targhooks.c (default_get_mask_mode): Use BLKmode in case target doesn't support…

targhooks.c (default_get_mask_mode): Use BLKmode in case target doesn't support required vector mode.

gcc/

2015-10-29  Ilya Enkovich  <enkovich.gnu@gmail.com>

	* targhooks.c (default_get_mask_mode): Use BLKmode in
	case target doesn't support required vector mode.
	* stor-layout.c (layout_type); Check for BLKmode.

From-SVN: r229794

gcc/ChangeLog

+2015-11-05  Ilya Enkovich  <enkovich.gnu@gmail.com>
+
+	* targhooks.c (default_get_mask_mode): Use BLKmode in
+	case target doesn't support required vector mode.
+	* stor-layout.c (layout_type); Check for BLKmode.
+
 2015-11-04  Aditya Kumar  <aditya.k7@samsung.com>
 	    Sebastian Pop  <s.pop@samsung.com>
 

gcc/stor-layout.c

@@ -2174,7 +2174,8 @@ layout_type (tree type)
 	TYPE_SATURATING (type) = TYPE_SATURATING (TREE_TYPE (type));
         TYPE_UNSIGNED (type) = TYPE_UNSIGNED (TREE_TYPE (type));
 	/* Several boolean vector elements may fit in a single unit.  */
-	if (VECTOR_BOOLEAN_TYPE_P (type))
+	if (VECTOR_BOOLEAN_TYPE_P (type)
+	    && type->type_common.mode != BLKmode)
 	  TYPE_SIZE_UNIT (type)
 	    = size_int (GET_MODE_SIZE (type->type_common.mode));
 	else

gcc/targhooks.c

@@ -1087,10 +1087,16 @@ default_get_mask_mode (unsigned nunits, unsigned vector_size)
   unsigned elem_size = vector_size / nunits;
   machine_mode elem_mode
     = smallest_mode_for_size (elem_size * BITS_PER_UNIT, MODE_INT);
+  machine_mode vector_mode;
 
   gcc_assert (elem_size * nunits == vector_size);
 
-  return mode_for_vector (elem_mode, nunits);
+  vector_mode = mode_for_vector (elem_mode, nunits);
+  if (VECTOR_MODE_P (vector_mode)
+      && !targetm.vector_mode_supported_p (vector_mode))
+    vector_mode = BLKmode;
+
+  return vector_mode;
 }
 
 /* By default, the cost model accumulates three separate costs (prologue,