#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*/ atoi(char *);
int /*<<< orphan*/ cleanup_diff_pool();
int diff(char *, char *, int /*<<< orphan*/);
int /*<<< orphan*/ exit(int);
int /*<<< orphan*/ printf(char *, ...);
void main(int argc, char *argv[]) {
  if (argc != 4) {
    printf("usage: %s <arg1> <arg2> <max>\n", argv[0]);
    exit(1);
  }
  printf("%d\n", diff(argv[1], argv[2], atoi(argv[3])));
  cleanup_diff_pool();
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x4,-0x4(%rbp)
je     1188 <main+0x38>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xe89(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    $0x1,%edi
call   1060 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x20(%rbp)
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rax
mov    %rax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x18(%rax),%rdi
call   1050 <atoi@plt>
mov    -0x20(%rbp),%rdi
mov    -0x18(%rbp),%rsi
mov    %eax,%edx
call   1070 <diff@plt>
mov    %eax,%esi
lea    0xe5a(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    $0x0,%al
call   1030 <cleanup_diff_pool@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
cmp    $0x4,%edi
jne    1195 <main+0x45>
mov    0x8(%rsi),%rbx
mov    0x10(%rsi),%r14
mov    0x18(%rsi),%rdi
call   1050 <atoi@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
mov    %eax,%edx
call   1070 <diff@plt>
lea    0xea1(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1030 <cleanup_diff_pool@plt>
mov    (%rsi),%rsi
lea    0xe61(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0x1,%edi
call   1060 <exit@plt>

LLVM IR (-O0):
@.str = [31 x i8] c"usage: %s <arg1> <arg2> <max>\0A\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define void @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i8**
store i32 %0, i32* %3
store i8** %1, i8*** %4
%5 = load i32, i32* %3
%6 = icmp ne i32 %5, 4
br i1 %6, label %7, label %13
7: ; preds = %2
%8 = load i8**, i8*** %4
%9 = getelementptr inbounds i8*, i8** %8, i64 0
%10 = load i8*, i8** %9
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i8* %10)
%12 = call i32 @exit(i32 1)
unreachable
13: ; preds = %2
%14 = load i8**, i8*** %4
%15 = getelementptr inbounds i8*, i8** %14, i64 1
%16 = load i8*, i8** %15
%17 = load i8**, i8*** %4
%18 = getelementptr inbounds i8*, i8** %17, i64 2
%19 = load i8*, i8** %18
%20 = load i8**, i8*** %4
%21 = getelementptr inbounds i8*, i8** %20, i64 3
%22 = load i8*, i8** %21
%23 = call i32 @atoi(i8* %22)
%24 = call i32 @diff(i8* %16, i8* %19, i32 %23)
%25 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %24)
%26 = call i32 (...) @cleanup_diff_pool()
ret void
}

LLVM IR (-O2):
@.str = [31 x i8] c"usage: %s <arg1> <arg2> <max>\0A\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define void @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 4
br i1 %3, label %8, label %4
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0), i8* %5)
%7 = tail call i32 @exit(i32 1)
unreachable
8: ; preds = %2
%9 = getelementptr inbounds i8*, i8** %1, i64 1
%10 = load i8*, i8** %9
%11 = getelementptr inbounds i8*, i8** %1, i64 2
%12 = load i8*, i8** %11
%13 = getelementptr inbounds i8*, i8** %1, i64 3
%14 = load i8*, i8** %13
%15 = tail call i32 @atoi(i8* %14)
%16 = tail call i32 @diff(i8* %10, i8* %12, i32 %15)
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %16)
%18 = tail call i32 (...) @cleanup_diff_pool()
ret void
}