diff options
Diffstat (limited to 'gcc/cfgloop.c')
| -rw-r--r-- | gcc/cfgloop.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/cfgloop.c b/gcc/cfgloop.c index 6911426..c3bd9c0 100644 --- a/gcc/cfgloop.c +++ b/gcc/cfgloop.c @@ -1713,12 +1713,19 @@ loop_preheader_edge (const struct loop *loop) edge e; edge_iterator ei; - gcc_assert (loops_state_satisfies_p (LOOPS_HAVE_PREHEADERS)); + gcc_assert (loops_state_satisfies_p (LOOPS_HAVE_PREHEADERS) + && ! loops_state_satisfies_p (LOOPS_MAY_HAVE_MULTIPLE_LATCHES)); FOR_EACH_EDGE (e, ei, loop->header->preds) if (e->src != loop->latch) break; + if (! e) + { + gcc_assert (! loop_outer (loop)); + return single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun)); + } + return e; } |