#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*/ assert(int /*<<< orphan*/);
const char *sev_to_string(int severity) {
  switch (severity) {
  case 7:
    return "debug";
  case 6:
    return "info";
  case 5:
    return "notice";
  case 4:
    return "warn";
  case 3:
    return "err";
  default:
    assert(0);
    return "UNKNOWN";
  }
}


x86 assembly (clang, -O0):
<sev_to_string>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xfffffffd,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x4,%eax
ja     1194 <sev_to_string+0x84>
mov    -0x18(%rbp),%rax
lea    0xec5(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xec9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a6 <sev_to_string+0x96>
lea    0xebf(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a6 <sev_to_string+0x96>
lea    0xeb4(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a6 <sev_to_string+0x96>
lea    0xeab(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a6 <sev_to_string+0x96>
lea    0xea0(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a6 <sev_to_string+0x96>
xor    %edi,%edi
call   1030 <assert@plt>
lea    0xe8d(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<sev_to_string>:
push   %rax
add    $0xfffffffd,%edi
cmp    $0x5,%edi
jae    112c <sev_to_string+0x1c>
movslq %edi,%rax
lea    0xf01(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
pop    %rcx
ret
xor    %edi,%edi
call   1030 <assert@plt>
lea    0xee1(%rip),%rax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [6 x i8] c"debug\00"
@.str.1 = [5 x i8] c"info\00"
@.str.2 = [7 x i8] c"notice\00"
@.str.3 = [5 x i8] c"warn\00"
@.str.4 = [4 x i8] c"err\00"
@.str.5 = [8 x i8] c"UNKNOWN\00"
define i8* @sev_to_string(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %10 [
i32 7, label %5
i32 6, label %6
i32 5, label %7
i32 4, label %8
i32 3, label %9
]
5: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8** %2
br label %12
6: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %12
7: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %12
8: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %12
9: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %12
10: ; preds = %1
%11 = call i32 @assert(i32 0)
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %12
12: ; preds = %10, %9, %8, %7, %6, %5
%13 = load i8*, i8** %2
ret i8* %13
}

LLVM IR (-O2):
@.str = [6 x i8] c"debug\00"
@.str.1 = [5 x i8] c"info\00"
@.str.2 = [7 x i8] c"notice\00"
@.str.3 = [5 x i8] c"warn\00"
@.str.4 = [4 x i8] c"err\00"
@.str.5 = [8 x i8] c"UNKNOWN\00"
@reltable.sev_to_string = [5 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.4 to i64), i64 ptrtoint ([5 x i32]* @reltable.sev_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.3 to i64), i64 ptrtoint ([5 x i32]* @reltable.sev_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.2 to i64), i64 ptrtoint ([5 x i32]* @reltable.sev_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.1 to i64), i64 ptrtoint ([5 x i32]* @reltable.sev_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str to i64), i64 ptrtoint ([5 x i32]* @reltable.sev_to_string to i64)) to i32)]
define i8* @sev_to_string(i32 %0) {
%2 = add i32 %0, -3
%3 = icmp ult i32 %2, 5
br i1 %3, label %6, label %4
4: ; preds = %1
%5 = tail call i32 @assert(i32 0)
br label %10
6: ; preds = %1
%7 = sext i32 %2 to i64
%8 = shl i64 %7, 2
%9 = call i8* @llvm.load.relative.i64(i8* bitcast ([5 x i32]* @reltable.sev_to_string to i8*), i64 %8)
br label %10
10: ; preds = %6, %4
%11 = phi i8* [ getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0), %4 ], [ %9, %6 ]
ret i8* %11
}