#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 Fibonacci(int);
int atoi(char *);
int /*<<< orphan*/ printf(char *, int);
int main(int argc, char **argv) {
  int n, i = 0, c;
  n = atoi(argv[1]);
  printf("Fibonacci series %d\n", n);
  for (c = 1; c <= n; c++) {
    printf("%d\n", Fibonacci(i));
    i++;
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
movl   $0x0,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1050 <atoi@plt>
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%esi
lea    0xe99(%rip),%rdi
call   1040 <printf@plt>
movl   $0x1,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0x14(%rbp),%eax
jg     11ac <main+0x7c>
mov    -0x18(%rbp),%edi
call   1030 <Fibonacci@plt>
mov    %eax,%esi
lea    0xe81(%rip),%rdi
call   1040 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    1173 <main+0x43>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
mov    0x8(%rsi),%rdi
call   1050 <atoi@plt>
mov    %eax,%ebx
lea    0xeba(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
test   %ebx,%ebx
jle    1178 <main+0x48>
xor    %ebp,%ebp
lea    0xeb7(%rip),%r14
nopw   0x0(%rax,%rax,1)
mov    %ebp,%edi
call   1030 <Fibonacci@plt>
mov    %r14,%rdi
mov    %eax,%esi
call   1040 <printf@plt>
add    $0x1,%ebp
cmp    %ebp,%ebx
jne    1160 <main+0x30>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret

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

LLVM IR (-O2):
@.str = [21 x i8] c"Fibonacci series %d\0A\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = getelementptr inbounds i8*, i8** %1, i64 1
%4 = load i8*, i8** %3
%5 = tail call i32 @atoi(i8* %4)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0), i32 %5)
%7 = icmp slt i32 %5, 1
br i1 %7, label %14, label %8
8: ; preds = %2, %8
%9 = phi i32 [ %12, %8 ], [ 0, %2 ]
%10 = tail call i32 @Fibonacci(i32 %9)
%11 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %10)
%12 = add nuw nsw i32 %9, 1
%13 = icmp eq i32 %12, %5
br i1 %13, label %14, label %8
14: ; preds = %8, %2
ret i32 0
}