#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);
int main() {
  int i = 11;
  {
    int i = 13;
    printf("%d\n", i);
  }
  printf("%d\n", i);
  {
    int i = 13;
    printf("%d\n", i);
  }
  printf("%d\n", i);
  for (int i = 15; 0;)
    printf("%d\n", i);
  printf("%d\n", i);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0xb,-0x8(%rbp)
movl   $0xd,-0xc(%rbp)
mov    -0xc(%rbp),%esi
lea    0xec9(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xeba(%rip),%rdi
call   1030 <printf@plt>
movl   $0xd,-0x10(%rbp)
mov    -0x10(%rbp),%esi
lea    0xea4(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xe95(%rip),%rdi
call   1030 <printf@plt>
movl   $0xf,-0x14(%rbp)
xor    %eax,%eax
test   $0x1,%al
jne    1186 <main+0x76>
jmp    119a <main+0x8a>
mov    -0x14(%rbp),%esi
lea    0xe70(%rip),%rdi
call   1030 <printf@plt>
jmp    1177 <main+0x67>
mov    -0x8(%rbp),%esi
lea    0xe5c(%rip),%rdi
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xee8(%rip),%rbx
mov    %rbx,%rdi
mov    $0xd,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0xb,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0xd,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0xb,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0xb,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

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

LLVM IR (-O2):
@.str = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 13)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 11)
%3 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 13)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 11)
%5 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 11)
ret i32 0
}