diff options
Diffstat (limited to 'sysdeps/s390/multiarch/8bit-generic.c')
| -rw-r--r-- | sysdeps/s390/multiarch/8bit-generic.c | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/sysdeps/s390/multiarch/8bit-generic.c b/sysdeps/s390/multiarch/8bit-generic.c deleted file mode 100644 index 49f0ed8ae5..0000000000 --- a/sysdeps/s390/multiarch/8bit-generic.c +++ /dev/null @@ -1,398 +0,0 @@ -/* Generic conversion to and from 8bit charsets - S390 version. - Copyright (C) 2016-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#if defined HAVE_S390_VX_ASM_SUPPORT - -# if defined HAVE_S390_VX_GCC_SUPPORT -# define ASM_CLOBBER_VR(NR) , NR -# else -# define ASM_CLOBBER_VR(NR) -# endif - -/* Generate the conversion loop routines without vector instructions as - fallback, if vector instructions aren't available at runtime. */ -# define IGNORE_ICONV_SKELETON -# define from_generic __from_generic_c -# define to_generic __to_generic_c -# include "iconvdata/8bit-generic.c" -# undef IGNORE_ICONV_SKELETON -# undef from_generic -# undef to_generic - -/* Generate the converion routines with vector instructions. The vector - routines can only be used with charsets where the maximum UCS4 value - fits in 1 byte size. Then the hardware translate-instruction is used - to translate between multiple generic characters and "1 byte UCS4" - characters at once. The vector instructions are used to convert between - the "1 byte UCS4" and UCS4. */ -# include <ifunc-resolve.h> - -# undef FROM_LOOP -# undef TO_LOOP -# define FROM_LOOP __from_generic_vx -# define TO_LOOP __to_generic_vx - -# define MIN_NEEDED_FROM 1 -# define MIN_NEEDED_TO 4 -# define ONE_DIRECTION 0 - -/* First define the conversion function from the 8bit charset to UCS4. */ -# define MIN_NEEDED_INPUT MIN_NEEDED_FROM -# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO -# define LOOPFCT FROM_LOOP -# define BODY_FROM_ORIG \ - { \ - uint32_t ch = to_ucs4[*inptr]; \ - \ - if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && *inptr != '\0') \ - { \ - /* This is an illegal character. */ \ - STANDARD_FROM_LOOP_ERR_HANDLER (1); \ - } \ - \ - put32 (outptr, ch); \ - outptr += 4; \ - ++inptr; \ - } - -# define BODY \ - { \ - if (__builtin_expect (inend - inptr < 16, 1) \ - || outend - outptr < 64) \ - /* Convert remaining bytes with c code. */ \ - BODY_FROM_ORIG \ - else \ - { \ - /* Convert 16 ... 256 bytes at once with tr-instruction. */ \ - size_t index; \ - char buf[256]; \ - size_t loop_count = (inend - inptr) / 16; \ - if (loop_count > (outend - outptr) / 64) \ - loop_count = (outend - outptr) / 64; \ - if (loop_count > 16) \ - loop_count = 16; \ - __asm__ volatile (".machine push\n\t" \ - ".machine \"z13\"\n\t" \ - ".machinemode \"zarch_nohighgprs\"\n\t" \ - " sllk %[R_I],%[R_LI],4\n\t" \ - " ahi %[R_I],-1\n\t" \ - /* Execute mvc and tr with correct len. */ \ - " exrl %[R_I],21f\n\t" \ - " exrl %[R_I],22f\n\t" \ - /* Post-processing. */ \ - " lghi %[R_I],0\n\t" \ - " vzero %%v0\n\t" \ - "0: \n\t" \ - /* Find invalid character - value is zero. */ \ - " vl %%v16,0(%[R_I],%[R_BUF])\n\t" \ - " vceqbs %%v23,%%v0,%%v16\n\t" \ - " jle 10f\n\t" \ - "1: \n\t" \ - /* Enlarge to UCS4. */ \ - " vuplhb %%v17,%%v16\n\t" \ - " vupllb %%v18,%%v16\n\t" \ - " vuplhh %%v19,%%v17\n\t" \ - " vupllh %%v20,%%v17\n\t" \ - " vuplhh %%v21,%%v18\n\t" \ - " vupllh %%v22,%%v18\n\t" \ - /* Store 64bytes to buf_out. */ \ - " vstm %%v19,%%v22,0(%[R_OUT])\n\t" \ - " aghi %[R_I],16\n\t" \ - " la %[R_OUT],64(%[R_OUT])\n\t" \ - " brct %[R_LI],0b\n\t" \ - " la %[R_IN],0(%[R_I],%[R_IN])\n\t" \ - " j 20f\n\t" \ - "21: mvc 0(1,%[R_BUF]),0(%[R_IN])\n\t" \ - "22: tr 0(1,%[R_BUF]),0(%[R_TBL])\n\t" \ - /* Possibly invalid character found. */ \ - "10: \n\t" \ - /* Test if input was zero, too. */ \ - " vl %%v24,0(%[R_I],%[R_IN])\n\t" \ - " vceqb %%v24,%%v0,%%v24\n\t" \ - /* Zeros in buf (v23) and inptr (v24) are marked \ - with one bits. After xor, invalid characters \ - are marked as one bits. Proceed, if no \ - invalid characters are found. */ \ - " vx %%v24,%%v23,%%v24\n\t" \ - " vfenebs %%v24,%%v24,%%v0\n\t" \ - " jo 1b\n\t" \ - /* Found an invalid translation. \ - Store the preceding chars. */ \ - " la %[R_IN],0(%[R_I],%[R_IN])\n\t" \ - " vlgvb %[R_I],%%v24,7\n\t" \ - " la %[R_IN],0(%[R_I],%[R_IN])\n\t" \ - " sll %[R_I],2\n\t" \ - " ahi %[R_I],-1\n\t" \ - " jl 20f\n\t" \ - " lgr %[R_LI],%[R_I]\n\t" \ - " vuplhb %%v17,%%v16\n\t" \ - " vuplhh %%v19,%%v17\n\t" \ - " vstl %%v19,%[R_I],0(%[R_OUT])\n\t" \ - " ahi %[R_I],-16\n\t" \ - " jl 11f\n\t" \ - " vupllh %%v20,%%v17\n\t" \ - " vstl %%v20,%[R_I],16(%[R_OUT])\n\t" \ - " ahi %[R_I],-16\n\t" \ - " jl 11f\n\t" \ - " vupllb %%v18,%%v16\n\t" \ - " vuplhh %%v21,%%v18\n\t" \ - " vstl %%v21,%[R_I],32(%[R_OUT])\n\t" \ - " ahi %[R_I],-16\n\t" \ - " jl 11f\n\t" \ - " vupllh %%v22,%%v18\n\t" \ - " vstl %%v22,%[R_I],48(%[R_OUT])\n\t" \ - "11: \n\t" \ - " la %[R_OUT],1(%[R_LI],%[R_OUT])\n\t" \ - "20: \n\t" \ - ".machine pop" \ - : /* outputs */ [R_IN] "+a" (inptr) \ - , [R_OUT] "+a" (outptr), [R_I] "=&a" (index) \ - , [R_LI] "+a" (loop_count) \ - : /* inputs */ [R_BUF] "a" (buf) \ - , [R_TBL] "a" (to_ucs1) \ - : /* clobber list*/ "memory", "cc" \ - ASM_CLOBBER_VR ("v0") ASM_CLOBBER_VR ("v16") \ - ASM_CLOBBER_VR ("v17") ASM_CLOBBER_VR ("v18") \ - ASM_CLOBBER_VR ("v19") ASM_CLOBBER_VR ("v20") \ - ASM_CLOBBER_VR ("v21") ASM_CLOBBER_VR ("v22") \ - ASM_CLOBBER_VR ("v23") ASM_CLOBBER_VR ("v24") \ - ); \ - /* Error occured? */ \ - if (loop_count != 0) \ - { \ - /* Found an invalid character! */ \ - STANDARD_FROM_LOOP_ERR_HANDLER (1); \ - } \ - } \ - } - -# define LOOP_NEED_FLAGS -# include <iconv/loop.c> - -/* Next, define the other direction - from UCS4 to 8bit charset. */ -# define MIN_NEEDED_INPUT MIN_NEEDED_TO -# define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM -# define LOOPFCT TO_LOOP -# define BODY_TO_ORIG \ - { \ - uint32_t ch = get32 (inptr); \ - \ - if (__builtin_expect (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0]), 0)\ - || (__builtin_expect (from_ucs4[ch], '\1') == '\0' && ch != 0)) \ - { \ - UNICODE_TAG_HANDLER (ch, 4); \ - \ - /* This is an illegal character. */ \ - STANDARD_TO_LOOP_ERR_HANDLER (4); \ - } \ - \ - *outptr++ = from_ucs4[ch]; \ - inptr += 4; \ - } -# define BODY \ - { \ - if (__builtin_expect (inend - inptr < 64, 1) \ - || outend - outptr < 16) \ - /* Convert remaining bytes with c code. */ \ - BODY_TO_ORIG \ - else \ - { \ - /* Convert 64 ... 1024 bytes at once with tr-instruction. */ \ - size_t index, tmp; \ - char buf[256]; \ - size_t loop_count = (inend - inptr) / 64; \ - uint32_t max = sizeof (from_ucs4) / sizeof (from_ucs4[0]); \ - if (loop_count > (outend - outptr) / 16) \ - loop_count = (outend - outptr) / 16; \ - if (loop_count > 16) \ - loop_count = 16; \ - size_t remaining_loop_count = loop_count; \ - /* Step 1: Check for ch>=max, ch == 0 and shorten to bytes. \ - (ch == 0 is no error, but is handled differently) */ \ - __asm__ volatile (".machine push\n\t" \ - ".machine \"z13\"\n\t" \ - ".machinemode \"zarch_nohighgprs\"\n\t" \ - /* Setup to check for ch >= max. */ \ - " vzero %%v21\n\t" \ - " vleih %%v21,-24576,0\n\t" /* element 0: > */ \ - " vleih %%v21,-8192,2\n\t" /* element 1: =<> */ \ - " vlvgf %%v20,%[R_MAX],0\n\t" /* element 0: val */ \ - /* Process in 64byte - 16 characters blocks. */ \ - " lghi %[R_I],0\n\t" \ - " lghi %[R_TMP],0\n\t" \ - "0: \n\t" \ - " vlm %%v16,%%v19,0(%[R_IN])\n\t" \ - /* Test for ch >= max and ch == 0. */ \ - " vstrczfs %%v22,%%v16,%%v20,%%v21\n\t" \ - " jno 10f\n\t" \ - " vstrczfs %%v22,%%v17,%%v20,%%v21\n\t" \ - " jno 11f\n\t" \ - " vstrczfs %%v22,%%v18,%%v20,%%v21\n\t" \ - " jno 12f\n\t" \ - " vstrczfs %%v22,%%v19,%%v20,%%v21\n\t" \ - " jno 13f\n\t" \ - /* Shorten to byte values. */ \ - " vpkf %%v16,%%v16,%%v17\n\t" \ - " vpkf %%v18,%%v18,%%v19\n\t" \ - " vpkh %%v16,%%v16,%%v18\n\t" \ - /* Store 16bytes to buf. */ \ - " vst %%v16,0(%[R_I],%[R_BUF])\n\t" \ - /* Loop until all blocks are processed. */ \ - " la %[R_IN],64(%[R_IN])\n\t" \ - " aghi %[R_I],16\n\t" \ - " brct %[R_LI],0b\n\t" \ - " j 20f\n\t" \ - /* Found error ch >= max or ch == 0. */ \ - "13: aghi %[R_TMP],4\n\t" \ - "12: aghi %[R_TMP],4\n\t" \ - "11: aghi %[R_TMP],4\n\t" \ - "10: vlgvb %[R_I],%%v22,7\n\t" \ - " srlg %[R_I],%[R_I],2\n\t" \ - " agr %[R_I],%[R_TMP]\n\t" \ - "20: \n\t" \ - ".machine pop" \ - : /* outputs */ [R_IN] "+a" (inptr) \ - , [R_I] "=&a" (index) \ - , [R_TMP] "=d" (tmp) \ - , [R_LI] "+d" (remaining_loop_count) \ - : /* inputs */ [R_BUF] "a" (buf) \ - , [R_MAX] "d" (max) \ - : /* clobber list*/ "memory", "cc" \ - ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v17") \ - ASM_CLOBBER_VR ("v18") ASM_CLOBBER_VR ("v19") \ - ASM_CLOBBER_VR ("v20") ASM_CLOBBER_VR ("v21") \ - ASM_CLOBBER_VR ("v22") \ - ); \ - /* Error occured in step 1? An error (ch >= max || ch == 0) \ - occured, if remaining_loop_count > 0. The error occured \ - at character-index (index) after already processed blocks. */ \ - loop_count -= remaining_loop_count; \ - if (loop_count > 0) \ - { \ - /* Step 2: Translate already processed blocks in buf and \ - check for errors (from_ucs4[ch] == 0). */ \ - __asm__ volatile (".machine push\n\t" \ - ".machine \"z13\"\n\t" \ - ".machinemode \"zarch_nohighgprs\"\n\t" \ - " sllk %[R_I],%[R_LI],4\n\t" \ - " ahi %[R_I],-1\n\t" \ - /* Execute tr with correct len. */ \ - " exrl %[R_I],21f\n\t" \ - /* Post-processing. */ \ - " lghi %[R_I],0\n\t" \ - "0: \n\t" \ - /* Find invalid character - value == 0. */ \ - " vl %%v16,0(%[R_I],%[R_BUF])\n\t" \ - " vfenezbs %%v17,%%v16,%%v16\n\t" \ - " je 10f\n\t" \ - /* Store 16bytes to buf_out. */ \ - " vst %%v16,0(%[R_I],%[R_OUT])\n\t" \ - " aghi %[R_I],16\n\t" \ - " brct %[R_LI],0b\n\t" \ - " la %[R_OUT],0(%[R_I],%[R_OUT])\n\t" \ - " j 20f\n\t" \ - "21: tr 0(1,%[R_BUF]),0(%[R_TBL])\n\t" \ - /* Found an error: from_ucs4[ch] == 0. */ \ - "10: la %[R_OUT],0(%[R_I],%[R_OUT])\n\t" \ - " vlgvb %[R_I],%%v17,7\n\t" \ - "20: \n\t" \ - ".machine pop" \ - : /* outputs */ [R_OUT] "+a" (outptr) \ - , [R_I] "=&a" (tmp) \ - , [R_LI] "+d" (loop_count) \ - : /* inputs */ [R_BUF] "a" (buf) \ - , [R_TBL] "a" (from_ucs4) \ - : /* clobber list*/ "memory", "cc" \ - ASM_CLOBBER_VR ("v16") \ - ASM_CLOBBER_VR ("v17") \ - ); \ - /* Error occured in processed bytes of step 2? \ - Thus possible error in step 1 is obselete.*/ \ - if (tmp < 16) \ - { \ - index = tmp; \ - inptr -= loop_count * 64; \ - } \ - } \ - /* Error occured in step 1/2? */ \ - if (index < 16) \ - { \ - /* Found an invalid character (see step 2) or zero \ - (see step 1) at index! Convert the chars before index \ - manually. If there is a zero at index detected by step 1, \ - there could be invalid characters before this zero. */ \ - int i; \ - uint32_t ch; \ - for (i = 0; i < index; i++) \ - { \ - ch = get32 (inptr); \ - if (__builtin_expect (from_ucs4[ch], '\1') == '\0') \ - break; \ - *outptr++ = from_ucs4[ch]; \ - inptr += 4; \ - } \ - if (i == index) \ - { \ - ch = get32 (inptr); \ - if (ch == 0) \ - { \ - /* This is no error, but handled differently. */ \ - *outptr++ = from_ucs4[ch]; \ - inptr += 4; \ - continue; \ - } \ - } \ - \ - UNICODE_TAG_HANDLER (ch, 4); \ - \ - /* This is an illegal character. */ \ - STANDARD_TO_LOOP_ERR_HANDLER (4); \ - } \ - } \ - } - -# define LOOP_NEED_FLAGS -# include <iconv/loop.c> - - -/* Generate ifunc'ed loop function. */ -s390_libc_ifunc_expr (__from_generic_c, __from_generic, - (sizeof (from_ucs4) / sizeof (from_ucs4[0]) <= 256 - && hwcap & HWCAP_S390_VX) - ? __from_generic_vx - : __from_generic_c); - -s390_libc_ifunc_expr (__to_generic_c, __to_generic, - (sizeof (from_ucs4) / sizeof (from_ucs4[0]) <= 256 - && hwcap & HWCAP_S390_VX) - ? __to_generic_vx - : __to_generic_c); - -strong_alias (__to_generic_c_single, __to_generic_single) - -# undef FROM_LOOP -# undef TO_LOOP -# define FROM_LOOP __from_generic -# define TO_LOOP __to_generic -# include <iconv/skeleton.c> - -#else -/* Generate this module without ifunc if build environment lacks vector - support. Instead the common 8bit-generic.c is used. */ -# include "iconvdata/8bit-generic.c" -#endif /* !defined HAVE_S390_VX_ASM_SUPPORT */ |