#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ puts(char *);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int x = 0, y = 0;
  puts("请输入两个整数");
  printf("整数A：");
  scanf("%d", &x);
  printf("整数B：");
  scanf("%d", &y);
  if (x == y) {
    printf("A和B相等\n");
  } else if (x < y) {
    printf("A小于B\n");
  } else {
    printf("A大于B\n");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xeac(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb6(%rip),%rdi
call   1040 <printf@plt>
lea    0xeb5(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
lea    0xea8(%rip),%rdi
call   1040 <printf@plt>
lea    0xe99(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jne    11ae <main+0x7e>
lea    0xe8b(%rip),%rdi
call   1040 <printf@plt>
jmp    11dc <main+0xac>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    11cb <main+0x9b>
lea    0xe7b(%rip),%rdi
call   1040 <printf@plt>
jmp    11d7 <main+0xa7>
lea    0xe74(%rip),%rdi
call   1040 <printf@plt>
jmp    11dc <main+0xac>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
movl   $0x0,0xc(%rsp)
movl   $0x0,0x8(%rsp)
lea    0xeb4(%rip),%rdi
call   1030 <puts@plt>
lea    0xebe(%rip),%rdi
call   1040 <printf@plt>
lea    0xebd(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xeac(%rip),%rdi
call   1040 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0xc(%rsp),%eax
cmp    0x8(%rsp),%eax
lea    0xe9f(%rip),%rax
lea    0xe8f(%rip),%rcx
cmovl  %rax,%rcx
lea    0xe96(%rip),%rdi
cmovne %rcx,%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [22 x i8] c"\E8\AF\B7\E8\BE\93\E5\85\A5\E4\B8\A4\E4\B8\AA\E6\95\B4\E6\95\B0\00"
@.str.1 = [11 x i8] c"\E6\95\B4\E6\95\B0A\EF\BC\9A\00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [11 x i8] c"\E6\95\B4\E6\95\B0B\EF\BC\9A\00"
@.str.4 = [13 x i8] c"A\E5\92\8CB\E7\9B\B8\E7\AD\89\0A\00"
@.str.5 = [10 x i8] c"A\E5\B0\8F\E4\BA\8EB\0A\00"
@.str.6 = [10 x i8] c"A\E5\A4\A7\E4\BA\8EB\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
store i32 0, i32* %3
%4 = call i32 @puts(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%7 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %3)
%9 = load i32, i32* %2
%10 = load i32, i32* %3
%11 = icmp eq i32 %9, %10
br i1 %11, label %12, label %14
12: ; preds = %0
%13 = call i32 @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0))
br label %23
14: ; preds = %0
%15 = load i32, i32* %2
%16 = load i32, i32* %3
%17 = icmp slt i32 %15, %16
br i1 %17, label %18, label %20
18: ; preds = %14
%19 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.5, i64 0, i64 0))
br label %22
20: ; preds = %14
%21 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.6, i64 0, i64 0))
br label %22
22: ; preds = %20, %18
br label %23
23: ; preds = %22, %12
ret i32 0
}

LLVM IR (-O2):
@.str = [22 x i8] c"\E8\AF\B7\E8\BE\93\E5\85\A5\E4\B8\A4\E4\B8\AA\E6\95\B4\E6\95\B0\00"
@.str.1 = [11 x i8] c"\E6\95\B4\E6\95\B0A\EF\BC\9A\00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [11 x i8] c"\E6\95\B4\E6\95\B0B\EF\BC\9A\00"
@str = [9 x i8] c"A\E5\A4\A7\E4\BA\8EB\00"
@str.7 = [9 x i8] c"A\E5\B0\8F\E4\BA\8EB\00"
@str.8 = [12 x i8] c"A\E5\92\8CB\E7\9B\B8\E7\AD\89\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
store i32 0, i32* %1
%4 = bitcast i32* %2 to i8*
store i32 0, i32* %2
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0))
%6 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%8 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%10 = load i32, i32* %1
%11 = load i32, i32* %2
%12 = icmp eq i32 %10, %11
%13 = icmp slt i32 %10, %11
%14 = select i1 %13, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @str.7, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @str, i64 0, i64 0)
%15 = select i1 %12, i8* getelementptr inbounds ([12 x i8], [12 x i8]* @str.8, i64 0, i64 0), i8* %14
%16 = call i32 @puts(i8* dereferenceable(1) %15)
ret i32 0
}