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| author | Aldy Hernandez <aldyh@redhat.com> | 2021-09-22 09:30:21 +0200 |
|---|---|---|
| committer | Aldy Hernandez <aldyh@redhat.com> | 2021-09-22 13:28:16 +0200 |
| commit | fec75ab8c02be904de2963c0adb6d1e940a59761 (patch) | |
| tree | 0669ad429f65951fb8257725317d0c627fb3ed85 /gcc | |
| parent | 7e5e44bd1729b7a9b458d512ddf61bfba5031869 (diff) | |
| download | gcc-fec75ab8c02be904de2963c0adb6d1e940a59761.zip gcc-fec75ab8c02be904de2963c0adb6d1e940a59761.tar.gz gcc-fec75ab8c02be904de2963c0adb6d1e940a59761.tar.bz2 | |
Check for BB before calling register_outgoing_edges.
We may be asked to fold an artificial statement not in the CFG. Since
there are no outgoing edges from those, avoid calling
register_outgoing_edges.
Tested on x86-64 Linux.
gcc/ChangeLog:
* gimple-range-fold.cc (fold_using_range::range_of_range_op):
Move check for non-empty BB here.
(fur_source::register_outgoing_edges): ...from here.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/gimple-range-fold.cc | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/gcc/gimple-range-fold.cc b/gcc/gimple-range-fold.cc index d7fa0f2..1da1bef 100644 --- a/gcc/gimple-range-fold.cc +++ b/gcc/gimple-range-fold.cc @@ -650,7 +650,9 @@ fold_using_range::range_of_range_op (irange &r, gimple *s, fur_source &src) src.register_relation (s, rel, lhs, op2); } } - else if (is_a<gcond *> (s)) + // Check for an existing BB, as we maybe asked to fold an + // artificial statement not in the CFG. + else if (is_a<gcond *> (s) && gimple_bb (s)) { basic_block bb = gimple_bb (s); edge e0 = EDGE_SUCC (bb, 0); @@ -1404,10 +1406,6 @@ fur_source::register_outgoing_edges (gcond *s, irange &lhs_range, edge e0, edge range_operator *handler; basic_block bb = gimple_bb (s); - // We may get asked to fold an artificial statement not in the CFG. - if (!bb) - return; - if (e0) { // If this edge is never taken, ignore it. |