#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__ checkDigit(char);
scalar_t__ checkLowerCase(char);
scalar_t__ checkUpperCase(char);
bool checkCharInput(char charToCheck) {
  return (checkDigit(charToCheck) || checkUpperCase(charToCheck) ||
          checkLowerCase(charToCheck) || charToCheck == '-' ||
          charToCheck == '_');
}


x86 assembly (clang, -O0):
<checkCharInput>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %dil,%al
mov    %al,-0x1(%rbp)
movsbl -0x1(%rbp),%edi
call   1030 <checkDigit@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x2(%rbp)
jne    11ae <checkCharInput+0x7e>
movsbl -0x1(%rbp),%edi
call   1050 <checkUpperCase@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x2(%rbp)
jne    11ae <checkCharInput+0x7e>
movsbl -0x1(%rbp),%edi
call   1040 <checkLowerCase@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x2(%rbp)
jne    11ae <checkCharInput+0x7e>
movsbl -0x1(%rbp),%ecx
mov    $0x1,%al
cmp    $0x2d,%ecx
mov    %al,-0x2(%rbp)
je     11ae <checkCharInput+0x7e>
movsbl -0x1(%rbp),%eax
cmp    $0x5f,%eax
sete   %al
mov    %al,-0x2(%rbp)
mov    -0x2(%rbp),%al
and    $0x1,%al
movzbl %al,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<checkCharInput>:
push   %rbp
push   %r14
push   %rbx
mov    %edi,%ebp
call   1030 <checkDigit@plt>
mov    $0x1,%ebx
test   %rax,%rax
jne    1172 <checkCharInput+0x42>
movsbl %bpl,%r14d
mov    %r14d,%edi
call   1050 <checkUpperCase@plt>
test   %rax,%rax
jne    1172 <checkCharInput+0x42>
mov    %r14d,%edi
call   1040 <checkLowerCase@plt>
cmp    $0x2d,%r14b
je     1172 <checkCharInput+0x42>
test   %rax,%rax
jne    1172 <checkCharInput+0x42>
xor    %ebx,%ebx
cmp    $0x5f,%bpl
sete   %bl
mov    %ebx,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
define i32 @checkCharInput(i8 signext %0) {
%2 = alloca i8
store i8 %0, i8* %2
%3 = load i8, i8* %2
%4 = call i64 @checkDigit(i8 signext %3)
%5 = icmp ne i64 %4, 0
br i1 %5, label %22, label %6
6: ; preds = %1
%7 = load i8, i8* %2
%8 = call i64 @checkUpperCase(i8 signext %7)
%9 = icmp ne i64 %8, 0
br i1 %9, label %22, label %10
10: ; preds = %6
%11 = load i8, i8* %2
%12 = call i64 @checkLowerCase(i8 signext %11)
%13 = icmp ne i64 %12, 0
br i1 %13, label %22, label %14
14: ; preds = %10
%15 = load i8, i8* %2
%16 = sext i8 %15 to i32
%17 = icmp eq i32 %16, 45
br i1 %17, label %22, label %18
18: ; preds = %14
%19 = load i8, i8* %2
%20 = sext i8 %19 to i32
%21 = icmp eq i32 %20, 95
br label %22
22: ; preds = %18, %14, %10, %6, %1
%23 = phi i1 [ true, %14 ], [ true, %10 ], [ true, %6 ], [ true, %1 ], [ %21, %18 ]
%24 = zext i1 %23 to i32
ret i32 %24
}

LLVM IR (-O2):
define i32 @checkCharInput(i8 signext %0) {
%2 = tail call i64 @checkDigit(i8 signext %0)
%3 = icmp eq i64 %2, 0
br i1 %3, label %4, label %15
4: ; preds = %1
%5 = tail call i64 @checkUpperCase(i8 signext %0)
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %15
7: ; preds = %4
%8 = tail call i64 @checkLowerCase(i8 signext %0)
%9 = icmp ne i64 %8, 0
%10 = icmp eq i8 %0, 45
%11 = or i1 %10, %9
br i1 %11, label %15, label %12
12: ; preds = %7
%13 = icmp eq i8 %0, 95
%14 = zext i1 %13 to i32
br label %15
15: ; preds = %12, %7, %4, %1
%16 = phi i32 [ 1, %7 ], [ 1, %4 ], [ 1, %1 ], [ %14, %12 ]
ret i32 %16
}