#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*/ assert(int);
int fibonacci(int);
void main() {
  assert(fibonacci(0) == 0);
  assert(fibonacci(1) == 1);
  assert(fibonacci(2) == 1);
  assert(fibonacci(3) == 2);
  assert(fibonacci(4) == 3);
  assert(fibonacci(5) == 5);
  assert(fibonacci(6) == 8);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
xor    %edi,%edi
call   1040 <fibonacci@plt>
cmp    $0x0,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1030 <assert@plt>
mov    $0x1,%edi
call   1040 <fibonacci@plt>
cmp    $0x1,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1030 <assert@plt>
mov    $0x2,%edi
call   1040 <fibonacci@plt>
cmp    $0x1,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1030 <assert@plt>
mov    $0x3,%edi
call   1040 <fibonacci@plt>
cmp    $0x2,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1030 <assert@plt>
mov    $0x4,%edi
call   1040 <fibonacci@plt>
cmp    $0x3,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1030 <assert@plt>
mov    $0x5,%edi
call   1040 <fibonacci@plt>
cmp    $0x5,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1030 <assert@plt>
mov    $0x6,%edi
call   1040 <fibonacci@plt>
cmp    $0x8,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1030 <assert@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %edi,%edi
call   1040 <fibonacci@plt>
xor    %edi,%edi
test   %eax,%eax
sete   %dil
call   1030 <assert@plt>
mov    $0x1,%edi
call   1040 <fibonacci@plt>
xor    %edi,%edi
cmp    $0x1,%eax
sete   %dil
call   1030 <assert@plt>
mov    $0x2,%edi
call   1040 <fibonacci@plt>
xor    %edi,%edi
cmp    $0x1,%eax
sete   %dil
call   1030 <assert@plt>
mov    $0x3,%edi
call   1040 <fibonacci@plt>
xor    %edi,%edi
cmp    $0x2,%eax
sete   %dil
call   1030 <assert@plt>
mov    $0x4,%edi
call   1040 <fibonacci@plt>
xor    %edi,%edi
cmp    $0x3,%eax
sete   %dil
call   1030 <assert@plt>
mov    $0x5,%edi
call   1040 <fibonacci@plt>
xor    %edi,%edi
cmp    $0x5,%eax
sete   %dil
call   1030 <assert@plt>
mov    $0x6,%edi
call   1040 <fibonacci@plt>
xor    %edi,%edi
cmp    $0x8,%eax
sete   %dil
pop    %rax
jmp    1030 <assert@plt>

LLVM IR (-O0):
define void @main() {
%1 = call i32 @fibonacci(i32 0)
%2 = icmp eq i32 %1, 0
%3 = zext i1 %2 to i32
%4 = call i32 @assert(i32 %3)
%5 = call i32 @fibonacci(i32 1)
%6 = icmp eq i32 %5, 1
%7 = zext i1 %6 to i32
%8 = call i32 @assert(i32 %7)
%9 = call i32 @fibonacci(i32 2)
%10 = icmp eq i32 %9, 1
%11 = zext i1 %10 to i32
%12 = call i32 @assert(i32 %11)
%13 = call i32 @fibonacci(i32 3)
%14 = icmp eq i32 %13, 2
%15 = zext i1 %14 to i32
%16 = call i32 @assert(i32 %15)
%17 = call i32 @fibonacci(i32 4)
%18 = icmp eq i32 %17, 3
%19 = zext i1 %18 to i32
%20 = call i32 @assert(i32 %19)
%21 = call i32 @fibonacci(i32 5)
%22 = icmp eq i32 %21, 5
%23 = zext i1 %22 to i32
%24 = call i32 @assert(i32 %23)
%25 = call i32 @fibonacci(i32 6)
%26 = icmp eq i32 %25, 8
%27 = zext i1 %26 to i32
%28 = call i32 @assert(i32 %27)
ret void
}

LLVM IR (-O2):
define void @main() {
%1 = tail call i32 @fibonacci(i32 0)
%2 = icmp eq i32 %1, 0
%3 = zext i1 %2 to i32
%4 = tail call i32 @assert(i32 %3)
%5 = tail call i32 @fibonacci(i32 1)
%6 = icmp eq i32 %5, 1
%7 = zext i1 %6 to i32
%8 = tail call i32 @assert(i32 %7)
%9 = tail call i32 @fibonacci(i32 2)
%10 = icmp eq i32 %9, 1
%11 = zext i1 %10 to i32
%12 = tail call i32 @assert(i32 %11)
%13 = tail call i32 @fibonacci(i32 3)
%14 = icmp eq i32 %13, 2
%15 = zext i1 %14 to i32
%16 = tail call i32 @assert(i32 %15)
%17 = tail call i32 @fibonacci(i32 4)
%18 = icmp eq i32 %17, 3
%19 = zext i1 %18 to i32
%20 = tail call i32 @assert(i32 %19)
%21 = tail call i32 @fibonacci(i32 5)
%22 = icmp eq i32 %21, 5
%23 = zext i1 %22 to i32
%24 = tail call i32 @assert(i32 %23)
%25 = tail call i32 @fibonacci(i32 6)
%26 = icmp eq i32 %25, 8
%27 = zext i1 %26 to i32
%28 = tail call i32 @assert(i32 %27)
ret void
}