#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 atoi(char *);
int lose();
int /*<<< orphan*/ printf(char *);
int win();
int main(int argc, char *argv[]) {
  bool success = false;
  int value;
  if (argc < 2) {
    printf("Not enough args!\n");
    return -1;
  }
  value = atoi(argv[1]);
  if (value == 42) {
    success = win();
  } else {
    success = lose();
  }
  return success;
}


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)
movl   $0x0,-0x14(%rbp)
cmpl   $0x2,-0x8(%rbp)
jge    117f <main+0x3f>
lea    0xe92(%rip),%rdi
call   1040 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    11b8 <main+0x78>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1060 <atoi@plt>
mov    %eax,-0x18(%rbp)
cmpl   $0x2a,-0x18(%rbp)
jne    11a8 <main+0x68>
mov    $0x0,%al
call   1050 <win@plt>
mov    %eax,-0x14(%rbp)
jmp    11b2 <main+0x72>
mov    $0x0,%al
call   1030 <lose@plt>
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
cmp    $0x1,%edi
jg     1159 <main+0x19>
lea    0xeb3(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffffff,%eax
pop    %rcx
ret
mov    0x8(%rsi),%rdi
call   1060 <atoi@plt>
cmp    $0x2a,%eax
jne    116f <main+0x2f>
xor    %eax,%eax
pop    %rcx
jmp    1050 <win@plt>
xor    %eax,%eax
pop    %rcx
jmp    1040 <lose@plt>

LLVM IR (-O0):
@.str = [18 x i8] c"Not enough args!\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 0, i32* %6
%8 = load i32, i32* %4
%9 = icmp slt i32 %8, 2
br i1 %9, label %10, label %12
10: ; preds = %2
%11 = call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0))
store i32 -1, i32* %3
br label %25
12: ; preds = %2
%13 = load i8**, i8*** %5
%14 = getelementptr inbounds i8*, i8** %13, i64 1
%15 = load i8*, i8** %14
%16 = call i32 @atoi(i8* %15)
store i32 %16, i32* %7
%17 = load i32, i32* %7
%18 = icmp eq i32 %17, 42
br i1 %18, label %19, label %21
19: ; preds = %12
%20 = call i32 (...) @win()
store i32 %20, i32* %6
br label %23
21: ; preds = %12
%22 = call i32 (...) @lose()
store i32 %22, i32* %6
br label %23
23: ; preds = %21, %19
%24 = load i32, i32* %6
store i32 %24, i32* %3
br label %25
25: ; preds = %23, %10
%26 = load i32, i32* %3
ret i32 %26
}

LLVM IR (-O2):
@str = [17 x i8] c"Not enough args!\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str, i64 0, i64 0))
br label %15
6: ; preds = %2
%7 = getelementptr inbounds i8*, i8** %1, i64 1
%8 = load i8*, i8** %7
%9 = tail call i32 @atoi(i8* %8)
%10 = icmp eq i32 %9, 42
br i1 %10, label %11, label %13
11: ; preds = %6
%12 = tail call i32 (...) @win()
br label %15
13: ; preds = %6
%14 = tail call i32 (...) @lose()
br label %15
15: ; preds = %11, %13, %4
%16 = phi i32 [ -1, %4 ], [ %12, %11 ], [ %14, %13 ]
ret i32 %16
}