configure.ac (libgcc_cv_mips_hard_float): New.
libgcc/ * configure.ac (libgcc_cv_mips_hard_float): New. * configure: Regenerate. * config.host (mips*-*-*): Use t-hardfp-sfdf rather than t-softfp-sfdf for hard-float targets. * config/mips/t-mips (LIB2_SIDITI_CONV_FUNCS): Reinstate. (softfp_float_modes, softfp_int_modes, softfp_extensions) (softfp_truncations, softfp_exclude_libgcc2): New. * config/t-hardfp: New file. * config/t-hardfp-sfdf: Likewise. * config/hardfp.c: Likewise. From-SVN: r207593
This commit is contained in:
Richard Sandiford
Richard Sandiford
parent
6d6af79282
commit
1c51d6883a
8 changed files with 229 additions and 1 deletions
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@ -1,3 +1,16 @@
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2014-02-07 Richard Sandiford <rdsandiford@googlemail.com>
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* configure.ac (libgcc_cv_mips_hard_float): New.
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* configure: Regenerate.
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* config.host (mips*-*-*): Use t-hardfp-sfdf rather than
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t-softfp-sfdf for hard-float targets.
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* config/mips/t-mips (LIB2_SIDITI_CONV_FUNCS): Reinstate.
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(softfp_float_modes, softfp_int_modes, softfp_extensions)
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(softfp_truncations, softfp_exclude_libgcc2): New.
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* config/t-hardfp: New file.
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* config/t-hardfp-sfdf: Likewise.
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* config/hardfp.c: Likewise.
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2014-02-05 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
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* config.host: Include t-floattodi also for s390x.
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@ -142,7 +142,12 @@ microblaze*-*-*)
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mips*-*-*)
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# All MIPS targets provide a full set of FP routines.
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cpu_type=mips
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tmake_file="mips/t-mips t-softfp-sfdf"
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tmake_file="mips/t-mips"
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if test "${libgcc_cv_mips_hard_float}" = yes; then
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tmake_file="${tmake_file} t-hardfp-sfdf t-hardfp"
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else
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tmake_file="${tmake_file} t-softfp-sfdf"
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fi
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if test "${ac_cv_sizeof_long_double}" = 16; then
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tmake_file="${tmake_file} mips/t-softfp-tf"
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fi
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62
libgcc/config/hardfp.c
Normal file
62
libgcc/config/hardfp.c
Normal file
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@ -0,0 +1,62 @@
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/* Dummy floating-point routines for hard-float code.
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Copyright (C) 2014 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#define sf float
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#define df double
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#if defined (OP_add3)
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TYPE FUNC (TYPE x, TYPE y) { return x + y; }
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#elif defined (OP_sub3)
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TYPE FUNC (TYPE x, TYPE y) { return x - y; }
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#elif defined (OP_neg2)
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TYPE FUNC (TYPE x) { return -x; }
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#elif defined (OP_mul3)
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TYPE FUNC (TYPE x, TYPE y) { return x * y; }
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#elif defined (OP_div3)
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TYPE FUNC (TYPE x, TYPE y) { return x / y; }
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#elif defined (OP_eq2) || defined (OP_ne2)
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int FUNC (TYPE x, TYPE y) { return x == y ? 0 : 1; }
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#elif defined (OP_ge2)
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int FUNC (TYPE x, TYPE y) { return x >= y ? 0 : -1; }
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#elif defined (OP_gt2)
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int FUNC (TYPE x, TYPE y) { return x > y ? 1 : 0; }
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#elif defined (OP_le2)
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int FUNC (TYPE x, TYPE y) { return x <= y ? 0 : 1; }
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#elif defined (OP_lt2)
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int FUNC (TYPE x, TYPE y) { return x < y ? -1 : 0; }
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#elif defined (OP_unord2)
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int FUNC (TYPE x, TYPE y) { return __builtin_isunordered (x, y); }
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#elif defined (OP_fixsi)
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int FUNC (TYPE x) { return (int) x; }
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#elif defined (OP_floatsi)
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TYPE FUNC (int x) { return (TYPE) x; }
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#elif defined (OP_floatunsi)
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TYPE FUNC (unsigned int x) { return (TYPE) x; }
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#elif defined (OP_extendsf2)
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TYPE FUNC (float x) { return (TYPE) x; }
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#elif defined (OP_truncdf2)
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TYPE FUNC (double x) { return (TYPE) x; }
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#else
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#error Unknown operation
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#endif
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@ -1 +1,9 @@
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LIB2_SIDITI_CONV_FUNCS = yes
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softfp_float_modes :=
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softfp_int_modes := si di
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softfp_extensions :=
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softfp_truncations :=
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softfp_exclude_libgcc2 := n
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LIB2ADD_ST += $(srcdir)/config/mips/lib2funcs.c
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81
libgcc/config/t-hardfp
Normal file
81
libgcc/config/t-hardfp
Normal file
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@ -0,0 +1,81 @@
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# Copyright (C) 2014 Free Software Foundation, Inc.
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# This file is part of GCC.
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# GCC 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 3, or (at your option)
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# any later version.
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# GCC 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 GCC; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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# For historical reasons, some targets provide a full set of FP routines
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# even if there is native hardware support for some of them. This file
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# is used to define functions that can be implemented directly in hardware.
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# For example, an __adddf3 defined by this file will use an FPU addition.
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#
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# The following variables should be set up before including this file:
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#
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# hardfp_float_modes: a list of hardware floating-point modes.
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# e.g. sf df
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# hardfp_int_modes: a list of integer modes for which to define conversions;
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# usually this is "si", since libgcc2.c provides routines
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# for wider modes
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# hardfp_extensions: a list of extensions between hardware floating-point modes,
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# e.g. sfdf
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# hardfp_truncations: a list of truncations between hardware floating-point
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# modes, e.g. dfsf
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# Functions parameterized by a floating-point mode M.
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hardfp_func_bases := addM3 subM3 negM2 mulM3 divM3
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hardfp_func_bases += eqM2 neM2 geM2 gtM2 leM2 ltM2 unordM2
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# Functions parameterized by both a floating-point mode M and an integer mode N.
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hardfp_int_func_bases := fixMN floatNM floatunNM
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hardfp_func_bases += $(foreach n, $(hardfp_int_modes), \
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$(subst N,$(n),$(hardfp_int_func_bases)))
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# Get the full list of functions.
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hardfp_func_list := $(foreach m, $(hardfp_float_modes), \
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$(subst M,$(m),$(hardfp_func_bases)))
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hardfp_func_list += $(foreach pair, $(hardfp_extensions), \
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$(subst M,$(pair),extendM2))
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hardfp_func_list += $(foreach pair, $(hardfp_truncations), \
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$(subst M,$(pair),truncM2))
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# Regexp for matching a floating-point mode.
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hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /\\|/g')
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# Regexp for matching the end of a function name, after the last
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# floating-point mode.
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hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /\\|/g')
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# Add -D options to define:
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# FUNC: the function name (e.g. __addsf3)
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# OP: the function name without the leading __ and with the last
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# floating-point mode removed (e.g. add3)
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# TYPE: the last floating-point mode (e.g. sf)
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hardfp_defines_for = \
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$(shell echo $1 | \
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sed 's/\(.*\)\($(hardfp_mode_regexp)\)\($(hardfp_suffix_regexp)\|\)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/')
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hardfp-o = $(patsubst %,%$(objext),$(hardfp_func_list))
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$(hardfp-o): %$(objext): $(srcdir)/config/hardfp.c
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@echo "Mode = $(hardfp_mode_regexp)"
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@echo "Suffix = $(hardfp_suffix_regexp)"
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$(gcc_compile) $(call hardfp_defines_for, $*) -c $< $(vis_hide) -Wno-missing-prototypes
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libgcc-objects += $(hardfp-o)
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ifeq ($(enable_shared),yes)
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hardfp-s-o = $(patsubst %,%_s$(objext),$(hardfp_func_list))
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$(hardfp-s-o): %_s$(objext): $(srcdir)/config/hardfp.c
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$(gcc_s_compile) $(call hardfp_defines_for, $*) -c $< -Wno-missing-prototypes
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libgcc-s-objects += $(hardfp-s-o)
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endif
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23
libgcc/config/t-hardfp-sfdf
Normal file
23
libgcc/config/t-hardfp-sfdf
Normal file
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@ -0,0 +1,23 @@
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# Copyright (C) 2014 Free Software Foundation, Inc.
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# This file is part of GCC.
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# GCC 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 3, or (at your option)
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# any later version.
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# GCC 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 GCC; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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hardfp_float_modes := sf df
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# di and ti are provided by libgcc2.c where needed.
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hardfp_int_modes := si
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hardfp_extensions := sfdf
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hardfp_truncations := dfsf
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24
libgcc/configure
vendored
24
libgcc/configure
vendored
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@ -4330,6 +4330,30 @@ EOF
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eval `${CC-cc} -E conftest.c | grep host_address=`
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rm -f conftest.c
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case ${host} in
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mips*-*-*)
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target is hard-float" >&5
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$as_echo_n "checking whether the target is hard-float... " >&6; }
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if test "${libgcc_cv_mips_hard_float+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#ifndef __mips_hard_float
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#error FOO
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#endif
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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libgcc_cv_mips_hard_float=yes
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else
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libgcc_cv_mips_hard_float=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_mips_hard_float" >&5
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$as_echo "$libgcc_cv_mips_hard_float" >&6; }
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esac
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# Collect host-machine-specific information.
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. ${srcdir}/config.host
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@ -292,6 +292,18 @@ EOF
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eval `${CC-cc} -E conftest.c | grep host_address=`
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rm -f conftest.c
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case ${host} in
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mips*-*-*)
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AC_CACHE_CHECK([whether the target is hard-float],
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[libgcc_cv_mips_hard_float],
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[AC_COMPILE_IFELSE(
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[#ifndef __mips_hard_float
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#error FOO
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#endif],
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[libgcc_cv_mips_hard_float=yes],
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[libgcc_cv_mips_hard_float=no])])
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esac
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# Collect host-machine-specific information.
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. ${srcdir}/config.host
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