#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);
void main() {
  const int LIMIT = 4000000;
  int lowerTerm = 1;
  int higherTerm = 2;
  int total = 0;
  int temp;
  do {
    if (higherTerm % 2 == 0) {
      total += higherTerm;
    }
    temp = higherTerm;
    higherTerm = lowerTerm + higherTerm;
    lowerTerm = temp;
  } while (higherTerm <= LIMIT);
  printf("%d\n", total);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x3d0900,-0x4(%rbp)
movl   $0x1,-0x8(%rbp)
movl   $0x2,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0xc(%rbp),%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
jne    1151 <main+0x41>
mov    -0xc(%rbp),%eax
add    -0x10(%rbp),%eax
mov    %eax,-0x10(%rbp)
mov    -0xc(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0x8(%rbp),%eax
add    -0xc(%rbp),%eax
mov    %eax,-0xc(%rbp)
mov    -0x14(%rbp),%eax
mov    %eax,-0x8(%rbp)
cmpl   $0x3d0900,-0xc(%rbp)
jle    1134 <main+0x24>
mov    -0x10(%rbp),%esi
lea    0xe83(%rip),%rdi
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
mov    $0x1,%eax
xor    %esi,%esi
mov    $0x2,%ecx
nopl   0x0(%rax)
mov    %ecx,%edx
test   $0x1,%dl
mov    $0x0,%ecx
cmove  %edx,%ecx
add    %ecx,%esi
add    %edx,%eax
mov    %eax,%ecx
cmp    $0x3d0901,%eax
mov    %edx,%eax
jl     1120 <main+0x10>
lea    0xebd(%rip),%rdi
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [4 x i8] c"%d\0A\00"
define void @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 4000000, i32* %1
store i32 1, i32* %2
store i32 2, i32* %3
store i32 0, i32* %4
br label %6
6: ; preds = %20, %0
%7 = load i32, i32* %3
%8 = srem i32 %7, 2
%9 = icmp eq i32 %8, 0
br i1 %9, label %10, label %14
10: ; preds = %6
%11 = load i32, i32* %3
%12 = load i32, i32* %4
%13 = add nsw i32 %12, %11
store i32 %13, i32* %4
br label %14
14: ; preds = %10, %6
%15 = load i32, i32* %3
store i32 %15, i32* %5
%16 = load i32, i32* %2
%17 = load i32, i32* %3
%18 = add nsw i32 %16, %17
store i32 %18, i32* %3
%19 = load i32, i32* %5
store i32 %19, i32* %2
br label %20
20: ; preds = %14
%21 = load i32, i32* %3
%22 = icmp sle i32 %21, 4000000
br i1 %22, label %6, label %23
23: ; preds = %20
%24 = load i32, i32* %4
%25 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %24)
ret void
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d\0A\00"
define void @main() {
br label %1
1: ; preds = %1, %0
%2 = phi i32 [ 2, %0 ], [ %9, %1 ]
%3 = phi i32 [ 0, %0 ], [ %8, %1 ]
%4 = phi i32 [ 1, %0 ], [ %2, %1 ]
%5 = and i32 %2, 1
%6 = icmp eq i32 %5, 0
%7 = select i1 %6, i32 %2, i32 0
%8 = add nsw i32 %7, %3
%9 = add nsw i32 %4, %2
%10 = icmp slt i32 %9, 4000001
br i1 %10, label %1, label %11
11: ; preds = %1
%12 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %8)
ret void
}