The branch main has been updated by mjg:
URL:
https://cgit.FreeBSD.org/src/commit/?id=f0f0f2abf333fd221298b07f6831a0143a98c324
commit f0f0f2abf333fd221298b07f6831a0143a98c324
Author: Mateusz Guzik <m...@freebsd.org>
AuthorDate: 2022-03-25 14:54:55 +0000
Commit: Mateusz Guzik <m...@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 <m...@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
