Article View: gnu.gcc.bug
Article #1770bug in m68k gcc 1.29
From: Richard Stallman
Date: Tue, 11 Oct 1988 08:18
Date: Tue, 11 Oct 1988 08:18
35 lines
1801 bytes
1801 bytes
I think this change in push_reload (reload.c) fixes that bug.
Please try it.
(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. */
! 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. */
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<8810110818.AA00287@sugar-bombs.ai.mit.edu>Path:
arc1-ca.pugleaf.net!utzoo!telly!ddsw1!lll-winken!killer!mit-eddie!bloom-beacon!apple!rutgers!tut.cis.ohio-state.edu!WHEATIES.AI.MIT.EDU!rmsReferences:
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Path: arc1-ca.pugleaf.net!utzoo!telly!ddsw1!lll-winken!killer!mit-eddie!bloom-beacon!apple!rutgers!tut.cis.ohio-state.edu!WHEATIES.AI.MIT.EDU!rms From: rms@WHEATIES.AI.MIT.EDU (Richard Stallman) Newsgroups: gnu.gcc.bug Subject: bug in m68k gcc 1.29 Message-ID: <8810110818.AA00287@sugar-bombs.ai.mit.edu> Date: 11 Oct 88 08:18:49 GMT References: <8810102049.AA13844@moose.cita.toronto.edu> Sender: daemon@tut.cis.ohio-state.edu Distribution: gnu Organization: GNUs Not Usenet Lines: 34