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Re: Cleanups for the m68k backend
On Sat, Jul 05, 2003 at 12:38:13PM -0400, Kaveh R. Ghazi wrote:
> 1. One option might be to use %O and extend ASM_OUTPUT_OPCODE to use
> print_operand for punctuation. If you do that then something like
> this:
>
> > asm_fprintf (stream,
> > #ifdef MOTOROLA
> > "\t%Omove.l %s,-(%Rsp)\n",
> > #else
> > "\tmovel %s,%Rsp@-\n",
> > #endif
> > reg_names[15 - i]);
The best option, IMO, is to stop using asm_fprintf so much,
and instead use output_asm_insn. Then, both cases would be
xops[0] = gen_rtx_REG (Pmode, i);
output_asm_insn ("move%.l %0,%-", xops);
Even better would be to update the m68k port to emit prologues
as rtl instead of as text. Yes, I know scheduling is more or
less pointless on these machines, but we'd like to eventually
*elimitate* prologue-as-text for maintainence, validation, and
other assorted reasons.
r~