#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 *);
main() {
  float num1;
  float num2;
  float result;
  printf("This program will allow you to sum two numbers.\n");
  printf("Please input your first number.\n");
  scanf("%f", &num1);
  printf("Please input your second number.\n");
  scanf("%f", &num2);
  result = num1 + num2;
  printf("The result of addition is %f", result);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xed1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf43(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xef7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf25(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x4(%rbp),%xmm0
addss  -0x8(%rbp),%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xee3(%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    0xee1(%rip),%rdi
call   1030 <puts@plt>
lea    0xf05(%rip),%rdi
call   1030 <puts@plt>
lea    0xec6(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xf05(%rip),%rdi
call   1030 <puts@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
movss  0xc(%rsp),%xmm0
addss  0x8(%rsp),%xmm0
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 = [49 x i8] c"This program will allow you to sum two numbers.\0A\00"
@.str.1 = [33 x i8] c"Please input your first number.\0A\00"
@.str.2 = [3 x i8] c"%f\00"
@.str.3 = [34 x i8] c"Please input your second number.\0A\00"
@.str.4 = [29 x i8] c"The result of addition is %f\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %1)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %2)
%9 = load float, float* %1
%10 = load float, float* %2
%11 = fadd float %9, %10
store float %11, float* %3
%12 = load float, float* %3
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.4, i64 0, i64 0), double %13)
ret i32 0
}

LLVM IR (-O2):
@.str.2 = [3 x i8] c"%f\00"
@.str.4 = [29 x i8] c"The result of addition is %f\00"
@str = [48 x i8] c"This program will allow you to sum two numbers.\00"
@str.5 = [32 x i8] c"Please input your first number.\00"
@str.6 = [33 x i8] c"Please input your second number.\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 ([48 x i8], [48 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.5, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %1)
%8 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.6, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %2)
%10 = load float, float* %1
%11 = load float, float* %2
%12 = fadd float %10, %11
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.4, i64 0, i64 0), double %13)
ret i32 0
}