When updating the target costs interface, I failed to move the
free of the scalar costs beyond the new last use.
Tested on aarch64-linux-gnu and x86_64-linux-gnu, pushed as obvious.
Richard
gcc/
* tree-vect-slp.cc (vect_bb_vectorization_profitable_p): Fix
use after free.
---
gcc/tree-vect-slp.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc
index e2cc7218c2b..273543d37ea 100644
--- a/gcc/tree-vect-slp.cc
+++ b/gcc/tree-vect-slp.cc
@@ -5380,7 +5380,6 @@ vect_bb_vectorization_profitable_p (bb_vec_info bb_vinfo,
unsigned dummy;
finish_cost (scalar_target_cost_data, nullptr,
&dummy, &scalar_cost, &dummy);
- delete scalar_target_cost_data;
/* Complete the target-specific vector cost calculation. */
class vector_costs *vect_target_cost_data = init_cost (bb_vinfo, false);
@@ -5393,6 +5392,7 @@ vect_bb_vectorization_profitable_p (bb_vec_info bb_vinfo,
&& li_vector_costs[vi].first == vl);
finish_cost (vect_target_cost_data, scalar_target_cost_data,
&vec_prologue_cost, &vec_inside_cost, &vec_epilogue_cost);
+ delete scalar_target_cost_data;
delete vect_target_cost_data;
vec_outside_cost = vec_prologue_cost + vec_epilogue_cost;
--
2.25.1
