+2009-08-03 H.J. Lu <hongjiu.lu@intel.com>
+
+ * sysdeps/i386/i686/multiarch/Makefile [subdir=string]
+ (sysdep_routines): Add strcspn-c, strpbrk-c, strspn-c, strstr-c, and
+ strcasestr-c.
+ (CFLAGS-strcspn-c.c): Define.
+ (CFLAGS-strpbrk-c.c): Define.
+ (CFLAGS-strspn-c.c): Define.
+ (CFLAGS-strstr.c): Define.
+ (CFLAGS-strcasestr.c): Define.
+ * sysdeps/i386/i686/multiarch/strcspn-c.c: New file.
+ * sysdeps/i386/i686/multiarch/strcspn.S: New file.
+ * sysdeps/i386/i686/multiarch/strpbrk-c.c: New file.
+ * sysdeps/i386/i686/multiarch/strpbrk.S: New file.
+ * sysdeps/i386/i686/multiarch/strspn-c.c: New file.
+ * sysdeps/i386/i686/multiarch/strspn.S: New file.
+ * sysdeps/i386/i686/multiarch/strstr-c.c: New file.
+ * sysdeps/i386/i686/multiarch/strstr.c: New file.
+ * sysdeps/i386/i686/multiarch/strcasestr-c.c: New file.
+ * sysdeps/i386/i686/multiarch/strcasestr.c: New file.
+ * sysdeps/x86_64/multiarch/strcspn-c.c (STRCSPN_SSE42): Use
+ -16L instead of 0xfffffffffffffff0L.
+ * sysdeps/x86_64/multiarch/strspn-c.c (__strspn_sse42): Likewise.
+
2009-08-02 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/configure.in: Add test for <cpuid.h>.
aux += init-arch
gen-as-const-headers += ifunc-defines.sym
endif
+
+ifeq ($(subdir),string)
+ifeq (yes,$(config-cflags-sse4))
+sysdep_routines += strcspn-c strpbrk-c strspn-c strstr-c strcasestr-c
+CFLAGS-strcspn-c.c += -msse4
+CFLAGS-strpbrk-c.c += -msse4
+CFLAGS-strspn-c.c += -msse4
+CFLAGS-strstr.c += -msse4
+CFLAGS-strcasestr.c += -msse4
+endif
+endif
--- /dev/null
+#define __strcasestr_sse2 __strcasestr_ia32
+#include <sysdeps/x86_64/multiarch/strcasestr-c.c>
--- /dev/null
+#include <sysdeps/x86_64/multiarch/strcasestr.c>
--- /dev/null
+#define __strcspn_sse2 __strcspn_ia32
+#include <sysdeps/x86_64/multiarch/strcspn-c.c>
--- /dev/null
+/* Multiple versions of strcspn
+ Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Intel Corporation.
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <config.h>
+
+#ifdef HAVE_SSE4_SUPPORT
+
+#include <sysdep.h>
+#include <ifunc-defines.h>
+
+#ifdef USE_AS_STRPBRK
+#define STRCSPN_SSE42 __strpbrk_sse42
+#define STRCSPN_IA32 __strpbrk_ia32
+#define __GI_STRCSPN __GI_strpbrk
+#else
+#ifndef STRCSPN
+#define STRCSPN strcspn
+#define STRCSPN_SSE42 __strcspn_sse42
+#define STRCSPN_IA32 __strcspn_ia32
+#define __GI_STRCSPN __GI_strcspn
+#endif
+#endif
+
+/* Define multiple versions only for the definition in libc. Don't
+ define multiple versions for strpbrk in static library since we
+ need strpbrk before the initialization happened. */
+#if (defined SHARED || !defined USE_AS_STRPBRK) && !defined NOT_IN_libc
+ .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
+ .globl __i686.get_pc_thunk.bx
+ .hidden __i686.get_pc_thunk.bx
+ .p2align 4
+ .type __i686.get_pc_thunk.bx,@function
+__i686.get_pc_thunk.bx:
+ movl (%esp), %ebx
+ ret
+
+ .text
+ENTRY(STRCSPN)
+ .type STRCSPN, @gnu_indirect_function
+ pushl %ebx
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebx, 0)
+ call __i686.get_pc_thunk.bx
+ addl $_GLOBAL_OFFSET_TABLE_, %ebx
+ cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jne 1f
+ call __init_cpu_features
+1: leal STRCSPN_IA32@GOTOFF(%ebx), %eax
+ testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jz 2f
+ leal STRCSPN_SSE42@GOTOFF(%ebx), %eax
+2: popl %ebx
+ cfi_adjust_cfa_offset (-4);
+ cfi_restore (ebx)
+ ret
+END(STRCSPN)
+
+# undef ENTRY
+# define ENTRY(name) \
+ .type STRCSPN_IA32, @function; \
+ .globl STRCSPN_IA32; \
+ .p2align 4; \
+ STRCSPN_IA32: cfi_startproc; \
+ CALL_MCOUNT
+# undef END
+# define END(name) \
+ cfi_endproc; .size STRCSPN_IA32, .-STRCSPN_IA32
+# undef libc_hidden_builtin_def
+/* It doesn't make sense to send libc-internal strcspn calls through a PLT.
+ The speedup we get from using SSE4.2 instruction is likely eaten away
+ by the indirect call in the PLT. */
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_STRCSPN; __GI_STRCSPN = STRCSPN_IA32
+#endif
+
+#endif /* HAVE_SSE4_SUPPORT */
+
+#ifdef USE_AS_STRPBRK
+#include "../../strpbrk.S"
+#else
+#include "../../strcspn.S"
+#endif
--- /dev/null
+#define __strpbrk_sse2 __strpbrk_ia32
+#include <sysdeps/x86_64/multiarch/strpbrk-c.c>
--- /dev/null
+#define STRCSPN strpbrk
+#define USE_AS_STRPBRK
+#include "strcspn.S"
--- /dev/null
+#define __strspn_sse2 __strspn_ia32
+#include <sysdeps/x86_64/multiarch/strspn-c.c>
--- /dev/null
+/* Multiple versions of strspn
+ Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Intel Corporation.
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <config.h>
+
+#ifdef HAVE_SSE4_SUPPORT
+
+#include <sysdep.h>
+#include <ifunc-defines.h>
+
+/* Define multiple versions only for the definition in libc. */
+#ifndef NOT_IN_libc
+ .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
+ .globl __i686.get_pc_thunk.bx
+ .hidden __i686.get_pc_thunk.bx
+ .p2align 4
+ .type __i686.get_pc_thunk.bx,@function
+__i686.get_pc_thunk.bx:
+ movl (%esp), %ebx
+ ret
+
+ .text
+ENTRY(strspn)
+ .type strspn, @gnu_indirect_function
+ pushl %ebx
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebx, 0)
+ call __i686.get_pc_thunk.bx
+ addl $_GLOBAL_OFFSET_TABLE_, %ebx
+ cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jne 1f
+ call __init_cpu_features
+1: leal __strspn_ia32@GOTOFF(%ebx), %eax
+ testl $(1<<20), CPUID_OFFSET+COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jz 2f
+ leal __strspn_sse42@GOTOFF(%ebx), %eax
+2: popl %ebx
+ cfi_adjust_cfa_offset (-4);
+ cfi_restore (ebx)
+ ret
+END(strspn)
+
+# undef ENTRY
+# define ENTRY(name) \
+ .type __strspn_ia32, @function; \
+ .globl __strspn_ia32; \
+ .p2align 4
+ __strspn_ia32: cfi_startproc; \
+ CALL_MCOUNT
+# undef END
+# define END(name) \
+ cfi_endproc; .size __strspn_ia32, .-__strspn_ia32
+# undef libc_hidden_builtin_def
+/* It doesn't make sense to send libc-internal strspn calls through a PLT.
+ The speedup we get from using SSE4.2 instruction is likely eaten away
+ by the indirect call in the PLT. */
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_strspn; __GI_strspn = __strspn_ia32
+#endif
+
+#endif /* HAVE_SSE4_SUPPORT */
+
+#include "../../strspn.S"
--- /dev/null
+#include "init-arch.h"
+
+#define STRSTR __strstr_ia32
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name) \
+ __hidden_ver1 (__strstr_ia32, __GI_strstr, __strstr_ia32);
+
+#include "string/strstr.c"
+
+extern char *__strstr_sse42 (const char *, const char *);
+
+libc_ifunc (strstr, HAS_SSE4_2 ? __strstr_sse42 : __strstr_ia32);
--- /dev/null
+#include <sysdeps/x86_64/multiarch/strstr.c>
if (offset != 0)
{
/* Load masks. */
- aligned = (const char *) ((size_t) a & 0xfffffffffffffff0L);
+ aligned = (const char *) ((size_t) a & -16L);
__m128i mask0 = _mm_load_si128 ((__m128i *) aligned);
switch (offset)
if (offset != 0)
{
/* Check partial string. */
- aligned = (const char *) ((size_t) s & 0xfffffffffffffff0L);
+ aligned = (const char *) ((size_t) s & -16L);
__m128i value = _mm_load_si128 ((__m128i *) aligned);
switch (offset)
if (offset != 0)
{
/* Load masks. */
- aligned = (const char *) ((size_t) a & 0xfffffffffffffff0L);
+ aligned = (const char *) ((size_t) a & -16L);
__m128i mask0 = _mm_load_si128 ((__m128i *) aligned);
switch (offset)
if (offset != 0)
{
/* Check partial string. */
- aligned = (const char *) ((size_t) s & 0xfffffffffffffff0L);
+ aligned = (const char *) ((size_t) s & -16L);
__m128i value = _mm_load_si128 ((__m128i *) aligned);
switch (offset)
projects / thirdparty / glibc.git / commitdiff
