lambda-code.c (replace_uses_equiv_to_x_with_y): Verify the step is an…

lambda-code.c (replace_uses_equiv_to_x_with_y): Verify the step is an INTEGER_CST before calling int_cst_value.

2005-06-11  Daniel Berlin  <dberlin@dberlin.org>

	* lambda-code.c (replace_uses_equiv_to_x_with_y): Verify the step
	is an INTEGER_CST before calling int_cst_value.

From-SVN: r100839

gcc/ChangeLog

+2005-06-11  Daniel Berlin  <dberlin@dberlin.org>
+
+	* lambda-code.c (replace_uses_equiv_to_x_with_y): Verify the step
+	is an INTEGER_CST before calling int_cst_value.
+
 2005-06-10  Uros Bizjak  <uros@kss-loka.si>
 
 	PR target/21981

gcc/lambda-code.c

@@ -2184,7 +2184,9 @@ replace_uses_equiv_to_x_with_y (struct loop *loop, tree stmt, tree x,
 	(loop, analyze_scalar_evolution (loop, use));
       if (access_fn != NULL_TREE && access_fn != chrec_dont_know)
 	step = evolution_part_in_loop_num (access_fn, loop->num);
-      if ((step && step != chrec_dont_know && int_cst_value (step) == xstep)
+      if ((step && step != chrec_dont_know 
+	   && TREE_CODE (step) == INTEGER_CST
+	   && int_cst_value (step) == xstep)
 	  || USE_FROM_PTR (use_p) == x)
 	SET_USE (use_p, y);
     }