#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 omp_get_num_threads();
int omp_get_thread_num();
int /*<<< orphan*/ printf(char *, ...);
int main(int agrc, char **argv) {
  int threadid;
#pragma omp parallel private(threadid)
  {
    threadid = omp_get_thread_num();
    printf("Hello World from thread: %d\n", threadid);
#pragma omp master
    {
      printf("In Master\n");
      printf("Total Threads: %d\n", omp_get_num_threads());
    }
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    $0x0,%al
call   1030 <omp_get_thread_num@plt>
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%esi
lea    0xea6(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xeb5(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    $0x0,%al
call   1050 <omp_get_num_threads@plt>
mov    %eax,%esi
lea    0xea9(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %eax,%eax
call   1040 <omp_get_thread_num@plt>
lea    0xeb1(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xed1(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
call   1060 <omp_get_num_threads@plt>
lea    0xeab(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1050 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [29 x i8] c"Hello World from thread: %d\0A\00"
@.str.1 = [11 x i8] c"In Master\0A\00"
@.str.2 = [19 x i8] c"Total Threads: %d\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = call i32 (...) @omp_get_thread_num()
store i32 %7, i32* %6
%8 = load i32, i32* %6
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 %8)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%11 = call i32 (...) @omp_get_num_threads()
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.2, i64 0, i64 0), i32 %11)
ret i32 0
}

LLVM IR (-O2):
@.str = [29 x i8] c"Hello World from thread: %d\0A\00"
@.str.2 = [19 x i8] c"Total Threads: %d\0A\00"
@str = [10 x i8] c"In Master\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (...) @omp_get_thread_num()
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 (...) @omp_get_num_threads()
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.2, i64 0, i64 0), i32 %6)
ret i32 0
}