Gunther Nikl <[EMAIL PROTECTED]> writes:
> Is EPILOGUE_USES only for the save and restore? I would have to add
> some big chunk of code to it and that would propagate to several
> places. It seems emitting a USE has lower impact.
EPILOGUE_USES doesn't emit code. It simply takes a register
On Wed, Aug 03, 2005 at 10:49:49AM -0700, Ian Lance Taylor wrote:
> Gunther Nikl <[EMAIL PROTECTED]> writes:
>
> > "Attempt to delete prologue/epilogue insn"
> >
> > unless the stackslot was marked with MEM_VOLATILE_P. I don't think thats
> > the proper fix.
>
> As Nathan said, you can add a U
On Wed, Aug 03, 2005 at 05:28:43PM +0200, Gunther Nikl wrote:
> Thank you. With "emit_insn (gen_rtx_USE (VOIDmode, reg))" the abort
> disappears. The same approach seems to fix the loads in the prologue.
> I hope that this is the correct solution.
No, it isn't. Your problem is that you havn
Gunther Nikl <[EMAIL PROTECTED]> writes:
> I am trying to add instructions into function prologue/epilogue. These
> instructions shall save and load "fixed" registers to avoid assembly.
>
> Register saving in the prologue appears to work. The restore code in the
> epilogue aborts in flow.c/propag
On Wed, Aug 03, 2005 at 03:50:09PM +0100, Nathan Sidwell wrote:
> Gunther Nikl wrote:
> >I am trying to add instructions into function prologue/epilogue. These
> >instructions shall save and load "fixed" registers to avoid assembly.
> >
> >Register saving in the prologue appears to work. The restor
Nathan Sidwell wrote:
you can add a (USE reg) after the restore in the prologue. Then flow
in the EPILOGUE, of course
considers the register, and the preceding load, to be live at that point.
nathan
--
Nathan Sidwell:: http://www.codesourcery.com :: CodeSourcery LLC
[EMAIL PROT
Gunther Nikl wrote:
Hello!
I am trying to add instructions into function prologue/epilogue. These
instructions shall save and load "fixed" registers to avoid assembly.
Register saving in the prologue appears to work. The restore code in the
epilogue aborts in flow.c/propagate_one_insn with
"
Hello!
I am trying to add instructions into function prologue/epilogue. These
instructions shall save and load "fixed" registers to avoid assembly.
Register saving in the prologue appears to work. The restore code in the
epilogue aborts in flow.c/propagate_one_insn with
"Attempt to delete prol
