#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 atoi(char *);
int omp_get_num_threads();
int omp_get_thread_num();
int /*<<< orphan*/ omp_set_num_threads(int);
int /*<<< orphan*/ printf(char *, ...);
int main(int argc, char *argv[]) {
  int nthreads;
  int thread;
  if (argc > 1) {
    nthreads = atoi(argv[1]);
  } else
    nthreads = 10;
  omp_set_num_threads(nthreads);
#pragma omp parallel
  {
    thread = omp_get_thread_num();
    nthreads = omp_get_num_threads();
    printf("\nHola Mundo soy el hilo =%d de %d que somos en total.\n", thread,
           nthreads);
  }
  printf("\n");
  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)
cmpl   $0x1,-0x8(%rbp)
jle    1185 <main+0x35>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1070 <atoi@plt>
mov    %eax,-0x14(%rbp)
jmp    118c <main+0x3c>
movl   $0xa,-0x14(%rbp)
mov    -0x14(%rbp),%edi
call   1060 <omp_set_num_threads@plt>
mov    $0x0,%al
call   1030 <omp_get_thread_num@plt>
mov    %eax,-0x18(%rbp)
mov    $0x0,%al
call   1050 <omp_get_num_threads@plt>
mov    %eax,-0x14(%rbp)
mov    -0x18(%rbp),%esi
mov    -0x14(%rbp),%edx
lea    0xe4b(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe72(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    %edi,%eax
mov    $0xa,%edi
cmp    $0x2,%eax
jl     1178 <main+0x18>
mov    0x8(%rsi),%rdi
call   1080 <atoi@plt>
mov    %eax,%edi
call   1070 <omp_set_num_threads@plt>
xor    %eax,%eax
call   1040 <omp_get_thread_num@plt>
mov    %eax,%ebx
xor    %eax,%eax
call   1060 <omp_get_num_threads@plt>
lea    0xe6c(%rip),%rdi
mov    %ebx,%esi
mov    %eax,%edx
xor    %eax,%eax
call   1050 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [55 x i8] c"\0AHola Mundo soy el hilo =%d de %d que somos en total.\0A\00"
@.str.1 = [2 x i8] c"\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i32, i32* %4
%9 = icmp sgt i32 %8, 1
br i1 %9, label %10, label %15
10: ; preds = %2
%11 = load i8**, i8*** %5
%12 = getelementptr inbounds i8*, i8** %11, i64 1
%13 = load i8*, i8** %12
%14 = call i32 @atoi(i8* %13)
store i32 %14, i32* %6
br label %16
15: ; preds = %2
store i32 10, i32* %6
br label %16
16: ; preds = %15, %10
%17 = load i32, i32* %6
%18 = call i32 @omp_set_num_threads(i32 %17)
%19 = call i32 (...) @omp_get_thread_num()
store i32 %19, i32* %7
%20 = call i32 (...) @omp_get_num_threads()
store i32 %20, i32* %6
%21 = load i32, i32* %7
%22 = load i32, i32* %6
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([55 x i8], [55 x i8]* @.str, i64 0, i64 0), i32 %21, i32 %22)
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [55 x i8] c"\0AHola Mundo soy el hilo =%d de %d que somos en total.\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp sgt i32 %0, 1
br i1 %3, label %4, label %8
4: ; preds = %2
%5 = getelementptr inbounds i8*, i8** %1, i64 1
%6 = load i8*, i8** %5
%7 = tail call i32 @atoi(i8* %6)
br label %8
8: ; preds = %2, %4
%9 = phi i32 [ %7, %4 ], [ 10, %2 ]
%10 = tail call i32 @omp_set_num_threads(i32 %9)
%11 = tail call i32 (...) @omp_get_thread_num()
%12 = tail call i32 (...) @omp_get_num_threads()
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([55 x i8], [55 x i8]* @.str, i64 0, i64 0), i32 %11, i32 %12)
%14 = tail call i32 @putchar(i32 10)
ret i32 0
}