#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 fib(int);
int /*<<< orphan*/ initialize_array();
int /*<<< orphan*/ printf(char *, ...);
int main(void) {
  int idx, bound;
  bound = 32;
  initialize_array();
  idx = 0;
  printf("The first few digits of the Fibonacci sequence are:\n");
  while (idx < bound) {
    printf("%d\n", fib(idx));
    idx = idx + 1;
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x20,-0xc(%rbp)
mov    $0x0,%al
call   1040 <initialize_array@plt>
movl   $0x0,-0x8(%rbp)
lea    0xea5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1194 <main+0x64>
mov    -0x8(%rbp),%edi
call   1050 <fib@plt>
mov    %eax,%esi
lea    0xeb6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1162 <main+0x32>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
xor    %eax,%eax
call   1050 <initialize_array@plt>
lea    0xeb3(%rip),%rdi
call   1030 <puts@plt>
lea    0xea3(%rip),%rbx
xor    %ebp,%ebp
nop
mov    %ebp,%edi
call   1060 <fib@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%ebp
cmp    $0x20,%ebp
jne    1160 <main+0x20>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [53 x i8] c"The first few digits of the Fibonacci sequence are:\0A\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 32, i32* %3
%4 = call i32 (...) @initialize_array()
store i32 0, i32* %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([53 x i8], [53 x i8]* @.str, i64 0, i64 0))
br label %6
6: ; preds = %10, %0
%7 = load i32, i32* %2
%8 = load i32, i32* %3
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %16
10: ; preds = %6
%11 = load i32, i32* %2
%12 = call i32 @fib(i32 %11)
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %12)
%14 = load i32, i32* %2
%15 = add nsw i32 %14, 1
store i32 %15, i32* %2
br label %6
16: ; preds = %6
%17 = load i32, i32* %1
ret i32 %17
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%d\0A\00"
@str = [52 x i8] c"The first few digits of the Fibonacci sequence are:\00"
define i32 @main() {
%1 = tail call i32 (...) @initialize_array()
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([52 x i8], [52 x i8]* @str, i64 0, i64 0))
br label %3
3: ; preds = %0, %3
%4 = phi i32 [ 0, %0 ], [ %7, %3 ]
%5 = tail call i32 @fib(i32 %4)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %5)
%7 = add nuw nsw i32 %4, 1
%8 = icmp eq i32 %7, 32
br i1 %8, label %9, label %3
9: ; preds = %3
ret i32 0
}