109 lines
4.2 KiB
C
109 lines
4.2 KiB
C
/* US Software GOFAST floating point library support.
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Copyright (C) 1994, 1998, 1999, 2002 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This is used by fp-bit.c. */
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#define US_SOFTWARE_GOFAST
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/* The US Software GOFAST library requires special optabs support.
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There is no negation libcall, and several others have names different
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from gcc. This file consolidates the support in one place.
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The basic plan is to leave gcc proper alone and via some hook fix things
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after the optabs have been set up. Our main entry point is
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INIT_GOFAST_OPTABS. */
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#define INIT_GOFAST_OPTABS \
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do { \
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GOFAST_CLEAR_NEG_FLOAT_OPTAB; \
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GOFAST_RENAME_LIBCALLS; \
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} while (0)
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#define GOFAST_CLEAR_NEG_FLOAT_OPTAB \
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do { \
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int mode; \
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for (mode = SFmode; (int) mode <= (int) TFmode; \
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mode = (enum machine_mode) ((int) mode + 1)) \
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neg_optab->handlers[(int) mode].libfunc = NULL_RTX; \
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} while (0)
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/* GCC does not use fpcmp/dpcmp for gt or ge because its own
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FP-emulation library returns +1 for both > and unord. So we leave
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gt and ge unset, such that, instead of fpcmp(a,b) >[=], we generate
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fpcmp(b,a) <[=] 0, which is unambiguous. For unord libfuncs, we
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use our own functions, since GOFAST doesn't supply them. */
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#define GOFAST_RENAME_LIBCALLS \
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add_optab->handlers[(int) SFmode].libfunc = init_one_libfunc ("fpadd"); \
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add_optab->handlers[(int) DFmode].libfunc = init_one_libfunc ("dpadd"); \
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sub_optab->handlers[(int) SFmode].libfunc = init_one_libfunc ("fpsub"); \
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sub_optab->handlers[(int) DFmode].libfunc = init_one_libfunc ("dpsub"); \
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smul_optab->handlers[(int) SFmode].libfunc = init_one_libfunc ("fpmul"); \
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smul_optab->handlers[(int) DFmode].libfunc = init_one_libfunc ("dpmul"); \
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sdiv_optab->handlers[(int) SFmode].libfunc = init_one_libfunc ("fpdiv"); \
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sdiv_optab->handlers[(int) DFmode].libfunc = init_one_libfunc ("dpdiv"); \
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cmp_optab->handlers[(int) SFmode].libfunc = init_one_libfunc ("fpcmp"); \
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cmp_optab->handlers[(int) DFmode].libfunc = init_one_libfunc ("dpcmp"); \
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\
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extendsfdf2_libfunc = init_one_libfunc ("fptodp"); \
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truncdfsf2_libfunc = init_one_libfunc ("dptofp"); \
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\
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eqhf2_libfunc = NULL_RTX; \
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nehf2_libfunc = NULL_RTX; \
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gthf2_libfunc = NULL_RTX; \
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gehf2_libfunc = NULL_RTX; \
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lthf2_libfunc = NULL_RTX; \
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lehf2_libfunc = NULL_RTX; \
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\
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eqsf2_libfunc = init_one_libfunc ("fpcmp"); \
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nesf2_libfunc = init_one_libfunc ("fpcmp"); \
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gtsf2_libfunc = NULL_RTX; \
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gesf2_libfunc = NULL_RTX; \
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ltsf2_libfunc = init_one_libfunc ("fpcmp"); \
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lesf2_libfunc = init_one_libfunc ("fpcmp"); \
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\
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eqdf2_libfunc = init_one_libfunc ("dpcmp"); \
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nedf2_libfunc = init_one_libfunc ("dpcmp"); \
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gtdf2_libfunc = NULL_RTX; \
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gedf2_libfunc = NULL_RTX; \
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ltdf2_libfunc = init_one_libfunc ("dpcmp"); \
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ledf2_libfunc = init_one_libfunc ("dpcmp"); \
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\
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eqxf2_libfunc = NULL_RTX; \
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nexf2_libfunc = NULL_RTX; \
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gtxf2_libfunc = NULL_RTX; \
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gexf2_libfunc = NULL_RTX; \
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ltxf2_libfunc = NULL_RTX; \
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lexf2_libfunc = NULL_RTX; \
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\
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eqtf2_libfunc = NULL_RTX; \
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netf2_libfunc = NULL_RTX; \
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gttf2_libfunc = NULL_RTX; \
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getf2_libfunc = NULL_RTX; \
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lttf2_libfunc = NULL_RTX; \
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letf2_libfunc = NULL_RTX; \
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\
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floatsisf_libfunc = init_one_libfunc ("sitofp"); \
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floatsidf_libfunc = init_one_libfunc ("litodp"); \
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fixsfsi_libfunc = init_one_libfunc ("fptosi"); \
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fixdfsi_libfunc = init_one_libfunc ("dptoli"); \
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fixunssfsi_libfunc = init_one_libfunc ("fptoui"); \
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fixunsdfsi_libfunc = init_one_libfunc ("dptoul"); \
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/* End of GOFAST_RENAME_LIBCALLS */
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