#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*/ omp_set_num_threads(int);
int /*<<< orphan*/ printf(char *);
int main(int argc, char **argv) {
  printf("\nBeginning\n");
#pragma omp parallel
  printf("\nPart I");
  printf("\n\nBetween I and II...\n");
  omp_set_num_threads(3);
#pragma omp parallel
  printf("\nPart II...");
  printf("\n\nBetween II and III...\n");
#pragma omp parallel num_threads(5)
  printf("\nPart III...");
  printf("\n\nEnd\n\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xec3(%rip),%rdi
call   1030 <printf@plt>
lea    0xec3(%rip),%rdi
call   1030 <printf@plt>
lea    0xebf(%rip),%rdi
call   1030 <printf@plt>
mov    $0x3,%edi
call   1040 <omp_set_num_threads@plt>
lea    0xec0(%rip),%rdi
call   1030 <printf@plt>
lea    0xec0(%rip),%rdi
call   1030 <printf@plt>
lea    0xecd(%rip),%rdi
call   1030 <printf@plt>
lea    0xece(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xee9(%rip),%rdi
call   1030 <puts@plt>
lea    0xebc(%rip),%rdi
call   1040 <printf@plt>
lea    0xedc(%rip),%rdi
call   1030 <puts@plt>
mov    $0x3,%edi
call   1050 <omp_set_num_threads@plt>
lea    0xea2(%rip),%rdi
call   1040 <printf@plt>
lea    0xed0(%rip),%rdi
call   1030 <puts@plt>
lea    0xe96(%rip),%rdi
call   1040 <printf@plt>
lea    0xed0(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [12 x i8] c"\0ABeginning\0A\00"
@.str.1 = [8 x i8] c"\0APart I\00"
@.str.2 = [23 x i8] c"\0A\0ABetween I and II...\0A\00"
@.str.3 = [12 x i8] c"\0APart II...\00"
@.str.4 = [25 x i8] c"\0A\0ABetween II and III...\0A\00"
@.str.5 = [13 x i8] c"\0APart III...\00"
@.str.6 = [8 x i8] c"\0A\0AEnd\0A\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0))
%9 = call i32 @omp_set_num_threads(i32 3)
%10 = call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0))
%11 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.4, i64 0, i64 0))
%12 = call i32 @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.5, i64 0, i64 0))
%13 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.6, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [8 x i8] c"\0APart I\00"
@.str.3 = [12 x i8] c"\0APart II...\00"
@.str.5 = [13 x i8] c"\0APart III...\00"
@str = [11 x i8] c"\0ABeginning\00"
@str.7 = [22 x i8] c"\0A\0ABetween I and II...\00"
@str.8 = [24 x i8] c"\0A\0ABetween II and III...\00"
@str.9 = [7 x i8] c"\0A\0AEnd\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @str.7, i64 0, i64 0))
%6 = tail call i32 @omp_set_num_threads(i32 3)
%7 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @str.8, i64 0, i64 0))
%9 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.5, i64 0, i64 0))
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str.9, i64 0, i64 0))
ret i32 0
}