740 lines
22 KiB
Diff
740 lines
22 KiB
Diff
Posted upstream by Intel:
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https://sourceware.org/ml/libc-alpha/2016-01/msg00337.html
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diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile
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index b2e31ef..d234f4a 100644
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--- a/sysdeps/x86_64/multiarch/Makefile
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+++ b/sysdeps/x86_64/multiarch/Makefile
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@@ -7,11 +7,12 @@ ifeq ($(subdir),string)
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sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \
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strcmp-sse2-unaligned strncmp-ssse3 \
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- memcmp-sse4 memcpy-ssse3 \
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- memcpy-sse2-unaligned mempcpy-ssse3 \
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- memmove-ssse3 memcpy-ssse3-back mempcpy-ssse3-back \
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- memmove-avx-unaligned memcpy-avx-unaligned mempcpy-avx-unaligned \
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- memmove-ssse3-back strcasecmp_l-ssse3 \
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+ memcmp-sse4 memcpy-ssse3 memcpy-sse2-unaligned \
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+ memcpy-avx512-no-vzeroupper mempcpy-ssse3 memmove-ssse3 \
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+ memcpy-ssse3-back mempcpy-ssse3-back memmove-avx-unaligned \
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+ memcpy-avx-unaligned mempcpy-avx-unaligned \
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+ mempcpy-avx512-no-vzeroupper memmove-ssse3-back \
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+ memmove-avx512-no-vzeroupper strcasecmp_l-ssse3 \
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strncase_l-ssse3 strcat-ssse3 strncat-ssse3\
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strcpy-ssse3 strncpy-ssse3 stpcpy-ssse3 stpncpy-ssse3 \
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strcpy-sse2-unaligned strncpy-sse2-unaligned \
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diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
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index 5f600dc..d9ff016 100644
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--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
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+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
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@@ -24,7 +24,7 @@
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#include "init-arch.h"
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/* Maximum number of IFUNC implementations. */
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-#define MAX_IFUNC 4
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+#define MAX_IFUNC 5
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/* Fill ARRAY of MAX elements with IFUNC implementations for function
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NAME supported on target machine and return the number of valid
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@@ -46,9 +46,12 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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__memcmp_ssse3)
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IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2))
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- /* Support sysdeps/x86_64/multiarch/memmove_chk.S. */
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+ /* Support sysdeps/x86_64/multiarch/memmove_chk.c. */
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IFUNC_IMPL (i, name, __memmove_chk,
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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+ HAS_ARCH_FEATURE (AVX512F_Usable),
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+ __memmove_chk_avx512_no_vzeroupper)
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+ IFUNC_IMPL_ADD (array, i, __memmove_chk,
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HAS_ARCH_FEATURE (AVX_Usable),
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__memmove_chk_avx_unaligned)
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IFUNC_IMPL_ADD (array, i, __memmove_chk,
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@@ -65,6 +68,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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IFUNC_IMPL_ADD (array, i, memmove,
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HAS_ARCH_FEATURE (AVX_Usable),
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__memmove_avx_unaligned)
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+ IFUNC_IMPL_ADD (array, i, memmove,
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+ HAS_ARCH_FEATURE (AVX512F_Usable),
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+ __memmove_avx512_no_vzeroupper)
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IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSSE3),
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__memmove_ssse3_back)
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IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSSE3),
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@@ -254,6 +260,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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/* Support sysdeps/x86_64/multiarch/memcpy_chk.S. */
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IFUNC_IMPL (i, name, __memcpy_chk,
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IFUNC_IMPL_ADD (array, i, __memcpy_chk,
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+ HAS_ARCH_FEATURE (AVX512F_Usable),
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+ __memcpy_chk_avx512_no_vzeroupper)
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+ IFUNC_IMPL_ADD (array, i, __memcpy_chk,
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HAS_ARCH_FEATURE (AVX_Usable),
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__memcpy_chk_avx_unaligned)
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IFUNC_IMPL_ADD (array, i, __memcpy_chk,
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@@ -274,12 +283,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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__memcpy_ssse3_back)
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IFUNC_IMPL_ADD (array, i, memcpy, HAS_CPU_FEATURE (SSSE3),
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__memcpy_ssse3)
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+ IFUNC_IMPL_ADD (array, i, memcpy,
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+ HAS_ARCH_FEATURE (AVX512F_Usable),
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+ __memcpy_avx512_no_vzeroupper)
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IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2_unaligned)
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IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2))
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/* Support sysdeps/x86_64/multiarch/mempcpy_chk.S. */
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IFUNC_IMPL (i, name, __mempcpy_chk,
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IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
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+ HAS_ARCH_FEATURE (AVX512F_Usable),
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+ __mempcpy_chk_avx512_no_vzeroupper)
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+ IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
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HAS_ARCH_FEATURE (AVX_Usable),
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__mempcpy_chk_avx_unaligned)
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IFUNC_IMPL_ADD (array, i, __mempcpy_chk,
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@@ -294,6 +309,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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/* Support sysdeps/x86_64/multiarch/mempcpy.S. */
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IFUNC_IMPL (i, name, mempcpy,
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IFUNC_IMPL_ADD (array, i, mempcpy,
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+ HAS_ARCH_FEATURE (AVX512F_Usable),
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+ __mempcpy_avx512_no_vzeroupper)
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+ IFUNC_IMPL_ADD (array, i, mempcpy,
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HAS_ARCH_FEATURE (AVX_Usable),
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__mempcpy_avx_unaligned)
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IFUNC_IMPL_ADD (array, i, mempcpy, HAS_CPU_FEATURE (SSSE3),
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diff --git a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
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new file mode 100644
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index 0000000..1b2eb6d
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--- /dev/null
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+++ b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
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@@ -0,0 +1,414 @@
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+/* memcpy optimized with AVX512 for KNL hardware.
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+ Copyright (C) 2016 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdep.h>
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+
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+#if defined HAVE_AVX512_ASM_SUPPORT && IS_IN (libc) \
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+ && (defined SHARED \
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+ || defined USE_AS_MEMMOVE \
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+ || !defined USE_MULTIARCH)
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+
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+#include "asm-syntax.h"
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+#ifndef MEMCPY
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+# define MEMCPY __memcpy_avx512_no_vzeroupper
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+# define MEMCPY_CHK __memcpy_chk_avx512_no_vzeroupper
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+#endif
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+
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+ .section .text,"ax",@progbits
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+#if !defined USE_AS_BCOPY
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+ENTRY (MEMCPY_CHK)
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+ cmpq %rdx, %rcx
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+ jb HIDDEN_JUMPTARGET (__chk_fail)
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+END (MEMCPY_CHK)
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+#endif
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+
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+ENTRY (MEMCPY)
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+ mov %rdi, %rax
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+#ifdef USE_AS_MEMPCPY
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+ add %rdx, %rax
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+#endif
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+ lea (%rsi, %rdx), %rcx
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+ lea (%rdi, %rdx), %r9
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+ cmp $512, %rdx
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+ ja L(512bytesormore)
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+
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+L(check):
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+ cmp $16, %rdx
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+ jbe L(less_16bytes)
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+ cmp $256, %rdx
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+ jb L(less_256bytes)
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+ vmovups (%rsi), %zmm0
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+ vmovups 0x40(%rsi), %zmm1
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+ vmovups 0x80(%rsi), %zmm2
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+ vmovups 0xC0(%rsi), %zmm3
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+ vmovups -0x100(%rcx), %zmm4
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+ vmovups -0xC0(%rcx), %zmm5
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+ vmovups -0x80(%rcx), %zmm6
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+ vmovups -0x40(%rcx), %zmm7
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+ vmovups %zmm0, (%rdi)
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+ vmovups %zmm1, 0x40(%rdi)
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+ vmovups %zmm2, 0x80(%rdi)
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+ vmovups %zmm3, 0xC0(%rdi)
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+ vmovups %zmm4, -0x100(%r9)
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+ vmovups %zmm5, -0xC0(%r9)
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+ vmovups %zmm6, -0x80(%r9)
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+ vmovups %zmm7, -0x40(%r9)
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+ ret
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+
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+L(less_256bytes):
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+ cmp $128, %dl
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+ jb L(less_128bytes)
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+ vmovups (%rsi), %zmm0
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+ vmovups 0x40(%rsi), %zmm1
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+ vmovups -0x80(%rcx), %zmm2
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+ vmovups -0x40(%rcx), %zmm3
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+ vmovups %zmm0, (%rdi)
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+ vmovups %zmm1, 0x40(%rdi)
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+ vmovups %zmm2, -0x80(%r9)
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+ vmovups %zmm3, -0x40(%r9)
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+ ret
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+
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+L(less_128bytes):
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+ cmp $64, %dl
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+ jb L(less_64bytes)
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+ vmovups (%rsi), %zmm0
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+ vmovups -0x40(%rcx), %zmm1
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+ vmovups %zmm0, (%rdi)
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+ vmovups %zmm1, -0x40(%r9)
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+ ret
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+
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+L(less_64bytes):
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+ cmp $32, %dl
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+ jb L(less_32bytes)
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+ vmovdqu (%rsi), %ymm0
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+ vmovdqu -0x20(%rcx), %ymm1
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+ vmovdqu %ymm0, (%rdi)
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+ vmovdqu %ymm1, -0x20(%r9)
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+ ret
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+
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+L(less_32bytes):
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+ vmovdqu (%rsi), %xmm0
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+ vmovdqu -0x10(%rcx), %xmm1
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+ vmovdqu %xmm0, (%rdi)
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+ vmovdqu %xmm1, -0x10(%r9)
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+ ret
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+
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+L(less_16bytes):
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+ cmp $8, %dl
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+ jb L(less_8bytes)
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+ movq (%rsi), %rsi
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+ movq -0x8(%rcx), %rcx
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+ movq %rsi, (%rdi)
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+ movq %rcx, -0x8(%r9)
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+ ret
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+
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+L(less_8bytes):
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+ cmp $4, %dl
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+ jb L(less_4bytes)
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+ mov (%rsi), %esi
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+ mov -0x4(%rcx), %ecx
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+ mov %esi, (%rdi)
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+ mov %ecx, -0x4(%r9)
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+ ret
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+
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+L(less_4bytes):
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+ cmp $2, %dl
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+ jb L(less_2bytes)
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+ mov (%rsi), %si
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+ mov -0x2(%rcx), %cx
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+ mov %si, (%rdi)
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+ mov %cx, -0x2(%r9)
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+ ret
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+
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+L(less_2bytes):
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+ cmp $1, %dl
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+ jb L(less_1bytes)
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+ mov (%rsi), %cl
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+ mov %cl, (%rdi)
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+L(less_1bytes):
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+ ret
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+
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+L(512bytesormore):
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+#ifdef SHARED_CACHE_SIZE_HALF
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+ mov $SHARED_CACHE_SIZE_HALF, %r8
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+#else
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+ mov __x86_shared_cache_size_half(%rip), %r8
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+#endif
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+ cmp %r8, %rdx
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+ jae L(preloop_large)
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+ cmp $1024, %rdx
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+ ja L(1024bytesormore)
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+ vmovups (%rsi), %zmm0
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+ vmovups 0x40(%rsi), %zmm1
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+ vmovups 0x80(%rsi), %zmm2
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+ vmovups 0xC0(%rsi), %zmm3
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+ vmovups 0x100(%rsi), %zmm4
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+ vmovups 0x140(%rsi), %zmm5
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+ vmovups 0x180(%rsi), %zmm6
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+ vmovups 0x1C0(%rsi), %zmm7
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+ vmovups -0x200(%rcx), %zmm8
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+ vmovups -0x1C0(%rcx), %zmm9
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+ vmovups -0x180(%rcx), %zmm10
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+ vmovups -0x140(%rcx), %zmm11
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+ vmovups -0x100(%rcx), %zmm12
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+ vmovups -0xC0(%rcx), %zmm13
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+ vmovups -0x80(%rcx), %zmm14
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+ vmovups -0x40(%rcx), %zmm15
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+ vmovups %zmm0, (%rdi)
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+ vmovups %zmm1, 0x40(%rdi)
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+ vmovups %zmm2, 0x80(%rdi)
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+ vmovups %zmm3, 0xC0(%rdi)
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+ vmovups %zmm4, 0x100(%rdi)
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+ vmovups %zmm5, 0x140(%rdi)
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+ vmovups %zmm6, 0x180(%rdi)
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+ vmovups %zmm7, 0x1C0(%rdi)
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+ vmovups %zmm8, -0x200(%r9)
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+ vmovups %zmm9, -0x1C0(%r9)
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+ vmovups %zmm10, -0x180(%r9)
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+ vmovups %zmm11, -0x140(%r9)
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+ vmovups %zmm12, -0x100(%r9)
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+ vmovups %zmm13, -0xC0(%r9)
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+ vmovups %zmm14, -0x80(%r9)
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+ vmovups %zmm15, -0x40(%r9)
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+ ret
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+
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+#ifndef USE_AS_MEMMOVE
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+L(1024bytesormore):
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+ sub $0x200, %r9
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+
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+/* Loop with unaligned memory access. */
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+L(gobble_512bytes_loop):
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+ vmovups (%rsi), %zmm0
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+ vmovups 0x40(%rsi), %zmm1
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+ vmovups 0x80(%rsi), %zmm2
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+ vmovups 0xC0(%rsi), %zmm3
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+ vmovups 0x100(%rsi), %zmm4
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+ vmovups 0x140(%rsi), %zmm5
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+ vmovups 0x180(%rsi), %zmm6
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+ vmovups 0x1C0(%rsi), %zmm7
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+ add $0x200, %rsi
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+ vmovups %zmm0, (%rdi)
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+ vmovups %zmm1, 0x40(%rdi)
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+ vmovups %zmm2, 0x80(%rdi)
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+ vmovups %zmm3, 0xC0(%rdi)
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+ vmovups %zmm4, 0x100(%rdi)
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+ vmovups %zmm5, 0x140(%rdi)
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+ vmovups %zmm6, 0x180(%rdi)
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+ vmovups %zmm7, 0x1C0(%rdi)
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+ add $0x200, %rdi
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+ cmp %r9, %rdi
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+ jb L(gobble_512bytes_loop)
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+ vmovups -0x200(%rcx), %zmm0
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+ vmovups -0x1C0(%rcx), %zmm1
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+ vmovups -0x180(%rcx), %zmm2
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+ vmovups -0x140(%rcx), %zmm3
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+ vmovups -0x100(%rcx), %zmm4
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+ vmovups -0xC0(%rcx), %zmm5
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+ vmovups -0x80(%rcx), %zmm6
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+ vmovups -0x40(%rcx), %zmm7
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+ vmovups %zmm0, (%r9)
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+ vmovups %zmm1, 0x40(%r9)
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+ vmovups %zmm2, 0x80(%r9)
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+ vmovups %zmm3, 0xC0(%r9)
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+ vmovups %zmm4, 0x100(%r9)
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+ vmovups %zmm5, 0x140(%r9)
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+ vmovups %zmm6, 0x180(%r9)
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+ vmovups %zmm7, 0x1C0(%r9)
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+ ret
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+
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+/* Align destination for access with non-temporal stores in the loop. */
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+L(preloop_large):
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+ mov %rdi, %r8
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+ and $-0x80, %rdi
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+ add $0x80, %rdi
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+ sub %rdi, %r8
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+ vmovups (%rsi), %zmm0
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+ vmovups 0x40(%rsi), %zmm1
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+ vmovups %zmm0, (%rax)
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+ vmovups %zmm1, 0x40(%rax)
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+ sub %r8, %rsi
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+ sub $0x100, %r9
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+ prefetcht1 (%rsi)
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+ prefetcht1 0x40(%rsi)
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+ prefetcht1 0x80(%rsi)
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+ prefetcht1 0xC0(%rsi)
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+L(gobble_256bytes_nt_loop):
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+ prefetcht1 0x100(%rsi)
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+ prefetcht1 0x140(%rsi)
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+ prefetcht1 0x180(%rsi)
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+ prefetcht1 0x1C0(%rsi)
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+ vmovups (%rsi), %zmm0
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+ vmovups 0x40(%rsi), %zmm1
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+ vmovups 0x80(%rsi), %zmm2
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+ vmovups 0xC0(%rsi), %zmm3
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+ add $0x100, %rsi
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+ vmovntdq %zmm0, (%rdi)
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+ vmovntdq %zmm1, 0x40(%rdi)
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+ vmovntdq %zmm2, 0x80(%rdi)
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+ vmovntdq %zmm3, 0xC0(%rdi)
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+ add $0x100, %rdi
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+ cmp %r9, %rdi
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+ jb L(gobble_256bytes_nt_loop)
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+ sfence
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+ vmovups -0x100(%rcx), %zmm0
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+ vmovups -0xC0(%rcx), %zmm1
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+ vmovups -0x80(%rcx), %zmm2
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+ vmovups -0x40(%rcx), %zmm3
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+ vmovups %zmm0, (%r9)
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+ vmovups %zmm1, 0x40(%r9)
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+ vmovups %zmm2, 0x80(%r9)
|
|
+ vmovups %zmm3, 0xC0(%r9)
|
|
+ ret
|
|
+#else
|
|
+/* Memmove implementation. */
|
|
+L(1024bytesormore):
|
|
+ cmp %rsi, %rdi
|
|
+ ja L(1024bytesormore_bkw)
|
|
+ prefetcht1 (%rsi)
|
|
+ prefetcht1 0x40(%rsi)
|
|
+ prefetcht1 0x80(%rsi)
|
|
+ prefetcht1 0xC0(%rsi)
|
|
+
|
|
+/* Loop with unaligned memory access. */
|
|
+L(gobble_256bytes_loop):
|
|
+ vmovups (%rsi), %zmm0
|
|
+ prefetcht1 0x100(%rsi)
|
|
+ vmovups 0x40(%rsi), %zmm1
|
|
+ prefetcht1 0x140(%rsi)
|
|
+ vmovups 0x80(%rsi), %zmm2
|
|
+ prefetcht1 0x180(%rsi)
|
|
+ vmovups 0xC0(%rsi), %zmm3
|
|
+ prefetcht1 0x1C0(%rsi)
|
|
+ vmovups %zmm0, (%rdi)
|
|
+ vmovups %zmm1, 0x40(%rdi)
|
|
+ vmovups %zmm2, 0x80(%rdi)
|
|
+ vmovups %zmm3, 0xC0(%rdi)
|
|
+ sub $256, %rdx
|
|
+ add $256, %rsi
|
|
+ add $256, %rdi
|
|
+ cmp $256, %rdx
|
|
+ jae L(gobble_256bytes_loop)
|
|
+ jmp L(check)
|
|
+
|
|
+L(1024bytesormore_bkw):
|
|
+ prefetcht1 -0x100(%rcx)
|
|
+ prefetcht1 -0xC0(%rcx)
|
|
+ prefetcht1 -0x80(%rcx)
|
|
+ prefetcht1 -0x40(%rcx)
|
|
+
|
|
+/* Loop with unaligned memory access. */
|
|
+L(gobble_256bytes_loop_bkw):
|
|
+ vmovups -0x100(%rcx), %zmm0
|
|
+ prefetcht1 -0x200(%rcx)
|
|
+ vmovups -0xC0(%rcx), %zmm1
|
|
+ prefetcht1 -0x1C0(%rcx)
|
|
+ vmovups -0x80(%rcx), %zmm2
|
|
+ prefetcht1 -0x180(%rcx)
|
|
+ vmovups -0x40(%rcx), %zmm3
|
|
+ prefetcht1 -0x140(%rcx)
|
|
+ vmovups %zmm0, -0x100(%r9)
|
|
+ vmovups %zmm1, -0xC0(%r9)
|
|
+ vmovups %zmm2, -0x80(%r9)
|
|
+ vmovups %zmm3, -0x40(%r9)
|
|
+ sub $256, %rdx
|
|
+ sub $256, %rcx
|
|
+ sub $256, %r9
|
|
+ cmp $256, %rdx
|
|
+ jae L(gobble_256bytes_loop_bkw)
|
|
+ jmp L(check)
|
|
+
|
|
+L(preloop_large):
|
|
+ cmp %rsi, %rdi
|
|
+ ja L(preloop_large_bkw)
|
|
+ vmovups (%rsi), %zmm4
|
|
+ vmovups 0x40(%rsi), %zmm5
|
|
+
|
|
+/* Align destination for access with non-temporal stores in the loop. */
|
|
+ mov %rdi, %r8
|
|
+ and $-0x80, %rdi
|
|
+ add $0x80, %rdi
|
|
+ sub %rdi, %r8
|
|
+ sub %r8, %rsi
|
|
+ add %r8, %rdx
|
|
+ prefetcht1 (%rsi)
|
|
+ prefetcht1 0x40(%rsi)
|
|
+ prefetcht1 0x80(%rsi)
|
|
+ prefetcht1 0xC0(%rsi)
|
|
+L(gobble_256bytes_nt_loop):
|
|
+ vmovups (%rsi), %zmm0
|
|
+ prefetcht1 0x100(%rsi)
|
|
+ vmovups 0x40(%rsi), %zmm1
|
|
+ prefetcht1 0x140(%rsi)
|
|
+ vmovups 0x80(%rsi), %zmm2
|
|
+ prefetcht1 0x180(%rsi)
|
|
+ vmovups 0xC0(%rsi), %zmm3
|
|
+ prefetcht1 0x1C0(%rsi)
|
|
+ vmovntdq %zmm0, (%rdi)
|
|
+ vmovntdq %zmm1, 0x40(%rdi)
|
|
+ vmovntdq %zmm2, 0x80(%rdi)
|
|
+ vmovntdq %zmm3, 0xC0(%rdi)
|
|
+ sub $256, %rdx
|
|
+ add $256, %rsi
|
|
+ add $256, %rdi
|
|
+ cmp $256, %rdx
|
|
+ ja L(gobble_256bytes_nt_loop)
|
|
+ sfence
|
|
+ vmovups %zmm4, (%rax)
|
|
+ vmovups %zmm5, 0x40(%rax)
|
|
+ jmp L(check)
|
|
+
|
|
+L(preloop_large_bkw):
|
|
+ vmovups -0x80(%rcx), %zmm4
|
|
+ vmovups -0x40(%rcx), %zmm5
|
|
+
|
|
+/* Align end of destination for access with non-temporal stores. */
|
|
+ mov %r9, %r8
|
|
+ and $-0x80, %r9
|
|
+ sub %r9, %r8
|
|
+ sub %r8, %rcx
|
|
+ sub %r8, %rdx
|
|
+ add %r9, %r8
|
|
+ prefetcht1 -0x100(%rcx)
|
|
+ prefetcht1 -0xC0(%rcx)
|
|
+ prefetcht1 -0x80(%rcx)
|
|
+ prefetcht1 -0x40(%rcx)
|
|
+L(gobble_256bytes_nt_loop_bkw):
|
|
+ vmovups -0x100(%rcx), %zmm0
|
|
+ prefetcht1 -0x200(%rcx)
|
|
+ vmovups -0xC0(%rcx), %zmm1
|
|
+ prefetcht1 -0x1C0(%rcx)
|
|
+ vmovups -0x80(%rcx), %zmm2
|
|
+ prefetcht1 -0x180(%rcx)
|
|
+ vmovups -0x40(%rcx), %zmm3
|
|
+ prefetcht1 -0x140(%rcx)
|
|
+ vmovntdq %zmm0, -0x100(%r9)
|
|
+ vmovntdq %zmm1, -0xC0(%r9)
|
|
+ vmovntdq %zmm2, -0x80(%r9)
|
|
+ vmovntdq %zmm3, -0x40(%r9)
|
|
+ sub $256, %rdx
|
|
+ sub $256, %rcx
|
|
+ sub $256, %r9
|
|
+ cmp $256, %rdx
|
|
+ ja L(gobble_256bytes_nt_loop_bkw)
|
|
+ sfence
|
|
+ vmovups %zmm4, -0x80(%r8)
|
|
+ vmovups %zmm5, -0x40(%r8)
|
|
+ jmp L(check)
|
|
+#endif
|
|
+END (MEMCPY)
|
|
+#endif
|
|
diff --git a/sysdeps/x86_64/multiarch/memcpy.S b/sysdeps/x86_64/multiarch/memcpy.S
|
|
index 27fca29..64a1bcd 100644
|
|
--- a/sysdeps/x86_64/multiarch/memcpy.S
|
|
+++ b/sysdeps/x86_64/multiarch/memcpy.S
|
|
@@ -30,19 +30,27 @@
|
|
ENTRY(__new_memcpy)
|
|
.type __new_memcpy, @gnu_indirect_function
|
|
LOAD_RTLD_GLOBAL_RO_RDX
|
|
- leaq __memcpy_avx_unaligned(%rip), %rax
|
|
+#ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ HAS_ARCH_FEATURE (AVX512F_Usable)
|
|
+ jz 1f
|
|
+ HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
|
|
+ jz 1f
|
|
+ leaq __memcpy_avx512_no_vzeroupper(%rip), %rax
|
|
+ ret
|
|
+#endif
|
|
+1: leaq __memcpy_avx_unaligned(%rip), %rax
|
|
HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load)
|
|
- jz 1f
|
|
+ jz 2f
|
|
ret
|
|
-1: leaq __memcpy_sse2(%rip), %rax
|
|
+2: leaq __memcpy_sse2(%rip), %rax
|
|
HAS_ARCH_FEATURE (Slow_BSF)
|
|
- jnz 2f
|
|
+ jnz 3f
|
|
leaq __memcpy_sse2_unaligned(%rip), %rax
|
|
ret
|
|
-2: HAS_CPU_FEATURE (SSSE3)
|
|
- jz 3f
|
|
+3: HAS_CPU_FEATURE (SSSE3)
|
|
+ jz 4f
|
|
leaq __memcpy_ssse3(%rip), %rax
|
|
-3: ret
|
|
+4: ret
|
|
END(__new_memcpy)
|
|
|
|
# undef ENTRY
|
|
diff --git a/sysdeps/x86_64/multiarch/memcpy_chk.S b/sysdeps/x86_64/multiarch/memcpy_chk.S
|
|
index 6476c62..a0d56d4 100644
|
|
--- a/sysdeps/x86_64/multiarch/memcpy_chk.S
|
|
+++ b/sysdeps/x86_64/multiarch/memcpy_chk.S
|
|
@@ -30,7 +30,15 @@
|
|
ENTRY(__memcpy_chk)
|
|
.type __memcpy_chk, @gnu_indirect_function
|
|
LOAD_RTLD_GLOBAL_RO_RDX
|
|
- leaq __memcpy_chk_sse2(%rip), %rax
|
|
+#ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ HAS_ARCH_FEATURE (AVX512F_Usable)
|
|
+ jz 1f
|
|
+# HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
|
|
+# jz 1f
|
|
+ leaq __memcpy_avx512_no_vzeroupper(%rip), %rax
|
|
+ ret
|
|
+#endif
|
|
+1: leaq __memcpy_chk_sse2(%rip), %rax
|
|
HAS_CPU_FEATURE (SSSE3)
|
|
jz 2f
|
|
leaq __memcpy_chk_ssse3(%rip), %rax
|
|
diff --git a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
|
|
new file mode 100644
|
|
index 0000000..518d1fe
|
|
--- /dev/null
|
|
+++ b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
|
|
@@ -0,0 +1,22 @@
|
|
+/* memmove optimized with AVX512 for KNL hardware.
|
|
+ Copyright (C) 2016 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <http://www.gnu.org/licenses/>. */
|
|
+
|
|
+#define USE_AS_MEMMOVE
|
|
+#define MEMCPY __memmove_avx512_no_vzeroupper
|
|
+#define MEMCPY_CHK __memmove_chk_avx512_no_vzeroupper
|
|
+#include "memcpy-avx512-no-vzeroupper.S"
|
|
diff --git a/sysdeps/x86_64/multiarch/memmove.c b/sysdeps/x86_64/multiarch/memmove.c
|
|
index e844531..8da5640 100644
|
|
--- a/sysdeps/x86_64/multiarch/memmove.c
|
|
+++ b/sysdeps/x86_64/multiarch/memmove.c
|
|
@@ -36,6 +36,9 @@ extern __typeof (__redirect_memmove) __memmove_sse2 attribute_hidden;
|
|
extern __typeof (__redirect_memmove) __memmove_ssse3 attribute_hidden;
|
|
extern __typeof (__redirect_memmove) __memmove_ssse3_back attribute_hidden;
|
|
extern __typeof (__redirect_memmove) __memmove_avx_unaligned attribute_hidden;
|
|
+# ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ extern __typeof (__redirect_memmove) __memmove_avx512_no_vzeroupper attribute_hidden;
|
|
+# endif
|
|
|
|
#endif
|
|
|
|
@@ -49,12 +52,18 @@ extern __typeof (__redirect_memmove) __memmove_avx_unaligned attribute_hidden;
|
|
ifunc symbol properly. */
|
|
extern __typeof (__redirect_memmove) __libc_memmove;
|
|
libc_ifunc (__libc_memmove,
|
|
- HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load)
|
|
+#ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ HAS_ARCH_FEATURE (AVX512F_Usable)
|
|
+ && HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
|
|
+ ? __memmove_avx512_no_vzeroupper
|
|
+ :
|
|
+#endif
|
|
+ (HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load)
|
|
? __memmove_avx_unaligned
|
|
: (HAS_CPU_FEATURE (SSSE3)
|
|
? (HAS_ARCH_FEATURE (Fast_Copy_Backward)
|
|
? __memmove_ssse3_back : __memmove_ssse3)
|
|
- : __memmove_sse2));
|
|
+ : __memmove_sse2)));
|
|
|
|
strong_alias (__libc_memmove, memmove)
|
|
|
|
diff --git a/sysdeps/x86_64/multiarch/memmove_chk.c b/sysdeps/x86_64/multiarch/memmove_chk.c
|
|
index 60ed98f..f64da63 100644
|
|
--- a/sysdeps/x86_64/multiarch/memmove_chk.c
|
|
+++ b/sysdeps/x86_64/multiarch/memmove_chk.c
|
|
@@ -26,10 +26,19 @@ extern __typeof (__memmove_chk) __memmove_chk_sse2 attribute_hidden;
|
|
extern __typeof (__memmove_chk) __memmove_chk_ssse3 attribute_hidden;
|
|
extern __typeof (__memmove_chk) __memmove_chk_ssse3_back attribute_hidden;
|
|
extern __typeof (__memmove_chk) __memmove_chk_avx_unaligned attribute_hidden;
|
|
+# ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ extern __typeof (__memmove_chk) __memmove_chk_avx512_no_vzeroupper attribute_hidden;
|
|
+# endif
|
|
|
|
#include "debug/memmove_chk.c"
|
|
|
|
libc_ifunc (__memmove_chk,
|
|
+#ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ HAS_ARCH_FEATURE (AVX512F_Usable)
|
|
+ && HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
|
|
+ ? __memmove_chk_avx512_no_vzeroupper
|
|
+ :
|
|
+#endif
|
|
HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load) ? __memmove_chk_avx_unaligned :
|
|
(HAS_CPU_FEATURE (SSSE3)
|
|
? (HAS_ARCH_FEATURE (Fast_Copy_Backward)
|
|
diff --git a/sysdeps/x86_64/multiarch/mempcpy-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/mempcpy-avx512-no-vzeroupper.S
|
|
new file mode 100644
|
|
index 0000000..ccffb31
|
|
--- /dev/null
|
|
+++ b/sysdeps/x86_64/multiarch/mempcpy-avx512-no-vzeroupper.S
|
|
@@ -0,0 +1,22 @@
|
|
+/* mempcpy optimized with AVX512 for KNL hardware.
|
|
+ Copyright (C) 2016 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <http://www.gnu.org/licenses/>. */
|
|
+
|
|
+#define USE_AS_MEMPCPY
|
|
+#define MEMCPY __mempcpy_avx512_no_vzeroupper
|
|
+#define MEMCPY_CHK __mempcpy_chk_avx512_no_vzeroupper
|
|
+#include "memcpy-avx512-no-vzeroupper.S"
|
|
diff --git a/sysdeps/x86_64/multiarch/mempcpy.S b/sysdeps/x86_64/multiarch/mempcpy.S
|
|
index 96ffb28..ed78623 100644
|
|
--- a/sysdeps/x86_64/multiarch/mempcpy.S
|
|
+++ b/sysdeps/x86_64/multiarch/mempcpy.S
|
|
@@ -28,7 +28,15 @@
|
|
ENTRY(__mempcpy)
|
|
.type __mempcpy, @gnu_indirect_function
|
|
LOAD_RTLD_GLOBAL_RO_RDX
|
|
- leaq __mempcpy_sse2(%rip), %rax
|
|
+#ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ HAS_ARCH_FEATURE (AVX512F_Usable)
|
|
+ jz 1f
|
|
+ HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
|
|
+ jz 1f
|
|
+ leaq __mempcpy_avx512_no_vzeroupper(%rip), %rax
|
|
+ ret
|
|
+#endif
|
|
+1: leaq __mempcpy_sse2(%rip), %rax
|
|
HAS_CPU_FEATURE (SSSE3)
|
|
jz 2f
|
|
leaq __mempcpy_ssse3(%rip), %rax
|
|
diff --git a/sysdeps/x86_64/multiarch/mempcpy_chk.S b/sysdeps/x86_64/multiarch/mempcpy_chk.S
|
|
index ae7a765..6e8a89d 100644
|
|
--- a/sysdeps/x86_64/multiarch/mempcpy_chk.S
|
|
+++ b/sysdeps/x86_64/multiarch/mempcpy_chk.S
|
|
@@ -30,7 +30,15 @@
|
|
ENTRY(__mempcpy_chk)
|
|
.type __mempcpy_chk, @gnu_indirect_function
|
|
LOAD_RTLD_GLOBAL_RO_RDX
|
|
- leaq __mempcpy_chk_sse2(%rip), %rax
|
|
+#ifdef HAVE_AVX512_ASM_SUPPORT
|
|
+ HAS_ARCH_FEATURE (AVX512F_Usable)
|
|
+ jz 1f
|
|
+ HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
|
|
+ jz 1f
|
|
+ leaq __mempcpy_chk_avx512_no_vzeroupper(%rip), %rax
|
|
+ ret
|
|
+#endif
|
|
+1: leaq __mempcpy_chk_sse2(%rip), %rax
|
|
HAS_CPU_FEATURE (SSSE3)
|
|
jz 2f
|
|
leaq __mempcpy_chk_ssse3(%rip), %rax
|