#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 htoi(char *);
int /*<<< orphan*/ printf(char *, int);
main() {
  printf("0x123456789=%u\n", htoi("012345678"));
  printf("0xDEADBEAF=%u\n", htoi("0xDeaDBeaF"));
  printf("0x00000000=%u\n", htoi("00000000"));
  printf("0x0A1F9b=%u\n", htoi("0A1F9b"));
  printf("OxF1=%u\n", htoi("0xF1~"));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeda(%rip),%rdi
call   1040 <htoi@plt>
mov    %eax,%esi
lea    0xebc(%rip),%rdi
call   1030 <printf@plt>
lea    0xed9(%rip),%rdi
call   1040 <htoi@plt>
mov    %eax,%esi
lea    0xebc(%rip),%rdi
call   1030 <printf@plt>
lea    0xed9(%rip),%rdi
call   1040 <htoi@plt>
mov    %eax,%esi
lea    0xebc(%rip),%rdi
call   1030 <printf@plt>
lea    0xed5(%rip),%rdi
call   1040 <htoi@plt>
mov    %eax,%esi
lea    0xeba(%rip),%rdi
call   1030 <printf@plt>
lea    0xecb(%rip),%rdi
call   1040 <htoi@plt>
mov    %eax,%esi
lea    0xeb4(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xee8(%rip),%rdi
call   1040 <htoi@plt>
lea    0xecc(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
lea    0xee7(%rip),%rdi
call   1040 <htoi@plt>
lea    0xecc(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
lea    0xee7(%rip),%rdi
call   1040 <htoi@plt>
lea    0xecc(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
lea    0xee3(%rip),%rdi
call   1040 <htoi@plt>
lea    0xeca(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
lea    0xed9(%rip),%rdi
call   1040 <htoi@plt>
lea    0xec4(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"0x123456789=%u\0A\00"
@.str.1 = [10 x i8] c"012345678\00"
@.str.2 = [15 x i8] c"0xDEADBEAF=%u\0A\00"
@.str.3 = [11 x i8] c"0xDeaDBeaF\00"
@.str.4 = [15 x i8] c"0x00000000=%u\0A\00"
@.str.5 = [9 x i8] c"00000000\00"
@.str.6 = [13 x i8] c"0x0A1F9b=%u\0A\00"
@.str.7 = [7 x i8] c"0A1F9b\00"
@.str.8 = [9 x i8] c"OxF1=%u\0A\00"
@.str.9 = [6 x i8] c"0xF1~\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @htoi(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i32 %2)
%4 = call i32 @htoi(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0), i32 %4)
%6 = call i32 @htoi(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0), i32 %6)
%8 = call i32 @htoi(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0))
%9 = call i32 @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.6, i64 0, i64 0), i32 %8)
%10 = call i32 @htoi(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.9, i64 0, i64 0))
%11 = call i32 @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.8, i64 0, i64 0), i32 %10)
ret i32 0
}

LLVM IR (-O2):
@.str = [16 x i8] c"0x123456789=%u\0A\00"
@.str.1 = [10 x i8] c"012345678\00"
@.str.2 = [15 x i8] c"0xDEADBEAF=%u\0A\00"
@.str.3 = [11 x i8] c"0xDeaDBeaF\00"
@.str.4 = [15 x i8] c"0x00000000=%u\0A\00"
@.str.5 = [9 x i8] c"00000000\00"
@.str.6 = [13 x i8] c"0x0A1F9b=%u\0A\00"
@.str.7 = [7 x i8] c"0A1F9b\00"
@.str.8 = [9 x i8] c"OxF1=%u\0A\00"
@.str.9 = [6 x i8] c"0xF1~\00"
define i32 @main() {
%1 = tail call i32 @htoi(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0))
%2 = tail call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = tail call i32 @htoi(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
%4 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0), i32 %3)
%5 = tail call i32 @htoi(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.5, i64 0, i64 0))
%6 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0), i32 %5)
%7 = tail call i32 @htoi(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0))
%8 = tail call i32 @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.6, i64 0, i64 0), i32 %7)
%9 = tail call i32 @htoi(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.9, i64 0, i64 0))
%10 = tail call i32 @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.8, i64 0, i64 0), i32 %9)
ret i32 0
}