#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*/ printf(char *);
int /*<<< orphan*/ test_hex(char *);
int main(void) {
  printf("\n-2\n");
  test_hex("fffffffe");
  printf("\nlen 4\n");
  test_hex("abcd");
  printf("\ninvalid char\n");
  test_hex("m");
  printf("\n1-8\n");
  test_hex("12345678");
  printf("\nmixed case\n");
  test_hex("FFFFFFFE");
  printf("\ninvalid character\n");
  test_hex("FF FFFFFF");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
call   1030 <printf@plt>
lea    0xec3(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xec0(%rip),%rdi
call   1030 <printf@plt>
lea    0xebc(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xeb5(%rip),%rdi
call   1030 <printf@plt>
lea    0xeb8(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xeae(%rip),%rdi
call   1030 <printf@plt>
lea    0xea8(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xea5(%rip),%rdi
call   1030 <printf@plt>
lea    0xea6(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xea3(%rip),%rdi
call   1030 <printf@plt>
lea    0xeab(%rip),%rdi
call   1040 <test_hex@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xf04(%rip),%rdi
call   1030 <puts@plt>
lea    0xecc(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xef0(%rip),%rdi
call   1030 <puts@plt>
lea    0xebd(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xedf(%rip),%rdi
call   1030 <puts@plt>
lea    0xeaa(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xed5(%rip),%rdi
call   1030 <puts@plt>
lea    0xe94(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xec2(%rip),%rdi
call   1030 <puts@plt>
lea    0xe85(%rip),%rdi
call   1040 <test_hex@plt>
lea    0xeb6(%rip),%rdi
call   1030 <puts@plt>
lea    0xe76(%rip),%rdi
call   1040 <test_hex@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [5 x i8] c"\0A-2\0A\00"
@.str.1 = [9 x i8] c"fffffffe\00"
@.str.2 = [8 x i8] c"\0Alen 4\0A\00"
@.str.3 = [5 x i8] c"abcd\00"
@.str.4 = [15 x i8] c"\0Ainvalid char\0A\00"
@.str.5 = [2 x i8] c"m\00"
@.str.6 = [6 x i8] c"\0A1-8\0A\00"
@.str.7 = [9 x i8] c"12345678\00"
@.str.8 = [13 x i8] c"\0Amixed case\0A\00"
@.str.9 = [9 x i8] c"FFFFFFFE\00"
@.str.10 = [20 x i8] c"\0Ainvalid character\0A\00"
@.str.11 = [10 x i8] c"FF FFFFFF\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @test_hex(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0))
%5 = call i32 @test_hex(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0))
%7 = call i32 @test_hex(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.5, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.6, i64 0, i64 0))
%9 = call i32 @test_hex(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.7, i64 0, i64 0))
%10 = call i32 @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.8, i64 0, i64 0))
%11 = call i32 @test_hex(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.9, i64 0, i64 0))
%12 = call i32 @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.10, i64 0, i64 0))
%13 = call i32 @test_hex(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.11, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [9 x i8] c"fffffffe\00"
@.str.3 = [5 x i8] c"abcd\00"
@.str.5 = [2 x i8] c"m\00"
@.str.7 = [9 x i8] c"12345678\00"
@.str.9 = [9 x i8] c"FFFFFFFE\00"
@.str.11 = [10 x i8] c"FF FFFFFF\00"
@str = [4 x i8] c"\0A-2\00"
@str.12 = [7 x i8] c"\0Alen 4\00"
@str.13 = [14 x i8] c"\0Ainvalid char\00"
@str.14 = [5 x i8] c"\0A1-8\00"
@str.15 = [12 x i8] c"\0Amixed case\00"
@str.16 = [19 x i8] c"\0Ainvalid character\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @test_hex(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str.12, i64 0, i64 0))
%4 = tail call i32 @test_hex(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @str.13, i64 0, i64 0))
%6 = tail call i32 @test_hex(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.5, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @str.14, i64 0, i64 0))
%8 = tail call i32 @test_hex(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.7, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str.15, i64 0, i64 0))
%10 = tail call i32 @test_hex(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.9, i64 0, i64 0))
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.16, i64 0, i64 0))
%12 = tail call i32 @test_hex(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.11, i64 0, i64 0))
ret i32 0
}