#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 /*<<< orphan*/ somar(float, float, float *);
int main() {
  float n1;
  float n2;
  float n3;
  float r;
  printf("digite um numero: ");
  scanf("%f", &n1);
  printf("digite um numero: ");
  scanf("%f", &n2);
  somar(n1, n2, &r);
  printf("%.2f\n", r);
  return 1;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xebf(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xe9c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xea1(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
movss  -0xc(%rbp),%xmm1
lea    -0x14(%rbp),%rdi
call   1050 <somar@plt>
movss  -0x14(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe78(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    $0x1,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x18,%rsp
lea    0xec2(%rip),%r14
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xec4(%rip),%rbx
lea    0x14(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x10(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0x14(%rsp),%xmm0
movss  0x10(%rsp),%xmm1
lea    0xc(%rsp),%rdi
call   1050 <somar@plt>
movss  0xc(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe7c(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    $0x1,%eax
add    $0x18,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [19 x i8] c"digite um numero: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [6 x i8] c"%.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 ([19 x i8], [19 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 ([19 x i8], [19 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* %3)
%10 = load float, float* %2
%11 = load float, float* %3
%12 = call i32 @somar(float %10, float %11, float* %5)
%13 = load float, float* %5
%14 = fpext float %13 to double
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), double %14)
ret i32 1
}

LLVM IR (-O2):
@.str = [19 x i8] c"digite um numero: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [6 x i8] c"%.2f\0A\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = bitcast float* %1 to i8*
%5 = bitcast float* %2 to i8*
%6 = bitcast float* %3 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%11 = load float, float* %1
%12 = load float, float* %2
%13 = call i32 @somar(float %11, float %12, float* %3)
%14 = load float, float* %3
%15 = fpext float %14 to double
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), double %15)
ret i32 1
}