#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*/ printHelp();
int /*<<< orphan*/ rollYourOwn(int, char **);
scalar_t__ strcmp(char *, char *);
int main(int argc, char **argv) {
  if (argc < 2 || strcmp(argv[1], "--help") == 0) {
    printHelp();
    return 0;
  }
  rollYourOwn(argc - 1, argv + 1);
  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)
cmpl   $0x2,-0x8(%rbp)
jl     116e <main+0x3e>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
lea    0xea1(%rip),%rsi
call   1050 <strcmp@plt>
cmp    $0x0,%rax
jne    1181 <main+0x51>
mov    $0x0,%al
call   1030 <printHelp@plt>
movl   $0x0,-0x4(%rbp)
jmp    119b <main+0x6b>
mov    -0x8(%rbp),%edi
sub    $0x1,%edi
mov    -0x10(%rbp),%rsi
add    $0x8,%rsi
call   1040 <rollYourOwn@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
cmp    $0x2,%edi
jl     1165 <main+0x35>
mov    %rsi,%rbx
mov    %edi,%ebp
mov    0x8(%rsi),%rdi
lea    0xeb8(%rip),%rsi
call   1050 <strcmp@plt>
test   %rax,%rax
je     1165 <main+0x35>
add    $0x8,%rbx
add    $0xffffffff,%ebp
mov    %ebp,%edi
mov    %rbx,%rsi
call   1040 <rollYourOwn@plt>
jmp    116c <main+0x3c>
xor    %eax,%eax
call   1030 <printHelp@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [7 x i8] c"--help\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 = load i32, i32* %4
%7 = icmp slt i32 %6, 2
br i1 %7, label %14, label %8
8: ; preds = %2
%9 = load i8**, i8*** %5
%10 = getelementptr inbounds i8*, i8** %9, i64 1
%11 = load i8*, i8** %10
%12 = call i64 @strcmp(i8* %11, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0))
%13 = icmp eq i64 %12, 0
br i1 %13, label %14, label %16
14: ; preds = %8, %2
%15 = call i32 (...) @printHelp()
store i32 0, i32* %3
br label %22
16: ; preds = %8
%17 = load i32, i32* %4
%18 = sub nsw i32 %17, 1
%19 = load i8**, i8*** %5
%20 = getelementptr inbounds i8*, i8** %19, i64 1
%21 = call i32 @rollYourOwn(i32 %18, i8** %20)
store i32 0, i32* %3
br label %22
22: ; preds = %16, %14
%23 = load i32, i32* %3
ret i32 %23
}

LLVM IR (-O2):
@.str = [7 x i8] c"--help\00"
define i32 @main(i32 %0, i8** %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %9, label %4
4: ; preds = %2
%5 = getelementptr inbounds i8*, i8** %1, i64 1
%6 = load i8*, i8** %5
%7 = tail call i64 @strcmp(i8* %6, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0))
%8 = icmp eq i64 %7, 0
br i1 %8, label %9, label %11
9: ; preds = %4, %2
%10 = tail call i32 (...) @printHelp()
br label %14
11: ; preds = %4
%12 = add nsw i32 %0, -1
%13 = tail call i32 @rollYourOwn(i32 %12, i8** %5)
br label %14
14: ; preds = %11, %9
ret i32 0
}