From 52cf11004eb10f8ebbc193fbdf4094cfecb3dbff Mon Sep 17 00:00:00 2001 From: Noah Goldstein Date: Tue, 8 Nov 2022 17:38:41 -0800 Subject: x86: Add avx2 optimized functions for the wchar_t strcpy family Implemented: wcscat-avx2 (+ 744 bytes wcscpy-avx2 (+ 539 bytes) wcpcpy-avx2 (+ 577 bytes) wcsncpy-avx2 (+1108 bytes) wcpncpy-avx2 (+1214 bytes) wcsncat-avx2 (+1085 bytes) Performance Changes: Times are from N = 10 runs of the benchmark suite and are reported as geometric mean of all ratios of New Implementation / Best Old Implementation. Best Old Implementation was determined with the highest ISA implementation. wcscat-avx2 -> 0.975 wcscpy-avx2 -> 0.591 wcpcpy-avx2 -> 0.698 wcsncpy-avx2 -> 0.730 wcpncpy-avx2 -> 0.711 wcsncat-avx2 -> 0.954 Code Size Changes: This change increase the size of libc.so by ~5.5kb bytes. For reference the patch optimizing the normal strcpy family functions decreases libc.so by ~5.2kb. Full check passes on x86-64 and build succeeds for all ISA levels w/ and w/o multiarch. --- sysdeps/x86_64/multiarch/Makefile | 6 ++++++ sysdeps/x86_64/multiarch/ifunc-impl-list.c | 28 ++++++++++++++++++++++++++-- sysdeps/x86_64/multiarch/ifunc-wcs.h | 7 +++++++ sysdeps/x86_64/multiarch/wcpcpy-avx2.S | 8 ++++++++ sysdeps/x86_64/multiarch/wcpcpy-generic.c | 2 +- sysdeps/x86_64/multiarch/wcpncpy-avx2.S | 8 ++++++++ sysdeps/x86_64/multiarch/wcpncpy-generic.c | 2 +- sysdeps/x86_64/multiarch/wcscat-avx2.S | 10 ++++++++++ sysdeps/x86_64/multiarch/wcscat-generic.c | 2 +- sysdeps/x86_64/multiarch/wcscpy-avx2.S | 7 +++++++ sysdeps/x86_64/multiarch/wcscpy-generic.c | 2 +- sysdeps/x86_64/multiarch/wcscpy.c | 5 +++++ sysdeps/x86_64/multiarch/wcsncat-avx2.S | 9 +++++++++ sysdeps/x86_64/multiarch/wcsncat-generic.c | 2 +- sysdeps/x86_64/multiarch/wcsncpy-avx2.S | 7 +++++++ sysdeps/x86_64/multiarch/wcsncpy-generic.c | 2 +- sysdeps/x86_64/wcpcpy-generic.c | 2 +- sysdeps/x86_64/wcpcpy.S | 3 ++- sysdeps/x86_64/wcpncpy-generic.c | 2 +- sysdeps/x86_64/wcpncpy.S | 3 ++- sysdeps/x86_64/wcscat-generic.c | 2 +- sysdeps/x86_64/wcscat.S | 3 ++- sysdeps/x86_64/wcscpy.S | 1 + sysdeps/x86_64/wcsncat-generic.c | 2 +- sysdeps/x86_64/wcsncat.S | 3 ++- sysdeps/x86_64/wcsncpy-generic.c | 2 +- sysdeps/x86_64/wcsncpy.S | 3 ++- 27 files changed, 115 insertions(+), 18 deletions(-) create mode 100644 sysdeps/x86_64/multiarch/wcpcpy-avx2.S create mode 100644 sysdeps/x86_64/multiarch/wcpncpy-avx2.S create mode 100644 sysdeps/x86_64/multiarch/wcscat-avx2.S create mode 100644 sysdeps/x86_64/multiarch/wcscpy-avx2.S create mode 100644 sysdeps/x86_64/multiarch/wcsncat-avx2.S create mode 100644 sysdeps/x86_64/multiarch/wcsncpy-avx2.S diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile index d6e01940c3..e1e894c963 100644 --- a/sysdeps/x86_64/multiarch/Makefile +++ b/sysdeps/x86_64/multiarch/Makefile @@ -131,10 +131,13 @@ endif ifeq ($(subdir),wcsmbs) sysdep_routines += \ + wcpcpy-avx2 \ wcpcpy-evex \ wcpcpy-generic \ + wcpncpy-avx2 \ wcpncpy-evex \ wcpncpy-generic \ + wcscat-avx2 \ wcscat-evex \ wcscat-generic \ wcschr-avx2 \ @@ -146,6 +149,7 @@ sysdep_routines += \ wcscmp-avx2-rtm \ wcscmp-evex \ wcscmp-sse2 \ + wcscpy-avx2 \ wcscpy-evex \ wcscpy-generic \ wcscpy-ssse3 \ @@ -155,11 +159,13 @@ sysdep_routines += \ wcslen-evex512 \ wcslen-sse2 \ wcslen-sse4_1 \ + wcsncat-avx2 \ wcsncat-evex \ wcsncat-generic \ wcsncmp-avx2 \ wcsncmp-avx2-rtm \ wcsncmp-evex \ + wcsncpy-avx2 \ wcsncpy-evex \ wcsncpy-generic \ wcsnlen-avx2 \ diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index c908d6c158..0c15dfebfd 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -907,6 +907,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (BMI2)), __wcscpy_evex) X86_IFUNC_IMPL_ADD_V3 (array, i, wcscpy, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcscpy_avx2) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcscpy, CPU_FEATURE_USABLE (SSSE3), __wcscpy_ssse3) X86_IFUNC_IMPL_ADD_V1 (array, i, wcscpy, @@ -920,7 +924,11 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (AVX512BW) && CPU_FEATURE_USABLE (BMI2)), __wcsncpy_evex) - X86_IFUNC_IMPL_ADD_V3 (array, i, wcpncpy, + X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncpy, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcsncpy_avx2) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcpncpy, 1, __wcsncpy_generic)) @@ -932,6 +940,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (BMI2)), __wcpcpy_evex) X86_IFUNC_IMPL_ADD_V3 (array, i, wcpcpy, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcpcpy_avx2) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcpcpy, 1, __wcpcpy_generic)) @@ -942,7 +954,11 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (AVX512BW) && CPU_FEATURE_USABLE (BMI2)), __wcpncpy_evex) - X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncpy, + X86_IFUNC_IMPL_ADD_V3 (array, i, wcpncpy, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcpncpy_avx2) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcsncpy, 1, __wcpncpy_generic)) @@ -954,6 +970,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (BMI2)), __wcscat_evex) X86_IFUNC_IMPL_ADD_V3 (array, i, wcscat, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcscat_avx2) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcscat, 1, __wcscat_generic)) @@ -965,6 +985,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (BMI2)), __wcsncat_evex) X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncat, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcsncat_avx2) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcsncat, 1, __wcsncat_generic)) diff --git a/sysdeps/x86_64/multiarch/ifunc-wcs.h b/sysdeps/x86_64/multiarch/ifunc-wcs.h index 1d2a63458b..51194e620e 100644 --- a/sysdeps/x86_64/multiarch/ifunc-wcs.h +++ b/sysdeps/x86_64/multiarch/ifunc-wcs.h @@ -27,6 +27,8 @@ extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (GENERIC) attribute_hidden; static inline void * @@ -42,6 +44,11 @@ IFUNC_SELECTOR (void) if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) return OPTIMIZE (evex); + + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + Prefer_No_VZEROUPPER, !)) + return OPTIMIZE (avx2); + } return OPTIMIZE (GENERIC); diff --git a/sysdeps/x86_64/multiarch/wcpcpy-avx2.S b/sysdeps/x86_64/multiarch/wcpcpy-avx2.S new file mode 100644 index 0000000000..0fffd912d3 --- /dev/null +++ b/sysdeps/x86_64/multiarch/wcpcpy-avx2.S @@ -0,0 +1,8 @@ +#ifndef WCPCPY +# define WCPCPY __wcpcpy_avx2 +#endif + +#define USE_AS_STPCPY +#define USE_AS_WCSCPY +#define STRCPY WCPCPY +#include "strcpy-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcpcpy-generic.c b/sysdeps/x86_64/multiarch/wcpcpy-generic.c index 6039196a3e..0ba29b081f 100644 --- a/sysdeps/x86_64/multiarch/wcpcpy-generic.c +++ b/sysdeps/x86_64/multiarch/wcpcpy-generic.c @@ -19,7 +19,7 @@ /* We always need to build this implementation as strspn-sse4 needs to be able to fallback to it. */ #include -#if ISA_SHOULD_BUILD (3) +#if ISA_SHOULD_BUILD (2) # define WCPCPY __wcpcpy_generic # include diff --git a/sysdeps/x86_64/multiarch/wcpncpy-avx2.S b/sysdeps/x86_64/multiarch/wcpncpy-avx2.S new file mode 100644 index 0000000000..b7e594f7b7 --- /dev/null +++ b/sysdeps/x86_64/multiarch/wcpncpy-avx2.S @@ -0,0 +1,8 @@ +#ifndef WCPNCPY +# define WCPNCPY __wcpncpy_avx2 +#endif + +#define USE_AS_WCSCPY +#define USE_AS_STPCPY +#define STRNCPY WCPNCPY +#include "strncpy-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcpncpy-generic.c b/sysdeps/x86_64/multiarch/wcpncpy-generic.c index de8d34320e..4aab4ecdd2 100644 --- a/sysdeps/x86_64/multiarch/wcpncpy-generic.c +++ b/sysdeps/x86_64/multiarch/wcpncpy-generic.c @@ -19,7 +19,7 @@ /* We always need to build this implementation as strspn-sse4 needs to be able to fallback to it. */ #include -#if ISA_SHOULD_BUILD (3) +#if ISA_SHOULD_BUILD (2) # define WCPNCPY __wcpncpy_generic # include diff --git a/sysdeps/x86_64/multiarch/wcscat-avx2.S b/sysdeps/x86_64/multiarch/wcscat-avx2.S new file mode 100644 index 0000000000..a20f23c09d --- /dev/null +++ b/sysdeps/x86_64/multiarch/wcscat-avx2.S @@ -0,0 +1,10 @@ +#ifndef WCSCAT +# define WCSCAT __wcscat_avx2 +#endif + +#define USE_AS_WCSCPY +#define USE_AS_STRCAT + +#define STRCPY WCSCAT + +#include "strcpy-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcscat-generic.c b/sysdeps/x86_64/multiarch/wcscat-generic.c index d86b4d5c00..6476f85bbb 100644 --- a/sysdeps/x86_64/multiarch/wcscat-generic.c +++ b/sysdeps/x86_64/multiarch/wcscat-generic.c @@ -19,7 +19,7 @@ /* We always need to build this implementation as strspn-sse4 needs to be able to fallback to it. */ #include -#if ISA_SHOULD_BUILD (3) +#if ISA_SHOULD_BUILD (2) # define WCSCAT __wcscat_generic # include diff --git a/sysdeps/x86_64/multiarch/wcscpy-avx2.S b/sysdeps/x86_64/multiarch/wcscpy-avx2.S new file mode 100644 index 0000000000..6bc509da07 --- /dev/null +++ b/sysdeps/x86_64/multiarch/wcscpy-avx2.S @@ -0,0 +1,7 @@ +#ifndef WCSCPY +# define WCSCPY __wcscpy_avx2 +#endif + +#define USE_AS_WCSCPY +#define STRCPY WCSCPY +#include "strcpy-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcscpy-generic.c b/sysdeps/x86_64/multiarch/wcscpy-generic.c index 4a1fffae4b..600d606c45 100644 --- a/sysdeps/x86_64/multiarch/wcscpy-generic.c +++ b/sysdeps/x86_64/multiarch/wcscpy-generic.c @@ -18,7 +18,7 @@ #include -#if ISA_SHOULD_BUILD (3) +#if ISA_SHOULD_BUILD (2) # define WCSCPY __wcscpy_generic # include diff --git a/sysdeps/x86_64/multiarch/wcscpy.c b/sysdeps/x86_64/multiarch/wcscpy.c index 9ad77da8ac..e204059873 100644 --- a/sysdeps/x86_64/multiarch/wcscpy.c +++ b/sysdeps/x86_64/multiarch/wcscpy.c @@ -28,6 +28,8 @@ extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (ssse3) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (generic) attribute_hidden; @@ -44,6 +46,9 @@ IFUNC_SELECTOR (void) if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) return OPTIMIZE (evex); + + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER, !)) + return OPTIMIZE (avx2); } if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, SSSE3)) diff --git a/sysdeps/x86_64/multiarch/wcsncat-avx2.S b/sysdeps/x86_64/multiarch/wcsncat-avx2.S new file mode 100644 index 0000000000..a72105b7e9 --- /dev/null +++ b/sysdeps/x86_64/multiarch/wcsncat-avx2.S @@ -0,0 +1,9 @@ +#ifndef WCSNCAT +# define WCSNCAT __wcsncat_avx2 +#endif + +#define USE_AS_WCSCPY +#define USE_AS_STRCAT + +#define STRNCAT WCSNCAT +#include "strncat-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcsncat-generic.c b/sysdeps/x86_64/multiarch/wcsncat-generic.c index 4b55cb40bc..9ced02b35e 100644 --- a/sysdeps/x86_64/multiarch/wcsncat-generic.c +++ b/sysdeps/x86_64/multiarch/wcsncat-generic.c @@ -19,7 +19,7 @@ /* We always need to build this implementation as strspn-sse4 needs to be able to fallback to it. */ #include -#if ISA_SHOULD_BUILD (3) +#if ISA_SHOULD_BUILD (2) # define WCSNCAT __wcsncat_generic # include diff --git a/sysdeps/x86_64/multiarch/wcsncpy-avx2.S b/sysdeps/x86_64/multiarch/wcsncpy-avx2.S new file mode 100644 index 0000000000..3a1a8a372c --- /dev/null +++ b/sysdeps/x86_64/multiarch/wcsncpy-avx2.S @@ -0,0 +1,7 @@ +#ifndef WCSNCPY +# define WCSNCPY __wcsncpy_avx2 +#endif + +#define USE_AS_WCSCPY +#define STRNCPY WCSNCPY +#include "strncpy-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcsncpy-generic.c b/sysdeps/x86_64/multiarch/wcsncpy-generic.c index d0e8a86605..693521713b 100644 --- a/sysdeps/x86_64/multiarch/wcsncpy-generic.c +++ b/sysdeps/x86_64/multiarch/wcsncpy-generic.c @@ -19,7 +19,7 @@ /* We always need to build this implementation as strspn-sse4 needs to be able to fallback to it. */ #include -#if ISA_SHOULD_BUILD (3) +#if ISA_SHOULD_BUILD (2) # define WCSNCPY __wcsncpy_generic # include diff --git a/sysdeps/x86_64/wcpcpy-generic.c b/sysdeps/x86_64/wcpcpy-generic.c index 3ddc98872f..4ab6182cd9 100644 --- a/sysdeps/x86_64/wcpcpy-generic.c +++ b/sysdeps/x86_64/wcpcpy-generic.c @@ -24,7 +24,7 @@ #include -#if MINIMUM_X86_ISA_LEVEL <= 3 +#if MINIMUM_X86_ISA_LEVEL <= 2 # include diff --git a/sysdeps/x86_64/wcpcpy.S b/sysdeps/x86_64/wcpcpy.S index 4e4fca71eb..e64af6977f 100644 --- a/sysdeps/x86_64/wcpcpy.S +++ b/sysdeps/x86_64/wcpcpy.S @@ -24,11 +24,12 @@ #include -#if MINIMUM_X86_ISA_LEVEL >= 4 +#if MINIMUM_X86_ISA_LEVEL >= 3 # define WCPCPY __wcpcpy # define DEFAULT_IMPL_V4 "multiarch/wcpcpy-evex.S" +# define DEFAULT_IMPL_V3 "multiarch/wcpcpy-avx2.S" /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it should never be used from here. */ # define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL" diff --git a/sysdeps/x86_64/wcpncpy-generic.c b/sysdeps/x86_64/wcpncpy-generic.c index 0c76e5614c..18c0377d35 100644 --- a/sysdeps/x86_64/wcpncpy-generic.c +++ b/sysdeps/x86_64/wcpncpy-generic.c @@ -24,7 +24,7 @@ #include -#if MINIMUM_X86_ISA_LEVEL <= 3 +#if MINIMUM_X86_ISA_LEVEL <= 2 # include diff --git a/sysdeps/x86_64/wcpncpy.S b/sysdeps/x86_64/wcpncpy.S index b4e531473e..0e0f432fbb 100644 --- a/sysdeps/x86_64/wcpncpy.S +++ b/sysdeps/x86_64/wcpncpy.S @@ -24,11 +24,12 @@ #include -#if MINIMUM_X86_ISA_LEVEL >= 4 +#if MINIMUM_X86_ISA_LEVEL >= 3 # define WCPNCPY __wcpncpy # define DEFAULT_IMPL_V4 "multiarch/wcpncpy-evex.S" +# define DEFAULT_IMPL_V3 "multiarch/wcpncpy-avx2.S" /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it should never be used from here. */ # define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL" diff --git a/sysdeps/x86_64/wcscat-generic.c b/sysdeps/x86_64/wcscat-generic.c index 512d0e4d43..639ceac523 100644 --- a/sysdeps/x86_64/wcscat-generic.c +++ b/sysdeps/x86_64/wcscat-generic.c @@ -24,7 +24,7 @@ #include -#if MINIMUM_X86_ISA_LEVEL <= 3 +#if MINIMUM_X86_ISA_LEVEL <= 2 # include diff --git a/sysdeps/x86_64/wcscat.S b/sysdeps/x86_64/wcscat.S index ee8360b6e8..06130f58f9 100644 --- a/sysdeps/x86_64/wcscat.S +++ b/sysdeps/x86_64/wcscat.S @@ -24,11 +24,12 @@ #include -#if MINIMUM_X86_ISA_LEVEL >= 4 +#if MINIMUM_X86_ISA_LEVEL >= 3 # define WCSCAT __wcscat # define DEFAULT_IMPL_V4 "multiarch/wcscat-evex.S" +# define DEFAULT_IMPL_V3 "multiarch/wcscat-avx2.S" /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it should never be used from here. */ # define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL" diff --git a/sysdeps/x86_64/wcscpy.S b/sysdeps/x86_64/wcscpy.S index e403579961..4a859585a6 100644 --- a/sysdeps/x86_64/wcscpy.S +++ b/sysdeps/x86_64/wcscpy.S @@ -29,6 +29,7 @@ # define WCSCPY __wcscpy # define DEFAULT_IMPL_V4 "multiarch/wcscpy-evex.S" +# define DEFAULT_IMPL_V3 "multiarch/wcscpy-avx2.S" # define DEFAULT_IMPL_V2 "multiarch/wcscpy-ssse3.S" /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it should never be used from here. */ diff --git a/sysdeps/x86_64/wcsncat-generic.c b/sysdeps/x86_64/wcsncat-generic.c index 86e20d9028..57bdd9b7cf 100644 --- a/sysdeps/x86_64/wcsncat-generic.c +++ b/sysdeps/x86_64/wcsncat-generic.c @@ -24,7 +24,7 @@ #include -#if MINIMUM_X86_ISA_LEVEL <= 3 +#if MINIMUM_X86_ISA_LEVEL <= 2 # include diff --git a/sysdeps/x86_64/wcsncat.S b/sysdeps/x86_64/wcsncat.S index 090055a1b8..e1d8609651 100644 --- a/sysdeps/x86_64/wcsncat.S +++ b/sysdeps/x86_64/wcsncat.S @@ -24,11 +24,12 @@ #include -#if MINIMUM_X86_ISA_LEVEL >= 4 +#if MINIMUM_X86_ISA_LEVEL >= 3 # define WCSNCAT wcsncat # define DEFAULT_IMPL_V4 "multiarch/wcsncat-evex.S" +# define DEFAULT_IMPL_V3 "multiarch/wcsncat-avx2.S" /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it should never be used from here. */ # define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL" diff --git a/sysdeps/x86_64/wcsncpy-generic.c b/sysdeps/x86_64/wcsncpy-generic.c index 0f0ee65b65..4dcbd8ac7f 100644 --- a/sysdeps/x86_64/wcsncpy-generic.c +++ b/sysdeps/x86_64/wcsncpy-generic.c @@ -24,7 +24,7 @@ #include -#if MINIMUM_X86_ISA_LEVEL <= 3 +#if MINIMUM_X86_ISA_LEVEL <= 2 # include diff --git a/sysdeps/x86_64/wcsncpy.S b/sysdeps/x86_64/wcsncpy.S index 32eaf1163b..f305b5eb9b 100644 --- a/sysdeps/x86_64/wcsncpy.S +++ b/sysdeps/x86_64/wcsncpy.S @@ -24,11 +24,12 @@ #include -#if MINIMUM_X86_ISA_LEVEL >= 4 +#if MINIMUM_X86_ISA_LEVEL >= 3 # define WCSNCPY __wcsncpy # define DEFAULT_IMPL_V4 "multiarch/wcsncpy-evex.S" +# define DEFAULT_IMPL_V3 "multiarch/wcsncpy-avx2.S" /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it should never be used from here. */ # define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL" -- cgit v1.2.1