#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 pthread_self();
int /*<<< orphan*/ usleep(int);
void *func(void *p) {
  int i;
  for (i = 0; i < 5; i++) {
    printf("%u\n", pthread_self() % 10000);
    usleep(1);
  }
  return NULL;
}


x86 assembly (clang, -O0):
<func>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
cmpl   $0x5,-0xc(%rbp)
jge    1182 <func+0x52>
mov    $0x0,%al
call   1040 <pthread_self@plt>
mov    $0x2710,%ecx
cltd
idiv   %ecx
mov    %edx,%esi
lea    0xe9b(%rip),%rdi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <usleep@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1143 <func+0x13>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<func>:
push   %rbx
xor    %eax,%eax
call   1040 <pthread_self@plt>
movslq %eax,%rsi
imul   $0x68db8bad,%rsi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x2c,%rax
add    %ecx,%eax
imul   $0x2710,%eax,%eax
sub    %eax,%esi
lea    0xea2(%rip),%rbx
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <usleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
movslq %eax,%rsi
imul   $0x68db8bad,%rsi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x2c,%rax
add    %ecx,%eax
imul   $0x2710,%eax,%eax
sub    %eax,%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <usleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
movslq %eax,%rsi
imul   $0x68db8bad,%rsi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x2c,%rax
add    %ecx,%eax
imul   $0x2710,%eax,%eax
sub    %eax,%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <usleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
movslq %eax,%rsi
imul   $0x68db8bad,%rsi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x2c,%rax
add    %ecx,%eax
imul   $0x2710,%eax,%eax
sub    %eax,%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <usleep@plt>
xor    %eax,%eax
call   1040 <pthread_self@plt>
movslq %eax,%rsi
imul   $0x68db8bad,%rsi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x2c,%rax
add    %ecx,%eax
imul   $0x2710,%eax,%eax
sub    %eax,%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <usleep@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%u\0A\00"
define i8* @func(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
store i8* %0, i8** %2
store i32 0, i32* %3
br label %4
4: ; preds = %12, %1
%5 = load i32, i32* %3
%6 = icmp slt i32 %5, 5
br i1 %6, label %7, label %15
7: ; preds = %4
%8 = call i32 (...) @pthread_self()
%9 = srem i32 %8, 10000
%10 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %9)
%11 = call i32 @usleep(i32 1)
br label %12
12: ; preds = %7
%13 = load i32, i32* %3
%14 = add nsw i32 %13, 1
store i32 %14, i32* %3
br label %4
15: ; preds = %4
ret i8* null
}

LLVM IR (-O2):
@.str = [4 x i8] c"%u\0A\00"
define noalias i8* @func(i8* nocapture readnone %0) {
%2 = tail call i32 (...) @pthread_self()
%3 = srem i32 %2, 10000
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = tail call i32 @usleep(i32 1)
%6 = tail call i32 (...) @pthread_self()
%7 = srem i32 %6, 10000
%8 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %7)
%9 = tail call i32 @usleep(i32 1)
%10 = tail call i32 (...) @pthread_self()
%11 = srem i32 %10, 10000
%12 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %11)
%13 = tail call i32 @usleep(i32 1)
%14 = tail call i32 (...) @pthread_self()
%15 = srem i32 %14, 10000
%16 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %15)
%17 = tail call i32 @usleep(i32 1)
%18 = tail call i32 (...) @pthread_self()
%19 = srem i32 %18, 10000
%20 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %19)
%21 = tail call i32 @usleep(i32 1)
ret i8* null
}