#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() {
  int a, b, c;
  printf("Input three numbers: ");
  scanf("%d %d %d", &a, &b, &c);
  printf("Largest: %d\n", ((a) > (b)   ? (a) > (c) ? (a) : (c)
                             : (b) > (c) ? (b)
                                       : (c)));
}


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    0xed2(%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    1189 <main+0x69>
mov    -0x8(%rbp),%eax
cmp    -0x10(%rbp),%eax
jle    1178 <main+0x58>
mov    -0x8(%rbp),%eax
mov    %eax,-0x14(%rbp)
jmp    117e <main+0x5e>
mov    -0x10(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%eax
mov    %eax,-0x18(%rbp)
jmp    11ac <main+0x8c>
mov    -0xc(%rbp),%eax
cmp    -0x10(%rbp),%eax
jle    11a0 <main+0x80>
mov    -0xc(%rbp),%eax
mov    %eax,-0x1c(%rbp)
jmp    11a6 <main+0x86>
mov    -0x10(%rbp),%eax
mov    %eax,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x18(%rbp),%esi
lea    0xe69(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%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    0xedd(%rip),%rdi
lea    0x14(%rsp),%rsi
lea    0x10(%rsp),%rdx
lea    0xc(%rsp),%rcx
call   1040 <scanf@plt>
mov    0x14(%rsp),%eax
mov    0x10(%rsp),%esi
cmp    %esi,%eax
cmovg  %eax,%esi
mov    0xc(%rsp),%eax
cmp    %eax,%esi
cmovle %eax,%esi
lea    0xeb5(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [22 x i8] c"Input three numbers: \00"
@.str.1 = [9 x i8] c"%d %d %d\00"
@.str.2 = [13 x i8] c"Largest: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i32* %2, i32* %3, i32* %4)
%7 = load i32, i32* %2
%8 = load i32, i32* %3
%9 = icmp sgt i32 %7, %8
br i1 %9, label %10, label %20
10: ; preds = %0
%11 = load i32, i32* %2
%12 = load i32, i32* %4
%13 = icmp sgt i32 %11, %12
br i1 %13, label %14, label %16
14: ; preds = %10
%15 = load i32, i32* %2
br label %18
16: ; preds = %10
%17 = load i32, i32* %4
br label %18
18: ; preds = %16, %14
%19 = phi i32 [ %15, %14 ], [ %17, %16 ]
br label %30
20: ; preds = %0
%21 = load i32, i32* %3
%22 = load i32, i32* %4
%23 = icmp sgt i32 %21, %22
br i1 %23, label %24, label %26
24: ; preds = %20
%25 = load i32, i32* %3
br label %28
26: ; preds = %20
%27 = load i32, i32* %4
br label %28
28: ; preds = %26, %24
%29 = phi i32 [ %25, %24 ], [ %27, %26 ]
br label %30
30: ; preds = %28, %18
%31 = phi i32 [ %19, %18 ], [ %29, %28 ]
%32 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i32 %31)
%33 = load i32, i32* %1
ret i32 %33
}

LLVM IR (-O2):
@.str = [22 x i8] c"Input three numbers: \00"
@.str.1 = [9 x i8] c"%d %d %d\00"
@.str.2 = [13 x i8] c"Largest: %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 ([22 x i8], [22 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([9 x i8], [9 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 = load i32, i32* %3
%13 = select i1 %11, i32 %9, i32 %10
%14 = icmp sgt i32 %13, %12
%15 = select i1 %14, i32 %13, i32 %12
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i32 %15)
ret i32 0
}