@@ -37,8 +37,10 @@ s390_libc_ifunc_expr (FROM_LOOP_DEFAULT, FROM_LOOP,
: FROM_LOOP_DEFAULT);
s390_libc_ifunc_expr (TO_LOOP_DEFAULT, TO_LOOP,
- (HAVE_TO_VX && (hwcap & HWCAP_S390_VX))
- ? TO_LOOP_VX
- : TO_LOOP_DEFAULT);
+ (HAVE_TO_VX_CU && (hwcap & HWCAP_S390_VXE))
+ ? TO_LOOP_VX_CU
+ : (HAVE_TO_VX && (hwcap & HWCAP_S390_VX))
+ ? TO_LOOP_VX
+ : TO_LOOP_DEFAULT);
#include <iconv/skeleton.c>
@@ -40,9 +40,11 @@
#if defined HAVE_S390_VX_ASM_SUPPORT && defined USE_MULTIARCH
# define HAVE_FROM_VX 1
# define HAVE_TO_VX 1
+# define HAVE_TO_VX_CU 1
#else
# define HAVE_FROM_VX 0
# define HAVE_TO_VX 0
+# define HAVE_TO_VX_CU 0
#endif
#if defined HAVE_S390_VX_GCC_SUPPORT
@@ -471,7 +473,7 @@ gconv_end (struct __gconv_step *data)
" vlm %%v30,%%v31,0(%[R_TMP])\n\t" \
CONVERT_32BIT_SIZE_T ([R_INLEN]) \
CONVERT_32BIT_SIZE_T ([R_OUTLEN]) \
- /* Loop which handles UTF-16 chars \
+ /* Loop which handles UTF-32 chars \
ch < 0xd800 || (ch > 0xdfff && ch < 0x10000). */ \
"0: clgijl %[R_INLEN],32,2f\n\t" \
" clgijl %[R_OUTLEN],16,2f\n\t" \
@@ -595,6 +597,109 @@ gconv_end (struct __gconv_step *data)
# define TO_LOOP_VX NULL
#endif /* HAVE_TO_VX != 1 */
+#if HAVE_TO_VX_CU == 1
+#define BODY_TO_VX_CU \
+ { \
+ 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" \
+ CONVERT_32BIT_SIZE_T ([R_INLEN]) \
+ CONVERT_32BIT_SIZE_T ([R_OUTLEN]) \
+ /* Loop which handles UTF-32 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 one 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) \
+ : /* 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 (inlen == 0) \
+ || result == __GCONV_FULL_OUTPUT) \
+ break; \
+ if (inlen < 4) \
+ { \
+ result = __GCONV_INCOMPLETE_INPUT; \
+ break; \
+ } \
+ \
+ STANDARD_TO_LOOP_ERR_HANDLER (4); \
+ }
+
+/* Generate loop-function with hardware vector and utf-convert instructions. */
+# define MIN_NEEDED_INPUT MIN_NEEDED_TO
+# define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
+# define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
+# define TO_LOOP_VX_CU __to_utf16_loop_vx_cu
+# define LOOPFCT TO_LOOP_VX_CU
+# define LOOP_NEED_FLAGS
+# define BODY BODY_TO_VX_CU
+# include <iconv/loop.c>
+#else
+# define TO_LOOP_VX_CU NULL
+#endif /* HAVE_TO_VX_CU != 1 */
+
/* This file also exists in sysdeps/s390/multiarch/ which
generates ifunc resolvers for FROM/TO_LOOP functions
and includes iconv/skeleton.c afterwards. */