* loop.c: (invariant_p, case REG): hard_frame_pointer_rtx is invariant.

From-SVN: r5461

diff --git a/gcc/loop.c b/gcc/loop.c
index 989df7b119c7ec6e6d403a1e7567ab0a4aa2a3e3..6f68b58c5b3d8c9b2dc953abd765ff26b77b7301 100644 (file)
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -2661,7 +2661,8 @@ invariant_p (x)
     case REG:
       /* We used to check RTX_UNCHANGING_P (x) here, but that is invalid
         since the reg might be set by initialization within the loop.  */
-      if (x == frame_pointer_rtx || x == arg_pointer_rtx)
+      if (x == frame_pointer_rtx || x == hard_frame_pointer_rtx
+         || x == arg_pointer_rtx)
        return 1;
       if (loop_has_call
          && REGNO (x) < FIRST_PSEUDO_REGISTER && call_used_regs[REGNO (x)])