#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 getpid();
int /*<<< orphan*/ makeChild(char *);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ sleep(int);
int /*<<< orphan*/ system(char *);
int main(int argc, char *argv[]) {
  printf("PARENT PID %d\n", getpid());
  printf("--------------------\n");
  makeChild("./tirage");
  sleep(1);
  makeChild("./receiver");
  makeChild("./agence");
  system("./display");
  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)
mov    $0x0,%al
call   1030 <getpid@plt>
mov    %eax,%esi
lea    0xe8a(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
lea    0xe93(%rip),%rdi
call   1040 <makeChild@plt>
mov    $0x1,%edi
call   1070 <sleep@plt>
lea    0xe86(%rip),%rdi
call   1040 <makeChild@plt>
lea    0xe85(%rip),%rdi
call   1040 <makeChild@plt>
lea    0xe82(%rip),%rdi
call   1050 <system@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %eax,%eax
call   1040 <getpid@plt>
lea    0xe91(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1070 <printf@plt>
lea    0xeb7(%rip),%rdi
call   1030 <puts@plt>
lea    0xe84(%rip),%rdi
call   1050 <makeChild@plt>
mov    $0x1,%edi
call   1080 <sleep@plt>
lea    0xe77(%rip),%rdi
call   1050 <makeChild@plt>
lea    0xe76(%rip),%rdi
call   1050 <makeChild@plt>
lea    0xe73(%rip),%rdi
call   1060 <system@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [15 x i8] c"PARENT PID %d\0A\00"
@.str.1 = [22 x i8] c"--------------------\0A\00"
@.str.2 = [9 x i8] c"./tirage\00"
@.str.3 = [11 x i8] c"./receiver\00"
@.str.4 = [9 x i8] c"./agence\00"
@.str.5 = [10 x i8] c"./display\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 (...) @getpid()
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 %6)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.1, i64 0, i64 0))
%9 = call i32 @makeChild(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%10 = call i32 @sleep(i32 1)
%11 = call i32 @makeChild(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
%12 = call i32 @makeChild(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%13 = call i32 @system(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.5, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [15 x i8] c"PARENT PID %d\0A\00"
@.str.2 = [9 x i8] c"./tirage\00"
@.str.3 = [11 x i8] c"./receiver\00"
@.str.4 = [9 x i8] c"./agence\00"
@.str.5 = [10 x i8] c"./display\00"
@str = [21 x i8] c"--------------------\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (...) @getpid()
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 @makeChild(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%7 = tail call i32 @sleep(i32 1)
%8 = tail call i32 @makeChild(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
%9 = tail call i32 @makeChild(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%10 = tail call i32 @system(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.5, i64 0, i64 0))
ret i32 0
}