#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 */
typedef int speed_t;

/* Variables and functions */
#define B0 147
#define B110 146
#define B115200 145
#define B1200 144
#define B134 143
#define B150 142
#define B1800 141
#define B19200 140
#define B200 139
#define B230400 138
#define B2400 137
#define B300 136
#define B38400 135
#define B460800 134
#define B4800 133
#define B50 132
#define B57600 131
#define B600 130
#define B75 129
#define B9600 128
const char *getspeedstr(speed_t speed) {
  switch (speed) {
  case B0:
    return "0";
  case B50:
    return "50";
  case B75:
    return "75";
  case B110:
    return "110";
  case B134:
    return "134";
  case B150:
    return "150";
  case B200:
    return "200";
  case B300:
    return "300";
  case B600:
    return "600";
  case B1200:
    return "1200";
  case B1800:
    return "1800";
  case B2400:
    return "2400";
  case B4800:
    return "4800";
  case B9600:
    return "9600";
  case B19200:
    return "19200";
  case B38400:
    return "38400";
  case B57600:
    return "57600";
  case B115200:
    return "115200";
  case B230400:
    return "230400";
  case B460800:
    return "460800";
  }
  return "9600";
}


x86 assembly (clang, -O0):
<getspeedstr>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffff80,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x13,%eax
ja     1270 <getspeedstr+0x170>
mov    -0x18(%rbp),%rax
lea    0xed9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xf2f(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xf15(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xef9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xeec(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xee0(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xed4(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xecd(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xeb8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xed3(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe9c(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe91(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe86(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe7b(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe70(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe65(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe5b(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe51(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe47(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe3e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe35(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    127b <getspeedstr+0x17b>
lea    0xe00(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<getspeedstr>:
add    $0xffffff80,%edi
cmp    $0x13,%edi
ja     111a <getspeedstr+0x1a>
movslq %edi,%rax
lea    0xf42(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xf06(%rip),%rax
ret

LLVM IR (-O0):
@.str = [2 x i8] c"0\00"
@.str.1 = [3 x i8] c"50\00"
@.str.2 = [3 x i8] c"75\00"
@.str.3 = [4 x i8] c"110\00"
@.str.4 = [4 x i8] c"134\00"
@.str.5 = [4 x i8] c"150\00"
@.str.6 = [4 x i8] c"200\00"
@.str.7 = [4 x i8] c"300\00"
@.str.8 = [4 x i8] c"600\00"
@.str.9 = [5 x i8] c"1200\00"
@.str.10 = [5 x i8] c"1800\00"
@.str.11 = [5 x i8] c"2400\00"
@.str.12 = [5 x i8] c"4800\00"
@.str.13 = [5 x i8] c"9600\00"
@.str.14 = [6 x i8] c"19200\00"
@.str.15 = [6 x i8] c"38400\00"
@.str.16 = [6 x i8] c"57600\00"
@.str.17 = [7 x i8] c"115200\00"
@.str.18 = [7 x i8] c"230400\00"
@.str.19 = [7 x i8] c"460800\00"
define i8* @getspeedstr(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %25 [
i32 147, label %5
i32 132, label %6
i32 129, label %7
i32 146, label %8
i32 143, label %9
i32 142, label %10
i32 139, label %11
i32 136, label %12
i32 130, label %13
i32 144, label %14
i32 141, label %15
i32 137, label %16
i32 133, label %17
i32 128, label %18
i32 140, label %19
i32 135, label %20
i32 131, label %21
i32 145, label %22
i32 138, label %23
i32 134, label %24
]
5: ; preds = %1
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0), i8** %2
br label %26
6: ; preds = %1
store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %26
7: ; preds = %1
store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %26
8: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %26
9: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %26
10: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %26
11: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %26
12: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %26
13: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %26
14: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %26
15: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %26
16: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %26
17: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %26
18: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %26
19: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.14, i64 0, i64 0), i8** %2
br label %26
20: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.15, i64 0, i64 0), i8** %2
br label %26
21: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.16, i64 0, i64 0), i8** %2
br label %26
22: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.17, i64 0, i64 0), i8** %2
br label %26
23: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.18, i64 0, i64 0), i8** %2
br label %26
24: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.19, i64 0, i64 0), i8** %2
br label %26
25: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %26
26: ; preds = %25, %24, %23, %22, %21, %20, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6, %5
%27 = load i8*, i8** %2
ret i8* %27
}

LLVM IR (-O2):
@.str = [2 x i8] c"0\00"
@.str.1 = [3 x i8] c"50\00"
@.str.2 = [3 x i8] c"75\00"
@.str.3 = [4 x i8] c"110\00"
@.str.4 = [4 x i8] c"134\00"
@.str.5 = [4 x i8] c"150\00"
@.str.6 = [4 x i8] c"200\00"
@.str.7 = [4 x i8] c"300\00"
@.str.8 = [4 x i8] c"600\00"
@.str.9 = [5 x i8] c"1200\00"
@.str.10 = [5 x i8] c"1800\00"
@.str.11 = [5 x i8] c"2400\00"
@.str.12 = [5 x i8] c"4800\00"
@.str.13 = [5 x i8] c"9600\00"
@.str.14 = [6 x i8] c"19200\00"
@.str.15 = [6 x i8] c"38400\00"
@.str.16 = [6 x i8] c"57600\00"
@.str.17 = [7 x i8] c"115200\00"
@.str.18 = [7 x i8] c"230400\00"
@.str.19 = [7 x i8] c"460800\00"
@reltable.getspeedstr = [20 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.13 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([3 x i8]* @.str.2 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.8 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.16 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([3 x i8]* @.str.1 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.12 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.19 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.15 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.7 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.11 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.18 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.6 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.14 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.10 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.5 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.4 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.9 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.17 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.3 to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str to i64), i64 ptrtoint ([20 x i32]* @reltable.getspeedstr to i64)) to i32)]
define i8* @getspeedstr(i32 %0) {
%2 = add i32 %0, -128
%3 = icmp ult i32 %2, 20
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 ([20 x i32]* @reltable.getspeedstr to i8*), i64 %6)
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ getelementptr inbounds ([5 x i8], [5 x i8]* @.str.13, i64 0, i64 0), %1 ]
ret i8* %9
}