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From 0b3ff29b298c488ab995d4224da2cc36fb56ddce Mon Sep 17 00:00:00 2001
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From: Stefan Liebler <stli@linux.vnet.ibm.com>
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Date: Thu, 8 Oct 2015 11:25:00 +0200
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Subject: [PATCH 20/30] S390: Optimize strchr and wcschr.
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upstream-commit-id: cf150d45a97c6bb8410d6d3acf6e1560e8fe96cc
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https://www.sourceware.org/ml/libc-alpha/2015-07/msg00094.html
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This patch provides optimized versions of strchr and wcschr with the z13
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vector instructions.
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ChangeLog:
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* sysdeps/s390/multiarch/strchr-c.c: New File.
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* sysdeps/s390/multiarch/strchr-vx.S: Likewise.
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* sysdeps/s390/multiarch/strchr.c: Likewise.
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* sysdeps/s390/multiarch/wcschr-c.c: Likewise.
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* sysdeps/s390/multiarch/wcschr-vx.S: Likewise.
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* sysdeps/s390/multiarch/wcschr.c: Likewise.
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* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strchr and
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wcschr functions.
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* sysdeps/s390/multiarch/ifunc-impl-list.c
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(__libc_ifunc_impl_list): Add ifunc test for strchr, wcschr.
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* string/strchr.c (STRCHR): Define and use macro.
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* benchtests/bench-wcschr.c: New File.
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* benchtests/Makefile (wcsmbs-bench): Add wcschr.
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---
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benchtests/Makefile | 2 +-
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benchtests/bench-wcschr.c | 20 ++++++
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string/strchr.c | 8 ++-
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sysdeps/s390/multiarch/Makefile | 6 +-
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sysdeps/s390/multiarch/ifunc-impl-list.c | 3 +
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sysdeps/s390/multiarch/strchr-c.c | 29 +++++++++
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sysdeps/s390/multiarch/strchr-vx.S | 100 ++++++++++++++++++++++++++++++
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sysdeps/s390/multiarch/strchr.c | 28 +++++++++
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sysdeps/s390/multiarch/wcschr-c.c | 31 ++++++++++
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sysdeps/s390/multiarch/wcschr-vx.S | 103 +++++++++++++++++++++++++++++++
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sysdeps/s390/multiarch/wcschr.c | 27 ++++++++
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11 files changed, 351 insertions(+), 6 deletions(-)
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create mode 100644 benchtests/bench-wcschr.c
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create mode 100644 sysdeps/s390/multiarch/strchr-c.c
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create mode 100644 sysdeps/s390/multiarch/strchr-vx.S
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create mode 100644 sysdeps/s390/multiarch/strchr.c
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create mode 100644 sysdeps/s390/multiarch/wcschr-c.c
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create mode 100644 sysdeps/s390/multiarch/wcschr-vx.S
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create mode 100644 sysdeps/s390/multiarch/wcschr.c
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diff --git a/benchtests/Makefile b/benchtests/Makefile
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index f6342da..bcb0288 100644
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--- a/benchtests/Makefile
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+++ b/benchtests/Makefile
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@@ -39,7 +39,7 @@ string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
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strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
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strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok
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wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
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- wcsncmp wcsncmp
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+ wcsncmp wcsncmp wcschr
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string-bench-all := $(string-bench) ${wcsmbs-bench}
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stdlib-bench := strtod
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diff --git a/benchtests/bench-wcschr.c b/benchtests/bench-wcschr.c
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new file mode 100644
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index 0000000..4287724
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--- /dev/null
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+++ b/benchtests/bench-wcschr.c
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@@ -0,0 +1,20 @@
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+/* Measure wcschr functions.
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+ Copyright (C) 2015 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#define WIDE 1
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+#include "bench-strchr.c"
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diff --git a/string/strchr.c b/string/strchr.c
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index 9d18b7e..69a9cd9 100644
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--- a/string/strchr.c
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+++ b/string/strchr.c
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@@ -27,11 +27,13 @@
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#undef strchr
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+#ifndef STRCHR
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+# define STRCHR strchr
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+#endif
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+
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/* Find the first occurrence of C in S. */
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char *
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-strchr (s, c_in)
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- const char *s;
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- int c_in;
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+STRCHR (const char *s, int c_in)
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{
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const unsigned char *char_ptr;
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const unsigned long int *longword_ptr;
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diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
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index d77bee5..1a3673b 100644
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--- a/sysdeps/s390/multiarch/Makefile
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+++ b/sysdeps/s390/multiarch/Makefile
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@@ -8,7 +8,8 @@ sysdep_routines += strlen strlen-vx strlen-c \
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strcat strcat-vx strcat-c \
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strncat strncat-vx strncat-c \
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strcmp strcmp-vx \
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- strncmp strncmp-vx strncmp-c
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+ strncmp strncmp-vx strncmp-c \
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+ strchr strchr-vx strchr-c
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endif
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ifeq ($(subdir),wcsmbs)
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@@ -21,5 +22,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
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wcscat wcscat-vx wcscat-c \
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wcsncat wcsncat-vx wcsncat-c \
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wcscmp wcscmp-vx wcscmp-c \
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- wcsncmp wcsncmp-vx wcsncmp-c
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+ wcsncmp wcsncmp-vx wcsncmp-c \
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+ wcschr wcschr-vx wcschr-c
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endif
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diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
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index 5bfc493..b0782ff 100644
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--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
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+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
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@@ -109,6 +109,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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IFUNC_VX_IMPL (strncmp);
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IFUNC_VX_IMPL (wcsncmp);
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+ IFUNC_VX_IMPL (strchr);
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+ IFUNC_VX_IMPL (wcschr);
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+
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#endif /* HAVE_S390_VX_ASM_SUPPORT */
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return i;
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diff --git a/sysdeps/s390/multiarch/strchr-c.c b/sysdeps/s390/multiarch/strchr-c.c
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new file mode 100644
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index 0000000..4384e6b
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--- /dev/null
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+++ b/sysdeps/s390/multiarch/strchr-c.c
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@@ -0,0 +1,29 @@
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+/* Default strchr implementation for S/390.
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+ Copyright (C) 2015 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#if defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc
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+# define STRCHR __strchr_c
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+# undef weak_alias
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+# ifdef SHARED
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+# undef libc_hidden_builtin_def
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+# define libc_hidden_builtin_def(name) \
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+ __hidden_ver1 (__strchr_c, __GI_strchr, __strchr_c);
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+# endif /* SHARED */
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+
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+# include <string/strchr.c>
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+#endif /* HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc */
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diff --git a/sysdeps/s390/multiarch/strchr-vx.S b/sysdeps/s390/multiarch/strchr-vx.S
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new file mode 100644
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index 0000000..26180df
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--- /dev/null
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+++ b/sysdeps/s390/multiarch/strchr-vx.S
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@@ -0,0 +1,100 @@
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+/* Vector optimized 32/64 bit S/390 version of strchr.
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+ Copyright (C) 2015 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#if defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc
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+
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+# include "sysdep.h"
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+# include "asm-syntax.h"
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+
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+ .text
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+
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+/* char *strchr (const char *s, int c)
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+ Locate character in string.
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+
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+ Register usage:
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+ -r1=tmp
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+ -r2=s
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+ -r3=c
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+ -r4=tmp
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+ -r5=current_len
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+ -v16=part of s
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+ -v17=index of unequal
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+ -v18=replicated c
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+*/
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+ENTRY(__strchr_vx)
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+ .machine "z13"
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+ .machinemode "zarch_nohighgprs"
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+
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+ vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
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+ lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
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+
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+ lghi %r5,0 /* current_len = 0. */
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+
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+ vlvgb %v18,%r3,0 /* Generate vector which elements are all c.
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+ If c > 255, c will be truncated. */
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+ vrepb %v18,%v18,0
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+
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+ vfeezbs %v16,%v16,%v18 /* Find element equal with zero search. */
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+ vlgvb %r4,%v16,7 /* Load byte index of character or zero. */
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+ clrjl %r4,%r1,.Lfound /* Return if c/zero is in loaded bytes. */
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+
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+ /* Align s to 16 byte. */
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+ risbgn %r4,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
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+ lghi %r5,16 /* current_len = 16. */
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+ slr %r5,%r4 /* Compute bytes to 16bytes boundary. */
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+
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+ /* Find c/zero in 16 byte aligned loop */
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+.Lloop:
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+ vl %v16,0(%r5,%r2) /* Load s. */
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+ vfeezbs %v16,%v16,%v18 /* Find element equal with zero search. */
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+ jno .Lfound /* Found c/zero (cc=0|1|2). */
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+ vl %v16,16(%r5,%r2)
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+ vfeezbs %v16,%v16,%v18
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+ jno .Lfound16
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+ vl %v16,32(%r5,%r2)
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+ vfeezbs %v16,%v16,%v18
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+ jno .Lfound32
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+ vl %v16,48(%r5,%r2)
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+ vfeezbs %v16,%v16,%v18
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+ jno .Lfound48
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+
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+ aghi %r5,64
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+ j .Lloop /* No character and no zero -> loop. */
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+
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+.Lfound48:
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+ la %r5,16(%r5) /* Use la since aghi would clobber cc. */
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+.Lfound32:
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+ la %r5,16(%r5)
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+.Lfound16:
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+ la %r5,16(%r5)
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+.Lfound:
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+ je .Lzero /* Found zero, but no c before that zero. */
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+
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+.Lcharacter:
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bca718 |
+ vlgvb %r4,%v16,7 /* Load byte index of character. */
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+ algr %r5,%r4
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bca718 |
+ la %r2,0(%r5,%r2) /* Return pointer to character. */
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+ br %r14
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+
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+.Lzero:
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bca718 |
+ llgcr %r3,%r3 /* char c_char = (char) c. */
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bca718 |
+ clije %r3,0,.Lcharacter /* Found zero and c is zero. */
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|
bca718 |
+ lghi %r2,0 /* Return null if character not found. */
|
|
|
bca718 |
+ br %r14
|
|
|
bca718 |
+END(__strchr_vx)
|
|
|
bca718 |
+#endif /* HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc */
|
|
|
bca718 |
diff --git a/sysdeps/s390/multiarch/strchr.c b/sysdeps/s390/multiarch/strchr.c
|
|
|
bca718 |
new file mode 100644
|
|
|
bca718 |
index 0000000..e2a310f
|
|
|
bca718 |
--- /dev/null
|
|
|
bca718 |
+++ b/sysdeps/s390/multiarch/strchr.c
|
|
|
bca718 |
@@ -0,0 +1,28 @@
|
|
|
bca718 |
+/* Multiple versions of strchr.
|
|
|
bca718 |
+ Copyright (C) 2015 Free Software Foundation, Inc.
|
|
|
bca718 |
+ This file is part of the GNU C Library.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
bca718 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
bca718 |
+ License as published by the Free Software Foundation; either
|
|
|
bca718 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
bca718 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
bca718 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
bca718 |
+ Lesser General Public License for more details.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
bca718 |
+ License along with the GNU C Library; if not, see
|
|
|
bca718 |
+ <http://www.gnu.org/licenses/>. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+#if defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc
|
|
|
bca718 |
+# include <string.h>
|
|
|
bca718 |
+# include <ifunc-resolve.h>
|
|
|
bca718 |
+
|
|
|
bca718 |
+s390_vx_libc_ifunc2 (__strchr, strchr)
|
|
|
bca718 |
+weak_alias (strchr, index)
|
|
|
bca718 |
+
|
|
|
bca718 |
+#else
|
|
|
bca718 |
+# include <string/strchr.c>
|
|
|
bca718 |
+#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc) */
|
|
|
bca718 |
diff --git a/sysdeps/s390/multiarch/wcschr-c.c b/sysdeps/s390/multiarch/wcschr-c.c
|
|
|
bca718 |
new file mode 100644
|
|
|
bca718 |
index 0000000..ad7415e
|
|
|
bca718 |
--- /dev/null
|
|
|
bca718 |
+++ b/sysdeps/s390/multiarch/wcschr-c.c
|
|
|
bca718 |
@@ -0,0 +1,31 @@
|
|
|
bca718 |
+/* Default wcschr implementation for S/390.
|
|
|
bca718 |
+ Copyright (C) 2015 Free Software Foundation, Inc.
|
|
|
bca718 |
+ This file is part of the GNU C Library.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
bca718 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
bca718 |
+ License as published by the Free Software Foundation; either
|
|
|
bca718 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
bca718 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
bca718 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
bca718 |
+ Lesser General Public License for more details.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
bca718 |
+ License along with the GNU C Library; if not, see
|
|
|
bca718 |
+ <http://www.gnu.org/licenses/>. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+#if defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc
|
|
|
bca718 |
+# define WCSCHR __wcschr_c
|
|
|
bca718 |
+
|
|
|
bca718 |
+# include <wchar.h>
|
|
|
bca718 |
+extern __typeof (wcschr) __wcschr_c;
|
|
|
bca718 |
+# ifdef SHARED
|
|
|
bca718 |
+# undef libc_hidden_def
|
|
|
bca718 |
+# define libc_hidden_def(name) \
|
|
|
bca718 |
+ __hidden_ver1 (__wcschr_c, __GI_wcschr, __wcschr_c);
|
|
|
bca718 |
+# endif /* SHARED */
|
|
|
bca718 |
+
|
|
|
bca718 |
+# include <wcsmbs/wcschr.c>
|
|
|
bca718 |
+#endif /* HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc */
|
|
|
bca718 |
diff --git a/sysdeps/s390/multiarch/wcschr-vx.S b/sysdeps/s390/multiarch/wcschr-vx.S
|
|
|
bca718 |
new file mode 100644
|
|
|
bca718 |
index 0000000..c1b3f6b
|
|
|
bca718 |
--- /dev/null
|
|
|
bca718 |
+++ b/sysdeps/s390/multiarch/wcschr-vx.S
|
|
|
bca718 |
@@ -0,0 +1,103 @@
|
|
|
bca718 |
+/* Vector optimized 32/64 bit S/390 version of wcschr.
|
|
|
bca718 |
+ Copyright (C) 2015 Free Software Foundation, Inc.
|
|
|
bca718 |
+ This file is part of the GNU C Library.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
bca718 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
bca718 |
+ License as published by the Free Software Foundation; either
|
|
|
bca718 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
bca718 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
bca718 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
bca718 |
+ Lesser General Public License for more details.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
bca718 |
+ License along with the GNU C Library; if not, see
|
|
|
bca718 |
+ <http://www.gnu.org/licenses/>. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+#if defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc
|
|
|
bca718 |
+
|
|
|
bca718 |
+# include "sysdep.h"
|
|
|
bca718 |
+# include "asm-syntax.h"
|
|
|
bca718 |
+
|
|
|
bca718 |
+ .text
|
|
|
bca718 |
+
|
|
|
bca718 |
+/* wchar_t *wcschr (const wchar_t *s, wchar_t c)
|
|
|
bca718 |
+ Locate character in string.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ Register usage:
|
|
|
bca718 |
+ -r1=tmp
|
|
|
bca718 |
+ -r2=s
|
|
|
bca718 |
+ -r3=c
|
|
|
bca718 |
+ -r4=tmp
|
|
|
bca718 |
+ -r5=current_len
|
|
|
bca718 |
+ -v16=part of s
|
|
|
bca718 |
+ -v17=index of unequal
|
|
|
bca718 |
+ -v18=replicated c
|
|
|
bca718 |
+*/
|
|
|
bca718 |
+ENTRY(__wcschr_vx)
|
|
|
bca718 |
+ .machine "z13"
|
|
|
bca718 |
+ .machinemode "zarch_nohighgprs"
|
|
|
bca718 |
+
|
|
|
bca718 |
+ vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
|
|
|
bca718 |
+ lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+ tmll %r2,3 /* Test if s is 4-byte aligned? */
|
|
|
bca718 |
+ jne .Lfallback /* And use common-code variant if not. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+ lghi %r5,0 /* current_len = 0. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+ vlvgf %v18,%r3,0 /* Generate vector which elements are all c. */
|
|
|
bca718 |
+ vrepf %v18,%v18,0
|
|
|
bca718 |
+
|
|
|
bca718 |
+ vfeezfs %v16,%v16,%v18 /* Find element equal with zero search. */
|
|
|
bca718 |
+ vlgvb %r4,%v16,7 /* Load byte index of character or zero. */
|
|
|
bca718 |
+ clrjl %r4,%r1,.Lfound /* Return if c/zero is in loaded bytes. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+ /* Align s to 16 byte. */
|
|
|
bca718 |
+ risbgn %r4,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
|
|
|
bca718 |
+ lghi %r5,16 /* current_len = 16. */
|
|
|
bca718 |
+ slr %r5,%r4 /* Compute bytes to 16bytes boundary. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+ /* Find c/zero in 16byte aligned loop */
|
|
|
bca718 |
+.Lloop:
|
|
|
bca718 |
+ vl %v16,0(%r5,%r2) /* Load s. */
|
|
|
bca718 |
+ vfeezfs %v16,%v16,%v18 /* Find element equal with zero search. */
|
|
|
bca718 |
+ jno .Lfound /* Found c/zero (cc=0|1|2). */
|
|
|
bca718 |
+ vl %v16,16(%r5,%r2)
|
|
|
bca718 |
+ vfeezfs %v16,%v16,%v18
|
|
|
bca718 |
+ jno .Lfound16
|
|
|
bca718 |
+ vl %v16,32(%r5,%r2)
|
|
|
bca718 |
+ vfeezfs %v16,%v16,%v18
|
|
|
bca718 |
+ jno .Lfound32
|
|
|
bca718 |
+ vl %v16,48(%r5,%r2)
|
|
|
bca718 |
+ vfeezfs %v16,%v16,%v18
|
|
|
bca718 |
+ jno .Lfound48
|
|
|
bca718 |
+
|
|
|
bca718 |
+ aghi %r5,64
|
|
|
bca718 |
+ j .Lloop /* No character and no zero -> loop. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+.Lfound48:
|
|
|
bca718 |
+ la %r5,16(%r5) /* Use la since aghi would clobber cc. */
|
|
|
bca718 |
+.Lfound32:
|
|
|
bca718 |
+ la %r5,16(%r5)
|
|
|
bca718 |
+.Lfound16:
|
|
|
bca718 |
+ la %r5,16(%r5)
|
|
|
bca718 |
+.Lfound:
|
|
|
bca718 |
+ je .Lzero /* Found zero, but no c before that zero. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+.Lcharacter:
|
|
|
bca718 |
+ vlgvb %r4,%v16,7 /* Load byte index of character. */
|
|
|
bca718 |
+ algr %r5,%r4
|
|
|
bca718 |
+ la %r2,0(%r5,%r2) /* Return pointer to character. */
|
|
|
bca718 |
+ br %r14
|
|
|
bca718 |
+
|
|
|
bca718 |
+.Lzero:
|
|
|
bca718 |
+ clije %r3,0,.Lcharacter /* Found zero and c is zero. */
|
|
|
bca718 |
+ lghi %r2,0 /* Return null if character not found. */
|
|
|
bca718 |
+ br %r14
|
|
|
bca718 |
+.Lfallback:
|
|
|
bca718 |
+ jg __wcschr_c
|
|
|
bca718 |
+END(__wcschr_vx)
|
|
|
bca718 |
+#endif /* HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc */
|
|
|
bca718 |
diff --git a/sysdeps/s390/multiarch/wcschr.c b/sysdeps/s390/multiarch/wcschr.c
|
|
|
bca718 |
new file mode 100644
|
|
|
bca718 |
index 0000000..9c8c097
|
|
|
bca718 |
--- /dev/null
|
|
|
bca718 |
+++ b/sysdeps/s390/multiarch/wcschr.c
|
|
|
bca718 |
@@ -0,0 +1,27 @@
|
|
|
bca718 |
+/* Multiple versions of wcschr.
|
|
|
bca718 |
+ Copyright (C) 2015 Free Software Foundation, Inc.
|
|
|
bca718 |
+ This file is part of the GNU C Library.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
bca718 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
bca718 |
+ License as published by the Free Software Foundation; either
|
|
|
bca718 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
bca718 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
bca718 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
bca718 |
+ Lesser General Public License for more details.
|
|
|
bca718 |
+
|
|
|
bca718 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
bca718 |
+ License along with the GNU C Library; if not, see
|
|
|
bca718 |
+ <http://www.gnu.org/licenses/>. */
|
|
|
bca718 |
+
|
|
|
bca718 |
+#if defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc
|
|
|
bca718 |
+# include <wchar.h>
|
|
|
bca718 |
+# include <ifunc-resolve.h>
|
|
|
bca718 |
+
|
|
|
bca718 |
+s390_vx_libc_ifunc2 (__wcschr, wcschr)
|
|
|
bca718 |
+
|
|
|
bca718 |
+#else
|
|
|
bca718 |
+# include <wcsmbs/wcschr.c>
|
|
|
bca718 |
+#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && !defined NOT_IN_libc) */
|
|
|
bca718 |
--
|
|
|
bca718 |
2.3.0
|
|
|
bca718 |
|