#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 */
char const *srv_strerror(int err) {
  switch (err) {
  case ((-6000) + 1):
    return "no";
  case ((-6000) + 5):
    return "more...";
  case ((-6000) + 2):
    return "operation already completed";
  case ((-6000) + 3):
    return "syntax error";
  case ((-6000) + 4):
    return "semantics error";
  case ((-6000) + 6):
    return "option not supported";
  case ((-6000) + 7):
    return "request too long";
  case ((-6000) + 8):
    return "error in address";
  default:
    break;
  }
  return NULL;
}


x86 assembly (clang, -O0):
<srv_strerror>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0x176f,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x7,%eax
ja     11b2 <srv_strerror+0xb2>
mov    -0x18(%rbp),%rax
lea    0xed7(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xee7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
lea    0xeda(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
lea    0xed2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
lea    0xede(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
lea    0xedb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
lea    0xedb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
lea    0xee0(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
lea    0xee1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11bf <srv_strerror+0xbf>
jmp    11b7 <srv_strerror+0xb7>
movq   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<srv_strerror>:
add    $0x176f,%edi
cmp    $0x7,%edi
ja     111d <srv_strerror+0x1d>
movslq %edi,%rax
lea    0xf67(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
xor    %eax,%eax
ret

LLVM IR (-O0):
@.str = [3 x i8] c"no\00"
@.str.1 = [8 x i8] c"more...\00"
@.str.2 = [28 x i8] c"operation already completed\00"
@.str.3 = [13 x i8] c"syntax error\00"
@.str.4 = [16 x i8] c"semantics error\00"
@.str.5 = [21 x i8] c"option not supported\00"
@.str.6 = [17 x i8] c"request too long\00"
@.str.7 = [17 x i8] c"error in address\00"
define i8* @srv_strerror(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %13 [
i32 -5999, label %5
i32 -5995, label %6
i32 -5998, label %7
i32 -5997, label %8
i32 -5996, label %9
i32 -5994, label %10
i32 -5993, label %11
i32 -5992, label %12
]
5: ; preds = %1
store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8** %2
br label %15
6: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %15
7: ; preds = %1
store i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %15
8: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %15
9: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %15
10: ; preds = %1
store i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %15
11: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %15
12: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %15
13: ; preds = %1
br label %14
14: ; preds = %13
store i8* null, i8** %2
br label %15
15: ; preds = %14, %12, %11, %10, %9, %8, %7, %6, %5
%16 = load i8*, i8** %2
ret i8* %16
}

LLVM IR (-O2):
@.str = [3 x i8] c"no\00"
@.str.1 = [8 x i8] c"more...\00"
@.str.2 = [28 x i8] c"operation already completed\00"
@.str.3 = [13 x i8] c"syntax error\00"
@.str.4 = [16 x i8] c"semantics error\00"
@.str.5 = [21 x i8] c"option not supported\00"
@.str.6 = [17 x i8] c"request too long\00"
@.str.7 = [17 x i8] c"error in address\00"
@reltable.srv_strerror = [8 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([3 x i8]* @.str to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([28 x i8]* @.str.2 to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.3 to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([16 x i8]* @.str.4 to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.1 to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([21 x i8]* @.str.5 to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([17 x i8]* @.str.6 to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([17 x i8]* @.str.7 to i64), i64 ptrtoint ([8 x i32]* @reltable.srv_strerror to i64)) to i32)]
define i8* @srv_strerror(i32 %0) {
%2 = add i32 %0, 5999
%3 = icmp ult i32 %2, 8
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 ([8 x i32]* @reltable.srv_strerror to i8*), i64 %6)
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ null, %1 ]
ret i8* %9
}