Path: utzoo!telly!ddsw1!mcdchg!rutgers!mailrus!tut.cis.ohio-state.edu!WHEATIES.AI.MIT.EDU!rms
From: rms@WHEATIES.AI.MIT.EDU (Richard Stallman)
Newsgroups: gnu.gcc.bug
Subject: correction
Message-ID: <8810111920.AA01541@sugar-bombs.ai.mit.edu>
Date: 11 Oct 88 19:20:38 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 35

Here is a corrected change for push_reload (reload.c):

	    (out != 0 && MATCHES (reload_out[i], out)
	     && (in == 0 || reload_in[i] == 0 || MATCHES (reload_in[i], in)))))
      break;

  /* Reloading a plain reg for input can match a reload to postincrement
     that reg, since the postincrement's value is the right value.
     Likewise, it can match a preincrement reload, since we regard
     the preincrementation as happening before any ref in this insn
     to that register.  */
  if (i == n_reloads)
    for (i = 0; i < n_reloads; i++)
      if (reload_reg_class[i] == class
	  && reload_strict_low[i] == strict_low
	  && out == 0 && reload_out[i] == 0
	  && ((GET_CODE (in) == REG
	       && (GET_CODE (reload_in[i]) == POST_INC
		   || GET_CODE (reload_in[i]) == POST_DEC
		   || GET_CODE (reload_in[i]) == PRE_INC
		   || GET_CODE (reload_in[i]) == PRE_DEC)
	       && MATCHES (XEXP (reload_in[i], 0), in))
	      ||
	      (GET_CODE (reload_in[i]) == REG
	       && (GET_CODE (in) == POST_INC
		   || GET_CODE (in) == POST_DEC
		   || GET_CODE (in) == PRE_INC
		   || GET_CODE (in) == PRE_DEC)
	       && MATCHES (XEXP (in, 0), reload_in[i]))))
	break;

  if (i == n_reloads)
    {
      /* We found no existing reload suitable for re-use.
	 So add an additional reload.  */