#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 *);
int main() {
  float m1, m2, g, r;
  printf("Enter 2 masses\n");
  scanf("%f%f", &m1, &m2);
  g = 9.8;
  r = (m1 + m2) * g;
  printf("Tension=\n%f", r);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xece(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed0(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1040 <scanf@plt>
movss  0xea7(%rip),%xmm0
movss  %xmm0,-0x10(%rbp)
movss  -0x8(%rbp),%xmm0
addss  -0xc(%rbp),%xmm0
mulss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe97(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xedd(%rip),%rdi
call   1030 <puts@plt>
lea    0xec0(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1050 <scanf@plt>
movss  0x4(%rsp),%xmm0
addss  (%rsp),%xmm0
mulss  0xe9c(%rip),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe9a(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"Enter 2 masses\0A\00"
@.str.1 = [5 x i8] c"%f%f\00"
@.str.2 = [12 x i8] c"Tension=\0A%f\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 ([16 x i8], [16 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), float* %2, float* %3)
store float 0x40239999A0000000, float* %4
%8 = load float, float* %2
%9 = load float, float* %3
%10 = fadd float %8, %9
%11 = load float, float* %4
%12 = fmul float %10, %11
store float %12, float* %5
%13 = load float, float* %5
%14 = fpext float %13 to double
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), double %14)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [5 x i8] c"%f%f\00"
@.str.2 = [12 x i8] c"Tension=\0A%f\00"
@str = [15 x i8] c"Enter 2 masses\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 @puts(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), float* %1, float* %2)
%7 = load float, float* %1
%8 = load float, float* %2
%9 = fadd float %7, %8
%10 = fmul float %9, 0x40239999A0000000
%11 = fpext float %10 to double
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), double %11)
ret i32 0
}