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-rw-r--r--sysdeps/s390/multiarch/Makefile6
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c3
-rw-r--r--sysdeps/s390/multiarch/strspn-c.c28
-rw-r--r--sysdeps/s390/multiarch/strspn-vx.S256
-rw-r--r--sysdeps/s390/multiarch/strspn.c27
-rw-r--r--sysdeps/s390/multiarch/wcsspn-c.c31
-rw-r--r--sysdeps/s390/multiarch/wcsspn-vx.S270
-rw-r--r--sysdeps/s390/multiarch/wcsspn.c27
8 files changed, 646 insertions, 2 deletions
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index b8b141e..9403169 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -11,7 +11,8 @@ sysdep_routines += strlen strlen-vx strlen-c \
strncmp strncmp-vx strncmp-c \
strchr strchr-vx strchr-c \
strchrnul strchrnul-vx strchrnul-c \
- strrchr strrchr-vx strrchr-c
+ strrchr strrchr-vx strrchr-c \
+ strspn strspn-vx strspn-c
endif
ifeq ($(subdir),wcsmbs)
@@ -27,5 +28,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
wcsncmp wcsncmp-vx wcsncmp-c \
wcschr wcschr-vx wcschr-c \
wcschrnul wcschrnul-vx wcschrnul-c \
- wcsrchr wcsrchr-vx wcsrchr-c
+ wcsrchr wcsrchr-vx wcsrchr-c \
+ wcsspn wcsspn-vx wcsspn-c
endif
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index ee84d80..cbedf64 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -118,6 +118,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_VX_IMPL (strrchr);
IFUNC_VX_IMPL (wcsrchr);
+ IFUNC_VX_IMPL (strspn);
+ IFUNC_VX_IMPL (wcsspn);
+
#endif /* HAVE_S390_VX_ASM_SUPPORT */
return i;
diff --git a/sysdeps/s390/multiarch/strspn-c.c b/sysdeps/s390/multiarch/strspn-c.c
new file mode 100644
index 0000000..ca330d5
--- /dev/null
+++ b/sysdeps/s390/multiarch/strspn-c.c
@@ -0,0 +1,28 @@
+/* Default strspn implementation for S/390.
+ Copyright (C) 2015 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 && IS_IN (libc)
+# define STRSPN __strspn_c
+# ifdef SHARED
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ __hidden_ver1 (__strspn_c, __GI_strspn, __strspn_c);
+# endif /* SHARED */
+
+# include <string/strspn.c>
+#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
diff --git a/sysdeps/s390/multiarch/strspn-vx.S b/sysdeps/s390/multiarch/strspn-vx.S
new file mode 100644
index 0000000..f224e26
--- /dev/null
+++ b/sysdeps/s390/multiarch/strspn-vx.S
@@ -0,0 +1,256 @@
+/* Vector optimized 32/64 bit S/390 version of strspn.
+ Copyright (C) 2015 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 && IS_IN (libc)
+
+# include "sysdep.h"
+# include "asm-syntax.h"
+
+ .text
+
+/* size_t strspn (const char *s, const char * accept)
+ The strspn() function calculates the length of the initial segment
+ of s which consists entirely of characters in accept.
+
+ This method checks the length of accept string. If it fits entirely
+ in one vector register, a fast algorithm is used, which does not need
+ to check multiple parts of accept-string. Otherwise a slower full
+ check of accept-string is used.
+
+ register overview:
+ r3: pointer to start of accept-string
+ r2: pointer to start of search-string
+ r4: loaded byte count of vl search-string
+ r0: found byte index
+ r1: current return len of s
+ v16: search-string
+ v17: accept-string
+ v18: temp-vreg
+
+ ONLY FOR SLOW:
+ v19: first accept-string
+ v20: zero for preparing acc-vector
+ v21: global mask; 1 indicates a match between
+ search-string-vreg and any accept-character
+ v22: current mask; 1 indicates a match between
+ search-string-vreg and any accept-character in current acc-vreg
+ v30, v31: for re-/storing registers r6, r8, r9
+ r5: current len of accept-string
+ r6: zero-index in search-string or 16 if no zero
+ or min(zero-index, loaded byte count)
+ r8: >0, if former accept-string-part contains a zero,
+ otherwise =0;
+ r9: loaded byte count of vlbb accept-string
+*/
+ENTRY(__strspn_vx)
+ .machine "z13"
+ .machinemode "zarch_nohighgprs"
+
+ /*
+ Check if accept-string fits in one vreg:
+ ----------------------------------------
+ */
+ vlbb %v17,0(%r3),6 /* Load accept. */
+ lcbb %r4,0(%r3),6
+ jo .Lcheck_onbb /* Special case if accept lays
+ on block-boundary. */
+.Lcheck_notonbb:
+ vistrbs %v17,%v17 /* Fill with zeros after first zero. */
+ je .Lfast /* Zero found -> accept fits in one vreg. */
+ j .Lslow /* No zero -> accept exceeds one vreg. */
+
+.Lcheck_onbb:
+ /* Accept lays on block-boundary. */
+ vfenezb %v18,%v17,%v17 /* Search zero in loaded accept bytes. */
+ vlgvb %r0,%v18,7 /* Get index of zero or 16 if not found. */
+ clrjl %r0,%r4,.Lcheck_notonbb /* Zero index < loaded bytes count ->
+ Accept fits in one vreg;
+ Fill with zeros and proceed
+ with FAST. */
+ vl %v17,0(%r3) /* Load accept, which exceeds loaded bytes. */
+ j .Lcheck_notonbb /* Check if accept fits in one vreg. */
+
+
+ /*
+ Search s for accept in one vreg
+ -------------------------------
+ */
+.Lfast:
+ /* Complete accept-string is in v17 and remaining bytes are zero. */
+
+ vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
+ lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
+
+ vfaezbs %v16,%v16,%v17,8 /* Find first element in v16
+ unequal to any in v17
+ or first zero element. */
+ vlgvb %r0,%v16,7 /* Load byte index of found element. */
+ /* If found index is within loaded bytes (%r0 < %r1),
+ return with found element index (=equal count). */
+ clr %r0,%r1
+ locgrl %r2,%r0
+ blr %r14
+
+ /* Align s to 16 byte. */
+ risbgn %r4,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
+ lghi %r1,16 /* current_len = 16. */
+ slr %r1,%r4 /* Compute bytes to 16bytes boundary. */
+
+.Lfast_loop:
+ vl %v16,0(%r1,%r2) /* Load search-string. */
+ vfaezbs %v16,%v16,%v17,8 /* Find first element in v16
+ unequal to any in v17
+ or first zero element. */
+ jno .Lfast_loop_found
+ vl %v16,16(%r1,%r2)
+ vfaezbs %v16,%v16,%v17,8
+ jno .Lfast_loop_found16
+ vl %v16,32(%r1,%r2)
+ vfaezbs %v16,%v16,%v17,8
+ jno .Lfast_loop_found32
+ vl %v16,48(%r1,%r2)
+ vfaezbs %v16,%v16,%v17,8
+ jno .Lfast_loop_found48
+
+ aghi %r1,64
+ j .Lfast_loop /* Loop if no element was unequal to accept
+ and not zero. */
+
+ /* Found unequal or zero element. */
+.Lfast_loop_found48:
+ aghi %r1,16
+.Lfast_loop_found32:
+ aghi %r1,16
+.Lfast_loop_found16:
+ aghi %r1,16
+.Lfast_loop_found:
+ vlgvb %r0,%v16,7 /* Load byte index of found element. */
+ algrk %r2,%r1,%r0 /* And add it to current len. */
+ br %r14
+
+
+ /*
+ Search s for accept in multiple vregs
+ -------------------------------------
+ */
+.Lslow:
+ /* Save registers. */
+ vlvgg %v30,%r6,0
+ vlvgp %v31,%r8,%r9
+ lghi %r1,0 /* current_len = 0. */
+
+ /* Accept in v17 without zero. */
+ vlr %v19,%v17 /* Save first acc-part for a fast reload. */
+ vzero %v20 /* Zero for preparing acc-vector. */
+
+ /* Align s to 16 byte. */
+ risbg %r0,%r2,60,128+63,0 /* Test if s is aligned and
+ %r0 = bits 60-63 'and' 15 */
+ je .Lslow_loop_str /* If s is aligned, loop aligned */
+ lghi %r4,15
+ slr %r4,%r0 /* Compute highest index to load (15-x). */
+ vll %v16,%r4,0(%r2) /* Load up to 16byte boundary (vll needs
+ highest index, left bytes are 0). */
+ ahi %r4,1 /* Work with loaded byte count. */
+ vzero %v21 /* Zero out global mask. */
+ lghi %r5,0 /* Set current len of accept-string to zero. */
+ vfenezb %v18,%v16,%v16 /* Find zero in current string-part. */
+ lghi %r8,0 /* There is no zero in first accept-part. */
+ vlgvb %r6,%v18,7 /* Load byte index of zero or 16
+ if there is no zero. */
+ clr %r4,%r6 /* cc==1 if loaded byte count < zero-index. */
+ locrl %r6,%r4 /* Load on cc==1. */
+ j .Lslow_loop_acc
+
+ /* Process s in 16byte aligned loop. */
+.Lslow_next_str:
+ vlr %v17,%v19 /* Load first part of accept (no zero). */
+ algfr %r1,%r4 /* Add loaded byte count to current len. */
+.Lslow_loop_str:
+ vl %v16,0(%r1,%r2) /* Load search-string. */
+ lghi %r4,16 /* Loaded byte count is 16. */
+ vzero %v21 /* Zero out global mask. */
+ lghi %r5,0 /* Set current len of accept-string to zero. */
+ vfenezb %v18,%v16,%v16 /* Find zero in current string-part. */
+ lghi %r8,0 /* There is no zero in first accept-part. */
+ vlgvb %r6,%v18,7 /* Load byte index of zero or 16 if no zero. */
+
+.Lslow_loop_acc:
+ vfaeb %v22,%v16,%v17,4 /* Create matching-mask (1 in mask ->
+ character matches any accepted character in
+ this accept-string-part) IN=0, RT=1. */
+ vo %v21,%v21,%v22 /* global-mask = global- | matching-mask. */
+ vfenezb %v18,%v21,%v21 /* Find first zero in global-mask. */
+ vlgvb %r0,%v18,7 /* Get first found zero-index
+ (= first mismatch). */
+ clrjl %r0,%r6,.Lslow_next_acc /* Mismatch-index < min(lbc,zero-index)
+ -> Process this string-part
+ with next acc-part. */
+ clrjhe %r0,%r4,.Lslow_next_str /* Found-index >= loaded byte count
+ -> All loaded bytes are matching
+ any accept-character
+ and are not zero. */
+ /* All bytes are matching any characters in accept-string
+ and search-string is fully processed (found-index == zero-index) */
+.Lslow_add_lbc_end:
+ algrk %r2,%r1,%r0 /* Add matching characters to current_len. */
+ /* Restore registers. */
+ vlgvg %r6,%v30,0
+ vlgvg %r8,%v31,0
+ vlgvg %r9,%v31,1
+ br %r14
+
+
+
+.Lslow_next_acc:
+ clijh %r8,0,.Lslow_add_lbc_end /* There was a zero in last acc-part
+ -> Add found index to current len
+ and end. */
+ vlbb %v17,16(%r5,%r3),6 /* Load next accept part. */
+ aghi %r5,16 /* Add current_len of accept-string. */
+ lcbb %r9,0(%r5,%r3),6 /* Get loaded byte count of accept-string. */
+ jo .Lslow_next_acc_onbb /* Jump away if accept-string is
+ on block-boundary. */
+.Lslow_next_acc_notonbb:
+ vistrbs %v17,%v17 /* Fill with zeros after first zero. */
+ jo .Lslow_loop_acc /* No zero found -> no preparation needed. */
+
+.Lslow_next_acc_prepare_zero:
+ /* Zero in accept-part: fill zeros with first-accept-character. */
+ vlgvb %r8,%v17,0 /* Load first element of acc-part. */
+ clije %r8,0,.Lslow_add_lbc_end /* End if zero is first character
+ in this part of accept-string. */
+ /* r8>0 -> zero found in this acc-part. */
+ vrepb %v18,%v17,0 /* Replicate first char accross all chars. */
+ vceqb %v22,%v20,%v17 /* Create a mask (v22) of null chars
+ by comparing with 0 (v20). */
+ vsel %v17,%v18,%v17,%v22 /* Replace null chars with first char. */
+ j .Lslow_loop_acc /* Accept part is prepared -> process. */
+
+.Lslow_next_acc_onbb:
+ vfenezb %v18,%v17,%v17 /* Find zero in loaded bytes of accept part. */
+ vlgvb %r8,%v18,7 /* Load byte index of zero. */
+ clrjl %r8,%r9,.Lslow_next_acc_notonbb /* Found a zero in loaded bytes
+ -> Prepare vr. */
+ vl %v17,0(%r5,%r3) /* Load over boundary ... */
+ lghi %r8,0 /* r8=0 -> no zero in this part of acc,
+ Check for zero is in jump-target. */
+ j .Lslow_next_acc_notonbb /* ... and search for zero in
+ fully loaded vreg again. */
+END(__strspn_vx)
+#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
diff --git a/sysdeps/s390/multiarch/strspn.c b/sysdeps/s390/multiarch/strspn.c
new file mode 100644
index 0000000..204da69
--- /dev/null
+++ b/sysdeps/s390/multiarch/strspn.c
@@ -0,0 +1,27 @@
+/* Multiple versions of strspn.
+ Copyright (C) 2015 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 && IS_IN (libc)
+# include <string.h>
+# include <ifunc-resolve.h>
+
+s390_vx_libc_ifunc2 (__strspn, strspn)
+
+#else
+# include <string/strspn.c>
+#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
diff --git a/sysdeps/s390/multiarch/wcsspn-c.c b/sysdeps/s390/multiarch/wcsspn-c.c
new file mode 100644
index 0000000..5c54209
--- /dev/null
+++ b/sysdeps/s390/multiarch/wcsspn-c.c
@@ -0,0 +1,31 @@
+/* Default wcsspn implementation for S/390.
+ Copyright (C) 2015 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 && IS_IN (libc)
+# define WCSSPN __wcsspn_c
+
+# include <wchar.h>
+extern __typeof (wcsspn) __wcsspn_c;
+# ifdef SHARED
+# undef libc_hidden_def
+# define libc_hidden_def(name) \
+ __hidden_ver1 (__wcsspn_c, __GI_wcsspn, __wcsspn_c);
+# endif /* SHARED */
+
+# include <wcsmbs/wcsspn.c>
+#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
diff --git a/sysdeps/s390/multiarch/wcsspn-vx.S b/sysdeps/s390/multiarch/wcsspn-vx.S
new file mode 100644
index 0000000..1a87d38
--- /dev/null
+++ b/sysdeps/s390/multiarch/wcsspn-vx.S
@@ -0,0 +1,270 @@
+/* Vector optimized 32/64 bit S/390 version of wcsspn.
+ Copyright (C) 2015 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 && IS_IN (libc)
+
+# include "sysdep.h"
+# include "asm-syntax.h"
+
+ .text
+
+/* size_t wcsspn (const wchar_t *s, const wchar_t * accept)
+ The wcsspn() function calculates the length of the initial segment
+ of s which consists entirely of characters in accept.
+
+ This method checks the length of accept string. If it fits entirely
+ in one vector register, a fast algorithm is used, which does not need
+ to check multiple parts of accept-string. Otherwise a slower full
+ check of accept-string is used.
+
+ register overview:
+ r3: pointer to start of accept-string
+ r2: pointer to start of search-string
+ r4: loaded byte count of vl search-string
+ r0: found byte index
+ r1: current return len of s
+ v16: search-string
+ v17: accept-string
+ v18: temp-vreg
+
+ ONLY FOR SLOW:
+ v19: first accept-string
+ v20: zero for preparing acc-vector
+ v21: global mask; 1 indicates a match between
+ search-string-vreg and any accept-character
+ v22: current mask; 1 indicates a match between
+ search-string-vreg and any accept-character in current acc-vreg
+ v30, v31: for re-/storing registers r6, r8, r9
+ r5: current len of accept-string
+ r6: zero-index in search-string or 16 if no zero
+ or min(zero-index, loaded byte count)
+ r8: >0, if former accept-string-part contains a zero,
+ otherwise =0;
+ r9: loaded byte count of vlbb accept-string
+*/
+ENTRY(__wcsspn_vx)
+ .machine "z13"
+ .machinemode "zarch_nohighgprs"
+
+ tmll %r2,3 /* Test if s is 4-byte aligned? */
+ jne .Lfallback /* And use common-code variant if not. */
+
+ /*
+ Check if accept-string fits in one vreg:
+ ----------------------------------------
+ */
+ vlbb %v17,0(%r3),6 /* Load accept. */
+ lcbb %r4,0(%r3),6
+ jo .Lcheck_onbb /* Special case if accept lays
+ on block-boundary. */
+.Lcheck_notonbb:
+ vistrfs %v17,%v17 /* Fill with zeros after first zero. */
+ je .Lfast /* Zero found -> accept fits in one vreg. */
+ j .Lslow /* No zero -> accept exceeds one vreg. */
+
+.Lcheck_onbb:
+ /* Accept lays on block-boundary. */
+ nill %r4,65532 /* Recognize only fully loaded characters. */
+ je .Lcheck_onbb2 /* Reload vr if no full wchar_t. */
+ vfenezf %v18,%v17,%v17 /* Search zero in loaded accept bytes. */
+ vlgvb %r0,%v18,7 /* Get index of zero or 16 if not found. */
+ clrjl %r0,%r4,.Lcheck_notonbb /* Zero index < loaded bytes count ->
+ Accept fits in one vreg;
+ Fill with zeros and proceed
+ with FAST. */
+.Lcheck_onbb2:
+ vl %v17,0(%r3) /* Load accept, which exceeds loaded bytes. */
+ j .Lcheck_notonbb /* Check if accept fits in one vreg. */
+
+
+ /*
+ Search s for accept in one vreg
+ -------------------------------
+ */
+.Lfast:
+ /* Complete accept-string in v17 and remaining bytes are zero. */
+
+ vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
+ lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
+
+ vfaezfs %v16,%v16,%v17,8 /* Find first element in v16
+ unequal to any in v17
+ or first zero element. */
+
+ vlgvb %r0,%v16,7 /* Load byte index of found element. */
+ /* If found index is within loaded bytes (%r0 < %r1),
+ return with found element index (=equal count). */
+ clr %r0,%r1
+ srlg %r0,%r0,2 /* Convert byte-count to character-count. */
+ locgrl %r2,%r0
+ blr %r14
+
+ /* Align s to 16 byte. */
+ risbgn %r4,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
+ lghi %r1,16 /* current_len = 16. */
+ slr %r1,%r4 /* Compute bytes to 16bytes boundary. */
+
+.Lfast_loop:
+ vl %v16,0(%r1,%r2) /* Load search-string. */
+ vfaezfs %v16,%v16,%v17,8 /* Find first element in v16
+ unequal to any in v17
+ or first zero element. */
+ jno .Lfast_loop_found
+ vl %v16,16(%r1,%r2)
+ vfaezfs %v16,%v16,%v17,8
+ jno .Lfast_loop_found16
+ vl %v16,32(%r1,%r2)
+ vfaezfs %v16,%v16,%v17,8
+ jno .Lfast_loop_found32
+ vl %v16,48(%r1,%r2)
+ vfaezfs %v16,%v16,%v17,8
+ jno .Lfast_loop_found48
+
+ aghi %r1,64
+ j .Lfast_loop /* Loop if no element was unequal to accept
+ and not zero. */
+
+ /* Found unequal or zero element. */
+.Lfast_loop_found48:
+ aghi %r1,16
+.Lfast_loop_found32:
+ aghi %r1,16
+.Lfast_loop_found16:
+ aghi %r1,16
+.Lfast_loop_found:
+ vlgvb %r0,%v16,7 /* Load byte index of found element. */
+ algrk %r2,%r1,%r0 /* And add it to current len. */
+ srlg %r2,%r2,2 /* Convert byte-count to character-count. */
+ br %r14
+
+
+ /*
+ Search s for accept in multiple vregs
+ -------------------------------------
+ */
+.Lslow:
+ /* Save registers. */
+ vlvgg %v30,%r6,0
+ vlvgp %v31,%r8,%r9
+ lghi %r1,0 /* Zero out current len. */
+
+ /* accept in v17 without zero. */
+ vlr %v19,%v17 /* Save first acc-part for a fast reload. */
+ vzero %v20 /* Zero for preparing acc-vector. */
+
+ /* Align s to 16 byte. */
+ risbg %r0,%r2,60,128+63,0 /* Test if s is aligned and
+ %r0 = bits 60-63 'and' 15. */
+ je .Lslow_loop_str /* If s is aligned, loop aligned */
+ lghi %r4,15
+ slr %r4,%r0 /* Compute highest index to load (15-x). */
+ vll %v16,%r4,0(%r2) /* Load up to 16byte boundary (vll needs
+ highest index, remaining bytes are 0). */
+ aghi %r4,1 /* Work with loaded byte count. */
+ vzero %v21 /* Zero out global mask. */
+ lghi %r5,0 /* Set current len of accept-string to zero. */
+ vfenezf %v18,%v16,%v16 /* Find zero in current string-part. */
+ lghi %r8,0 /* There is no zero in first accept-part. */
+ vlgvb %r6,%v18,7 /* Load byte index of zero or 16
+ if there is no zero. */
+ clr %r4,%r6 /* cc==1 if loaded byte count < zero-index. */
+ locrl %r6,%r4 /* Load on cc==1. */
+ j .Lslow_loop_acc
+
+ /* Process s in 16byte aligned loop. */
+.Lslow_next_str:
+ vlr %v17,%v19 /* Load first part of accept (no zero). */
+ algfr %r1,%r4 /* Add loaded byte count to current len. */
+.Lslow_loop_str:
+ vl %v16,0(%r1,%r2) /* Load search-string. */
+ lghi %r4,16 /* Loaded byte count is 16. */
+ vzero %v21 /* Zero out global mask. */
+ lghi %r5,0 /* Set current len of accept-string to zero. */
+ vfenezf %v18,%v16,%v16 /* Find zero in current string-part. */
+ lghi %r8,0 /* There is no zero in first accept-part. */
+ vlgvb %r6,%v18,7 /* Load byte index of zero or 16 if no zero. */
+
+.Lslow_loop_acc:
+ vfaef %v22,%v16,%v17,4 /* Create matching-mask (1 in mask ->
+ character matches any accepted character in
+ this accept-string-part) IN=0, RT=1. */
+ vo %v21,%v21,%v22 /* global-mask = global- | matching-mask. */
+ vfenezf %v18,%v21,%v21 /* Find first zero in global-mask. */
+ vlgvb %r0,%v18,7 /* Get first found zero-index
+ (= first mismatch). */
+ clrjl %r0,%r6,.Lslow_next_acc /* Mismatch-index < min(lbc,zero-index)
+ -> Process this string-part
+ with next acc-part. */
+ clrjhe %r0,%r4,.Lslow_next_str /* Found-index >= loaded byte count
+ -> All loaded bytes are matching
+ any accept-character
+ and are not zero. */
+ /* All bytes are matching any characters in accept-string
+ and search-string is fully processed (found-index == zero-index). */
+.Lslow_add_lbc_end:
+ algrk %r2,%r1,%r0 /* Add matching characters to current len. */
+ srlg %r2,%r2,2 /* Convert byte-count to character-count. */
+ /* Restore registers. */
+ vlgvg %r6,%v30,0
+ vlgvg %r8,%v31,0
+ vlgvg %r9,%v31,1
+ br %r14
+
+.Lslow_next_acc:
+ clijh %r8,0,.Lslow_add_lbc_end /* There was a zero in last acc-part
+ -> Add found index to current len
+ and end. */
+ vlbb %v17,16(%r5,%r3),6 /* Load next accept part. */
+ aghi %r5,16 /* Increment current len of accept-string. */
+ lcbb %r9,0(%r5,%r3),6 /* Get loaded byte count of accept-string. */
+ jo .Lslow_next_acc_onbb /* Jump away if accept-string is
+ on block-boundary. */
+.Lslow_next_acc_notonbb:
+ vistrfs %v17,%v17 /* Fill with zeros after first zero. */
+ jo .Lslow_loop_acc /* No zero found -> no preparation needed. */
+
+.Lslow_next_acc_prepare_zero:
+ /* Zero in accept-part: fill zeros with first-accept-character. */
+ vlgvf %r8,%v17,0 /* Load first element of acc-part. */
+ clije %r8,0,.Lslow_add_lbc_end /* End if zero is first character
+ in this part of accept-string. */
+ /* r8>0 -> zero found in this acc-part. */
+ vrepf %v18,%v17,0 /* Replicate first char accross all chars. */
+ vceqf %v22,%v20,%v17 /* Create a mask (v22) of null chars
+ by comparing with 0 (v20). */
+ vsel %v17,%v18,%v17,%v22 /* Replace null chars with first char. */
+ j .Lslow_loop_acc /* Accept part is prepared -> process. */
+
+.Lslow_next_acc_onbb:
+ nill %r9,65532 /* Recognize only fully loaded characters. */
+ je .Lslow_next_acc_onbb2 /* Reload vr, if we loaded no full
+ wchar_t. */
+ vfenezf %v18,%v17,%v17 /* Find zero in loaded bytes of accept part. */
+ vlgvb %r8,%v18,7 /* Load byte index of zero. */
+ clrjl %r8,%r9,.Lslow_next_acc_notonbb /* Found a zero in loaded bytes
+ -> Prepare vreg. */
+.Lslow_next_acc_onbb2:
+ vl %v17,0(%r5,%r3) /* Load over boundary ... */
+ lghi %r8,0 /* r8=0 -> no zero in this part of acc,
+ check for zero is in jump-target. */
+ j .Lslow_next_acc_notonbb /* ... and search for zero in
+ fully loaded vreg again. */
+.Lfallback:
+ jg __wcsspn_c
+END(__wcsspn_vx)
+#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
diff --git a/sysdeps/s390/multiarch/wcsspn.c b/sysdeps/s390/multiarch/wcsspn.c
new file mode 100644
index 0000000..8dbd202
--- /dev/null
+++ b/sysdeps/s390/multiarch/wcsspn.c
@@ -0,0 +1,27 @@
+/* Multiple versions of wcsspn.
+ Copyright (C) 2015 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 && IS_IN (libc)
+# include <wchar.h>
+# include <ifunc-resolve.h>
+
+s390_vx_libc_ifunc2 (__wcsspn, wcsspn)
+
+#else
+# include <wcsmbs/wcsspn.c>
+#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */