ch.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ch.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop-ch.c b/gcc/tree-ssa-loop-ch.c index 6b5c82c..c876d62 100644 --- a/gcc/tree-ssa-loop-ch.c +++ b/gcc/tree-ssa-loop-ch.c @@ -340,6 +340,11 @@ ch_base::copy_headers (function *fun) bbs[n_bbs++] = header; gcc_assert (bbs_size > n_bbs); header = exit->dest; + /* Make sure to stop copying after we copied the first exit test. + Without further heuristics we do not want to rotate the loop + any further. */ + if (loop_exits_from_bb_p (loop, exit->src)) + break; } if (!exit) |