This makes sure to always use the same vector type for the shift
operand as for the shifted operand.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2020-05-27 Richard Biener <rguent...@suse.de>
PR tree-optimization/95356
* tree-vect-stmts.c (vectorizable_shift): Adjust vector
type for the shift operand.
---
gcc/tree-vect-stmts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index 225a9dc98ac..35043ecd0f9 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -5791,7 +5791,7 @@ vectorizable_shift (vec_info *vinfo,
if (slp_node
&& (!vect_maybe_update_slp_op_vectype (slp_op0, vectype)
|| (!scalar_shift_arg
- && !vect_maybe_update_slp_op_vectype (slp_op1, op1_vectype))))
+ && !vect_maybe_update_slp_op_vectype (slp_op1, vectype))))
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
--
2.12.3
