#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 maxi(int, int);
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);
  max = maxi(a, b);
  max = maxi(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    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec8(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
lea    -0x10(%rbp),%rcx
call   1040 <scanf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1050 <maxi@plt>
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%edi
mov    -0x10(%rbp),%esi
call   1050 <maxi@plt>
mov    %eax,-0x14(%rbp)
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
mov    -0x10(%rbp),%ecx
mov    -0x14(%rbp),%r8d
lea    0xe8e(%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    0xec5(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xed3(%rip),%rdi
lea    0x14(%rsp),%rsi
lea    0x10(%rsp),%rdx
lea    0xc(%rsp),%rcx
call   1040 <scanf@plt>
mov    0x14(%rsp),%edi
mov    0x10(%rsp),%esi
call   1050 <maxi@plt>
mov    0xc(%rsp),%esi
mov    %eax,%edi
call   1050 <maxi@plt>
mov    0x14(%rsp),%esi
mov    0x10(%rsp),%edx
mov    0xc(%rsp),%ecx
lea    0xe9b(%rip),%rdi
mov    %eax,%r8d
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 = call i32 @maxi(i32 %8, i32 %9)
store i32 %10, i32* %5
%11 = load i32, i32* %5
%12 = load i32, i32* %4
%13 = call i32 @maxi(i32 %11, i32 %12)
store i32 %13, i32* %5
%14 = load i32, i32* %2
%15 = load i32, i32* %3
%16 = load i32, i32* %4
%17 = load i32, i32* %5
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.2, i64 0, i64 0), i32 %14, i32 %15, i32 %16, i32 %17)
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 = call i32 @maxi(i32 %9, i32 %10)
%12 = load i32, i32* %3
%13 = call i32 @maxi(i32 %11, i32 %12)
%14 = load i32, i32* %1
%15 = load i32, i32* %2
%16 = load i32, i32* %3
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @.str.2, i64 0, i64 0), i32 %14, i32 %15, i32 %16, i32 %13)
ret i32 0
}