#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*/ itoa(int, char *, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  char s[32];
  int n, width;
  printf("Enter a number: ");
  scanf("%d", &n);
  printf("Enter the minimum width: ");
  scanf("%d", &width);
  itoa(n, s, width);
  printf("%s\n", s);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xebd(%rip),%rdi
lea    -0x34(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeb0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe9f(%rip),%rdi
lea    -0x38(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x34(%rbp),%edi
lea    -0x30(%rbp),%rsi
mov    -0x38(%rbp),%edx
call   1050 <itoa@plt>
lea    -0x30(%rbp),%rsi
lea    0xe99(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x30,%rsp
lea    0xeb4(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeb7(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xea6(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0xc(%rsp),%edi
mov    0x8(%rsp),%edx
lea    0x10(%rsp),%rbx
mov    %rbx,%rsi
call   1060 <itoa@plt>
mov    %rbx,%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [17 x i8] c"Enter a number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [26 x i8] c"Enter the minimum width: \00"
@.str.3 = [4 x i8] c"%s\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [32 x i8]
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %4)
%9 = load i32, i32* %3
%10 = getelementptr inbounds [32 x i8], [32 x i8]* %2, i64 0, i64 0
%11 = load i32, i32* %4
%12 = call i32 @itoa(i32 %9, i8* %10, i32 %11)
%13 = getelementptr inbounds [32 x i8], [32 x i8]* %2, i64 0, i64 0
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8* %13)
ret i32 0
}

LLVM IR (-O2):
@.str = [17 x i8] c"Enter a number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [26 x i8] c"Enter the minimum width: \00"
define i32 @main() {
%1 = alloca [32 x i8]
%2 = alloca i32
%3 = alloca i32
%4 = getelementptr inbounds [32 x i8], [32 x i8]* %1, i64 0, i64 0
%5 = bitcast i32* %2 to i8*
%6 = bitcast i32* %3 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @.str.2, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%11 = load i32, i32* %2
%12 = load i32, i32* %3
%13 = call i32 @itoa(i32 %11, i8* %4, i32 %12)
%14 = call i32 @puts(i8* %4)
ret i32 0
}