#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*/ strcasecmp(char *, char const *);
int channel_mode_bit(const char *s) {
  if (!strcasecmp("topic", s))
    return (1 << 4);
  if (!strcasecmp("registered", s))
    return (1 << 0);
  if (!strcasecmp("private", s))
    return (1 << 1);
  if (!strcasecmp("invite", s))
    return (1 << 3);
  if (!strcasecmp("moderated", s))
    return (1 << 2);
  return -1;
}


x86 assembly (clang, -O0):
<channel_mode_bit>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rsi
lea    0xed9(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    1141 <channel_mode_bit+0x31>
movl   $0x10,-0x4(%rbp)
jmp    11dc <channel_mode_bit+0xcc>
mov    -0x10(%rbp),%rsi
lea    0xeba(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    1166 <channel_mode_bit+0x56>
movl   $0x1,-0x4(%rbp)
jmp    11dc <channel_mode_bit+0xcc>
mov    -0x10(%rbp),%rsi
lea    0xea0(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    118b <channel_mode_bit+0x7b>
movl   $0x2,-0x4(%rbp)
jmp    11dc <channel_mode_bit+0xcc>
mov    -0x10(%rbp),%rsi
lea    0xe83(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    11b0 <channel_mode_bit+0xa0>
movl   $0x8,-0x4(%rbp)
jmp    11dc <channel_mode_bit+0xcc>
mov    -0x10(%rbp),%rsi
lea    0xe65(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    11d5 <channel_mode_bit+0xc5>
movl   $0x4,-0x4(%rbp)
jmp    11dc <channel_mode_bit+0xcc>
movl   $0xffffffff,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<channel_mode_bit>:
push   %rbx
mov    %rdi,%rbx
lea    0xee5(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1178 <channel_mode_bit+0x68>
lea    0xed8(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     117f <channel_mode_bit+0x6f>
lea    0xed0(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1186 <channel_mode_bit+0x76>
lea    0xec5(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     118d <channel_mode_bit+0x7d>
lea    0xeb9(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
neg    %eax
sbb    %eax,%eax
or     $0x4,%eax
pop    %rbx
ret
mov    $0x10,%eax
pop    %rbx
ret
mov    $0x1,%eax
pop    %rbx
ret
mov    $0x2,%eax
pop    %rbx
ret
mov    $0x8,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [6 x i8] c"topic\00"
@.str.1 = [11 x i8] c"registered\00"
@.str.2 = [8 x i8] c"private\00"
@.str.3 = [7 x i8] c"invite\00"
@.str.4 = [10 x i8] c"moderated\00"
define i32 @channel_mode_bit(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i32 @strcasecmp(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = icmp ne i32 %5, 0
br i1 %6, label %8, label %7
7: ; preds = %1
store i32 16, i32* %2
br label %29
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i32 @strcasecmp(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i8* %9)
%11 = icmp ne i32 %10, 0
br i1 %11, label %13, label %12
12: ; preds = %8
store i32 1, i32* %2
br label %29
13: ; preds = %8
%14 = load i8*, i8** %3
%15 = call i32 @strcasecmp(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0), i8* %14)
%16 = icmp ne i32 %15, 0
br i1 %16, label %18, label %17
17: ; preds = %13
store i32 2, i32* %2
br label %29
18: ; preds = %13
%19 = load i8*, i8** %3
%20 = call i32 @strcasecmp(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* %19)
%21 = icmp ne i32 %20, 0
br i1 %21, label %23, label %22
22: ; preds = %18
store i32 8, i32* %2
br label %29
23: ; preds = %18
%24 = load i8*, i8** %3
%25 = call i32 @strcasecmp(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0), i8* %24)
%26 = icmp ne i32 %25, 0
br i1 %26, label %28, label %27
27: ; preds = %23
store i32 4, i32* %2
br label %29
28: ; preds = %23
store i32 -1, i32* %2
br label %29
29: ; preds = %28, %27, %22, %17, %12, %7
%30 = load i32, i32* %2
ret i32 %30
}

LLVM IR (-O2):
@.str = [6 x i8] c"topic\00"
@.str.1 = [11 x i8] c"registered\00"
@.str.2 = [8 x i8] c"private\00"
@.str.3 = [7 x i8] c"invite\00"
@.str.4 = [10 x i8] c"moderated\00"
define i32 @channel_mode_bit(i8* nocapture %0) {
%2 = tail call i32 @strcasecmp(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = icmp eq i32 %2, 0
br i1 %3, label %17, label %4
4: ; preds = %1
%5 = tail call i32 @strcasecmp(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%6 = icmp eq i32 %5, 0
br i1 %6, label %17, label %7
7: ; preds = %4
%8 = tail call i32 @strcasecmp(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%9 = icmp eq i32 %8, 0
br i1 %9, label %17, label %10
10: ; preds = %7
%11 = tail call i32 @strcasecmp(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* %0)
%12 = icmp eq i32 %11, 0
br i1 %12, label %17, label %13
13: ; preds = %10
%14 = tail call i32 @strcasecmp(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0), i8* %0)
%15 = icmp eq i32 %14, 0
%16 = select i1 %15, i32 4, i32 -1
br label %17
17: ; preds = %13, %10, %7, %4, %1
%18 = phi i32 [ 16, %1 ], [ 1, %4 ], [ 2, %7 ], [ 8, %10 ], [ %16, %13 ]
ret i32 %18
}