#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*/ calc_throw(float, float, float const);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
int main() {
  float v_0;
  float t;
  const float g = 9.82;
  printf("v_0:");
  scanf("%f", &v_0);
  printf("t:");
  scanf("%f", &t);
  printf("\nwill use v_0=%f and t=%f\n", v_0, t);
  calc_throw(v_0, t, g);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movss  0xeb9(%rip),%xmm0
movss  %xmm0,-0x10(%rbp)
lea    0xeb1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xea8(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
lea    0xe9b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe8a(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1050 <scanf@plt>
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0xc(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe6e(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movss  -0x8(%rbp),%xmm0
movss  -0xc(%rbp),%xmm1
movss  0xe46(%rip),%xmm2
call   1040 <calc_throw@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xec8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xebf(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xeae(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
movss  0xc(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  0x8(%rsp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe82(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
movss  0xc(%rsp),%xmm0
movss  0x8(%rsp),%xmm1
movss  0xe58(%rip),%xmm2
call   1040 <calc_throw@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [5 x i8] c"v_0:\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [3 x i8] c"t:\00"
@.str.3 = [27 x i8] c"\0Awill use v_0=%f and t=%f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
store float 0x4023A3D700000000, float* %4
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 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 ([3 x i8], [3 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 = fpext float %9 to double
%11 = load float, float* %3
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str.3, i64 0, i64 0), double %10, double %12)
%14 = load float, float* %2
%15 = load float, float* %3
%16 = call i32 @calc_throw(float %14, float %15, float 0x4023A3D700000000)
ret i32 0
}

LLVM IR (-O2):
@.str = [5 x i8] c"v_0:\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [3 x i8] c"t:\00"
@.str.3 = [27 x i8] c"\0Awill use v_0=%f and t=%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 ([5 x i8], [5 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 ([3 x i8], [3 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 = fpext float %9 to double
%11 = load float, float* %2
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([27 x i8], [27 x i8]* @.str.3, i64 0, i64 0), double %10, double %12)
%14 = load float, float* %1
%15 = load float, float* %2
%16 = call i32 @calc_throw(float %14, float %15, float 0x4023A3D700000000)
ret i32 0
}