#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__ pow(double, double);
double squared_dist(double *A, double *B, int vlen) {
  int i;
  double diff, sum;
  sum = 0;
  for (i = 0; i < vlen; i++) {
    diff = A[i] - B[i];
    sum += pow(diff, 2.0);
  }
  return sum;
}


x86 assembly (clang, -O0):
<squared_dist>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %edx,-0x14(%rbp)
xorps  %xmm0,%xmm0
movsd  %xmm0,-0x28(%rbp)
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    118c <squared_dist+0x7c>
mov    -0x8(%rbp),%rax
movslq -0x18(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
mov    -0x10(%rbp),%rax
movslq -0x18(%rbp),%rcx
subsd  (%rax,%rcx,8),%xmm0
movsd  %xmm0,-0x20(%rbp)
movsd  -0x20(%rbp),%xmm0
movsd  0xe96(%rip),%xmm1
call   1030 <pow@plt>
cvtsi2sd %rax,%xmm0
addsd  -0x28(%rbp),%xmm0
movsd  %xmm0,-0x28(%rbp)
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    1132 <squared_dist+0x22>
movsd  -0x28(%rbp),%xmm0
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<squared_dist>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x10,%rsp
test   %edx,%edx
jle    1137 <squared_dist+0x27>
mov    %rsi,%r14
mov    %rdi,%r12
mov    %edx,%r15d
cmp    $0x1,%edx
jne    1140 <squared_dist+0x30>
xorpd  %xmm0,%xmm0
xor    %ebx,%ebx
jmp    11b5 <squared_dist+0xa5>
xorpd  %xmm0,%xmm0
jmp    11f8 <squared_dist+0xe8>
mov    %r15d,%r13d
and    $0xfffffffe,%r13d
xorpd  %xmm0,%xmm0
xor    %ebx,%ebx
nopl   (%rax)
movsd  %xmm0,0x8(%rsp)
movsd  (%r12,%rbx,8),%xmm0
subsd  (%r14,%rbx,8),%xmm0
movsd  0xe96(%rip),%xmm1
call   1030 <pow@plt>
xorps  %xmm0,%xmm0
cvtsi2sd %rax,%xmm0
addsd  0x8(%rsp),%xmm0
movsd  %xmm0,0x8(%rsp)
movsd  0x8(%r12,%rbx,8),%xmm0
subsd  0x8(%r14,%rbx,8),%xmm0
movsd  0xe67(%rip),%xmm1
call   1030 <pow@plt>
xorps  %xmm0,%xmm0
cvtsi2sd %rax,%xmm0
addsd  0x8(%rsp),%xmm0
add    $0x2,%rbx
cmp    %rbx,%r13
jne    1150 <squared_dist+0x40>
test   $0x1,%r15b
je     11f8 <squared_dist+0xe8>
movsd  %xmm0,0x8(%rsp)
movsd  (%r12,%rbx,8),%xmm0
subsd  (%r14,%rbx,8),%xmm0
movsd  0xe2b(%rip),%xmm1
call   1030 <pow@plt>
xorps  %xmm0,%xmm0
cvtsi2sd %rax,%xmm0
movsd  0x8(%rsp),%xmm1
addsd  %xmm0,%xmm1
movsd  %xmm1,0x8(%rsp)
movsd  0x8(%rsp),%xmm0
add    $0x10,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
define double @squared_dist(double* %0, double* %1, i32 %2) {
%4 = alloca double*
%5 = alloca double*
%6 = alloca i32
%7 = alloca i32
%8 = alloca double
%9 = alloca double
store double* %0, double** %4
store double* %1, double** %5
store i32 %2, i32* %6
store double 0.000000e+00, double* %9
store i32 0, i32* %7
br label %10
10: ; preds = %31, %3
%11 = load i32, i32* %7
%12 = load i32, i32* %6
%13 = icmp slt i32 %11, %12
br i1 %13, label %14, label %34
14: ; preds = %10
%15 = load double*, double** %4
%16 = load i32, i32* %7
%17 = sext i32 %16 to i64
%18 = getelementptr inbounds double, double* %15, i64 %17
%19 = load double, double* %18
%20 = load double*, double** %5
%21 = load i32, i32* %7
%22 = sext i32 %21 to i64
%23 = getelementptr inbounds double, double* %20, i64 %22
%24 = load double, double* %23
%25 = fsub double %19, %24
store double %25, double* %8
%26 = load double, double* %8
%27 = call i64 @pow(double %26, double 2.000000e+00)
%28 = sitofp i64 %27 to double
%29 = load double, double* %9
%30 = fadd double %29, %28
store double %30, double* %9
br label %31
31: ; preds = %14
%32 = load i32, i32* %7
%33 = add nsw i32 %32, 1
store i32 %33, i32* %7
br label %10
34: ; preds = %10
%35 = load double, double* %9
ret double %35
}

LLVM IR (-O2):
define double @squared_dist(double* nocapture %0, double* nocapture %1, i32 %2) {
%4 = icmp sgt i32 %2, 0
br i1 %4, label %5, label %49
5: ; preds = %3
%6 = zext i32 %2 to i64
%7 = and i64 %6, 1
%8 = icmp eq i32 %2, 1
br i1 %8, label %35, label %9
9: ; preds = %5
%10 = and i64 %6, 4294967294
br label %11
11: ; preds = %11, %9
%12 = phi i64 [ 0, %9 ], [ %32, %11 ]
%13 = phi double [ 0.000000e+00, %9 ], [ %31, %11 ]
%14 = phi i64 [ 0, %9 ], [ %33, %11 ]
%15 = getelementptr inbounds double, double* %0, i64 %12
%16 = load double, double* %15
%17 = getelementptr inbounds double, double* %1, i64 %12
%18 = load double, double* %17
%19 = fsub double %16, %18
%20 = tail call i64 @pow(double %19, double 2.000000e+00)
%21 = sitofp i64 %20 to double
%22 = fadd double %13, %21
%23 = or i64 %12, 1
%24 = getelementptr inbounds double, double* %0, i64 %23
%25 = load double, double* %24
%26 = getelementptr inbounds double, double* %1, i64 %23
%27 = load double, double* %26
%28 = fsub double %25, %27
%29 = tail call i64 @pow(double %28, double 2.000000e+00)
%30 = sitofp i64 %29 to double
%31 = fadd double %22, %30
%32 = add nuw nsw i64 %12, 2
%33 = add i64 %14, 2
%34 = icmp eq i64 %33, %10
br i1 %34, label %35, label %11
35: ; preds = %11, %5
%36 = phi double [ undef, %5 ], [ %31, %11 ]
%37 = phi i64 [ 0, %5 ], [ %32, %11 ]
%38 = phi double [ 0.000000e+00, %5 ], [ %31, %11 ]
%39 = icmp eq i64 %7, 0
br i1 %39, label %49, label %40
40: ; preds = %35
%41 = getelementptr inbounds double, double* %0, i64 %37
%42 = load double, double* %41
%43 = getelementptr inbounds double, double* %1, i64 %37
%44 = load double, double* %43
%45 = fsub double %42, %44
%46 = tail call i64 @pow(double %45, double 2.000000e+00)
%47 = sitofp i64 %46 to double
%48 = fadd double %38, %47
br label %49
49: ; preds = %40, %35, %3
%50 = phi double [ 0.000000e+00, %3 ], [ %36, %35 ], [ %48, %40 ]
ret double %50
}