#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__ isalnum(char);
int isLikelyFilenameChar(char c) {
  return isalnum(c) || c == '_' || c == '.' || c == '\\' || c == '/' ||
         c == '-' || c == '+';
}


x86 assembly (clang, -O0):
<isLikelyFilenameChar>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %dil,%al
mov    %al,-0x1(%rbp)
movsbl -0x1(%rbp),%edi
call   1030 <isalnum@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x2(%rbp)
jne    11a0 <isLikelyFilenameChar+0x90>
movsbl -0x1(%rbp),%ecx
mov    $0x1,%al
cmp    $0x5f,%ecx
mov    %al,-0x2(%rbp)
je     11a0 <isLikelyFilenameChar+0x90>
movsbl -0x1(%rbp),%ecx
mov    $0x1,%al
cmp    $0x2e,%ecx
mov    %al,-0x2(%rbp)
je     11a0 <isLikelyFilenameChar+0x90>
movsbl -0x1(%rbp),%ecx
mov    $0x1,%al
cmp    $0x5c,%ecx
mov    %al,-0x2(%rbp)
je     11a0 <isLikelyFilenameChar+0x90>
movsbl -0x1(%rbp),%ecx
mov    $0x1,%al
cmp    $0x2f,%ecx
mov    %al,-0x2(%rbp)
je     11a0 <isLikelyFilenameChar+0x90>
movsbl -0x1(%rbp),%ecx
mov    $0x1,%al
cmp    $0x2d,%ecx
mov    %al,-0x2(%rbp)
je     11a0 <isLikelyFilenameChar+0x90>
movsbl -0x1(%rbp),%eax
cmp    $0x2b,%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):
<isLikelyFilenameChar>:
push   %rbx
mov    %edi,%ebx
call   1030 <isalnum@plt>
mov    %rax,%rcx
mov    $0x1,%eax
test   %rcx,%rcx
je     1127 <isLikelyFilenameChar+0x17>
pop    %rbx
ret
lea    -0x2d(%rbx),%ecx
cmp    $0x32,%cl
ja     1142 <isLikelyFilenameChar+0x32>
movzbl %cl,%ecx
movabs $0x4800000000007,%rdx
bt     %rcx,%rdx
jb     1125 <isLikelyFilenameChar+0x15>
xor    %eax,%eax
cmp    $0x2b,%bl
sete   %al
pop    %rbx
ret

LLVM IR (-O0):
define i32 @isLikelyFilenameChar(i8 signext %0) {
%2 = alloca i8
store i8 %0, i8* %2
%3 = load i8, i8* %2
%4 = call i64 @isalnum(i8 signext %3)
%5 = icmp ne i64 %4, 0
br i1 %5, label %30, label %6
6: ; preds = %1
%7 = load i8, i8* %2
%8 = sext i8 %7 to i32
%9 = icmp eq i32 %8, 95
br i1 %9, label %30, label %10
10: ; preds = %6
%11 = load i8, i8* %2
%12 = sext i8 %11 to i32
%13 = icmp eq i32 %12, 46
br i1 %13, label %30, label %14
14: ; preds = %10
%15 = load i8, i8* %2
%16 = sext i8 %15 to i32
%17 = icmp eq i32 %16, 92
br i1 %17, label %30, label %18
18: ; preds = %14
%19 = load i8, i8* %2
%20 = sext i8 %19 to i32
%21 = icmp eq i32 %20, 47
br i1 %21, label %30, label %22
22: ; preds = %18
%23 = load i8, i8* %2
%24 = sext i8 %23 to i32
%25 = icmp eq i32 %24, 45
br i1 %25, label %30, label %26
26: ; preds = %22
%27 = load i8, i8* %2
%28 = sext i8 %27 to i32
%29 = icmp eq i32 %28, 43
br label %30
30: ; preds = %26, %22, %18, %14, %10, %6, %1
%31 = phi i1 [ true, %22 ], [ true, %18 ], [ true, %14 ], [ true, %10 ], [ true, %6 ], [ true, %1 ], [ %29, %26 ]
%32 = zext i1 %31 to i32
ret i32 %32
}

LLVM IR (-O2):
define i32 @isLikelyFilenameChar(i8 signext %0) {
%2 = tail call i64 @isalnum(i8 signext %0)
%3 = freeze i64 %2
%4 = icmp eq i64 %3, 0
br i1 %4, label %5, label %9
5: ; preds = %1
switch i8 %0, label %6 [
i8 95, label %9
i8 92, label %9
i8 47, label %9
i8 46, label %9
i8 45, label %9
]
6: ; preds = %5
%7 = icmp eq i8 %0, 43
%8 = zext i1 %7 to i32
br label %9
9: ; preds = %5, %5, %5, %5, %5, %1, %6
%10 = phi i32 [ 1, %5 ], [ %8, %6 ], [ 1, %1 ], [ 1, %5 ], [ 1, %5 ], [ 1, %5 ], [ 1, %5 ]
ret i32 %10
}