#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*/ scanf(char *, int *);
int main(int argc, const char *argv[]) {
  int age;
  printf("===== Exercise 1 =====\n");
  printf("Enter the age you want to know how many days that the person has "
         "lived(The calculation is conducted roughly).: ");
  scanf("%i", &age);
  int days = age * 365;
  printf("--> He/She has lived for %i days.\n", days);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf2f(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1040 <scanf@plt>
imul   $0x16d,-0x14(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x18(%rbp),%esi
lea    0xf15(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xf5e(%rip),%rdi
call   1030 <puts@plt>
lea    0xebc(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf1e(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
imul   $0x16d,0x4(%rsp),%esi
lea    0xf08(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [24 x i8] c"===== Exercise 1 =====\0A\00"
@.str.1 = [112 x i8] c"Enter the age you want to know how many days that the person has lived(The calculation is conducted roughly).: \00"
@.str.2 = [3 x i8] c"%i\00"
@.str.3 = [35 x i8] c"--> He/She has lived for %i days.\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([112 x i8], [112 x i8]* @.str.1, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %6)
%11 = load i32, i32* %6
%12 = mul nsw i32 %11, 365
store i32 %12, i32* %7
%13 = load i32, i32* %7
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.3, i64 0, i64 0), i32 %13)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [112 x i8] c"Enter the age you want to know how many days that the person has lived(The calculation is conducted roughly).: \00"
@.str.2 = [3 x i8] c"%i\00"
@.str.3 = [35 x i8] c"--> He/She has lived for %i days.\0A\00"
@str = [23 x i8] c"===== Exercise 1 =====\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = bitcast i32* %3 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([112 x i8], [112 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %3)
%8 = load i32, i32* %3
%9 = mul nsw i32 %8, 365
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @.str.3, i64 0, i64 0), i32 %9)
ret i32 0
}