Given the following C code and assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>
#include<stdlib.h>
long long fun(long long ,long long );
long long fun(long long n,long long m)
{
    if(2*n>=m)
    {
        return m/2;
    }
    m=m-n*2;
    m=m/4;
    return m+n;
}
int main()
{
    long long n,m;
    scanf("%lld%lld",&n,&m);
    printf("%lld\n",fun(n,m));
    return 0;
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	fun
	.type	fun, @function
fun:
.LFB39:
	.cfi_startproc
	endbr64
	leaq	(%rdi,%rdi), %rax
	cmpq	%rsi, %rax
	jge	.L5
	subq	%rax, %rsi
	sarq	$2, %rsi
	leaq	(%rsi,%rdi), %rax
	ret
	.p2align 4,,10
	.p2align 3
.L5:
	movq	%rsi, %rax
	shrq	$63, %rax
	addq	%rsi, %rax
	sarq	%rax
	ret
	.cfi_endproc
.LFE39:
	.size	fun, .-fun
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld"
.LC1:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB40:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	8(%rsp), %rdx
	movq	16(%rsp), %rax
	leaq	(%rdx,%rdx), %rcx
	cmpq	%rcx, %rax
	jle	.L11
	subq	%rcx, %rax
	sarq	$2, %rax
	leaq	(%rax,%rdx), %r8
.L8:
	xorl	%eax, %eax
	movq	%r8, %rdx
	movl	$1, %edi
	leaq	.LC1(%rip), %rsi
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L11:
	.cfi_restore_state
	movl	$2, %ecx
	cqto
	idivq	%rcx
	movq	%rax, %r8
	jmp	.L8
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE40:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
Optimized Assembly Code:

user
```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	fun
	.type	fun, @function
fun:
.LFB39:
	.cfi_startproc
	endbr64
	leaq	(%rdi,%rdi), %rax
	cmpq	%rsi, %rax
	jge	.L5
	subq	%rax, %rsi
	sarq	$2, %rsi
	leaq	(%rsi,%rdi), %rax
	ret
	.p2align 4,,10
	.p2align 3
.L5:
	movq	%rsi, %rax
	shrq	$63, %rax
	addq	%rsi, %rax
	sarq	%rax
	ret
	.cfi_endproc
.LFE39:
	.size	fun, .-fun
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld"
.LC1:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB40:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	8(%rsp), %rdx
	movq	16(%rsp), %rax
	leaq	(%rdx,%rdx), %rcx
	cmpq	%rcx, %rax
	jle	.L11
	subq	%rcx, %rax
	sarq	$2, %rax
	leaq	(%rax,%rdx), %r8
.L8:
	xorl	%eax, %eax
	movq	%r8, %rdx
	movl	$1, %edi
	leaq	.LC1(%rip), %rsi
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L11:
	.cfi_restore_state
	movl	$2, %ecx
	cqto
	idivq	%rcx
	movq	%rax, %r8
	jmp	.L8
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE40:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```
rule
```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	fun
	.type	fun, @function
fun:
.LFB39:
	.cfi_startproc
	endbr64
	leaq	(%rdi,%rdi), %rax
	cmpq	%rsi, %rax
	jge	.L5
	subq	%rax, %rsi
	sarq	$2, %rsi
	leaq	(%rsi,%rdi), %rax
	ret
	.p2align 4,,10
	.p2align 3
.L5:
	movq	%rsi, %rax
	shrq	$63, %rax
	addq	%rsi, %rax
	sarq	%rax
	ret
	.cfi_endproc
.LFE39:
	.size	fun, .-fun
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld"
.LC1:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB40:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	8(%rsp), %rdx
	movq	16(%rsp), %rax
	leaq	(%rdx,%rdx), %rcx
	cmpq	%rcx, %rax
	jle	.L11
	subq	%rcx, %rax
	sarq	$2, %rax
	leaq	(%rax,%rdx), %r8
.L8:
	xorl	%eax, %eax
	movq	%r8, %rdx
	movl	$1, %edi
	leaq	.LC1(%rip), %rsi
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L11:
	.cfi_restore_state
	movl	$2, %ecx
	cqto
	idivq	%rcx
	movq	%rax, %r8
	jmp	.L8
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE40:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```
```c
#include<stdio.h>
#include<stdlib.h>
long long fun(long long ,long long );
long long fun(long long n,long long m)
{
    if(2*n>=m)
    {
        return m/2;
    }
    m=m-n*2;
    m=m/4;
    return m+n;
}
int main()
{
    long long n,m;
    scanf("%lld%lld",&n,&m);
    printf("%lld\n",fun(n,m));
    return 0;
}```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>
#include<stdlib.h>
long long fun(long long ,long long );
long long fun(long long n,long long m)
{
    if(2*n>=m)
    {
        return m/2;
    }
    m=m-n*2;
    m=m/4;
    return m+n;
}
int main()
{
    long long n,m;
    scanf("%lld%lld",&n,&m);
    printf("%lld\n",fun(n,m));
    return 0;
}```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
Optimized Assembly Code:

1 6

2

Given the following C code and assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>
#include<stdlib.h>
long long fun(long long ,long long );
long long fun(long long n,long long m)
{
    if(2*n>=m)
    {
        return m/2;
    }
    m=m-n*2;
    m=m/4;
    return m+n;
}
int main()
{
    long long n,m;
    scanf("%lld%lld",&n,&m);
    printf("%lld\n",fun(n,m));
    return 0;
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	fun
	.type	fun, @function
fun:
.LFB39:
	.cfi_startproc
	endbr64
	leaq	(%rdi,%rdi), %rax
	cmpq	%rsi, %rax
	jge	.L5
	subq	%rax, %rsi
	sarq	$2, %rsi
	leaq	(%rsi,%rdi), %rax
	ret
	.p2align 4,,10
	.p2align 3
.L5:
	movq	%rsi, %rax
	shrq	$63, %rax
	addq	%rsi, %rax
	sarq	%rax
	ret
	.cfi_endproc
.LFE39:
	.size	fun, .-fun
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld"
.LC1:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB40:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	8(%rsp), %rdx
	movq	16(%rsp), %rax
	leaq	(%rdx,%rdx), %rcx
	cmpq	%rcx, %rax
	jle	.L11
	subq	%rcx, %rax
	sarq	$2, %rax
	leaq	(%rax,%rdx), %r8
.L8:
	xorl	%eax, %eax
	movq	%r8, %rdx
	movl	$1, %edi
	leaq	.LC1(%rip), %rsi
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L11:
	.cfi_restore_state
	movl	$2, %ecx
	cqto
	idivq	%rcx
	movq	%rax, %r8
	jmp	.L8
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE40:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
Optimized Assembly Code:

train
```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	fun
	.type	fun, @function
fun:
.LFB39:
	.cfi_startproc
	endbr64
	leaq	(%rdi,%rdi), %rax
	cmpq	%rsi, %rax
	jge	.L5
	subq	%rax, %rsi
	sarq	$2, %rsi
	leaq	(%rsi,%rdi), %rax
	ret
	.p2align 4,,10
	.p2align 3
.L5:
	movq	%rsi, %rax
	shrq	$63, %rax
	addq	%rsi, %rax
	sarq	%rax
	ret
	.cfi_endproc
.LFE39:
	.size	fun, .-fun
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld"
.LC1:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB40:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	8(%rsp), %rdx
	movq	16(%rsp), %rax
	leaq	(%rdx,%rdx), %rcx
	cmpq	%rcx, %rax
	jle	.L11
	subq	%rcx, %rax
	sarq	$2, %rax
	leaq	(%rax,%rdx), %r8
.L8:
	xorl	%eax, %eax
	movq	%r8, %rdx
	movl	$1, %edi
	leaq	.LC1(%rip), %rsi
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L11:
	.cfi_restore_state
	movl	$2, %ecx
	cqto
	idivq	%rcx
	movq	%rax, %r8
	jmp	.L8
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE40:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```