#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 main() {
  int n;
  unsigned long res = 3;
  unsigned long fn = 2;
  unsigned long sn = 1;
  printf("%lu,%lu,", fn, sn);
  for (n = 1; n <= 100; n += 1) {
    res = fn + sn;
    printf("%lu,", res);
    fn = sn;
    sn = res;
  }
  printf("\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movq   $0x3,-0x10(%rbp)
movq   $0x2,-0x18(%rbp)
movq   $0x1,-0x20(%rbp)
mov    -0x18(%rbp),%rsi
mov    -0x20(%rbp),%rdx
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x8(%rbp)
cmpl   $0x64,-0x8(%rbp)
jg     119a <main+0x8a>
mov    -0x18(%rbp),%rax
add    -0x20(%rbp),%rax
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rsi
lea    0xe8f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x20(%rbp),%rax
mov    %rax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    %rax,-0x20(%rbp)
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1154 <main+0x44>
lea    0xe68(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
lea    0xed1(%rip),%rdi
mov    $0x2,%ebx
mov    $0x1,%r15d
mov    $0x2,%esi
mov    $0x1,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0x64,%ebp
lea    0xead(%rip),%r14
nopw   0x0(%rax,%rax,1)
mov    %r15,%r12
add    %r15,%rbx
mov    %r14,%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%r15
mov    %r12,%rbx
add    $0xffffffff,%ebp
jne    1160 <main+0x40>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [9 x i8] c"%lu,%lu,\00"
@.str.1 = [5 x i8] c"%lu,\00"
@.str.2 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i64
%4 = alloca i64
%5 = alloca i64
store i32 0, i32* %1
store i64 3, i64* %3
store i64 2, i64* %4
store i64 1, i64* %5
%6 = load i64, i64* %4
%7 = load i64, i64* %5
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i64 %6, i64 %7)
store i32 1, i32* %2
br label %9
9: ; preds = %20, %0
%10 = load i32, i32* %2
%11 = icmp sle i32 %10, 100
br i1 %11, label %12, label %23
12: ; preds = %9
%13 = load i64, i64* %4
%14 = load i64, i64* %5
%15 = add i64 %13, %14
store i64 %15, i64* %3
%16 = load i64, i64* %3
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i64 %16)
%18 = load i64, i64* %5
store i64 %18, i64* %4
%19 = load i64, i64* %3
store i64 %19, i64* %5
br label %20
20: ; preds = %12
%21 = load i32, i32* %2
%22 = add nsw i32 %21, 1
store i32 %22, i32* %2
br label %9
23: ; preds = %9
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [9 x i8] c"%lu,%lu,\00"
@.str.1 = [5 x i8] c"%lu,\00"
define i32 @main() {
%1 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i64 2, i64 1)
br label %2
2: ; preds = %0, %2
%3 = phi i64 [ 1, %0 ], [ %6, %2 ]
%4 = phi i64 [ 2, %0 ], [ %3, %2 ]
%5 = phi i32 [ 1, %0 ], [ %8, %2 ]
%6 = add i64 %3, %4
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i64 %6)
%8 = add nuw nsw i32 %5, 1
%9 = icmp eq i32 %8, 101
br i1 %9, label %10, label %2
10: ; preds = %2
%11 = tail call i32 @putchar(i32 10)
ret i32 0
}