#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 *);
int main() {
  int a, b, c;
  int max;
  printf("Please input three numbers:");
  scanf("%d%d%d", &a, &b, &c);
  if (a > b) {
    max = a;
  } else {
    max = b;
  }
  if (max < c) {
    max = c;
  }
  printf("the maximum number of %d, %d, %d is %d\n", a, b, c, max);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed8(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
lea    -0x10(%rbp),%rcx
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jle    116c <main+0x4c>
mov    -0x8(%rbp),%eax
mov    %eax,-0x14(%rbp)
jmp    1172 <main+0x52>
mov    -0xc(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x10(%rbp),%eax
jge    1184 <main+0x64>
mov    -0x10(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
mov    -0x10(%rbp),%ecx
mov    -0x14(%rbp),%r8d
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x18,%rsp
lea    0xed5(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee3(%rip),%rdi
lea    0x14(%rsp),%rsi
lea    0x10(%rsp),%rdx
lea    0xc(%rsp),%rcx
call   1040 <scanf@plt>
mov    0x14(%rsp),%esi
mov    0x10(%rsp),%edx
cmp    %edx,%esi
mov    %edx,%r8d
cmovg  %esi,%r8d
mov    0xc(%rsp),%ecx
cmp    %ecx,%r8d
cmovl  %ecx,%r8d
lea    0xeb3(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [28 x i8] c"Please input three numbers:\00"
@.str.1 = [7 x i8] c"%d%d%d\00"
@.str.2 = [40 x i8] c"the maximum number of %d, %d, %d is %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 ([28 x i8], [28 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32* %2, i32* %3, i32* %4)
%8 = load i32, i32* %2
%9 = load i32, i32* %3
%10 = icmp sgt i32 %8, %9
br i1 %10, label %11, label %13
11: ; preds = %0
%12 = load i32, i32* %2
store i32 %12, i32* %5
br label %15
13: ; preds = %0
%14 = load i32, i32* %3
store i32 %14, i32* %5
br label %15
15: ; preds = %13, %11
%16 = load i32, i32* %5
%17 = load i32, i32* %4
%18 = icmp slt i32 %16, %17
br i1 %18, label %19, label %21
19: ; preds = %15
%20 = load i32, i32* %4
store i32 %20, i32* %5
br label %21
21: ; preds = %19, %15
%22 = load i32, i32* %2
%23 = load i32, i32* %3
%24 = load i32, i32* %4
%25 = load i32, i32* %5
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.2, i64 0, i64 0), i32 %22, i32 %23, i32 %24, i32 %25)
ret i32 0
}

LLVM IR (-O2):
@.str = [28 x i8] c"Please input three numbers:\00"
@.str.1 = [7 x i8] c"%d%d%d\00"
@.str.2 = [40 x i8] c"the maximum number of %d, %d, %d is %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = bitcast i32* %1 to i8*
%5 = bitcast i32* %2 to i8*
%6 = bitcast i32* %3 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32* %1, i32* %2, i32* %3)
%9 = load i32, i32* %1
%10 = load i32, i32* %2
%11 = icmp sgt i32 %9, %10
%12 = select i1 %11, i32 %9, i32 %10
%13 = load i32, i32* %3
%14 = icmp slt i32 %12, %13
%15 = select i1 %14, i32 %13, i32 %12
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @.str.2, i64 0, i64 0), i32 %9, i32 %10, i32 %13, i32 %15)
ret i32 0
}