int max(int a, int b)
{
    if(a>b)
        return a;
    else
        return b;
}

max:
.LFB0:
        .cfi_startproc
        pushq   %rbp
        .cfi_def_cfa_offset 16
        .cfi_offset 6, -16
        movq    %rsp, %rbp
        .cfi_def_cfa_register 6
        movl    %edi, -4(%rbp)
        movl    %esi, -8(%rbp)
        movl    -4(%rbp), %eax
        cmpl    -8(%rbp), %eax
        jle     .L2
        movl    -4(%rbp), %eax
        jmp     .L3
.L2:
        movl    -8(%rbp), %eax
.L3:
        popq    %rbp
        .cfi_def_cfa 7, 8
        ret
        .cfi_endproc

max:
.LFB23:
        .cfi_startproc
        cmpl    %esi, %edi
        movl    %esi, %eax
        cmovge  %edi, %eax
        ret
        .cfi_endproc

int max1(int a, int b)
{
    return a*(a>b)+b*(a<=b);
}

max1:
.LFB24:
        .cfi_startproc
        xorl    %eax, %eax
        cmpl    %esi, %edi
        setg    %al
        imull   %edi, %eax
        movl    %eax, %edx
        xorl    %eax, %eax
        cmpl    %esi, %edi
        setle   %al
        imull   %eax, %esi
        leal    (%rdx,%rsi), %eax
        ret
        .cfi_endproc

int toUpper(char *buf)
{
    char *pointer=buf;
    while(*pointer!=0)
    {
        char pointedAt=*pointer;
        if((pointedAt>='a')&&(pointedAt<='z'))
        {
            *pointer=pointedAt-32;
        }
        ++pointer;
    }
}
int toUpper1(char *buf)
{
    char *pointer=buf;
    while(*pointer!=0)
    {
        char pointedAt=*pointer;
        int a=((pointedAt>='a')&&(pointedAt<='z'));
        *pointer=pointedAt-(32*a);
        ++pointer;
    }
}

toUpper:
.LFB25:
        .cfi_startproc
.L10:
        movzbl  (%rdi), %eax
        testb   %al, %al
        je      .L6
.L5:
        leal    -97(%rax), %edx
        cmpb    $25, %dl
        ja      .L7
        subl    $32, %eax
        addq    $1, %rdi
        movb    %al, -1(%rdi)
        movzbl  (%rdi), %eax
        testb   %al, %al
        jne     .L5
.L6:
        rep ret
        .p2align 4,,10
        .p2align 3
.L7:
        addq    $1, %rdi
        jmp     .L10
        .cfi_endproc

toUpper1:
.LFB26:
        .cfi_startproc
        jmp     .L18
        .p2align 4,,10
        .p2align 3
.L13:
        leal    -97(%rax), %edx
        cmpb    $25, %dl
        setbe   %dl
        addq    $1, %rdi
        sall    $5, %edx
        subl    %edx, %eax
        movb    %al, -1(%rdi)
.L18:
        movzbl  (%rdi), %eax
        testb   %al, %al
        jne     .L13
        rep ret
        .cfi_endproc