Patch for PR target/32218 (ice-on-valid-code, IA64 vectorization)

[Steve Ellcey]

PR target/32218 is an ice-on-valid-code problem where we call TYPE_MODE
with the result of get_vectype_for_scalar_type.
get_vectype_for_scalar_type can return a NULL_TREE if there is no
vectype for a particular scalar type and if we call TYPE_MODE with
NULL_TREE we will get an ICE.  This patch checks the result of
get_vectype_for_scalar_type before using it.

OK for checkin?

Steve Ellcey
sje@cup.hp.com


2007-07-25  Steve Ellcey  <sje@cup.hp.com>

	* tree-vect-patterns.c (vect_pattern_recog_1): Check for valid type.


Index: tree-vect-patterns.c
===================================================================
--- tree-vect-patterns.c	(revision 126897)
+++ tree-vect-patterns.c	(working copy)
@@ -651,8 +651,9 @@ vect_pattern_recog_1 (
           || (icode = optab->handlers[(int) vec_mode].insn_code) ==
               CODE_FOR_nothing
           || (type_out
-              && (insn_data[icode].operand[0].mode !=
-                  TYPE_MODE (get_vectype_for_scalar_type (type_out)))))
+              && (!get_vectype_for_scalar_type (type_out)
+                  || (insn_data[icode].operand[0].mode !=
+                      TYPE_MODE (get_vectype_for_scalar_type (type_out))))))
 	return;
     }