#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__ character_within_range(char, int, int);
bool character_is_alphanumeric(char character) {
  return (character_within_range(character, 0x30, 0x39) ||
          character_within_range(character, 0x41, 0x5A) ||
          character_within_range(character, 0x61, 0x7A));
}


x86 assembly (clang, -O0):
<character_is_alphanumeric>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %dil,%al
mov    %al,-0x1(%rbp)
mov    $0x30,%esi
mov    $0x39,%edx
movsbl -0x1(%rbp),%edi
call   1030 <character_within_range@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x2(%rbp)
jne    1185 <character_is_alphanumeric+0x75>
mov    $0x41,%esi
mov    $0x5a,%edx
movsbl -0x1(%rbp),%edi
call   1030 <character_within_range@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x2(%rbp)
jne    1185 <character_is_alphanumeric+0x75>
mov    $0x61,%esi
mov    $0x7a,%edx
movsbl -0x1(%rbp),%edi
call   1030 <character_within_range@plt>
cmp    $0x0,%rax
setne  %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):
<character_is_alphanumeric>:
push   %rbp
push   %rbx
push   %rax
mov    %edi,%ebp
mov    $0x30,%esi
mov    $0x39,%edx
call   1030 <character_within_range@plt>
mov    $0x1,%ebx
test   %rax,%rax
jne    1161 <character_is_alphanumeric+0x51>
movsbl %bpl,%ebp
mov    %ebp,%edi
mov    $0x41,%esi
mov    $0x5a,%edx
call   1030 <character_within_range@plt>
test   %rax,%rax
jne    1161 <character_is_alphanumeric+0x51>
mov    %ebp,%edi
mov    $0x61,%esi
mov    $0x7a,%edx
call   1030 <character_within_range@plt>
xor    %ebx,%ebx
test   %rax,%rax
setne  %bl
mov    %ebx,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
define i32 @character_is_alphanumeric(i8 signext %0) {
%2 = alloca i8
store i8 %0, i8* %2
%3 = load i8, i8* %2
%4 = call i64 @character_within_range(i8 signext %3, i32 48, i32 57)
%5 = icmp ne i64 %4, 0
br i1 %5, label %14, label %6
6: ; preds = %1
%7 = load i8, i8* %2
%8 = call i64 @character_within_range(i8 signext %7, i32 65, i32 90)
%9 = icmp ne i64 %8, 0
br i1 %9, label %14, label %10
10: ; preds = %6
%11 = load i8, i8* %2
%12 = call i64 @character_within_range(i8 signext %11, i32 97, i32 122)
%13 = icmp ne i64 %12, 0
br label %14
14: ; preds = %10, %6, %1
%15 = phi i1 [ true, %6 ], [ true, %1 ], [ %13, %10 ]
%16 = zext i1 %15 to i32
ret i32 %16
}

LLVM IR (-O2):
define i32 @character_is_alphanumeric(i8 signext %0) {
%2 = tail call i64 @character_within_range(i8 signext %0, i32 48, i32 57)
%3 = icmp eq i64 %2, 0
br i1 %3, label %4, label %11
4: ; preds = %1
%5 = tail call i64 @character_within_range(i8 signext %0, i32 65, i32 90)
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %11
7: ; preds = %4
%8 = tail call i64 @character_within_range(i8 signext %0, i32 97, i32 122)
%9 = icmp ne i64 %8, 0
%10 = zext i1 %9 to i32
br label %11
11: ; preds = %7, %4, %1
%12 = phi i32 [ 1, %4 ], [ 1, %1 ], [ %10, %7 ]
ret i32 %12
}