https://gcc.gnu.org/g:9514a728a62cb82fd05b2db97717525e98ebdd53
commit r17-4930-g9514a728a62cb82fd05b2db97717525e98ebdd53 Author: Richard Biener <[email protected]> Date: Tue Oct 6 10:42:02 2026 +0200 tree-optimization/127705 - access violation with SCC copy The following fixes up the completely botched attempt to save off the SCC for later setting of the scheduling result to all components. PR tree-optimization/127705 * tree-vect-slp.cc (vect_schedule_scc): Fixup SCC copy. Diff: --- gcc/tree-vect-slp.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index 142037ed0081..00ed4d3fec14 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -12794,7 +12794,8 @@ vect_schedule_scc (vec_info *vinfo, slp_tree node, slp_instance instance, iterate and schedule those that are ready. */ unsigned todo = stack.length () - last_idx; auto_vec<slp_tree, 4> saved_scc (todo); - memcpy (saved_scc.address (), stack.address ()[last_idx + 1], + saved_scc.quick_grow (todo); + memcpy (saved_scc.address (), &stack.address ()[last_idx], sizeof (slp_tree) * todo); do {
