From: Richard Biener <rguenther@suse.de>
Date: Fri, 10 Jun 2016 11:45:39 +0000 (+0000)
Subject: targhooks.c (default_builtin_vectorization_cost): Adjust vec_construct cost.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fcea0bbbacd4f2ef7007338b3ec6edf72e9ba6a7;p=gcc.git

targhooks.c (default_builtin_vectorization_cost): Adjust vec_construct cost.

2016-06-10  Richard Biener  <rguenther@suse.de>

	* targhooks.c (default_builtin_vectorization_cost): Adjust
	vec_construct cost.

From-SVN: r237302
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5038f751ae3..580dbed12c3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-06-10  Richard Biener  <rguenther@suse.de>
+
+	* targhooks.c (default_builtin_vectorization_cost): Adjust
+	vec_construct cost.
+
 2016-06-10  Richard Biener  <rguenther@suse.de>
 
 	* gimple-fold.c (gimple_fold_builtin_memory_op): Make sure
diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index 95980f547bd..3e089e759ce 100644
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -564,8 +564,6 @@ default_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
                                     tree vectype,
                                     int misalign ATTRIBUTE_UNUSED)
 {
-  unsigned elements;
-
   switch (type_of_cost)
     {
       case scalar_stmt:
@@ -589,8 +587,7 @@ default_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
         return 3;
 
       case vec_construct:
-	elements = TYPE_VECTOR_SUBPARTS (vectype);
-	return elements / 2 + 1;
+	return TYPE_VECTOR_SUBPARTS (vectype) - 1;
 
       default:
         gcc_unreachable ();