#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 *, unsigned long, ...);
int main() {
  long unsigned int a, b, c;
  a = 2;
  b = 1;
  int i;
  printf("%lu, %lu,", a, b);
  for (i = 2; i <= 100; i++) {
    c = b;
    b = b + a;
    a = c;
    printf(", %lu", b);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
movq   $0x2,-0x10(%rbp)
movq   $0x1,-0x18(%rbp)
mov    -0x10(%rbp),%rsi
mov    -0x18(%rbp),%rdx
lea    0xec2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x2,-0x24(%rbp)
cmpl   $0x64,-0x24(%rbp)
jg     1192 <main+0x82>
mov    -0x18(%rbp),%rax
mov    %rax,-0x20(%rbp)
mov    -0x18(%rbp),%rax
add    -0x10(%rbp),%rax
mov    %rax,-0x18(%rbp)
mov    -0x20(%rbp),%rax
mov    %rax,-0x10(%rbp)
mov    -0x18(%rbp),%rsi
lea    0xe8d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x24(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x24(%rbp)
jmp    114c <main+0x3c>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
lea    0xee1(%rip),%rdi
mov    $0x2,%r12d
mov    $0x1,%r15d
mov    $0x2,%esi
mov    $0x1,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    $0x63,%ebp
lea    0xec2(%rip),%r14
nopl   0x0(%rax,%rax,1)
mov    %r12,%rbx
add    %r15,%rbx
mov    %r14,%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r15,%r12
mov    %rbx,%r15
add    $0xffffffff,%ebp
jne    1150 <main+0x40>
xor    %eax,%eax
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
ret

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

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