#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 */
scalar_t__ sqrt(float);
void normalizef(float v[3]) {
  float r;
  r = (float)sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
  if (r == 0.0)
    return;
  r = 1.f / r;
  v[0] *= r;
  v[1] *= r;
  v[2] *= r;
}


x86 assembly (clang, -O0):
<normalizef>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rax
movss  (%rax),%xmm1
mov    -0x8(%rbp),%rax
movss  (%rax),%xmm2
mov    -0x8(%rbp),%rax
movss  0x4(%rax),%xmm0
mov    -0x8(%rbp),%rax
mulss  0x4(%rax),%xmm0
mulss  %xmm2,%xmm1
addss  %xmm0,%xmm1
mov    -0x8(%rbp),%rax
movss  0x8(%rax),%xmm0
mov    -0x8(%rbp),%rax
movss  0x8(%rax),%xmm2
mulss  %xmm2,%xmm0
addss  %xmm1,%xmm0
call   1030 <sqrt@plt>
cvtsi2ss %rax,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
xorps  %xmm1,%xmm1
ucomisd %xmm1,%xmm0
jne    1190 <normalizef+0x80>
jp     1190 <normalizef+0x80>
jmp    11d9 <normalizef+0xc9>
movss  0xe68(%rip),%xmm0
divss  -0xc(%rbp),%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
mov    -0x8(%rbp),%rax
mulss  (%rax),%xmm0
movss  %xmm0,(%rax)
movss  -0xc(%rbp),%xmm0
mov    -0x8(%rbp),%rax
mulss  0x4(%rax),%xmm0
movss  %xmm0,0x4(%rax)
movss  -0xc(%rbp),%xmm0
mov    -0x8(%rbp),%rax
mulss  0x8(%rax),%xmm0
movss  %xmm0,0x8(%rax)
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<normalizef>:
push   %rbx
mov    %rdi,%rbx
movss  (%rdi),%xmm1
movss  0x4(%rdi),%xmm0
mulss  %xmm0,%xmm0
mulss  %xmm1,%xmm1
addss  %xmm0,%xmm1
movss  0x8(%rdi),%xmm0
mulss  %xmm0,%xmm0
addss  %xmm1,%xmm0
call   1030 <sqrt@plt>
test   %rax,%rax
je     1178 <normalizef+0x68>
xorps  %xmm0,%xmm0
cvtsi2ss %rax,%xmm0
movss  0xeb0(%rip),%xmm1
divss  %xmm0,%xmm1
movss  (%rbx),%xmm0
mulss  %xmm1,%xmm0
movss  %xmm0,(%rbx)
movss  0x4(%rbx),%xmm0
mulss  %xmm1,%xmm0
movss  %xmm0,0x4(%rbx)
mulss  0x8(%rbx),%xmm1
movss  %xmm1,0x8(%rbx)
pop    %rbx
ret

LLVM IR (-O0):
define void @normalizef(float* %0) {
%2 = alloca float*
%3 = alloca float
store float* %0, float** %2
%4 = load float*, float** %2
%5 = getelementptr inbounds float, float* %4, i64 0
%6 = load float, float* %5
%7 = load float*, float** %2
%8 = getelementptr inbounds float, float* %7, i64 0
%9 = load float, float* %8
%10 = load float*, float** %2
%11 = getelementptr inbounds float, float* %10, i64 1
%12 = load float, float* %11
%13 = load float*, float** %2
%14 = getelementptr inbounds float, float* %13, i64 1
%15 = load float, float* %14
%16 = fmul float %12, %15
%17 = call float @llvm.fmuladd.f32(float %6, float %9, float %16)
%18 = load float*, float** %2
%19 = getelementptr inbounds float, float* %18, i64 2
%20 = load float, float* %19
%21 = load float*, float** %2
%22 = getelementptr inbounds float, float* %21, i64 2
%23 = load float, float* %22
%24 = call float @llvm.fmuladd.f32(float %20, float %23, float %17)
%25 = call i64 @sqrt(float %24)
%26 = sitofp i64 %25 to float
store float %26, float* %3
%27 = load float, float* %3
%28 = fpext float %27 to double
%29 = fcmp oeq double %28, 0.000000e+00
br i1 %29, label %30, label %31
30: ; preds = %1
br label %49
31: ; preds = %1
%32 = load float, float* %3
%33 = fdiv float 1.000000e+00, %32
store float %33, float* %3
%34 = load float, float* %3
%35 = load float*, float** %2
%36 = getelementptr inbounds float, float* %35, i64 0
%37 = load float, float* %36
%38 = fmul float %37, %34
store float %38, float* %36
%39 = load float, float* %3
%40 = load float*, float** %2
%41 = getelementptr inbounds float, float* %40, i64 1
%42 = load float, float* %41
%43 = fmul float %42, %39
store float %43, float* %41
%44 = load float, float* %3
%45 = load float*, float** %2
%46 = getelementptr inbounds float, float* %45, i64 2
%47 = load float, float* %46
%48 = fmul float %47, %44
store float %48, float* %46
br label %49
49: ; preds = %31, %30
ret void
}

LLVM IR (-O2):
define void @normalizef(float* nocapture %0) {
%2 = load float, float* %0
%3 = getelementptr inbounds float, float* %0, i64 1
%4 = load float, float* %3
%5 = fmul float %4, %4
%6 = tail call float @llvm.fmuladd.f32(float %2, float %2, float %5)
%7 = getelementptr inbounds float, float* %0, i64 2
%8 = load float, float* %7
%9 = tail call float @llvm.fmuladd.f32(float %8, float %8, float %6)
%10 = tail call i64 @sqrt(float %9)
%11 = icmp eq i64 %10, 0
br i1 %11, label %21, label %12
12: ; preds = %1
%13 = sitofp i64 %10 to float
%14 = fdiv float 1.000000e+00, %13
%15 = load float, float* %0
%16 = fmul float %14, %15
store float %16, float* %0
%17 = load float, float* %3
%18 = fmul float %14, %17
store float %18, float* %3
%19 = load float, float* %7
%20 = fmul float %14, %19
store float %20, float* %7
br label %21
21: ; preds = %1, %12
ret void
}