#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 num = 12;
  char letter;
  float fNum;
  printf("please enter a character: ");
  scanf("%c", &letter);
  printf("please enter a float: ");
  scanf("%f", &fNum);
  printf("num is %d \n", num);
  printf("letter is %c \n", letter);
  printf("fNum is %f \n", fNum);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0xc,-0x8(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed0(%rip),%rdi
lea    -0x9(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
lea    0xec1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeca(%rip),%rdi
lea    -0x10(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
mov    -0x8(%rbp),%esi
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movsbl -0x9(%rbp),%esi
lea    0xeb2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movss  -0x10(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xeaa(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee5(%rip),%rdi
lea    0x3(%rsp),%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
lea    0xed5(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xede(%rip),%rdi
lea    0x4(%rsp),%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
lea    0xece(%rip),%rdi
mov    $0xc,%esi
xor    %eax,%eax
call   1030 <printf@plt>
movsbl 0x3(%rsp),%esi
lea    0xec2(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
movss  0x4(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xeb9(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [27 x i8] c"please enter a character: \00"
@.str.1 = [3 x i8] c"%c\00"
@.str.2 = [23 x i8] c"please enter a float: \00"
@.str.3 = [3 x i8] c"%f\00"
@.str.4 = [12 x i8] c"num is %d \0A\00"
@.str.5 = [15 x i8] c"letter is %c \0A\00"
@.str.6 = [13 x i8] c"fNum is %f \0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i8
%4 = alloca float
store i32 0, i32* %1
store i32 12, i32* %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0))
%6 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %3)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), float* %4)
%9 = load i32, i32* %2
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.4, i64 0, i64 0), i32 %9)
%11 = load i8, i8* %3
%12 = sext i8 %11 to i32
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0), i32 %12)
%14 = load float, float* %4
%15 = fpext float %14 to double
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.6, i64 0, i64 0), double %15)
ret i32 0
}

LLVM IR (-O2):
@.str = [27 x i8] c"please enter a character: \00"
@.str.1 = [3 x i8] c"%c\00"
@.str.2 = [23 x i8] c"please enter a float: \00"
@.str.3 = [3 x i8] c"%f\00"
@.str.4 = [12 x i8] c"num is %d \0A\00"
@.str.5 = [15 x i8] c"letter is %c \0A\00"
@.str.6 = [13 x i8] c"fNum is %f \0A\00"
define i32 @main() {
%1 = alloca i8
%2 = alloca float
%3 = bitcast float* %2 to i8*
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %1)
%6 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), float* %2)
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.4, i64 0, i64 0), i32 12)
%9 = load i8, i8* %1
%10 = sext i8 %9 to i32
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0), i32 %10)
%12 = load float, float* %2
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.6, i64 0, i64 0), double %13)
ret i32 0
}