#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*/ exit(int);
int /*<<< orphan*/ fflush(int /*<<< orphan*/);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int /*<<< orphan*/ stderr;
void error(int err) {
  char *errorMessage;
  switch (err) {
  case 1:
    errorMessage = "Usage: serv499 port greeting deck";
    break;
  case 4:
    errorMessage = "Invalid Port";
    break;
  case 5:
    errorMessage = "Port Error";
    break;
  case 6:
    errorMessage = "Deck Error";
    break;
  case 8:
    errorMessage = "System Error.";
    break;
  }
  fprintf(stderr, "%s\n", errorMessage);
  fflush(stderr);
  exit(err);
}


x86 assembly (clang, -O0):
<error>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x7,%eax
ja     11af <error+0x7f>
mov    -0x18(%rbp),%rax
lea    0xea5(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xeb5(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11af <error+0x7f>
lea    0xec7(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11af <error+0x7f>
lea    0xec4(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11af <error+0x7f>
lea    0xebf(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11af <error+0x7f>
lea    0xeba(%rip),%rax
mov    %rax,-0x10(%rbp)
mov    0x2e2a(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rdx
lea    0xeb0(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e11(%rip),%rax
mov    (%rax),%edi
call   1040 <fflush@plt>
mov    -0x4(%rbp),%edi
call   1050 <exit@plt>

x86 assembly (clang, -O2):
<error>:
push   %r14
push   %rbx
push   %rax
mov    %edi,%ebx
lea    -0x4(%rbx),%eax
cmp    $0x4,%eax
ja     1150 <error+0x20>
cltq
lea    0xf11(%rip),%rcx
movslq (%rcx,%rax,4),%rdx
add    %rcx,%rdx
jmp    1157 <error+0x27>
lea    0xea9(%rip),%rdx
mov    0x2e82(%rip),%r14
mov    (%r14),%edi
lea    0xeeb(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%r14),%edi
call   1040 <fflush@plt>
mov    %ebx,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [34 x i8] c"Usage: serv499 port greeting deck\00"
@.str.1 = [13 x i8] c"Invalid Port\00"
@.str.2 = [11 x i8] c"Port Error\00"
@.str.3 = [11 x i8] c"Deck Error\00"
@.str.4 = [14 x i8] c"System Error.\00"
@stderr = global i32 0
@.str.5 = [4 x i8] c"%s\0A\00"
define void @error(i32 %0) {
%2 = alloca i32
%3 = alloca i8*
store i32 %0, i32* %2
%4 = load i32, i32* %2
switch i32 %4, label %10 [
i32 1, label %5
i32 4, label %6
i32 5, label %7
i32 6, label %8
i32 8, label %9
]
5: ; preds = %1
store i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str, i64 0, i64 0), i8** %3
br label %10
6: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), i8** %3
br label %10
7: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i8** %3
br label %10
8: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0), i8** %3
br label %10
9: ; preds = %1
store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.4, i64 0, i64 0), i8** %3
br label %10
10: ; preds = %1, %9, %8, %7, %6, %5
%11 = load i32, i32* @stderr
%12 = load i8*, i8** %3
%13 = call i32 @fprintf(i32 %11, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i8* %12)
%14 = load i32, i32* @stderr
%15 = call i32 @fflush(i32 %14)
%16 = load i32, i32* %2
%17 = call i32 @exit(i32 %16)
unreachable
}

LLVM IR (-O2):
@.str = [34 x i8] c"Usage: serv499 port greeting deck\00"
@.str.1 = [13 x i8] c"Invalid Port\00"
@.str.2 = [11 x i8] c"Port Error\00"
@.str.3 = [11 x i8] c"Deck Error\00"
@.str.4 = [14 x i8] c"System Error.\00"
@stderr = global i32 0
@.str.5 = [4 x i8] c"%s\0A\00"
@reltable.error = [5 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.1 to i64), i64 ptrtoint ([5 x i32]* @reltable.error to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.2 to i64), i64 ptrtoint ([5 x i32]* @reltable.error to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.3 to i64), i64 ptrtoint ([5 x i32]* @reltable.error to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([34 x i8]* @.str to i64), i64 ptrtoint ([5 x i32]* @reltable.error to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([14 x i8]* @.str.4 to i64), i64 ptrtoint ([5 x i32]* @reltable.error to i64)) to i32)]
define void @error(i32 %0) {
%2 = add i32 %0, -4
%3 = icmp ult i32 %2, 5
br i1 %3, label %4, label %8
4: ; preds = %1
%5 = sext i32 %2 to i64
%6 = shl i64 %5, 2
%7 = call i8* @llvm.load.relative.i64(i8* bitcast ([5 x i32]* @reltable.error to i8*), i64 %6)
br label %8
8: ; preds = %4, %1
%9 = phi i8* [ getelementptr inbounds ([34 x i8], [34 x i8]* @.str, i64 0, i64 0), %1 ], [ %7, %4 ]
%10 = load i32, i32* @stderr
%11 = tail call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i8* %9)
%12 = load i32, i32* @stderr
%13 = tail call i32 @fflush(i32 %12)
%14 = tail call i32 @exit(i32 %0)
unreachable
}