晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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/* Copyright (C) 2020-2021 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.

   Under Section 7 of GPL version 3, you are granted additional
   permissions described in the GCC Runtime Library Exception, version
   3.1, as published by the Free Software Foundation.

   You should have received a copy of the GNU General Public License and
   a copy of the GCC Runtime Library Exception along with this program;
   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
   <http://www.gnu.org/licenses/>.  */

#if !defined _IMMINTRIN_H_INCLUDED
#error "Never use <amxtileintrin.h> directly; include <immintrin.h> instead."
#endif

#ifndef _AMXTILEINTRIN_H_INCLUDED
#define _AMXTILEINTRIN_H_INCLUDED

#if !defined(__AMX_TILE__)
#pragma GCC push_options
#pragma GCC target("amx-tile")
#define __DISABLE_AMX_TILE__
#endif /* __AMX_TILE__ */

#if defined(__x86_64__)
extern __inline void
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_tile_loadconfig (const void *__config)
{
  __builtin_ia32_ldtilecfg (__config);
}

extern __inline void
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_tile_storeconfig (void *__config)
{
  __builtin_ia32_sttilecfg (__config);
}

extern __inline void
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_tile_release (void)
{
  __asm__ volatile ("tilerelease" ::);
}

#define _tile_loadd(dst,base,stride)		\
  _tile_loadd_internal (dst, base, stride)

#define _tile_loadd_internal(dst,base,stride)				\
  __asm__ volatile							\
  ("{tileloadd\t(%0,%1,1), %%tmm"#dst"|tileloadd\t%%tmm"#dst", [%0+%1*1]}" \
   :: "r" ((const void*) (base)), "r" ((long) (stride)))

#define _tile_stream_loadd(dst,base,stride)		\
  _tile_stream_loadd_internal (dst, base, stride)

#define _tile_stream_loadd_internal(dst,base,stride)			\
  __asm__ volatile							\
  ("{tileloaddt1\t(%0,%1,1), %%tmm"#dst"|tileloaddt1\t%%tmm"#dst", [%0+%1*1]}" \
   :: "r" ((const void*) (base)), "r" ((long) (stride)))

#define _tile_stored(dst,base,stride)		\
  _tile_stored_internal (dst, base, stride)

#define _tile_stored_internal(src,base,stride)				\
  __asm__ volatile							\
  ("{tilestored\t%%tmm"#src", (%0,%1,1)|tilestored\t[%0+%1*1], %%tmm"#src"}" \
   :: "r" ((void*) (base)), "r" ((long) (stride)) \
   : "memory")

#define _tile_zero(dst)				\
  _tile_zero_internal (dst)

#define _tile_zero_internal(dst)		\
  __asm__ volatile				\
  ("tilezero\t%%tmm"#dst ::)

#endif

#ifdef __DISABLE_AMX_TILE__
#undef __DISABLE_AMX_TILE__
#pragma GCC pop_options
#endif /* __DISABLE_AMX_TILE__ */

#endif /* _AMXTILEINTRIN_H_INCLUDED */