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 * 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 OFForward
.globl OFForward_stret

.section .text
OFForward:
	push	rbp
	mov	rbp, rsp
	pushq	%rbp
	movq	%rsp, %rbp

	/* Save all arguments */
	sub	rsp, 0x90	/* 16-byte alignment */
	mov	[rbp - 0x28], rax
	mov	[rbp - 0x30], rcx
	mov	[rbp - 0x38], rdx
	mov	[rbp - 0x40], r8
	mov	[rbp - 0x48], r9
	movaps	[rbp - 0x60], xmm0
	movaps	[rbp - 0x70], xmm1
	movaps	[rbp - 0x80], xmm2
	movaps	[rbp - 0x90], xmm3
	subq	$0x90, %rsp	/* 16-byte alignment */
	movq	%rax, -0x28(%rbp)
	movq	%rcx, -0x30(%rbp)
	movq	%rdx, -0x38(%rbp)
	movq	%r8, -0x40(%rbp)
	movq	%r9, -0x48(%rbp)
	movaps	%xmm0, -0x60(%rbp)
	movaps	%xmm1, -0x70(%rbp)
	movaps	%xmm2, -0x80(%rbp)
	movaps	%xmm3, -0x90(%rbp)

	call	object_getClass

	mov	rcx, rax
	lea	rdx, [rip + .Lsel_forwardingTargetForSelector_]
	movq	%rax, %rcx
	leaq	.Lsel_forwardingTargetForSelector_(%rip), %rdx
	call	class_respondsToSelector

	test	rax, rax
	testq	%rax, %rax
	jz	0f

	mov	rcx, [rbp - 0x30]
	lea	rdx, [rip + .Lsel_forwardingTargetForSelector_]
	movq	-0x30(%rbp), %rcx
	leaq	.Lsel_forwardingTargetForSelector_(%rip), %rdx
	call	objc_msg_lookup

	mov	rcx, [rbp - 0x30]
	lea	rdx, [rip + .Lsel_forwardingTargetForSelector_]
	mov	r8, [rbp - 0x38]
	call	rax
	movq	-0x30(%rbp), %rcx
	leaq	.Lsel_forwardingTargetForSelector_(%rip), %rdx
	movq	-0x38(%rbp), %r8
	call	*%rax

	test	rax, rax
	testq	%rax, %rax
	jz	0f
	cmp	rax, [rbp - 0x30]
	cmpq	-0x30(%rbp), %rax
	je	0f

	mov	[rbp - 0x30], rax
	movq	%rax, -0x30(%rbp)

	mov	rcx, rax
	mov	rdx, [rbp - 0x38]
	movq	%rax, %rcx
	movq	-0x38(%rbp), %rdx
	call	objc_msg_lookup
	mov	r11, rax
	movq	%rax, %r11

	/* Restore all arguments */
	movaps	xmm3, [rbp - 0x90]
	movaps	xmm2, [rbp - 0x80]
	movaps	xmm1, [rbp - 0x70]
	movaps	xmm0, [rbp - 0x60]
	mov	r9, [rbp - 0x48]
	mov	r8, [rbp - 0x40]
	mov	rdx, [rbp - 0x38]
	mov	rcx, [rbp - 0x30]
	mov	rax, [rbp - 0x28]
	movaps	-0x90(%rbp), %xmm3
	movaps	-0x80(%rbp), %xmm2
	movaps	-0x70(%rbp), %xmm1
	movaps	-0x60(%rbp), %xmm0
	movq	-0x48(%rbp), %r9
	movq	-0x40(%rbp), %r8
	movq	-0x38(%rbp), %rdx
	movq	-0x30(%rbp), %rcx
	movq	-0x28(%rbp), %rax

	mov	rsp, rbp
	pop	rbp
	movq	%rbp, %rsp
	popq	%rbp

	jmp	r11
	jmpq	*%r11

0:
	mov	rcx, [rbp - 0x30]
	mov	rdx, [rbp - 0x38]
	movq	-0x30(%rbp), %rcx
	movq	-0x38(%rbp), %rdx

	mov	rsp, rbp
	pop	rbp
	movq	%rbp, %rsp
	popq	%rbp

	jmp	OFMethodNotFound
.def OFForward
.scl 2
.type 32
.endef

OFForward_stret:
	push	rbp
	mov	rbp, rsp
	pushq	%rbp
	movq	%rsp, %rbp

	/* Save all arguments */
	sub	rsp, 0x90	/* 16-byte alignment */
	mov	[rbp - 0x28], rax
	mov	[rbp - 0x30], rcx
	mov	[rbp - 0x38], rdx
	mov	[rbp - 0x40], r8
	mov	[rbp - 0x48], r9
	movaps	[rbp - 0x60], xmm0
	movaps	[rbp - 0x70], xmm1
	movaps	[rbp - 0x80], xmm2
	movaps	[rbp - 0x90], xmm3
	subq	$0x90, %rsp	/* 16-byte alignment */
	movq	%rax, -0x28(%rbp)
	movq	%rcx, -0x30(%rbp)
	movq	%rdx, -0x38(%rbp)
	movq	%r8, -0x40(%rbp)
	movq	%r9, -0x48(%rbp)
	movaps	%xmm0, -0x60(%rbp)
	movaps	%xmm1, -0x70(%rbp)
	movaps	%xmm2, -0x80(%rbp)
	movaps	%xmm3, -0x90(%rbp)

	mov	rcx, rdx
	movq	%rdx, %rcx
	call	object_getClass

	mov	rcx, rax
	lea	rdx, [rip + .Lsel_forwardingTargetForSelector_]
	movq	%rax, %rcx
	leaq	.Lsel_forwardingTargetForSelector_(%rip), %rdx
	call	class_respondsToSelector

	test	rax, rax
	testq	%rax, %rax
	jz	0f

	mov	rcx, [rbp - 0x38]
	lea	rdx, [rip + .Lsel_forwardingTargetForSelector_]
	movq	-0x38(%rbp), %rcx
	leaq	.Lsel_forwardingTargetForSelector_(%rip), %rdx
	call	objc_msg_lookup

	mov	rcx, [rbp - 0x38]
	lea	rdx, [rip + .Lsel_forwardingTargetForSelector_]
	mov	r8, [rbp - 0x40]
	call	rax
	movq	-0x38(%rbp), %rcx
	leaq	.Lsel_forwardingTargetForSelector_(%rip), %rdx
	movq	-0x40(%rbp), %r8
	call	*%rax

	test	rax, rax
	testq	%rax, %rax
	jz	0f
	cmp	rax, [rbp - 0x38]
	cmpq	-0x38(%rbp), %rax
	je	0f

	mov	[rbp - 0x38], rax
	movq	%rax, -0x38(%rbp)

	mov	rcx, rax
	mov	rdx, [rbp - 0x40]
	movq	%rax, %rcx
	movq	-0x40(%rbp), %rdx
	call	objc_msg_lookup_stret
	mov	r11, rax
	movq	%rax, %r11

	/* Restore all arguments */
	movaps	xmm3, [rbp - 0x90]
	movaps	xmm2, [rbp - 0x80]
	movaps	xmm1, [rbp - 0x70]
	movaps	xmm0, [rbp - 0x60]
	mov	r9, [rbp - 0x48]
	mov	r8, [rbp - 0x40]
	mov	rdx, [rbp - 0x38]
	mov	rcx, [rbp - 0x30]
	mov	rax, [rbp - 0x28]
	movaps	-0x90(%rbp), %xmm3
	movaps	-0x80(%rbp), %xmm2
	movaps	-0x70(%rbp), %xmm1
	movaps	-0x60(%rbp), %xmm0
	movq	-0x48(%rbp), %r9
	movq	-0x40(%rbp), %r8
	movq	-0x38(%rbp), %rdx
	movq	-0x30(%rbp), %rcx
	movq	-0x28(%rbp), %rax

	mov	rsp, rbp
	pop	rbp
	movq	%rbp, %rsp
	popq	%rbp

	jmp	r11
	jmpq	*%r11

0:
	mov	rcx, [rbp - 0x30]
	mov	rdx, [rbp - 0x38]
	mov	r8, [rbp - 0x40]
	movq	-0x30(%rbp), %rcx
	movq	-0x38(%rbp), %rdx
	movq	-0x40(%rbp), %r8

	mov	rsp, rbp
	pop	rbp
	movq	%rbp, %rsp
	popq	%rbp

	jmp	OFMethodNotFound_stret
.def OFForward_stret
.scl 2
.type 32
.endef

.Linit:
	lea	rcx, [rip + .Lmodule]
	leaq	.Lmodule(%rip), %rcx
	jmp	__objc_exec_class

.section .ctors, "aw"
	.quad .Linit

.section .rodata
.Lstr_forwardingTargetForSelector_: