#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*/ checker(int, int);
int main() {
  int i = 0;
  int j = 0;
  for (i = 0; i < 5; i++) {
    for (j = 0; j < 5; j++) {
      checker(i, j);
    }
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
movl   $0x0,-0x8(%rbp)
cmpl   $0x5,-0x8(%rbp)
jge    117b <main+0x6b>
movl   $0x0,-0xc(%rbp)
cmpl   $0x5,-0xc(%rbp)
jge    1168 <main+0x58>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1030 <checker@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1145 <main+0x35>
jmp    116d <main+0x5d>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1134 <main+0x24>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %edi,%edi
xor    %esi,%esi
call   1030 <checker@plt>
xor    %edi,%edi
mov    $0x1,%esi
call   1030 <checker@plt>
xor    %edi,%edi
mov    $0x2,%esi
call   1030 <checker@plt>
xor    %edi,%edi
mov    $0x3,%esi
call   1030 <checker@plt>
xor    %edi,%edi
mov    $0x4,%esi
call   1030 <checker@plt>
mov    $0x1,%edi
xor    %esi,%esi
call   1030 <checker@plt>
mov    $0x1,%edi
mov    $0x1,%esi
call   1030 <checker@plt>
mov    $0x1,%edi
mov    $0x2,%esi
call   1030 <checker@plt>
mov    $0x1,%edi
mov    $0x3,%esi
call   1030 <checker@plt>
mov    $0x1,%edi
mov    $0x4,%esi
call   1030 <checker@plt>
mov    $0x2,%edi
xor    %esi,%esi
call   1030 <checker@plt>
mov    $0x2,%edi
mov    $0x1,%esi
call   1030 <checker@plt>
mov    $0x2,%edi
mov    $0x2,%esi
call   1030 <checker@plt>
mov    $0x2,%edi
mov    $0x3,%esi
call   1030 <checker@plt>
mov    $0x2,%edi
mov    $0x4,%esi
call   1030 <checker@plt>
mov    $0x3,%edi
xor    %esi,%esi
call   1030 <checker@plt>
mov    $0x3,%edi
mov    $0x1,%esi
call   1030 <checker@plt>
mov    $0x3,%edi
mov    $0x2,%esi
call   1030 <checker@plt>
mov    $0x3,%edi
mov    $0x3,%esi
call   1030 <checker@plt>
mov    $0x3,%edi
mov    $0x4,%esi
call   1030 <checker@plt>
mov    $0x4,%edi
xor    %esi,%esi
call   1030 <checker@plt>
mov    $0x4,%edi
mov    $0x1,%esi
call   1030 <checker@plt>
mov    $0x4,%edi
mov    $0x2,%esi
call   1030 <checker@plt>
mov    $0x4,%edi
mov    $0x3,%esi
call   1030 <checker@plt>
mov    $0x4,%edi
mov    $0x4,%esi
call   1030 <checker@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
store i32 0, i32* %3
store i32 0, i32* %2
br label %4
4: ; preds = %19, %0
%5 = load i32, i32* %2
%6 = icmp slt i32 %5, 5
br i1 %6, label %7, label %22
7: ; preds = %4
store i32 0, i32* %3
br label %8
8: ; preds = %15, %7
%9 = load i32, i32* %3
%10 = icmp slt i32 %9, 5
br i1 %10, label %11, label %18
11: ; preds = %8
%12 = load i32, i32* %2
%13 = load i32, i32* %3
%14 = call i32 @checker(i32 %12, i32 %13)
br label %15
15: ; preds = %11
%16 = load i32, i32* %3
%17 = add nsw i32 %16, 1
store i32 %17, i32* %3
br label %8
18: ; preds = %8
br label %19
19: ; preds = %18
%20 = load i32, i32* %2
%21 = add nsw i32 %20, 1
store i32 %21, i32* %2
br label %4
22: ; preds = %4
%23 = load i32, i32* %1
ret i32 %23
}

LLVM IR (-O2):
define i32 @main() {
%1 = tail call i32 @checker(i32 0, i32 0)
%2 = tail call i32 @checker(i32 0, i32 1)
%3 = tail call i32 @checker(i32 0, i32 2)
%4 = tail call i32 @checker(i32 0, i32 3)
%5 = tail call i32 @checker(i32 0, i32 4)
%6 = tail call i32 @checker(i32 1, i32 0)
%7 = tail call i32 @checker(i32 1, i32 1)
%8 = tail call i32 @checker(i32 1, i32 2)
%9 = tail call i32 @checker(i32 1, i32 3)
%10 = tail call i32 @checker(i32 1, i32 4)
%11 = tail call i32 @checker(i32 2, i32 0)
%12 = tail call i32 @checker(i32 2, i32 1)
%13 = tail call i32 @checker(i32 2, i32 2)
%14 = tail call i32 @checker(i32 2, i32 3)
%15 = tail call i32 @checker(i32 2, i32 4)
%16 = tail call i32 @checker(i32 3, i32 0)
%17 = tail call i32 @checker(i32 3, i32 1)
%18 = tail call i32 @checker(i32 3, i32 2)
%19 = tail call i32 @checker(i32 3, i32 3)
%20 = tail call i32 @checker(i32 3, i32 4)
%21 = tail call i32 @checker(i32 4, i32 0)
%22 = tail call i32 @checker(i32 4, i32 1)
%23 = tail call i32 @checker(i32 4, i32 2)
%24 = tail call i32 @checker(i32 4, i32 3)
%25 = tail call i32 @checker(i32 4, i32 4)
ret i32 0
}