tree-vect-patterns.c (vect_recog_widen_mult_pattern): Add NULL check for…

tree-vect-patterns.c (vect_recog_widen_mult_pattern): Add NULL check for vectype_out returned by get_vectype_for_scalar_type().

gcc/

2010-10-07  Tejas Belagod  <tejas.belagod@arm.com>

	* tree-vect-patterns.c (vect_recog_widen_mult_pattern): Add NULL
	check for vectype_out returned by get_vectype_for_scalar_type().

testsuite/

2010-10-07  Tejas Belagod  <tejas.belagod@arm.com>

	* gcc.dg/vect/pr45847.c: New test.

From-SVN: r165123

gcc/ChangeLog

 2010-10-07  Tejas Belagod  <tejas.belagod@arm.com>
 
+	* tree-vect-patterns.c (vect_recog_widen_mult_pattern): Add NULL
+	check for vectype_out returned by get_vectype_for_scalar_type().
+
+2010-10-07  Tejas Belagod  <tejas.belagod@arm.com>
+
 	* config/arm/neon.md (neon_unpack<US>_<mode>): Add 'w' to
 	constraint, add register specifier in instruction template.
 	(neon_vec_pack_trunc_<mode>): Likewise.

gcc/testsuite/ChangeLog

+2010-10-07  Tejas Belagod  <tejas.belagod@arm.com>
+
+	* gcc.dg/vect/pr45847.c: New test.
+
 2010-10-07  Iain Sandoe  <iains@gcc.gnu.org>
 	    Kai Tietz  <kai.tietz@onevision.com>
 

gcc/testsuite/gcc.dg/vect/pr45847.c

+/* { dg-do compile } */
+
+
+long long foo (long long *__restrict a,  int *__restrict b, int *__restrict c )
+{
+  int i;
+  long long sum=0;
+  for (i=0;i<256;i++)
+   sum += (long long)b[i] * c[i];
+
+  return sum;
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */
+

gcc/tree-vect-patterns.c

@@ -413,6 +413,7 @@ vect_recog_widen_mult_pattern (gimple last_stmt,
   vectype = get_vectype_for_scalar_type (half_type0);
   vectype_out = get_vectype_for_scalar_type (type);
   if (!vectype
+      || !vectype_out
       || !supportable_widening_operation (WIDEN_MULT_EXPR, last_stmt,
 					  vectype_out, vectype,
 					  &dummy, &dummy, &dummy_code,