DELETED src/runtime/lookup-asm/lookup-asm-x86_64-macho.S
Index: src/runtime/lookup-asm/lookup-asm-x86_64-macho.S
==================================================================
--- src/runtime/lookup-asm/lookup-asm-x86_64-macho.S
+++ src/runtime/lookup-asm/lookup-asm-x86_64-macho.S
@@ -1,92 +0,0 @@
-/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
- *               2018, 2019, 2020
- *   Jonathan Schleifer <js@nil.im>
- *
- * All rights reserved.
- *
- * This file is part of ObjFW. It may be distributed under the terms of the
- * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
- * the packaging of this file.
- *
- * Alternatively, it may be distributed under the terms of the GNU General
- * Public License, either version 2 or 3, which can be found in the file
- * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
- * file.
- */
-
-#include "config.h"
-
-.intel_syntax noprefix
-
-.globl _objc_msg_lookup
-.globl _objc_msg_lookup_stret
-.globl _objc_msg_lookup_super
-.globl _objc_msg_lookup_super_stret
-
-.section __TEXT, __text, regular, pure_instructions
-.macro generate_lookup
-$0:
-	test	rdi, rdi
-	jz	ret_nil
-
-	bt	edi, 0
-	jc	Ltagged_pointer_$0
-
-	mov	r8, [rdi]
-	mov	r8, [r8+64]
-
-Lmain_$0:
-	mov	rax, [rsi]
-	movzx	ecx, ah
-	movzx	edx, al
-#ifdef OF_SELUID24
-	shr	eax, 16
-
-	mov	r8, [r8+rax*8]
-#endif
-	mov	r8, [r8+rcx*8]
-	mov	rax, [r8+rdx*8]
-
-	test	rax, rax
-	jz	$1
-
-	ret
-
-Ltagged_pointer_$0:
-	mov	rax, [rip+_objc_tagged_pointer_secret@GOTPCREL]
-	xor	rdi, [rax]
-	and	dil, 0xE
-	movzx	r8, dil
-
-	mov	rax, [rip+_objc_tagged_pointer_classes@GOTPCREL]
-	mov	r8, [rax+r8*4]
-	mov	r8, [r8+64]
-
-	jmp	Lmain_$0
-.endmacro
-
-.macro generate_lookup_super
-$0:
-	mov	r8, rdi
-	mov	rdi, [rdi]
-	test	rdi, rdi
-	jz	ret_nil
-
-	mov	r8, [r8+8]
-	mov	r8, [r8+64]
-	jmp	Lmain_$1
-.endmacro
-
-generate_lookup _objc_msg_lookup, _objc_method_not_found
-generate_lookup _objc_msg_lookup_stret, _objc_method_not_found_stret
-generate_lookup_super _objc_msg_lookup_super, _objc_msg_lookup
-generate_lookup_super _objc_msg_lookup_super_stret, _objc_msg_lookup_stret
-
-ret_nil:
-	lea	rax, [rip+nil_method]
-	ret
-
-nil_method:
-	mov	rax, rdi
-	ret

Index: src/runtime/lookup-asm/lookup-asm.S
==================================================================
--- src/runtime/lookup-asm/lookup-asm.S
+++ src/runtime/lookup-asm/lookup-asm.S
@@ -37,16 +37,12 @@
 # elif defined(OF_SPARC64)
 #  include "lookup-asm-sparc64-elf.S"
 # elif defined(OF_SPARC)
 #  include "lookup-asm-sparc-elf.S"
 # endif
-#elif defined(OF_MACH_O)
-# if defined(OF_X86_64)
-#  include "lookup-asm-x86_64-macho.S"
-# endif
 #elif defined(OF_WINDOWS)
 # if defined(OF_X86_64)
 #  include "lookup-asm-x86_64-win64.S"
 # elif defined(OF_X86)
 #  include "lookup-asm-x86-win32.S"
 # endif
 #endif

Index: src/runtime/private.h
==================================================================
--- src/runtime/private.h
+++ src/runtime/private.h
@@ -340,14 +340,10 @@
 #if defined(OF_ELF)
 # if defined(OF_X86_64) || defined(OF_X86) || defined(OF_POWERPC) || \
     defined(OF_ARM64) || defined(OF_ARM) || \
     defined(OF_MIPS64_N64) || defined(OF_MIPS) || \
     defined(OF_SPARC64) || defined(OF_SPARC)
-#  define OF_ASM_LOOKUP
-# endif
-#elif defined(OF_MACH_O)
-# if defined(OF_X86_64)
 #  define OF_ASM_LOOKUP
 # endif
 #elif defined(OF_WINDOWS)
 # if defined(OF_X86_64) || defined(OF_X86)
 #  define OF_ASM_LOOKUP