#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*/ free(char *);
char *mbpwcreate(char *, char *, char *, char *);
int /*<<< orphan*/ printf(char *, char *);
int /*<<< orphan*/ usage();
int main(int argc, char *argv[]) {
  char *pw = NULL;
  if (argc < 5) {
    usage();
    return -1;
  }
  pw = mbpwcreate(argv[1], argv[2], argv[3], argv[4]);
  printf("%s\n", pw);
  free(pw);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
movq   $0x0,-0x18(%rbp)
cmpl   $0x5,-0x8(%rbp)
jge    117b <main+0x3b>
mov    $0x0,%al
call   1050 <usage@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    11c4 <main+0x84>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rsi
mov    -0x10(%rbp),%rax
mov    0x18(%rax),%rdx
mov    -0x10(%rbp),%rax
mov    0x20(%rax),%rcx
call   1060 <mbpwcreate@plt>
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rsi
lea    0xe51(%rip),%rdi
call   1040 <printf@plt>
mov    -0x18(%rbp),%rdi
call   1030 <free@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x4,%edi
jg     1154 <main+0x14>
xor    %eax,%eax
call   1050 <usage@plt>
mov    $0xffffffff,%eax
pop    %rbx
ret
mov    0x8(%rsi),%rdi
mov    0x10(%rsi),%rax
mov    0x18(%rsi),%rdx
mov    0x20(%rsi),%rcx
mov    %rax,%rsi
call   1060 <mbpwcreate@plt>
mov    %rax,%rbx
lea    0xe8a(%rip),%rdi
mov    %rax,%rsi
call   1040 <printf@plt>
mov    %rbx,%rdi
call   1030 <free@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i8*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i8* null, i8** %6
%7 = load i32, i32* %4
%8 = icmp slt i32 %7, 5
br i1 %8, label %9, label %11
9: ; preds = %2
%10 = call i32 (...) @usage()
store i32 -1, i32* %3
br label %29
11: ; preds = %2
%12 = load i8**, i8*** %5
%13 = getelementptr inbounds i8*, i8** %12, i64 1
%14 = load i8*, i8** %13
%15 = load i8**, i8*** %5
%16 = getelementptr inbounds i8*, i8** %15, i64 2
%17 = load i8*, i8** %16
%18 = load i8**, i8*** %5
%19 = getelementptr inbounds i8*, i8** %18, i64 3
%20 = load i8*, i8** %19
%21 = load i8**, i8*** %5
%22 = getelementptr inbounds i8*, i8** %21, i64 4
%23 = load i8*, i8** %22
%24 = call i8* @mbpwcreate(i8* %14, i8* %17, i8* %20, i8* %23)
store i8* %24, i8** %6
%25 = load i8*, i8** %6
%26 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %25)
%27 = load i8*, i8** %6
%28 = call i32 @free(i8* %27)
store i32 0, i32* %3
br label %29
29: ; preds = %11, %9
%30 = load i32, i32* %3
ret i32 %30
}

LLVM IR (-O2):
@.str = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 5
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = tail call i32 (...) @usage()
br label %18
6: ; preds = %2
%7 = getelementptr inbounds i8*, i8** %1, i64 1
%8 = load i8*, i8** %7
%9 = getelementptr inbounds i8*, i8** %1, i64 2
%10 = load i8*, i8** %9
%11 = getelementptr inbounds i8*, i8** %1, i64 3
%12 = load i8*, i8** %11
%13 = getelementptr inbounds i8*, i8** %1, i64 4
%14 = load i8*, i8** %13
%15 = tail call i8* @mbpwcreate(i8* %8, i8* %10, i8* %12, i8* %14)
%16 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %15)
%17 = tail call i32 @free(i8* %15)
br label %18
18: ; preds = %6, %4
%19 = phi i32 [ -1, %4 ], [ 0, %6 ]
ret i32 %19
}