#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 /*<<< orphan*/ pthread_exit(int /*<<< orphan*/);
void *a_thread_func(void *num) {
  int *i, j;
  i = (int *)num;
  for (j = 0; j < 5; j++)
    printf("Passed argument %d for thread\n", i[j]);
  pthread_exit(0);
  return NULL;
}


x86 assembly (clang, -O0):
<a_thread_func>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rax
mov    %rax,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
cmpl   $0x5,-0x14(%rbp)
jge    116a <a_thread_func+0x4a>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xea9(%rip),%rdi
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    113b <a_thread_func+0x1b>
xor    %edi,%edi
call   1040 <pthread_exit@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<a_thread_func>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
mov    (%rdi),%esi
lea    0xed0(%rip),%r14
mov    %r14,%rdi
call   1030 <printf@plt>
mov    0x4(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
mov    0x8(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
mov    0xc(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
mov    0x10(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
xor    %edi,%edi
call   1040 <pthread_exit@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [31 x i8] c"Passed argument %d for thread\0A\00"
define i8* @a_thread_func(i8* %0) {
%2 = alloca i8*
%3 = alloca i32*
%4 = alloca i32
store i8* %0, i8** %2
%5 = load i8*, i8** %2
%6 = bitcast i8* %5 to i32*
store i32* %6, i32** %3
store i32 0, i32* %4
br label %7
7: ; preds = %17, %1
%8 = load i32, i32* %4
%9 = icmp slt i32 %8, 5
br i1 %9, label %10, label %20
10: ; preds = %7
%11 = load i32*, i32** %3
%12 = load i32, i32* %4
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds i32, i32* %11, i64 %13
%15 = load i32, i32* %14
%16 = call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i32 %15)
br label %17
17: ; preds = %10
%18 = load i32, i32* %4
%19 = add nsw i32 %18, 1
store i32 %19, i32* %4
br label %7
20: ; preds = %7
%21 = call i32 @pthread_exit(i32 0)
ret i8* null
}

LLVM IR (-O2):
@.str = [31 x i8] c"Passed argument %d for thread\0A\00"
define noalias i8* @a_thread_func(i8* nocapture %0) {
%2 = bitcast i8* %0 to i32*
%3 = load i32, i32* %2
%4 = tail call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = getelementptr inbounds i8, i8* %0, i64 4
%6 = bitcast i8* %5 to i32*
%7 = load i32, i32* %6
%8 = tail call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i32 %7)
%9 = getelementptr inbounds i8, i8* %0, i64 8
%10 = bitcast i8* %9 to i32*
%11 = load i32, i32* %10
%12 = tail call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i32 %11)
%13 = getelementptr inbounds i8, i8* %0, i64 12
%14 = bitcast i8* %13 to i32*
%15 = load i32, i32* %14
%16 = tail call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i32 %15)
%17 = getelementptr inbounds i8, i8* %0, i64 16
%18 = bitcast i8* %17 to i32*
%19 = load i32, i32* %18
%20 = tail call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i32 %19)
%21 = tail call i32 @pthread_exit(i32 0)
ret i8* null
}