diff mbox series

tree-optimization/102847 - adjust VMAT_INVARIANT load costing

Message ID 7pr374o6-q45r-p734-rp95-s822231n565o@fhfr.qr
State Committed
Commit 8516963942b0a8f06fa8f5ebd7c37f9edea151ac
Headers
Series tree-optimization/102847 - adjust VMAT_INVARIANT load costing |

Commit Message

Richard Biener Oct. 21, 2021, 10:14 a.m. UTC 
  This adds the missing scalar load cost in the prologue.

Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.

2021-10-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/102847
	* tree-vect-stmts.c (vect_model_load_cost): Add the scalar
	load cost in the prologue for VMAT_INVARIANT.
---
 gcc/tree-vect-stmts.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index 8f527452bd0..c28c9370655 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -1194,6 +1194,9 @@  vect_model_load_cost (vec_info *vinfo,
   else if (memory_access_type == VMAT_INVARIANT)
     {
       /* Invariant loads will ideally be hoisted and splat to a vector.  */
+      prologue_cost += record_stmt_cost (cost_vec, 1,
+					 scalar_load, stmt_info, 0,
+					 vect_prologue);
       prologue_cost += record_stmt_cost (cost_vec, 1,
 					 scalar_to_vec, stmt_info, 0,
 					 vect_prologue);