#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 fahrenheit, celsius;
  printf("\nEnter temperature in Celsius\n");
  scanf("%f", &celsius);
  fahrenheit = (celsius / (5.0f / 9.0f)) + 32.0f;
  printf("\nTemperature in Fahrenheit is: %f\n", fahrenheit);
  printf("\nEnter temperature in Fahrenheit\n");
  scanf("%f", &fahrenheit);
  celsius = (fahrenheit - 32.0f) * (5.0f / 9.0f);
  printf("\nTemperature in Celsius is: %f\n", celsius);
  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    0xee3(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0xc(%rbp),%xmm0
movss  0xea6(%rip),%xmm1
divss  %xmm1,%xmm0
movss  0xe9e(%rip),%xmm1
addss  %xmm1,%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xeab(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
lea    0xec0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe8c(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
movss  0xe53(%rip),%xmm1
subss  %xmm1,%xmm0
movss  0xe43(%rip),%xmm1
mulss  %xmm1,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe99(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xf16(%rip),%rdi
call   1030 <puts@plt>
lea    0xec4(%rip),%rbx
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
movss  0x8(%rsp),%xmm0
divss  0xe9d(%rip),%xmm0
addss  0xe99(%rip),%xmm0
movss  %xmm0,0xc(%rsp)
cvtss2sd %xmm0,%xmm0
lea    0xe93(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
lea    0xee6(%rip),%rdi
call   1030 <puts@plt>
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
movss  0xc(%rsp),%xmm0
addss  0xe5e(%rip),%xmm0
mulss  0xe4e(%rip),%xmm0
movss  %xmm0,0x8(%rsp)
cvtss2sd %xmm0,%xmm0
lea    0xe6f(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [31 x i8] c"\0AEnter temperature in Celsius\0A\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [35 x i8] c"\0ATemperature in Fahrenheit is: %f\0A\00"
@.str.3 = [34 x i8] c"\0AEnter temperature in Fahrenheit\0A\00"
@.str.4 = [32 x i8] c"\0ATemperature in Celsius is: %f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%6 = load float, float* %3
%7 = fdiv float %6, 0x3FE1C71C80000000
%8 = fadd float %7, 3.200000e+01
store float %8, float* %2
%9 = load float, float* %2
%10 = fpext float %9 to double
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.2, i64 0, i64 0), double %10)
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.3, i64 0, i64 0))
%13 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%14 = load float, float* %2
%15 = fsub float %14, 3.200000e+01
%16 = fmul float %15, 0x3FE1C71C80000000
store float %16, float* %3
%17 = load float, float* %3
%18 = fpext float %17 to double
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.4, i64 0, i64 0), double %18)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [35 x i8] c"\0ATemperature in Fahrenheit is: %f\0A\00"
@.str.4 = [32 x i8] c"\0ATemperature in Celsius is: %f\0A\00"
@str = [30 x i8] c"\0AEnter temperature in Celsius\00"
@str.5 = [33 x i8] c"\0AEnter temperature in Fahrenheit\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = bitcast float* %1 to i8*
%4 = bitcast float* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%7 = load float, float* %2
%8 = fdiv float %7, 0x3FE1C71C80000000
%9 = fadd float %8, 3.200000e+01
store float %9, float* %1
%10 = fpext float %9 to double
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @.str.2, i64 0, i64 0), double %10)
%12 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.5, i64 0, i64 0))
%13 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%14 = load float, float* %1
%15 = fadd float %14, -3.200000e+01
%16 = fmul float %15, 0x3FE1C71C80000000
store float %16, float* %2
%17 = fpext float %16 to double
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @.str.4, i64 0, i64 0), double %17)
ret i32 0
}