We currently dump notes like
flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
..
repeating the same location for multiple instances because we
clobber vect_location during BB vectorization. The following
avoids this, improving things to
flow_lam.f:15:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:16:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:17:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:18:72: optimized: basic block part vectorized using 32 byte vectors
...
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
* tree-vect-slp.cc (vect_slp_region): Save/restore vect_location
around dumping code.
---
gcc/tree-vect-slp.cc | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc
index a1b153035e1..eab3dcd40ec 100644
--- a/gcc/tree-vect-slp.cc
+++ b/gcc/tree-vect-slp.cc
@@ -7496,6 +7496,7 @@ vect_slp_region (vec<basic_block> bbs,
vec<data_reference_p> datarefs,
if (instance->subgraph_entries.is_empty ())
continue;
+ dump_user_location_t saved_vect_location = vect_location;
vect_location = instance->location ();
if (!unlimited_cost_model (NULL)
&& !vect_bb_vectorization_profitable_p
@@ -7505,9 +7506,11 @@ vect_slp_region (vec<basic_block> bbs,
vec<data_reference_p> datarefs,
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
"not vectorized: vectorization is not "
"profitable.\n");
+ vect_location = saved_vect_location;
continue;
}
+ vect_location = saved_vect_location;
if (!dbg_cnt (vect_slp))
continue;
@@ -7557,6 +7560,9 @@ vect_slp_region (vec<basic_block> bbs,
vec<data_reference_p> datarefs,
"using SLP\n");
vectorized = true;
+ dump_user_location_t saved_vect_location = vect_location;
+ vect_location = instance->location ();
+
vect_schedule_slp (bb_vinfo, instance->subgraph_entries);
unsigned HOST_WIDE_INT bytes;
@@ -7572,6 +7578,8 @@ vect_slp_region (vec<basic_block> bbs,
vec<data_reference_p> datarefs,
"basic block part vectorized using "
"variable length vectors\n");
}
+
+ vect_location = saved_vect_location;
}
}
else
--
2.35.3
