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Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 25b9780..6b403f5 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -1181,6 +1181,10 @@ alloc_iv (struct ivopts_data *data, tree base, tree step, iv->biv_p = false; iv->nonlin_use = NULL; iv->ssa_name = NULL_TREE; + if (!no_overflow + && !iv_can_overflow_p (data->current_loop, TREE_TYPE (base), + base, step)) + no_overflow = true; iv->no_overflow = no_overflow; iv->have_address_use = false; |