#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*/ exec_db(char const *);
int /*<<< orphan*/ open_db(char const *);
scalar_t__ strncmp(char const *, char *, int);
void sqldb(const char *src) {
  if ((strncmp(src, "select", 6) == 0) || (strncmp(src, "SELECT", 6) == 0) ||
      (strncmp(src, "show", 4) == 0) || (strncmp(src, "SHOW", 4) == 0) ||
      (strncmp(src, "desc", 4) == 0) || (strncmp(src, "DESC", 4) == 0)) {
    open_db(src);
  } else {
    exec_db(src);
  }
}


x86 assembly (clang, -O0):
<sqldb>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rdi
lea    0xeb9(%rip),%rsi
mov    $0x6,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
je     11f6 <sqldb+0xc6>
mov    -0x8(%rbp),%rdi
lea    0xea1(%rip),%rsi
mov    $0x6,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
je     11f6 <sqldb+0xc6>
mov    -0x8(%rbp),%rdi
lea    0xe89(%rip),%rsi
mov    $0x4,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
je     11f6 <sqldb+0xc6>
mov    -0x8(%rbp),%rdi
lea    0xe6f(%rip),%rsi
mov    $0x4,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
je     11f6 <sqldb+0xc6>
mov    -0x8(%rbp),%rdi
lea    0xe55(%rip),%rsi
mov    $0x4,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
je     11f6 <sqldb+0xc6>
mov    -0x8(%rbp),%rdi
lea    0xe3b(%rip),%rsi
mov    $0x4,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
jne    1204 <sqldb+0xd4>
mov    -0x8(%rbp),%rdi
call   1030 <open_db@plt>
jmp    120d <sqldb+0xdd>
mov    -0x8(%rbp),%rdi
call   1050 <exec_db@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<sqldb>:
push   %rbx
mov    %rdi,%rbx
lea    0xec5(%rip),%rsi
mov    $0x6,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
je     11d4 <sqldb+0xa4>
lea    0xeb2(%rip),%rsi
mov    %rbx,%rdi
mov    $0x6,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
je     11d4 <sqldb+0xa4>
lea    0xea0(%rip),%rsi
mov    %rbx,%rdi
mov    $0x4,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
je     11d4 <sqldb+0xa4>
lea    0xe8c(%rip),%rsi
mov    %rbx,%rdi
mov    $0x4,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
je     11d4 <sqldb+0xa4>
lea    0xe78(%rip),%rsi
mov    %rbx,%rdi
mov    $0x4,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
je     11d4 <sqldb+0xa4>
lea    0xe64(%rip),%rsi
mov    %rbx,%rdi
mov    $0x4,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
je     11d4 <sqldb+0xa4>
mov    %rbx,%rdi
pop    %rbx
jmp    1050 <exec_db@plt>
mov    %rbx,%rdi
pop    %rbx
jmp    1030 <open_db@plt>

LLVM IR (-O0):
@.str = [7 x i8] c"select\00"
@.str.1 = [7 x i8] c"SELECT\00"
@.str.2 = [5 x i8] c"show\00"
@.str.3 = [5 x i8] c"SHOW\00"
@.str.4 = [5 x i8] c"desc\00"
@.str.5 = [5 x i8] c"DESC\00"
define void @sqldb(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i64 @strncmp(i8* %3, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 6)
%5 = icmp eq i64 %4, 0
br i1 %5, label %26, label %6
6: ; preds = %1
%7 = load i8*, i8** %2
%8 = call i64 @strncmp(i8* %7, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 6)
%9 = icmp eq i64 %8, 0
br i1 %9, label %26, label %10
10: ; preds = %6
%11 = load i8*, i8** %2
%12 = call i64 @strncmp(i8* %11, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i32 4)
%13 = icmp eq i64 %12, 0
br i1 %13, label %26, label %14
14: ; preds = %10
%15 = load i8*, i8** %2
%16 = call i64 @strncmp(i8* %15, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i32 4)
%17 = icmp eq i64 %16, 0
br i1 %17, label %26, label %18
18: ; preds = %14
%19 = load i8*, i8** %2
%20 = call i64 @strncmp(i8* %19, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i32 4)
%21 = icmp eq i64 %20, 0
br i1 %21, label %26, label %22
22: ; preds = %18
%23 = load i8*, i8** %2
%24 = call i64 @strncmp(i8* %23, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.5, i64 0, i64 0), i32 4)
%25 = icmp eq i64 %24, 0
br i1 %25, label %26, label %29
26: ; preds = %22, %18, %14, %10, %6, %1
%27 = load i8*, i8** %2
%28 = call i32 @open_db(i8* %27)
br label %32
29: ; preds = %22
%30 = load i8*, i8** %2
%31 = call i32 @exec_db(i8* %30)
br label %32
32: ; preds = %29, %26
ret void
}

LLVM IR (-O2):
@.str = [7 x i8] c"select\00"
@.str.1 = [7 x i8] c"SELECT\00"
@.str.2 = [5 x i8] c"show\00"
@.str.3 = [5 x i8] c"SHOW\00"
@.str.4 = [5 x i8] c"desc\00"
@.str.5 = [5 x i8] c"DESC\00"
define void @sqldb(i8* %0) {
%2 = tail call i64 @strncmp(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 6)
%3 = icmp eq i64 %2, 0
br i1 %3, label %19, label %4
4: ; preds = %1
%5 = tail call i64 @strncmp(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 6)
%6 = icmp eq i64 %5, 0
br i1 %6, label %19, label %7
7: ; preds = %4
%8 = tail call i64 @strncmp(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i32 4)
%9 = icmp eq i64 %8, 0
br i1 %9, label %19, label %10
10: ; preds = %7
%11 = tail call i64 @strncmp(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i32 4)
%12 = icmp eq i64 %11, 0
br i1 %12, label %19, label %13
13: ; preds = %10
%14 = tail call i64 @strncmp(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i32 4)
%15 = icmp eq i64 %14, 0
br i1 %15, label %19, label %16
16: ; preds = %13
%17 = tail call i64 @strncmp(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.5, i64 0, i64 0), i32 4)
%18 = icmp eq i64 %17, 0
br i1 %18, label %19, label %21
19: ; preds = %16, %13, %10, %7, %4, %1
%20 = tail call i32 @open_db(i8* %0)
br label %23
21: ; preds = %16
%22 = tail call i32 @exec_db(i8* %0)
br label %23
23: ; preds = %21, %19
ret void
}