#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 */
float gallonsToLiters(float);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
int main() {
  float gal = 0.0, result = 0.0;
  printf(
      "\nPlease enter the number of gallons to find the liter equivalent--> ");
  scanf("%f", &gal);
  result = gallonsToLiters(gal);
  printf("\n%f liters\n", result);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x8(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0xc(%rbp)
lea    0xeaa(%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
call   1050 <gallonsToLiters@plt>
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xebc(%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
movl   $0x0,0x4(%rsp)
lea    0xec0(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xef7(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
movss  0x4(%rsp),%xmm0
call   1050 <gallonsToLiters@plt>
cvtss2sd %xmm0,%xmm0
lea    0xeda(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [69 x i8] c"\0APlease enter the number of gallons to find the liter equivalent--> \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [12 x i8] c"\0A%f liters\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
store i32 0, i32* %1
store float 0.000000e+00, float* %2
store float 0.000000e+00, float* %3
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([69 x i8], [69 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* %2)
%6 = load float, float* %2
%7 = call float @gallonsToLiters(float %6)
store float %7, float* %3
%8 = load float, float* %3
%9 = fpext float %8 to double
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), double %9)
ret i32 0
}

LLVM IR (-O2):
@.str = [69 x i8] c"\0APlease enter the number of gallons to find the liter equivalent--> \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [12 x i8] c"\0A%f liters\0A\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
store float 0.000000e+00, float* %1
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([69 x i8], [69 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 = call float @gallonsToLiters(float %5)
%7 = fpext float %6 to double
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), double %7)
ret i32 0
}