2005-05-24  Pat Haugen  <pthaugen@us.ibm.com>

	* loop.c (loop_invariant_p, valid_initial_value_p): Use regs_invalidated_by_call
	instead of call_used_regs.

Index: loop.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/loop.c,v
retrieving revision 1.529
diff -c -3 -p -r1.529 loop.c
*** loop.c	25 Apr 2005 12:46:10 -0000	1.529
--- loop.c	19 May 2005 17:55:23 -0000
*************** loop_invariant_p (const struct loop *loo
*** 3645,3651 ****
  	return 1;
  
        if (LOOP_INFO (loop)->has_call
! 	  && REGNO (x) < FIRST_PSEUDO_REGISTER && call_used_regs[REGNO (x)])
  	return 0;
  
        /* Out-of-range regs can occur when we are called from unrolling.
--- 3645,3652 ----
  	return 1;
  
        if (LOOP_INFO (loop)->has_call
! 	  && REGNO (x) < FIRST_PSEUDO_REGISTER
! 	  && TEST_HARD_REG_BIT (regs_invalidated_by_call, REGNO (x)))
  	return 0;
  
        /* Out-of-range regs can occur when we are called from unrolling.
*************** valid_initial_value_p (rtx x, rtx insn, 
*** 6719,6725 ****
       some machines, don't use any hard registers at all.  */
    if (REGNO (x) < FIRST_PSEUDO_REGISTER
        && (SMALL_REGISTER_CLASSES
! 	  || (call_used_regs[REGNO (x)] && call_seen)))
      return 0;
  
    /* Don't use registers that have been clobbered before the start of the
--- 6720,6726 ----
       some machines, don't use any hard registers at all.  */
    if (REGNO (x) < FIRST_PSEUDO_REGISTER
        && (SMALL_REGISTER_CLASSES
! 	  || (call_seen && TEST_HARD_REG_BIT (regs_invalidated_by_call, REGNO (x)))))
      return 0;
  
    /* Don't use registers that have been clobbered before the start of the