Hi,
I've updated the vector loop functions
internal_ucs2_loop and internal_ucs2reverse_loop.
The old patch contained lhi statements to initialize %[R_TMP],
which is later used to calculate an address.
This patch uses lghi statements to initialize %[R_TMP].
the ChangeLog remains the same.
Bye Stefan
On 02/23/2016 10:21 AM, Stefan Liebler wrote:
> This patch introduces a s390 specific gconv_simple.c file which provides
> optimized versions for z13 with vector instructions, which will be chosen at
> runtime via ifunc.
> The optimized conversions can convert between internal and ascii, ucs4, ucs4le,
> ucs2, ucs2le.
> If the build-environment lacks vector support, then iconv/gconv_simple.c
> is used wihtout any change. Otherwise iconvdata/gconv_simple.c is used to create
> conversion loop routines without vector instructions as fallback, if vector
> instructions aren't available at runtime.
>
> ChangeLog:
>
> * sysdeps/s390/multiarch/gconv_simple.c: New File.
> * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add gconv_simple.
> ---
> sysdeps/s390/multiarch/Makefile | 4 +
> sysdeps/s390/multiarch/gconv_simple.c | 1266 +++++++++++++++++++++++++++++++++
> 2 files changed, 1270 insertions(+)
> create mode 100644 sysdeps/s390/multiarch/gconv_simple.c
>
> diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
> index 0805b07..5067b6f 100644
> --- a/sysdeps/s390/multiarch/Makefile
> +++ b/sysdeps/s390/multiarch/Makefile
> @@ -42,3 +42,7 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
> wmemset wmemset-vx wmemset-c \
> wmemcmp wmemcmp-vx wmemcmp-c
> endif
> +
> +ifeq ($(subdir),iconv)
> +sysdep_routines += gconv_simple
> +endif
> diff --git a/sysdeps/s390/multiarch/gconv_simple.c b/sysdeps/s390/multiarch/gconv_simple.c
> new file mode 100644
> index 0000000..0e59422
> --- /dev/null
> +++ b/sysdeps/s390/multiarch/gconv_simple.c
> @@ -0,0 +1,1266 @@
> +/* Simple transformations functions - s390 version.
> + Copyright (C) 2016 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
> + . */
> +
> +#if defined HAVE_S390_VX_ASM_SUPPORT
> +# include
> +
> +# if defined HAVE_S390_VX_GCC_SUPPORT
> +# define ASM_CLOBBER_VR(NR) , NR
> +# else
> +# define ASM_CLOBBER_VR(NR)
> +# endif
> +
> +# define ICONV_C_NAME(NAME) __##NAME##_c
> +# define ICONV_VX_NAME(NAME) __##NAME##_vx
> +# define ICONV_VX_IFUNC(FUNC) \
> + extern __typeof (ICONV_C_NAME (FUNC)) __##FUNC; \
> + s390_vx_libc_ifunc (__##FUNC) \
> + int FUNC (struct __gconv_step *step, struct __gconv_step_data *data, \
> + const unsigned char **inptrp, const unsigned char *inend, \
> + unsigned char **outbufstart, size_t *irreversible, \
> + int do_flush, int consume_incomplete) \
> + { \
> + return __##FUNC (step, data, inptrp, inend,outbufstart, \
> + irreversible, do_flush, consume_incomplete); \
> + }
> +# define ICONV_VX_SINGLE(NAME) \
> + static __typeof (NAME##_single) __##NAME##_vx_single __attribute__((alias(#NAME "_single")));
> +
> +/* Generate the transformations which are used, if the target machine does not
> + support vector instructions. */
> +# define __gconv_transform_ascii_internal \
> + ICONV_C_NAME (__gconv_transform_ascii_internal)
> +# define __gconv_transform_internal_ascii \
> + ICONV_C_NAME (__gconv_transform_internal_ascii)
> +# define __gconv_transform_internal_ucs4le \
> + ICONV_C_NAME (__gconv_transform_internal_ucs4le)
> +# define __gconv_transform_ucs4_internal \
> + ICONV_C_NAME (__gconv_transform_ucs4_internal)
> +# define __gconv_transform_ucs4le_internal \
> + ICONV_C_NAME (__gconv_transform_ucs4le_internal)
> +# define __gconv_transform_ucs2_internal \
> + ICONV_C_NAME (__gconv_transform_ucs2_internal)
> +# define __gconv_transform_ucs2reverse_internal \
> + ICONV_C_NAME (__gconv_transform_ucs2reverse_internal)
> +# define __gconv_transform_internal_ucs2 \
> + ICONV_C_NAME (__gconv_transform_internal_ucs2)
> +# define __gconv_transform_internal_ucs2reverse \
> + ICONV_C_NAME (__gconv_transform_internal_ucs2reverse)
> +
> +
> +# include
> +
> +# undef __gconv_transform_ascii_internal
> +# undef __gconv_transform_internal_ascii
> +# undef __gconv_transform_internal_ucs4le
> +# undef __gconv_transform_ucs4_internal
> +# undef __gconv_transform_ucs4le_internal
> +# undef __gconv_transform_ucs2_internal
> +# undef __gconv_transform_ucs2reverse_internal
> +# undef __gconv_transform_internal_ucs2
> +# undef __gconv_transform_internal_ucs2reverse
> +
> +/* Now define the functions with vector support. */
> +# if defined __s390x__
> +# define CONVERT_32BIT_SIZE_T(REG)
> +# else
> +# define CONVERT_32BIT_SIZE_T(REG) "llgfr %" #REG ",%" #REG "\n\t"
> +# endif
> +
> +/* Convert from ISO 646-IRV to the internal (UCS4-like) format. */
> +# define DEFINE_INIT 0
> +# define DEFINE_FINI 0
> +# define MIN_NEEDED_FROM 1
> +# define MIN_NEEDED_TO 4
> +# define FROM_DIRECTION 1
> +# define FROM_LOOP ICONV_VX_NAME (ascii_internal_loop)
> +# define TO_LOOP ICONV_VX_NAME (ascii_internal_loop) /* This is not used. */
> +# define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_ascii_internal)
> +# define ONE_DIRECTION 1
> +
> +# define MIN_NEEDED_INPUT MIN_NEEDED_FROM
> +# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
> +# define LOOPFCT FROM_LOOP
> +# define BODY_ORIG_ERROR \
> + /* The value is too large. We don't try transliteration here since \
> + this is not an error because of the lack of possibilities to \
> + represent the result. This is a genuine bug in the input since \
> + ASCII does not allow such values. */ \
> + STANDARD_FROM_LOOP_ERR_HANDLER (1);
> +
> +# define BODY_ORIG \
> + { \
> + if (__glibc_unlikely (*inptr > '\x7f')) \
> + { \
> + BODY_ORIG_ERROR \
> + } \
> + else \
> + { \
> + /* It's an one byte sequence. */ \
> + *((uint32_t *) outptr) = *inptr++; \
> + outptr += sizeof (uint32_t); \
> + } \
> + }
> +# define BODY \
> + { \
> + size_t len = inend - inptr; \
> + if (len > (outend - outptr) / 4) \
> + len = (outend - outptr) / 4; \
> + size_t loop_count, tmp; \
> + __asm__ volatile (".machine push\n\t" \
> + ".machine \"z13\"\n\t" \
> + ".machinemode \"zarch_nohighgprs\"\n\t" \
> + CONVERT_32BIT_SIZE_T ([R_LEN]) \
> + "vrepib %%v30,0x7f\n\t" /* For compare > 0x7f. */ \
> + "srlg %[R_LI],%[R_LEN],4\n\t" \
> + "vrepib %%v31,0x20\n\t" \
> + "clgije %[R_LI],0,1f\n\t" \
> + "0:\n\t" /* Handle 16-byte blocks. */ \
> + "vl %%v16,0(%[R_IN])\n\t" \
> + /* Checking for values > 0x7f. */ \
> + "vstrcbs %%v17,%%v16,%%v30,%%v31\n\t" \
> + "jno 10f\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" \
> + "la %[R_IN],16(%[R_IN])\n\t" \
> + "la %[R_OUT],64(%[R_OUT])\n\t" \
> + "brctg %[R_LI],0b\n\t" \
> + "lghi %[R_LI],15\n\t" \
> + "ngr %[R_LEN],%[R_LI]\n\t" \
> + "je 20f\n\t" /* Jump away if no remaining bytes. */ \
> + /* Handle remaining bytes. */ \
> + "1: aghik %[R_LI],%[R_LEN],-1\n\t" \
> + "jl 20f\n\t" /* Jump away if no remaining bytes. */ \
> + "vll %%v16,%[R_LI],0(%[R_IN])\n\t" \
> + /* Checking for values > 0x7f. */ \
> + "vstrcbs %%v17,%%v16,%%v30,%%v31\n\t" \
> + "vlgvb %[R_TMP],%%v17,7\n\t" \
> + "clr %[R_TMP],%[R_LI]\n\t" \
> + "locrh %[R_TMP],%[R_LEN]\n\t" \
> + "locghih %[R_LEN],0\n\t" \
> + "j 12f\n\t" \
> + "10:\n\t" \
> + /* Found a value > 0x7f. \
> + Store the preceding chars. */ \
> + "vlgvb %[R_TMP],%%v17,7\n\t" \
> + "12: la %[R_IN],0(%[R_TMP],%[R_IN])\n\t" \
> + "sllk %[R_TMP],%[R_TMP],2\n\t" \
> + "ahi %[R_TMP],-1\n\t" \
> + "jl 20f\n\t" \
> + "lgr %[R_LI],%[R_TMP]\n\t" \
> + "vuplhb %%v17,%%v16\n\t" \
> + "vuplhh %%v19,%%v17\n\t" \
> + "vstl %%v19,%[R_LI],0(%[R_OUT])\n\t" \
> + "ahi %[R_LI],-16\n\t" \
> + "jl 11f\n\t" \
> + "vupllh %%v20,%%v17\n\t" \
> + "vstl %%v20,%[R_LI],16(%[R_OUT])\n\t" \
> + "ahi %[R_LI],-16\n\t" \
> + "jl 11f\n\t" \
> + "vupllb %%v18,%%v16\n\t" \
> + "vuplhh %%v21,%%v18\n\t" \
> + "vstl %%v21,%[R_LI],32(%[R_OUT])\n\t" \
> + "ahi %[R_LI],-16\n\t" \
> + "jl 11f\n\t" \
> + "vupllh %%v22,%%v18\n\t" \
> + "vstl %%v22,%[R_LI],48(%[R_OUT])\n\t" \
> + "11:\n\t" \
> + "la %[R_OUT],1(%[R_TMP],%[R_OUT])\n\t" \
> + "20:\n\t" \
> + ".machine pop" \
> + : /* outputs */ [R_OUT] "+a" (outptr) \
> + , [R_IN] "+a" (inptr) \
> + , [R_LEN] "+d" (len) \
> + , [R_LI] "=d" (loop_count) \
> + , [R_TMP] "=a" (tmp) \
> + : /* inputs */ \
> + : /* 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") ASM_CLOBBER_VR ("v30") \
> + ASM_CLOBBER_VR ("v31") \
> + ); \
> + if (len > 0) \
> + { \
> + /* Found an invalid character at the next input byte. */ \
> + BODY_ORIG_ERROR \
> + } \
> + }
> +
> +# define LOOP_NEED_FLAGS
> +# include
> +# include
> +# undef BODY_ORIG
> +# undef BODY_ORIG_ERROR
> +ICONV_VX_IFUNC (__gconv_transform_ascii_internal)
> +
> +/* Convert from the internal (UCS4-like) format to ISO 646-IRV. */
> +# define DEFINE_INIT 0
> +# define DEFINE_FINI 0
> +# define MIN_NEEDED_FROM 4
> +# define MIN_NEEDED_TO 1
> +# define FROM_DIRECTION 1
> +# define FROM_LOOP ICONV_VX_NAME (internal_ascii_loop)
> +# define TO_LOOP ICONV_VX_NAME (internal_ascii_loop) /* This is not used. */
> +# define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_internal_ascii)
> +# define ONE_DIRECTION 1
> +
> +# define MIN_NEEDED_INPUT MIN_NEEDED_FROM
> +# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
> +# define LOOPFCT FROM_LOOP
> +# define BODY_ORIG_ERROR \
> + UNICODE_TAG_HANDLER (*((const uint32_t *) inptr), 4); \
> + STANDARD_TO_LOOP_ERR_HANDLER (4);
> +
> +# define BODY_ORIG \
> + { \
> + if (__glibc_unlikely (*((const uint32_t *) inptr) > 0x7f)) \
> + { \
> + BODY_ORIG_ERROR \
> + } \
> + else \
> + { \
> + /* It's an one byte sequence. */ \
> + *outptr++ = *((const uint32_t *) inptr); \
> + inptr += sizeof (uint32_t); \
> + } \
> + }
> +# define BODY \
> + { \
> + size_t len = (inend - inptr) / 4; \
> + if (len > outend - outptr) \
> + len = outend - outptr; \
> + size_t loop_count, tmp, tmp2; \
> + __asm__ volatile (".machine push\n\t" \
> + ".machine \"z13\"\n\t" \
> + ".machinemode \"zarch_nohighgprs\"\n\t" \
> + CONVERT_32BIT_SIZE_T ([R_LEN]) \
> + /* Setup to check for ch > 0x7f. */ \
> + "vzero %%v21\n\t" \
> + "srlg %[R_LI],%[R_LEN],4\n\t" \
> + "vleih %%v21,8192,0\n\t" /* element 0: > */ \
> + "vleih %%v21,-8192,2\n\t" /* element 1: =<> */ \
> + "vleif %%v20,127,0\n\t" /* element 0: 127 */ \
> + "lghi %[R_TMP],0\n\t" \
> + "clgije %[R_LI],0,1f\n\t" \
> + "0:\n\t" \
> + "vlm %%v16,%%v19,0(%[R_IN])\n\t" \
> + /* Shorten to byte values. */ \
> + "vpkf %%v23,%%v16,%%v17\n\t" \
> + "vpkf %%v24,%%v18,%%v19\n\t" \
> + "vpkh %%v23,%%v23,%%v24\n\t" \
> + /* Checking for values > 0x7f. */ \
> + "vstrcfs %%v22,%%v16,%%v20,%%v21\n\t" \
> + "jno 10f\n\t" \
> + "vstrcfs %%v22,%%v17,%%v20,%%v21\n\t" \
> + "jno 11f\n\t" \
> + "vstrcfs %%v22,%%v18,%%v20,%%v21\n\t" \
> + "jno 12f\n\t" \
> + "vstrcfs %%v22,%%v19,%%v20,%%v21\n\t" \
> + "jno 13f\n\t" \
> + /* Store 16bytes to outptr. */ \
> + "vst %%v23,0(%[R_OUT])\n\t" \
> + "la %[R_IN],64(%[R_IN])\n\t" \
> + "la %[R_OUT],16(%[R_OUT])\n\t" \
> + "brctg %[R_LI],0b\n\t" \
> + "lghi %[R_LI],15\n\t" \
> + "ngr %[R_LEN],%[R_LI]\n\t" \
> + "je 20f\n\t" /* Jump away if no remaining bytes. */ \
> + /* Handle remaining bytes. */ \
> + "1: sllg %[R_LI],%[R_LEN],2\n\t" \
> + "aghi %[R_LI],-1\n\t" \
> + "jl 20f\n\t" /* Jump away if no remaining bytes. */ \
> + /* Load remaining 1...63 bytes. */ \
> + "vll %%v16,%[R_LI],0(%[R_IN])\n\t" \
> + "ahi %[R_LI],-16\n\t" \
> + "jl 2f\n\t" \
> + "vll %%v17,%[R_LI],16(%[R_IN])\n\t" \
> + "ahi %[R_LI],-16\n\t" \
> + "jl 2f\n\t" \
> + "vll %%v18,%[R_LI],32(%[R_IN])\n\t" \
> + "ahi %[R_LI],-16\n\t" \
> + "jl 2f\n\t" \
> + "vll %%v19,%[R_LI],48(%[R_IN])\n\t" \
> + "2:\n\t" \
> + /* Shorten to byte values. */ \
> + "vpkf %%v23,%%v16,%%v17\n\t" \
> + "vpkf %%v24,%%v18,%%v19\n\t" \
> + "vpkh %%v23,%%v23,%%v24\n\t" \
> + "sllg %[R_LI],%[R_LEN],2\n\t" \
> + "aghi %[R_LI],-16\n\t" \
> + "jl 3f\n\t" /* v16 is not fully loaded. */ \
> + "vstrcfs %%v22,%%v16,%%v20,%%v21\n\t" \
> + "jno 10f\n\t" \
> + "aghi %[R_LI],-16\n\t" \
> + "jl 4f\n\t" /* v17 is not fully loaded. */ \
> + "vstrcfs %%v22,%%v17,%%v20,%%v21\n\t" \
> + "jno 11f\n\t" \
> + "aghi %[R_LI],-16\n\t" \
> + "jl 5f\n\t" /* v18 is not fully loaded. */ \
> + "vstrcfs %%v22,%%v18,%%v20,%%v21\n\t" \
> + "jno 12f\n\t" \
> + "aghi %[R_LI],-16\n\t" \
> + /* v19 is not fully loaded. */ \
> + "lghi %[R_TMP],12\n\t" \
> + "vstrcfs %%v22,%%v19,%%v20,%%v21\n\t" \
> + "6: vlgvb %[R_I],%%v22,7\n\t" \
> + "aghi %[R_LI],16\n\t" \
> + "clrjl %[R_I],%[R_LI],14f\n\t" \
> + "lgr %[R_I],%[R_LEN]\n\t" \
> + "lghi %[R_LEN],0\n\t" \
> + "j 15f\n\t" \
> + "3: vstrcfs %%v22,%%v16,%%v20,%%v21\n\t" \
> + "j 6b\n\t" \
> + "4: vstrcfs %%v22,%%v17,%%v20,%%v21\n\t" \
> + "lghi %[R_TMP],4\n\t" \
> + "j 6b\n\t" \
> + "5: vstrcfs %%v22,%%v17,%%v20,%%v21\n\t" \
> + "lghi %[R_TMP],8\n\t" \
> + "j 6b\n\t" \
> + /* Found a value > 0x7f. */ \
> + "13: ahi %[R_TMP],4\n\t" \
> + "12: ahi %[R_TMP],4\n\t" \
> + "11: ahi %[R_TMP],4\n\t" \
> + "10: vlgvb %[R_I],%%v22,7\n\t" \
> + "14: srlg %[R_I],%[R_I],2\n\t" \
> + "agr %[R_I],%[R_TMP]\n\t" \
> + "je 20f\n\t" \
> + /* Store characters before invalid one... */ \
> + "15: aghi %[R_I],-1\n\t" \
> + "vstl %%v23,%[R_I],0(%[R_OUT])\n\t" \
> + /* ... and update pointers. */ \
> + "la %[R_OUT],1(%[R_I],%[R_OUT])\n\t" \
> + "sllg %[R_I],%[R_I],2\n\t" \
> + "la %[R_IN],4(%[R_I],%[R_IN])\n\t" \
> + "20:\n\t" \
> + ".machine pop" \
> + : /* outputs */ [R_OUT] "+a" (outptr) \
> + , [R_IN] "+a" (inptr) \
> + , [R_LEN] "+d" (len) \
> + , [R_LI] "=d" (loop_count) \
> + , [R_I] "=a" (tmp2) \
> + , [R_TMP] "=d" (tmp) \
> + : /* inputs */ \
> + : /* 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") ASM_CLOBBER_VR ("v23") \
> + ASM_CLOBBER_VR ("v24") \
> + ); \
> + if (len > 0) \
> + { \
> + /* Found an invalid character > 0x7f at next character. */ \
> + BODY_ORIG_ERROR \
> + } \
> + }
> +# define LOOP_NEED_FLAGS
> +# include
> +# include
> +# undef BODY_ORIG
> +# undef BODY_ORIG_ERROR
> +ICONV_VX_IFUNC (__gconv_transform_internal_ascii)
> +
> +
> +/* Convert from internal UCS4 to UCS4 little endian form. */
> +# define DEFINE_INIT 0
> +# define DEFINE_FINI 0
> +# define MIN_NEEDED_FROM 4
> +# define MIN_NEEDED_TO 4
> +# define FROM_DIRECTION 1
> +# define FROM_LOOP ICONV_VX_NAME (internal_ucs4le_loop)
> +# define TO_LOOP ICONV_VX_NAME (internal_ucs4le_loop) /* This is not used. */
> +# define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_internal_ucs4le)
> +# define ONE_DIRECTION 0
> +
> +static inline int
> +__attribute ((always_inline))
> +ICONV_VX_NAME (internal_ucs4le_loop) (struct __gconv_step *step,
> + struct __gconv_step_data *step_data,
> + const unsigned char **inptrp,
> + const unsigned char *inend,
> + unsigned char **outptrp,
> + unsigned char *outend,
> + size_t *irreversible)
> +{
> + const unsigned char *inptr = *inptrp;
> + unsigned char *outptr = *outptrp;
> + int result;
> + size_t len = MIN (inend - inptr, outend - outptr) / 4;
> + size_t loop_count;
> + __asm__ volatile (".machine push\n\t"
> + ".machine \"z13\"\n\t"
> + ".machinemode \"zarch_nohighgprs\"\n\t"
> + CONVERT_32BIT_SIZE_T ([R_LEN])
> + "bras %[R_LI],1f\n\t"
> + /* Vector permute mask: */
> + ".long 0x03020100,0x7060504,0x0B0A0908,0x0F0E0D0C\n\t"
> + "1: vl %%v20,0(%[R_LI])\n\t"
> + /* Process 64byte (16char) blocks. */
> + "srlg %[R_LI],%[R_LEN],4\n\t"
> + "clgije %[R_LI],0,10f\n\t"
> + "0: vlm %%v16,%%v19,0(%[R_IN])\n\t"
> + "vperm %%v16,%%v16,%%v16,%%v20\n\t"
> + "vperm %%v17,%%v17,%%v17,%%v20\n\t"
> + "vperm %%v18,%%v18,%%v18,%%v20\n\t"
> + "vperm %%v19,%%v19,%%v19,%%v20\n\t"
> + "vstm %%v16,%%v19,0(%[R_OUT])\n\t"
> + "la %[R_IN],64(%[R_IN])\n\t"
> + "la %[R_OUT],64(%[R_OUT])\n\t"
> + "brctg %[R_LI],0b\n\t"
> + "llgfr %[R_LEN],%[R_LEN]\n\t"
> + "nilf %[R_LEN],15\n\t"
> + /* Process 16byte (4char) blocks. */
> + "10: srlg %[R_LI],%[R_LEN],2\n\t"
> + "clgije %[R_LI],0,20f\n\t"
> + "11: vl %%v16,0(%[R_IN])\n\t"
> + "vperm %%v16,%%v16,%%v16,%%v20\n\t"
> + "vst %%v16,0(%[R_OUT])\n\t"
> + "la %[R_IN],16(%[R_IN])\n\t"
> + "la %[R_OUT],16(%[R_OUT])\n\t"
> + "brctg %[R_LI],11b\n\t"
> + "nill %[R_LEN],3\n\t"
> + /* Process <16bytes. */
> + "20: sll %[R_LEN],2\n\t"
> + "ahi %[R_LEN],-1\n\t"
> + "jl 30f\n\t"
> + "vll %%v16,%[R_LEN],0(%[R_IN])\n\t"
> + "vperm %%v16,%%v16,%%v16,%%v20\n\t"
> + "vstl %%v16,%[R_LEN],0(%[R_OUT])\n\t"
> + "la %[R_IN],1(%[R_LEN],%[R_IN])\n\t"
> + "la %[R_OUT],1(%[R_LEN],%[R_OUT])\n\t"
> + "30: \n\t"
> + ".machine pop"
> + : /* outputs */ [R_OUT] "+a" (outptr)
> + , [R_IN] "+a" (inptr)
> + , [R_LI] "=a" (loop_count)
> + , [R_LEN] "+a" (len)
> + : /* inputs */
> + : /* clobber list*/ "memory", "cc"
> + ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v17")
> + ASM_CLOBBER_VR ("v18") ASM_CLOBBER_VR ("v19")
> + ASM_CLOBBER_VR ("v20")
> + );
> + *inptrp = inptr;
> + *outptrp = outptr;
> +
> + /* Determine the status. */
> + if (*inptrp == inend)
> + result = __GCONV_EMPTY_INPUT;
> + else if (*outptrp + 4 > outend)
> + result = __GCONV_FULL_OUTPUT;
> + else
> + result = __GCONV_INCOMPLETE_INPUT;
> +
> + return result;
> +}
> +
> +ICONV_VX_SINGLE (internal_ucs4le_loop)
> +# include
> +ICONV_VX_IFUNC (__gconv_transform_internal_ucs4le)
> +
> +
> +/* Transform from UCS4 to the internal, UCS4-like format. Unlike
> + for the other direction we have to check for correct values here. */
> +# define DEFINE_INIT 0
> +# define DEFINE_FINI 0
> +# define MIN_NEEDED_FROM 4
> +# define MIN_NEEDED_TO 4
> +# define FROM_DIRECTION 1
> +# define FROM_LOOP ICONV_VX_NAME (ucs4_internal_loop)
> +# define TO_LOOP ICONV_VX_NAME (ucs4_internal_loop) /* This is not used. */
> +# define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_ucs4_internal)
> +# define ONE_DIRECTION 0
> +
> +
> +static inline int
> +__attribute ((always_inline))
> +ICONV_VX_NAME (ucs4_internal_loop) (struct __gconv_step *step,
> + struct __gconv_step_data *step_data,
> + const unsigned char **inptrp,
> + const unsigned char *inend,
> + unsigned char **outptrp,
> + unsigned char *outend,
> + size_t *irreversible)
> +{
> + int flags = step_data->__flags;
> + const unsigned char *inptr = *inptrp;
> + unsigned char *outptr = *outptrp;
> + int result;
> + size_t len, loop_count;
> + do
> + {
> + len = MIN (inend - inptr, outend - outptr) / 4;
> + __asm__ volatile (".machine push\n\t"
> + ".machine \"z13\"\n\t"
> + ".machinemode \"zarch_nohighgprs\"\n\t"
> + CONVERT_32BIT_SIZE_T ([R_LEN])
> + /* Setup to check for ch > 0x7fffffff. */
> + "larl %[R_LI],9f\n\t"
> + "vlm %%v20,%%v21,0(%[R_LI])\n\t"
> + "srlg %[R_LI],%[R_LEN],2\n\t"
> + "clgije %[R_LI],0,1f\n\t"
> + /* Process 16byte (4char) blocks. */
> + "0: vl %%v16,0(%[R_IN])\n\t"
> + "vstrcfs %%v22,%%v16,%%v20,%%v21\n\t"
> + "jno 10f\n\t"
> + "vst %%v16,0(%[R_OUT])\n\t"
> + "la %[R_IN],16(%[R_IN])\n\t"
> + "la %[R_OUT],16(%[R_OUT])\n\t"
> + "brctg %[R_LI],0b\n\t"
> + "llgfr %[R_LEN],%[R_LEN]\n\t"
> + "nilf %[R_LEN],3\n\t"
> + /* Process <16bytes. */
> + "1: sll %[R_LEN],2\n\t"
> + "ahik %[R_LI],%[R_LEN],-1\n\t"
> + "jl 20f\n\t" /* No further bytes available. */
> + "vll %%v16,%[R_LI],0(%[R_IN])\n\t"
> + "vstrcfs %%v22,%%v16,%%v20,%%v21\n\t"
> + "vlgvb %[R_LI],%%v22,7\n\t"
> + "clr %[R_LI],%[R_LEN]\n\t"
> + "locgrhe %[R_LI],%[R_LEN]\n\t"
> + "locghihe %[R_LEN],0\n\t"
> + "j 11f\n\t"
> + /* v20: Vector string range compare values. */
> + "9: .long 0x7fffffff,0x0,0x0,0x0\n\t"
> + /* v21: Vector string range compare control-bits.
> + element 0: >; element 1: =<> (always true) */
> + ".long 0x20000000,0xE0000000,0x0,0x0\n\t"
> + /* Found a value > 0x7fffffff. */
> + "10: vlgvb %[R_LI],%%v22,7\n\t"
> + /* Store characters before invalid one. */
> + "11: aghi %[R_LI],-1\n\t"
> + "jl 20f\n\t"
> + "vstl %%v16,%[R_LI],0(%[R_OUT])\n\t"
> + "la %[R_IN],1(%[R_LI],%[R_IN])\n\t"
> + "la %[R_OUT],1(%[R_LI],%[R_OUT])\n\t"
> + "20:\n\t"
> + ".machine pop"
> + : /* outputs */ [R_OUT] "+a" (outptr)
> + , [R_IN] "+a" (inptr)
> + , [R_LI] "=a" (loop_count)
> + , [R_LEN] "+d" (len)
> + : /* inputs */
> + : /* clobber list*/ "memory", "cc"
> + ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v20")
> + ASM_CLOBBER_VR ("v21") ASM_CLOBBER_VR ("v22")
> + );
> + if (len > 0)
> + {
> + /* The value is too large. We don't try transliteration here since
> + this is not an error because of the lack of possibilities to
> + represent the result. This is a genuine bug in the input since
> + UCS4 does not allow such values. */
> + if (irreversible == NULL)
> + /* We are transliterating, don't try to correct anything. */
> + return __GCONV_ILLEGAL_INPUT;
> +
> + if (flags & __GCONV_IGNORE_ERRORS)
> + {
> + /* Just ignore this character. */
> + ++*irreversible;
> + inptr += 4;
> + continue;
> + }
> +
> + *inptrp = inptr;
> + *outptrp = outptr;
> + return __GCONV_ILLEGAL_INPUT;
> + }
> + }
> + while (len > 0);
> +
> + *inptrp = inptr;
> + *outptrp = outptr;
> +
> + /* Determine the status. */
> + if (*inptrp == inend)
> + result = __GCONV_EMPTY_INPUT;
> + else if (*outptrp + 4 > outend)
> + result = __GCONV_FULL_OUTPUT;
> + else
> + result = __GCONV_INCOMPLETE_INPUT;
> +
> + return result;
> +}
> +
> +ICONV_VX_SINGLE (ucs4_internal_loop)
> +# include
> +ICONV_VX_IFUNC (__gconv_transform_ucs4_internal)
> +
> +
> +/* Transform from UCS4-LE to the internal encoding. */
> +# define DEFINE_INIT 0
> +# define DEFINE_FINI 0
> +# define MIN_NEEDED_FROM 4
> +# define MIN_NEEDED_TO 4
> +# define FROM_DIRECTION 1
> +# define FROM_LOOP ICONV_VX_NAME (ucs4le_internal_loop)
> +# define TO_LOOP ICONV_VX_NAME (ucs4le_internal_loop) /* This is not used. */
> +# define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_ucs4le_internal)
> +# define ONE_DIRECTION 0
> +
> +static inline int
> +__attribute ((always_inline))
> +ICONV_VX_NAME (ucs4le_internal_loop) (struct __gconv_step *step,
> + struct __gconv_step_data *step_data,
> + const unsigned char **inptrp,
> + const unsigned char *inend,
> + unsigned char **outptrp,
> + unsigned char *outend,
> + size_t *irreversible)
> +{
> + int flags = step_data->__flags;
> + const unsigned char *inptr = *inptrp;
> + unsigned char *outptr = *outptrp;
> + int result;
> + size_t len, loop_count;
> + do
> + {
> + len = MIN (inend - inptr, outend - outptr) / 4;
> + __asm__ volatile (".machine push\n\t"
> + ".machine \"z13\"\n\t"
> + ".machinemode \"zarch_nohighgprs\"\n\t"
> + CONVERT_32BIT_SIZE_T ([R_LEN])
> + /* Setup to check for ch > 0x7fffffff. */
> + "larl %[R_LI],9f\n\t"
> + "vlm %%v20,%%v22,0(%[R_LI])\n\t"
> + "srlg %[R_LI],%[R_LEN],2\n\t"
> + "clgije %[R_LI],0,1f\n\t"
> + /* Process 16byte (4char) blocks. */
> + "0: vl %%v16,0(%[R_IN])\n\t"
> + "vperm %%v16,%%v16,%%v16,%%v22\n\t"
> + "vstrcfs %%v23,%%v16,%%v20,%%v21\n\t"
> + "jno 10f\n\t"
> + "vst %%v16,0(%[R_OUT])\n\t"
> + "la %[R_IN],16(%[R_IN])\n\t"
> + "la %[R_OUT],16(%[R_OUT])\n\t"
> + "brctg %[R_LI],0b\n\t"
> + "llgfr %[R_LEN],%[R_LEN]\n\t"
> + "nilf %[R_LEN],3\n\t"
> + /* Process <16bytes. */
> + "1: sll %[R_LEN],2\n\t"
> + "ahik %[R_LI],%[R_LEN],-1\n\t"
> + "jl 20f\n\t" /* No further bytes available. */
> + "vll %%v16,%[R_LI],0(%[R_IN])\n\t"
> + "vperm %%v16,%%v16,%%v16,%%v22\n\t"
> + "vstrcfs %%v23,%%v16,%%v20,%%v21\n\t"
> + "vlgvb %[R_LI],%%v23,7\n\t"
> + "clr %[R_LI],%[R_LEN]\n\t"
> + "locgrhe %[R_LI],%[R_LEN]\n\t"
> + "locghihe %[R_LEN],0\n\t"
> + "j 11f\n\t"
> + /* v20: Vector string range compare values. */
> + "9: .long 0x7fffffff,0x0,0x0,0x0\n\t"
> + /* v21: Vector string range compare control-bits.
> + element 0: >; element 1: =<> (always true) */
> + ".long 0x20000000,0xE0000000,0x0,0x0\n\t"
> + /* v22: Vector permute mask. */
> + ".long 0x03020100,0x7060504,0x0B0A0908,0x0F0E0D0C\n\t"
> + /* Found a value > 0x7fffffff. */
> + "10: vlgvb %[R_LI],%%v23,7\n\t"
> + /* Store characters before invalid one. */
> + "11: aghi %[R_LI],-1\n\t"
> + "jl 20f\n\t"
> + "vstl %%v16,%[R_LI],0(%[R_OUT])\n\t"
> + "la %[R_IN],1(%[R_LI],%[R_IN])\n\t"
> + "la %[R_OUT],1(%[R_LI],%[R_OUT])\n\t"
> + "20:\n\t"
> + ".machine pop"
> + : /* outputs */ [R_OUT] "+a" (outptr)
> + , [R_IN] "+a" (inptr)
> + , [R_LI] "=a" (loop_count)
> + , [R_LEN] "+d" (len)
> + : /* inputs */
> + : /* clobber list*/ "memory", "cc"
> + ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v20")
> + ASM_CLOBBER_VR ("v21") ASM_CLOBBER_VR ("v22")
> + ASM_CLOBBER_VR ("v23")
> + );
> + if (len > 0)
> + {
> + /* The value is too large. We don't try transliteration here since
> + this is not an error because of the lack of possibilities to
> + represent the result. This is a genuine bug in the input since
> + UCS4 does not allow such values. */
> + if (irreversible == NULL)
> + /* We are transliterating, don't try to correct anything. */
> + return __GCONV_ILLEGAL_INPUT;
> +
> + if (flags & __GCONV_IGNORE_ERRORS)
> + {
> + /* Just ignore this character. */
> + ++*irreversible;
> + inptr += 4;
> + continue;
> + }
> +
> + *inptrp = inptr;
> + *outptrp = outptr;
> + return __GCONV_ILLEGAL_INPUT;
> + }
> + }
> + while (len > 0);
> +
> + *inptrp = inptr;
> + *outptrp = outptr;
> +
> + /* Determine the status. */
> + if (*inptrp == inend)
> + result = __GCONV_EMPTY_INPUT;
> + else if (*inptrp + 4 > inend)
> + result = __GCONV_INCOMPLETE_INPUT;
> + else
> + {
> + assert (*outptrp + 4 > outend);
> + result = __GCONV_FULL_OUTPUT;
> + }
> +
> + return result;
> +}
> +ICONV_VX_SINGLE (ucs4le_internal_loop)
> +# include
> +ICONV_VX_IFUNC (__gconv_transform_ucs4le_internal)
> +
> +/* Convert from UCS2 to the internal (UCS4-like) format. */
> +# define DEFINE_INIT 0
> +# define DEFINE_FINI 0
> +# define MIN_NEEDED_FROM 2
> +# define MIN_NEEDED_TO 4
> +# define FROM_DIRECTION 1
> +# define FROM_LOOP ICONV_VX_NAME (ucs2_internal_loop)
> +# define TO_LOOP ICONV_VX_NAME (ucs2_internal_loop) /* This is not used. */
> +# define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_ucs2_internal)
> +# define ONE_DIRECTION 1
> +
> +# define MIN_NEEDED_INPUT MIN_NEEDED_FROM
> +# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
> +# define LOOPFCT FROM_LOOP
> +# define BODY_ORIG_ERROR \
> + /* Surrogate characters in UCS-2 input are not valid. Reject \
> + them. (Catching this here is not security relevant.) */ \
> + STANDARD_FROM_LOOP_ERR_HANDLER (2);
> +# define BODY_ORIG \
> + { \
> + uint16_t u1 = get16 (inptr); \
> + \
> + if (__glibc_unlikely (u1 >= 0xd800 && u1 < 0xe000)) \
> + { \
> + BODY_ORIG_ERROR \
> + } \
> + \
> + *((uint32_t *) outptr) = u1; \
> + outptr += sizeof (uint32_t); \
> + inptr += 2; \
> + }
> +# define BODY \
> + { \
> + size_t len, tmp, tmp2; \
> + len = MIN ((inend - inptr) / 2, (outend - outptr) / 4); \
> + __asm__ volatile (".machine push\n\t" \
> + ".machine \"z13\"\n\t" \
> + ".machinemode \"zarch_nohighgprs\"\n\t" \
> + CONVERT_32BIT_SIZE_T ([R_LEN]) \
> + /* Setup to check for ch >= 0xd800 && ch < 0xe000. */ \
> + "larl %[R_TMP],9f\n\t" \
> + "vlm %%v20,%%v21,0(%[R_TMP])\n\t" \
> + "srlg %[R_TMP],%[R_LEN],3\n\t" \
> + "clgije %[R_TMP],0,1f\n\t" \
> + /* Process 16byte (8char) blocks. */ \
> + "0: vl %%v16,0(%[R_IN])\n\t" \
> + "vstrchs %%v19,%%v16,%%v20,%%v21\n\t" \
> + /* Enlarge UCS2 to UCS4. */ \
> + "vuplhh %%v17,%%v16\n\t" \
> + "vupllh %%v18,%%v16\n\t" \
> + "jno 10f\n\t" \
> + /* Store 32bytes to buf_out. */ \
> + "vstm %%v17,%%v18,0(%[R_OUT])\n\t" \
> + "la %[R_IN],16(%[R_IN])\n\t" \
> + "la %[R_OUT],32(%[R_OUT])\n\t" \
> + "brctg %[R_TMP],0b\n\t" \
> + "llgfr %[R_LEN],%[R_LEN]\n\t" \
> + "nilf %[R_LEN],7\n\t" \
> + /* Process <16bytes. */ \
> + "1: sll %[R_LEN],1\n\t" \
> + "ahik %[R_TMP],%[R_LEN],-1\n\t" \
> + "jl 20f\n\t" /* No further bytes available. */ \
> + "vll %%v16,%[R_TMP],0(%[R_IN])\n\t" \
> + "vstrchs %%v19,%%v16,%%v20,%%v21\n\t" \
> + /* Enlarge UCS2 to UCS4. */ \
> + "vuplhh %%v17,%%v16\n\t" \
> + "vupllh %%v18,%%v16\n\t" \
> + "vlgvb %[R_TMP],%%v19,7\n\t" \
> + "clr %[R_TMP],%[R_LEN]\n\t" \
> + "locgrhe %[R_TMP],%[R_LEN]\n\t" \
> + "locghihe %[R_LEN],0\n\t" \
> + "j 11f\n\t" \
> + /* v20: Vector string range compare values. */ \
> + "9: .short 0xd800,0xe000,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \
> + /* v21: Vector string range compare control-bits. \
> + element 0: =>; element 1: < */ \
> + ".short 0xa000,0x4000,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \
> + /* Found an element: ch >= 0xd800 && ch < 0xe000 */ \
> + "10: vlgvb %[R_TMP],%%v19,7\n\t" \
> + "11: la %[R_IN],0(%[R_TMP],%[R_IN])\n\t" \
> + "sll %[R_TMP],1\n\t" \
> + "lgr %[R_TMP2],%[R_TMP]\n\t" \
> + "ahi %[R_TMP],-1\n\t" \
> + "jl 20f\n\t" \
> + "vstl %%v17,%[R_TMP],0(%[R_OUT])\n\t" \
> + "ahi %[R_TMP],-16\n\t" \
> + "jl 19f\n\t" \
> + "vstl %%v18,%[R_TMP],16(%[R_OUT])\n\t" \
> + "19: la %[R_OUT],0(%[R_TMP2],%[R_OUT])\n\t" \
> + "20:\n\t" \
> + ".machine pop" \
> + : /* outputs */ [R_OUT] "+a" (outptr) \
> + , [R_IN] "+a" (inptr) \
> + , [R_TMP] "=a" (tmp) \
> + , [R_TMP2] "=a" (tmp2) \
> + , [R_LEN] "+d" (len) \
> + : /* inputs */ \
> + : /* 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") \
> + ); \
> + if (len > 0) \
> + { \
> + /* Found an invalid character at next input-char. */ \
> + BODY_ORIG_ERROR \
> + } \
> + }
> +
> +# define LOOP_NEED_FLAGS
> +# include
> +# include
> +# undef BODY_ORIG
> +# undef BODY_ORIG_ERROR
> +ICONV_VX_IFUNC (__gconv_transform_ucs2_internal)
> +
> +/* Convert from UCS2 in other endianness to the internal (UCS4-like) format. */
> +# define DEFINE_INIT 0
> +# define DEFINE_FINI 0
> +# define MIN_NEEDED_FROM 2
> +# define MIN_NEEDED_TO 4
> +# define FROM_DIRECTION 1
> +# define FROM_LOOP ICONV_VX_NAME (ucs2reverse_internal_loop)
> +# define TO_LOOP ICONV_VX_NAME (ucs2reverse_internal_loop) /* This is not used.*/
> +# define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_ucs2reverse_internal)
> +# define ONE_DIRECTION 1
> +
> +# define MIN_NEEDED_INPUT MIN_NEEDED_FROM
> +# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
> +# define LOOPFCT FROM_LOOP
> +# define BODY_ORIG_ERROR \
> + /* Surrogate characters in UCS-2 input are not valid. Reject \
> + them. (Catching this here is not security relevant.) */ \
> + if (! ignore_errors_p ()) \
> + { \
> + result = __GCONV_ILLEGAL_INPUT; \
> + break; \
> + } \
> + inptr += 2; \
> + ++*irreversible; \
> + continue;
> +
> +# define BODY_ORIG \
> + { \
> + uint16_t u1 = bswap_16 (get16 (inptr)); \
> + \
> + if (__glibc_unlikely (u1 >= 0xd800 && u1 < 0xe000)) \
> + { \
> + BODY_ORIG_ERROR \
> + } \
> + \
> + *((uint32_t *) outptr) = u1; \
> + outptr += sizeof (uint32_t); \
> + inptr += 2; \
> + }
> +# define BODY \
> + { \
> + size_t len, tmp, tmp2; \
> + len = MIN ((inend - inptr) / 2, (outend - outptr) / 4); \
> + __asm__ volatile (".machine push\n\t" \
> + ".machine \"z13\"\n\t" \
> + ".machinemode \"zarch_nohighgprs\"\n\t" \
> + CONVERT_32BIT_SIZE_T ([R_LEN]) \
> + /* Setup to check for ch >= 0xd800 && ch < 0xe000. */ \
> + "larl %[R_TMP],9f\n\t" \
> + "vlm %%v20,%%v22,0(%[R_TMP])\n\t" \
> + "srlg %[R_TMP],%[R_LEN],3\n\t" \
> + "clgije %[R_TMP],0,1f\n\t" \
> + /* Process 16byte (8char) blocks. */ \
> + "0: vl %%v16,0(%[R_IN])\n\t" \
> + "vperm %%v16,%%v16,%%v16,%%v22\n\t" \
> + "vstrchs %%v19,%%v16,%%v20,%%v21\n\t" \
> + /* Enlarge UCS2 to UCS4. */ \
> + "vuplhh %%v17,%%v16\n\t" \
> + "vupllh %%v18,%%v16\n\t" \
> + "jno 10f\n\t" \
> + /* Store 32bytes to buf_out. */ \
> + "vstm %%v17,%%v18,0(%[R_OUT])\n\t" \
> + "la %[R_IN],16(%[R_IN])\n\t" \
> + "la %[R_OUT],32(%[R_OUT])\n\t" \
> + "brctg %[R_TMP],0b\n\t" \
> + "llgfr %[R_LEN],%[R_LEN]\n\t" \
> + "nilf %[R_LEN],7\n\t" \
> + /* Process <16bytes. */ \
> + "1: sll %[R_LEN],1\n\t" \
> + "ahik %[R_TMP],%[R_LEN],-1\n\t" \
> + "jl 20f\n\t" /* No further bytes available. */ \
> + "vll %%v16,%[R_TMP],0(%[R_IN])\n\t" \
> + "vperm %%v16,%%v16,%%v16,%%v22\n\t" \
> + "vstrchs %%v19,%%v16,%%v20,%%v21\n\t" \
> + /* Enlarge UCS2 to UCS4. */ \
> + "vuplhh %%v17,%%v16\n\t" \
> + "vupllh %%v18,%%v16\n\t" \
> + "vlgvb %[R_TMP],%%v19,7\n\t" \
> + "clr %[R_TMP],%[R_LEN]\n\t" \
> + "locgrhe %[R_TMP],%[R_LEN]\n\t" \
> + "locghihe %[R_LEN],0\n\t" \
> + "j 11f\n\t" \
> + /* v20: Vector string range compare values. */ \
> + "9: .short 0xd800,0xe000,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \
> + /* v21: Vector string range compare control-bits. \
> + element 0: =>; element 1: < */ \
> + ".short 0xa000,0x4000,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \
> + /* v22: Vector permute mask. */ \
> + ".short 0x0100,0x0302,0x0504,0x0706\n\t" \
> + ".short 0x0908,0x0b0a,0x0d0c,0x0f0e\n\t" \
> + /* Found an element: ch >= 0xd800 && ch < 0xe000 */ \
> + "10: vlgvb %[R_TMP],%%v19,7\n\t" \
> + "11: la %[R_IN],0(%[R_TMP],%[R_IN])\n\t" \
> + "sll %[R_TMP],1\n\t" \
> + "lgr %[R_TMP2],%[R_TMP]\n\t" \
> + "ahi %[R_TMP],-1\n\t" \
> + "jl 20f\n\t" \
> + "vstl %%v17,%[R_TMP],0(%[R_OUT])\n\t" \
> + "ahi %[R_TMP],-16\n\t" \
> + "jl 19f\n\t" \
> + "vstl %%v18,%[R_TMP],16(%[R_OUT])\n\t" \
> + "19: la %[R_OUT],0(%[R_TMP2],%[R_OUT])\n\t" \
> + "20:\n\t" \
> + ".machine pop" \
> + : /* outputs */ [R_OUT] "+a" (outptr) \
> + , [R_IN] "+a" (inptr) \
> + , [R_TMP] "=a" (tmp) \
> + , [R_TMP2] "=a" (tmp2) \
> + , [R_LEN] "+d" (len) \
> + : /* inputs */ \
> + : /* 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") \
> + ); \
> + if (len > 0) \
> + { \
> + /* Found an invalid character at next input-char. */ \
> + BODY_ORIG_ERROR \
> + } \
> + }
> +# define LOOP_NEED_FLAGS
> +# include
> +# include
> +# undef BODY_ORIG
> +# undef BODY_ORIG_ERROR
> +ICONV_VX_IFUNC (__gconv_transform_ucs2reverse_internal)
> +
> +/* Convert from the internal (UCS4-like) format to UCS2. */
> +#define DEFINE_INIT 0
> +#define DEFINE_FINI 0
> +#define MIN_NEEDED_FROM 4
> +#define MIN_NEEDED_TO 2
> +#define FROM_DIRECTION 1
> +#define FROM_LOOP ICONV_VX_NAME (internal_ucs2_loop)
> +#define TO_LOOP ICONV_VX_NAME (internal_ucs2_loop) /* This is not used. */
> +#define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_internal_ucs2)
> +#define ONE_DIRECTION 1
> +
> +#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
> +#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
> +#define LOOPFCT FROM_LOOP
> +#define BODY_ORIG \
> + { \
> + uint32_t val = *((const uint32_t *) inptr); \
> + \
> + if (__glibc_unlikely (val >= 0x10000)) \
> + { \
> + UNICODE_TAG_HANDLER (val, 4); \
> + STANDARD_TO_LOOP_ERR_HANDLER (4); \
> + } \
> + else if (__glibc_unlikely (val >= 0xd800 && val < 0xe000)) \
> + { \
> + /* Surrogate characters in UCS-4 input are not valid. \
> + We must catch this, because the UCS-2 output might be \
> + interpreted as UTF-16 by other programs. If we let \
> + surrogates pass through, attackers could make a security \
> + hole exploit by synthesizing any desired plane 1-16 \
> + character. */ \
> + result = __GCONV_ILLEGAL_INPUT; \
> + if (! ignore_errors_p ()) \
> + break; \
> + inptr += 4; \
> + ++*irreversible; \
> + continue; \
> + } \
> + else \
> + { \
> + put16 (outptr, val); \
> + outptr += sizeof (uint16_t); \
> + inptr += 4; \
> + } \
> + }
> +# define BODY \
> + { \
> + if (__builtin_expect (inend - inptr < 32, 1) \
> + || outend - outptr < 16) \
> + /* Convert remaining bytes with c code. */ \
> + BODY_ORIG \
> + else \
> + { \
> + /* Convert in 32 byte blocks. */ \
> + size_t loop_count = (inend - inptr) / 32; \
> + size_t tmp, tmp2; \
> + if (loop_count > (outend - outptr) / 16) \
> + loop_count = (outend - outptr) / 16; \
> + __asm__ volatile (".machine push\n\t" \
> + ".machine \"z13\"\n\t" \
> + ".machinemode \"zarch_nohighgprs\"\n\t" \
> + CONVERT_32BIT_SIZE_T ([R_LI]) \
> + "larl %[R_I],3f\n\t" \
> + "vlm %%v20,%%v23,0(%[R_I])\n\t" \
> + "0:\n\t" \
> + "vlm %%v16,%%v17,0(%[R_IN])\n\t" \
> + /* Shorten UCS4 to UCS2. */ \
> + "vpkf %%v18,%%v16,%%v17\n\t" \
> + "vstrcfs %%v19,%%v16,%%v20,%%v21\n\t" \
> + "jno 11f\n\t" \
> + "1: vstrcfs %%v19,%%v17,%%v20,%%v21\n\t" \
> + "jno 10f\n\t" \
> + /* Store 16bytes to buf_out. */ \
> + "2: vst %%v18,0(%[R_OUT])\n\t" \
> + "la %[R_IN],32(%[R_IN])\n\t" \
> + "la %[R_OUT],16(%[R_OUT])\n\t" \
> + "brctg %[R_LI],0b\n\t" \
> + "j 20f\n\t" \
> + /* Setup to check for ch >= 0xd800. (v20, v21) */ \
> + "3: .long 0xd800,0xd800,0x0,0x0\n\t" \
> + ".long 0xa0000000,0xa0000000,0x0,0x0\n\t" \
> + /* Setup to check for ch >= 0xe000 \
> + && ch < 0x10000. (v22,v23) */ \
> + ".long 0xe000,0x10000,0x0,0x0\n\t" \
> + ".long 0xa0000000,0x40000000,0x0,0x0\n\t" \
> + /* v16 contains only valid chars. Check in v17: \
> + ch >= 0xe000 && ch <= 0xffff. */ \
> + "10: vstrcfs %%v19,%%v17,%%v22,%%v23,8\n\t" \
> + "jo 2b\n\t" /* All ch's in this range, proceed. */ \
> + "lhi %[R_TMP],16\n\t" \
> + "j 12f\n\t" \
> + /* Maybe v16 contains invalid chars. \
> + Check ch >= 0xe000 && ch <= 0xffff. */ \
> + "11: vstrcfs %%v19,%%v16,%%v22,%%v23,8\n\t" \
> + "jo 1b\n\t" /* All ch's in this range, proceed. */ \
> + "lhi %[R_TMP],0\n\t" \
> + "12: vlgvb %[R_I],%%v19,7\n\t" \
> + "agr %[R_I],%[R_TMP]\n\t" \
> + "la %[R_IN],0(%[R_I],%[R_IN])\n\t" \
> + "srl %[R_I],1\n\t" \
> + "ahi %[R_I],-1\n\t" \
> + "jl 20f\n\t" \
> + "vstl %%v18,%[R_I],0(%[R_OUT])\n\t" \
> + "la %[R_OUT],1(%[R_I],%[R_OUT])\n\t" \
> + "20:\n\t" \
> + ".machine pop" \
> + : /* outputs */ [R_OUT] "+a" (outptr) \
> + , [R_IN] "+a" (inptr) \
> + , [R_LI] "+d" (loop_count) \
> + , [R_I] "=a" (tmp2) \
> + , [R_TMP] "=d" (tmp) \
> + : /* inputs */ \
> + : /* 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") ASM_CLOBBER_VR ("v23") \
> + ); \
> + if (loop_count > 0) \
> + { \
> + /* Found an invalid character at next character. */ \
> + BODY_ORIG \
> + } \
> + } \
> + }
> +#define LOOP_NEED_FLAGS
> +#include
> +#include
> +# undef BODY_ORIG
> +ICONV_VX_IFUNC (__gconv_transform_internal_ucs2)
> +
> +/* Convert from the internal (UCS4-like) format to UCS2 in other endianness. */
> +#define DEFINE_INIT 0
> +#define DEFINE_FINI 0
> +#define MIN_NEEDED_FROM 4
> +#define MIN_NEEDED_TO 2
> +#define FROM_DIRECTION 1
> +#define FROM_LOOP ICONV_VX_NAME (internal_ucs2reverse_loop)
> +#define TO_LOOP ICONV_VX_NAME (internal_ucs2reverse_loop)/* This is not used.*/
> +#define FUNCTION_NAME ICONV_VX_NAME (__gconv_transform_internal_ucs2reverse)
> +#define ONE_DIRECTION 1
> +
> +#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
> +#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
> +#define LOOPFCT FROM_LOOP
> +#define BODY_ORIG \
> + { \
> + uint32_t val = *((const uint32_t *) inptr); \
> + if (__glibc_unlikely (val >= 0x10000)) \
> + { \
> + UNICODE_TAG_HANDLER (val, 4); \
> + STANDARD_TO_LOOP_ERR_HANDLER (4); \
> + } \
> + else if (__glibc_unlikely (val >= 0xd800 && val < 0xe000)) \
> + { \
> + /* Surrogate characters in UCS-4 input are not valid. \
> + We must catch this, because the UCS-2 output might be \
> + interpreted as UTF-16 by other programs. If we let \
> + surrogates pass through, attackers could make a security \
> + hole exploit by synthesizing any desired plane 1-16 \
> + character. */ \
> + if (! ignore_errors_p ()) \
> + { \
> + result = __GCONV_ILLEGAL_INPUT; \
> + break; \
> + } \
> + inptr += 4; \
> + ++*irreversible; \
> + continue; \
> + } \
> + else \
> + { \
> + put16 (outptr, bswap_16 (val)); \
> + outptr += sizeof (uint16_t); \
> + inptr += 4; \
> + } \
> + }
> +# define BODY \
> + { \
> + if (__builtin_expect (inend - inptr < 32, 1) \
> + || outend - outptr < 16) \
> + /* Convert remaining bytes with c code. */ \
> + BODY_ORIG \
> + else \
> + { \
> + /* Convert in 32 byte blocks. */ \
> + size_t loop_count = (inend - inptr) / 32; \
> + size_t tmp, tmp2; \
> + if (loop_count > (outend - outptr) / 16) \
> + loop_count = (outend - outptr) / 16; \
> + __asm__ volatile (".machine push\n\t" \
> + ".machine \"z13\"\n\t" \
> + ".machinemode \"zarch_nohighgprs\"\n\t" \
> + CONVERT_32BIT_SIZE_T ([R_LI]) \
> + "larl %[R_I],3f\n\t" \
> + "vlm %%v20,%%v24,0(%[R_I])\n\t" \
> + "0:\n\t" \
> + "vlm %%v16,%%v17,0(%[R_IN])\n\t" \
> + /* Shorten UCS4 to UCS2 and byteswap. */ \
> + "vpkf %%v18,%%v16,%%v17\n\t" \
> + "vperm %%v18,%%v18,%%v18,%%v24\n\t" \
> + "vstrcfs %%v19,%%v16,%%v20,%%v21\n\t" \
> + "jno 11f\n\t" \
> + "1: vstrcfs %%v19,%%v17,%%v20,%%v21\n\t" \
> + "jno 10f\n\t" \
> + /* Store 16bytes to buf_out. */ \
> + "2: vst %%v18,0(%[R_OUT])\n\t" \
> + "la %[R_IN],32(%[R_IN])\n\t" \
> + "la %[R_OUT],16(%[R_OUT])\n\t" \
> + "brctg %[R_LI],0b\n\t" \
> + "j 20f\n\t" \
> + /* Setup to check for ch >= 0xd800. (v20, v21) */ \
> + "3: .long 0xd800,0xd800,0x0,0x0\n\t" \
> + ".long 0xa0000000,0xa0000000,0x0,0x0\n\t" \
> + /* Setup to check for ch >= 0xe000 \
> + && ch < 0x10000. (v22,v23) */ \
> + ".long 0xe000,0x10000,0x0,0x0\n\t" \
> + ".long 0xa0000000,0x40000000,0x0,0x0\n\t" \
> + /* Vector permute mask (v24) */ \
> + ".short 0x0100,0x0302,0x0504,0x0706\n\t" \
> + ".short 0x0908,0x0b0a,0x0d0c,0x0f0e\n\t" \
> + /* v16 contains only valid chars. Check in v17: \
> + ch >= 0xe000 && ch <= 0xffff. */ \
> + "10: vstrcfs %%v19,%%v17,%%v22,%%v23,8\n\t" \
> + "jo 2b\n\t" /* All ch's in this range, proceed. */ \
> + "lhi %[R_TMP],16\n\t" \
> + "j 12f\n\t" \
> + /* Maybe v16 contains invalid chars. \
> + Check ch >= 0xe000 && ch <= 0xffff. */ \
> + "11: vstrcfs %%v19,%%v16,%%v22,%%v23,8\n\t" \
> + "jo 1b\n\t" /* All ch's in this range, proceed. */ \
> + "lhi %[R_TMP],0\n\t" \
> + "12: vlgvb %[R_I],%%v19,7\n\t" \
> + "agr %[R_I],%[R_TMP]\n\t" \
> + "la %[R_IN],0(%[R_I],%[R_IN])\n\t" \
> + "srl %[R_I],1\n\t" \
> + "ahi %[R_I],-1\n\t" \
> + "jl 20f\n\t" \
> + "vstl %%v18,%[R_I],0(%[R_OUT])\n\t" \
> + "la %[R_OUT],1(%[R_I],%[R_OUT])\n\t" \
> + "20:\n\t" \
> + ".machine pop" \
> + : /* outputs */ [R_OUT] "+a" (outptr) \
> + , [R_IN] "+a" (inptr) \
> + , [R_LI] "+d" (loop_count) \
> + , [R_I] "=a" (tmp2) \
> + , [R_TMP] "=d" (tmp) \
> + : /* inputs */ \
> + : /* 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") ASM_CLOBBER_VR ("v23") \
> + ASM_CLOBBER_VR ("v24") \
> + ); \
> + if (loop_count > 0) \
> + { \
> + /* Found an invalid character at next character. */ \
> + BODY_ORIG \
> + } \
> + } \
> + }
> +#define LOOP_NEED_FLAGS
> +#include
> +#include
> +# undef BODY_ORIG
> +ICONV_VX_IFUNC (__gconv_transform_internal_ucs2reverse)
> +
> +
> +#else
> +/* Generate the internal transformations without ifunc if build environment
> + lacks vector support. Instead simply include the common version. */
> +# include
> +#endif /* !defined HAVE_S390_VX_ASM_SUPPORT */
>