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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-07-13 16:32:59 -0700 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-07-16 03:07:59 -0700 |
| commit | ceabdcd130ca7043b0fcf2676183d79431d10493 (patch) | |
| tree | f6ced435023b66ac1f3b519e5b26a60ef8f479dd | |
| parent | c353689e49e72f3aafa1a9e68d4f7a4f33a79cbe (diff) | |
| download | glibc-ceabdcd130ca7043b0fcf2676183d79431d10493.tar.gz | |
x86: Add support to build strcmp/strlen/strchr with explicit ISA level
1. Add default ISA level selection in non-multiarch/rtld
implementations.
2. Add ISA level build guards to different implementations.
- I.e strcmp-avx2.S which is ISA level 3 will only build if
compiled ISA level <= 3. Otherwise there is no reason to
include it as we will always use one of the ISA level 4
implementations (strcmp-evex.S).
3. Refactor the ifunc selector and ifunc implementation list to use
the ISA level aware wrapper macros that allow functions below the
compiled ISA level (with a guranteed replacement) to be skipped.
Tested with and without multiarch on x86_64 for ISA levels:
{generic, x86-64-v2, x86-64-v3, x86-64-v4}
And m32 with and without multiarch.
88 files changed, 1157 insertions, 618 deletions
diff --git a/sysdeps/x86/isa-level.h b/sysdeps/x86/isa-level.h index 77f9e2c0c3..3c4480aba7 100644 --- a/sysdeps/x86/isa-level.h +++ b/sysdeps/x86/isa-level.h @@ -84,6 +84,7 @@ /* ISA level >= 2 guaranteed includes. */ #define SSE4_2_X86_ISA_LEVEL 2 +#define SSE4_1_X86_ISA_LEVEL 2 #define SSSE3_X86_ISA_LEVEL 2 @@ -101,9 +102,18 @@ when ISA level < 3. */ #define Prefer_No_VZEROUPPER_X86_ISA_LEVEL 3 +/* NB: This feature is disable when ISA level >= 3. All CPUs with + this feature don't run on glibc built with ISA level >= 3. */ +#define Slow_SSE42_X86_ISA_LEVEL 3 + /* Feature(s) enabled when ISA level >= 2. */ #define Fast_Unaligned_Load_X86_ISA_LEVEL 2 +/* NB: This feature is disable when ISA level >= 2, which was enabled + for the early Atom CPUs. */ +#define Slow_BSF_X86_ISA_LEVEL 2 + + /* Both X86_ISA_CPU_FEATURE_USABLE_P and X86_ISA_CPU_FEATURES_ARCH_P macros are wrappers for the respective CPU_FEATURE{S}_{USABLE|ARCH}_P runtime checks. They differ in two ways. diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index e597a4855f..341ee69a35 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -197,6 +197,12 @@ gen-as-const-headers += tlsdesc.sym rtld-offsets.sym endif ifeq ($(subdir),wcsmbs) + +sysdep_routines += \ + wcsncmp-generic \ + wcsnlen-generic \ +# sysdep_routines + tests += \ tst-rsi-wcslen endif diff --git a/sysdeps/x86_64/memrchr.S b/sysdeps/x86_64/memrchr.S index 385e2c5668..d39b1aa0e2 100644 --- a/sysdeps/x86_64/memrchr.S +++ b/sysdeps/x86_64/memrchr.S @@ -1,4 +1,4 @@ -/* fast SSE2 memrchr with 64 byte loop and pmaxub instruction using +/* memrchr dispatch for RTLD and non-multiarch build Copyright (C) 2011-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -18,5 +18,11 @@ <https://www.gnu.org/licenses/>. */ #define MEMRCHR __memrchr -#include "multiarch/memrchr-sse2.S" + +#define DEFAULT_IMPL_V1 "multiarch/memrchr-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/memrchr-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/memrchr-evex.S" + +#include "isa-default-impl.h" + weak_alias (__memrchr, memrchr) diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile index d6b62af850..ba29a65716 100644 --- a/sysdeps/x86_64/multiarch/Makefile +++ b/sysdeps/x86_64/multiarch/Makefile @@ -144,11 +144,9 @@ sysdep_routines += \ wcslen-sse4_1 \ wcsncmp-avx2 \ wcsncmp-avx2-rtm \ - wcsncmp-generic \ wcsncmp-evex \ wcsnlen-avx2 \ wcsnlen-avx2-rtm \ - wcsnlen-generic \ wcsnlen-evex \ wcsnlen-evex512 \ wcsnlen-sse4_1 \ diff --git a/sysdeps/x86_64/multiarch/ifunc-avx2.h b/sysdeps/x86_64/multiarch/ifunc-avx2.h index 1d9cdfcfec..a57a9952f3 100644 --- a/sysdeps/x86_64/multiarch/ifunc-avx2.h +++ b/sysdeps/x86_64/multiarch/ifunc-avx2.h @@ -23,28 +23,32 @@ # define GENERIC sse2 #endif -extern __typeof (REDIRECT_NAME) OPTIMIZE (GENERIC) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (GENERIC) attribute_hidden; static inline void * IFUNC_SELECTOR (void) { - const struct cpu_features* cpu_features = __get_cpu_features (); + const struct cpu_features *cpu_features = __get_cpu_features (); - if (CPU_FEATURE_USABLE_P (cpu_features, AVX2) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2) - && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2) + && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + AVX_Fast_Unaligned_Load, )) { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) return OPTIMIZE (evex); if (CPU_FEATURE_USABLE_P (cpu_features, RTM)) return OPTIMIZE (avx2_rtm); - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + Prefer_No_VZEROUPPER, !)) return OPTIMIZE (avx2); } diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index 2c96cb62d2..3b1df9b73c 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -205,19 +205,22 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/memrchr.c. */ IFUNC_IMPL (i, name, memrchr, - IFUNC_IMPL_ADD (array, i, memrchr, - CPU_FEATURE_USABLE (AVX2), - __memrchr_avx2) - IFUNC_IMPL_ADD (array, i, memrchr, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __memrchr_avx2_rtm) - IFUNC_IMPL_ADD (array, i, memrchr, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), - __memrchr_evex) - - IFUNC_IMPL_ADD (array, i, memrchr, 1, __memrchr_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, memrchr, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __memrchr_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, memrchr, + CPU_FEATURE_USABLE (AVX2), + __memrchr_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, memrchr, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __memrchr_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, memrchr, + 1, + __memrchr_sse2)) #ifdef SHARED /* Support sysdeps/x86_64/multiarch/memset_chk.c. */ @@ -346,49 +349,57 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/strlen.c. */ IFUNC_IMPL (i, name, strlen, - IFUNC_IMPL_ADD (array, i, strlen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2)), - __strlen_avx2) - IFUNC_IMPL_ADD (array, i, strlen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2) - && CPU_FEATURE_USABLE (RTM)), - __strlen_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strlen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __strlen_evex) - IFUNC_IMPL_ADD (array, i, strlen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __strlen_evex512) - IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strlen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __strlen_evex) + X86_IFUNC_IMPL_ADD_V4 (array, i, strlen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __strlen_evex512) + X86_IFUNC_IMPL_ADD_V3 (array, i, strlen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __strlen_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strlen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2) + && CPU_FEATURE_USABLE (RTM)), + __strlen_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strlen, + 1, + __strlen_sse2)) /* Support sysdeps/x86_64/multiarch/strnlen.c. */ IFUNC_IMPL (i, name, strnlen, - IFUNC_IMPL_ADD (array, i, strnlen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2)), - __strnlen_avx2) - IFUNC_IMPL_ADD (array, i, strnlen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2) - && CPU_FEATURE_USABLE (RTM)), - __strnlen_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strnlen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __strnlen_evex) - IFUNC_IMPL_ADD (array, i, strnlen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __strnlen_evex512) - IFUNC_IMPL_ADD (array, i, strnlen, 1, __strnlen_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strnlen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __strnlen_evex) + X86_IFUNC_IMPL_ADD_V4 (array, i, strnlen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __strnlen_evex512) + X86_IFUNC_IMPL_ADD_V3 (array, i, strnlen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __strnlen_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strnlen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2) + && CPU_FEATURE_USABLE (RTM)), + __strnlen_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strnlen, + 1, + __strnlen_sse2)) /* Support sysdeps/x86_64/multiarch/stpncpy.c. */ IFUNC_IMPL (i, name, stpncpy, @@ -422,40 +433,47 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/strcasecmp_l.c. */ IFUNC_IMPL (i, name, strcasecmp, - IFUNC_IMPL_ADD (array, i, strcasecmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), - __strcasecmp_evex) - IFUNC_IMPL_ADD (array, i, strcasecmp, - CPU_FEATURE_USABLE (AVX2), - __strcasecmp_avx2) - IFUNC_IMPL_ADD (array, i, strcasecmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __strcasecmp_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strcasecmp, - CPU_FEATURE_USABLE (SSE4_2), - __strcasecmp_sse42) - IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strcasecmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strcasecmp_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp, + CPU_FEATURE_USABLE (AVX2), + __strcasecmp_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __strcasecmp_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp, + CPU_FEATURE_USABLE (SSE4_2), + __strcasecmp_sse42) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp, + 1, + __strcasecmp_sse2)) /* Support sysdeps/x86_64/multiarch/strcasecmp_l.c. */ IFUNC_IMPL (i, name, strcasecmp_l, - IFUNC_IMPL_ADD (array, i, strcasecmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), - __strcasecmp_l_evex) - IFUNC_IMPL_ADD (array, i, strcasecmp, - CPU_FEATURE_USABLE (AVX2), - __strcasecmp_l_avx2) - IFUNC_IMPL_ADD (array, i, strcasecmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __strcasecmp_l_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strcasecmp_l, - CPU_FEATURE_USABLE (SSE4_2), - __strcasecmp_l_sse42) - IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1, - __strcasecmp_l_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strcasecmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strcasecmp_l_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp, + CPU_FEATURE_USABLE (AVX2), + __strcasecmp_l_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strcasecmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __strcasecmp_l_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp_l, + CPU_FEATURE_USABLE (SSE4_2), + __strcasecmp_l_sse42) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strcasecmp_l, + 1, + __strcasecmp_l_sse2)) /* Support sysdeps/x86_64/multiarch/strcat.c. */ IFUNC_IMPL (i, name, strcat, @@ -474,74 +492,95 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/strchr.c. */ IFUNC_IMPL (i, name, strchr, - IFUNC_IMPL_ADD (array, i, strchr, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2)), - __strchr_avx2) - IFUNC_IMPL_ADD (array, i, strchr, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2) - && CPU_FEATURE_USABLE (RTM)), - __strchr_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strchr, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __strchr_evex) - IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2_no_bsf) - IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strchr, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __strchr_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strchr, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __strchr_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strchr, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2) + && CPU_FEATURE_USABLE (RTM)), + __strchr_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strchr, + 1, + __strchr_sse2) + X86_IFUNC_IMPL_ADD_V1 (array, i, strchr, + 1, + __strchr_sse2_no_bsf)) /* Support sysdeps/x86_64/multiarch/strchrnul.c. */ IFUNC_IMPL (i, name, strchrnul, - IFUNC_IMPL_ADD (array, i, strchrnul, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2)), - __strchrnul_avx2) - IFUNC_IMPL_ADD (array, i, strchrnul, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2) - && CPU_FEATURE_USABLE (RTM)), - __strchrnul_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strchrnul, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __strchrnul_evex) - IFUNC_IMPL_ADD (array, i, strchrnul, 1, __strchrnul_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strchrnul, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __strchrnul_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strchrnul, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __strchrnul_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strchrnul, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2) + && CPU_FEATURE_USABLE (RTM)), + __strchrnul_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strchrnul, + 1, + __strchrnul_sse2)) /* Support sysdeps/x86_64/multiarch/strrchr.c. */ IFUNC_IMPL (i, name, strrchr, - IFUNC_IMPL_ADD (array, i, strrchr, - CPU_FEATURE_USABLE (AVX2), - __strrchr_avx2) - IFUNC_IMPL_ADD (array, i, strrchr, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __strrchr_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strrchr, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), - __strrchr_evex) - IFUNC_IMPL_ADD (array, i, strrchr, 1, __strrchr_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strrchr, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strrchr_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strrchr, + CPU_FEATURE_USABLE (AVX2), + __strrchr_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strrchr, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __strrchr_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strrchr, + 1, + __strrchr_sse2)) /* Support sysdeps/x86_64/multiarch/strcmp.c. */ IFUNC_IMPL (i, name, strcmp, - IFUNC_IMPL_ADD (array, i, strcmp, - CPU_FEATURE_USABLE (AVX2), - __strcmp_avx2) - IFUNC_IMPL_ADD (array, i, strcmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __strcmp_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strcmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __strcmp_evex) - IFUNC_IMPL_ADD (array, i, strcmp, CPU_FEATURE_USABLE (SSE4_2), - __strcmp_sse42) - IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2_unaligned) - IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strcmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __strcmp_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strcmp, + CPU_FEATURE_USABLE (AVX2), + __strcmp_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strcmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __strcmp_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, strcmp, + CPU_FEATURE_USABLE (SSE4_2), + __strcmp_sse42) + /* ISA V2 wrapper for SSE2 implementations because the SSE2 + implementations are also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strcmp, + 1, + __strcmp_sse2_unaligned) + X86_IFUNC_IMPL_ADD_V2 (array, i, strcmp, + 1, + __strcmp_sse2)) /* Support sysdeps/x86_64/multiarch/strcpy.c. */ IFUNC_IMPL (i, name, strcpy, @@ -568,41 +607,47 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/strncase_l.c. */ IFUNC_IMPL (i, name, strncasecmp, - IFUNC_IMPL_ADD (array, i, strncasecmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), - __strncasecmp_evex) - IFUNC_IMPL_ADD (array, i, strncasecmp, - CPU_FEATURE_USABLE (AVX2), - __strncasecmp_avx2) - IFUNC_IMPL_ADD (array, i, strncasecmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __strncasecmp_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strncasecmp, - CPU_FEATURE_USABLE (SSE4_2), - __strncasecmp_sse42) - IFUNC_IMPL_ADD (array, i, strncasecmp, 1, - __strncasecmp_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strncasecmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strncasecmp_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp, + CPU_FEATURE_USABLE (AVX2), + __strncasecmp_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __strncasecmp_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp, + CPU_FEATURE_USABLE (SSE4_2), + __strncasecmp_sse42) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp, + 1, + __strncasecmp_sse2)) /* Support sysdeps/x86_64/multiarch/strncase_l.c. */ IFUNC_IMPL (i, name, strncasecmp_l, - IFUNC_IMPL_ADD (array, i, strncasecmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), - __strncasecmp_l_evex) - IFUNC_IMPL_ADD (array, i, strncasecmp, - CPU_FEATURE_USABLE (AVX2), - __strncasecmp_l_avx2) - IFUNC_IMPL_ADD (array, i, strncasecmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __strncasecmp_l_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strncasecmp_l, - CPU_FEATURE_USABLE (SSE4_2), - __strncasecmp_l_sse42) - IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1, - __strncasecmp_l_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strncasecmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strncasecmp_l_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp, + CPU_FEATURE_USABLE (AVX2), + __strncasecmp_l_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strncasecmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __strncasecmp_l_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp_l, + CPU_FEATURE_USABLE (SSE4_2), + __strncasecmp_l_sse42) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strncasecmp_l, + 1, + __strncasecmp_l_sse2)) /* Support sysdeps/x86_64/multiarch/strncat.c. */ IFUNC_IMPL (i, name, strncat, @@ -664,69 +709,85 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/wcschr.c. */ IFUNC_IMPL (i, name, wcschr, - IFUNC_IMPL_ADD (array, i, wcschr, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2)), - __wcschr_avx2) - IFUNC_IMPL_ADD (array, i, wcschr, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2) - && CPU_FEATURE_USABLE (RTM)), - __wcschr_avx2_rtm) - IFUNC_IMPL_ADD (array, i, wcschr, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcschr_evex) - IFUNC_IMPL_ADD (array, i, wcschr, 1, __wcschr_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcschr, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcschr_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcschr, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcschr_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcschr, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2) + && CPU_FEATURE_USABLE (RTM)), + __wcschr_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, wcschr, + 1, + __wcschr_sse2)) /* Support sysdeps/x86_64/multiarch/wcsrchr.c. */ IFUNC_IMPL (i, name, wcsrchr, - IFUNC_IMPL_ADD (array, i, wcsrchr, - CPU_FEATURE_USABLE (AVX2), - __wcsrchr_avx2) - IFUNC_IMPL_ADD (array, i, wcsrchr, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __wcsrchr_avx2_rtm) - IFUNC_IMPL_ADD (array, i, wcsrchr, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcsrchr_evex) - IFUNC_IMPL_ADD (array, i, wcsrchr, 1, __wcsrchr_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcsrchr, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcsrchr_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcsrchr, + CPU_FEATURE_USABLE (AVX2), + __wcsrchr_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcsrchr, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __wcsrchr_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, wcsrchr, + 1, + __wcsrchr_sse2)) /* Support sysdeps/x86_64/multiarch/wcscmp.c. */ IFUNC_IMPL (i, name, wcscmp, - IFUNC_IMPL_ADD (array, i, wcscmp, - CPU_FEATURE_USABLE (AVX2), - __wcscmp_avx2) - IFUNC_IMPL_ADD (array, i, wcscmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __wcscmp_avx2_rtm) - IFUNC_IMPL_ADD (array, i, wcscmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcscmp_evex) - IFUNC_IMPL_ADD (array, i, wcscmp, 1, __wcscmp_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcscmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcscmp_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcscmp, + CPU_FEATURE_USABLE (AVX2), + __wcscmp_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcscmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __wcscmp_avx2_rtm) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, wcscmp, + 1, + __wcscmp_sse2)) /* Support sysdeps/x86_64/multiarch/wcsncmp.c. */ IFUNC_IMPL (i, name, wcsncmp, - IFUNC_IMPL_ADD (array, i, wcsncmp, - CPU_FEATURE_USABLE (AVX2), - __wcsncmp_avx2) - IFUNC_IMPL_ADD (array, i, wcsncmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __wcsncmp_avx2_rtm) - IFUNC_IMPL_ADD (array, i, wcsncmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcsncmp_evex) - IFUNC_IMPL_ADD (array, i, wcsncmp, 1, __wcsncmp_generic)) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcsncmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcsncmp_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncmp, + CPU_FEATURE_USABLE (AVX2), + __wcsncmp_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcsncmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __wcsncmp_avx2_rtm) + /* ISA V2 wrapper for GENERIC implementation because the + GENERIC implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, wcsncmp, + 1, + __wcsncmp_generic)) /* Support sysdeps/x86_64/multiarch/wcscpy.c. */ IFUNC_IMPL (i, name, wcscpy, @@ -736,55 +797,59 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/wcslen.c. */ IFUNC_IMPL (i, name, wcslen, - IFUNC_IMPL_ADD (array, i, wcslen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2)), - __wcslen_avx2) - IFUNC_IMPL_ADD (array, i, wcslen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2) - && CPU_FEATURE_USABLE (RTM)), - __wcslen_avx2_rtm) - IFUNC_IMPL_ADD (array, i, wcslen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcslen_evex) - IFUNC_IMPL_ADD (array, i, wcslen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcslen_evex512) - IFUNC_IMPL_ADD (array, i, wcslen, - CPU_FEATURE_USABLE (SSE4_1), - __wcslen_sse4_1) - IFUNC_IMPL_ADD (array, i, wcslen, 1, __wcslen_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcslen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcslen_evex) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcslen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcslen_evex512) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcslen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcslen_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcslen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2) + && CPU_FEATURE_USABLE (RTM)), + __wcslen_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcslen, + CPU_FEATURE_USABLE (SSE4_1), + __wcslen_sse4_1) + X86_IFUNC_IMPL_ADD_V1 (array, i, wcslen, + 1, + __wcslen_sse2)) /* Support sysdeps/x86_64/multiarch/wcsnlen.c. */ IFUNC_IMPL (i, name, wcsnlen, - IFUNC_IMPL_ADD (array, i, wcsnlen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2)), - __wcsnlen_avx2) - IFUNC_IMPL_ADD (array, i, wcsnlen, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (BMI2) - && CPU_FEATURE_USABLE (RTM)), - __wcsnlen_avx2_rtm) - IFUNC_IMPL_ADD (array, i, wcsnlen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcsnlen_evex) - IFUNC_IMPL_ADD (array, i, wcsnlen, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW) - && CPU_FEATURE_USABLE (BMI2)), - __wcsnlen_evex512) - IFUNC_IMPL_ADD (array, i, wcsnlen, - CPU_FEATURE_USABLE (SSE4_1), - __wcsnlen_sse4_1) - IFUNC_IMPL_ADD (array, i, wcsnlen, 1, __wcsnlen_generic)) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcsnlen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcsnlen_evex) + X86_IFUNC_IMPL_ADD_V4 (array, i, wcsnlen, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW) + && CPU_FEATURE_USABLE (BMI2)), + __wcsnlen_evex512) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcsnlen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2)), + __wcsnlen_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, wcsnlen, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (BMI2) + && CPU_FEATURE_USABLE (RTM)), + __wcsnlen_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, wcsnlen, + CPU_FEATURE_USABLE (SSE4_1), + __wcsnlen_sse4_1) + X86_IFUNC_IMPL_ADD_V1 (array, i, wcsnlen, + 1, + __wcsnlen_generic)) /* Support sysdeps/x86_64/multiarch/wmemchr.c. */ IFUNC_IMPL (i, name, wmemchr, @@ -1050,20 +1115,25 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/x86_64/multiarch/strncmp.c. */ IFUNC_IMPL (i, name, strncmp, - IFUNC_IMPL_ADD (array, i, strncmp, - CPU_FEATURE_USABLE (AVX2), - __strncmp_avx2) - IFUNC_IMPL_ADD (array, i, strncmp, - (CPU_FEATURE_USABLE (AVX2) - && CPU_FEATURE_USABLE (RTM)), - __strncmp_avx2_rtm) - IFUNC_IMPL_ADD (array, i, strncmp, - (CPU_FEATURE_USABLE (AVX512VL) - && CPU_FEATURE_USABLE (AVX512BW)), - __strncmp_evex) - IFUNC_IMPL_ADD (array, i, strncmp, CPU_FEATURE_USABLE (SSE4_2), - __strncmp_sse42) - IFUNC_IMPL_ADD (array, i, strncmp, 1, __strncmp_sse2)) + X86_IFUNC_IMPL_ADD_V4 (array, i, strncmp, + (CPU_FEATURE_USABLE (AVX512VL) + && CPU_FEATURE_USABLE (AVX512BW)), + __strncmp_evex) + X86_IFUNC_IMPL_ADD_V3 (array, i, strncmp, + CPU_FEATURE_USABLE (AVX2), + __strncmp_avx2) + X86_IFUNC_IMPL_ADD_V3 (array, i, strncmp, + (CPU_FEATURE_USABLE (AVX2) + && CPU_FEATURE_USABLE (RTM)), + __strncmp_avx2_rtm) + X86_IFUNC_IMPL_ADD_V2 (array, i, strncmp, + CPU_FEATURE_USABLE (SSE4_2), + __strncmp_sse42) + /* ISA V2 wrapper for SSE2 implementation because the SSE2 + implementation is also used at ISA level 2. */ + X86_IFUNC_IMPL_ADD_V2 (array, i, strncmp, + 1, + __strncmp_sse2)) #ifdef SHARED /* Support sysdeps/x86_64/multiarch/wmemset_chk.c. */ diff --git a/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h b/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h index 296d32071b..68646ef199 100644 --- a/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h +++ b/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h @@ -19,32 +19,39 @@ #include <init-arch.h> -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; static inline void * IFUNC_SELECTOR (void) { - const struct cpu_features* cpu_features = __get_cpu_features (); + const struct cpu_features *cpu_features = __get_cpu_features (); - if (CPU_FEATURE_USABLE_P (cpu_features, AVX2) - && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2) + && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + AVX_Fast_Unaligned_Load, )) { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) - return OPTIMIZE (evex); + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) + return OPTIMIZE (evex); if (CPU_FEATURE_USABLE_P (cpu_features, RTM)) - return OPTIMIZE (avx2_rtm); + return OPTIMIZE (avx2_rtm); - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) - return OPTIMIZE (avx2); + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + Prefer_No_VZEROUPPER, !)) + return OPTIMIZE (avx2); } - if (CPU_FEATURE_USABLE_P (cpu_features, SSE4_2) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, SSE4_2) + /* Keep this as a runtime check as its not guaranteed at ISA + level 2. */ && !CPU_FEATURES_ARCH_P (cpu_features, Slow_SSE4_2)) return OPTIMIZE (sse42); diff --git a/sysdeps/x86_64/multiarch/ifunc-wcslen.h b/sysdeps/x86_64/multiarch/ifunc-wcslen.h index 88c1c502af..064722c2bd 100644 --- a/sysdeps/x86_64/multiarch/ifunc-wcslen.h +++ b/sysdeps/x86_64/multiarch/ifunc-wcslen.h @@ -23,33 +23,38 @@ # define GENERIC sse2 #endif -extern __typeof (REDIRECT_NAME) OPTIMIZE (GENERIC) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse4_1) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse4_1) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (GENERIC) attribute_hidden; static inline void * IFUNC_SELECTOR (void) { - const struct cpu_features* cpu_features = __get_cpu_features (); + const struct cpu_features *cpu_features = __get_cpu_features (); - if (CPU_FEATURE_USABLE_P (cpu_features, AVX2) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2) - && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2) + && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + AVX_Fast_Unaligned_Load, )) { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) return OPTIMIZE (evex); if (CPU_FEATURE_USABLE_P (cpu_features, RTM)) return OPTIMIZE (avx2_rtm); - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + Prefer_No_VZEROUPPER, !)) return OPTIMIZE (avx2); } - if (CPU_FEATURE_USABLE_P (cpu_features, SSE4_1)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, SSE4_1)) return OPTIMIZE (sse4_1); return OPTIMIZE (GENERIC); diff --git a/sysdeps/x86_64/multiarch/memrchr-avx2.S b/sysdeps/x86_64/multiarch/memrchr-avx2.S index f300d7daf4..d1457ab60c 100644 --- a/sysdeps/x86_64/multiarch/memrchr-avx2.S +++ b/sysdeps/x86_64/multiarch/memrchr-avx2.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (3) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/memrchr-evex.S b/sysdeps/x86_64/multiarch/memrchr-evex.S index 91329b18dc..ea3a0a0a60 100644 --- a/sysdeps/x86_64/multiarch/memrchr-evex.S +++ b/sysdeps/x86_64/multiarch/memrchr-evex.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (4) # include <sysdep.h> # include "evex256-vecs.h" diff --git a/sysdeps/x86_64/multiarch/memrchr-sse2.S b/sysdeps/x86_64/multiarch/memrchr-sse2.S index d92a4022dc..4cc8b9e3b0 100644 --- a/sysdeps/x86_64/multiarch/memrchr-sse2.S +++ b/sysdeps/x86_64/multiarch/memrchr-sse2.S @@ -16,22 +16,26 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +/* MINIMUM_X86_ISA_LEVEL <= 2 because there is no V2 implementation + so we need this to build for ISA V2 builds. */ +#if ISA_SHOULD_BUILD (2) + # ifndef MEMRCHR # define MEMRCHR __memrchr_sse2 # endif -#endif -#include <sysdep.h> -#define VEC_SIZE 16 -#define PAGE_SIZE 4096 +# include <sysdep.h> +# define VEC_SIZE 16 +# define PAGE_SIZE 4096 .text ENTRY_P2ALIGN(MEMRCHR, 6) -#ifdef __ILP32__ +# ifdef __ILP32__ /* Clear upper bits. */ mov %RDX_LP, %RDX_LP -#endif +# endif movd %esi, %xmm0 /* Get end pointer. */ @@ -352,3 +356,4 @@ L(zero_3): ret /* 2-bytes from next cache line. */ END(MEMRCHR) +#endif diff --git a/sysdeps/x86_64/multiarch/strcasecmp_l-avx2-rtm.S b/sysdeps/x86_64/multiarch/strcasecmp_l-avx2-rtm.S index 09957fc3c5..d408751f4c 100644 --- a/sysdeps/x86_64/multiarch/strcasecmp_l-avx2-rtm.S +++ b/sysdeps/x86_64/multiarch/strcasecmp_l-avx2-rtm.S @@ -1,15 +1,2 @@ -#ifndef STRCMP -# define STRCMP __strcasecmp_l_avx2_rtm -#endif - -#define _GLABEL(x) x ## _rtm -#define GLABEL(x) _GLABEL(x) - -#define ZERO_UPPER_VEC_REGISTERS_RETURN \ - ZERO_UPPER_VEC_REGISTERS_RETURN_XTEST - -#define VZEROUPPER_RETURN jmp L(return_vzeroupper) - -#define SECTION(p) p##.avx.rtm - -#include "strcasecmp_l-avx2.S" +#define USE_AS_STRCASECMP_L +#include "strcmp-avx2-rtm.S" diff --git a/sysdeps/x86_64/multiarch/strcasecmp_l-avx2.S b/sysdeps/x86_64/multiarch/strcasecmp_l-avx2.S index e2762f2a22..167f866014 100644 --- a/sysdeps/x86_64/multiarch/strcasecmp_l-avx2.S +++ b/sysdeps/x86_64/multiarch/strcasecmp_l-avx2.S @@ -16,8 +16,5 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#ifndef STRCMP -# define STRCMP __strcasecmp_l_avx2 -#endif #define USE_AS_STRCASECMP_L #include "strcmp-avx2.S" diff --git a/sysdeps/x86_64/multiarch/strcasecmp_l-evex.S b/sysdeps/x86_64/multiarch/strcasecmp_l-evex.S index 58642db748..012a084930 100644 --- a/sysdeps/x86_64/multiarch/strcasecmp_l-evex.S +++ b/sysdeps/x86_64/multiarch/strcasecmp_l-evex.S @@ -16,8 +16,5 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#ifndef STRCMP -# define STRCMP __strcasecmp_l_evex -#endif #define USE_AS_STRCASECMP_L #include "strcmp-evex.S" diff --git a/sysdeps/x86_64/multiarch/strcasecmp_l-sse2.S b/sysdeps/x86_64/multiarch/strcasecmp_l-sse2.S index a2b5741399..6ffd09b513 100644 --- a/sysdeps/x86_64/multiarch/strcasecmp_l-sse2.S +++ b/sysdeps/x86_64/multiarch/strcasecmp_l-sse2.S @@ -17,4 +17,5 @@ <https://www.gnu.org/licenses/>. */ #define USE_AS_STRCASECMP_L + #include "strcmp-sse2.S" diff --git a/sysdeps/x86_64/multiarch/strchr-avx2.S b/sysdeps/x86_64/multiarch/strchr-avx2.S index 1a916cc951..425a40b8de 100644 --- a/sysdeps/x86_64/multiarch/strchr-avx2.S +++ b/sysdeps/x86_64/multiarch/strchr-avx2.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (3) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/strchr-evex.S b/sysdeps/x86_64/multiarch/strchr-evex.S index ec739fb8f9..a1c15c4419 100644 --- a/sysdeps/x86_64/multiarch/strchr-evex.S +++ b/sysdeps/x86_64/multiarch/strchr-evex.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (4) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/strchr-sse2-no-bsf.S b/sysdeps/x86_64/multiarch/strchr-sse2-no-bsf.S index 93e6f62d7f..bb092e3f61 100644 --- a/sysdeps/x86_64/multiarch/strchr-sse2-no-bsf.S +++ b/sysdeps/x86_64/multiarch/strchr-sse2-no-bsf.S @@ -16,7 +16,11 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +/* NB: atom builds with ISA level == 1 so no reason to hold onto this + at ISA level >= 2. */ +#if ISA_SHOULD_BUILD (1) # include <sysdep.h> # include "asm-syntax.h" diff --git a/sysdeps/x86_64/multiarch/strchr-sse2.S b/sysdeps/x86_64/multiarch/strchr-sse2.S index f7767ca543..7a182f0c3b 100644 --- a/sysdeps/x86_64/multiarch/strchr-sse2.S +++ b/sysdeps/x86_64/multiarch/strchr-sse2.S @@ -16,7 +16,12 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) || defined STRCHR +#include <isa-level.h> + +/* MINIMUM_X86_ISA_LEVEL <= 2 because there is no V2 implementation + so we need this to build for ISA V2 builds. */ +#if ISA_SHOULD_BUILD (2) + # ifndef STRCHR # define STRCHR __strchr_sse2 # endif diff --git a/sysdeps/x86_64/multiarch/strchr.c b/sysdeps/x86_64/multiarch/strchr.c index de737580eb..ce7441c532 100644 --- a/sysdeps/x86_64/multiarch/strchr.c +++ b/sysdeps/x86_64/multiarch/strchr.c @@ -26,36 +26,40 @@ # define SYMBOL_NAME strchr # include <init-arch.h> -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2_no_bsf) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2_no_bsf) attribute_hidden; static inline void * IFUNC_SELECTOR (void) { - const struct cpu_features* cpu_features = __get_cpu_features (); + const struct cpu_features *cpu_features = __get_cpu_features (); - if (CPU_FEATURE_USABLE_P (cpu_features, AVX2) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2) - && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2) + && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + AVX_Fast_Unaligned_Load, )) { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)) return OPTIMIZE (evex); if (CPU_FEATURE_USABLE_P (cpu_features, RTM)) return OPTIMIZE (avx2_rtm); - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + Prefer_No_VZEROUPPER, !)) return OPTIMIZE (avx2); } - if (CPU_FEATURES_ARCH_P (cpu_features, Slow_BSF)) - return OPTIMIZE (sse2_no_bsf); + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, Slow_BSF, !)) + return OPTIMIZE (sse2); - return OPTIMIZE (sse2); + return OPTIMIZE (sse2_no_bsf); } libc_ifunc_redirected (__redirect_strchr, strchr, IFUNC_SELECTOR ()); diff --git a/sysdeps/x86_64/multiarch/strchrnul-avx2.S b/sysdeps/x86_64/multiarch/strchrnul-avx2.S index fa0cc09760..10ad5e6058 100644 --- a/sysdeps/x86_64/multiarch/strchrnul-avx2.S +++ b/sysdeps/x86_64/multiarch/strchrnul-avx2.S @@ -1,3 +1,8 @@ -#define STRCHR __strchrnul_avx2 +#ifndef STRCHRNUL +# define STRCHRNUL __strchrnul_avx2 +#endif + +#define STRCHR STRCHRNUL #define USE_AS_STRCHRNUL 1 + #include "strchr-avx2.S" diff --git a/sysdeps/x86_64/multiarch/strchrnul-evex.S b/sysdeps/x86_64/multiarch/strchrnul-evex.S index 064fe7ca9e..0f216cb47f 100644 --- a/sysdeps/x86_64/multiarch/strchrnul-evex.S +++ b/sysdeps/x86_64/multiarch/strchrnul-evex.S @@ -1,3 +1,8 @@ -#define STRCHR __strchrnul_evex +#ifndef STRCHRNUL +# define STRCHRNUL __strchrnul_evex +#endif + +#define STRCHR STRCHRNUL #define USE_AS_STRCHRNUL 1 + #include "strchr-evex.S" diff --git a/sysdeps/x86_64/multiarch/strchrnul-sse2.S b/sysdeps/x86_64/multiarch/strchrnul-sse2.S index 7238977a21..7ee81ae510 100644 --- a/sysdeps/x86_64/multiarch/strchrnul-sse2.S +++ b/sysdeps/x86_64/multiarch/strchrnul-sse2.S @@ -16,12 +16,10 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) -# ifndef STRCHR -# define STRCHR __strchrnul_sse2 -# endif +#ifndef STRCHRNUL +# define STRCHRNUL __strchrnul_sse2 #endif - #define AS_STRCHRNUL +#define STRCHR STRCHRNUL #include "strchr-sse2.S" diff --git a/sysdeps/x86_64/multiarch/strcmp-avx2-rtm.S b/sysdeps/x86_64/multiarch/strcmp-avx2-rtm.S index aecd30d97f..74f1f996a9 100644 --- a/sysdeps/x86_64/multiarch/strcmp-avx2-rtm.S +++ b/sysdeps/x86_64/multiarch/strcmp-avx2-rtm.S @@ -1,12 +1,9 @@ -#ifndef STRCMP -# define STRCMP __strcmp_avx2_rtm -#endif - #define ZERO_UPPER_VEC_REGISTERS_RETURN \ ZERO_UPPER_VEC_REGISTERS_RETURN_XTEST #define VZEROUPPER_RETURN jmp L(return_vzeroupper) #define SECTION(p) p##.avx.rtm +#define STRCMP_ISA _avx2_rtm #include "strcmp-avx2.S" diff --git a/sysdeps/x86_64/multiarch/strcmp-avx2.S b/sysdeps/x86_64/multiarch/strcmp-avx2.S index 3ab21e3a58..4c01d664e8 100644 --- a/sysdeps/x86_64/multiarch/strcmp-avx2.S +++ b/sysdeps/x86_64/multiarch/strcmp-avx2.S @@ -16,7 +16,15 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (3) + +# ifndef STRCMP_ISA +# define STRCMP_ISA _avx2 +# endif + +# include "strcmp-naming.h" # include <sysdep.h> @@ -86,15 +94,11 @@ # ifdef USE_AS_STRCASECMP_L # ifdef USE_AS_STRNCMP -# define STRCASECMP __strncasecmp_avx2 # define LOCALE_REG rcx # define LOCALE_REG_LP RCX_LP -# define STRCASECMP_L_NONASCII __strncasecmp_l_nonascii # else -# define STRCASECMP __strcasecmp_avx2 # define LOCALE_REG rdx # define LOCALE_REG_LP RDX_LP -# define STRCASECMP_L_NONASCII __strcasecmp_l_nonascii # endif # endif @@ -185,18 +189,14 @@ .type STRCMP, @function .globl STRCMP -# ifndef GLABEL -# define GLABEL(...) __VA_ARGS__ -# endif - # ifdef USE_AS_STRCASECMP_L -ENTRY (GLABEL(STRCASECMP)) +ENTRY (STRCASECMP) movq __libc_tsd_LOCALE@gottpoff(%rip), %rax mov %fs:(%rax), %LOCALE_REG_LP /* Either 1 or 5 bytes (dependeing if CET is enabled). */ .p2align 4 -END (GLABEL(STRCASECMP)) +END (STRCASECMP) /* FALLTHROUGH to strcasecmp/strncasecmp_l. */ # endif diff --git a/sysdeps/x86_64/multiarch/strcmp-evex.S b/sysdeps/x86_64/multiarch/strcmp-evex.S index afbf13a230..e482d0167f 100644 --- a/sysdeps/x86_64/multiarch/strcmp-evex.S +++ b/sysdeps/x86_64/multiarch/strcmp-evex.S @@ -16,7 +16,12 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (4) + +# define STRCMP_ISA _evex +# include "strcmp-naming.h" # include <sysdep.h> # if defined USE_AS_STRCASECMP_L @@ -37,10 +42,6 @@ # define VMOVA vmovdqa64 # ifdef USE_AS_WCSCMP -# ifndef OVERFLOW_STRCMP -# define OVERFLOW_STRCMP __wcscmp_evex -# endif - # define TESTEQ subl $0xff, /* Compare packed dwords. */ # define VPCMP vpcmpd @@ -50,10 +51,6 @@ /* 1 dword char == 4 bytes. */ # define SIZE_OF_CHAR 4 # else -# ifndef OVERFLOW_STRCMP -# define OVERFLOW_STRCMP __strcmp_evex -# endif - # define TESTEQ incl /* Compare packed bytes. */ # define VPCMP vpcmpb @@ -120,15 +117,11 @@ # ifdef USE_AS_STRCASECMP_L # ifdef USE_AS_STRNCMP -# define STRCASECMP __strncasecmp_evex # define LOCALE_REG rcx # define LOCALE_REG_LP RCX_LP -# define STRCASECMP_L_NONASCII __strncasecmp_l_nonascii # else -# define STRCASECMP __strcasecmp_evex # define LOCALE_REG rdx # define LOCALE_REG_LP RDX_LP -# define STRCASECMP_L_NONASCII __strcasecmp_l_nonascii # endif # endif @@ -214,7 +207,6 @@ .align 16 .type STRCMP, @function .globl STRCMP - # ifdef USE_AS_STRCASECMP_L ENTRY (STRCASECMP) movq __libc_tsd_LOCALE@gottpoff(%rip), %rax diff --git a/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S b/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S index 0d691b78a8..33c18a28e8 100644 --- a/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S +++ b/sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S @@ -16,11 +16,20 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> -#include "sysdep.h" +/* Continue building as ISA level 2. We use this as ISA V2 default + because strcmp-sse42 uses pcmpstri (slow on some SSE4.2 + processors) and this implementation is potenially faster than + strcmp-sse42 (aside from the slower page cross case). */ +#if ISA_SHOULD_BUILD (2) -ENTRY ( __strcmp_sse2_unaligned) +# define STRCMP_ISA _sse2_unaligned +# include "strcmp-naming.h" + +# include "sysdep.h" + +ENTRY (STRCMP) movl %edi, %eax xorl %edx, %edx pxor %xmm7, %xmm7 @@ -208,6 +217,5 @@ L(cross_page): L(different): subl %ecx, %eax ret -END (__strcmp_sse2_unaligned) - +END (STRCMP) #endif diff --git a/sysdeps/x86_64/multiarch/strcmp-sse2.S b/sysdeps/x86_64/multiarch/strcmp-sse2.S index b1220231ab..3c69fc1df1 100644 --- a/sysdeps/x86_64/multiarch/strcmp-sse2.S +++ b/sysdeps/x86_64/multiarch/strcmp-sse2.S @@ -16,7 +16,11 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) || IS_IN (rtld) +#include <isa-level.h> + +/* Continue building at ISA level 2 as the strcmp-sse42 is not always + preferable for ISA level == 2 CPUs. */ +#if ISA_SHOULD_BUILD (2) # define STRCMP_ISA _sse2 # include "strcmp-naming.h" diff --git a/sysdeps/x86_64/multiarch/strcmp-sse4_2.S b/sysdeps/x86_64/multiarch/strcmp-sse4_2.S index 963e208ccb..dc6fc90e14 100644 --- a/sysdeps/x86_64/multiarch/strcmp-sse4_2.S +++ b/sysdeps/x86_64/multiarch/strcmp-sse4_2.S @@ -16,7 +16,10 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (2) + # include <sysdep.h> # define STRCMP_ISA _sse42 @@ -1766,7 +1769,6 @@ LABEL(unaligned_table): .int LABEL(ashr_0) - LABEL(unaligned_table) # undef LABEL -# undef GLABEL # undef SECTION # undef movdqa # undef movdqu diff --git a/sysdeps/x86_64/multiarch/strcmp.c b/sysdeps/x86_64/multiarch/strcmp.c index 9c1677724c..fdd5afe3af 100644 --- a/sysdeps/x86_64/multiarch/strcmp.c +++ b/sysdeps/x86_64/multiarch/strcmp.c @@ -26,37 +26,50 @@ # define SYMBOL_NAME strcmp # include <init-arch.h> -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2_unaligned) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden; + +extern __typeof (REDIRECT_NAME) + OPTIMIZE (sse2_unaligned) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; + + static inline void * IFUNC_SELECTOR (void) { - const struct cpu_features* cpu_features = __get_cpu_features (); + const struct cpu_features *cpu_features = __get_cpu_features (); - if (CPU_FEATURE_USABLE_P (cpu_features, AVX2) - && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2) + && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + AVX_Fast_Unaligned_Load, )) { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2)) return OPTIMIZE (evex); if (CPU_FEATURE_USABLE_P (cpu_features, RTM)) return OPTIMIZE (avx2_rtm); - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + Prefer_No_VZEROUPPER, !)) return OPTIMIZE (avx2); } - if (CPU_FEATURE_USABLE_P (cpu_features, SSE4_2) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, SSE4_2) + /* Keep this as runtime check. Some ISA level >= 2 CPUs such as + Tremont, Silvermont, and more check this. */ && !CPU_FEATURES_ARCH_P (cpu_features, Slow_SSE4_2)) return OPTIMIZE (sse42); + /* Keep this as runtime check. The standard SSE2 version has + meaningful optimizations around keeping all loads aligned in the + main loop which can benefit some ISA level >= 2 CPUs. */ if (CPU_FEATURES_ARCH_P (cpu_features, Fast_Unaligned_Load)) return OPTIMIZE (sse2_unaligned); diff --git a/sysdeps/x86_64/multiarch/strlen-avx2.S b/sysdeps/x86_64/multiarch/strlen-avx2.S index 9e36290dd2..0593fb303b 100644 --- a/sysdeps/x86_64/multiarch/strlen-avx2.S +++ b/sysdeps/x86_64/multiarch/strlen-avx2.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (3) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/strlen-evex-base.S b/sysdeps/x86_64/multiarch/strlen-evex-base.S index 278c899691..418e9f8411 100644 --- a/sysdeps/x86_64/multiarch/strlen-evex-base.S +++ b/sysdeps/x86_64/multiarch/strlen-evex-base.S @@ -16,7 +16,11 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +/* UNUSED. Exists purely as reference implementation. */ + +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (4) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/strlen-evex.S b/sysdeps/x86_64/multiarch/strlen-evex.S index 59ade77498..2109ec2f7a 100644 --- a/sysdeps/x86_64/multiarch/strlen-evex.S +++ b/sysdeps/x86_64/multiarch/strlen-evex.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (4) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/strlen-sse2.S b/sysdeps/x86_64/multiarch/strlen-sse2.S index 5be72267d5..a96ccbb2d5 100644 --- a/sysdeps/x86_64/multiarch/strlen-sse2.S +++ b/sysdeps/x86_64/multiarch/strlen-sse2.S @@ -16,15 +16,20 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) || defined STRLEN - -# ifndef STRLEN -# define STRLEN __strlen_sse2 -# endif +#include <isa-level.h> +/* ISA level >= 2 for both strlen and wcslen. wcslen uses `pminud` + which is SSE4.1. strlen doesn't have an ISA level == 2 + implementation so the SSE2 implementation must be built with ISA + level == 2. */ +# if ISA_SHOULD_BUILD (2) # include <sysdep.h> +# ifndef STRLEN +# define STRLEN __strlen_sse2 +# endif + # ifdef AS_WCSLEN # define PMINU pminud # define PCMPEQ pcmpeqd @@ -82,7 +87,7 @@ L(n_nonzero): suffice. */ mov %RSI_LP, %R10_LP sar $62, %R10_LP - jnz __wcslen_sse4_1 + jnz OVERFLOW_STRLEN sal $2, %RSI_LP # endif diff --git a/sysdeps/x86_64/multiarch/strncase_l-avx2-rtm.S b/sysdeps/x86_64/multiarch/strncase_l-avx2-rtm.S index 58c05dcfb8..c2596ab103 100644 --- a/sysdeps/x86_64/multiarch/strncase_l-avx2-rtm.S +++ b/sysdeps/x86_64/multiarch/strncase_l-avx2-rtm.S @@ -1,16 +1,4 @@ -#ifndef STRCMP -# define STRCMP __strncasecmp_l_avx2_rtm -#endif +#define USE_AS_STRCASECMP_L +#define USE_AS_STRNCMP -#define _GLABEL(x) x ## _rtm -#define GLABEL(x) _GLABEL(x) - -#define ZERO_UPPER_VEC_REGISTERS_RETURN \ - ZERO_UPPER_VEC_REGISTERS_RETURN_XTEST - -#define VZEROUPPER_RETURN jmp L(return_vzeroupper) - -#define SECTION(p) p##.avx.rtm -#define OVERFLOW_STRCMP __strcasecmp_l_avx2_rtm - -#include "strncase_l-avx2.S" +#include "strcmp-avx2-rtm.S" diff --git a/sysdeps/x86_64/multiarch/strncase_l-avx2.S b/sysdeps/x86_64/multiarch/strncase_l-avx2.S index 48c0aa21f8..d00687aac5 100644 --- a/sysdeps/x86_64/multiarch/strncase_l-avx2.S +++ b/sysdeps/x86_64/multiarch/strncase_l-avx2.S @@ -16,12 +16,7 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#ifndef STRCMP -# define STRCMP __strncasecmp_l_avx2 -#endif #define USE_AS_STRCASECMP_L #define USE_AS_STRNCMP -#ifndef OVERFLOW_STRCMP -# define OVERFLOW_STRCMP __strcasecmp_l_avx2 -#endif + #include "strcmp-avx2.S" diff --git a/sysdeps/x86_64/multiarch/strncase_l-evex.S b/sysdeps/x86_64/multiarch/strncase_l-evex.S index 8a5af3695c..1a79758065 100644 --- a/sysdeps/x86_64/multiarch/strncase_l-evex.S +++ b/sysdeps/x86_64/multiarch/strncase_l-evex.S @@ -16,10 +16,6 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#ifndef STRCMP -# define STRCMP __strncasecmp_l_evex -#endif -#define OVERFLOW_STRCMP __strcasecmp_l_evex #define USE_AS_STRCASECMP_L #define USE_AS_STRNCMP #include "strcmp-evex.S" diff --git a/sysdeps/x86_64/multiarch/strncmp-avx2-rtm.S b/sysdeps/x86_64/multiarch/strncmp-avx2-rtm.S index 68bad365ba..6bb6be8585 100644 --- a/sysdeps/x86_64/multiarch/strncmp-avx2-rtm.S +++ b/sysdeps/x86_64/multiarch/strncmp-avx2-rtm.S @@ -1,4 +1,2 @@ -#define STRCMP __strncmp_avx2_rtm #define USE_AS_STRNCMP 1 -#define OVERFLOW_STRCMP __strcmp_avx2_rtm #include "strcmp-avx2-rtm.S" diff --git a/sysdeps/x86_64/multiarch/strncmp-avx2.S b/sysdeps/x86_64/multiarch/strncmp-avx2.S index f138e9f1fd..def3509c4c 100644 --- a/sysdeps/x86_64/multiarch/strncmp-avx2.S +++ b/sysdeps/x86_64/multiarch/strncmp-avx2.S @@ -1,4 +1,3 @@ -#define STRCMP __strncmp_avx2 #define USE_AS_STRNCMP 1 -#define OVERFLOW_STRCMP __strcmp_avx2 + #include "strcmp-avx2.S" diff --git a/sysdeps/x86_64/multiarch/strncmp-evex.S b/sysdeps/x86_64/multiarch/strncmp-evex.S index a1d53e8c9f..aa69c18928 100644 --- a/sysdeps/x86_64/multiarch/strncmp-evex.S +++ b/sysdeps/x86_64/multiarch/strncmp-evex.S @@ -1,3 +1,2 @@ -#define STRCMP __strncmp_evex #define USE_AS_STRNCMP 1 #include "strcmp-evex.S" diff --git a/sysdeps/x86_64/multiarch/strncmp.c b/sysdeps/x86_64/multiarch/strncmp.c index 70ae6547c9..4ebe4bde30 100644 --- a/sysdeps/x86_64/multiarch/strncmp.c +++ b/sysdeps/x86_64/multiarch/strncmp.c @@ -26,33 +26,38 @@ # define SYMBOL_NAME strncmp # include <init-arch.h> -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden; + +extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; static inline void * IFUNC_SELECTOR (void) { - const struct cpu_features* cpu_features = __get_cpu_features (); + const struct cpu_features *cpu_features = __get_cpu_features (); - if (CPU_FEATURE_USABLE_P (cpu_features, AVX2) - && CPU_FEATURES_ARCH_P (cpu_features, AVX_Fast_Unaligned_Load)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2) + && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + AVX_Fast_Unaligned_Load, )) { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2)) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX512BW) + && X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, BMI2)) return OPTIMIZE (evex); if (CPU_FEATURE_USABLE_P (cpu_features, RTM)) return OPTIMIZE (avx2_rtm); - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) + if (X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, + Prefer_No_VZEROUPPER, !)) return OPTIMIZE (avx2); } - if (CPU_FEATURE_USABLE_P (cpu_features, SSE4_2) + if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, SSE4_2) && !CPU_FEATURES_ARCH_P (cpu_features, Slow_SSE4_2)) return OPTIMIZE (sse42); diff --git a/sysdeps/x86_64/multiarch/strnlen-avx2.S b/sysdeps/x86_64/multiarch/strnlen-avx2.S index c4062b22f7..c4a12097f0 100644 --- a/sysdeps/x86_64/multiarch/strnlen-avx2.S +++ b/sysdeps/x86_64/multiarch/strnlen-avx2.S @@ -1,4 +1,8 @@ -#define STRLEN __strnlen_avx2 +#ifndef STRNLEN +# define STRNLEN __strnlen_avx2 +#endif + #define USE_AS_STRNLEN 1 +#define STRLEN STRNLEN #include "strlen-avx2.S" diff --git a/sysdeps/x86_64/multiarch/strnlen-evex.S b/sysdeps/x86_64/multiarch/strnlen-evex.S index 722022f303..64a9fc2606 100644 --- a/sysdeps/x86_64/multiarch/strnlen-evex.S +++ b/sysdeps/x86_64/multiarch/strnlen-evex.S @@ -1,4 +1,8 @@ -#define STRLEN __strnlen_evex +#ifndef STRNLEN +# define STRNLEN __strnlen_evex +#endif + #define USE_AS_STRNLEN 1 +#define STRLEN STRNLEN #include "strlen-evex.S" diff --git a/sysdeps/x86_64/multiarch/strnlen-sse2.S b/sysdeps/x86_64/multiarch/strnlen-sse2.S index a50c7d6a28..8841ba9faf 100644 --- a/sysdeps/x86_64/multiarch/strnlen-sse2.S +++ b/sysdeps/x86_64/multiarch/strnlen-sse2.S @@ -16,11 +16,11 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) -# ifndef STRLEN -# define STRLEN __strnlen_sse2 -# endif +#ifndef STRNLEN +# define STRNLEN __strnlen_sse2 #endif -#define AS_STRNLEN +#define AS_STRNLEN 1 +#define STRLEN STRNLEN + #include "strlen-sse2.S" diff --git a/sysdeps/x86_64/multiarch/strrchr-avx2.S b/sysdeps/x86_64/multiarch/strrchr-avx2.S index eb128a2ae3..924171d8e4 100644 --- a/sysdeps/x86_64/multiarch/strrchr-avx2.S +++ b/sysdeps/x86_64/multiarch/strrchr-avx2.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (3) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/strrchr-evex.S b/sysdeps/x86_64/multiarch/strrchr-evex.S index 8014c285b3..992b45fb47 100644 --- a/sysdeps/x86_64/multiarch/strrchr-evex.S +++ b/sysdeps/x86_64/multiarch/strrchr-evex.S @@ -16,7 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (4) # include <sysdep.h> diff --git a/sysdeps/x86_64/multiarch/strrchr-sse2.S b/sysdeps/x86_64/multiarch/strrchr-sse2.S index 6ee7a5e33a..892e861fa8 100644 --- a/sysdeps/x86_64/multiarch/strrchr-sse2.S +++ b/sysdeps/x86_64/multiarch/strrchr-sse2.S @@ -16,36 +16,40 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) +#include <isa-level.h> + +/* ISA level >= 2 because there are no {wcs|str}rchr-sse4 + implementations. */ +#if ISA_SHOULD_BUILD (2) + +# include <sysdep.h> + # ifndef STRRCHR # define STRRCHR __strrchr_sse2 # endif -#endif - -#include <sysdep.h> -#ifdef USE_AS_WCSRCHR -# define PCMPEQ pcmpeqd -# define CHAR_SIZE 4 -# define PMINU pminud -#else -# define PCMPEQ pcmpeqb -# define CHAR_SIZE 1 -# define PMINU pminub -#endif +# ifdef USE_AS_WCSRCHR +# define PCMPEQ pcmpeqd +# define CHAR_SIZE 4 +# define PMINU pminud +# else +# define PCMPEQ pcmpeqb +# define CHAR_SIZE 1 +# define PMINU pminub +# endif -#define PAGE_SIZE 4096 -#define VEC_SIZE 16 +# define PAGE_SIZE 4096 +# define VEC_SIZE 16 .text ENTRY(STRRCHR) movd %esi, %xmm0 movq %rdi, %rax andl $(PAGE_SIZE - 1), %eax -#ifndef USE_AS_WCSRCHR +# ifndef USE_AS_WCSRCHR punpcklbw %xmm0, %xmm0 punpcklwd %xmm0, %xmm0 -#endif +# endif pshufd $0, %xmm0, %xmm0 cmpl $(PAGE_SIZE - VEC_SIZE), %eax ja L(cross_page) @@ -69,9 +73,9 @@ L(cross_page_continue): /* We are off by 3 for wcsrchr if search CHAR is non-zero. If search CHAR is zero we are correct. Either way `andq -CHAR_SIZE, %rax` gets the correct result. */ -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif L(ret0): ret @@ -85,9 +89,9 @@ L(first_vec_x0_test): jz L(ret0) bsrl %eax, %eax addq %r8, %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret .p2align 4 @@ -100,9 +104,9 @@ L(first_vec_x1): jz L(first_vec_x0_test) bsrl %eax, %eax leaq (VEC_SIZE)(%rdi, %rax), %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret .p2align 4 @@ -113,9 +117,9 @@ L(first_vec_x1_test): jz L(first_vec_x0_test) bsrl %eax, %eax leaq (VEC_SIZE)(%rdi, %rax), %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret .p2align 4 @@ -128,9 +132,9 @@ L(first_vec_x2): jz L(first_vec_x1_test) bsrl %eax, %eax leaq (VEC_SIZE * 2)(%rdi, %rax), %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret .p2align 4 @@ -165,27 +169,27 @@ L(first_loop): /* Since SSE2 no pminud so wcsrchr needs seperate logic for detecting zero. Note if this is found to be a bottleneck it may be worth adding an SSE4.1 wcsrchr implementation. */ -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR movaps %xmm5, %xmm6 pxor %xmm8, %xmm8 PCMPEQ %xmm8, %xmm5 PCMPEQ %xmm4, %xmm8 por %xmm5, %xmm8 -#else +# else movaps %xmm5, %xmm6 PMINU %xmm4, %xmm5 -#endif +# endif movaps %xmm4, %xmm9 PCMPEQ %xmm0, %xmm4 PCMPEQ %xmm0, %xmm6 movaps %xmm6, %xmm7 por %xmm4, %xmm6 -#ifndef USE_AS_WCSRCHR +# ifndef USE_AS_WCSRCHR pxor %xmm8, %xmm8 PCMPEQ %xmm5, %xmm8 -#endif +# endif pmovmskb %xmm8, %ecx pmovmskb %xmm6, %eax @@ -219,9 +223,9 @@ L(first_loop_old_match): bsrl %eax, %eax addq %rsi, %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret .p2align 4 @@ -247,9 +251,9 @@ L(new_match): jz L(first_loop_old_match) bsrl %eax, %eax addq %rdi, %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret /* Save minimum state for getting most recent match. We can @@ -267,27 +271,27 @@ L(second_loop): /* Since SSE2 no pminud so wcsrchr needs seperate logic for detecting zero. Note if this is found to be a bottleneck it may be worth adding an SSE4.1 wcsrchr implementation. */ -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR movaps %xmm5, %xmm6 pxor %xmm8, %xmm8 PCMPEQ %xmm8, %xmm5 PCMPEQ %xmm4, %xmm8 por %xmm5, %xmm8 -#else +# else movaps %xmm5, %xmm6 PMINU %xmm4, %xmm5 -#endif +# endif movaps %xmm4, %xmm9 PCMPEQ %xmm0, %xmm4 PCMPEQ %xmm0, %xmm6 movaps %xmm6, %xmm7 por %xmm4, %xmm6 -#ifndef USE_AS_WCSRCHR +# ifndef USE_AS_WCSRCHR pxor %xmm8, %xmm8 PCMPEQ %xmm5, %xmm8 -#endif +# endif pmovmskb %xmm8, %ecx pmovmskb %xmm6, %eax @@ -312,9 +316,9 @@ L(second_loop_old_match): orl %ecx, %eax bsrl %eax, %eax addq %rsi, %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret .p2align 4 @@ -340,9 +344,9 @@ L(second_loop_new_match): jz L(second_loop_old_match) bsrl %eax, %eax addq %rdi, %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif ret .p2align 4,, 4 @@ -366,9 +370,10 @@ L(cross_page): jz L(ret1) bsrl %eax, %eax addq %rdi, %rax -#ifdef USE_AS_WCSRCHR +# ifdef USE_AS_WCSRCHR andq $-CHAR_SIZE, %rax -#endif +# endif L(ret1): ret END(STRRCHR) +#endif diff --git a/sysdeps/x86_64/multiarch/strstr-sse2-unaligned.S b/sysdeps/x86_64/multiarch/strstr-sse2-unaligned.S index c6aa8f45a6..dc342a9f44 100644 --- a/sysdeps/x86_64/multiarch/strstr-sse2-unaligned.S +++ b/sysdeps/x86_64/multiarch/strstr-sse2-unaligned.S @@ -17,6 +17,7 @@ <https://www.gnu.org/licenses/>. */ #include <sysdep.h> +#include "../strchr-isa-default-impl.h" ENTRY(__strstr_sse2_unaligned) movzbl (%rsi), %eax @@ -75,7 +76,7 @@ L(next_pair_index): .p2align 4 L(strchr): movzbl %al, %esi - jmp __strchr_sse2 + jmp DEFAULT_STRCHR .p2align 4 L(pair_loop): diff --git a/sysdeps/x86_64/multiarch/wcschr-avx2.S b/sysdeps/x86_64/multiarch/wcschr-avx2.S index 67726b6837..f404888a93 100644 --- a/sysdeps/x86_64/multiarch/wcschr-avx2.S +++ b/sysdeps/x86_64/multiarch/wcschr-avx2.S @@ -1,3 +1,8 @@ -#define STRCHR __wcschr_avx2 +#ifndef WCSCHR +# define WCSCHR __wcschr_avx2 +#endif + +#define STRCHR WCSCHR #define USE_AS_WCSCHR 1 + #include "strchr-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcschr-evex.S b/sysdeps/x86_64/multiarch/wcschr-evex.S index 7cb8f1e41a..b5ccc59230 100644 --- a/sysdeps/x86_64/multiarch/wcschr-evex.S +++ b/sysdeps/x86_64/multiarch/wcschr-evex.S @@ -1,3 +1,8 @@ -#define STRCHR __wcschr_evex +#ifndef WCSCHR +# define WCSCHR __wcschr_evex +#endif + +#define STRCHR WCSCHR #define USE_AS_WCSCHR 1 + #include "strchr-evex.S" diff --git a/sysdeps/x86_64/multiarch/wcschr-sse2.S b/sysdeps/x86_64/multiarch/wcschr-sse2.S index c872926ba9..1c83957cbc 100644 --- a/sysdeps/x86_64/multiarch/wcschr-sse2.S +++ b/sysdeps/x86_64/multiarch/wcschr-sse2.S @@ -16,13 +16,17 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) + +#include <isa-level.h> + +/* ISA level >= 2 because there is no wcschr-sse4 implementations. */ +#if ISA_SHOULD_BUILD (2) + # ifndef WCSCHR # define WCSCHR __wcschr_sse2 # endif -#endif -#include <sysdep.h> +# include <sysdep.h> .text ENTRY (WCSCHR) @@ -155,3 +159,4 @@ L(return_null): ret END (WCSCHR) +#endif diff --git a/sysdeps/x86_64/multiarch/wcscmp-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcscmp-avx2-rtm.S index d6ca2b8064..f17a8969cb 100644 --- a/sysdeps/x86_64/multiarch/wcscmp-avx2-rtm.S +++ b/sysdeps/x86_64/multiarch/wcscmp-avx2-rtm.S @@ -1,4 +1,3 @@ -#define STRCMP __wcscmp_avx2_rtm #define USE_AS_WCSCMP 1 #include "strcmp-avx2-rtm.S" diff --git a/sysdeps/x86_64/multiarch/wcscmp-avx2.S b/sysdeps/x86_64/multiarch/wcscmp-avx2.S index e5da4da689..0a71f907f0 100644 --- a/sysdeps/x86_64/multiarch/wcscmp-avx2.S +++ b/sysdeps/x86_64/multiarch/wcscmp-avx2.S @@ -1,4 +1,3 @@ -#define STRCMP __wcscmp_avx2 #define USE_AS_WCSCMP 1 #include "strcmp-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcscmp-evex.S b/sysdeps/x86_64/multiarch/wcscmp-evex.S index 42e73e51eb..b0337a8311 100644 --- a/sysdeps/x86_64/multiarch/wcscmp-evex.S +++ b/sysdeps/x86_64/multiarch/wcscmp-evex.S @@ -1,4 +1,3 @@ -#define STRCMP __wcscmp_evex #define USE_AS_WCSCMP 1 #include "strcmp-evex.S" diff --git a/sysdeps/x86_64/multiarch/wcscmp-sse2.S b/sysdeps/x86_64/multiarch/wcscmp-sse2.S index 6cb7d9faf9..3f32e8127d 100644 --- a/sysdeps/x86_64/multiarch/wcscmp-sse2.S +++ b/sysdeps/x86_64/multiarch/wcscmp-sse2.S @@ -16,11 +16,16 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#define USE_AS_WCSCMP -#define STRCMP_ISA _sse2 -#include "strcmp-naming.h" +#include <isa-level.h> -#include <sysdep.h> +/* ISA level >= 2 because there is no wcscmp-sse4 implementations. */ +#if ISA_SHOULD_BUILD (2) +# include <sysdep.h> + +/* Needed to get right name. */ +# define USE_AS_WCSCMP +# define STRCMP_ISA _sse2 +# include "strcmp-naming.h" /* Note: wcscmp uses signed comparison, not unsighed as in strcmp function. */ @@ -949,3 +954,4 @@ L(equal): ret END (STRCMP) +#endif diff --git a/sysdeps/x86_64/multiarch/wcslen-avx2.S b/sysdeps/x86_64/multiarch/wcslen-avx2.S index c9224f1bc5..9784d8f780 100644 --- a/sysdeps/x86_64/multiarch/wcslen-avx2.S +++ b/sysdeps/x86_64/multiarch/wcslen-avx2.S @@ -1,4 +1,8 @@ -#define STRLEN __wcslen_avx2 +#ifndef WCSLEN +# define WCSLEN __wcslen_avx2 +#endif + +#define STRLEN WCSLEN #define USE_AS_WCSLEN 1 #include "strlen-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcslen-evex.S b/sysdeps/x86_64/multiarch/wcslen-evex.S index bdafa83bd5..df21bac63c 100644 --- a/sysdeps/x86_64/multiarch/wcslen-evex.S +++ b/sysdeps/x86_64/multiarch/wcslen-evex.S @@ -1,4 +1,8 @@ -#define STRLEN __wcslen_evex +#ifndef WCSLEN +# define WCSLEN __wcslen_evex +#endif + +#define STRLEN WCSLEN #define USE_AS_WCSLEN 1 #include "strlen-evex.S" diff --git a/sysdeps/x86_64/multiarch/wcslen-sse2.S b/sysdeps/x86_64/multiarch/wcslen-sse2.S index 944c3bd9c6..e9c518a932 100644 --- a/sysdeps/x86_64/multiarch/wcslen-sse2.S +++ b/sysdeps/x86_64/multiarch/wcslen-sse2.S @@ -16,13 +16,16 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) -# ifndef WCSLEN -# define WCSLEN __wcslen_sse2 -# endif +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (1) + +# include <sysdep.h> + +#ifndef WCSLEN +# define WCSLEN __wcslen_sse2 #endif -#include <sysdep.h> .text ENTRY (WCSLEN) @@ -235,3 +238,5 @@ L(exit_tail7): ret END (WCSLEN) + +#endif diff --git a/sysdeps/x86_64/multiarch/wcslen-sse4_1.S b/sysdeps/x86_64/multiarch/wcslen-sse4_1.S index c88e8342a1..126d183e75 100644 --- a/sysdeps/x86_64/multiarch/wcslen-sse4_1.S +++ b/sysdeps/x86_64/multiarch/wcslen-sse4_1.S @@ -1,5 +1,9 @@ -#define AS_WCSLEN -#define STRLEN __wcslen_sse4_1 -#define SECTION(p) p##.sse4.1 +#ifndef WCSLEN +# define WCSLEN __wcslen_sse4_1 +#endif + +#define AS_WCSLEN 1 +#define STRLEN WCSLEN +#define SECTION(p) p##.sse4.1 #include "strlen-sse2.S" diff --git a/sysdeps/x86_64/multiarch/wcsncmp-avx2-rtm.S b/sysdeps/x86_64/multiarch/wcsncmp-avx2-rtm.S index f467582cbe..099a60c48e 100644 --- a/sysdeps/x86_64/multiarch/wcsncmp-avx2-rtm.S +++ b/sysdeps/x86_64/multiarch/wcsncmp-avx2-rtm.S @@ -1,5 +1,3 @@ -#define STRCMP __wcsncmp_avx2_rtm #define USE_AS_STRNCMP 1 #define USE_AS_WCSCMP 1 -#define OVERFLOW_STRCMP __wcscmp_avx2_rtm #include "strcmp-avx2-rtm.S" diff --git a/sysdeps/x86_64/multiarch/wcsncmp-avx2.S b/sysdeps/x86_64/multiarch/wcsncmp-avx2.S index e9ede522b8..fc26b593d0 100644 --- a/sysdeps/x86_64/multiarch/wcsncmp-avx2.S +++ b/sysdeps/x86_64/multiarch/wcsncmp-avx2.S @@ -1,5 +1,4 @@ -#define STRCMP __wcsncmp_avx2 #define USE_AS_STRNCMP 1 #define USE_AS_WCSCMP 1 -#define OVERFLOW_STRCMP __wcscmp_avx2 + #include "strcmp-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcsncmp-evex.S b/sysdeps/x86_64/multiarch/wcsncmp-evex.S index 8a8e310713..d3a92e2000 100644 --- a/sysdeps/x86_64/multiarch/wcsncmp-evex.S +++ b/sysdeps/x86_64/multiarch/wcsncmp-evex.S @@ -1,4 +1,3 @@ -#define STRCMP __wcsncmp_evex #define USE_AS_STRNCMP 1 #define USE_AS_WCSCMP 1 diff --git a/sysdeps/x86_64/multiarch/wcsncmp-generic.c b/sysdeps/x86_64/multiarch/wcsncmp-generic.c index 658d541886..b0cf4e87d5 100644 --- a/sysdeps/x86_64/multiarch/wcsncmp-generic.c +++ b/sysdeps/x86_64/multiarch/wcsncmp-generic.c @@ -16,5 +16,10 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#define WCSNCMP __wcsncmp_generic -#include <wcsmbs/wcsncmp.c> +#include <isa-level.h> +#if ISA_SHOULD_BUILD (2) + +# define WCSNCMP __wcsncmp_generic +# include <wcsmbs/wcsncmp.c> + +#endif diff --git a/sysdeps/x86_64/multiarch/wcsnlen-avx2.S b/sysdeps/x86_64/multiarch/wcsnlen-avx2.S index fac83546b5..12c3a0fd05 100644 --- a/sysdeps/x86_64/multiarch/wcsnlen-avx2.S +++ b/sysdeps/x86_64/multiarch/wcsnlen-avx2.S @@ -1,4 +1,8 @@ -#define STRLEN __wcsnlen_avx2 +#ifndef WCSNLEN +# define WCSNLEN __wcsnlen_avx2 +#endif + +#define STRLEN WCSNLEN #define USE_AS_WCSLEN 1 #define USE_AS_STRNLEN 1 diff --git a/sysdeps/x86_64/multiarch/wcsnlen-evex.S b/sysdeps/x86_64/multiarch/wcsnlen-evex.S index 24773bb4e2..e2aad94c1e 100644 --- a/sysdeps/x86_64/multiarch/wcsnlen-evex.S +++ b/sysdeps/x86_64/multiarch/wcsnlen-evex.S @@ -1,4 +1,8 @@ -#define STRLEN __wcsnlen_evex +#ifndef WCSNLEN +# define WCSNLEN __wcsnlen_evex +#endif + +#define STRLEN WCSNLEN #define USE_AS_WCSLEN 1 #define USE_AS_STRNLEN 1 diff --git a/sysdeps/x86_64/multiarch/wcsnlen-generic.c b/sysdeps/x86_64/multiarch/wcsnlen-generic.c index 2d75da7709..8b466aac2f 100644 --- a/sysdeps/x86_64/multiarch/wcsnlen-generic.c +++ b/sysdeps/x86_64/multiarch/wcsnlen-generic.c @@ -16,13 +16,18 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ +#include <isa-level.h> + +#if ISA_SHOULD_BUILD (1) -#if IS_IN (libc) # include <wchar.h> -# define WCSNLEN __wcsnlen_generic +# ifndef WCSNLEN +# define WCSNLEN __wcsnlen_generic +# endif extern __typeof (wcsnlen) __wcsnlen_generic; -#endif -#include "wcsmbs/wcsnlen.c" +# include "wcsmbs/wcsnlen.c" + +#endif diff --git a/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S b/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S index 17cdedc2a9..8f534102a2 100644 --- a/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S +++ b/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S @@ -1,6 +1,11 @@ +#ifndef WCSNLEN +# define WCSNLEN __wcsnlen_sse4_1 +# define OVERFLOW_STRLEN __wcslen_sse4_1 +#endif + #define AS_WCSLEN #define AS_STRNLEN -#define STRLEN __wcsnlen_sse4_1 +#define STRLEN WCSNLEN #define SECTION(p) p##.sse4.1 #include "strlen-sse2.S" diff --git a/sysdeps/x86_64/multiarch/wcsrchr-avx2.S b/sysdeps/x86_64/multiarch/wcsrchr-avx2.S index cf8a239ab2..6eaf5e090b 100644 --- a/sysdeps/x86_64/multiarch/wcsrchr-avx2.S +++ b/sysdeps/x86_64/multiarch/wcsrchr-avx2.S @@ -1,3 +1,8 @@ -#define STRRCHR __wcsrchr_avx2 +#ifndef WCSRCHR +# define WCSRCHR __wcsrchr_avx2 +#endif + +#define STRRCHR WCSRCHR #define USE_AS_WCSRCHR 1 + #include "strrchr-avx2.S" diff --git a/sysdeps/x86_64/multiarch/wcsrchr-evex.S b/sysdeps/x86_64/multiarch/wcsrchr-evex.S index c64602f7dc..e5c5fe3bf2 100644 --- a/sysdeps/x86_64/multiarch/wcsrchr-evex.S +++ b/sysdeps/x86_64/multiarch/wcsrchr-evex.S @@ -1,3 +1,7 @@ -#define STRRCHR __wcsrchr_evex +#ifndef WCSRCHR +# define WCSRCHR __wcsrchr_evex +#endif + +#define STRRCHR WCSRCHR #define USE_AS_WCSRCHR 1 #include "strrchr-evex.S" diff --git a/sysdeps/x86_64/multiarch/wcsrchr-sse2.S b/sysdeps/x86_64/multiarch/wcsrchr-sse2.S index d9259720f8..21388d900c 100644 --- a/sysdeps/x86_64/multiarch/wcsrchr-sse2.S +++ b/sysdeps/x86_64/multiarch/wcsrchr-sse2.S @@ -16,12 +16,11 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) -# ifndef STRRCHR -# define STRRCHR __wcsrchr_sse2 -# endif +#ifndef WCSRCHR +# define WCSRCHR __wcsrchr_sse2 #endif +#define STRRCHR WCSRCHR #define USE_AS_WCSRCHR 1 #define NO_PMINU 1 diff --git a/sysdeps/x86_64/strcasecmp_l.S b/sysdeps/x86_64/strcasecmp_l.S index 84fd7fdfd3..5afa7ea098 100644 --- a/sysdeps/x86_64/strcasecmp_l.S +++ b/sysdeps/x86_64/strcasecmp_l.S @@ -1,11 +1,35 @@ +/* strcasecmp_l dispatch for RTLD and non-multiarch build + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + /* Symbols = __strcasecmp_l and __strcasecmp. */ -#include "multiarch/strcasecmp_l-sse2.S" +#define DEFAULT_IMPL_V1 "multiarch/strcasecmp_l-sse2.S" +/* This may cause regressions on some processors that heavily prefer + aligned loads or have slow a implementation of the `pcmpstri` + instruction. */ +#define DEFAULT_IMPL_V2 "multiarch/strcasecmp_l-sse4_2.S" +#define DEFAULT_IMPL_V3 "multiarch/strcasecmp_l-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strcasecmp_l-evex.S" -libc_hidden_builtin_def (__strcasecmp_l) +#include "isa-default-impl.h" +libc_hidden_def (__strcasecmp_l) weak_alias (__strcasecmp_l, strcasecmp_l) -libc_hidden_def (strcasecmp_l) -weak_alias (__strcasecmp, strcasecmp) libc_hidden_def (__strcasecmp) +weak_alias (__strcasecmp, strcasecmp) diff --git a/sysdeps/x86_64/strchr-isa-default-impl.h b/sysdeps/x86_64/strchr-isa-default-impl.h new file mode 100644 index 0000000000..0c8cbc6ffb --- /dev/null +++ b/sysdeps/x86_64/strchr-isa-default-impl.h @@ -0,0 +1,28 @@ +/* Set default strchr impl based on ISA level. + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + +#include <isa-level.h> +#if MINIMUM_X86_ISA_LEVEL == 1 || MINIMUM_X86_ISA_LEVEL == 2 +# define DEFAULT_STRCHR __strchr_sse2 +#elif MINIMUM_X86_ISA_LEVEL == 3 +# define DEFAULT_STRCHR __strchr_avx2 +#elif MINIMUM_X86_ISA_LEVEL == 4 +# define DEFAULT_STRCHR __strchr_evex +#else +# error "Unknown default strchr implementation" +#endif diff --git a/sysdeps/x86_64/strchr.S b/sysdeps/x86_64/strchr.S index 77c956c92c..1406c633e8 100644 --- a/sysdeps/x86_64/strchr.S +++ b/sysdeps/x86_64/strchr.S @@ -1,5 +1,4 @@ -/* strchr (str, ch) -- Return pointer to first occurrence of CH in STR. - For AMD x86-64. +/* strchr dispatch for RTLD and non-multiarch build Copyright (C) 2009-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -17,8 +16,13 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ +#define STRCHR strchr + +#define DEFAULT_IMPL_V1 "multiarch/strchr-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/strchr-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strchr-evex.S" + +#include "isa-default-impl.h" -#define STRCHR strchr -#include "multiarch/strchr-sse2.S" weak_alias (strchr, index) libc_hidden_builtin_def (strchr) diff --git a/sysdeps/x86_64/strchrnul.S b/sysdeps/x86_64/strchrnul.S index 508e42db26..f1ef907296 100644 --- a/sysdeps/x86_64/strchrnul.S +++ b/sysdeps/x86_64/strchrnul.S @@ -1,6 +1,4 @@ -/* strchrnul (str, ch) -- Return pointer to first occurrence of CH in STR - or terminating NUL byte. - For AMD x86-64. +/* strchrnul dispatch for RTLD and non-multiarch build Copyright (C) 2009-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -18,7 +16,12 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#define STRCHR __strchrnul -#include "multiarch/strchrnul-sse2.S" +#define STRCHRNUL __strchrnul + +#define DEFAULT_IMPL_V1 "multiarch/strchrnul-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/strchrnul-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strchrnul-evex.S" + +#include "isa-default-impl.h" weak_alias (__strchrnul, strchrnul) diff --git a/sysdeps/x86_64/strcmp.S b/sysdeps/x86_64/strcmp.S index 19e54bd3a7..7c3cf87a42 100644 --- a/sysdeps/x86_64/strcmp.S +++ b/sysdeps/x86_64/strcmp.S @@ -1,4 +1,4 @@ -/* Highly optimized version for x86-64. +/* strcmp dispatch for RTLD and non-multiarch build Copyright (C) 1999-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -18,5 +18,14 @@ /* Symbol = strcmp. */ -#include "multiarch/strcmp-sse2.S" +#define DEFAULT_IMPL_V1 "multiarch/strcmp-sse2.S" +/* strcmp-sse2-unaligned.S is often faster than strcmp-sse42.S and + doesn't have the drawback of using the `pcmpstri` instruction + which can be very slow on some CPUs. */ +#define DEFAULT_IMPL_V2 "multiarch/strcmp-sse2-unaligned.S" +#define DEFAULT_IMPL_V3 "multiarch/strcmp-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strcmp-evex.S" + +#include "isa-default-impl.h" + libc_hidden_builtin_def (strcmp) diff --git a/sysdeps/x86_64/strlen.S b/sysdeps/x86_64/strlen.S index c2f5674f8d..e7cb4b1680 100644 --- a/sysdeps/x86_64/strlen.S +++ b/sysdeps/x86_64/strlen.S @@ -1,4 +1,4 @@ -/* SSE2 version of strlen. +/* strlen dispatch for RTLD and non-multiarch build Copyright (C) 2021-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -17,6 +17,11 @@ <https://www.gnu.org/licenses/>. */ #define STRLEN strlen -#include "multiarch/strlen-sse2.S" + +#define DEFAULT_IMPL_V1 "multiarch/strlen-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/strlen-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strlen-evex.S" + +#include "isa-default-impl.h" libc_hidden_builtin_def (strlen) diff --git a/sysdeps/x86_64/strncase_l.S b/sysdeps/x86_64/strncase_l.S index 3780fc50b1..de28ecf5d4 100644 --- a/sysdeps/x86_64/strncase_l.S +++ b/sysdeps/x86_64/strncase_l.S @@ -1,11 +1,35 @@ +/* strcasecmp_l dispatch for RTLD and non-multiarch build + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + /* Symbols = __strncasecmp_l and __strncasecmp. */ -#include "multiarch/strncase_l-sse2.S" +#define DEFAULT_IMPL_V1 "multiarch/strncase_l-sse2.S" +/* This may cause regressions on some processors that heavily prefer + aligned loads or have slow a implementation of the `pcmpstri` + instruction. */ +#define DEFAULT_IMPL_V2 "multiarch/strncase_l-sse4_2.S" +#define DEFAULT_IMPL_V3 "multiarch/strncase_l-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strncase_l-evex.S" -libc_hidden_builtin_def (__strncasecmp_l) +#include "isa-default-impl.h" +libc_hidden_def (__strncasecmp_l) weak_alias (__strncasecmp_l, strncasecmp_l) -libc_hidden_def (strncasecmp_l) -weak_alias (__strncasecmp, strncasecmp) libc_hidden_def (__strncasecmp) +weak_alias (__strncasecmp, strncasecmp) diff --git a/sysdeps/x86_64/strncmp.S b/sysdeps/x86_64/strncmp.S index 13d9e82ee2..afb251d9fe 100644 --- a/sysdeps/x86_64/strncmp.S +++ b/sysdeps/x86_64/strncmp.S @@ -1,4 +1,31 @@ +/* strncmp dispatch for RTLD and non-multiarch build + Copyright (C) 1999-2022 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 + <https://www.gnu.org/licenses/>. */ + /* Symbol = strncmp. */ -#include "multiarch/strncmp-sse2.S" +#define DEFAULT_IMPL_V1 "multiarch/strncmp-sse2.S" +/* This may cause regressions on some processors that heavily prefer + aligned loads or have slow a implementation of the `pcmpstri` + instruction. */ +#define DEFAULT_IMPL_V2 "multiarch/strncmp-sse4_2.S" +#define DEFAULT_IMPL_V3 "multiarch/strncmp-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strncmp-evex.S" + +#include "isa-default-impl.h" + libc_hidden_builtin_def (strncmp) diff --git a/sysdeps/x86_64/strnlen.S b/sysdeps/x86_64/strnlen.S index 174970d58f..b2c2149e07 100644 --- a/sysdeps/x86_64/strnlen.S +++ b/sysdeps/x86_64/strnlen.S @@ -1,6 +1,29 @@ -#define STRLEN __strnlen -#include "multiarch/strnlen-sse2.S" +/* strnlen dispatch for RTLD and non-multiarch build + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + +#define STRNLEN __strnlen + +#define DEFAULT_IMPL_V1 "multiarch/strnlen-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/strnlen-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strnlen-evex.S" + +#include "isa-default-impl.h" + +weak_alias (__strnlen, strnlen) libc_hidden_def (__strnlen) -weak_alias (__strnlen, strnlen); -libc_hidden_builtin_def (strnlen) +libc_hidden_def (strnlen) diff --git a/sysdeps/x86_64/strrchr.S b/sysdeps/x86_64/strrchr.S index f39da60454..493d370a28 100644 --- a/sysdeps/x86_64/strrchr.S +++ b/sysdeps/x86_64/strrchr.S @@ -1,4 +1,4 @@ -/* strrchr (str, ch) -- Return pointer to last occurrence of CH in STR. +/* strrchr dispatch for RTLD and non-multiarch build Copyright (C) 2013-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -17,6 +17,12 @@ <https://www.gnu.org/licenses/>. */ #define STRRCHR strrchr -#include "multiarch/strrchr-sse2.S" + +#define DEFAULT_IMPL_V1 "multiarch/strrchr-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/strrchr-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strrchr-evex.S" + +#include "isa-default-impl.h" + weak_alias (strrchr, rindex) libc_hidden_builtin_def (strrchr) diff --git a/sysdeps/x86_64/wcschr.S b/sysdeps/x86_64/wcschr.S index 80b12c4286..01a432b899 100644 --- a/sysdeps/x86_64/wcschr.S +++ b/sysdeps/x86_64/wcschr.S @@ -1,4 +1,4 @@ -/* wcschr with SSSE3 +/* wcschr dispatch for RTLD and non-multiarch build Copyright (C) 2011-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -16,9 +16,14 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ - #define WCSCHR __wcschr -#include "multiarch/wcschr-sse2.S" -libc_hidden_def(__wcschr) + +#define DEFAULT_IMPL_V1 "multiarch/wcschr-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/wcschr-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/wcschr-evex.S" + +#include "isa-default-impl.h" + +libc_hidden_def (__wcschr) weak_alias (__wcschr, wcschr) libc_hidden_weak (wcschr) diff --git a/sysdeps/x86_64/wcscmp.S b/sysdeps/x86_64/wcscmp.S index e04cdbf5fe..5d30545fb6 100644 --- a/sysdeps/x86_64/wcscmp.S +++ b/sysdeps/x86_64/wcscmp.S @@ -1,4 +1,4 @@ -/* Optimized wcscmp for x86-64 with SSE2. +/* strlen dispatch for RTLD and non-multiarch build Copyright (C) 2011-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -18,6 +18,11 @@ /* Symbol = __wcscmp. */ -#include "multiarch/wcscmp-sse2.S" +#define DEFAULT_IMPL_V1 "multiarch/wcscmp-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/wcscmp-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/wcscmp-evex.S" + +#include "isa-default-impl.h" + libc_hidden_def (__wcscmp) weak_alias (__wcscmp, wcscmp) diff --git a/sysdeps/x86_64/wcslen.S b/sysdeps/x86_64/wcslen.S index 588a0fbe01..e4e25b5353 100644 --- a/sysdeps/x86_64/wcslen.S +++ b/sysdeps/x86_64/wcslen.S @@ -1,4 +1,4 @@ -/* Optimized wcslen for x86-64 with SSE2. +/* wcslen dispatch for RTLD and non-multiarch build Copyright (C) 2011-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -17,5 +17,18 @@ <https://www.gnu.org/licenses/>. */ #define WCSLEN __wcslen -#include "multiarch/wcslen-sse2.S" -weak_alias(__wcslen, wcslen) + +#define DEFAULT_IMPL_V1 "multiarch/wcslen-sse2.S" +#define DEFAULT_IMPL_V2 "multiarch/wcslen-sse4_1.S" +#define DEFAULT_IMPL_V3 "multiarch/wcslen-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/wcslen-evex.S" + +#include "isa-default-impl.h" + +weak_alias (__wcslen, wcslen) + +#if MINIMUM_X86_ISA_LEVEL == 2 && !IS_IN (rtld) +/* Hidden def so it can be used as overflow fallback in + wcsnlen-sse4_1.S. */ +libc_hidden_def (__wcslen) +#endif diff --git a/sysdeps/x86_64/wcsncmp-generic.c b/sysdeps/x86_64/wcsncmp-generic.c new file mode 100644 index 0000000000..493a6f9b9b --- /dev/null +++ b/sysdeps/x86_64/wcsncmp-generic.c @@ -0,0 +1,29 @@ +/* wcsncmp dispatch for RTLD and non-multiarch .c ISA level 1 build. + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + +/* wcsncmp non-multiarch build is split into two files, + wcsncmp-generic.c and wcsncmp.S. The wcsncmp-generic.c build is for + ISA level <= 1 and just uses wcsmbs/wcsncmp.c. This must be split + into two files because we cannot include C code from assembly or + vice versa. */ + +#include <isa-level.h> + +#if MINIMUM_X86_ISA_LEVEL <= 2 +# include "wcsmbs/wcsncmp.c" +#endif diff --git a/sysdeps/x86_64/wcsncmp.S b/sysdeps/x86_64/wcsncmp.S new file mode 100644 index 0000000000..14f9a1341e --- /dev/null +++ b/sysdeps/x86_64/wcsncmp.S @@ -0,0 +1,40 @@ +/* wcsncmp dispatch for RTLD and non-multiarch .c files + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + +/* wcsncmp non-multiarch build is split into two files, + wcsncmp-generic.c and wcsncmp.S. The wcsncmp.S build is for + ISA level >= 3 uses the optimized assembly implementations in + multiarch/wcsncmp*.S. This must be split into two files because + we cannot include C code from assembly or vice versa. */ + +#include <isa-level.h> + +#if MINIMUM_X86_ISA_LEVEL >= 3 + +/* Symbol = wcsncmp. */ + +# define DEFAULT_IMPL_V3 "multiarch/wcsncmp-avx2.S" +# define DEFAULT_IMPL_V4 "multiarch/wcsncmp-evex.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" + +# include "isa-default-impl.h" + +#endif diff --git a/sysdeps/x86_64/wcsnlen-generic.c b/sysdeps/x86_64/wcsnlen-generic.c new file mode 100644 index 0000000000..ec66511589 --- /dev/null +++ b/sysdeps/x86_64/wcsnlen-generic.c @@ -0,0 +1,29 @@ +/* wcsnlen dispatch for RTLD and non-multiarch .c ISA level 1 build. + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + +/* wcsnlen non-multiarch build is split into two files, + wcsnlen-generic.c and wcsnlen.S. The wcsnlen-generic.c build is for + ISA level <= 1 and just uses wcsmbs/wcsnlen.c. This must be split + into two files because we cannot include C code from assembly or + vice versa. */ + +#include <isa-level.h> + +#if MINIMUM_X86_ISA_LEVEL <= 1 +# include "wcsmbs/wcsnlen.c" +#endif diff --git a/sysdeps/x86_64/wcsnlen.S b/sysdeps/x86_64/wcsnlen.S new file mode 100644 index 0000000000..b30b3f0785 --- /dev/null +++ b/sysdeps/x86_64/wcsnlen.S @@ -0,0 +1,49 @@ +/* wcsnlen dispatch for RTLD and non-multiarch .c files + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + +/* wcsnlen non-multiarch build is split into two files, + wcsnlen-generic.c and wcsnlen.S. The wcsnlen.S build is for + ISA level >= 2 uses the optimized assembly implementations in + multiarch/wcsnlen*.S. This must be split into two files because + we cannot include C code from assembly or vice versa. */ + +#include <isa-level.h> + +#if MINIMUM_X86_ISA_LEVEL >= 2 + +# define WCSNLEN __wcsnlen +/* This symbol must stay linked to the name in wcslen.S. */ +#if IS_IN (rtld) +# define OVERFLOW_STRLEN __wcslen +#else +# define OVERFLOW_STRLEN HIDDEN_JUMPTARGET (__wcslen) +#endif + +# define DEFAULT_IMPL_V2 "multiarch/wcsnlen-sse4_1.S" +# define DEFAULT_IMPL_V3 "multiarch/wcsnlen-avx2.S" +# define DEFAULT_IMPL_V4 "multiarch/wcsnlen-evex.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" + +# include "isa-default-impl.h" + +weak_alias (__wcsnlen, wcsnlen) +libc_hidden_def (__wcsnlen) +#endif diff --git a/sysdeps/x86_64/wcsrchr.S b/sysdeps/x86_64/wcsrchr.S index 1d4b1eb21c..abf828b458 100644 --- a/sysdeps/x86_64/wcsrchr.S +++ b/sysdeps/x86_64/wcsrchr.S @@ -1,4 +1,4 @@ -/* wcsrchr optimized with SSE2. +/* wcsrchr dispatch for RTLD and non-multiarch build Copyright (C) 2011-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -16,5 +16,10 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#define STRRCHR wcsrchr -#include "multiarch/wcsrchr-sse2.S" +#define WCSRCHR wcsrchr + +#define DEFAULT_IMPL_V1 "multiarch/wcsrchr-sse2.S" +#define DEFAULT_IMPL_V3 "multiarch/wcsrchr-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/wcsrchr-evex.S" + +#include "isa-default-impl.h" |