#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*/ strncmp(char *, char *, int);
int qCheckURL(char *url) {
  if (!strncmp(url, "http://", 7))
    return 1;
  else if (!strncmp(url, "ftp://", 6))
    return 1;
  else if (!strncmp(url, "telnet://", 9))
    return 1;
  else if (!strncmp(url, "mailto:", 7))
    return 1;
  else if (!strncmp(url, "news:", 5))
    return 1;
  return 0;
}


x86 assembly (clang, -O0):
<qCheckURL>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xed9(%rip),%rsi
mov    $0x7,%edx
call   1030 <strncmp@plt>
cmp    $0x0,%eax
jne    1146 <qCheckURL+0x36>
movl   $0x1,-0x4(%rbp)
jmp    1209 <qCheckURL+0xf9>
mov    -0x10(%rbp),%rdi
lea    0xeb7(%rip),%rsi
mov    $0x6,%edx
call   1030 <strncmp@plt>
cmp    $0x0,%eax
jne    1170 <qCheckURL+0x60>
movl   $0x1,-0x4(%rbp)
jmp    1209 <qCheckURL+0xf9>
mov    -0x10(%rbp),%rdi
lea    0xe94(%rip),%rsi
mov    $0x9,%edx
call   1030 <strncmp@plt>
cmp    $0x0,%eax
jne    119a <qCheckURL+0x8a>
movl   $0x1,-0x4(%rbp)
jmp    1209 <qCheckURL+0xf9>
mov    -0x10(%rbp),%rdi
lea    0xe74(%rip),%rsi
mov    $0x7,%edx
call   1030 <strncmp@plt>
cmp    $0x0,%eax
jne    11c4 <qCheckURL+0xb4>
movl   $0x1,-0x4(%rbp)
jmp    1209 <qCheckURL+0xf9>
mov    -0x10(%rbp),%rdi
lea    0xe52(%rip),%rsi
mov    $0x5,%edx
call   1030 <strncmp@plt>
cmp    $0x0,%eax
jne    11ee <qCheckURL+0xde>
movl   $0x1,-0x4(%rbp)
jmp    1209 <qCheckURL+0xf9>
jmp    11f3 <qCheckURL+0xe3>
jmp    11f8 <qCheckURL+0xe8>
jmp    11fd <qCheckURL+0xed>
jmp    1202 <qCheckURL+0xf2>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<qCheckURL>:
push   %rbp
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0xee3(%rip),%rsi
mov    $0x7,%edx
call   1030 <strncmp@plt>
mov    $0x1,%ebp
test   %eax,%eax
je     1194 <qCheckURL+0x84>
lea    0xed1(%rip),%rsi
mov    %rbx,%rdi
mov    $0x6,%edx
call   1030 <strncmp@plt>
test   %eax,%eax
je     1194 <qCheckURL+0x84>
lea    0xec0(%rip),%rsi
mov    %rbx,%rdi
mov    $0x9,%edx
call   1030 <strncmp@plt>
test   %eax,%eax
je     1194 <qCheckURL+0x84>
lea    0xeb2(%rip),%rsi
mov    %rbx,%rdi
mov    $0x7,%edx
call   1030 <strncmp@plt>
test   %eax,%eax
je     1194 <qCheckURL+0x84>
lea    0xea2(%rip),%rsi
mov    %rbx,%rdi
mov    $0x5,%edx
call   1030 <strncmp@plt>
xor    %ebp,%ebp
test   %eax,%eax
sete   %bpl
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [8 x i8] c"http://\00"
@.str.1 = [7 x i8] c"ftp://\00"
@.str.2 = [10 x i8] c"telnet://\00"
@.str.3 = [8 x i8] c"mailto:\00"
@.str.4 = [6 x i8] c"news:\00"
define i32 @qCheckURL(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i32 @strncmp(i8* %4, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 7)
%6 = icmp ne i32 %5, 0
br i1 %6, label %8, label %7
7: ; preds = %1
store i32 1, i32* %2
br label %33
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i32 @strncmp(i8* %9, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 6)
%11 = icmp ne i32 %10, 0
br i1 %11, label %13, label %12
12: ; preds = %8
store i32 1, i32* %2
br label %33
13: ; preds = %8
%14 = load i8*, i8** %3
%15 = call i32 @strncmp(i8* %14, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0), i32 9)
%16 = icmp ne i32 %15, 0
br i1 %16, label %18, label %17
17: ; preds = %13
store i32 1, i32* %2
br label %33
18: ; preds = %13
%19 = load i8*, i8** %3
%20 = call i32 @strncmp(i8* %19, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i32 7)
%21 = icmp ne i32 %20, 0
br i1 %21, label %23, label %22
22: ; preds = %18
store i32 1, i32* %2
br label %33
23: ; preds = %18
%24 = load i8*, i8** %3
%25 = call i32 @strncmp(i8* %24, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i32 5)
%26 = icmp ne i32 %25, 0
br i1 %26, label %28, label %27
27: ; preds = %23
store i32 1, i32* %2
br label %33
28: ; preds = %23
br label %29
29: ; preds = %28
br label %30
30: ; preds = %29
br label %31
31: ; preds = %30
br label %32
32: ; preds = %31
store i32 0, i32* %2
br label %33
33: ; preds = %32, %27, %22, %17, %12, %7
%34 = load i32, i32* %2
ret i32 %34
}

LLVM IR (-O2):
@.str = [8 x i8] c"http://\00"
@.str.1 = [7 x i8] c"ftp://\00"
@.str.2 = [10 x i8] c"telnet://\00"
@.str.3 = [8 x i8] c"mailto:\00"
@.str.4 = [6 x i8] c"news:\00"
define i32 @qCheckURL(i8* %0) {
%2 = tail call i32 @strncmp(i8* %0, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 7)
%3 = icmp eq i32 %2, 0
br i1 %3, label %17, label %4
4: ; preds = %1
%5 = tail call i32 @strncmp(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 6)
%6 = icmp eq i32 %5, 0
br i1 %6, label %17, label %7
7: ; preds = %4
%8 = tail call i32 @strncmp(i8* %0, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0), i32 9)
%9 = icmp eq i32 %8, 0
br i1 %9, label %17, label %10
10: ; preds = %7
%11 = tail call i32 @strncmp(i8* %0, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i32 7)
%12 = icmp eq i32 %11, 0
br i1 %12, label %17, label %13
13: ; preds = %10
%14 = tail call i32 @strncmp(i8* %0, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i32 5)
%15 = icmp eq i32 %14, 0
%16 = zext i1 %15 to i32
br label %17
17: ; preds = %13, %10, %7, %4, %1
%18 = phi i32 [ 1, %1 ], [ 1, %4 ], [ 1, %7 ], [ 1, %10 ], [ %16, %13 ]
ret i32 %18
}