#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 *, ...);
scalar_t__ validate(char const *const);
int main(int argc, const char **argv) {
  const char *const exeName = argv[0];
  const char *const tag = argv[1];
  if (argc != 2) {
    printf("incorrect usage : %s tag \n", exeName);
    return 2;
  }
  printf("Version : %s \n", "1.9.3");
  printf("Tag     : %s \n", tag);
  if (validate(tag)) {
    printf("OK : tag is compatible with lz4 version \n");
    return 0;
  }
  printf("!! error : tag and versions are not compatible !! \n");
  return 1;
}


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)
mov    -0x10(%rbp),%rax
mov    (%rax),%rax
mov    %rax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x20(%rbp)
cmpl   $0x2,-0x8(%rbp)
je     1175 <main+0x55>
mov    -0x18(%rbp),%rsi
lea    0xe9e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x2,-0x4(%rbp)
jmp    11de <main+0xbe>
lea    0xe9f(%rip),%rdi
lea    0xea7(%rip),%rsi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x20(%rbp),%rsi
lea    0xe9b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x20(%rbp),%rdi
call   1040 <validate@plt>
cmp    $0x0,%rax
je     11c9 <main+0xa9>
lea    0xe89(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
jmp    11de <main+0xbe>
lea    0xe99(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
cmp    $0x2,%edi
jne    1180 <main+0x50>
mov    0x8(%rsi),%r14
lea    0xed7(%rip),%rdi
lea    0xedf(%rip),%rsi
xor    %ebx,%ebx
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed5(%rip),%rdi
mov    %r14,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %r14,%rdi
call   1050 <validate@plt>
test   %rax,%rax
je     1198 <main+0x68>
lea    0xef9(%rip),%rdi
call   1030 <puts@plt>
jmp    11a9 <main+0x79>
mov    (%rsi),%rsi
lea    0xe76(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0x2,%ebx
jmp    11a9 <main+0x79>
lea    0xea0(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%ebx
mov    %ebx,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [27 x i8] c"incorrect usage : %s tag \0A\00"
@.str.1 = [15 x i8] c"Version : %s \0A\00"
@.str.2 = [6 x i8] c"1.9.3\00"
@.str.3 = [15 x i8] c"Tag : %s \0A\00"
@.str.4 = [42 x i8] c"OK : tag is compatible with lz4 version \0A\00"
@.str.5 = [52 x i8] c"!! error : tag and versions are not compatible !! \0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i8*
%7 = alloca i8*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i8**, i8*** %5
%9 = getelementptr inbounds i8*, i8** %8, i64 0
%10 = load i8*, i8** %9
store i8* %10, i8** %6
%11 = load i8**, i8*** %5
%12 = getelementptr inbounds i8*, i8** %11, i64 1
%13 = load i8*, i8** %12
store i8* %13, i8** %7
%14 = load i32, i32* %4
%15 = icmp ne i32 %14, 2
br i1 %15, label %16, label %19
16: ; preds = %2
%17 = load i8*, i8** %6
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0), i8* %17)
store i32 2, i32* %3
br label %30
19: ; preds = %2
%20 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%21 = load i8*, i8** %7
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0), i8* %21)
%23 = load i8*, i8** %7
%24 = call i64 @validate(i8* %23)
%25 = icmp ne i64 %24, 0
br i1 %25, label %26, label %28
26: ; preds = %19
%27 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.4, i64 0, i64 0))
store i32 0, i32* %3
br label %30
28: ; preds = %19
%29 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.5, i64 0, i64 0))
store i32 1, i32* %3
br label %30
30: ; preds = %28, %26, %16
%31 = load i32, i32* %3
ret i32 %31
}

LLVM IR (-O2):
@.str = [27 x i8] c"incorrect usage : %s tag \0A\00"
@.str.1 = [15 x i8] c"Version : %s \0A\00"
@.str.2 = [6 x i8] c"1.9.3\00"
@.str.3 = [15 x i8] c"Tag : %s \0A\00"
@str = [51 x i8] c"!! error : tag and versions are not compatible !! \00"
@str.6 = [41 x i8] c"OK : tag is compatible with lz4 version \00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = getelementptr inbounds i8*, i8** %1, i64 1
%4 = load i8*, i8** %3
%5 = icmp eq i32 %0, 2
br i1 %5, label %9, label %6
6: ; preds = %2
%7 = load i8*, i8** %1
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0), i8* %7)
br label %18
9: ; preds = %2
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0), i8* %4)
%12 = tail call i64 @validate(i8* %4)
%13 = icmp eq i64 %12, 0
br i1 %13, label %16, label %14
14: ; preds = %9
%15 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([41 x i8], [41 x i8]* @str.6, i64 0, i64 0))
br label %18
16: ; preds = %9
%17 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @str, i64 0, i64 0))
br label %18
18: ; preds = %16, %14, %6
%19 = phi i32 [ 2, %6 ], [ 0, %14 ], [ 1, %16 ]
ret i32 %19
}