The following changes 'no optab' to mention which tree code and
vector type we were looking for and adds 'shift' to the instances
of this message emitted from vectorizable_shift.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
* tree-vect-stmts.cc (vectorizable_shift): Improve missing
optab or optab support messages.
(vectorizable_operation): Likewise.
---
gcc/tree-vect-stmts.cc | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index 8086d4c35c9..a563238c4be 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -6348,7 +6348,8 @@ vectorizable_shift (vec_info *vinfo,
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
- "no optab.\n");
+ "no shift optab for %s and %T.\n",
+ get_tree_code_name (code), vectype);
return false;
}
vec_mode = TYPE_MODE (vectype);
@@ -6357,7 +6358,7 @@ vectorizable_shift (vec_info *vinfo,
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
- "op not supported by target.\n");
+ "shift op not supported by target.\n");
return false;
}
/* vector lowering cannot optimize vector shifts using word arithmetic. */
@@ -6723,7 +6724,8 @@ vectorizable_operation (vec_info *vinfo,
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
- "no optab.\n");
+ "no optab for %s and %T.\n",
+ get_tree_code_name (code), vectype);
return false;
}
target_support_p = can_implement_p (optab, vec_mode);
--
2.51.0
