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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [gofast.h] - Rev 433
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/* US Software GOFAST floating point library support. Copyright (C) 1994, 1998, 1999, 2002, 2003, 2004, 2007 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 3, 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 COPYING3. If not see <http://www.gnu.org/licenses/>. */ /* 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, SImode, "litodp"); #endif }
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