re PR rtl-optimization/30113 (ICE in trunc_int_for_mode)

	PR rtl-optimization/30113
	* loop-iv.c (implies_p): Require the mode of the operands to be
	scalar.

From-SVN: r119748

gcc/ChangeLog

+2006-12-11  Zdenek Dvorak <dvorakz@suse.cz>
+
+	PR rtl-optimization/30113
+	* loop-iv.c (implies_p): Require the mode of the operands to be
+	scalar.
+
 2006-12-11  Diego Novillo  <dnovillo@redhat.com>
 
 	* tree-ssa-operands.h (create_ssa_artificial_load_stmt):

gcc/loop-iv.c

@@ -1490,7 +1490,7 @@ implies_p (rtx a, rtx b)
 	    mode = VOIDmode;
 	}
 
-      if (mode != VOIDmode
+      if (SCALAR_INT_MODE_P (mode)
 	  && rtx_equal_p (op1, opb1)
 	  && simplify_gen_binary (MINUS, mode, opb0, op0) == const1_rtx)
 	return true;