user: What would the C source look like for the assembly code provided here?

```asm
<mypotential>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  movapd %xmm1,%xmm3
  mulsd  %xmm1,%xmm3
  mulsd  %xmm1,%xmm3
  mulsd  %xmm3,%xmm3
  mulsd  %xmm3,%xmm3
  movapd %xmm3,%xmm4
  mulsd  %xmm3,%xmm4
  test   %esi,%esi
  jle    L54
  mov    %esi,%r9d
  mov    %rdx,%rcx
  movapd %xmm0,%xmm8
  pxor   %xmm2,%xmm2
  mov    $0x0,%r10d
  movsd  D17(%rip),%xmm11
  movsd  D39(%rip),%xmm10
  movsd  D23(%rip),%xmm9
  movsd  D26(%rip),%xmm7
  jmp    L39
L78:
  mov    %rbx,%rdi
  mov    %r11,%rcx
L39:
  add    $0x3,%r10d
  cmp    %r10d,%r9d
  jle    L24
  lea    0x18(%rcx),%r11
  lea    0x18(%rdi),%rbx
  movapd %xmm8,%xmm1
  mulsd  %xmm11,%xmm1
  movapd %xmm4,%xmm6
  mulsd  %xmm10,%xmm6
  movapd %xmm3,%xmm5
  mulsd  %xmm9,%xmm5
  mov    %rbx,%rsi
  mov    %r11,%rdx
  mov    %r10d,%r8d
  jmp    L44
L82:
  add    $0x3,%r8d
  add    $0x18,%rdx
  add    $0x18,%rsi
  cmp    %r8d,%r9d
  jle    L78
L44:
  mov    $0x0,%eax
  pxor   %xmm13,%xmm13
L58:
  movsd  (%rdi,%rax,1),%xmm0
  subsd  (%rsi,%rax,1),%xmm0
  movsd  %xmm0,(%rsp,%rax,1)
  mulsd  %xmm0,%xmm0
  addsd  %xmm0,%xmm13
  add    $0x8,%rax
  cmp    $0x18,%rax
  jne    L58
  movapd %xmm7,%xmm12
  divsd  %xmm13,%xmm12
  movapd %xmm12,%xmm13
  mulsd  %xmm12,%xmm13
  mulsd  %xmm12,%xmm13
  mulsd  %xmm13,%xmm13
  movapd %xmm13,%xmm0
  mulsd  %xmm13,%xmm0
  movapd %xmm4,%xmm14
  mulsd  %xmm0,%xmm14
  movapd %xmm3,%xmm15
  mulsd  %xmm13,%xmm15
  subsd  %xmm15,%xmm14
  mulsd  %xmm1,%xmm14
  addsd  %xmm14,%xmm2
  mulsd  %xmm6,%xmm0
  mulsd  %xmm5,%xmm13
  addsd  %xmm13,%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  %xmm12,%xmm0
  mov    $0x0,%eax
  mov    %rsp,%rbp
L27:
  movapd %xmm0,%xmm13
  mulsd  (%rax,%rbp,1),%xmm13
  movapd %xmm13,%xmm12
  addsd  (%rcx,%rax,1),%xmm12
  movsd  %xmm12,(%rcx,%rax,1)
  movsd  (%rdx,%rax,1),%xmm12
  subsd  %xmm13,%xmm12
  movsd  %xmm12,(%rdx,%rax,1)
  add    $0x8,%rax
  cmp    $0x18,%rax
  jne    L27
  jmp    L82
L54:
  pxor   %xmm2,%xmm2
L24:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L61
  movapd %xmm2,%xmm0
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  ret
L61:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D17
type: f64
name: disassemble_data
arguments: data_tag: D39
type: f32[2]
name: disassemble_data
arguments: data_tag: D23
type: f64
name: disassemble_data
arguments: data_tag: D26
type: f64

tool: D17: 4

tool: {"D39": [0.0,-2.875]}

tool: D23: 12

tool: D26: 1

assistant: ```c
double mypotential(double *x, int N, double *grad, double eps, double sig) {
  int i, j, k;
  double energy = 0;
  double sig12, sig24;
  double g, r, r2, ir2, ir12, ir24;
  double dr[3];
  sig12 = sig * sig * sig;
  sig12 *= sig12;
  sig12 *= sig12;
  sig24 = sig12 * sig12;
  for (i = 0; i < N; i += 3) {
    for (j = i + 3; j < N; j += 3) {
      r2 = 0;
      for (k = 0; k < 3; ++k) {
        dr[k] = x[i + k] - x[j + k];
        r2 += dr[k] * dr[k];
      }
      ir2 = 1. / r2;
      ir12 = ir2 * ir2 * ir2;
      ir12 *= ir12;
      ir24 = ir12 * ir12;
      energy += 4. * eps * (sig24 * ir24 - sig12 * ir12);
      g = 4. * eps * (-24. * sig24 * ir24 + 12. * sig12 * ir12);
      for (k = 0; k < 3; ++k) {
        grad[i + k] += g * ir2 * dr[k];
        grad[j + k] -= g * ir2 * dr[k];
      }
    }
  }
  return energy;
}
```