From: Richard Guenther <rguenther@suse.de>
Date: Wed, 2 Nov 2011 10:20:32 +0000 (+0000)
Subject: re PR tree-optimization/50902 (intVar/dinternal.cc ICEs at -O2 -ftree-vectorize)
X-Git-Tag: releases/gcc-4.7.0~2639
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98f4fb344a0c5a038297eb878ad0f1304149147d;p=thirdparty%2Fgcc.git

re PR tree-optimization/50902 (intVar/dinternal.cc ICEs at -O2 -ftree-vectorize)

2011-11-02  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50902
	* tree-vect-stmts.c (vectorizable_load): Properly convert
	an invariant initializer element.

	* gcc.dg/torture/pr50902.c: New testcase.

From-SVN: r180765
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 87e02408db2e..87498634afa4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-11-02  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/50902
+	* tree-vect-stmts.c (vectorizable_load): Properly convert
+	an invariant initializer element.
+
 2010-11-02  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/50890
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index bf7c36611e93..389dfd4f5603 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-02  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/50902
+	* gcc.dg/torture/pr50902.c: New testcase.
+
 2010-11-02  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/50890
diff --git a/gcc/testsuite/gcc.dg/torture/pr50902.c b/gcc/testsuite/gcc.dg/torture/pr50902.c
new file mode 100644
index 000000000000..5b7275b839d6
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr50902.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+
+_Bool data[128];
+void foo (_Bool *init)
+{
+  int i;
+  for (i = 0; i < 128; i++)
+    data[i] = *init;
+}
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index c6df30e9310c..e91efc96ade9 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -4726,11 +4726,20 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
 	      /* 4. Handle invariant-load.  */
 	      if (inv_p && !bb_vinfo)
 		{
-		  tree vec_inv;
+		  tree tem, vec_inv;
 		  gimple_stmt_iterator gsi2 = *gsi;
 		  gcc_assert (!strided_load);
 		  gsi_next (&gsi2);
-		  vec_inv = build_vector_from_val (vectype, scalar_dest);
+		  tem = scalar_dest;
+		  if (!useless_type_conversion_p (TREE_TYPE (vectype),
+						  TREE_TYPE (tem)))
+		    {
+		      tem = fold_convert (TREE_TYPE (vectype), tem);
+		      tem = force_gimple_operand_gsi (&gsi2, tem, true,
+						      NULL_TREE, true,
+						      GSI_SAME_STMT);
+		    }
+		  vec_inv = build_vector_from_val (vectype, tem);
 		  new_temp = vect_init_vector (stmt, vec_inv,
 					       vectype, &gsi2);
 		  new_stmt = SSA_NAME_DEF_STMT (new_temp);