#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 a, b, f, s;
  printf("Ingrese el primer numero (a): ");
  scanf("%f", &a);
  printf("Ingrese el segundo numero (b): ");
  scanf("%f", &b);
  f = (a + b) * (a - b);
  s = a * a - b * b;
  printf("\n(a + b) * (a - b): %.2f\n", f);
  printf("a^2 - b^2: %.2f\n", s);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xedb(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xece(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xebd(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
addss  -0xc(%rbp),%xmm0
movss  -0x8(%rbp),%xmm1
subss  -0xc(%rbp),%xmm1
mulss  %xmm1,%xmm0
movss  %xmm0,-0x10(%rbp)
movss  -0x8(%rbp),%xmm0
movss  -0x8(%rbp),%xmm2
movss  -0xc(%rbp),%xmm1
mulss  -0xc(%rbp),%xmm1
movd   %xmm1,%eax
xor    $0x80000000,%eax
movd   %eax,%xmm1
mulss  %xmm2,%xmm0
addss  %xmm1,%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x10(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe7c(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  -0x14(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe7f(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee5(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0xc(%rsp),%xmm3
movss  0x8(%rsp),%xmm0
movaps %xmm3,%xmm1
addss  %xmm0,%xmm1
movaps %xmm3,%xmm2
subss  %xmm0,%xmm2
mulss  %xmm1,%xmm2
mulss  %xmm0,%xmm0
mulss  %xmm3,%xmm3
subss  %xmm0,%xmm3
movss  %xmm3,0x4(%rsp)
xorps  %xmm0,%xmm0
cvtss2sd %xmm2,%xmm0
lea    0xea2(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  0x4(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea4(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [31 x i8] c"Ingrese el primer numero (a): \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [32 x i8] c"Ingrese el segundo numero (b): \00"
@.str.3 = [26 x i8] c"\0A(a + b) * (a - b): %.2f\0A\00"
@.str.4 = [17 x i8] c"a^2 - b^2: %.2f\0A\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 ([31 x i8], [31 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 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.2, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%10 = load float, float* %2
%11 = load float, float* %3
%12 = fadd float %10, %11
%13 = load float, float* %2
%14 = load float, float* %3
%15 = fsub float %13, %14
%16 = fmul float %12, %15
store float %16, float* %4
%17 = load float, float* %2
%18 = load float, float* %2
%19 = load float, float* %3
%20 = load float, float* %3
%21 = fmul float %19, %20
%22 = fneg float %21
%23 = call float @llvm.fmuladd.f32(float %17, float %18, float %22)
store float %23, float* %5
%24 = load float, float* %4
%25 = fpext float %24 to double
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.3, i64 0, i64 0), double %25)
%27 = load float, float* %5
%28 = fpext float %27 to double
%29 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.4, i64 0, i64 0), double %28)
ret i32 0
}

LLVM IR (-O2):
@.str = [31 x i8] c"Ingrese el primer numero (a): \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [32 x i8] c"Ingrese el segundo numero (b): \00"
@.str.3 = [26 x i8] c"\0A(a + b) * (a - b): %.2f\0A\00"
@.str.4 = [17 x i8] c"a^2 - b^2: %.2f\0A\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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 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* %1)
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%9 = load float, float* %1
%10 = load float, float* %2
%11 = fadd float %9, %10
%12 = fsub float %9, %10
%13 = fmul float %11, %12
%14 = fneg float %10
%15 = fmul float %10, %14
%16 = call float @llvm.fmuladd.f32(float %9, float %9, float %15)
%17 = fpext float %13 to double
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @.str.3, i64 0, i64 0), double %17)
%19 = fpext float %16 to double
%20 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.4, i64 0, i64 0), double %19)
ret i32 0
}