#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*/ scanf(char *, int *, int *);
int main() {
  void swap(int *p1, int *p2);
  int a, b;
  int *pointer1, *pointer2;
  printf("please enter two number:a , b:\n");
  scanf("%d,%d", &a, &b);
  pointer1 = &a;
  pointer2 = &b;
  if (a < b)
    swap(pointer1, pointer2);
  printf("max=%d,min=%d\n", a, b);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecc(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1040 <scanf@plt>
lea    -0x8(%rbp),%rax
mov    %rax,-0x18(%rbp)
lea    -0xc(%rbp),%rax
mov    %rax,-0x20(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    118a <main+0x5a>
mov    -0x18(%rbp),%rdi
mov    -0x20(%rbp),%rsi
call   1050 <swap@plt>
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
lea    0xe8f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xecd(%rip),%rdi
call   1030 <puts@plt>
lea    0xeac(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1050 <scanf@plt>
mov    0x4(%rsp),%esi
mov    (%rsp),%edx
cmp    %edx,%esi
jge    1180 <main+0x40>
lea    0x4(%rsp),%rdi
mov    %rsp,%rsi
call   1060 <swap@plt>
mov    0x4(%rsp),%esi
mov    (%rsp),%edx
lea    0xe7f(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [32 x i8] c"please enter two number:a , b:\0A\00"
@.str.1 = [6 x i8] c"%d,%d\00"
@.str.2 = [15 x i8] c"max=%d,min=%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32*
%5 = alloca i32*
store i32 0, i32* %1
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32* %2, i32* %3)
store i32* %2, i32** %4
store i32* %3, i32** %5
%8 = load i32, i32* %2
%9 = load i32, i32* %3
%10 = icmp slt i32 %8, %9
br i1 %10, label %11, label %14
11: ; preds = %0
%12 = load i32*, i32** %4
%13 = load i32*, i32** %5
br label %14
14: ; preds = %11, %0
%15 = load i32, i32* %2
%16 = load i32, i32* %3
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0), i32 %15, i32 %16)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [6 x i8] c"%d,%d\00"
@.str.2 = [15 x i8] c"max=%d,min=%d\0A\00"
@str = [31 x i8] c"please enter two number:a , b:\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
%4 = bitcast i32* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32* %1, i32* %2)
%7 = load i32, i32* %1
%8 = load i32, i32* %2
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %13
10: ; preds = %0
%11 = load i32, i32* %1
%12 = load i32, i32* %2
br label %13
13: ; preds = %10, %0
%14 = phi i32 [ %12, %10 ], [ %8, %0 ]
%15 = phi i32 [ %11, %10 ], [ %7, %0 ]
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0), i32 %15, i32 %14)
ret i32 0
}