git: f0f0f2abf333 - main - amd64: remove bcmp.S
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Date: Fri, 25 Mar 2022 14:58:19 UTC
The branch main has been updated by mjg: URL: https://cgit.FreeBSD.org/src/commit/?id=f0f0f2abf333fd221298b07f6831a0143a98c324 commit f0f0f2abf333fd221298b07f6831a0143a98c324 Author: Mateusz Guzik <mjg@FreeBSD.org> AuthorDate: 2022-03-25 14:54:55 +0000 Commit: Mateusz Guzik <mjg@FreeBSD.org> CommitDate: 2022-03-25 14:57:51 +0000 amd64: remove bcmp.S Fixes: 5fc3cc2713eff8cd ("amd64: make bcmp in libc just call memcmp") --- lib/libc/amd64/string/bcmp.S | 121 ------------------------------------------- 1 file changed, 121 deletions(-) diff --git a/lib/libc/amd64/string/bcmp.S b/lib/libc/amd64/string/bcmp.S deleted file mode 100644 index efdc6d33e4dd..000000000000 --- a/lib/libc/amd64/string/bcmp.S +++ /dev/null @@ -1,121 +0,0 @@ -/*- - * Copyright (c) 2018 The FreeBSD Foundation - * - * This software was developed by Mateusz Guzik <mjg@FreeBSD.org> - * under sponsorship from the FreeBSD Foundation. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <machine/asm.h> -__FBSDID("$FreeBSD$"); - -ENTRY(bcmp) - cmpq $16,%rdx - jae 5f -1: - testq %rdx,%rdx - je 3f - xorl %ecx,%ecx -2: - movzbl (%rdi,%rcx,1),%eax - movzbl (%rsi,%rcx,1),%r8d - cmpb %r8b,%al - jne 4f - addq $1,%rcx - cmpq %rcx,%rdx - jz 3f - movzbl (%rdi,%rcx,1),%eax - movzbl (%rsi,%rcx,1),%r8d - cmpb %r8b,%al - jne 4f - addq $1,%rcx - cmpq %rcx,%rdx - jz 3f - movzbl (%rdi,%rcx,1),%eax - movzbl (%rsi,%rcx,1),%r8d - cmpb %r8b,%al - jne 4f - addq $1,%rcx - cmpq %rcx,%rdx - jz 3f - movzbl (%rdi,%rcx,1),%eax - movzbl (%rsi,%rcx,1),%r8d - cmpb %r8b,%al - jne 4f - addq $1,%rcx - cmpq %rcx,%rdx - jne 2b -3: - xorl %eax,%eax - ret -4: - movl $1,%eax - ret -5: - cmpq $32,%rdx - jae 7f -6: - /* - * 8 bytes - */ - movq (%rdi),%r8 - movq (%rsi),%r9 - cmpq %r8,%r9 - jne 4b - leaq 8(%rdi),%rdi - leaq 8(%rsi),%rsi - subq $8,%rdx - cmpq $8,%rdx - jae 6b - jl 1b - jmp 3b -7: - /* - * 32 bytes - */ - movq (%rsi),%r8 - movq 8(%rsi),%r9 - subq (%rdi),%r8 - subq 8(%rdi),%r9 - or %r8,%r9 - jnz 4b - - movq 16(%rsi),%r8 - movq 24(%rsi),%r9 - subq 16(%rdi),%r8 - subq 24(%rdi),%r9 - or %r8,%r9 - jnz 4b - - leaq 32(%rdi),%rdi - leaq 32(%rsi),%rsi - subq $32,%rdx - cmpq $32,%rdx - jae 7b - jnz 1b - jmp 3b -END(bcmp) - - .section .note.GNU-stack,"",%progbits