#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 *, float *);
int main(void) {
  float salary;
  printf("\aEnter your desired monthly salary:");
  printf(" $_______\b\b\b\b\b\b\b");
  scanf("%f", &salary);
  printf("\n\t$%.2f a month is $%.2f a year.", salary, salary * 12.0);
  printf("\r Gee!\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xed2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeeb(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x8(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
movsd  0xe8b(%rip),%xmm2
mulsd  %xmm2,%xmm1
lea    0xec0(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed0(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xee6(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xee9(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
movss  0x4(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
movsd  0xe90(%rip),%xmm1
mulsd  %xmm0,%xmm1
lea    0xec5(%rip),%rdi
mov    $0x2,%al
call   1040 <printf@plt>
lea    0xed8(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [36 x i8] c"\07Enter your desired monthly salary:\00"
@.str.1 = [17 x i8] c" $_______\08\08\08\08\08\08\08\00"
@.str.2 = [3 x i8] c"%f\00"
@.str.3 = [33 x i8] c"\0A\09$%.2f a month is $%.2f a year.\00"
@.str.4 = [8 x i8] c"\0D Gee!\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
store i32 0, i32* %1
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str, i64 0, i64 0))
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %2)
%6 = load float, float* %2
%7 = fpext float %6 to double
%8 = load float, float* %2
%9 = fpext float %8 to double
%10 = fmul double %9, 1.200000e+01
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.3, i64 0, i64 0), double %7, double %10)
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [36 x i8] c"\07Enter your desired monthly salary:\00"
@.str.1 = [17 x i8] c" $_______\08\08\08\08\08\08\08\00"
@.str.2 = [3 x i8] c"%f\00"
@.str.3 = [33 x i8] c"\0A\09$%.2f a month is $%.2f a year.\00"
@str = [7 x i8] c"\0D Gee!\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([36 x i8], [36 x i8]* @.str, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %1)
%6 = load float, float* %1
%7 = fpext float %6 to double
%8 = fmul double %7, 1.200000e+01
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.3, i64 0, i64 0), double %7, double %8)
%10 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str, i64 0, i64 0))
ret i32 0
}