re PR tree-optimization/42709 (error: type mismatch in pointer plus expression)

	PR tree-optimization/42709
	* tree-vect-slp.c (vect_get_constant_vectors): Use constant's type
	as scalar type in creation of constant vector operand.

From-SVN: r155882

gcc/ChangeLog

+2010-01-14  Ira Rosen  <irar@il.ibm.com>
+
+	PR tree-optimization/42709
+	* tree-vect-slp.c (vect_get_constant_vectors): Use constant's type
+	as scalar type in creation of constant vector operand.
+
 2010-01-14  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	PR testsuite/42414

gcc/testsuite/ChangeLog

+2010-01-14  Ira Rosen  <irar@il.ibm.com>
+
+	PR tree-optimization/42709
+	* gcc.dg/vect/pr42709.c: New test.
+
 2010-01-14  Paul Thomas  <pault@gcc.gnu.org>
 
         PR fortran/41478

gcc/testsuite/gcc.dg/vect/pr42709.c

+/* { dg-do compile } */
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128 
+
+int *res[N];
+
+int
+main1 (int *a, int *b, int *c, int *d, int dummy)
+{
+  int i;
+
+  for (i = 0; i < N/2; i+=4)
+    {
+      res[i] = a + 16;
+      res[i+1] = b + 16;
+      res[i+2] = c + 16;
+      res[i+3] = d + 16;
+      if (dummy == 32)
+        abort ();
+    } 
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */
+  

gcc/tree-vect-slp.c

@@ -1421,7 +1421,6 @@ vect_get_constant_vectors (slp_tree slp_node, VEC(tree,heap) **vec_oprnds,
   VEC (gimple, heap) *stmts = SLP_TREE_SCALAR_STMTS (slp_node);
   gimple stmt = VEC_index (gimple, stmts, 0);
   stmt_vec_info stmt_vinfo = vinfo_for_stmt (stmt);
-  tree vectype = STMT_VINFO_VECTYPE (stmt_vinfo);
   int nunits;
   tree vec_cst;
   tree t = NULL_TREE;
@@ -1446,16 +1445,12 @@ vect_get_constant_vectors (slp_tree slp_node, VEC(tree,heap) **vec_oprnds,
     }
 
   if (CONSTANT_CLASS_P (op))
-    {
-      vector_type = vectype;
     constant_p = true;
-    }
   else
-    {
+    constant_p = false;
+
   vector_type = get_vectype_for_scalar_type (TREE_TYPE (op));
   gcc_assert (vector_type);
-      constant_p = false;
-    }
 
   nunits = TYPE_VECTOR_SUBPARTS (vector_type);