#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, n = 5;
  int a, a_shared;
#pragma omp parallel for private(i) private(a) shared(a_shared)
  for (i = 0; i < n; i++) {
    a = i + 1;
    printf("Thread %d has a value of a = %d for i = %d\n", 0, a, i);
    if (i == n - 1)
      a_shared = a;
  }
  printf("Value of a after parallel for: a_shared = %d\n", a_shared);
  return (0);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x5,-0xc(%rbp)
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1182 <main+0x72>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
mov    -0x10(%rbp),%edx
mov    -0x8(%rbp),%ecx
lea    0xeb1(%rip),%rdi
xor    %esi,%esi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
mov    -0xc(%rbp),%ecx
sub    $0x1,%ecx
cmp    %ecx,%eax
jne    116f <main+0x5f>
mov    -0x10(%rbp),%eax
mov    %eax,-0x14(%rbp)
jmp    1174 <main+0x64>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    112d <main+0x1d>
mov    -0x14(%rbp),%esi
lea    0xea0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xee8(%rip),%rbx
mov    %rbx,%rdi
xor    %esi,%esi
mov    $0x1,%edx
xor    %ecx,%ecx
xor    %eax,%eax
call   1030 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
mov    $0x2,%edx
mov    $0x1,%ecx
xor    %eax,%eax
call   1030 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
mov    $0x3,%edx
mov    $0x2,%ecx
xor    %eax,%eax
call   1030 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
mov    $0x4,%edx
mov    $0x3,%ecx
xor    %eax,%eax
call   1030 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
mov    $0x5,%edx
mov    $0x4,%ecx
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xea2(%rip),%rdi
mov    $0x5,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [44 x i8] c"Thread %d has a value of a = %d for i = %d\0A\00"
@.str.1 = [46 x i8] c"Value of a after parallel for: a_shared = %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 5, i32* %3
store i32 0, i32* %2
br label %6
6: ; preds = %23, %0
%7 = load i32, i32* %2
%8 = load i32, i32* %3
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %26
10: ; preds = %6
%11 = load i32, i32* %2
%12 = add nsw i32 %11, 1
store i32 %12, i32* %4
%13 = load i32, i32* %4
%14 = load i32, i32* %2
%15 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 0, i32 %13, i32 %14)
%16 = load i32, i32* %2
%17 = load i32, i32* %3
%18 = sub nsw i32 %17, 1
%19 = icmp eq i32 %16, %18
br i1 %19, label %20, label %22
20: ; preds = %10
%21 = load i32, i32* %4
store i32 %21, i32* %5
br label %22
22: ; preds = %20, %10
br label %23
23: ; preds = %22
%24 = load i32, i32* %2
%25 = add nsw i32 %24, 1
store i32 %25, i32* %2
br label %6
26: ; preds = %6
%27 = load i32, i32* %5
%28 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str.1, i64 0, i64 0), i32 %27)
ret i32 0
}

LLVM IR (-O2):
@.str = [44 x i8] c"Thread %d has a value of a = %d for i = %d\0A\00"
@.str.1 = [46 x i8] c"Value of a after parallel for: a_shared = %d\0A\00"
define i32 @main() {
%1 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 0, i32 1, i32 0)
%2 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 0, i32 2, i32 1)
%3 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 0, i32 3, i32 2)
%4 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 0, i32 4, i32 3)
%5 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i32 0, i32 5, i32 4)
%6 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str.1, i64 0, i64 0), i32 5)
ret i32 0
}