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Diffstat (limited to 'gcc/tree-ssa-threadupdate.c')
| -rw-r--r-- | gcc/tree-ssa-threadupdate.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/tree-ssa-threadupdate.c b/gcc/tree-ssa-threadupdate.c index 3c3d3bc..6d43dc3 100644 --- a/gcc/tree-ssa-threadupdate.c +++ b/gcc/tree-ssa-threadupdate.c @@ -659,8 +659,10 @@ thread_block (basic_block bb, bool noloop_only) threading path. We do not try and thread this elsewhere, so just cancel the jump threading request by clearing the AUX field now. */ - if (bb->loop_father != e2->src->loop_father - && !loop_exit_edge_p (e2->src->loop_father, e2)) + if ((bb->loop_father != e2->src->loop_father + && !loop_exit_edge_p (e2->src->loop_father, e2)) + || (e2->src->loop_father != e2->dest->loop_father + && !loop_exit_edge_p (e2->src->loop_father, e2))) { /* Since this case is not handled by our special code to thread through a loop header, we must explicitly |