#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[2];
  printf("primer ");
  scanf("%f", &a[0]);
  printf("segundo");
  scanf("%f", &a[1]);
  printf("Tenemos que a[%3.1f %3.1f]\n", a[0], a[1]);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    -0xc(%rbp),%rsi
lea    0xec0(%rip),%rdi
call   1040 <scanf@plt>
lea    0xeb7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    -0xc(%rbp),%rsi
add    $0x4,%rsi
lea    0xe9e(%rip),%rdi
call   1040 <scanf@plt>
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x8(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe8b(%rip),%rdi
mov    $0x2,%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    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xece(%rip),%rbx
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xebd(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0x8(%rsp),%xmm0
movss  0xc(%rsp),%xmm1
cvtss2sd %xmm0,%xmm0
cvtss2sd %xmm1,%xmm1
lea    0xe96(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [8 x i8] c"primer \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [8 x i8] c"segundo\00"
@.str.3 = [28 x i8] c"Tenemos que a[%3.1f %3.1f]\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [2 x float]
store i32 0, i32* %1
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%4 = getelementptr inbounds [2 x float], [2 x float]* %2, i64 0, i64 0
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0))
%7 = getelementptr inbounds [2 x float], [2 x float]* %2, i64 0, i64 1
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %7)
%9 = getelementptr inbounds [2 x float], [2 x float]* %2, i64 0, i64 0
%10 = load float, float* %9
%11 = fpext float %10 to double
%12 = getelementptr inbounds [2 x float], [2 x float]* %2, i64 0, i64 1
%13 = load float, float* %12
%14 = fpext float %13 to double
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.3, i64 0, i64 0), double %11, double %14)
ret i32 0
}

LLVM IR (-O2):
@.str = [8 x i8] c"primer \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [8 x i8] c"segundo\00"
@.str.3 = [28 x i8] c"Tenemos que a[%3.1f %3.1f]\0A\00"
define i32 @main() {
%1 = alloca [2 x float]
%2 = bitcast [2 x float]* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%4 = getelementptr inbounds [2 x float], [2 x float]* %1, i64 0, i64 0
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %4)
%6 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0))
%7 = getelementptr inbounds [2 x float], [2 x float]* %1, i64 0, i64 1
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %7)
%9 = load float, float* %4
%10 = fpext float %9 to double
%11 = load float, float* %7
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str.3, i64 0, i64 0), double %10, double %12)
ret i32 0
}