From: Richard Biener <rguenther@suse.de>
Date: Wed, 2 Jan 2013 14:10:36 +0000 (+0000)
Subject: tree-vect-stmts.c (vectorizable_load): When vectorizing an invariant load do not... 
X-Git-Tag: releases/gcc-4.8.0~1182
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0682ed3eb20eb8d5f248710c1e23a819c8b2d2a5;p=thirdparty%2Fgcc.git

tree-vect-stmts.c (vectorizable_load): When vectorizing an invariant load do not generate a vector load from the...

2013-01-02  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_load): When vectorizing an
	invariant load do not generate a vector load from the scalar
	location.

From-SVN: r194806
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 210fb54f26ea..10592b898858 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2013-01-02  Richard Biener  <rguenther@suse.de>
+
+	* tree-vect-stmts.c (vectorizable_load): When vectorizing an
+	invariant load do not generate a vector load from the scalar
+	location.
+
 2013-01-02  Richard Biener  <rguenther@suse.de>
 
 	PR bootstrap/55784
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index 1e8d7ee44017..da9f12b5c8cb 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -4988,6 +4988,19 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
 	  /* Record the mapping between SSA_NAMEs and statements.  */
 	  vect_record_grouped_load_vectors (stmt, dr_chain);
 	}
+      /* Handle invariant-load.  */
+      else if (inv_p && !bb_vinfo)
+	{
+	  gimple_stmt_iterator gsi2 = *gsi;
+	  gcc_assert (!grouped_load && !slp_perm);
+	  gsi_next (&gsi2);
+	  new_temp = vect_init_vector (stmt, scalar_dest,
+				       vectype, &gsi2);
+	  new_stmt = SSA_NAME_DEF_STMT (new_temp);
+	  /* Store vector loads in the corresponding SLP_NODE.  */
+	  if (slp)
+	    SLP_TREE_VEC_STMTS (slp_node).quick_push (new_stmt);
+	}
       else
 	{
 	  for (i = 0; i < vec_num; i++)
@@ -5135,17 +5148,6 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
 		    }
 		}
 
-	      /* 4. Handle invariant-load.  */
-	      if (inv_p && !bb_vinfo)
-		{
-		  gimple_stmt_iterator gsi2 = *gsi;
-		  gcc_assert (!grouped_load);
-		  gsi_next (&gsi2);
-		  new_temp = vect_init_vector (stmt, scalar_dest,
-					       vectype, &gsi2);
-		  new_stmt = SSA_NAME_DEF_STMT (new_temp);
-		}
-
 	      if (negative)
 		{
 		  tree perm_mask = perm_mask_for_reverse (vectype);