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glibc-utils.21327
0016-S390-Optimize-strcat-and-wcscat.patch
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File 0016-S390-Optimize-strcat-and-wcscat.patch of Package glibc-utils.21327
2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com> * sysdeps/s390/multiarch/strcat-c.c: New File. * sysdeps/s390/multiarch/strcat-vx.S: Likewise. * sysdeps/s390/multiarch/strcat.c: Likewise. * sysdeps/s390/multiarch/wcscat-c.c: Likewise. * sysdeps/s390/multiarch/wcscat-vx.S: Likewise. * sysdeps/s390/multiarch/wcscat.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcat and wcscat functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strcat, wcscat. * string/strcat.c (STRCAT): Define and use macro. * wcsmbs/wcscat.c: Use WCSCAT if defined. * string/test-strcat.c: Add wcscat support. * wcsmbs/test-wcscat.c: New File. * wcsmbs/Makefile (strop-tests): Add wcscat. * benchtests/bench-strcat.c: Add wcscat support. * benchtests/bench-wcscat.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcscat. Index: glibc-2.22/benchtests/Makefile =================================================================== --- glibc-2.22.orig/benchtests/Makefile +++ glibc-2.22/benchtests/Makefile @@ -36,7 +36,7 @@ string-bench := bcopy bzero memccpy memc strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \ strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \ strcoll -wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy +wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat string-bench-all := $(string-bench) ${wcsmbs-bench} # We have to generate locales Index: glibc-2.22/benchtests/bench-strcat.c =================================================================== --- glibc-2.22.orig/benchtests/bench-strcat.c +++ glibc-2.22/benchtests/bench-strcat.c @@ -17,19 +17,45 @@ <http://www.gnu.org/licenses/>. */ #define TEST_MAIN -#define TEST_NAME "strcat" +#ifndef WIDE +# define TEST_NAME "strcat" +#else +# define TEST_NAME "wcscat" +#endif /* WIDE */ #include "bench-string.h" -typedef char *(*proto_t) (char *, const char *); -char *simple_strcat (char *, const char *); +#ifndef WIDE +# define STRCAT strcat +# define CHAR char +# define sfmt "s" +# define SIMPLE_STRCAT simple_strcat +# define STRLEN strlen +# define STRCMP strcmp +# define BIG_CHAR CHAR_MAX +# define SMALL_CHAR 127 +#else +# include <wchar.h> +# define STRCAT wcscat +# define CHAR wchar_t +# define sfmt "ls" +# define SIMPLE_STRCAT simple_wcscat +# define STRLEN wcslen +# define STRCMP wcscmp +# define BIG_CHAR WCHAR_MAX +# define SMALL_CHAR 1273 +#endif /* WIDE */ -IMPL (simple_strcat, 0) -IMPL (strcat, 1) -char * -simple_strcat (char *dst, const char *src) +typedef CHAR *(*proto_t) (CHAR *, const CHAR *); +CHAR *SIMPLE_STRCAT (CHAR *, const CHAR *); + +IMPL (SIMPLE_STRCAT, 0) +IMPL (STRCAT, 1) + +CHAR * +SIMPLE_STRCAT (CHAR *dst, const CHAR *src) { - char *ret = dst; + CHAR *ret = dst; while (*dst++ != '\0'); --dst; while ((*dst++ = *src++) != '\0'); @@ -37,9 +63,9 @@ simple_strcat (char *dst, const char *sr } static void -do_one_test (impl_t *impl, char *dst, const char *src) +do_one_test (impl_t *impl, CHAR *dst, const CHAR *src) { - size_t k = strlen (dst), i, iters = INNER_LOOP_ITERS; + size_t k = STRLEN (dst), i, iters = INNER_LOOP_ITERS; timing_t start, stop, cur; if (CALL (impl, dst, src) != dst) @@ -50,9 +76,9 @@ do_one_test (impl_t *impl, char *dst, co return; } - if (strcmp (dst + k, src) != 0) + if (STRCMP (dst + k, src) != 0) { - error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"", + error (0, 0, "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"", impl->name, dst, src); ret = 1; return; @@ -75,18 +101,18 @@ static void do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char) { size_t i; - char *s1, *s2; + CHAR *s1, *s2; align1 &= 7; - if (align1 + len1 >= page_size) + if ((align1 + len1) * sizeof (CHAR) >= page_size) return; align2 &= 7; - if (align2 + len1 + len2 >= page_size) + if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size) return; - s1 = (char *) (buf1 + align1); - s2 = (char *) (buf2 + align2); + s1 = (CHAR *) (buf1) + align1; + s2 = (CHAR *) (buf2) + align2; for (i = 0; i < len1; ++i) s1[i] = 32 + 23 * i % (max_char - 32); @@ -120,26 +146,26 @@ test_main (void) for (i = 0; i < 16; ++i) { - do_test (0, 0, i, i, 127); - do_test (0, 0, i, i, 255); - do_test (0, i, i, i, 127); - do_test (i, 0, i, i, 255); + do_test (0, 0, i, i, SMALL_CHAR); + do_test (0, 0, i, i, BIG_CHAR); + do_test (0, i, i, i, SMALL_CHAR); + do_test (i, 0, i, i, BIG_CHAR); } for (i = 1; i < 8; ++i) { - do_test (0, 0, 8 << i, 8 << i, 127); - do_test (8 - i, 2 * i, 8 << i, 8 << i, 127); - do_test (0, 0, 8 << i, 2 << i, 127); - do_test (8 - i, 2 * i, 8 << i, 2 << i, 127); + do_test (0, 0, 8 << i, 8 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 8 << i, SMALL_CHAR); + do_test (0, 0, 8 << i, 2 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 2 << i, SMALL_CHAR); } for (i = 1; i < 8; ++i) { - do_test (i, 2 * i, 8 << i, 1, 127); - do_test (2 * i, i, 8 << i, 1, 255); - do_test (i, i, 8 << i, 10, 127); - do_test (i, i, 8 << i, 10, 255); + do_test (i, 2 * i, 8 << i, 1, SMALL_CHAR); + do_test (2 * i, i, 8 << i, 1, BIG_CHAR); + do_test (i, i, 8 << i, 10, SMALL_CHAR); + do_test (i, i, 8 << i, 10, BIG_CHAR); } return ret; Index: glibc-2.22/benchtests/bench-wcscat.c =================================================================== --- /dev/null +++ glibc-2.22/benchtests/bench-wcscat.c @@ -0,0 +1,20 @@ +/* Measure wcscat functions. + 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/>. */ + +#define WIDE 1 +#include "bench-strcat.c" Index: glibc-2.22/string/strcat.c =================================================================== --- glibc-2.22.orig/string/strcat.c +++ glibc-2.22/string/strcat.c @@ -19,9 +19,13 @@ #undef strcat +#ifndef STRCAT +# define STRCAT strcat +#endif + /* Append SRC on the end of DEST. */ char * -strcat (char *dest, const char *src) +STRCAT (char *dest, const char *src) { strcpy (dest + strlen (dest), src); return dest; Index: glibc-2.22/string/test-strcat.c =================================================================== --- glibc-2.22.orig/string/test-strcat.c +++ glibc-2.22/string/test-strcat.c @@ -1,4 +1,4 @@ -/* Test and measure strcat functions. +/* Test strcat functions. Copyright (C) 1999-2015 Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Jakub Jelinek <jakub@redhat.com>, 1999. @@ -18,19 +18,52 @@ <http://www.gnu.org/licenses/>. */ #define TEST_MAIN -#define TEST_NAME "strcat" +#ifndef WIDE +# define TEST_NAME "strcat" +#else +# define TEST_NAME "wcscat" +#endif /* WIDE */ #include "test-string.h" -typedef char *(*proto_t) (char *, const char *); -char *simple_strcat (char *, const char *); +#ifndef WIDE +# define STRCAT strcat +# define CHAR char +# define UCHAR unsigned char +# define sfmt "s" +# define SIMPLE_STRCAT simple_strcat +# define STRLEN strlen +# define STRCMP strcmp +# define MEMSET memset +# define MEMCPY memcpy +# define MEMCMP memcmp +# define BIG_CHAR CHAR_MAX +# define SMALL_CHAR 127 +#else +# include <wchar.h> +# define STRCAT wcscat +# define CHAR wchar_t +# define UCHAR wchar_t +# define sfmt "ls" +# define SIMPLE_STRCAT simple_wcscat +# define STRLEN wcslen +# define STRCMP wcscmp +# define MEMSET wmemset +# define MEMCPY wmemcpy +# define MEMCMP wmemcmp +# define BIG_CHAR WCHAR_MAX +# define SMALL_CHAR 1273 +#endif /* WIDE */ -IMPL (simple_strcat, 0) -IMPL (strcat, 1) +typedef CHAR *(*proto_t) (CHAR *, const CHAR *); +CHAR *SIMPLE_STRCAT (CHAR *, const CHAR *); -char * -simple_strcat (char *dst, const char *src) +IMPL (SIMPLE_STRCAT, 0) +IMPL (STRCAT, 1) + +CHAR * +SIMPLE_STRCAT (CHAR *dst, const CHAR *src) { - char *ret = dst; + CHAR *ret = dst; while (*dst++ != '\0'); --dst; while ((*dst++ = *src++) != '\0'); @@ -38,9 +71,9 @@ simple_strcat (char *dst, const char *sr } static void -do_one_test (impl_t *impl, char *dst, const char *src) +do_one_test (impl_t *impl, CHAR *dst, const CHAR *src) { - size_t k = strlen (dst); + size_t k = STRLEN (dst); if (CALL (impl, dst, src) != dst) { error (0, 0, "Wrong result in function %s %p %p", impl->name, @@ -49,9 +82,9 @@ do_one_test (impl_t *impl, char *dst, co return; } - if (strcmp (dst + k, src) != 0) + if (STRCMP (dst + k, src) != 0) { - error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"", + error (0, 0, "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"", impl->name, dst, src); ret = 1; return; @@ -62,18 +95,18 @@ static void do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char) { size_t i; - char *s1, *s2; + CHAR *s1, *s2; align1 &= 7; - if (align1 + len1 >= page_size) + if ((align1 + len1) * sizeof (CHAR) >= page_size) return; align2 &= 7; - if (align2 + len1 + len2 >= page_size) + if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size) return; - s1 = (char *) (buf1 + align1); - s2 = (char *) (buf2 + align2); + s1 = (CHAR *) (buf1) + align1; + s2 = (CHAR *) (buf2) + align2; for (i = 0; i < len1; ++i) s1[i] = 32 + 23 * i % (max_char - 32); @@ -93,9 +126,10 @@ static void do_random_tests (void) { size_t i, j, n, align1, align2, len1, len2; - unsigned char *p1 = buf1 + page_size - 512; - unsigned char *p2 = buf2 + page_size - 512; - unsigned char *res; + UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512; + UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512; + UCHAR *p3 = (UCHAR *) buf1; + UCHAR *res; for (n = 0; n < ITERATIONS; n++) { @@ -132,26 +166,26 @@ do_random_tests (void) p1[i] = 0; else { - p1[i] = random () & 255; + p1[i] = random () & BIG_CHAR; if (i >= align1 && i < len1 + align1 && !p1[i]) - p1[i] = (random () & 127) + 3; + p1[i] = (random () & SMALL_CHAR) + 3; } } for (i = 0; i < len2; i++) { - buf1[i] = random () & 255; - if (!buf1[i]) - buf1[i] = (random () & 127) + 3; + p3[i] = random () & BIG_CHAR; + if (!p3[i]) + p3[i] = (random () & SMALL_CHAR) + 3; } - buf1[len2] = 0; + p3[len2] = 0; FOR_EACH_IMPL (impl, 1) { - memset (p2 - 64, '\1', align2 + 64); - memset (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1); - memcpy (p2 + align2, buf1, len2 + 1); - res = (unsigned char *) CALL (impl, (char *) (p2 + align2), - (char *) (p1 + align1)); + MEMSET (p2 - 64, '\1', align2 + 64); + MEMSET (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1); + MEMCPY (p2 + align2, p3, len2 + 1); + res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2), + (CHAR *) (p1 + align1)); if (res != p2 + align2) { error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p", @@ -169,7 +203,7 @@ do_random_tests (void) break; } } - if (memcmp (p2 + align2, buf1, len2)) + if (MEMCMP (p2 + align2, p3, len2)) { error (0, 0, "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)", n, impl->name, align1, align2, len1, len2); @@ -185,7 +219,7 @@ do_random_tests (void) break; } } - if (memcmp (p1 + align1, p2 + align2 + len2, len1 + 1)) + if (MEMCMP (p1 + align1, p2 + align2 + len2, len1 + 1)) { error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)", n, impl->name, align1, align2, len1, len2); @@ -209,26 +243,26 @@ test_main (void) for (i = 0; i < 16; ++i) { - do_test (0, 0, i, i, 127); - do_test (0, 0, i, i, 255); - do_test (0, i, i, i, 127); - do_test (i, 0, i, i, 255); + do_test (0, 0, i, i, SMALL_CHAR); + do_test (0, 0, i, i, BIG_CHAR); + do_test (0, i, i, i, SMALL_CHAR); + do_test (i, 0, i, i, BIG_CHAR); } for (i = 1; i < 8; ++i) { - do_test (0, 0, 8 << i, 8 << i, 127); - do_test (8 - i, 2 * i, 8 << i, 8 << i, 127); - do_test (0, 0, 8 << i, 2 << i, 127); - do_test (8 - i, 2 * i, 8 << i, 2 << i, 127); + do_test (0, 0, 8 << i, 8 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 8 << i, SMALL_CHAR); + do_test (0, 0, 8 << i, 2 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 2 << i, SMALL_CHAR); } for (i = 1; i < 8; ++i) { - do_test (i, 2 * i, 8 << i, 1, 127); - do_test (2 * i, i, 8 << i, 1, 255); - do_test (i, i, 8 << i, 10, 127); - do_test (i, i, 8 << i, 10, 255); + do_test (i, 2 * i, 8 << i, 1, SMALL_CHAR); + do_test (2 * i, i, 8 << i, 1, BIG_CHAR); + do_test (i, i, 8 << i, 10, SMALL_CHAR); + do_test (i, i, 8 << i, 10, BIG_CHAR); } do_random_tests (); Index: glibc-2.22/sysdeps/s390/multiarch/Makefile =================================================================== --- glibc-2.22.orig/sysdeps/s390/multiarch/Makefile +++ glibc-2.22/sysdeps/s390/multiarch/Makefile @@ -4,7 +4,8 @@ sysdep_routines += strlen strlen-vx strl strcpy strcpy-vx \ stpcpy stpcpy-vx stpcpy-c \ strncpy strncpy-vx \ - stpncpy stpncpy-vx stpncpy-c + stpncpy stpncpy-vx stpncpy-c \ + strcat strcat-vx strcat-c endif ifeq ($(subdir),wcsmbs) @@ -13,5 +14,6 @@ sysdep_routines += wcslen wcslen-vx wcsl wcscpy wcscpy-vx wcscpy-c \ wcpcpy wcpcpy-vx wcpcpy-c \ wcsncpy wcsncpy-vx wcsncpy-c \ - wcpncpy wcpncpy-vx wcpncpy-c + wcpncpy wcpncpy-vx wcpncpy-c \ + wcscat wcscat-vx wcscat-c endif Index: glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c =================================================================== --- glibc-2.22.orig/sysdeps/s390/multiarch/ifunc-impl-list.c +++ glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c @@ -97,6 +97,9 @@ __libc_ifunc_impl_list (const char *name IFUNC_VX_IMPL (stpncpy); IFUNC_VX_IMPL (wcpncpy); + IFUNC_VX_IMPL (strcat); + IFUNC_VX_IMPL (wcscat); + #endif /* HAVE_S390_VX_ASM_SUPPORT */ return i; Index: glibc-2.22/sysdeps/s390/multiarch/strcat-c.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/strcat-c.c @@ -0,0 +1,28 @@ +/* Default strcat 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 STRCAT __strcat_c +# ifdef SHARED +# undef libc_hidden_builtin_def +# define libc_hidden_builtin_def(name) \ + __hidden_ver1 (__strcat_c, __GI_strcat, __strcat_c); +# endif /* SHARED */ + +# include <string/strcat.c> +#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ Index: glibc-2.22/sysdeps/s390/multiarch/strcat-vx.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/strcat-vx.S @@ -0,0 +1,161 @@ +/* Vector optimized 32/64 bit S/390 version of strcat. + 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 + +/* char * strcat (const char *dest, const char *src) + Concatenate two strings. + + Register usage: + -r0=saved dest pointer for return + -r1=tmp + -r2=dest + -r3=src + -r4=tmp + -r5=current_len + -v16=part of src + -v17=index of zero + -v18=part of src +*/ +ENTRY(__strcat_vx) + .machine "z13" + .machinemode "zarch_nohighgprs" + + lgr %r0,%r2 /* Save destination pointer for return. */ + + /* STRLEN + r1 = loaded bytes (tmp) + r4 = zero byte index (tmp) + r2 = dst + */ + 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. */ + + vfenezb %v16,%v16,%v16 /* Find element not equal with zero search. */ + vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */ + clrjl %r5,%r1,.Llen_end /* Found zero within loaded bytes, end. */ + + /* Align s to 16 byte. */ + risbgn %r1,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */ + lghi %r5,16 /* current_len = 16. */ + slr %r5,%r1 /* Compute bytes to 16bytes boundary. */ + + /* Find zero in 16byte aligned loop. */ +.Llen_loop: + vl %v16,0(%r5,%r2) /* Load s. */ + vfenezbs %v16,%v16,%v16 /* Find element not equal with zero search. */ + je .Llen_found /* Jump away if zero was found. */ + vl %v16,16(%r5,%r2) + vfenezbs %v16,%v16,%v16 + je .Llen_found16 + vl %v16,32(%r5,%r2) + vfenezbs %v16,%v16,%v16 + je .Llen_found32 + vl %v16,48(%r5,%r2) + vfenezbs %v16,%v16,%v16 + je .Llen_found48 + + aghi %r5,64 + j .Llen_loop /* No zero -> loop. */ + +.Llen_found48: + aghi %r5,16 +.Llen_found32: + aghi %r5,16 +.Llen_found16: + aghi %r5,16 +.Llen_found: + vlgvb %r4,%v16,7 /* Load byte index of zero. */ + algr %r5,%r4 + +.Llen_end: + /* STRCPY + %r1 = loaded bytes (tmp) + %r4 = zero byte index (tmp) + %r3 = curr src pointer + %r2 = curr dst pointer + */ + la %r2,0(%r5,%r2) /* strcpy at end of dst-string. */ + + vlbb %v16,0(%r3),6 /* Load s until next 4k-byte boundary. */ + lcbb %r1,0(%r3),6 /* Get bytes to 4k-byte boundary or 16. */ + + vfenezb %v17,%v16,%v16 /* Find element not equal with zero search. */ + vlgvb %r5,%v17,7 /* Load zero index or 16 if not found. */ + clrjl %r5,%r1,.Lcpy_found_align /* If found zero within loaded bytes, + copy bytes before and return. */ + + /* Align s to 16 byte. */ + risbgn %r4,%r3,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */ + lghi %r5,15 /* current_len = 15. */ + slr %r5,%r4 /* Compute highest index to 16byte boundary. */ + + vstl %v16,%r5,0(%r2) /* Copy loaded characters - no zero. */ + ahi %r5,1 /* Start loop at next character. */ + + /* Find zero in 16byte aligned loop. */ +.Lcpy_loop: + vl %v16,0(%r5,%r3) /* Load s. */ + vfenezbs %v17,%v16,%v16 /* Find element not equal with zero search. */ + je .Lcpy_found_v16_0 /* Jump away if zero was found. */ + vl %v18,16(%r5,%r3)/* Load next part of s. */ + vst %v16,0(%r5,%r2) /* Store previous part without zero to dst. */ + vfenezbs %v17,%v18,%v18 + je .Lcpy_found_v18_16 + vl %v16,32(%r5,%r3) + vst %v18,16(%r5,%r2) + vfenezbs %v17,%v16,%v16 + je .Lcpy_found_v16_32 + vl %v18,48(%r5,%r3) + vst %v16,32(%r5,%r2) + vfenezbs %v17,%v18,%v18 + je .Lcpy_found_v18_48 + vst %v18,48(%r5,%r2) + + aghi %r5,64 + j .Lcpy_loop /* No zero -> loop. */ + +.Lcpy_found_v16_32: + aghi %r5,32 +.Lcpy_found_v16_0: + la %r4,0(%r5,%r2) + vlgvb %r1,%v17,7 /* Load byte index of zero. */ + vstl %v16,%r1,0(%r4) /* Copy characters including zero. */ + lgr %r2,%r0 /* Load saved dest-ptr. */ + br %r14 + +.Lcpy_found_v18_48: + aghi %r5,32 +.Lcpy_found_v18_16: + la %r4,16(%r5,%r2) + vlgvb %r1,%v17,7 /* Load byte index of zero. */ + vstl %v18,%r1,0(%r4) /* Copy characters including zero. */ + lgr %r2,%r0 /* Load saved dest-ptr. */ + br %r14 + +.Lcpy_found_align: + vstl %v16,%r5,0(%r2) /* Copy characters including zero. */ + lgr %r2,%r0 /* Load saved dest-ptr. */ + br %r14 +END(__strcat_vx) +#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ Index: glibc-2.22/sysdeps/s390/multiarch/strcat.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/strcat.c @@ -0,0 +1,27 @@ +/* Multiple versions of strcat. + 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 (__strcat, strcat) + +#else +# include <string/strcat.c> +#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */ Index: glibc-2.22/sysdeps/s390/multiarch/wcscat-c.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/wcscat-c.c @@ -0,0 +1,25 @@ +/* Default wcscat 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 WCSCAT __wcscat_c + +# include <wchar.h> +extern __typeof (__wcscat) __wcscat_c; +# include <wcsmbs/wcscat.c> +#endif Index: glibc-2.22/sysdeps/s390/multiarch/wcscat-vx.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/wcscat-vx.S @@ -0,0 +1,175 @@ +/* Vector optimized 32/64 bit S/390 version of wcscat. + 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 + +/* wchar_t * wcscat (wchar_t *dest, const wchar_t *src) + Concatenate two strings. + + Register usage: + -r0=saved dest pointer for return + -r1=tmp + -r2=dest + -r3=src + -r4=tmp + -r5=current_len + -v16=part of src + -v17=index of zero + -v18=part of src +*/ +ENTRY(__wcscat_vx) + .machine "z13" + .machinemode "zarch_nohighgprs" + + 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. */ + + /* __wcslen_c can handle non 4byte aligned pointers, + but __wcscpy_c not. Thus if either src or dest is + not 4byte aligned, use __wcscat_c. */ + tmll %r2,3 /* Test if s is 4-byte aligned? */ + jne .Lfallback /* And use common-code variant if not. */ + tmll %r3,3 /* Test if src is 4-byte aligned? */ + jne .Lfallback /* And use common-code variant if not. */ + + lgr %r0,%r2 /* Save destination pointer for return. */ + + /* WCSLEN + r1 = loaded bytes (tmp) + r4 = zero byte index (tmp) + r2 = dst + */ + + vfenezf %v16,%v16,%v16 /* Find element not equal with zero search. */ + vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */ + clrjl %r5,%r1,.Llen_end /* Found zero within loaded bytes, end. */ + + /* Align s to 16 byte. */ + risbgn %r1,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */ + lghi %r5,16 /* current_len = 16. */ + slr %r5,%r1 /* Compute bytes to 16bytes boundary. */ + + /* Find zero in 16byte aligned loop. */ +.Llen_loop: + vl %v16,0(%r5,%r2) /* Load s. */ + vfenezfs %v16,%v16,%v16 /* Find element not equal with zero search. */ + je .Llen_found /* Jump away if zero was found. */ + vl %v16,16(%r5,%r2) + vfenezfs %v16,%v16,%v16 + je .Llen_found16 + vl %v16,32(%r5,%r2) + vfenezfs %v16,%v16,%v16 + je .Llen_found32 + vl %v16,48(%r5,%r2) + vfenezfs %v16,%v16,%v16 + je .Llen_found48 + + aghi %r5,64 + j .Llen_loop /* No zero -> loop. */ + +.Llen_found48: + aghi %r5,16 +.Llen_found32: + aghi %r5,16 +.Llen_found16: + aghi %r5,16 +.Llen_found: + vlgvb %r4,%v16,7 /* Load byte index of zero. */ + algr %r5,%r4 + +.Llen_end: + /* WCSCPY + %r1 = loaded bytes (tmp) + %r4 = zero byte index (tmp) + %r3 = curr src pointer + %r2 = curr dst pointer + */ + la %r2,0(%r5,%r2) /* strcpy at end of dst-string. */ + + vlbb %v16,0(%r3),6 /* Load s until next 4k-byte boundary. */ + lcbb %r1,0(%r3),6 /* Get bytes to 4k-byte boundary or 16. */ + + vfenezf %v17,%v16,%v16 /* Find element not equal with zero search. */ + vlgvb %r5,%v17,7 /* Load zero index or 16 if not found. */ + clrjl %r5,%r1,.Lcpy_found_align /* If found zero within loaded bytes, + copy bytes before and return. */ + + /* Align s to 16 byte. */ + risbgn %r4,%r3,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */ + lghi %r5,15 /* current_len = 15. */ + slr %r5,%r4 /* Compute highest index to 16byte boundary. */ + + vstl %v16,%r5,0(%r2) /* Copy loaded characters - no zero. */ + ahi %r5,1 /* Start loop at next character. */ + + /* Find zero in 16byte aligned loop. */ +.Lcpy_loop: + vl %v16,0(%r5,%r3) /* Load s. */ + vfenezfs %v17,%v16,%v16 /* Find element not equal with zero search. */ + je .Lcpy_found_v16_0 /* Jump away if zero was found. */ + vl %v18,16(%r5,%r3) /* Load next part of s. */ + vst %v16,0(%r5,%r2) /* Save previous part without zero to dst. */ + vfenezfs %v17,%v18,%v18 + je .Lcpy_found_v18_16 + vl %v16,32(%r5,%r3) + vst %v18,16(%r5,%r2) + vfenezfs %v17,%v16,%v16 + je .Lcpy_found_v16_32 + vl %v18,48(%r5,%r3) + vst %v16,32(%r5,%r2) + vfenezfs %v17,%v18,%v18 + je .Lcpy_found_v18_48 + vst %v18,48(%r5,%r2) + + aghi %r5,64 + j .Lcpy_loop /* No zero -> loop. */ + +.Lcpy_found_v16_32: + aghi %r5,32 +.Lcpy_found_v16_0: + la %r4,0(%r5,%r2) + vlgvb %r1,%v17,7 /* Load byte index of zero. */ + aghi %r1,3 /* Also copy remaining bytes of zero. */ + vstl %v16,%r1,0(%r4) /* Copy characters including zero. */ + lgr %r2,%r0 /* Load saved dest-ptr. */ + br %r14 + +.Lcpy_found_v18_48: + aghi %r5,32 +.Lcpy_found_v18_16: + la %r4,16(%r5,%r2) + vlgvb %r1,%v17,7 /* Load byte index of zero. */ + aghi %r1,3 /* Also copy remaining bytes of zero. */ + vstl %v18,%r1,0(%r4) /* Copy characters including zero. */ + lgr %r2,%r0 /* Load saved dest-ptr. */ + br %r14 + +.Lcpy_found_align: + aghi %r5,3 /* Also copy remaining bytes of found zero. */ + vstl %v16,%r5,0(%r2) /* Copy characters including zero. */ + lgr %r2,%r0 /* Load saved dest-ptr. */ + br %r14 +.Lfallback: + jg __wcscat_c +END(__wcscat_vx) +#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ Index: glibc-2.22/sysdeps/s390/multiarch/wcscat.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/wcscat.c @@ -0,0 +1,28 @@ +/* Multiple versions of wcscat. + 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_ifunc (__wcscat) +weak_alias (__wcscat, wcscat) + +#else +# include <wcsmbs/wcscat.c> +#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */ Index: glibc-2.22/wcsmbs/Makefile =================================================================== --- glibc-2.22.orig/wcsmbs/Makefile +++ glibc-2.22/wcsmbs/Makefile @@ -44,7 +44,7 @@ routines := wcscat wcschr wcscmp wcscpy mbrtoc16 c16rtomb strop-tests := wcscmp wcsncmp wmemcmp wcslen wcschr wcsrchr wcscpy wcsnlen \ - wcpcpy wcsncpy wcpncpy + wcpcpy wcsncpy wcpncpy wcscat tests := tst-wcstof wcsmbs-tst1 tst-wcsnlen tst-btowc tst-mbrtowc \ tst-wcrtomb tst-wcpncpy tst-mbsrtowcs tst-wchar-h tst-mbrtowc2 \ tst-c16c32-1 wcsatcliff $(addprefix test-,$(strop-tests)) Index: glibc-2.22/wcsmbs/test-wcscat.c =================================================================== --- /dev/null +++ glibc-2.22/wcsmbs/test-wcscat.c @@ -0,0 +1,20 @@ +/* Test wcscat functions. + 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/>. */ + +#define WIDE 1 +#include "../string/test-strcat.c" Index: glibc-2.22/wcsmbs/wcscat.c =================================================================== --- glibc-2.22.orig/wcsmbs/wcscat.c +++ glibc-2.22/wcsmbs/wcscat.c @@ -18,6 +18,9 @@ #include <wchar.h> +#ifdef WCSCAT +# define __wcscat WCSCAT +#endif /* Append SRC on the end of DEST. */ wchar_t * @@ -47,4 +50,6 @@ __wcscat (dest, src) return dest; } +#ifndef WCSCAT weak_alias (__wcscat, wcscat) +#endif
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