#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 *);
float somar(float, float);
int main(void) {
  float a, b, soma;
  printf("Informe um número:");
  scanf("%f", &a);
  printf("Informe outro número:");
  scanf("%f", &b);
  soma = somar(a, b);
  printf("%f + %f = %.f.\n", a, b, soma);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec0(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeb3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xea2(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
movss  -0xc(%rbp),%xmm1
call   1050 <somar@plt>
movss  %xmm0,-0x10(%rbp)
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0xc(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
movss  -0x10(%rbp),%xmm2
cvtss2sd %xmm2,%xmm2
lea    0xe7d(%rip),%rdi
mov    $0x3,%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    0xec4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeca(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xeb9(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0xc(%rsp),%xmm0
movss  0x8(%rsp),%xmm1
call   1050 <somar@plt>
movss  0xc(%rsp),%xmm1
cvtss2sd %xmm1,%xmm3
movss  0x8(%rsp),%xmm1
cvtss2sd %xmm1,%xmm1
cvtss2sd %xmm0,%xmm2
lea    0xe8c(%rip),%rdi
movaps %xmm3,%xmm0
mov    $0x3,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [20 x i8] c"Informe um n\C3\BAmero:\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [23 x i8] c"Informe outro n\C3\BAmero:\00"
@.str.3 = [16 x i8] c"%f + %f = %.f.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 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 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 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* %3)
%9 = load float, float* %2
%10 = load float, float* %3
%11 = call float @somar(float %9, float %10)
store float %11, float* %4
%12 = load float, float* %2
%13 = fpext float %12 to double
%14 = load float, float* %3
%15 = fpext float %14 to double
%16 = load float, float* %4
%17 = fpext float %16 to double
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.3, i64 0, i64 0), double %13, double %15, double %17)
ret i32 0
}

LLVM IR (-O2):
@.str = [20 x i8] c"Informe um n\C3\BAmero:\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [23 x i8] c"Informe outro n\C3\BAmero:\00"
@.str.3 = [16 x i8] c"%f + %f = %.f.\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 ([20 x i8], [20 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 ([23 x i8], [23 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 = call float @somar(float %9, float %10)
%12 = load float, float* %1
%13 = fpext float %12 to double
%14 = load float, float* %2
%15 = fpext float %14 to double
%16 = fpext float %11 to double
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @.str.3, i64 0, i64 0), double %13, double %15, double %16)
ret i32 0
}