#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 */
scalar_t__ strcasecmp(char *, char *);
scalar_t__ strcmp(char *, char *);
int IsBuiltInCommand(char *commandName) {
  if (strcasecmp(commandName, "echo") == 0) {
    return 1;
  } else if (strcasecmp(commandName, "cd") == 0) {
    return 1;
  } else if (strcasecmp(commandName, "nice") == 0) {
    return 1;
  } else if (strcasecmp(commandName, "pwd") == 0) {
    return 1;
  } else if (strcasecmp(commandName, "setenv") == 0) {
    return 1;
  } else if (strcasecmp(commandName, "unsetenv") == 0) {
    return 1;
  } else if (strcasecmp(commandName, "logout") == 0) {
    return 1;
  } else if (strcasecmp(commandName, "where") == 0) {
    return 1;
  } else if (strcmp(commandName, "end") == 0) {
    return 1;
  }
  return 0;
}


x86 assembly (clang, -O0):
<IsBuiltInCommand>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xec9(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1152 <IsBuiltInCommand+0x32>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xea8(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1178 <IsBuiltInCommand+0x58>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xe85(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    119e <IsBuiltInCommand+0x7e>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xe64(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    11c4 <IsBuiltInCommand+0xa4>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xe44(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    11ea <IsBuiltInCommand+0xca>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xe1c(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1210 <IsBuiltInCommand+0xf0>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xdff(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1236 <IsBuiltInCommand+0x116>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xde0(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    125c <IsBuiltInCommand+0x13c>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
mov    -0x10(%rbp),%rdi
lea    0xdc0(%rip),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%rax
jne    1282 <IsBuiltInCommand+0x162>
movl   $0x1,-0x4(%rbp)
jmp    12b1 <IsBuiltInCommand+0x191>
jmp    1287 <IsBuiltInCommand+0x167>
jmp    128c <IsBuiltInCommand+0x16c>
jmp    1291 <IsBuiltInCommand+0x171>
jmp    1296 <IsBuiltInCommand+0x176>
jmp    129b <IsBuiltInCommand+0x17b>
jmp    12a0 <IsBuiltInCommand+0x180>
jmp    12a5 <IsBuiltInCommand+0x185>
jmp    12aa <IsBuiltInCommand+0x18a>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<IsBuiltInCommand>:
push   %rbp
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0xed3(%rip),%rsi
call   1030 <strcasecmp@plt>
mov    $0x1,%ebp
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xebe(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xea9(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xe9a(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xe8c(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xe76(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xe6b(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xe5e(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11e8 <IsBuiltInCommand+0xc8>
lea    0xe50(%rip),%rsi
mov    %rbx,%rdi
call   1040 <strcmp@plt>
xor    %ebp,%ebp
test   %rax,%rax
sete   %bpl
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [5 x i8] c"echo\00"
@.str.1 = [3 x i8] c"cd\00"
@.str.2 = [5 x i8] c"nice\00"
@.str.3 = [4 x i8] c"pwd\00"
@.str.4 = [7 x i8] c"setenv\00"
@.str.5 = [9 x i8] c"unsetenv\00"
@.str.6 = [7 x i8] c"logout\00"
@.str.7 = [6 x i8] c"where\00"
@.str.8 = [4 x i8] c"end\00"
define i32 @IsBuiltInCommand(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i64 @strcasecmp(i8* %4, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %8
7: ; preds = %1
store i32 1, i32* %2
br label %57
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i64 @strcasecmp(i8* %9, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%11 = icmp eq i64 %10, 0
br i1 %11, label %12, label %13
12: ; preds = %8
store i32 1, i32* %2
br label %57
13: ; preds = %8
%14 = load i8*, i8** %3
%15 = call i64 @strcasecmp(i8* %14, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0))
%16 = icmp eq i64 %15, 0
br i1 %16, label %17, label %18
17: ; preds = %13
store i32 1, i32* %2
br label %57
18: ; preds = %13
%19 = load i8*, i8** %3
%20 = call i64 @strcasecmp(i8* %19, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%21 = icmp eq i64 %20, 0
br i1 %21, label %22, label %23
22: ; preds = %18
store i32 1, i32* %2
br label %57
23: ; preds = %18
%24 = load i8*, i8** %3
%25 = call i64 @strcasecmp(i8* %24, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.4, i64 0, i64 0))
%26 = icmp eq i64 %25, 0
br i1 %26, label %27, label %28
27: ; preds = %23
store i32 1, i32* %2
br label %57
28: ; preds = %23
%29 = load i8*, i8** %3
%30 = call i64 @strcasecmp(i8* %29, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0))
%31 = icmp eq i64 %30, 0
br i1 %31, label %32, label %33
32: ; preds = %28
store i32 1, i32* %2
br label %57
33: ; preds = %28
%34 = load i8*, i8** %3
%35 = call i64 @strcasecmp(i8* %34, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.6, i64 0, i64 0))
%36 = icmp eq i64 %35, 0
br i1 %36, label %37, label %38
37: ; preds = %33
store i32 1, i32* %2
br label %57
38: ; preds = %33
%39 = load i8*, i8** %3
%40 = call i64 @strcasecmp(i8* %39, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.7, i64 0, i64 0))
%41 = icmp eq i64 %40, 0
br i1 %41, label %42, label %43
42: ; preds = %38
store i32 1, i32* %2
br label %57
43: ; preds = %38
%44 = load i8*, i8** %3
%45 = call i64 @strcmp(i8* %44, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.8, i64 0, i64 0))
%46 = icmp eq i64 %45, 0
br i1 %46, label %47, label %48
47: ; preds = %43
store i32 1, i32* %2
br label %57
48: ; preds = %43
br label %49
49: ; preds = %48
br label %50
50: ; preds = %49
br label %51
51: ; preds = %50
br label %52
52: ; preds = %51
br label %53
53: ; preds = %52
br label %54
54: ; preds = %53
br label %55
55: ; preds = %54
br label %56
56: ; preds = %55
store i32 0, i32* %2
br label %57
57: ; preds = %56, %47, %42, %37, %32, %27, %22, %17, %12, %7
%58 = load i32, i32* %2
ret i32 %58
}

LLVM IR (-O2):
@.str = [5 x i8] c"echo\00"
@.str.1 = [3 x i8] c"cd\00"
@.str.2 = [5 x i8] c"nice\00"
@.str.3 = [4 x i8] c"pwd\00"
@.str.4 = [7 x i8] c"setenv\00"
@.str.5 = [9 x i8] c"unsetenv\00"
@.str.6 = [7 x i8] c"logout\00"
@.str.7 = [6 x i8] c"where\00"
@.str.8 = [4 x i8] c"end\00"
define i32 @IsBuiltInCommand(i8* %0) {
%2 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%3 = icmp eq i64 %2, 0
br i1 %3, label %29, label %4
4: ; preds = %1
%5 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%6 = icmp eq i64 %5, 0
br i1 %6, label %29, label %7
7: ; preds = %4
%8 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0))
%9 = icmp eq i64 %8, 0
br i1 %9, label %29, label %10
10: ; preds = %7
%11 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%12 = icmp eq i64 %11, 0
br i1 %12, label %29, label %13
13: ; preds = %10
%14 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.4, i64 0, i64 0))
%15 = icmp eq i64 %14, 0
br i1 %15, label %29, label %16
16: ; preds = %13
%17 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0))
%18 = icmp eq i64 %17, 0
br i1 %18, label %29, label %19
19: ; preds = %16
%20 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.6, i64 0, i64 0))
%21 = icmp eq i64 %20, 0
br i1 %21, label %29, label %22
22: ; preds = %19
%23 = tail call i64 @strcasecmp(i8* %0, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.7, i64 0, i64 0))
%24 = icmp eq i64 %23, 0
br i1 %24, label %29, label %25
25: ; preds = %22
%26 = tail call i64 @strcmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.8, i64 0, i64 0))
%27 = icmp eq i64 %26, 0
%28 = zext i1 %27 to i32
br label %29
29: ; preds = %25, %22, %19, %16, %13, %10, %7, %4, %1
%30 = phi i32 [ 1, %1 ], [ 1, %4 ], [ 1, %7 ], [ 1, %10 ], [ 1, %13 ], [ 1, %16 ], [ 1, %19 ], [ 1, %22 ], [ %28, %25 ]
ret i32 %30
}