diff options
| -rw-r--r-- | sysdeps/x86_64/multiarch/Makefile | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-impl-list.c | 4 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/ifunc-memcmp.h | 4 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/memcmp-sse4.S | 803 |
4 files changed, 0 insertions, 813 deletions
diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile index b573966966..0400ea332b 100644 --- a/sysdeps/x86_64/multiarch/Makefile +++ b/sysdeps/x86_64/multiarch/Makefile @@ -11,7 +11,6 @@ sysdep_routines += \ memcmp-avx2-movbe-rtm \ memcmp-evex-movbe \ memcmp-sse2 \ - memcmp-sse4 \ memcmpeq-avx2 \ memcmpeq-avx2-rtm \ memcmpeq-evex \ @@ -164,7 +163,6 @@ sysdep_routines += \ wmemcmp-avx2-movbe-rtm \ wmemcmp-evex-movbe \ wmemcmp-sse2 \ - wmemcmp-sse4 \ # sysdep_routines endif diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index c6008a73ed..a8afcf81bb 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -96,8 +96,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (BMI2) && CPU_FEATURE_USABLE (MOVBE)), __memcmp_evex_movbe) - IFUNC_IMPL_ADD (array, i, memcmp, CPU_FEATURE_USABLE (SSE4_1), - __memcmp_sse4_1) IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2)) #ifdef SHARED @@ -809,8 +807,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, && CPU_FEATURE_USABLE (BMI2) && CPU_FEATURE_USABLE (MOVBE)), __wmemcmp_evex_movbe) - IFUNC_IMPL_ADD (array, i, wmemcmp, CPU_FEATURE_USABLE (SSE4_1), - __wmemcmp_sse4_1) IFUNC_IMPL_ADD (array, i, wmemcmp, 1, __wmemcmp_sse2)) /* Support sysdeps/x86_64/multiarch/wmemset.c. */ diff --git a/sysdeps/x86_64/multiarch/ifunc-memcmp.h b/sysdeps/x86_64/multiarch/ifunc-memcmp.h index 44759a3ad5..c743970fe3 100644 --- a/sysdeps/x86_64/multiarch/ifunc-memcmp.h +++ b/sysdeps/x86_64/multiarch/ifunc-memcmp.h @@ -20,7 +20,6 @@ # include <init-arch.h> extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE (sse4_1) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_movbe) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_movbe_rtm) attribute_hidden; extern __typeof (REDIRECT_NAME) OPTIMIZE (evex_movbe) attribute_hidden; @@ -46,8 +45,5 @@ IFUNC_SELECTOR (void) return OPTIMIZE (avx2_movbe); } - if (CPU_FEATURE_USABLE_P (cpu_features, SSE4_1)) - return OPTIMIZE (sse4_1); - return OPTIMIZE (sse2); } diff --git a/sysdeps/x86_64/multiarch/memcmp-sse4.S b/sysdeps/x86_64/multiarch/memcmp-sse4.S deleted file mode 100644 index cd57c1e2c7..0000000000 --- a/sysdeps/x86_64/multiarch/memcmp-sse4.S +++ /dev/null @@ -1,803 +0,0 @@ -/* memcmp with SSE4.1, wmemcmp with SSE4.1 - Copyright (C) 2010-2022 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/>. */ - -#if IS_IN (libc) - -# include <sysdep.h> - -# ifndef MEMCMP -# define MEMCMP __memcmp_sse4_1 -# endif - -#ifdef USE_AS_WMEMCMP -# define CMPEQ pcmpeqd -# define CHAR_SIZE 4 -#else -# define CMPEQ pcmpeqb -# define CHAR_SIZE 1 -#endif - - -/* Warning! - wmemcmp has to use SIGNED comparison for elements. - memcmp has to use UNSIGNED comparison for elemnts. -*/ - - .section .text.sse4.1,"ax",@progbits -ENTRY (MEMCMP) -# ifdef USE_AS_WMEMCMP - shl $2, %RDX_LP -# elif defined __ILP32__ - /* Clear the upper 32 bits. */ - mov %edx, %edx -# endif - cmp $79, %RDX_LP - ja L(79bytesormore) - - cmp $CHAR_SIZE, %RDX_LP - jbe L(firstbyte) - - /* N in (CHAR_SIZE, 79) bytes. */ - cmpl $32, %edx - ja L(more_32_bytes) - - cmpl $16, %edx - jae L(16_to_32_bytes) - -# ifndef USE_AS_WMEMCMP - cmpl $8, %edx - jae L(8_to_16_bytes) - - cmpl $4, %edx - jb L(2_to_3_bytes) - - movl (%rdi), %eax - movl (%rsi), %ecx - - bswap %eax - bswap %ecx - - shlq $32, %rax - shlq $32, %rcx - - movl -4(%rdi, %rdx), %edi - movl -4(%rsi, %rdx), %esi - - bswap %edi - bswap %esi - - orq %rdi, %rax - orq %rsi, %rcx - subq %rcx, %rax - cmovne %edx, %eax - sbbl %ecx, %ecx - orl %ecx, %eax - ret - - .p2align 4,, 8 -L(2_to_3_bytes): - movzwl (%rdi), %eax - movzwl (%rsi), %ecx - shll $8, %eax - shll $8, %ecx - bswap %eax - bswap %ecx - movzbl -1(%rdi, %rdx), %edi - movzbl -1(%rsi, %rdx), %esi - orl %edi, %eax - orl %esi, %ecx - subl %ecx, %eax - ret - - .p2align 4,, 8 -L(8_to_16_bytes): - movq (%rdi), %rax - movq (%rsi), %rcx - - bswap %rax - bswap %rcx - - subq %rcx, %rax - jne L(8_to_16_bytes_done) - - movq -8(%rdi, %rdx), %rax - movq -8(%rsi, %rdx), %rcx - - bswap %rax - bswap %rcx - - subq %rcx, %rax - -L(8_to_16_bytes_done): - cmovne %edx, %eax - sbbl %ecx, %ecx - orl %ecx, %eax - ret -# else - xorl %eax, %eax - movl (%rdi), %ecx - cmpl (%rsi), %ecx - jne L(8_to_16_bytes_done) - movl 4(%rdi), %ecx - cmpl 4(%rsi), %ecx - jne L(8_to_16_bytes_done) - movl -4(%rdi, %rdx), %ecx - cmpl -4(%rsi, %rdx), %ecx - jne L(8_to_16_bytes_done) - ret -# endif - - .p2align 4,, 3 -L(ret_zero): - xorl %eax, %eax -L(zero): - ret - - .p2align 4,, 8 -L(firstbyte): - jb L(ret_zero) -# ifdef USE_AS_WMEMCMP - xorl %eax, %eax - movl (%rdi), %ecx - cmpl (%rsi), %ecx - je L(zero) -L(8_to_16_bytes_done): - setg %al - leal -1(%rax, %rax), %eax -# else - movzbl (%rdi), %eax - movzbl (%rsi), %ecx - sub %ecx, %eax -# endif - ret - - .p2align 4 -L(vec_return_begin_48): - addq $16, %rdi - addq $16, %rsi -L(vec_return_begin_32): - bsfl %eax, %eax -# ifdef USE_AS_WMEMCMP - movl 32(%rdi, %rax), %ecx - xorl %edx, %edx - cmpl 32(%rsi, %rax), %ecx - setg %dl - leal -1(%rdx, %rdx), %eax -# else - movzbl 32(%rsi, %rax), %ecx - movzbl 32(%rdi, %rax), %eax - subl %ecx, %eax -# endif - ret - - .p2align 4 -L(vec_return_begin_16): - addq $16, %rdi - addq $16, %rsi -L(vec_return_begin): - bsfl %eax, %eax -# ifdef USE_AS_WMEMCMP - movl (%rdi, %rax), %ecx - xorl %edx, %edx - cmpl (%rsi, %rax), %ecx - setg %dl - leal -1(%rdx, %rdx), %eax -# else - movzbl (%rsi, %rax), %ecx - movzbl (%rdi, %rax), %eax - subl %ecx, %eax -# endif - ret - - .p2align 4 -L(vec_return_end_16): - subl $16, %edx -L(vec_return_end): - bsfl %eax, %eax - addl %edx, %eax -# ifdef USE_AS_WMEMCMP - movl -16(%rdi, %rax), %ecx - xorl %edx, %edx - cmpl -16(%rsi, %rax), %ecx - setg %dl - leal -1(%rdx, %rdx), %eax -# else - movzbl -16(%rsi, %rax), %ecx - movzbl -16(%rdi, %rax), %eax - subl %ecx, %eax -# endif - ret - - .p2align 4,, 8 -L(more_32_bytes): - movdqu (%rdi), %xmm0 - movdqu (%rsi), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqu 16(%rdi), %xmm0 - movdqu 16(%rsi), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - cmpl $64, %edx - jbe L(32_to_64_bytes) - movdqu 32(%rdi), %xmm0 - movdqu 32(%rsi), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_32) - - .p2align 4,, 6 -L(32_to_64_bytes): - movdqu -32(%rdi, %rdx), %xmm0 - movdqu -32(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end_16) - - movdqu -16(%rdi, %rdx), %xmm0 - movdqu -16(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end) - ret - - .p2align 4 -L(16_to_32_bytes): - movdqu (%rdi), %xmm0 - movdqu (%rsi), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqu -16(%rdi, %rdx), %xmm0 - movdqu -16(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end) - ret - - - .p2align 4 -L(79bytesormore): - movdqu (%rdi), %xmm0 - movdqu (%rsi), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - - mov %rsi, %rcx - and $-16, %rsi - add $16, %rsi - sub %rsi, %rcx - - sub %rcx, %rdi - add %rcx, %rdx - test $0xf, %rdi - jz L(2aligned) - - cmp $128, %rdx - ja L(128bytesormore) - - .p2align 4,, 6 -L(less128bytes): - movdqu (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqu 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqu 32(%rdi), %xmm1 - CMPEQ 32(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_32) - - movdqu 48(%rdi), %xmm1 - CMPEQ 48(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_48) - - cmp $96, %rdx - jb L(32_to_64_bytes) - - addq $64, %rdi - addq $64, %rsi - subq $64, %rdx - - .p2align 4,, 6 -L(last_64_bytes): - movdqu (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqu 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqu -32(%rdi, %rdx), %xmm0 - movdqu -32(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end_16) - - movdqu -16(%rdi, %rdx), %xmm0 - movdqu -16(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end) - ret - - .p2align 4 -L(128bytesormore): - cmp $256, %rdx - ja L(unaligned_loop) -L(less256bytes): - movdqu (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqu 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqu 32(%rdi), %xmm1 - CMPEQ 32(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_32) - - movdqu 48(%rdi), %xmm1 - CMPEQ 48(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_48) - - addq $64, %rdi - addq $64, %rsi - - movdqu (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqu 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqu 32(%rdi), %xmm1 - CMPEQ 32(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_32) - - movdqu 48(%rdi), %xmm1 - CMPEQ 48(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_48) - - addq $-128, %rdx - subq $-64, %rsi - subq $-64, %rdi - - cmp $64, %rdx - ja L(less128bytes) - - cmp $32, %rdx - ja L(last_64_bytes) - - movdqu -32(%rdi, %rdx), %xmm0 - movdqu -32(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end_16) - - movdqu -16(%rdi, %rdx), %xmm0 - movdqu -16(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end) - ret - - .p2align 4 -L(unaligned_loop): -# ifdef DATA_CACHE_SIZE_HALF - mov $DATA_CACHE_SIZE_HALF, %R8_LP -# else - mov __x86_data_cache_size_half(%rip), %R8_LP -# endif - movq %r8, %r9 - addq %r8, %r8 - addq %r9, %r8 - cmpq %r8, %rdx - ja L(L2_L3_cache_unaligned) - sub $64, %rdx - .p2align 4 -L(64bytesormore_loop): - movdqu (%rdi), %xmm0 - movdqu 16(%rdi), %xmm1 - movdqu 32(%rdi), %xmm2 - movdqu 48(%rdi), %xmm3 - - CMPEQ (%rsi), %xmm0 - CMPEQ 16(%rsi), %xmm1 - CMPEQ 32(%rsi), %xmm2 - CMPEQ 48(%rsi), %xmm3 - - pand %xmm0, %xmm1 - pand %xmm2, %xmm3 - pand %xmm1, %xmm3 - - pmovmskb %xmm3, %eax - incw %ax - jnz L(64bytesormore_loop_end) - - add $64, %rsi - add $64, %rdi - sub $64, %rdx - ja L(64bytesormore_loop) - - .p2align 4,, 6 -L(loop_tail): - addq %rdx, %rdi - movdqu (%rdi), %xmm0 - movdqu 16(%rdi), %xmm1 - movdqu 32(%rdi), %xmm2 - movdqu 48(%rdi), %xmm3 - - addq %rdx, %rsi - movdqu (%rsi), %xmm4 - movdqu 16(%rsi), %xmm5 - movdqu 32(%rsi), %xmm6 - movdqu 48(%rsi), %xmm7 - - CMPEQ %xmm4, %xmm0 - CMPEQ %xmm5, %xmm1 - CMPEQ %xmm6, %xmm2 - CMPEQ %xmm7, %xmm3 - - pand %xmm0, %xmm1 - pand %xmm2, %xmm3 - pand %xmm1, %xmm3 - - pmovmskb %xmm3, %eax - incw %ax - jnz L(64bytesormore_loop_end) - ret - -L(L2_L3_cache_unaligned): - subq $64, %rdx - .p2align 4 -L(L2_L3_unaligned_128bytes_loop): - prefetchnta 0x1c0(%rdi) - prefetchnta 0x1c0(%rsi) - - movdqu (%rdi), %xmm0 - movdqu 16(%rdi), %xmm1 - movdqu 32(%rdi), %xmm2 - movdqu 48(%rdi), %xmm3 - - CMPEQ (%rsi), %xmm0 - CMPEQ 16(%rsi), %xmm1 - CMPEQ 32(%rsi), %xmm2 - CMPEQ 48(%rsi), %xmm3 - - pand %xmm0, %xmm1 - pand %xmm2, %xmm3 - pand %xmm1, %xmm3 - - pmovmskb %xmm3, %eax - incw %ax - jnz L(64bytesormore_loop_end) - - add $64, %rsi - add $64, %rdi - sub $64, %rdx - ja L(L2_L3_unaligned_128bytes_loop) - jmp L(loop_tail) - - - /* This case is for machines which are sensitive for unaligned - * instructions. */ - .p2align 4 -L(2aligned): - cmp $128, %rdx - ja L(128bytesormorein2aligned) -L(less128bytesin2aligned): - movdqa (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqa 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqa 32(%rdi), %xmm1 - CMPEQ 32(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_32) - - movdqa 48(%rdi), %xmm1 - CMPEQ 48(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_48) - - cmp $96, %rdx - jb L(32_to_64_bytes) - - addq $64, %rdi - addq $64, %rsi - subq $64, %rdx - - .p2align 4,, 6 -L(aligned_last_64_bytes): - movdqa (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqa 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqu -32(%rdi, %rdx), %xmm0 - movdqu -32(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end_16) - - movdqu -16(%rdi, %rdx), %xmm0 - movdqu -16(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end) - ret - - .p2align 4 -L(128bytesormorein2aligned): - cmp $256, %rdx - ja L(aligned_loop) -L(less256bytesin2alinged): - movdqa (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqa 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqa 32(%rdi), %xmm1 - CMPEQ 32(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_32) - - movdqa 48(%rdi), %xmm1 - CMPEQ 48(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_48) - - addq $64, %rdi - addq $64, %rsi - - movdqa (%rdi), %xmm1 - CMPEQ (%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin) - - movdqa 16(%rdi), %xmm1 - CMPEQ 16(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_16) - - movdqa 32(%rdi), %xmm1 - CMPEQ 32(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_32) - - movdqa 48(%rdi), %xmm1 - CMPEQ 48(%rsi), %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_begin_48) - - addq $-128, %rdx - subq $-64, %rsi - subq $-64, %rdi - - cmp $64, %rdx - ja L(less128bytesin2aligned) - - cmp $32, %rdx - ja L(aligned_last_64_bytes) - - movdqu -32(%rdi, %rdx), %xmm0 - movdqu -32(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end_16) - - movdqu -16(%rdi, %rdx), %xmm0 - movdqu -16(%rsi, %rdx), %xmm1 - CMPEQ %xmm0, %xmm1 - pmovmskb %xmm1, %eax - incw %ax - jnz L(vec_return_end) - ret - - .p2align 4 -L(aligned_loop): -# ifdef DATA_CACHE_SIZE_HALF - mov $DATA_CACHE_SIZE_HALF, %R8_LP -# else - mov __x86_data_cache_size_half(%rip), %R8_LP -# endif - movq %r8, %r9 - addq %r8, %r8 - addq %r9, %r8 - cmpq %r8, %rdx - ja L(L2_L3_cache_aligned) - - sub $64, %rdx - .p2align 4 -L(64bytesormore_loopin2aligned): - movdqa (%rdi), %xmm0 - movdqa 16(%rdi), %xmm1 - movdqa 32(%rdi), %xmm2 - movdqa 48(%rdi), %xmm3 - - CMPEQ (%rsi), %xmm0 - CMPEQ 16(%rsi), %xmm1 - CMPEQ 32(%rsi), %xmm2 - CMPEQ 48(%rsi), %xmm3 - - pand %xmm0, %xmm1 - pand %xmm2, %xmm3 - pand %xmm1, %xmm3 - - pmovmskb %xmm3, %eax - incw %ax - jnz L(64bytesormore_loop_end) - add $64, %rsi - add $64, %rdi - sub $64, %rdx - ja L(64bytesormore_loopin2aligned) - jmp L(loop_tail) - -L(L2_L3_cache_aligned): - subq $64, %rdx - .p2align 4 -L(L2_L3_aligned_128bytes_loop): - prefetchnta 0x1c0(%rdi) - prefetchnta 0x1c0(%rsi) - movdqa (%rdi), %xmm0 - movdqa 16(%rdi), %xmm1 - movdqa 32(%rdi), %xmm2 - movdqa 48(%rdi), %xmm3 - - CMPEQ (%rsi), %xmm0 - CMPEQ 16(%rsi), %xmm1 - CMPEQ 32(%rsi), %xmm2 - CMPEQ 48(%rsi), %xmm3 - - pand %xmm0, %xmm1 - pand %xmm2, %xmm3 - pand %xmm1, %xmm3 - - pmovmskb %xmm3, %eax - incw %ax - jnz L(64bytesormore_loop_end) - - addq $64, %rsi - addq $64, %rdi - subq $64, %rdx - ja L(L2_L3_aligned_128bytes_loop) - jmp L(loop_tail) - - .p2align 4 -L(64bytesormore_loop_end): - pmovmskb %xmm0, %ecx - incw %cx - jnz L(loop_end_ret) - - pmovmskb %xmm1, %ecx - notw %cx - sall $16, %ecx - jnz L(loop_end_ret) - - pmovmskb %xmm2, %ecx - notw %cx - shlq $32, %rcx - jnz L(loop_end_ret) - - addq $48, %rdi - addq $48, %rsi - movq %rax, %rcx - - .p2align 4,, 6 -L(loop_end_ret): - bsfq %rcx, %rcx -# ifdef USE_AS_WMEMCMP - movl (%rdi, %rcx), %eax - xorl %edx, %edx - cmpl (%rsi, %rcx), %eax - setg %dl - leal -1(%rdx, %rdx), %eax -# else - movzbl (%rdi, %rcx), %eax - movzbl (%rsi, %rcx), %ecx - subl %ecx, %eax -# endif - ret -END (MEMCMP) -#endif |