#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 main() {
  int number;
  char text[20];
  printf("We're going to work with inputs.\n\n");
  printf("please enter an integer:\n");
  scanf("%i", &number);
  printf("You entered %i\n\n", number);
  printf("Now lets try entering some text:\n");
  scanf("%s", text);
  printf("You entered: %s\n\n\n", text);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xedf(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeeb(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
mov    -0x8(%rbp),%esi
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xedc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    -0x20(%rbp),%rsi
lea    0xeec(%rip),%rdi
mov    $0x0,%al
call   1040 <scanf@plt>
lea    -0x20(%rbp),%rsi
lea    0xedd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x30,%rsp
lea    0xeee(%rip),%rdi
call   1030 <puts@plt>
lea    0xf04(%rip),%rdi
call   1030 <puts@plt>
lea    0xeac(%rip),%rdi
lea    0xc(%rsp),%rsi
xor    %eax,%eax
call   1050 <scanf@plt>
mov    0xc(%rsp),%esi
lea    0xe98(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeec(%rip),%rdi
call   1030 <puts@plt>
lea    0xe8f(%rip),%rdi
lea    0x10(%rsp),%rbx
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <scanf@plt>
lea    0xe7c(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [35 x i8] c"We're going to work with inputs.\0A\0A\00"
@.str.1 = [26 x i8] c"please enter an integer:\0A\00"
@.str.2 = [3 x i8] c"%i\00"
@.str.3 = [17 x i8] c"You entered %i\0A\0A\00"
@.str.4 = [34 x i8] c"Now lets try entering some text:\0A\00"
@.str.5 = [3 x i8] c"%s\00"
@.str.6 = [19 x i8] c"You entered: %s\0A\0A\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca [20 x i8]
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%7 = load i32, i32* %2
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.3, i64 0, i64 0), i32 %7)
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.4, i64 0, i64 0))
%10 = getelementptr inbounds [20 x i8], [20 x i8]* %3, i64 0, i64 0
%11 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i8* %10)
%12 = getelementptr inbounds [20 x i8], [20 x i8]* %3, i64 0, i64 0
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.6, i64 0, i64 0), i8* %12)
ret i32 0
}

LLVM IR (-O2):
@.str.2 = [3 x i8] c"%i\00"
@.str.3 = [17 x i8] c"You entered %i\0A\0A\00"
@.str.5 = [3 x i8] c"%s\00"
@.str.6 = [19 x i8] c"You entered: %s\0A\0A\0A\00"
@str = [34 x i8] c"We're going to work with inputs.\0A\00"
@str.7 = [25 x i8] c"please enter an integer:\00"
@str.8 = [33 x i8] c"Now lets try entering some text:\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [20 x i8]
%3 = bitcast i32* %1 to i8*
%4 = getelementptr inbounds [20 x i8], [20 x i8]* %2, i64 0, i64 0
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @str.7, i64 0, i64 0))
%7 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%8 = load i32, i32* %1
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.3, i64 0, i64 0), i32 %8)
%10 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.8, i64 0, i64 0))
%11 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i8* %4)
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.6, i64 0, i64 0), i8* %4)
ret i32 0
}