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SUSE:SLE-12-SP5:GA
glibc-utils.15628
0001-S390-Optimize-utf16-utf32-module.patch
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File 0001-S390-Optimize-utf16-utf32-module.patch of Package glibc-utils.15628
2016-05-25 Stefan Liebler <stli@linux.vnet.ibm.com> * sysdeps/s390/s390-64/utf16-utf32-z9.c: Use ifunc to select c, etf3eh or new vector loop-variant. Index: glibc-2.22/sysdeps/s390/s390-64/utf16-utf32-z9.c =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/utf16-utf32-z9.c +++ glibc-2.22/sysdeps/s390/s390-64/utf16-utf32-z9.c @@ -30,47 +30,27 @@ #include <dl-procinfo.h> #include <gconv.h> +#if defined HAVE_S390_VX_GCC_SUPPORT +# define ASM_CLOBBER_VR(NR) , NR +#else +# define ASM_CLOBBER_VR(NR) +#endif + /* UTF-32 big endian byte order mark. */ #define BOM_UTF32 0x0000feffu /* UTF-16 big endian byte order mark. */ -#define BOM_UTF16 0xfeff +#define BOM_UTF16 0xfeff #define DEFINE_INIT 0 #define DEFINE_FINI 0 #define MIN_NEEDED_FROM 2 #define MAX_NEEDED_FROM 4 #define MIN_NEEDED_TO 4 -#define FROM_LOOP from_utf16_loop -#define TO_LOOP to_utf16_loop +#define FROM_LOOP __from_utf16_loop +#define TO_LOOP __to_utf16_loop #define FROM_DIRECTION (dir == from_utf16) #define ONE_DIRECTION 0 -#define PREPARE_LOOP \ - enum direction dir = ((struct utf16_data *) step->__data)->dir; \ - int emit_bom = ((struct utf16_data *) step->__data)->emit_bom; \ - \ - if (emit_bom && !data->__internal_use \ - && data->__invocation_counter == 0) \ - { \ - if (dir == to_utf16) \ - { \ - /* Emit the UTF-16 Byte Order Mark. */ \ - if (__glibc_unlikely (outbuf + 2 > outend)) \ - return __GCONV_FULL_OUTPUT; \ - \ - put16u (outbuf, BOM_UTF16); \ - outbuf += 2; \ - } \ - else \ - { \ - /* Emit the UTF-32 Byte Order Mark. */ \ - if (__glibc_unlikely (outbuf + 4 > outend)) \ - return __GCONV_FULL_OUTPUT; \ - \ - put32u (outbuf, BOM_UTF32); \ - outbuf += 4; \ - } \ - } /* Direction of the transformation. */ enum direction @@ -169,16 +149,16 @@ gconv_end (struct __gconv_step *data) register unsigned long long outlen asm("11") = outend - outptr; \ uint64_t cc = 0; \ \ - asm volatile (".machine push \n\t" \ - ".machine \"z9-109\" \n\t" \ - "0: " INSTRUCTION " \n\t" \ - ".machine pop \n\t" \ - " jo 0b \n\t" \ - " ipm %2 \n" \ - : "+a" (pOutput), "+a" (pInput), "+d" (cc), \ - "+d" (outlen), "+d" (inlen) \ - : \ - : "cc", "memory"); \ + __asm__ __volatile__ (".machine push \n\t" \ + ".machine \"z9-109\" \n\t" \ + "0: " INSTRUCTION " \n\t" \ + ".machine pop \n\t" \ + " jo 0b \n\t" \ + " ipm %2 \n" \ + : "+a" (pOutput), "+a" (pInput), "+d" (cc), \ + "+d" (outlen), "+d" (inlen) \ + : \ + : "cc", "memory"); \ \ inptr = pInput; \ outptr = pOutput; \ @@ -187,44 +167,46 @@ gconv_end (struct __gconv_step *data) if (cc == 1) \ { \ result = __GCONV_FULL_OUTPUT; \ - break; \ } \ else if (cc == 2) \ { \ result = __GCONV_ILLEGAL_INPUT; \ - break; \ } \ } +#define PREPARE_LOOP \ + enum direction dir = ((struct utf16_data *) step->__data)->dir; \ + int emit_bom = ((struct utf16_data *) step->__data)->emit_bom; \ + \ + if (emit_bom && !data->__internal_use \ + && data->__invocation_counter == 0) \ + { \ + if (dir == to_utf16) \ + { \ + /* Emit the UTF-16 Byte Order Mark. */ \ + if (__glibc_unlikely (outbuf + 2 > outend)) \ + return __GCONV_FULL_OUTPUT; \ + \ + put16u (outbuf, BOM_UTF16); \ + outbuf += 2; \ + } \ + else \ + { \ + /* Emit the UTF-32 Byte Order Mark. */ \ + if (__glibc_unlikely (outbuf + 4 > outend)) \ + return __GCONV_FULL_OUTPUT; \ + \ + put32u (outbuf, BOM_UTF32); \ + outbuf += 4; \ + } \ + } + /* Conversion function from UTF-16 to UTF-32 internal/BE. */ -#define MIN_NEEDED_INPUT MIN_NEEDED_FROM -#define MAX_NEEDED_INPUT MAX_NEEDED_FROM -#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO -#define LOOPFCT FROM_LOOP /* The software routine is copied from utf-16.c (minus bytes swapping). */ -#define BODY \ +#define BODY_FROM_C \ { \ - /* The hardware instruction currently fails to report an error for \ - isolated low surrogates so we have to disable the instruction \ - until this gets resolved. */ \ - if (0) /* (GLRO (dl_hwcap) & HWCAP_S390_ETF3EH) */ \ - { \ - HARDWARE_CONVERT ("cu24 %0, %1, 1"); \ - if (inptr != inend) \ - { \ - /* Check if the third byte is \ - a valid start of a UTF-16 surrogate. */ \ - if (inend - inptr == 3 && (inptr[3] & 0xfc) != 0xdc) \ - STANDARD_FROM_LOOP_ERR_HANDLER (3); \ - \ - result = __GCONV_INCOMPLETE_INPUT; \ - break; \ - } \ - continue; \ - } \ - \ uint16_t u1 = get16 (inptr); \ \ if (__builtin_expect (u1 < 0xd800, 1) || u1 > 0xdfff) \ @@ -235,15 +217,15 @@ gconv_end (struct __gconv_step *data) } \ else \ { \ - /* An isolated low-surrogate was found. This has to be \ + /* An isolated low-surrogate was found. This has to be \ considered ill-formed. */ \ - if (__glibc_unlikely (u1 >= 0xdc00)) \ + if (__glibc_unlikely (u1 >= 0xdc00)) \ { \ STANDARD_FROM_LOOP_ERR_HANDLER (2); \ } \ /* It's a surrogate character. At least the first word says \ it is. */ \ - if (__glibc_unlikely (inptr + 4 > inend)) \ + if (__glibc_unlikely (inptr + 4 > inend)) \ { \ /* We don't have enough input for another complete input \ character. */ \ @@ -266,48 +248,200 @@ gconv_end (struct __gconv_step *data) } \ outptr += 4; \ } -#define LOOP_NEED_FLAGS -#include <iconv/loop.c> + +#define BODY_FROM_VX \ + { \ + size_t inlen = inend - inptr; \ + size_t outlen = outend - outptr; \ + unsigned long tmp, tmp2, tmp3; \ + asm volatile (".machine push\n\t" \ + ".machine \"z13\"\n\t" \ + ".machinemode \"zarch_nohighgprs\"\n\t" \ + /* Setup to check for surrogates. */ \ + " larl %[R_TMP],9f\n\t" \ + " vlm %%v30,%%v31,0(%[R_TMP])\n\t" \ + /* Loop which handles UTF-16 chars <0xd800, >0xdfff. */ \ + "0: clgijl %[R_INLEN],16,2f\n\t" \ + " clgijl %[R_OUTLEN],32,2f\n\t" \ + "1: vl %%v16,0(%[R_IN])\n\t" \ + /* Check for surrogate chars. */ \ + " vstrchs %%v19,%%v16,%%v30,%%v31\n\t" \ + " jno 10f\n\t" \ + /* Enlarge to UTF-32. */ \ + " vuplhh %%v17,%%v16\n\t" \ + " la %[R_IN],16(%[R_IN])\n\t" \ + " vupllh %%v18,%%v16\n\t" \ + " aghi %[R_INLEN],-16\n\t" \ + /* Store 32 bytes to buf_out. */ \ + " vstm %%v17,%%v18,0(%[R_OUT])\n\t" \ + " aghi %[R_OUTLEN],-32\n\t" \ + " la %[R_OUT],32(%[R_OUT])\n\t" \ + " clgijl %[R_INLEN],16,2f\n\t" \ + " clgijl %[R_OUTLEN],32,2f\n\t" \ + " j 1b\n\t" \ + /* Setup to check for ch >= 0xd800 && ch <= 0xdfff. (v30, v31) */ \ + "9: .short 0xd800,0xdfff,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \ + " .short 0xa000,0xc000,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \ + /* At least on uint16_t is in range of surrogates. \ + Store the preceding chars. */ \ + "10: vlgvb %[R_TMP],%%v19,7\n\t" \ + " vuplhh %%v17,%%v16\n\t" \ + " sllg %[R_TMP3],%[R_TMP],1\n\t" /* Number of out bytes. */ \ + " ahik %[R_TMP2],%[R_TMP3],-1\n\t" /* Highest index to store. */ \ + " jl 12f\n\t" \ + " vstl %%v17,%[R_TMP2],0(%[R_OUT])\n\t" \ + " vupllh %%v18,%%v16\n\t" \ + " ahi %[R_TMP2],-16\n\t" \ + " jl 11f\n\t" \ + " vstl %%v18,%[R_TMP2],16(%[R_OUT])\n\t" \ + "11: \n\t" /* Update pointers. */ \ + " la %[R_IN],0(%[R_TMP],%[R_IN])\n\t" \ + " slgr %[R_INLEN],%[R_TMP]\n\t" \ + " la %[R_OUT],0(%[R_TMP3],%[R_OUT])\n\t" \ + " slgr %[R_OUTLEN],%[R_TMP3]\n\t" \ + /* Calculate remaining uint16_t values in loaded vrs. */ \ + "12: lghi %[R_TMP2],16\n\t" \ + " sgr %[R_TMP2],%[R_TMP]\n\t" \ + " srl %[R_TMP2],1\n\t" \ + " llh %[R_TMP],0(%[R_IN])\n\t" \ + " aghi %[R_OUTLEN],-4\n\t" \ + " j 16f\n\t" \ + /* Handle remaining bytes. */ \ + "2: \n\t" \ + /* Zero, one or more bytes available? */ \ + " clgfi %[R_INLEN],1\n\t" \ + " je 97f\n\t" /* Only one byte available. */ \ + " jl 99f\n\t" /* End if no bytes available. */ \ + /* Calculate remaining uint16_t values in inptr. */ \ + " srlg %[R_TMP2],%[R_INLEN],1\n\t" \ + /* Handle remaining uint16_t values. */ \ + "13: llh %[R_TMP],0(%[R_IN])\n\t" \ + " slgfi %[R_OUTLEN],4\n\t" \ + " jl 96f \n\t" \ + " clfi %[R_TMP],0xd800\n\t" \ + " jhe 15f\n\t" \ + "14: st %[R_TMP],0(%[R_OUT])\n\t" \ + " la %[R_IN],2(%[R_IN])\n\t" \ + " aghi %[R_INLEN],-2\n\t" \ + " la %[R_OUT],4(%[R_OUT])\n\t" \ + " brctg %[R_TMP2],13b\n\t" \ + " j 0b\n\t" /* Switch to vx-loop. */ \ + /* Handle UTF-16 surrogate pair. */ \ + "15: clfi %[R_TMP],0xdfff\n\t" \ + " jh 14b\n\t" /* Jump away if ch > 0xdfff. */ \ + "16: clfi %[R_TMP],0xdc00\n\t" \ + " jhe 98f\n\t" /* Jump away in case of low-surrogate. */ \ + " slgfi %[R_INLEN],4\n\t" \ + " jl 97f\n\t" /* Big enough input? */ \ + " llh %[R_TMP3],2(%[R_IN])\n\t" /* Load low surrogate. */ \ + " slfi %[R_TMP],0xd7c0\n\t" \ + " sll %[R_TMP],10\n\t" \ + " risbgn %[R_TMP],%[R_TMP3],54,63,0\n\t" /* Insert klmnopqrst. */ \ + " nilf %[R_TMP3],0xfc00\n\t" \ + " clfi %[R_TMP3],0xdc00\n\t" /* Check if it starts with 0xdc00. */ \ + " jne 98f\n\t" \ + " st %[R_TMP],0(%[R_OUT])\n\t" \ + " la %[R_IN],4(%[R_IN])\n\t" \ + " la %[R_OUT],4(%[R_OUT])\n\t" \ + " aghi %[R_TMP2],-2\n\t" \ + " jh 13b\n\t" /* Handle remaining uint16_t values. */ \ + " j 0b\n\t" /* Switch to vx-loop. */ \ + "96: \n\t" /* Return full output. */ \ + " lghi %[R_RES],%[RES_OUT_FULL]\n\t" \ + " j 99f\n\t" \ + "97: \n\t" /* Return incomplete input. */ \ + " lghi %[R_RES],%[RES_IN_FULL]\n\t" \ + " j 99f\n\t" \ + "98:\n\t" /* Return Illegal character. */ \ + " lghi %[R_RES],%[RES_IN_ILL]\n\t" \ + "99:\n\t" \ + ".machine pop" \ + : /* outputs */ [R_IN] "+a" (inptr) \ + , [R_INLEN] "+d" (inlen), [R_OUT] "+a" (outptr) \ + , [R_OUTLEN] "+d" (outlen), [R_TMP] "=a" (tmp) \ + , [R_TMP2] "=d" (tmp2), [R_TMP3] "=a" (tmp3) \ + , [R_RES] "+d" (result) \ + : /* inputs */ \ + [RES_OUT_FULL] "i" (__GCONV_FULL_OUTPUT) \ + , [RES_IN_ILL] "i" (__GCONV_ILLEGAL_INPUT) \ + , [RES_IN_FULL] "i" (__GCONV_INCOMPLETE_INPUT) \ + : /* clobber list */ "memory", "cc" \ + ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v17") \ + ASM_CLOBBER_VR ("v18") ASM_CLOBBER_VR ("v19") \ + ASM_CLOBBER_VR ("v30") ASM_CLOBBER_VR ("v31") \ + ); \ + if (__glibc_likely (inptr == inend) \ + || result != __GCONV_ILLEGAL_INPUT) \ + break; \ + \ + STANDARD_FROM_LOOP_ERR_HANDLER (2); \ + } + + +/* Generate loop-function with software routing. */ +#define MIN_NEEDED_INPUT MIN_NEEDED_FROM +#define MAX_NEEDED_INPUT MAX_NEEDED_FROM +#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO +#if defined HAVE_S390_VX_ASM_SUPPORT +# define LOOPFCT __from_utf16_loop_c +# define LOOP_NEED_FLAGS +# define BODY BODY_FROM_C +# include <iconv/loop.c> + +/* Generate loop-function with hardware vector instructions. */ +# define MIN_NEEDED_INPUT MIN_NEEDED_FROM +# define MAX_NEEDED_INPUT MAX_NEEDED_FROM +# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO +# define LOOPFCT __from_utf16_loop_vx +# define LOOP_NEED_FLAGS +# define BODY BODY_FROM_VX +# include <iconv/loop.c> + +/* Generate ifunc'ed loop function. */ +__typeof(__from_utf16_loop_c) +__attribute__ ((ifunc ("__from_utf16_loop_resolver"))) +__from_utf16_loop; + +static void * +__from_utf16_loop_resolver (unsigned long int dl_hwcap) +{ + if (dl_hwcap & HWCAP_S390_VX) + return __from_utf16_loop_vx; + else + return __from_utf16_loop_c; +} + +strong_alias (__from_utf16_loop_c_single, __from_utf16_loop_single) +#else +# define LOOPFCT FROM_LOOP +# define LOOP_NEED_FLAGS +# define BODY BODY_FROM_C +# include <iconv/loop.c> +#endif /* Conversion from UTF-32 internal/BE to UTF-16. */ -#define MIN_NEEDED_INPUT MIN_NEEDED_TO -#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM -#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM -#define LOOPFCT TO_LOOP /* The software routine is copied from utf-16.c (minus bytes swapping). */ -#define BODY \ +#define BODY_TO_C \ { \ - if (GLRO (dl_hwcap) & HWCAP_S390_ETF3EH) \ - { \ - HARDWARE_CONVERT ("cu42 %0, %1"); \ - \ - if (inptr != inend) \ - { \ - result = __GCONV_INCOMPLETE_INPUT; \ - break; \ - } \ - continue; \ - } \ - \ uint32_t c = get32 (inptr); \ \ if (__builtin_expect (c <= 0xd7ff, 1) \ || (c >=0xdc00 && c <= 0xffff)) \ { \ - /* Two UTF-16 chars. */ \ - put16 (outptr, c); \ + /* Two UTF-16 chars. */ \ + put16 (outptr, c); \ } \ else if (__builtin_expect (c >= 0x10000, 1) \ && __builtin_expect (c <= 0x10ffff, 1)) \ { \ /* Four UTF-16 chars. */ \ - uint16_t zabcd = ((c & 0x1f0000) >> 16) - 1; \ + uint16_t zabcd = ((c & 0x1f0000) >> 16) - 1; \ uint16_t out; \ \ /* Generate a surrogate character. */ \ - if (__glibc_unlikely (outptr + 4 > outend)) \ + if (__glibc_unlikely (outptr + 4 > outend)) \ { \ /* Overflow in the output buffer. */ \ result = __GCONV_FULL_OUTPUT; \ @@ -326,12 +460,165 @@ gconv_end (struct __gconv_step *data) } \ else \ { \ - STANDARD_TO_LOOP_ERR_HANDLER (4); \ + STANDARD_TO_LOOP_ERR_HANDLER (4); \ } \ outptr += 2; \ inptr += 4; \ } + +#define BODY_TO_ETF3EH \ + { \ + HARDWARE_CONVERT ("cu42 %0, %1"); \ + \ + if (__glibc_likely (inptr == inend) \ + || result == __GCONV_FULL_OUTPUT) \ + break; \ + \ + if (inptr + 4 > inend) \ + { \ + result = __GCONV_INCOMPLETE_INPUT; \ + break; \ + } \ + \ + STANDARD_TO_LOOP_ERR_HANDLER (4); \ + } + +#define BODY_TO_VX \ + { \ + register const unsigned char* pInput asm ("8") = inptr; \ + register size_t inlen asm ("9") = inend - inptr; \ + register unsigned char* pOutput asm ("10") = outptr; \ + register size_t outlen asm("11") = outend - outptr; \ + unsigned long tmp, tmp2, tmp3; \ + asm volatile (".machine push\n\t" \ + ".machine \"z13\"\n\t" \ + ".machinemode \"zarch_nohighgprs\"\n\t" \ + /* Setup to check for surrogates. */ \ + " larl %[R_TMP],9f\n\t" \ + " vlm %%v30,%%v31,0(%[R_TMP])\n\t" \ + /* Loop which handles UTF-16 chars \ + ch < 0xd800 || (ch > 0xdfff && ch < 0x10000). */ \ + "0: clgijl %[R_INLEN],32,20f\n\t" \ + " clgijl %[R_OUTLEN],16,20f\n\t" \ + "1: vlm %%v16,%%v17,0(%[R_IN])\n\t" \ + " lghi %[R_TMP2],0\n\t" \ + /* Shorten to UTF-16. */ \ + " vpkf %%v18,%%v16,%%v17\n\t" \ + /* Check for surrogate chars. */ \ + " vstrcfs %%v19,%%v16,%%v30,%%v31\n\t" \ + " jno 10f\n\t" \ + " vstrcfs %%v19,%%v17,%%v30,%%v31\n\t" \ + " jno 11f\n\t" \ + /* Store 16 bytes to buf_out. */ \ + " vst %%v18,0(%[R_OUT])\n\t" \ + " la %[R_IN],32(%[R_IN])\n\t" \ + " aghi %[R_INLEN],-32\n\t" \ + " aghi %[R_OUTLEN],-16\n\t" \ + " la %[R_OUT],16(%[R_OUT])\n\t" \ + " clgijl %[R_INLEN],32,20f\n\t" \ + " clgijl %[R_OUTLEN],16,20f\n\t" \ + " j 1b\n\t" \ + /* Setup to check for ch >= 0xd800 && ch <= 0xdfff \ + and check for ch >= 0x10000. (v30, v31) */ \ + "9: .long 0xd800,0xdfff,0x10000,0x10000\n\t" \ + " .long 0xa0000000,0xc0000000, 0xa0000000,0xa0000000\n\t" \ + /* At least on UTF32 char is in range of surrogates. \ + Store the preceding characters. */ \ + "11: ahi %[R_TMP2],16\n\t" \ + "10: vlgvb %[R_TMP],%%v19,7\n\t" \ + " agr %[R_TMP],%[R_TMP2]\n\t" \ + " srlg %[R_TMP3],%[R_TMP],1\n\t" /* Number of out bytes. */ \ + " ahik %[R_TMP2],%[R_TMP3],-1\n\t" /* Highest index to store. */ \ + " jl 20f\n\t" \ + " vstl %%v18,%[R_TMP2],0(%[R_OUT])\n\t" \ + /* Update pointers. */ \ + " la %[R_IN],0(%[R_TMP],%[R_IN])\n\t" \ + " slgr %[R_INLEN],%[R_TMP]\n\t" \ + " la %[R_OUT],0(%[R_TMP3],%[R_OUT])\n\t" \ + " slgr %[R_OUTLEN],%[R_TMP3]\n\t" \ + /* Handles UTF16 surrogates with convert instruction. */ \ + "20: cu42 %[R_OUT],%[R_IN]\n\t" \ + " jo 0b\n\t" /* Try vector implemenation again. */ \ + " lochil %[R_RES],%[RES_OUT_FULL]\n\t" /* cc == 1. */ \ + " lochih %[R_RES],%[RES_IN_ILL]\n\t" /* cc == 2. */ \ + ".machine pop" \ + : /* outputs */ [R_IN] "+a" (pInput) \ + , [R_INLEN] "+d" (inlen), [R_OUT] "+a" (pOutput) \ + , [R_OUTLEN] "+d" (outlen), [R_TMP] "=a" (tmp) \ + , [R_TMP2] "=d" (tmp2), [R_TMP3] "=a" (tmp3) \ + , [R_RES] "+d" (result) \ + : /* inputs */ \ + [RES_OUT_FULL] "i" (__GCONV_FULL_OUTPUT) \ + , [RES_IN_ILL] "i" (__GCONV_ILLEGAL_INPUT) \ + , [RES_IN_FULL] "i" (__GCONV_INCOMPLETE_INPUT) \ + : /* clobber list */ "memory", "cc" \ + ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v17") \ + ASM_CLOBBER_VR ("v18") ASM_CLOBBER_VR ("v19") \ + ASM_CLOBBER_VR ("v30") ASM_CLOBBER_VR ("v31") \ + ); \ + inptr = pInput; \ + outptr = pOutput; \ + \ + if (__glibc_likely (inptr == inend) \ + || result == __GCONV_FULL_OUTPUT) \ + break; \ + if (inptr + 4 > inend) \ + { \ + result = __GCONV_INCOMPLETE_INPUT; \ + break; \ + } \ + STANDARD_TO_LOOP_ERR_HANDLER (4); \ + } + +/* Generate loop-function with software routing. */ +#define MIN_NEEDED_INPUT MIN_NEEDED_TO +#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM +#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM +#define LOOPFCT __to_utf16_loop_c #define LOOP_NEED_FLAGS +#define BODY BODY_TO_C #include <iconv/loop.c> +/* Generate loop-function with hardware utf-convert instruction. */ +#define MIN_NEEDED_INPUT MIN_NEEDED_TO +#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM +#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM +#define LOOPFCT __to_utf16_loop_etf3eh +#define LOOP_NEED_FLAGS +#define BODY BODY_TO_ETF3EH +#include <iconv/loop.c> + +#if defined HAVE_S390_VX_ASM_SUPPORT +/* Generate loop-function with hardware vector instructions. */ +# define MIN_NEEDED_INPUT MIN_NEEDED_TO +# define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM +# define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM +# define LOOPFCT __to_utf16_loop_vx +# define LOOP_NEED_FLAGS +# define BODY BODY_TO_VX +# include <iconv/loop.c> +#endif + +/* Generate ifunc'ed loop function. */ +__typeof(__to_utf16_loop_c) +__attribute__ ((ifunc ("__to_utf16_loop_resolver"))) +__to_utf16_loop; + +static void * +__to_utf16_loop_resolver (unsigned long int dl_hwcap) +{ +#if defined HAVE_S390_VX_ASM_SUPPORT + if (dl_hwcap & HWCAP_S390_VX) + return __to_utf16_loop_vx; + else +#endif + if (dl_hwcap & HWCAP_S390_ETF3EH) + return __to_utf16_loop_etf3eh; + else + return __to_utf16_loop_c; +} + +strong_alias (__to_utf16_loop_c_single, __to_utf16_loop_single) + + #include <iconv/skeleton.c>
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