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/* US Software GOFAST floating point library support.
Copyright (C) 1994, 1998, 1999, 2002, 2003 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* The US Software GOFAST library requires special optabs support.
This file is intended to be included by config/ARCH/ARCH.c. It
defines one function, gofast_maybe_init_libfuncs, which should be
called from the TARGET_INIT_LIBFUNCS hook. When tm.h has defined
US_SOFTWARE_GOFAST, this function will adjust all the optabs and
libfuncs appropriately. Otherwise it will do nothing. */
static void
gofast_maybe_init_libfuncs (void)
{
#ifdef US_SOFTWARE_GOFAST
int mode;
set_optab_libfunc (add_optab, SFmode, "fpadd");
set_optab_libfunc (add_optab, DFmode, "dpadd");
set_optab_libfunc (sub_optab, SFmode, "fpsub");
set_optab_libfunc (sub_optab, DFmode, "dpsub");
set_optab_libfunc (smul_optab, SFmode, "fpmul");
set_optab_libfunc (smul_optab, DFmode, "dpmul");
set_optab_libfunc (sdiv_optab, SFmode, "fpdiv");
set_optab_libfunc (sdiv_optab, DFmode, "dpdiv");
set_optab_libfunc (cmp_optab, SFmode, "fpcmp");
set_optab_libfunc (cmp_optab, DFmode, "dpcmp");
/* GOFAST does not provide libfuncs for negation, so we use the
standard names. */
/* GCC does not use fpcmp/dpcmp for gt or ge because its own
FP-emulation library returns +1 for both > and unord. So we
leave gt and ge unset, such that, instead of fpcmp(a,b) >[=], we
generate fpcmp(b,a) <[=] 0, which is unambiguous. For unord
libfuncs, we use our own functions, since GOFAST doesn't supply
them. */
set_optab_libfunc (eq_optab, SFmode, "fpcmp");
set_optab_libfunc (ne_optab, SFmode, "fpcmp");
set_optab_libfunc (gt_optab, SFmode, 0);
set_optab_libfunc (ge_optab, SFmode, 0);
set_optab_libfunc (lt_optab, SFmode, "fpcmp");
set_optab_libfunc (le_optab, SFmode, "fpcmp");
set_optab_libfunc (eq_optab, DFmode, "dpcmp");
set_optab_libfunc (ne_optab, DFmode, "dpcmp");
set_optab_libfunc (gt_optab, DFmode, 0);
set_optab_libfunc (ge_optab, DFmode, 0);
set_optab_libfunc (lt_optab, DFmode, "dpcmp");
set_optab_libfunc (le_optab, DFmode, "dpcmp");
set_conv_libfunc (sext_optab, DFmode, SFmode, "fptodp");
set_conv_libfunc (trunc_optab, SFmode, DFmode, "dptofp");
set_conv_libfunc (sfix_optab, SImode, SFmode, "fptosi");
set_conv_libfunc (sfix_optab, SImode, DFmode, "dptoli");
set_conv_libfunc (ufix_optab, SImode, SFmode, "fptoui");
set_conv_libfunc (ufix_optab, SImode, DFmode, "dptoul");
set_conv_libfunc (sfloat_optab, SFmode, SImode, "sitofp");
set_conv_libfunc (sfloat_optab, DFmode, DImode, "litodp");
#endif
}
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