#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 /*<<< orphan*/);
int /*<<< orphan*/ pthread_self();
int /*<<< orphan*/ sleep(int);
void *thr_func(void *arg) {
  int i = 0;
  do {
    sleep(1);
    printf(" New Thread: %lu\n", pthread_self());
    i++;
  } while (i < 5);
  return ((void *)0);
}


x86 assembly (clang, -O0):
<thr_func>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
mov    $0x1,%edi
call   1050 <sleep@plt>
mov    $0x0,%al
call   1040 <pthread_self@plt>
mov    %eax,%esi
lea    0xea3(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
cmpl   $0x5,-0xc(%rbp)
jl     1143 <thr_func+0x13>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<thr_func>:
push   %rbx
mov    $0x1,%edi
call   1050 <sleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
lea    0xeb7(%rip),%rbx
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <sleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <sleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <sleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <sleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [18 x i8] c" New Thread: %lu\0A\00"
define i8* @thr_func(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
store i8* %0, i8** %2
store i32 0, i32* %3
br label %4
4: ; preds = %10, %1
%5 = call i32 @sleep(i32 1)
%6 = call i32 (...) @pthread_self()
%7 = call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i32 %6)
%8 = load i32, i32* %3
%9 = add nsw i32 %8, 1
store i32 %9, i32* %3
br label %10
10: ; preds = %4
%11 = load i32, i32* %3
%12 = icmp slt i32 %11, 5
br i1 %12, label %4, label %13
13: ; preds = %10
ret i8* null
}

LLVM IR (-O2):
@.str = [18 x i8] c" New Thread: %lu\0A\00"
define noalias i8* @thr_func(i8* nocapture readnone %0) {
%2 = tail call i32 @sleep(i32 1)
%3 = tail call i32 (...) @pthread_self()
%4 = tail call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = tail call i32 @sleep(i32 1)
%6 = tail call i32 (...) @pthread_self()
%7 = tail call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i32 %6)
%8 = tail call i32 @sleep(i32 1)
%9 = tail call i32 (...) @pthread_self()
%10 = tail call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i32 %9)
%11 = tail call i32 @sleep(i32 1)
%12 = tail call i32 (...) @pthread_self()
%13 = tail call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i32 %12)
%14 = tail call i32 @sleep(i32 1)
%15 = tail call i32 (...) @pthread_self()
%16 = tail call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i32 %15)
ret i8* null
}