The following fixes a bad final value being used when doing single-lane
SLP integer induction cond reduction vectorization.
Bootstrap and regtest running on x86_64-unknown-linux-gnu.
PR tree-optimization/115493
* tree-vect-loop.cc (vect_create_epilog_for_reduction): Use
the first scalar result.
---
gcc/tree-vect-loop.cc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index d9a2ad69484..7c79e9da106 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -6843,8 +6843,8 @@ vect_create_epilog_for_reduction (loop_vec_info
loop_vinfo,
with the original initial value, unless induc_val is
the same as initial_def already. */
tree zcompare = make_ssa_name (boolean_type_node);
- epilog_stmt = gimple_build_assign (zcompare, EQ_EXPR, new_temp,
- induc_val);
+ epilog_stmt = gimple_build_assign (zcompare, EQ_EXPR,
+ scalar_results[0], induc_val);
gsi_insert_before (&exit_gsi, epilog_stmt, GSI_SAME_STMT);
tree initial_def = reduc_info->reduc_initial_values[0];
tree tmp = make_ssa_name (new_scalar_dest);
--
2.35.3
