We have to clear the visited flag on stmts.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
* tree-vect-slp.cc (vect_slp_region): Also clear visited flag when
we skipped an instance due to -fdbg-cnt.
---
gcc/tree-vect-slp.cc | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc
index 80e279d8f50..33c4d1308f6 100644
--- a/gcc/tree-vect-slp.cc
+++ b/gcc/tree-vect-slp.cc
@@ -7652,6 +7652,7 @@ vect_slp_region (vec<basic_block> bbs,
vec<data_reference_p> datarefs,
bb_vinfo->shared->check_datarefs ();
+ bool force_clear = false;
auto_vec<slp_instance> profitable_subgraphs;
for (slp_instance instance : BB_VINFO_SLP_INSTANCES (bb_vinfo))
{
@@ -7674,15 +7675,17 @@ vect_slp_region (vec<basic_block> bbs,
vec<data_reference_p> datarefs,
vect_location = saved_vect_location;
if (!dbg_cnt (vect_slp))
- continue;
+ {
+ force_clear = true;
+ continue;
+ }
profitable_subgraphs.safe_push (instance);
}
/* When we're vectorizing an if-converted loop body make sure
we vectorized all if-converted code. */
- if (!profitable_subgraphs.is_empty ()
- && orig_loop)
+ if ((!profitable_subgraphs.is_empty () || force_clear) && orig_loop)
{
gcc_assert (bb_vinfo->bbs.length () == 1);
for (gimple_stmt_iterator gsi = gsi_start_bb (bb_vinfo->bbs[0]);
--
2.35.3
