#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() {
  float basic, rent, med, gross;
  printf("Enter basic salary: ");
  scanf("%f", &basic);
  rent = 0.4 * basic;
  med = 0.05 * basic;
  gross = basic - rent - med;
  printf("Gross salary: %5.1f", gross);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeda(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee1(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm1
movsd  0xeaa(%rip),%xmm0
mulsd  %xmm1,%xmm0
cvtsd2ss %xmm0,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm1
movsd  0xe84(%rip),%xmm0
mulsd  %xmm1,%xmm0
cvtsd2ss %xmm0,%xmm0
movss  %xmm0,-0x10(%rbp)
movss  -0x8(%rbp),%xmm0
subss  -0xc(%rbp),%xmm0
subss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe7b(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xee8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeef(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
movss  0x4(%rsp),%xmm0
cvtss2sd %xmm0,%xmm1
movsd  0xeae(%rip),%xmm2
mulsd  %xmm1,%xmm2
cvtsd2ss %xmm2,%xmm2
mulsd  0xea6(%rip),%xmm1
cvtsd2ss %xmm1,%xmm1
addss  %xmm0,%xmm2
addss  %xmm1,%xmm2
xorps  %xmm0,%xmm0
cvtss2sd %xmm2,%xmm0
lea    0xeac(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [21 x i8] c"Enter basic salary: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [20 x i8] c"Gross salary: %5.1f\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = alloca float
store i32 0, i32* %1
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%8 = load float, float* %2
%9 = fpext float %8 to double
%10 = fmul double 4.000000e-01, %9
%11 = fptrunc double %10 to float
store float %11, float* %3
%12 = load float, float* %2
%13 = fpext float %12 to double
%14 = fmul double 5.000000e-02, %13
%15 = fptrunc double %14 to float
store float %15, float* %4
%16 = load float, float* %2
%17 = load float, float* %3
%18 = fsub float %16, %17
%19 = load float, float* %4
%20 = fsub float %18, %19
store float %20, float* %5
%21 = load float, float* %5
%22 = fpext float %21 to double
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0), double %22)
ret i32 0
}

LLVM IR (-O2):
@.str = [21 x i8] c"Enter basic salary: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [20 x i8] c"Gross salary: %5.1f\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%5 = load float, float* %1
%6 = fpext float %5 to double
%7 = fmul double %6, 4.000000e-01
%8 = fptrunc double %7 to float
%9 = fmul double %6, 5.000000e-02
%10 = fptrunc double %9 to float
%11 = fsub float %5, %8
%12 = fsub float %11, %10
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0), double %13)
ret i32 0
}