#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(int argc, char *argv[]) {
  float fahrenheit, celsius;
  printf("Enter Celsius temperature: ");
  scanf("%f", &celsius);
  fahrenheit = celsius * (9.0f / 5.0f) + 32.0f;
  printf("Fahrenheit equivalent is: %.2f\n", fahrenheit);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xecb(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed9(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x18(%rbp),%xmm0
movss  0xe9f(%rip),%xmm1
mulss  %xmm1,%xmm0
movss  0xe97(%rip),%xmm1
addss  %xmm1,%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea1(%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    0xee0(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeee(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
movss  0x4(%rsp),%xmm0
mulss  0xeb2(%rip),%xmm0
addss  0xeae(%rip),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xec6(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [28 x i8] c"Enter Celsius temperature: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [32 x i8] c"Fahrenheit equivalent is: %.2f\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca float
%7 = alloca float
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %7)
%10 = load float, float* %7
%11 = call float @llvm.fmuladd.f32(float %10, float 0x3FFCCCCCC0000000, float 3.200000e+01)
store float %11, float* %6
%12 = load float, float* %6
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.2, i64 0, i64 0), double %13)
ret i32 0
}

LLVM IR (-O2):
@.str = [28 x i8] c"Enter Celsius temperature: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [32 x i8] c"Fahrenheit equivalent is: %.2f\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca float
%4 = bitcast float* %3 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 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* %3)
%7 = load float, float* %3
%8 = call float @llvm.fmuladd.f32(float %7, float 0x3FFCCCCCC0000000, float 3.200000e+01)
%9 = fpext float %8 to double
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @.str.2, i64 0, i64 0), double %9)
ret i32 0
}