* Claudiu Zissulescu <claudiu.zissule...@synopsys.com> [2016-10-10 15:26:47
+0200]:
> Hi Andrew,
>
> This is updated patch of the original sent to mailing list some while ago.
>
> What is new:
> - Do not use MULTILIB_REUSE as its semantic changed, and the old one was
> causing issues while building.
> - Update invoke.texi documentation adding nps400 option to mcpu.
>
> This patch is important as it changes the way how we handle CPU
> variations and multilib support. It will be great if you can include
> this patch on your review list before any other one.
Sorry it's taken soooo long to review this patch.
In general I like this, and think it's a step in the right direction.
I have a few pretty minor concerns, but hopefully nothing too
contentious.
In general I like the use of the *.def files, but my only concern is
the lack of explanation in any of them about what they're for. It
would be nice if each had a summary of what each field represents to
make it easier to add new entries.
The use of arc_seen_options can, I think be replaced by using
global_opts_seen.x_target_flags, or maybe there's a detail I'm not
understanding, in which case maybe a comment somewhere to explain why
those two things are different.
The only thing I dislike in this patch is the switch from 'arc_cpu' to
a set of global boolean flags. I can't see why we'd ever want more
than one of those architecture flags to be true, so I'd rather we
switched back to an enum if that's possible.
[ I've left my review comments in line below too, but the above is a
summary of everything, there's nothing additional below. ]
Thanks,
Andrew
>
> Thanks,
> Claudiu
>
> gcc/
> 2016-05-09 Claudiu Zissulescu <claz...@synopsys.com>
>
> * config/arc/arc-arch.h: New file.
> * config/arc/arc-arches.def: Likewise.
> * config/arc/arc-cpus.def: Likewise.
> * config/arc/arc-options.def: Likewise.
> * config/arc/t-multilib: Likewise.
> * config/arc/genmultilib.awk: Likewise.
> * config/arc/genoptions.awk: Likewise.
> * config/arc/arc-tables.opt: Likewise.
> * config/arc/driver-arc.c: Likewise.
> * common/config/arc/arc-common.c (arc_handle_option): Trace
> toggled options.
> * config.gcc (arc*-*-*): Add arc-tables.opt to arc's extra
> options; check for supported cpu against arc-cpus.def file.
> (arc*-*-elf*, arc*-*-linux-uclibc*): Use new make fragment; define
> TARGET_CPU_BUILD macro; add driver-arc.o as an extra object.
> * config/arc/arc-c.def: Add emacs local variables.
> * config/arc/arc-opts.h (processor_type): Use arc-cpus.def file.
> (FPU_FPUS, FPU_FPUD, FPU_FPUDA, FPU_FPUDA_DIV, FPU_FPUDA_FMA)
> (FPU_FPUDA_ALL, FPU_FPUS_DIV, FPU_FPUS_FMA, FPU_FPUS_ALL)
> (FPU_FPUD_DIV, FPU_FPUD_FMA, FPU_FPUD_ALL): New defines.
> (DEFAULT_arc_fpu_build): Define.
> (DEFAULT_arc_mpy_option): Define.
> * config/arc/arc-protos.h (arc_init): Delete.
> * config/arc/arc.c (arc_cpu_name): New variable.
> (arc_selected_cpu, arc_selected_arch, arc_arcem, arc_archs)
> (arc_arc700, arc_arc600, arc_arc601): New variable.
> (arc_init): Add static; remove selection of default tune value,
> cleanup obsolete error messages.
> (arc_override_options): Make use of .def files for selecting the
> right cpu and option configurations.
> * config/arc/arc.h (stdbool.h): Include.
> (TARGET_CPU_DEFAULT): Define.
> (CPP_SPEC): Remove mcpu=NPS400 handling.
> (arc_cpu_to_as): Declare.
> (EXTRA_SPEC_FUNCTIONS): Define.
> (OPTION_DEFAULT_SPECS): Likewise.
> (ASM_DEFAULT): Remove.
> (ASM_SPEC): Use arc_cpu_to_as.
> (DRIVER_SELF_SPECS): Remove deprecated options.
> (arc_arc700, arc_arc600, arc_arc601, arc_arcem, arc_archs):
> Declare.
> (TARGET_ARC600, TARGET_ARC601, TARGET_ARC700, TARGET_EM)
> (TARGET_HS, TARGET_V2, TARGET_ARC600): Make them use arc_arc*
> variables.
> (MULTILIB_DEFAULTS): Use ARC_MULTILIB_CPU_DEFAULT.
> * config/arc/arc.md (attr_cpu): Remove.
> * config/arc/arc.opt (arc_mpy_option): Make it target variable.
> (mno-mpy): Deprecate.
> (mcpu=ARC600, mcpu=ARC601, mcpu=ARC700, mcpu=NPS400, mcpu=ARCEM)
> (mcpu=ARCHS): Remove.
> (mcrc, mdsp-packa, mdvbf, mmac-d16, mmac-24, mtelephony, mrtsc):
> Deprecate.
> (mbarrel_shifte, mspfp_, mdpfp_, mdsp_pack, mmac_): Remove.
> (arc_fpu): Use new defines.
> (arc_seen_options): New target variable.
> * config/arc/t-arc (driver-arc.o): New target.
> (arc-cpus, t-multilib, arc-tables.opt): Likewise.
> * config/arc/t-arc-newlib: Delete.
> * config/arc/t-arc-uClibc: Renamed to t-uClibc.
> * doc/invoke.texi (ARC): Update arc options.
> ---
> gcc/common/config/arc/arc-common.c | 162 ++++++++++++++++++++---------
> gcc/config.gcc | 47 +++++----
> gcc/config/arc/arc-arch.h | 120 ++++++++++++++++++++++
> gcc/config/arc/arc-arches.def | 35 +++++++
> gcc/config/arc/arc-c.def | 4 +
> gcc/config/arc/arc-cpus.def | 47 +++++++++
> gcc/config/arc/arc-options.def | 69 +++++++++++++
> gcc/config/arc/arc-opts.h | 47 +++++++--
> gcc/config/arc/arc-protos.h | 1 -
> gcc/config/arc/arc-tables.opt | 90 ++++++++++++++++
> gcc/config/arc/arc.c | 186 ++++++++++++++++++---------------
> gcc/config/arc/arc.h | 91 ++++++++---------
> gcc/config/arc/arc.md | 5 -
> gcc/config/arc/arc.opt | 109 ++++++--------------
> gcc/config/arc/driver-arc.c | 80 +++++++++++++++
> gcc/config/arc/genmultilib.awk | 203
> +++++++++++++++++++++++++++++++++++++
> gcc/config/arc/genoptions.awk | 86 ++++++++++++++++
> gcc/config/arc/t-arc | 19 ++++
> gcc/config/arc/t-arc-newlib | 46 ---------
> gcc/config/arc/t-arc-uClibc | 20 ----
> gcc/config/arc/t-multilib | 34 +++++++
> gcc/config/arc/t-uClibc | 20 ++++
> gcc/doc/invoke.texi | 90 +++++++++++++---
> 23 files changed, 1235 insertions(+), 376 deletions(-)
> create mode 100644 gcc/config/arc/arc-arch.h
> create mode 100644 gcc/config/arc/arc-arches.def
> create mode 100644 gcc/config/arc/arc-cpus.def
> create mode 100644 gcc/config/arc/arc-options.def
> create mode 100644 gcc/config/arc/arc-tables.opt
> create mode 100644 gcc/config/arc/driver-arc.c
> create mode 100644 gcc/config/arc/genmultilib.awk
> create mode 100644 gcc/config/arc/genoptions.awk
> delete mode 100644 gcc/config/arc/t-arc-newlib
> delete mode 100644 gcc/config/arc/t-arc-uClibc
> create mode 100644 gcc/config/arc/t-multilib
> create mode 100644 gcc/config/arc/t-uClibc
>
> diff --git a/gcc/common/config/arc/arc-common.c
> b/gcc/common/config/arc/arc-common.c
> index 5b687fb..2898860 100644
> --- a/gcc/common/config/arc/arc-common.c
> +++ b/gcc/common/config/arc/arc-common.c
> @@ -2,6 +2,7 @@
> Copyright (C) 1994-2016 Free Software Foundation, Inc.
> Contributor: Joern Rennecke <joern.renne...@embecosm.com>
> on behalf of Synopsys Inc.
> + Claudiu Zissulescu <claudiu.zissule...@synopsys.com>
>
> This file is part of GCC.
>
> @@ -61,17 +62,19 @@ static const struct default_options
> arc_option_optimization_table[] =
>
> /* Process options. */
> static bool
> -arc_handle_option (struct gcc_options *opts, struct gcc_options *opts_set,
> +arc_handle_option (struct gcc_options *opts,
> + struct gcc_options *opts_set ATTRIBUTE_UNUSED,
> const struct cl_decoded_option *decoded,
> location_t loc)
> {
> size_t code = decoded->opt_index;
> int value = decoded->value;
> const char *arg = decoded->arg;
> + static int mcpu_seen = PROCESSOR_NONE;
> + char *p;
>
> switch (code)
> {
> - static int mcpu_seen = PROCESSOR_NONE;
> case OPT_mcpu_:
> /* N.B., at this point arc_cpu has already been set to its new value by
> our caller, so comparing arc_cpu with PROCESSOR_NONE is pointless. */
> @@ -79,71 +82,130 @@ arc_handle_option (struct gcc_options *opts, struct
> gcc_options *opts_set,
> if (mcpu_seen != PROCESSOR_NONE && mcpu_seen != value)
> warning_at (loc, 0, "multiple -mcpu= options specified.");
> mcpu_seen = value;
> + break;
> +
> + case OPT_mmpy_option_:
> + p = ASTRDUP (arg);
>
> - switch (value)
> + if (!strcmp (p, "0")
> + || !strcmp (p, "none"))
> + opts->x_arc_mpy_option = 0;
> + else if (!strcmp (p, "1")
> + || !strcmp (p, "w"))
> {
> - case PROCESSOR_NPS400:
> - if (! (opts_set->x_TARGET_CASE_VECTOR_PC_RELATIVE) )
> - opts->x_TARGET_CASE_VECTOR_PC_RELATIVE = 1;
> - /* Fall through */
> - case PROCESSOR_ARC600:
> - case PROCESSOR_ARC700:
> - if (! (opts_set->x_target_flags & MASK_BARREL_SHIFTER) )
> - opts->x_target_flags |= MASK_BARREL_SHIFTER;
> - break;
> - case PROCESSOR_ARC601:
> - if (! (opts_set->x_target_flags & MASK_BARREL_SHIFTER) )
> - opts->x_target_flags &= ~MASK_BARREL_SHIFTER;
> - break;
> - case PROCESSOR_ARCHS:
> - if ( !(opts_set->x_target_flags & MASK_BARREL_SHIFTER))
> - opts->x_target_flags |= MASK_BARREL_SHIFTER; /* Default: on. */
> - if ( !(opts_set->x_target_flags & MASK_CODE_DENSITY))
> - opts->x_target_flags |= MASK_CODE_DENSITY; /* Default: on. */
> - if ( !(opts_set->x_target_flags & MASK_NORM_SET))
> - opts->x_target_flags |= MASK_NORM_SET; /* Default: on. */
> - if ( !(opts_set->x_target_flags & MASK_SWAP_SET))
> - opts->x_target_flags |= MASK_SWAP_SET; /* Default: on. */
> - if ( !(opts_set->x_target_flags & MASK_DIVREM))
> - opts->x_target_flags |= MASK_DIVREM; /* Default: on. */
> - break;
> -
> - case PROCESSOR_ARCEM:
> - if ( !(opts_set->x_target_flags & MASK_BARREL_SHIFTER))
> - opts->x_target_flags |= MASK_BARREL_SHIFTER; /* Default: on. */
> - if ( !(opts_set->x_target_flags & MASK_CODE_DENSITY))
> - opts->x_target_flags &= ~MASK_CODE_DENSITY; /* Default: off. */
> - if ( !(opts_set->x_target_flags & MASK_NORM_SET))
> - opts->x_target_flags &= ~MASK_NORM_SET; /* Default: off. */
> - if ( !(opts_set->x_target_flags & MASK_SWAP_SET))
> - opts->x_target_flags &= ~MASK_SWAP_SET; /* Default: off. */
> - if ( !(opts_set->x_target_flags & MASK_DIVREM))
> - opts->x_target_flags &= ~MASK_DIVREM; /* Default: off. */
> - break;
> - default:
> - gcc_unreachable ();
> + opts->x_arc_mpy_option = 1;
> + warning_at (loc, 0, "Unsupported value for mmpy-option");
> }
> + else if (!strcmp (p, "2")
> + || !strcmp (p, "mpy")
> + || !strcmp (p, "wlh1"))
> + opts->x_arc_mpy_option = 2;
> + else if (!strcmp (p, "3")
> + || !strcmp (p, "wlh2"))
> + opts->x_arc_mpy_option = 3;
> + else if (!strcmp (p, "4")
> + || !strcmp (p, "wlh3"))
> + opts->x_arc_mpy_option = 4;
> + else if (!strcmp (p, "5")
> + || !strcmp (p, "wlh4"))
> + opts->x_arc_mpy_option = 5;
> + else if (!strcmp (p, "6")
> + || !strcmp (p, "wlh5"))
> + opts->x_arc_mpy_option = 6;
> + else if (!strcmp (p, "7")
> + || !strcmp (p, "plus_dmpy"))
> + opts->x_arc_mpy_option = 7;
> + else if (!strcmp (p, "8")
> + || !strcmp (p, "plus_macd"))
> + opts->x_arc_mpy_option = 8;
> + else if (!strcmp (p, "9")
> + || !strcmp (p, "plus_qmacw"))
> + opts->x_arc_mpy_option = 9;
> + else
> + error_at (loc, "unknown value %qs for -mmpy-option", arg);
> +
> break;
>
> - case OPT_mmpy_option_:
> - if (value < 0 || value > 9)
> - error_at (loc, "bad value %qs for -mmpy-option switch", arg);
> + case OPT_mcode_density:
> + opts->x_arc_seen_options |= MASK_CODE_DENSITY;
> + break;
> +
> + case OPT_mdiv_rem:
> + opts->x_arc_seen_options |= MASK_DIVREM;
> + break;
> +
> + case OPT_mnorm:
> + opts->x_arc_seen_options |= MASK_NORM_SET;
> + break;
> +
> + case OPT_matomic:
> + opts->x_arc_seen_options |= MASK_ATOMIC;
> + break;
> +
> + case OPT_mll64:
> + opts->x_arc_seen_options |= MASK_LL64;
> + break;
> +
> + case OPT_mbarrel_shifter:
> + opts->x_arc_seen_options |= MASK_BARREL_SHIFTER;
> + break;
> +
> + case OPT_mswap:
> + opts->x_arc_seen_options |= MASK_SWAP_SET;
> + break;
> +
> + case OPT_mmul64:
> + opts->x_arc_seen_options |= MASK_MUL64_SET;
> + break;
> +
> + case OPT_mmul32x16:
> + opts->x_arc_seen_options |= MASK_MULMAC_32BY16_SET;
> + break;
> +
> + case OPT_mEA:
> + opts->x_arc_seen_options |= MASK_EA_SET;
> + break;
> +
> + case OPT_mspfp:
> + case OPT_mspfp_compact:
> + case OPT_mspfp_fast:
> + opts->x_arc_seen_options |= MASK_SPFP_COMPACT_SET;
> + break;
> +
> + case OPT_mdpfp:
> + case OPT_mdpfp_compact:
> + case OPT_mdpfp_fast:
> + opts->x_arc_seen_options |= MASK_DPFP_COMPACT_SET;
> + break;
> +
> + case OPT_margonaut:
> + opts->x_arc_seen_options |= MASK_ARGONAUT_SET;
> + break;
> +
> + case OPT_msimd:
> + opts->x_arc_seen_options |= MASK_SIMD_SET;
> + break;
I'd be interested to know if you considered making use of
opts_seen->x_target_flags instead of the new x_arc_seen_options? And
if you did, but rejected it, why it doesn't solve the problem. I
think making the switch would mean a lot of the new code above can
go.
> +
> + default:
> break;
> }
>
> return true;
> }
>
> +#undef TARGET_OPTION_INIT_STRUCT
> #define TARGET_OPTION_INIT_STRUCT arc_option_init_struct
> +
> +#undef TARGET_OPTION_OPTIMIZATION_TABLE
> #define TARGET_OPTION_OPTIMIZATION_TABLE arc_option_optimization_table
> -#define TARGET_HANDLE_OPTION arc_handle_option
>
> #define DEFAULT_NO_SDATA (TARGET_SDATA_DEFAULT ? 0 : MASK_NO_SDATA_SET)
>
> -/* We default to ARC700, which has the barrel shifter enabled. */
> -#define TARGET_DEFAULT_TARGET_FLAGS \
> - (MASK_BARREL_SHIFTER|MASK_VOLATILE_CACHE_SET|DEFAULT_NO_SDATA)
> +#undef TARGET_DEFAULT_TARGET_FLAGS
> +#define TARGET_DEFAULT_TARGET_FLAGS (DEFAULT_NO_SDATA |
> MASK_VOLATILE_CACHE_SET)
>
> +#undef TARGET_HANDLE_OPTION
> +#define TARGET_HANDLE_OPTION arc_handle_option
>
> #include "common/common-target-def.h"
>
> diff --git a/gcc/config.gcc b/gcc/config.gcc
> index 8fd07c5..50dca89 100644
> --- a/gcc/config.gcc
> +++ b/gcc/config.gcc
> @@ -318,6 +318,7 @@ arc*-*-*)
> cpu_type=arc
> c_target_objs="arc-c.o"
> cxx_target_objs="arc-c.o"
> + extra_options="${extra_options} arc/arc-tables.opt"
> ;;
> arm*-*-*)
> cpu_type=arm
> @@ -991,13 +992,12 @@ alpha*-dec-*vms*)
> ;;
> arc*-*-elf*)
> extra_headers="arc-simd.h"
> - tm_file="dbxelf.h elfos.h newlib-stdint.h ${tm_file}"
> - tmake_file="arc/t-arc-newlib arc/t-arc"
> - case x"${with_cpu}" in
> - xarc600|xarc601|xarc700)
> - target_cpu_default="TARGET_CPU_$with_cpu"
> - ;;
> - esac
> + tm_file="arc/arc-arch.h dbxelf.h elfos.h newlib-stdint.h ${tm_file}"
> + tmake_file="arc/t-multilib arc/t-arc"
> + extra_gcc_objs="driver-arc.o"
> + if test "x$with_cpu" != x; then
> + tm_defines="${tm_defines} TARGET_CPU_BUILD=PROCESSOR_$with_cpu"
> + fi
> if test x${with_endian} = x; then
> case ${target} in
> arc*be-*-* | arc*eb-*-*) with_endian=big ;;
> @@ -1014,15 +1014,14 @@ arc*-*-elf*)
> ;;
> arc*-*-linux-uclibc*)
> extra_headers="arc-simd.h"
> - tm_file="dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h ${tm_file}"
> - tmake_file="${tmake_file} arc/t-arc-uClibc arc/t-arc"
> + tm_file="arc/arc-arch.h dbxelf.h elfos.h gnu-user.h linux.h
> glibc-stdint.h ${tm_file}"
> + tmake_file="${tmake_file} arc/t-uClibc arc/t-arc"
> tm_defines="${tm_defines} TARGET_SDATA_DEFAULT=0"
> tm_defines="${tm_defines} TARGET_MMEDIUM_CALLS_DEFAULT=1"
> - case x"${with_cpu}" in
> - xarc600|xarc601|xarc700)
> - target_cpu_default="TARGET_CPU_$with_cpu"
> - ;;
> - esac
> + extra_gcc_objs="driver-arc.o"
> + if test "x$with_cpu" != x; then
> + tm_defines="${tm_defines} TARGET_CPU_BUILD=PROCESSOR_$with_cpu"
> + fi
> if test x${with_endian} = x; then
> case ${target} in
> arc*be-*-* | arc*eb-*-*) with_endian=big ;;
> @@ -3605,15 +3604,19 @@ case "${target}" in
> done
> ;;
>
> - arc*-*-*) # was: arc*-*-linux-uclibc)
> + arc*-*-*)
> supported_defaults="cpu"
> - case $with_cpu in
> - arc600|arc601|arc700)
> - ;;
> - *) echo "Unknown cpu type"
> - exit 1
> - ;;
> - esac
> +
> + if [ x"$with_cpu" = x ] \
> + || grep "^ARC_CPU ($with_cpu," \
> + ${srcdir}/config/arc/arc-cpus.def \
> + > /dev/null; then
> + # Ok
> + true
> + else
> + echo "Unknown cpu used in --with-cpu=$with_cpu" 1>&2
> + exit 1
> + fi
> ;;
>
> arm*-*-*)
> diff --git a/gcc/config/arc/arc-arch.h b/gcc/config/arc/arc-arch.h
> new file mode 100644
> index 0000000..7994543
> --- /dev/null
> +++ b/gcc/config/arc/arc-arch.h
> @@ -0,0 +1,120 @@
> +/* Definitions of types that are used to store ARC architecture and
> + device information.
> + Copyright (C) 2016 Free Software Foundation, Inc.
> + Contributed by Claudiu Zissulescu (claz...@synopsys.com)
> +
> +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/>. */
> +
> +#ifndef GCC_ARC_ARCH_H
> +#define GCC_ARC_ARCH_H
> +
> +#ifndef IN_LIBGCC2
> +/* Architecture selection types. */
> +
> +enum cpu_flags
> + {
> +#define ARC_OPT(NAME, CODE, MASK, DOC) NAME = CODE,
> +#define ARC_OPTX(NAME, CODE, VAR, VAL, DOC) NAME = CODE,
> +#include "arc-options.def"
> +#undef ARC_OPT
> +#undef ARC_OPTX
> + FL_END
> + };
> +
> +
> +/* ARC architecture variants. */
> +
> +enum base_architecture
> + {
> + BASE_ARCH_NONE,
> +#define ARC_ARCH(NAME, ARCH, FLAGS, DFLAGS) BASE_ARCH_##ARCH,
> +#include "arc-arches.def"
> +#undef ARC_ARCH
> + BASE_ARCH_END
> + };
> +
> +
> +/* Tune variants. Needs to match the attr_tune enum. */
> +
> +enum arc_tune_attr
> + {
> + ARC_TUNE_NONE,
> + ARC_TUNE_ARC600,
> + ARC_TUNE_ARC700_4_2_STD,
> + ARC_TUNE_ARC700_4_2_XMAC
> + };
> +
> +/* CPU specific properties. */
> +
> +typedef struct
> +{
> + /* CPU name. */
> + const char *const name;
> +
> + /* Architecture class. */
> + enum base_architecture arch;
> +
> + /* Specific flags. */
> + const unsigned long long flags;
> +
> + /* Tune value. */
> + enum arc_tune_attr tune;
> +} arc_cpu_t;
> +
> +
> +/* Architecture specific propoerties. */
> +
> +typedef struct
> +{
> + /* Architecture name. */
> + const char *const name;
> +
> + /* Architecture class. */
> + enum base_architecture arch;
> +
> + /* All allowed flags for this architecture. */
> + const unsigned long long flags;
> +
> + /* Default flags for this architecture. It is a subset of
> + FLAGS. */
> + const unsigned long long dflags;
> +} arc_arch_t;
> +
> +
> +
> +const arc_arch_t arc_arch_types[] =
> + {
> + {"none", BASE_ARCH_NONE, 0, 0},
> +#define ARC_ARCH(NAME, ARCH, FLAGS, DFLAGS) \
> + {NAME, BASE_ARCH_##ARCH, FLAGS, DFLAGS},
> +#include "arc-arches.def"
> +#undef ARC_ARCH
> + {NULL, BASE_ARCH_END, 0, 0}
> + };
> +
> +const arc_cpu_t arc_cpu_types[] =
> + {
> + {"none", BASE_ARCH_NONE, 0, ARC_TUNE_NONE},
> +#define ARC_CPU(NAME, ARCH, FLAGS, TUNE) \
> + {#NAME, BASE_ARCH_##ARCH, FLAGS, ARC_TUNE_##TUNE},
> +#include "arc-cpus.def"
> +#undef ARC_CPU
> + {NULL, BASE_ARCH_END, 0, ARC_TUNE_NONE}
> + };
> +
> +#endif
> +#endif /* GCC_ARC_ARCH_H */
> diff --git a/gcc/config/arc/arc-arches.def b/gcc/config/arc/arc-arches.def
> new file mode 100644
> index 0000000..bd76124
> --- /dev/null
> +++ b/gcc/config/arc/arc-arches.def
> @@ -0,0 +1,35 @@
> +/* ARC ARCH architectures.
> + Copyright (C) 2016 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/>. */
> +
> +ARC_ARCH ("arcem", em, FL_MPYOPT_1_6 | FL_DIVREM | FL_CD | FL_NORM \
> + | FL_BS | FL_SWAP | FL_FPUS | FL_SPFP | FL_DPFP \
> + | FL_SIMD | FL_FPUDA, 0)
> +ARC_ARCH ("archs", hs, FL_MPYOPT_7_9 | FL_DIVREM | FL_NORM | FL_CD \
> + | FL_ATOMIC | FL_LL64 | FL_BS | FL_SWAP \
> + | FL_FPUS | FL_FPUD, \
> + FL_CD | FL_ATOMIC | FL_BS | FL_NORM | FL_SWAP)
> +ARC_ARCH ("arc6xx", 6xx, FL_BS | FL_NORM | FL_SWAP | FL_MUL64 | FL_MUL32x16 \
> + | FL_SPFP | FL_ARGONAUT | FL_DPFP, 0)
> +ARC_ARCH ("arc700", 700, FL_ATOMIC | FL_BS | FL_NORM | FL_SWAP | FL_EA \
> + | FL_SIMD | FL_SPFP | FL_ARGONAUT | FL_DPFP, \
> + FL_BS | FL_NORM | FL_SWAP)
> +
> +/* Local Variables: */
> +/* mode: c */
> +/* End: */
> diff --git a/gcc/config/arc/arc-c.def b/gcc/config/arc/arc-c.def
> index 065e973..4cfd7b6 100644
> --- a/gcc/config/arc/arc-c.def
> +++ b/gcc/config/arc/arc-c.def
> @@ -66,3 +66,7 @@ ARC_C_DEF ("__EM__", TARGET_EM)
> ARC_C_DEF ("__HS__", TARGET_HS)
> ARC_C_DEF ("__Xnorm", TARGET_NORM)
> ARC_C_DEF ("__Xbarrel_shifter", TARGET_BARREL_SHIFTER)
> +
> +/* Local Variables: */
> +/* mode: c */
> +/* End: */
> diff --git a/gcc/config/arc/arc-cpus.def b/gcc/config/arc/arc-cpus.def
> new file mode 100644
> index 0000000..381507c
> --- /dev/null
> +++ b/gcc/config/arc/arc-cpus.def
> @@ -0,0 +1,47 @@
> +/* ARC CPU architectures.
> + Copyright (C) 2016 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/>. */
> +
> +ARC_CPU (em, em, 0, NONE)
> +ARC_CPU (arcem, em, FL_MPYOPT_2|FL_CD|FL_BS, NONE)
> +ARC_CPU (em4, em, FL_CD, NONE)
> +ARC_CPU (em4_dmips, em, FL_MPYOPT_2|FL_CD|FL_DIVREM|FL_NORM|FL_SWAP|FL_BS,
> NONE)
> +ARC_CPU (em4_fpus, em,
> FL_MPYOPT_2|FL_CD|FL_DIVREM|FL_NORM|FL_SWAP|FL_BS|FL_FPU_FPUS, NONE)
> +ARC_CPU (em4_fpuda, em,
> FL_MPYOPT_2|FL_CD|FL_DIVREM|FL_NORM|FL_SWAP|FL_BS|FL_FPU_FPUDA, NONE)
> +
> +ARC_CPU (hs, hs, 0, NONE)
> +ARC_CPU (archs, hs, FL_MPYOPT_2|FL_DIVREM|FL_LL64, NONE)
> +ARC_CPU (hs34, hs, FL_MPYOPT_2, NONE)
> +ARC_CPU (hs38, hs, FL_MPYOPT_9|FL_DIVREM|FL_LL64, NONE)
> +ARC_CPU (hs38_linux, hs, FL_MPYOPT_9|FL_DIVREM|FL_LL64|FL_FPU_FPUD_ALL, NONE)
> +
> +ARC_CPU (arc600, 6xx, FL_BS, ARC600)
> +ARC_CPU (arc600_norm, 6xx, FL_BS|FL_NORM, ARC600)
> +ARC_CPU (arc600_mul64, 6xx, FL_BS|FL_NORM|FL_MUL64, ARC600)
> +ARC_CPU (arc600_mul32x16, 6xx, FL_BS|FL_NORM|FL_MUL32x16, ARC600)
> +ARC_CPU (arc601, 6xx, 0, ARC600)
> +ARC_CPU (arc601_norm, 6xx, FL_NORM, ARC600)
> +ARC_CPU (arc601_mul64, 6xx, FL_NORM|FL_MUL64, ARC600)
> +ARC_CPU (arc601_mul32x16, 6xx, FL_NORM|FL_MUL32x16, ARC600)
> +
> +ARC_CPU (arc700, 700, 0, ARC700_4_2_STD)
> +ARC_CPU (nps400, 700, 0, ARC700_4_2_STD)
> +
> +/* Local Variables: */
> +/* mode: c */
> +/* End: */
> diff --git a/gcc/config/arc/arc-options.def b/gcc/config/arc/arc-options.def
> new file mode 100644
> index 0000000..083719a
> --- /dev/null
> +++ b/gcc/config/arc/arc-options.def
> @@ -0,0 +1,69 @@
> +/* ARC options.
> + Copyright (C) 2016 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/>. */
> +
> +ARC_OPT (FL_CD, (1ULL << 0), MASK_CODE_DENSITY, "code
> density")
> +ARC_OPT (FL_DIVREM, (1ULL << 1), MASK_DIVREM, "div/rem")
> +ARC_OPT (FL_NORM, (1ULL << 2), MASK_NORM_SET, "norm")
> +
> +ARC_OPT (FL_ATOMIC, (1ULL << 4), MASK_ATOMIC, "atomic")
> +ARC_OPT (FL_LL64, (1ULL << 5), MASK_LL64, "double
> load/store")
> +ARC_OPT (FL_BS, (1ULL << 6), MASK_BARREL_SHIFTER, "barrel
> shifter")
> +ARC_OPT (FL_SWAP, (1ULL << 7), MASK_SWAP_SET, "swap")
> +ARC_OPT (FL_MUL64, (1ULL << 8), MASK_MUL64_SET, "mul64")
> +ARC_OPT (FL_MUL32x16, (1ULL << 9), MASK_MULMAC_32BY16_SET, "mul32x16")
> +
> +ARC_OPT (FL_EA, (1ULL << 11), MASK_EA_SET, "extended
> arithmetics")
> +ARC_OPT (FL_SPFP, (1ULL << 12), MASK_SPFP_COMPACT_SET, "single
> precission FPX")
> +ARC_OPT (FL_DPFP, (1ULL << 13), MASK_DPFP_COMPACT_SET, "double
> precission FPX")
> +ARC_OPT (FL_ARGONAUT, (1ULL << 14), MASK_ARGONAUT_SET, "argonaut")
> +ARC_OPT (FL_SIMD, (1ULL << 15), MASK_SIMD_SET, "simd")
> +
> +ARC_OPTX (FL_MPYOPT_1, (1ULL << 17), arc_mpy_option, 1, "mpy option w")
> +ARC_OPTX (FL_MPYOPT_2, (1ULL << 18), arc_mpy_option, 2, "mpy option wlh1")
> +ARC_OPTX (FL_MPYOPT_3, (1ULL << 19), arc_mpy_option, 3, "mpy option wlh2")
> +ARC_OPTX (FL_MPYOPT_4, (1ULL << 20), arc_mpy_option, 4, "mpy option wlh3")
> +ARC_OPTX (FL_MPYOPT_5, (1ULL << 21), arc_mpy_option, 5, "mpy option wlh4")
> +ARC_OPTX (FL_MPYOPT_6, (1ULL << 22), arc_mpy_option, 6, "mpy option wlh5")
> +ARC_OPTX (FL_MPYOPT_7, (1ULL << 23), arc_mpy_option, 7, "mpy option
> plus_dmpy")
> +ARC_OPTX (FL_MPYOPT_8, (1ULL << 24), arc_mpy_option, 8, "mpy option
> plus_macd")
> +ARC_OPTX (FL_MPYOPT_9, (1ULL << 25), arc_mpy_option, 9, "mpy option
> plus_qmacw")
> +
> +ARC_OPT (FL_MPYOPT_7_9, (0x01c2ULL << 17), 0, "mpy option")
> +ARC_OPT (FL_MPYOPT_1_6, (0x003fULL << 17), 0, "mpy option")
> +
> +ARC_OPTX (FL_FPU_FPUS, (1ULL << 26), arc_fpu_build, FPU_FPUS,
> "mfpu=fpus")
> +ARC_OPTX (FL_FPU_FPUS_DIV, (1ULL << 27), arc_fpu_build, FPU_FPUS_DIV,
> "mfpu=fpus_div")
> +ARC_OPTX (FL_FPU_FPUS_FMA, (1ULL << 28), arc_fpu_build, FPU_FPUS_FMA,
> "mfpu=fpus_fma")
> +ARC_OPTX (FL_FPU_FPUS_ALL, (1ULL << 29), arc_fpu_build, FPU_FPUS_ALL,
> "mfpu=fpus_all")
> +ARC_OPTX (FL_FPU_FPUDA, (1ULL << 30), arc_fpu_build, FPU_FPUDA,
> "mfpu=fpuda")
> +ARC_OPTX (FL_FPU_FPUDA_DIV, (1ULL << 31), arc_fpu_build, FPU_FPUDA_DIV,
> "mfpu=fpuda_div")
> +ARC_OPTX (FL_FPU_FPUDA_FMA, (1ULL << 32), arc_fpu_build, FPU_FPUDA_FMA,
> "mfpu=fpuda_fma")
> +ARC_OPTX (FL_FPU_FPUDA_ALL, (1ULL << 33), arc_fpu_build, FPU_FPUDA_ALL,
> "mfpu=fpuda_all")
> +ARC_OPTX (FL_FPU_FPUD, (1ULL << 34), arc_fpu_build, FPU_FPUD,
> "mfpu=fpud")
> +ARC_OPTX (FL_FPU_FPUD_DIV, (1ULL << 35), arc_fpu_build, FPU_FPUD_DIV,
> "mfpu=fpud_div")
> +ARC_OPTX (FL_FPU_FPUD_FMA, (1ULL << 36), arc_fpu_build, FPU_FPUD_FMA,
> "mfpu=fpud_fma")
> +ARC_OPTX (FL_FPU_FPUD_ALL, (1ULL << 37), arc_fpu_build, FPU_FPUD_ALL,
> "mfpu=fpud_all")
> +
> +ARC_OPT (FL_FPUS, (0xFULL << 26), 0, "single precission floating point")
> +ARC_OPT (FL_FPUDA, (0xFFULL << 26), 0, "double precission fp assist")
> +ARC_OPT (FL_FPUD, (0xF0FULL << 26), 0, "double precission floating point")
> +
> +/* Local Variables: */
> +/* mode: c */
> +/* End: */
> diff --git a/gcc/config/arc/arc-opts.h b/gcc/config/arc/arc-opts.h
> index cbd7898..81446b4 100644
> --- a/gcc/config/arc/arc-opts.h
> +++ b/gcc/config/arc/arc-opts.h
> @@ -18,15 +18,16 @@
> along with GCC; see the file COPYING3. If not see
> <http://www.gnu.org/licenses/>. */
>
> +#ifndef ARC_OPTS_H
> +#define ARC_OPTS_H
> +
> enum processor_type
> {
> - PROCESSOR_NONE,
> - PROCESSOR_ARC600,
> - PROCESSOR_ARC601,
> - PROCESSOR_ARC700,
> - PROCESSOR_NPS400,
> - PROCESSOR_ARCEM,
> - PROCESSOR_ARCHS
> + PROCESSOR_NONE = 0,
> +#define ARC_CPU(NAME, ARCH, FLAGS, TUNE) PROCESSOR_##NAME,
> +#include "arc-cpus.def"
> +#undef ARC_CPU
> + PROCESSOR_generic
> };
>
> /* Single precision floating point. */
> @@ -48,3 +49,35 @@ enum processor_type
> /* Double precision floating point assist operations. */
> #define FPX_DP 0x0100
>
> +/* fpus option combi. */
> +#define FPU_FPUS (FPU_SP | FPU_SC)
> +/* fpud option combi. */
> +#define FPU_FPUD (FPU_SP | FPU_SC | FPU_DP | FPU_DC)
> +/* fpuda option combi. */
> +#define FPU_FPUDA (FPU_SP | FPU_SC | FPX_DP)
> +/* fpuda_div option combi. */
> +#define FPU_FPUDA_DIV (FPU_SP | FPU_SC | FPU_SD | FPX_DP)
> +/* fpuda_fma option combi. */
> +#define FPU_FPUDA_FMA (FPU_SP | FPU_SC | FPU_SF | FPX_DP)
> +/* fpuda_all option combi. */
> +#define FPU_FPUDA_ALL (FPU_SP | FPU_SC | FPU_SF | FPU_SD | FPX_DP)
> +/* fpus_div option combi. */
> +#define FPU_FPUS_DIV (FPU_SP | FPU_SC | FPU_SD)
> +/* fpus_fma option combi. */
> +#define FPU_FPUS_FMA (FPU_SP | FPU_SC | FPU_SF)
> +/* fpus_all option combi. */
> +#define FPU_FPUS_ALL (FPU_SP | FPU_SC | FPU_SF | FPU_SD)
> +/* fpud_div option combi. */
> +#define FPU_FPUD_DIV (FPU_FPUS_DIV | FPU_DP | FPU_DC | FPU_DD)
> +/* fpud_fma option combi. */
> +#define FPU_FPUD_FMA (FPU_FPUS_FMA | FPU_DP | FPU_DC | FPU_DF)
> +/* fpud_all option combi. */
> +#define FPU_FPUD_ALL (FPU_FPUS_ALL | FPU_DP | FPU_DC | FPU_DF | FPU_DD)
> +
> +/* Default FPU option value. */
> +#define DEFAULT_arc_fpu_build 0x10000000
> +
> +/* Default MPY option value. */
> +#define DEFAULT_arc_mpy_option -1
> +
> +#endif /* ARC_OPTS_H */
> diff --git a/gcc/config/arc/arc-protos.h b/gcc/config/arc/arc-protos.h
> index ad5d4d3..d1266b4 100644
> --- a/gcc/config/arc/arc-protos.h
> +++ b/gcc/config/arc/arc-protos.h
> @@ -52,7 +52,6 @@ extern enum arc_function_type arc_compute_function_type
> (struct function *);
> #endif /* TREE_CODE */
>
>
> -extern void arc_init (void);
> extern unsigned int arc_compute_frame_size (int);
> extern bool arc_ccfsm_branch_deleted_p (void);
> extern void arc_ccfsm_record_branch_deleted (void);
> diff --git a/gcc/config/arc/arc-tables.opt b/gcc/config/arc/arc-tables.opt
> new file mode 100644
> index 0000000..0e7c50c
> --- /dev/null
> +++ b/gcc/config/arc/arc-tables.opt
> @@ -0,0 +1,90 @@
> +; Auto-generated Makefile Snip
> +; Generated by : ./gcc/config/arc/genoptions.awk
> +; Generated from : ./gcc/config/arc/arc-cpu.def
> +;
> +; Copyright (C) 2016 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/>.
> +
> +Enum
> +Name(processor_type) Type(enum processor_type)
> +Known ARC CPUs (for use with the -mcpu= option):
> +
> +EnumValue
> +Enum(processor_type) String(em) Value(PROCESSOR_em)
> +
> +EnumValue
> +Enum(processor_type) String(arcem) Value(PROCESSOR_arcem)
> +
> +EnumValue
> +Enum(processor_type) String(em4) Value(PROCESSOR_em4)
> +
> +EnumValue
> +Enum(processor_type) String(em4_dmips) Value(PROCESSOR_em4_dmips)
> +
> +EnumValue
> +Enum(processor_type) String(em4_fpus) Value(PROCESSOR_em4_fpus)
> +
> +EnumValue
> +Enum(processor_type) String(em4_fpuda) Value(PROCESSOR_em4_fpuda)
> +
> +EnumValue
> +Enum(processor_type) String(hs) Value(PROCESSOR_hs)
> +
> +EnumValue
> +Enum(processor_type) String(archs) Value(PROCESSOR_archs)
> +
> +EnumValue
> +Enum(processor_type) String(hs34) Value(PROCESSOR_hs34)
> +
> +EnumValue
> +Enum(processor_type) String(hs38) Value(PROCESSOR_hs38)
> +
> +EnumValue
> +Enum(processor_type) String(hs38_linux) Value(PROCESSOR_hs38_linux)
> +
> +EnumValue
> +Enum(processor_type) String(arc600) Value(PROCESSOR_arc600)
> +
> +EnumValue
> +Enum(processor_type) String(arc600_norm) Value(PROCESSOR_arc600_norm)
> +
> +EnumValue
> +Enum(processor_type) String(arc600_mul64) Value(PROCESSOR_arc600_mul64)
> +
> +EnumValue
> +Enum(processor_type) String(arc600_mul32x16) Value(PROCESSOR_arc600_mul32x16)
> +
> +EnumValue
> +Enum(processor_type) String(arc601) Value(PROCESSOR_arc601)
> +
> +EnumValue
> +Enum(processor_type) String(arc601_norm) Value(PROCESSOR_arc601_norm)
> +
> +EnumValue
> +Enum(processor_type) String(arc601_mul64) Value(PROCESSOR_arc601_mul64)
> +
> +EnumValue
> +Enum(processor_type) String(arc601_mul32x16) Value(PROCESSOR_arc601_mul32x16)
> +
> +EnumValue
> +Enum(processor_type) String(arc700) Value(PROCESSOR_arc700)
> +
> +EnumValue
> +Enum(processor_type) String(nps400) Value(PROCESSOR_nps400)
> +
> +
> diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
> index 5e8d6b4..cfb3531 100644
> --- a/gcc/config/arc/arc.c
> +++ b/gcc/config/arc/arc.c
> @@ -64,7 +64,8 @@ along with GCC; see the file COPYING3. If not see
> #include "alias.h"
>
> /* Which cpu we're compiling for (ARC600, ARC601, ARC700). */
> -static const char *arc_cpu_string = "";
> +static char arc_cpu_name[10] = "";
> +static const char *arc_cpu_string = arc_cpu_name;
>
> /* ??? Loads can handle any constant, stores can only handle small ones. */
> /* OTOH, LIMMs cost extra, so their usefulness is limited. */
> @@ -241,6 +242,16 @@ static bool arc_use_by_pieces_infrastructure_p (unsigned
> HOST_WIDE_INT,
> enum by_pieces_operation op,
> bool);
>
> +static const arc_cpu_t *arc_selected_cpu;
> +static const arc_arch_t *arc_selected_arch;
> +
> +/* Global var which sets the current compilation architecture. */
> +bool arc_arcem = false;
> +bool arc_archs = false;
> +bool arc_arc700 = false;
> +bool arc_arc600 = false;
> +bool arc_arc601 = false;
> +
> /* Implements target hook vector_mode_supported_p. */
>
> static bool
> @@ -668,47 +679,9 @@ make_pass_arc_predicate_delay_insns (gcc::context *ctxt)
>
> /* Called by OVERRIDE_OPTIONS to initialize various things. */
>
> -void
> +static void
> arc_init (void)
> {
> - enum attr_tune tune_dflt = TUNE_NONE;
> -
> - switch (arc_cpu)
> - {
> - case PROCESSOR_ARC600:
> - arc_cpu_string = "ARC600";
> - tune_dflt = TUNE_ARC600;
> - break;
> -
> - case PROCESSOR_ARC601:
> - arc_cpu_string = "ARC601";
> - tune_dflt = TUNE_ARC600;
> - break;
> -
> - case PROCESSOR_ARC700:
> - arc_cpu_string = "ARC700";
> - tune_dflt = TUNE_ARC700_4_2_STD;
> - break;
> -
> - case PROCESSOR_NPS400:
> - arc_cpu_string = "NPS400";
> - tune_dflt = TUNE_ARC700_4_2_STD;
> - break;
> -
> - case PROCESSOR_ARCEM:
> - arc_cpu_string = "EM";
> - break;
> -
> - case PROCESSOR_ARCHS:
> - arc_cpu_string = "HS";
> - break;
> -
> - default:
> - gcc_unreachable ();
> - }
> -
> - if (arc_tune == TUNE_NONE)
> - arc_tune = tune_dflt;
> /* Note: arc_multcost is only used in rtx_cost if speed is true. */
> if (arc_multcost < 0)
> switch (arc_tune)
> @@ -739,18 +712,10 @@ arc_init (void)
> break;
> }
>
> - /* Support mul64 generation only for ARC600. */
> - if (TARGET_MUL64_SET && (!TARGET_ARC600_FAMILY))
> - error ("-mmul64 not supported for ARC700 or ARCv2");
> -
> /* MPY instructions valid only for ARC700 or ARCv2. */
> if (TARGET_NOMPY_SET && TARGET_ARC600_FAMILY)
> error ("-mno-mpy supported only for ARC700 or ARCv2");
>
> - /* mul/mac instructions only for ARC600. */
> - if (TARGET_MULMAC_32BY16_SET && (!TARGET_ARC600_FAMILY))
> - error ("-mmul32x16 supported only for ARC600 or ARC601");
> -
> if (!TARGET_DPFP && TARGET_DPFP_DISABLE_LRSR)
> error ("-mno-dpfp-lrsr supported only with -mdpfp");
>
> @@ -763,23 +728,11 @@ arc_init (void)
> if (TARGET_SPFP_FAST_SET && TARGET_ARC600_FAMILY)
> error ("-mspfp_fast not available on ARC600 or ARC601");
>
> - /* FPX-3. No FPX extensions on pre-ARC600 cores. */
> - if ((TARGET_DPFP || TARGET_SPFP)
> - && (!TARGET_ARCOMPACT_FAMILY && !TARGET_EM))
> - error ("FPX extensions not available on pre-ARC600 cores");
> -
> - /* FPX-4. No FPX extensions mixed with FPU extensions for ARC HS
> - cpus. */
> - if ((TARGET_DPFP || TARGET_SPFP)
> - && TARGET_HARD_FLOAT
> - && TARGET_HS)
> + /* FPX-4. No FPX extensions mixed with FPU extensions. */
> + if ((TARGET_DPFP_FAST_SET || TARGET_DPFP_COMPACT_SET || TARGET_SPFP)
> + && TARGET_HARD_FLOAT)
> error ("No FPX/FPU mixing allowed");
>
> - /* Only selected multiplier configurations are available for HS. */
> - if (TARGET_HS && ((arc_mpy_option > 2 && arc_mpy_option < 7)
> - || (arc_mpy_option == 1)))
> - error ("This multiplier configuration is not available for HS cores");
> -
> /* Warn for unimplemented PIC in pre-ARC700 cores, and disable flag_pic.
> */
> if (flag_pic && TARGET_ARC600_FAMILY)
> {
> @@ -789,26 +742,6 @@ arc_init (void)
> flag_pic = 0;
> }
>
> - if (TARGET_ATOMIC && !(TARGET_ARC700 || TARGET_HS))
> - error ("-matomic is only supported for ARC700 or ARC HS cores");
> -
> - /* ll64 ops only available for HS. */
> - if (TARGET_LL64 && !TARGET_HS)
> - error ("-mll64 is only supported for ARC HS cores");
> -
> - /* FPU support only for V2. */
> - if (TARGET_HARD_FLOAT)
> - {
> - if (TARGET_EM
> - && (arc_fpu_build & ~(FPU_SP | FPU_SF | FPU_SC | FPU_SD | FPX_DP)))
> - error ("FPU double precision options are available for ARC HS only");
> - if (TARGET_HS && (arc_fpu_build & FPX_DP))
> - error ("FPU double precision assist "
> - "options are not available for ARC HS");
> - if (!TARGET_HS && !TARGET_EM)
> - error ("FPU options are available for ARCv2 architecture only");
> - }
> -
> arc_init_reg_tables ();
>
> /* Initialize array for PRINT_OPERAND_PUNCT_VALID_P. */
> @@ -853,7 +786,92 @@ static void
> arc_override_options (void)
> {
> if (arc_cpu == PROCESSOR_NONE)
> - arc_cpu = PROCESSOR_ARC700;
> + arc_cpu = TARGET_CPU_DEFAULT;
> +
> + /* Set the default cpu options. */
> + arc_selected_cpu = &arc_cpu_types[(int) arc_cpu];
> + arc_selected_arch = &arc_arch_types[(int) arc_selected_cpu->arch];
> +
> + /* Set the architectures. */
> + switch (arc_selected_arch->arch)
> + {
> + case BASE_ARCH_em:
> + arc_arcem = true;
> + arc_cpu_string = "EM";
> + break;
> + case BASE_ARCH_hs:
> + arc_archs = true;
> + arc_cpu_string = "HS";
> + break;
> + case BASE_ARCH_700:
> + arc_arc700 = true;
> + arc_cpu_string = "ARC700";
> + break;
> + case BASE_ARCH_6xx:
> + arc_cpu_string = "ARC600";
> + if (arc_selected_cpu->flags & FL_BS)
> + arc_arc600 = true;
> + else
> + arc_arc601 = true;
> + break;
> + default:
> + gcc_unreachable ();
> + }
> +
> + /* Set cpu flags accordingly to architecture/selected cpu. The cpu
> + specific flags are set in arc-common.c. The architecture forces
> + the default hardware configurations in, regardless what command
> + line options are saying. The CPU optional hw options can be
> + turned on or off. */
> +#define ARC_OPT(NAME, CODE, MASK, DOC) \
> + do { \
> + if ((arc_selected_cpu->flags & CODE) \
> + && ((arc_seen_options & MASK) == 0)) \
> + target_flags |= MASK; \
I think replacing arc_seen_options with
'global_options_seeen.x_target_flags' achieves the same thing here.
> + if (arc_selected_arch->dflags & CODE) \
> + target_flags |= MASK; \
> + } while (0);
> +#define ARC_OPTX(NAME, CODE, VAR, VAL, DOC) \
> + do { \
> + if ((arc_selected_cpu->flags & CODE) \
> + && (VAR == DEFAULT_##VAR)) \
> + VAR = VAL; \
> + if (arc_selected_arch->dflags & CODE) \
> + VAR = VAL; \
> + } while (0);
> +
> +#include "arc-options.def"
> +
> +#undef ARC_OPTX
> +#undef ARC_OPT
> +
> + /* Check options against architecture options. Throw an error if
> + option is not allowed. */
> +#define ARC_OPTX(NAME, CODE, VAR, VAL, DOC) \
> + do { \
> + if ((VAR == VAL) \
> + && (!(arc_selected_arch->flags & CODE))) \
> + { \
> + error ("%s is not available for %s architecture", \
> + DOC, arc_selected_arch->name); \
> + } \
> + } while (0);
> +#define ARC_OPT(NAME, CODE, MASK, DOC) \
> + do { \
> + if ((target_flags & MASK) \
> + && (!(arc_selected_arch->flags & CODE))) \
> + error ("%s is not available for %s architecture", \
> + DOC, arc_selected_arch->name); \
> + } while (0);
> +
> +#include "arc-options.def"
> +
> +#undef ARC_OPTX
> +#undef ARC_OPT
> +
> + /* Set Tune option. */
> + if (arc_tune == TUNE_NONE)
> + arc_tune = (enum attr_tune) arc_selected_cpu->tune;
>
> if (arc_size_opt_level == 3)
> optimize_size = 1;
> diff --git a/gcc/config/arc/arc.h b/gcc/config/arc/arc.h
> index c02e1cd..f1705d5 100644
> --- a/gcc/config/arc/arc.h
> +++ b/gcc/config/arc/arc.h
> @@ -28,6 +28,8 @@ along with GCC; see the file COPYING3. If not see
> #ifndef GCC_ARC_H
> #define GCC_ARC_H
>
> +#include <stdbool.h>
> +
> /* Things to do:
>
> - incscc, decscc?
> @@ -39,6 +41,10 @@ along with GCC; see the file COPYING3. If not see
> #define SYMBOL_FLAG_LONG_CALL (SYMBOL_FLAG_MACH_DEP << 2)
> #define SYMBOL_FLAG_CMEM (SYMBOL_FLAG_MACH_DEP << 3)
>
> +#ifndef TARGET_CPU_DEFAULT
> +#define TARGET_CPU_DEFAULT PROCESSOR_arc700
> +#endif
> +
> /* Check if this symbol has a long_call attribute in its declaration */
> #define SYMBOL_REF_LONG_CALL_P(X) \
> ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_LONG_CALL) != 0)
> @@ -74,9 +80,11 @@ along with GCC; see the file COPYING3. If not see
> GNU_USER_TARGET_OS_CPP_BUILTINS (); \
> } \
> while (0)
> -#endif
>
> -/* Match the macros used in the assembler. */
> +#endif /* DEFAULT_LIBC == LIBC_UCLIBC */
> +
> +/* Macros enabled by specific command line option. FIXME: to be
> + deprecatd. */
> #define CPP_SPEC "\
> %{msimd:-D__Xsimd} %{mno-mpy:-D__Xno_mpy} %{mswap:-D__Xswap} \
> %{mmin-max:-D__Xmin_max} %{mEA:-D__Xea} \
> @@ -85,34 +93,22 @@ along with GCC; see the file COPYING3. If not see
> %{mdsp-packa:-D__Xdsp_packa} %{mcrc:-D__Xcrc} %{mdvbf:-D__Xdvbf} \
> %{mtelephony:-D__Xtelephony} %{mxy:-D__Xxy} %{mmul64: -D__Xmult32} \
> %{mlock:-D__Xlock} %{mswape:-D__Xswape} %{mrtsc:-D__Xrtsc} \
> -%{mcpu=NPS400:-D__NPS400__} \
> -%{mcpu=nps400:-D__NPS400__} \
> -"
> +%{mcpu=nps400:-D__NPS400__}"
>
> #define CC1_SPEC "\
> %{EB:%{EL:%emay not use both -EB and -EL}} \
> %{EB:-mbig-endian} %{EL:-mlittle-endian} \
> "
> +extern const char *arc_cpu_to_as (int argc, const char **argv);
> +
> +#define EXTRA_SPEC_FUNCTIONS \
> + { "cpu_to_as", arc_cpu_to_as },
> +
> +#define ASM_SPEC "%{mbig-endian|EB:-EB} %{EL} " \
> + "%:cpu_to_as(%{mcpu=*:%*}) %{mspfp*} %{mdpfp*} %{mfpu=fpuda*:-mfpuda}"
>
> -#define ASM_DEFAULT "-mARC700 -mEA"
> -
> -#define ASM_SPEC "\
> -%{mbig-endian|EB:-EB} %{EL} \
> -%{mcpu=ARC600:-mARC600} \
> -%{mcpu=ARC601:-mARC601} \
> -%{mcpu=ARC700:-mARC700} \
> -%{mcpu=ARC700:-mEA} \
> -%{!mcpu=*:" ASM_DEFAULT "} \
> -%{mbarrel-shifter} %{mno-mpy} %{mmul64} %{mmul32x16:-mdsp-packa} %{mnorm} \
> -%{mswap} %{mEA} %{mmin-max} %{mspfp*} %{mdpfp*} %{mfpu=fpuda*:-mfpuda} \
> -%{msimd} \
> -%{mmac-d16} %{mmac-24} %{mdsp-packa} %{mcrc} %{mdvbf} %{mtelephony} %{mxy} \
> -%{mcpu=ARC700|!mcpu=*:%{mlock}} \
> -%{mcpu=ARC700|!mcpu=*:%{mswape}} \
> -%{mcpu=ARC700|!mcpu=*:%{mrtsc}} \
> -%{mcpu=ARCHS:-mHS} \
> -%{mcpu=ARCEM:-mEM} \
> -%{matomic:-mlock}"
> +#define OPTION_DEFAULT_SPECS \
> + {"cpu", "%{!mcpu=*:%{!mARC*:%{!marc*:%{!mA7:%{!mA6:-mcpu=%(VALUE)}}}}}" }
>
> #if DEFAULT_LIBC == LIBC_UCLIBC
> /* Note that the default is to link against dynamic libraries, if they are
> @@ -196,17 +192,11 @@ along with GCC; see the file COPYING3. If not see
> #define TARGET_MMEDIUM_CALLS_DEFAULT 0
> #endif
>
> -#define DRIVER_SELF_SPECS DRIVER_ENDIAN_SELF_SPECS \
> - "%{mARC600|mA6: -mcpu=ARC600 %<mARC600 %<mA6}" \
> - "%{mARC601: -mcpu=ARC601 %<mARC601}" \
> - "%{mARC700|mA7: -mcpu=ARC700 %<mARC700 %<mA7}" \
> - "%{mbarrel_shifte*: -mbarrel-shifte%* %<mbarrel_shifte*}" \
> - "%{mEA: -mea %<mEA}" \
> - "%{mspfp_*: -mspfp-%* %<mspfp_*}" \
> - "%{mdpfp_*: -mdpfp-%* %<mdpfp_*}" \
> - "%{mdsp_pack*: -mdsp-pack%* %<mdsp_pack*}" \
> - "%{mmac_*: -mmac-%* %<mmac_*}" \
> - "%{multcost=*: -mmultcost=%* %<multcost=*}"
> +#define DRIVER_SELF_SPECS DRIVER_ENDIAN_SELF_SPECS \
> + "%{mARC600|mA6: -mcpu=arc600 %<mARC600 %<mA6 %<mARC600}" \
> + "%{mARC601: -mcpu=arc601 %<mARC601}" \
> + "%{mARC700|mA7: -mcpu=arc700 %<mARC700 %<mA7}" \
> + "%{mEA: -mea %<mEA}"
>
> /* Run-time compilation parameters selecting different hardware subsets. */
>
> @@ -252,20 +242,23 @@ along with GCC; see the file COPYING3. If not see
> use conditional execution? */
> #define TARGET_AT_DBR_CONDEXEC (!TARGET_ARC700 && !TARGET_V2)
>
> -#define TARGET_ARC600 (arc_cpu == PROCESSOR_ARC600)
> -#define TARGET_ARC601 (arc_cpu == PROCESSOR_ARC601)
> -#define TARGET_ARC700 (arc_cpu == PROCESSOR_ARC700 \
> - || arc_cpu == PROCESSOR_NPS400)
> -#define TARGET_EM (arc_cpu == PROCESSOR_ARCEM)
> -#define TARGET_HS (arc_cpu == PROCESSOR_ARCHS)
> -#define TARGET_V2 \
> - ((arc_cpu == PROCESSOR_ARCHS) || (arc_cpu == PROCESSOR_ARCEM))
> -
> -/* Recast the cpu class to be the cpu attribute. */
> -#define arc_cpu_attr ((enum attr_cpu)arc_cpu)
> -
> -#ifndef MULTILIB_DEFAULTS
> -#define MULTILIB_DEFAULTS { "mARC700" }
> +extern bool arc_arcem;
> +extern bool arc_archs;
> +extern bool arc_arc700;
> +extern bool arc_arc600;
> +extern bool arc_arc601;
> +
> +#define TARGET_ARC600 (arc_arc600)
> +#define TARGET_ARC601 (arc_arc601)
> +#define TARGET_ARC700 (arc_arc700)
> +#define TARGET_EM (arc_arcem)
> +#define TARGET_HS (arc_archs)
> +#define TARGET_V2 (TARGET_EM || TARGET_HS)
Can you expand a little on the motivation and benefits of switching
from one variable holding the cpu type to a set of independent flags?
Do you expect that multiple flags might be true at the same time? I
would think the model of having a single enum variable would be more
obvious and simpler to maintain.
> +
> +#ifdef ARC_MULTILIB_CPU_DEFAULT
> +# ifndef MULTILIB_DEFAULTS
> +# define MULTILIB_DEFAULTS { "mcpu=" ARC_MULTILIB_CPU_DEFAULT }
> +# endif
> #endif
>
> #ifndef UNALIGNED_ACCESS_DEFAULT
> diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md
> index 715da31..6f757b6 100644
> --- a/gcc/config/arc/arc.md
> +++ b/gcc/config/arc/arc.md
> @@ -231,11 +231,6 @@
> (eq_attr "is_CALL" "yes") (const_string "yes")]
> (const_string "no")))
>
> -
> -;; Attribute describing the processor
> -(define_attr "cpu" "none,ARC600,ARC700,ARCEM,ARCHS"
> - (const (symbol_ref "arc_cpu_attr")))
> -
> ;; true for compact instructions (those with _s suffix)
> ;; "maybe" means compact unless we conditionalize the insn.
> (define_attr "iscompact" "true,maybe,true_limm,maybe_limm,false"
> diff --git a/gcc/config/arc/arc.opt b/gcc/config/arc/arc.opt
> index 4caf366..1578549 100644
> --- a/gcc/config/arc/arc.opt
> +++ b/gcc/config/arc/arc.opt
> @@ -53,9 +53,12 @@ mARC700
> Target Report
> Same as -mA7.
>
> +TargetVariable
> +int arc_mpy_option = DEFAULT_arc_mpy_option
> +
> mmpy-option=
> -Target RejectNegative Joined UInteger Var(arc_mpy_option) Init(2)
> --mmpy-option={0,1,2,3,4,5,6,7,8,9} Compile ARCv2 code with a multiplier
> design option. Option 2 is default on.
> +Target RejectNegative Joined
> +-mmpy-option=MPY Compile ARCv2 code with a multiplier design option.
>
> mdiv-rem
> Target Report Mask(DIVREM)
> @@ -100,7 +103,7 @@ Target Report Mask(MUL64_SET)
> Generate mul64 and mulu64 instructions.
>
> mno-mpy
> -Target Report Mask(NOMPY_SET)
> +Target Report Mask(NOMPY_SET) Warn(%qs is deprecated)
> Do not generate mpy instructions for ARC700.
>
> mea
> @@ -167,45 +170,6 @@ mcpu=
> Target RejectNegative Joined Var(arc_cpu) Enum(processor_type)
> Init(PROCESSOR_NONE)
> -mcpu=CPU Compile code for ARC variant CPU.
>
> -Enum
> -Name(processor_type) Type(enum processor_type)
> -
> -EnumValue
> -Enum(processor_type) String(ARC600) Value(PROCESSOR_ARC600)
> -
> -EnumValue
> -Enum(processor_type) String(arc600) Value(PROCESSOR_ARC600)
> -
> -EnumValue
> -Enum(processor_type) String(ARC601) Value(PROCESSOR_ARC601)
> -
> -EnumValue
> -Enum(processor_type) String(arc601) Value(PROCESSOR_ARC601)
> -
> -EnumValue
> -Enum(processor_type) String(ARC700) Value(PROCESSOR_ARC700)
> -
> -EnumValue
> -Enum(processor_type) String(arc700) Value(PROCESSOR_ARC700)
> -
> -EnumValue
> -Enum(processor_type) String(nps400) Value(PROCESSOR_NPS400)
> -
> -EnumValue
> -Enum(processor_type) String(NPS400) Value(PROCESSOR_NPS400)
> -
> -EnumValue
> -Enum(processor_type) String(ARCEM) Value(PROCESSOR_ARCEM)
> -
> -EnumValue
> -Enum(processor_type) String(arcem) Value(PROCESSOR_ARCEM)
> -
> -EnumValue
> -Enum(processor_type) String(ARCHS) Value(PROCESSOR_ARCHS)
> -
> -EnumValue
> -Enum(processor_type) String(archs) Value(PROCESSOR_ARCHS)
> -
> msize-level=
> Target RejectNegative Joined UInteger Var(arc_size_opt_level) Init(-1)
> size optimization level: 0:none 1:opportunistic 2: regalloc 3:drop align,
> -Os.
> @@ -308,25 +272,25 @@ Expand adddi3 and subdi3 at rtl generation time into
> add.f / adc etc.
> ; Flags used by the assembler, but for which we define preprocessor
> ; macro symbols as well.
> mcrc
> -Target Report
> +Target Report Warn(%qs is deprecated)
> Enable variable polynomial CRC extension.
>
> mdsp-packa
> -Target Report
> +Target Report Warn(%qs is deprecated)
> Enable DSP 3.1 Pack A extensions.
>
> mdvbf
> -Target Report
> +Target Report Warn(%qs is deprecated)
> Enable dual viterbi butterfly extension.
>
> mmac-d16
> -Target Report Undocumented
> +Target Report Undocumented Warn(%qs is deprecated)
>
> mmac-24
> -Target Report Undocumented
> +Target Report Undocumented Warn(%qs is deprecated)
>
> mtelephony
> -Target Report RejectNegative
> +Target Report RejectNegative Warn(%qs is deprecated)
> Enable Dual and Single Operand Instructions for Telephony.
>
> mxy
> @@ -343,7 +307,7 @@ Target Report
> Enable swap byte ordering extension instruction.
>
> mrtsc
> -Target Report
> +Target Report Warn(%qs is deprecated)
> Enable 64-bit Time-Stamp Counter extension instruction.
>
> EB
> @@ -394,24 +358,6 @@ Target
> multcost=
> Target RejectNegative Joined
>
> -; Unfortunately, listing the full option name gives us clashes
> -; with OPT_opt_name being claimed for both opt_name and opt-name,
> -; so we leave out the last character or more.
> -mbarrel_shifte
> -Target Joined
> -
> -mspfp_
> -Target Joined
> -
> -mdpfp_
> -Target Joined
> -
> -mdsp_pack
> -Target Joined
> -
> -mmac_
> -Target Joined
> -
> matomic
> Target Report Mask(ATOMIC)
> Enable atomic instructions.
> @@ -421,47 +367,47 @@ Target Report Mask(LL64)
> Enable double load/store instructions for ARC HS.
>
> mfpu=
> -Target RejectNegative Joined Enum(arc_fpu) Var(arc_fpu_build) Init(0)
> +Target RejectNegative Joined Enum(arc_fpu) Var(arc_fpu_build)
> Init(DEFAULT_arc_fpu_build)
> Specify the name of the target floating point configuration.
>
> Enum
> Name(arc_fpu) Type(int)
>
> EnumValue
> -Enum(arc_fpu) String(fpus) Value(FPU_SP | FPU_SC)
> +Enum(arc_fpu) String(fpus) Value(FPU_FPUS)
>
> EnumValue
> -Enum(arc_fpu) String(fpud) Value(FPU_SP | FPU_SC | FPU_DP | FPU_DC)
> +Enum(arc_fpu) String(fpud) Value(FPU_FPUD)
>
> EnumValue
> -Enum(arc_fpu) String(fpuda) Value(FPU_SP | FPU_SC | FPX_DP)
> +Enum(arc_fpu) String(fpuda) Value(FPU_FPUDA)
>
> EnumValue
> -Enum(arc_fpu) String(fpuda_div) Value(FPU_SP | FPU_SC | FPU_SD | FPX_DP)
> +Enum(arc_fpu) String(fpuda_div) Value(FPU_FPUDA_DIV)
>
> EnumValue
> -Enum(arc_fpu) String(fpuda_fma) Value(FPU_SP | FPU_SC | FPU_SF | FPX_DP)
> +Enum(arc_fpu) String(fpuda_fma) Value(FPU_FPUDA_FMA)
>
> EnumValue
> -Enum(arc_fpu) String(fpuda_all) Value(FPU_SP | FPU_SC | FPU_SF | FPU_SD |
> FPX_DP)
> +Enum(arc_fpu) String(fpuda_all) Value(FPU_FPUDA_ALL)
>
> EnumValue
> -Enum(arc_fpu) String(fpus_div) Value(FPU_SP | FPU_SC | FPU_SD)
> +Enum(arc_fpu) String(fpus_div) Value(FPU_FPUS_DIV)
>
> EnumValue
> -Enum(arc_fpu) String(fpud_div) Value(FPU_SP | FPU_SC | FPU_SD | FPU_DP |
> FPU_DC | FPU_DD)
> +Enum(arc_fpu) String(fpud_div) Value(FPU_FPUD_DIV)
>
> EnumValue
> -Enum(arc_fpu) String(fpus_fma) Value(FPU_SP | FPU_SC | FPU_SF)
> +Enum(arc_fpu) String(fpus_fma) Value(FPU_FPUS_FMA)
>
> EnumValue
> -Enum(arc_fpu) String(fpud_fma) Value(FPU_SP | FPU_SC | FPU_SF | FPU_DP |
> FPU_DC | FPU_DF)
> +Enum(arc_fpu) String(fpud_fma) Value(FPU_FPUD_FMA)
>
> EnumValue
> -Enum(arc_fpu) String(fpus_all) Value(FPU_SP | FPU_SC | FPU_SF | FPU_SD)
> +Enum(arc_fpu) String(fpus_all) Value(FPU_FPUS_ALL)
>
> EnumValue
> -Enum(arc_fpu) String(fpud_all) Value(FPU_SP | FPU_SC | FPU_SF | FPU_SD |
> FPU_DP | FPU_DC | FPU_DF | FPU_DD)
> +Enum(arc_fpu) String(fpud_all) Value(FPU_FPUD_ALL)
>
> mtp-regno=
> Target RejectNegative Joined UInteger Var(arc_tp_regno) Init(25)
> @@ -481,3 +427,6 @@ Enable use of NPS400 xld/xst extension.
> munaligned-access
> Target Report Var(unaligned_access) Init(UNALIGNED_ACCESS_DEFAULT)
> Enable unaligned word and halfword accesses to packed data.
> +
> +TargetVariable
> +unsigned int arc_seen_options = 0
> diff --git a/gcc/config/arc/driver-arc.c b/gcc/config/arc/driver-arc.c
> new file mode 100644
> index 0000000..c51b708
> --- /dev/null
> +++ b/gcc/config/arc/driver-arc.c
> @@ -0,0 +1,80 @@
> +/* Subroutines for the gcc driver.
> + Copyright (C) 2016 Free Software Foundation, Inc.
> + Contributed by Claudiu Zissulescu <claz...@synopsys.com>
> +
> + 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/>. */
> +
> +#include "config.h"
> +#include "system.h"
> +#include "coretypes.h"
> +#include "tm.h"
> +
> +/* Returns command line parameters to pass to as. */
> +
> +const char*
> +arc_cpu_to_as (int argc, const char **argv)
> +{
> + const char *name = NULL;
> + const arc_cpu_t *arc_selected_cpu;
> +
> + /* No argument, check what is the default cpu. */
> + if (argc == 0)
> + {
> + arc_selected_cpu = &arc_cpu_types[(int) TARGET_CPU_DEFAULT];
> + }
> + else
> + {
> + name = argv[0];
> + for (arc_selected_cpu = arc_cpu_types; arc_selected_cpu->name;
> + arc_selected_cpu++)
> + {
> + if (strcmp (arc_selected_cpu->name, name) == 0)
> + break;
> + }
> + }
> +
> + /* Checking the flags is only required with the old binutils
> + tools. */
I don't understand what this comment is telling me.
> + switch (arc_selected_cpu->arch)
> + {
> + case BASE_ARCH_em:
> + if (arc_selected_cpu->flags & FL_CD)
> + name = "-mcode-density";
> + else
> + name = "";
> + if (arc_selected_cpu->flags & FL_FPUDA)
> + name = concat ("-mfpuda ", name, NULL);
> + if (arc_selected_cpu->flags & FL_SPFP)
> + name = concat ("-mspfp ", name, NULL);
> + if (arc_selected_cpu->flags & FL_DPFP)
> + name = concat ("-mdpfp ", name, NULL);
> + return concat ("-mcpu=arcem ", name, NULL);
> + case BASE_ARCH_hs:
> + return "-mcpu=archs";
> + case BASE_ARCH_700:
> + return "-mcpu=arc700 -mEA";
> + case BASE_ARCH_6xx:
> + if (arc_selected_cpu->flags & FL_MUL64)
> + return "-mcpu=arc600 -mmul64 -mnorm";
> + if (arc_selected_cpu->flags & FL_MUL32x16)
> + return "-mcpu=arc600 -mdsp-packa -mnorm";
> + return "-mcpu=arc600 -mnorm";
> + default:
> + gcc_unreachable ();
> + }
> + return NULL;
> +}
> diff --git a/gcc/config/arc/genmultilib.awk b/gcc/config/arc/genmultilib.awk
> new file mode 100644
> index 0000000..5934f4f
> --- /dev/null
> +++ b/gcc/config/arc/genmultilib.awk
> @@ -0,0 +1,203 @@
> +# Copyright (C) 2016 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/>.
> +
> +##################################################################
> +#
> +# This file is using AVR's genmultilib.awk idea.
> +# Transform CPU Information from arc-cpu.def to a
> +# Representation that is understood by GCC's multilib Machinery.
> +#
> +# The Script works as a Filter from STDIN to STDOUT.
> +#
> +# FORMAT = "Makefile": Generate Makefile Snipet that sets some
> +# MULTILIB_* Variables as needed.
> +#
> +##################################################################
> +
> +BEGIN {
> + FS ="[(, \t)]+"
> + comment = 1
> + n_cores = 0
> + n_reuse = 0
> +}
> +
> +##################################################################
> +# Add some Comments to the generated Files and copy-paste
> +# Copyright Notice from above.
> +##################################################################
> +/^#/ {
> + if (!comment)
> + next
> + else if (comment == 1)
> + {
> + if (FORMAT == "Makefile")
> + {
> + print "# Auto-generated Makefile Snip"
> + print "# Generated by : ./gcc/config/arc/genmultilib.awk"
> + print "# Generated from : ./gcc/config/arc/arc-cpu.def"
> + print "# Used by : tmake_file from Makefile and genmultilib"
> + print ""
> + }
> + }
> +
> + comment = 2;
> +
> + print
> +}
> +
> +/^$/ {
> + # The first empty line stops copy-pasting the GPL comments
> + # from this file to the generated file.
> +
> + comment = 0
> +}
> +
> +
> +/^ARC_CPU/ {
> + name = $2
> + # gsub ("\"", "", name)
> +
> + if ($4 != "0")
> + {
> + arch = $3
> + if (arch == "6xx")
> + arch = 601
> +
> + n = split ($4, cpu_flg, "|")
> +
> + line = "mcpu." arch
> + for (i = 1; i <= n; i++)
> + {
> + if (cpu_flg[i] == "FL_MPYOPT_0")
> + line = line "/mmpy-option.0"
> + else if (cpu_flg[i] == "FL_MPYOPT_1")
> + line = line "/mmpy-option.1"
> + else if (cpu_flg[i] == "FL_MPYOPT_2")
> + line = line "/mmpy-option.2"
> + else if (cpu_flg[i] == "FL_MPYOPT_3")
> + line = line "/mmpy-option.3"
> + else if (cpu_flg[i] == "FL_MPYOPT_4")
> + line = line "/mmpy-option.4"
> + else if (cpu_flg[i] == "FL_MPYOPT_5")
> + line = line "/mmpy-option.5"
> + else if (cpu_flg[i] == "FL_MPYOPT_6")
> + line = line "/mmpy-option.6"
> + else if (cpu_flg[i] == "FL_MPYOPT_7")
> + line = line "/mmpy-option.7"
> + else if (cpu_flg[i] == "FL_MPYOPT_8")
> + line = line "/mmpy-option.8"
> + else if (cpu_flg[i] == "FL_MPYOPT_9")
> + line = line "/mmpy-option.9"
> + else if (cpu_flg[i] == "FL_CD")
> + line = line "/mcode-density"
> + else if (cpu_flg[i] == "FL_BS")
> + line = line "/mbarrel-shifter"
> + else if (cpu_flg[i] == "FL_DIVREM")
> + line = line "/mdiv-rem"
> + else if (cpu_flg[i] == "FL_NORM" \
> + || cpu_flg[i] == "FL_SWAP")
> + line = line "/mnorm"
> + else if (cpu_flg[i] == "FL_FPU_FPUS")
> + line = line "/mfpu.fpus"
> + else if (cpu_flg[i] == "FL_FPU_FPUDA")
> + line = line "/mfpu.fpuda"
> + else if (cpu_flg[i] == "FL_FPU_FPUD_ALL")
> + line = line "/mfpu.fpud_all"
> + else if (cpu_flg[i] == "FL_LL64")
> + line = line "/mll64"
> + else if (cpu_flg[i] == "FL_MUL64")
> + line = line "/mmul64"
> + else if (cpu_flg[i] == "FL_MUL32x16")
> + line = line "/mmul32x16"
> + else if (cpu_flg[i] == "FL_FPX_QUARK")
> + line = line "/quark"
> + else if (cpu_flg[i] == "FL_SPFP")
> + line = line "/spfp"
> + else if (cpu_flg[i] == "FL_DPFP")
> + line = line "/dpfp"
> + else
> + {
> + print "Don't know the flag " cpu_flg[i] > "/dev/stderr"
> + exit 1
> + }
> + }
> + line = "mcpu." name "=" line
> + reuse[n_reuse] = line
> + n_reuse++
> + }
> +
> + core = name
> + cores[n_cores] = core
> + n_cores++
> +}
> +
> +##################################################################
> +#
> +# We gathered all the Information, now build/output the following:
> +#
> +# awk Variable target Variable FORMAT
> +# -----------------------------------------------------------
> +# m_options <-> MULTILIB_OPTIONS Makefile
> +# m_dirnames <-> MULTILIB_DIRNAMES "
> +#
> +##################################################################
> +
> +END {
> + m_options = "\nMULTILIB_OPTIONS = "
> + m_dirnames = "\nMULTILIB_DIRNAMES ="
> + m_reuse = "\nMULTILIB_REUSE ="
> +
> + sep = ""
> + for (c = 0; c < n_cores; c++)
> + {
> + m_options = m_options sep "mcpu=" cores[c]
> + m_dirnames = m_dirnames " " cores[c]
> + sep = "/"
> + }
> +
> + sep = ""
> + for (c = 0; c < n_reuse; c++)
> + {
> + m_reuse = m_reuse sep reuse[c]
> + sep = "\nMULTILIB_REUSE +="
> + }
> + ############################################################
> + # Output that Stuff
> + ############################################################
> +
> + if (FORMAT == "Makefile")
> + {
> + # Intended Target: ./gcc/config/arc/t-multilib
> +
> + print m_options
> + print m_dirnames
> +
> + ############################################################
> + # Legacy Aliases
> + ############################################################
> +
> + print ""
> + print "# Aliases:"
> + print "MULTILIB_MATCHES = mcpu?arc600=mcpu?ARC600"
> + print "MULTILIB_MATCHES += mcpu?arc600=mARC600"
> + print "MULTILIB_MATCHES += mcpu?arc600=mA6"
> + print "MULTILIB_MATCHES += mcpu?arc601=mcpu?ARC601"
> + print "MULTILIB_MATCHES += mcpu?arc700=mA7"
> + print "MULTILIB_MATCHES += mcpu?arc700=mARC700"
> + }
> +}
> diff --git a/gcc/config/arc/genoptions.awk b/gcc/config/arc/genoptions.awk
> new file mode 100644
> index 0000000..24a93eb
> --- /dev/null
> +++ b/gcc/config/arc/genoptions.awk
> @@ -0,0 +1,86 @@
> +# Copyright (C) 2016 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/>.
> +
> +##################################################################
> +#
> +# This file is using AVR's genmultilib.awk idea.
> +#
> +##################################################################
> +
> +BEGIN {
> + FS ="[(, \t)]+"
> + comment = 1
> + n_cores = 0
> +}
> +
> +##################################################################
> +# Add some Comments to the generated Files and copy-paste
> +# Copyright Notice from above.
> +##################################################################
> +/^#/ {
> + if (!comment)
> + next
> + else if (comment == 1)
> + {
> + if (FORMAT == "Makefile")
> + {
> + print "; Auto-generated Makefile Snip"
> + print "; Generated by : ./gcc/config/arc/genoptions.awk"
> + print "; Generated from : ./gcc/config/arc/arc-cpu.def"
> + print ";"
> + }
> + }
> +
> + comment = 2;
> +
> + gsub ("^#", ";", $0)
> + print
> +}
> +
> +/^$/ {
> + # The first empty line stops copy-pasting the GPL comments
> + # from this file to the generated file.
> + comment = 0
> +}
> +
> +/^ARC_CPU/ {
> + name = $2
> + cores[n_cores] = name;
> + n_cores++
> +}
> +
> +END {
> + m_option = ""
> + for (c = 0; c < n_cores; c++)
> + {
> + m_options = m_options "EnumValue\nEnum(processor_type) String(" \
> + cores[c] ") Value(PROCESSOR_" cores[c] ")\n\n"
> + }
> +
> + ############################################################
> + # Output that Stuff
> + ############################################################
> +
> + if (FORMAT == "Makefile")
> + {
> + print "\nEnum"
> + print "Name(processor_type) Type(enum processor_type)"
> + print "Known ARC CPUs (for use with the -mcpu= option):\n"
> + print m_options
> + }
> +}
> diff --git a/gcc/config/arc/t-arc b/gcc/config/arc/t-arc
> index 4252e73..bdb1328 100644
> --- a/gcc/config/arc/t-arc
> +++ b/gcc/config/arc/t-arc
> @@ -19,11 +19,30 @@
>
> TM_H += $(srcdir)/config/arc/arc-c.def
>
> +driver-arc.o: $(srcdir)/config/arc/driver-arc.c \
> + $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H)
> + $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<
> +
> arc-c.o: $(srcdir)/config/arc/arc-c.c $(CONFIG_H) $(SYSTEM_H) \
> $(TREE_H) $(TM_H) $(TM_P_H) coretypes.h
> $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
> $(srcdir)/config/arc/arc-c.c
>
> +#Run `arc-cpus` if you changed something in arc-cpus.def
> +
> +.PHONY: arc-cpus
> +
> +arc-cpus: $(srcdir)/config/arc/t-multilib \
> + $(srcdir)/config/arc/arc-tables.opt
> +
> +$(srcdir)/config/arc/t-multilib: $(srcdir)/config/arc/genmultilib.awk
> \
> + $(srcdir)/config/arc/arc-cpus.def
> + $(AWK) -f $< -v FORMAT=Makefile $< $(srcdir)/config/arc/arc-cpus.def >
> $@
> +
> +$(srcdir)/config/arc/arc-tables.opt: $(srcdir)/config/arc/genoptions.awk \
> + $(srcdir)/config/arc/arc-cpus.def
> + $(AWK) -f $< -v FORMAT=Makefile $< $(srcdir)/config/arc/arc-cpus.def >
> $@
> +
> # Local Variables:
> # mode: Makefile
> # End:
> diff --git a/gcc/config/arc/t-arc-newlib b/gcc/config/arc/t-arc-newlib
> deleted file mode 100644
> index c49a3fcc..0000000
> --- a/gcc/config/arc/t-arc-newlib
> +++ /dev/null
> @@ -1,46 +0,0 @@
> -# GCC Makefile fragment for Synopsys DesignWare ARC with newlib.
> -
> -# Copyright (C) 2007-2016 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/>.
> -
> -MULTILIB_OPTIONS=mcpu=ARC600/mcpu=ARC601/mcpu=ARC700/mcpu=ARCEM/mcpu=ARCHS
> mmul64/mmul32x16 mnorm
> -MULTILIB_DIRNAMES=arc600 arc601 arc700 em hs mul64 mul32x16 norm
> -#
> -# Aliases:
> -MULTILIB_MATCHES = mcpu?ARC600=mcpu?arc600
> -MULTILIB_MATCHES += mcpu?ARC600=mARC600
> -MULTILIB_MATCHES += mcpu?ARC600=mA6
> -MULTILIB_MATCHES += mcpu?ARC600=mno-mpy
> -MULTILIB_MATCHES += mcpu?ARC601=mcpu?arc601
> -MULTILIB_MATCHES += mcpu?ARC700=mA7
> -MULTILIB_MATCHES += mcpu?ARC700=mARC700
> -MULTILIB_MATCHES += mcpu?ARC700=mcpu?arc700
> -MULTILIB_MATCHES += mcpu?ARCEM=mcpu?arcem
> -MULTILIB_MATCHES += mcpu?ARCHS=mcpu?archs
> -MULTILIB_MATCHES += EL=mlittle-endian
> -MULTILIB_MATCHES += EB=mbig-endian
> -#
> -# These don't make sense for the ARC700 default target:
> -MULTILIB_EXCEPTIONS=mmul64* mmul32x16* norm*
> -# And neither of the -mmul* options make sense without -mnorm:
> -MULTILIB_EXCLUSIONS=mARC600/mmul64/!mnorm mcpu=ARC601/mmul64/!mnorm
> mARC600/mmul32x16/!mnorm
> -# Exclusions for ARC700
> -MULTILIB_EXCEPTIONS += mcpu=ARC700/mnorm* mcpu=ARC700/mmul64*
> mcpu=ARC700/mmul32x16*
> -# Exclusions for ARCv2EM
> -MULTILIB_EXCEPTIONS += mcpu=ARCEM/mmul64* mcpu=ARCEM/mmul32x16*
> -# Exclusions for ARCv2HS
> -MULTILIB_EXCEPTIONS += mcpu=ARCHS/mmul64* mcpu=ARCHS/mmul32x16*
> mcpu=ARCHS/mnorm*
> diff --git a/gcc/config/arc/t-arc-uClibc b/gcc/config/arc/t-arc-uClibc
> deleted file mode 100644
> index 11e81f1..0000000
> --- a/gcc/config/arc/t-arc-uClibc
> +++ /dev/null
> @@ -1,20 +0,0 @@
> -# GCC Makefile fragment for Synopsys DesignWare ARC with uClibc
> -
> -# Copyright (C) 2007-2016 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/>.
> -
> -MULTILIB_EXTRA_OPTS = mno-sdata
> diff --git a/gcc/config/arc/t-multilib b/gcc/config/arc/t-multilib
> new file mode 100644
> index 0000000..5a36af6
> --- /dev/null
> +++ b/gcc/config/arc/t-multilib
> @@ -0,0 +1,34 @@
> +# Auto-generated Makefile Snip
> +# Generated by : ./gcc/config/arc/genmultilib.awk
> +# Generated from : ./gcc/config/arc/arc-cpu.def
> +# Used by : tmake_file from Makefile and genmultilib
> +
> +# Copyright (C) 2016 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/>.
> +
> +MULTILIB_OPTIONS =
> mcpu=em/mcpu=arcem/mcpu=em4/mcpu=em4_dmips/mcpu=em4_fpus/mcpu=em4_fpuda/mcpu=hs/mcpu=archs/mcpu=hs34/mcpu=hs38/mcpu=hs38_linux/mcpu=arc600/mcpu=arc600_norm/mcpu=arc600_mul64/mcpu=arc600_mul32x16/mcpu=arc601/mcpu=arc601_norm/mcpu=arc601_mul64/mcpu=arc601_mul32x16/mcpu=arc700/mcpu=nps400
> +
> +MULTILIB_DIRNAMES = em arcem em4 em4_dmips em4_fpus em4_fpuda hs archs hs34
> hs38 hs38_linux arc600 arc600_norm arc600_mul64 arc600_mul32x16 arc601
> arc601_norm arc601_mul64 arc601_mul32x16 arc700 nps400
> +
> +# Aliases:
> +MULTILIB_MATCHES = mcpu?arc600=mcpu?ARC600
> +MULTILIB_MATCHES += mcpu?arc600=mARC600
> +MULTILIB_MATCHES += mcpu?arc600=mA6
> +MULTILIB_MATCHES += mcpu?arc601=mcpu?ARC601
> +MULTILIB_MATCHES += mcpu?arc700=mA7
> +MULTILIB_MATCHES += mcpu?arc700=mARC700
> diff --git a/gcc/config/arc/t-uClibc b/gcc/config/arc/t-uClibc
> new file mode 100644
> index 0000000..11e81f1
> --- /dev/null
> +++ b/gcc/config/arc/t-uClibc
> @@ -0,0 +1,20 @@
> +# GCC Makefile fragment for Synopsys DesignWare ARC with uClibc
> +
> +# Copyright (C) 2007-2016 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/>.
> +
> +MULTILIB_EXTRA_OPTS = mno-sdata
> diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> index 3f9c0a0..4399733 100644
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -13882,29 +13882,92 @@ values for @var{cpu} are
> @table @samp
> @opindex mA6
> @opindex mARC600
> -@item ARC600
> @item arc600
> Compile for ARC600. Aliases: @option{-mA6}, @option{-mARC600}.
>
> -@item ARC601
> @item arc601
> @opindex mARC601
> Compile for ARC601. Alias: @option{-mARC601}.
>
> -@item ARC700
> @item arc700
> @opindex mA7
> @opindex mARC700
> Compile for ARC700. Aliases: @option{-mA7}, @option{-mARC700}.
> This is the default when configured with @option{--with-cpu=arc700}@.
>
> -@item ARCEM
> @item arcem
> Compile for ARC EM.
>
> -@item ARCHS
> @item archs
> Compile for ARC HS.
> +
> +@item em
> +@opindex em
> +Compile for ARC EM cpu with no hardware extension.
> +
> +@item em4
> +@opindex em4
> +Compile for ARC EM4 cpu.
> +
> +@item em4_dmips
> +@opindex em4_dmips
> +Compile for ARC EM4 DMIPS cpu.
> +
> +@item em4_fpus
> +@opindex em4_fpus
> +Compile for ARC EM4 DMIPS cpu with single precision floating point
> +extension.
> +
> +@item em4_fpuda
> +@opindex em4_fpuda
> +Compile for ARC EM4 DMIPS cpu with single precision floating point and
> +double assists instructions.
> +
> +@item hs
> +@opindex hs
> +Compile for ARC HS cpu with no hardware extension, except the atomic
> +instructions.
> +
> +@item hs34
> +@opindex hs34
> +Compile for ARC HS34 cpu.
> +
> +@item hs38
> +@opindex hs38
> +Compile for ARC HS38 cpu.
> +
> +@item hs38_linux
> +@opindex hs38_linux
> +Compile for ARC HS38 cpu with all hardware extensions on.
> +
> +@item arc600_norm
> +@opindex arc600_norm
> +Compile for ARC 600 cpu with norm instruction enabled.
> +
> +@item arc600_mul32x16
> +@opindex arc600_mul32x16
> +Compile for ARC 600 cpu with norm and mul32x16 instructions enabled.
> +
> +@item arc600_mul64
> +@opindex arc600_mul64
> +Compile for ARC 600 cpu with norm and mul64 instructions enabled.
> +
> +@item arc601_norm
> +@opindex arc601_norm
> +Compile for ARC 601 cpu with norm instruction enabled.
> +
> +@item arc601_mul32x16
> +@opindex arc601_mul32x16
> +Compile for ARC 601 cpu with norm and mul32x16 instructions enabled.
> +
> +@item arc601_mul64
> +@opindex arc601_mul64
> +Compile for ARC 601 cpu with norm and mul64 instructions enabled.
> +
> +@item nps400
> +@opindex nps400
> +Compile for ARC 700 on NPS400 chip.
> +
> @end table
>
> @item -mdpfp
> @@ -13931,7 +13994,8 @@ supported. This is always enabled for
> @option{-mcpu=ARC700}.
>
> @item -mno-mpy
> @opindex mno-mpy
> -Do not generate mpy instructions for ARC700.
> +Do not generate mpy instructions for ARC700. This instruction is
> +deprecated.
>
> @item -mmul32x16
> @opindex mmul32x16
> @@ -14138,12 +14202,14 @@ define preprocessor macro symbols.
> @item -mdsp-packa
> @opindex mdsp-packa
> Passed down to the assembler to enable the DSP Pack A extensions.
> -Also sets the preprocessor symbol @code{__Xdsp_packa}.
> +Also sets the preprocessor symbol @code{__Xdsp_packa}. This option is
> +deprecated.
>
> @item -mdvbf
> @opindex mdvbf
> Passed down to the assembler to enable the dual viterbi butterfly
> -extension. Also sets the preprocessor symbol @code{__Xdvbf}.
> +extension. Also sets the preprocessor symbol @code{__Xdvbf}. This
> +option is deprecated.
>
> @c ARC700 4.10 extension instruction
> @item -mlock
> @@ -14155,19 +14221,19 @@ Conditional extension. Also sets the preprocessor
> symbol
> @item -mmac-d16
> @opindex mmac-d16
> Passed down to the assembler. Also sets the preprocessor symbol
> -@code{__Xxmac_d16}.
> +@code{__Xxmac_d16}. This option is deprecated.
>
> @item -mmac-24
> @opindex mmac-24
> Passed down to the assembler. Also sets the preprocessor symbol
> -@code{__Xxmac_24}.
> +@code{__Xxmac_24}. This option is deprecated.
>
> @c ARC700 4.10 extension instruction
> @item -mrtsc
> @opindex mrtsc
> Passed down to the assembler to enable the 64-bit Time-Stamp Counter
> extension instruction. Also sets the preprocessor symbol
> -@code{__Xrtsc}.
> +@code{__Xrtsc}. This option is deprecated.
>
> @c ARC700 4.10 extension instruction
> @item -mswape
> @@ -14180,7 +14246,7 @@ extension instruction. Also sets the preprocessor
> symbol
> @opindex mtelephony
> Passed down to the assembler to enable dual and single operand
> instructions for telephony. Also sets the preprocessor symbol
> -@code{__Xtelephony}.
> +@code{__Xtelephony}. This option is deprecated.
>
> @item -mxy
> @opindex mxy
> --
> 1.9.1
>
