loop-iv.c (iv_analyze_op): Use function_invariant_p, not CONSTANT_P, to test for GRD_INVARIANT.

	* loop-iv.c (iv_analyze_op): Use function_invariant_p, not CONSTANT_P,
	to test for GRD_INVARIANT.
	(simple_rhs_p): Anything that's function_invariant_p is fine.

From-SVN: r152226

gcc/ChangeLog

+2009-09-27  Bernd Schmidt  <bernd.schmidt@analog.com>
+
+	* loop-iv.c (iv_analyze_op): Use function_invariant_p, not CONSTANT_P,
+	to test for GRD_INVARIANT.
+	(simple_rhs_p): Anything that's function_invariant_p is fine.
+
 2009-09-27  Rafael Avila de Espindola  <espindola@google.com>
 
 	* gengtype.c (main): Use plunge_files instead of plugin_output.

gcc/loop-iv.c

@@ -1120,7 +1120,7 @@ iv_analyze_op (rtx insn, rtx op, struct rtx_iv *iv)
       print_rtl_single (dump_file, insn);
     }
 
-  if (CONSTANT_P (op))
+  if (function_invariant_p (op))
     res = GRD_INVARIANT;
   else if (GET_CODE (op) == SUBREG)
     {
@@ -1329,7 +1329,7 @@ simple_rhs_p (rtx rhs)
 {
   rtx op0, op1;
 
-  if (CONSTANT_P (rhs)
+  if (function_invariant_p (rhs)
       || (REG_P (rhs) && !HARD_REGISTER_P (rhs)))
     return true;