#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 system(char *);
int main() {
  printf("Spawning hello_1\n");
  printf("Hello_1 finished with status : %d\n", system("./hello_1"));
  printf("Spawning hello_2\n");
  printf("Hello_2 finished with status : %d\n", system("./hello_2"));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xef1(%rip),%rdi
call   1030 <system@plt>
mov    %eax,%esi
lea    0xec0(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xedf(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xf06(%rip),%rdi
call   1030 <system@plt>
mov    %eax,%esi
lea    0xed5(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xf22(%rip),%rdi
call   1030 <puts@plt>
lea    0xedf(%rip),%rdi
call   1040 <system@plt>
lea    0xeb0(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xf0b(%rip),%rdi
call   1030 <puts@plt>
lea    0xee4(%rip),%rdi
call   1040 <system@plt>
lea    0xeb5(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1050 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [18 x i8] c"Spawning hello_1\0A\00"
@.str.1 = [35 x i8] c"Hello_1 finished with status : %d\0A\00"
@.str.2 = [10 x i8] c"./hello_1\00"
@.str.3 = [18 x i8] c"Spawning hello_2\0A\00"
@.str.4 = [35 x i8] c"Hello_2 finished with status : %d\0A\00"
@.str.5 = [10 x i8] c"./hello_2\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @system(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @system(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.5, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.4, i64 0, i64 0), i32 %6)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [35 x i8] c"Hello_1 finished with status : %d\0A\00"
@.str.2 = [10 x i8] c"./hello_1\00"
@.str.4 = [35 x i8] c"Hello_2 finished with status : %d\0A\00"
@.str.5 = [10 x i8] c"./hello_2\00"
@str = [17 x i8] c"Spawning hello_1\00"
@str.6 = [17 x i8] c"Spawning hello_2\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @system(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @.str.1, i64 0, i64 0), i32 %2)
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str.6, i64 0, i64 0))
%5 = tail call i32 @system(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.5, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @.str.4, i64 0, i64 0), i32 %5)
ret i32 0
}