user: 请从给定的汇编指令推导出C源代码:

```asm
<sppdist_sqeuclidean>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %esi,-0x4c(%rbp)
  mov    %edx,-0x50(%rbp)
  movsd  %xmm0,-0x58(%rbp)
  mov    %ecx,-0x5c(%rbp)
  mov    %r8,-0x68(%rbp)
  mov    %r9,-0x70(%rbp)
  mov    -0x4c(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x70(%rbp),%rax
  mov    (%rax),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  mov    (%rax),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x20(%rbp)
  movl   $0x0,-0x30(%rbp)
  movl   $0x0,-0x34(%rbp)
  jmp    L33
L15:
  cmpl   $0x0,-0x5c(%rbp)
  je     L166
  cmpl   $0x1,-0x5c(%rbp)
  je     L166
  cmpl   $0x2,-0x5c(%rbp)
  jne    L11
L166:
  mov    -0x30(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x34(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  add    %eax,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x34(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  pxor   %xmm0,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x30(%rbp)
  mov    -0x30(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jne    L11
  shll   -0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x20(%rbp)
L11:
  mov    -0x34(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x38(%rbp)
  jmp    L8
L46:
  mov    -0x38(%rbp),%eax
  imul   -0x50(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x34(%rbp),%eax
  imul   -0x50(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x50(%rbp),%edx
  mov    -0x10(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <sqeuclidean_distance@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  movsd  -0x58(%rbp),%xmm0
  comisd -0x8(%rbp),%xmm0
  jb     L7
  cmpl   $0x1,-0x5c(%rbp)
  je     L164
  cmpl   $0x3,-0x5c(%rbp)
  je     L164
  cmpl   $0x0,-0x5c(%rbp)
  jne    L134
L164:
  mov    -0x30(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x38(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  add    %eax,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x34(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x30(%rbp)
  mov    -0x30(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jne    L134
  shll   -0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x20(%rbp)
L134:
  cmpl   $0x2,-0x5c(%rbp)
  je     L6
  cmpl   $0x4,-0x5c(%rbp)
  je     L6
  cmpl   $0x0,-0x5c(%rbp)
  jne    L7
L6:
  mov    -0x30(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x34(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  add    %eax,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x38(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x30(%rbp)
  mov    -0x30(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jne    L7
  shll   -0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x20(%rbp)
L7:
  addl   $0x1,-0x38(%rbp)
L8:
  mov    -0x38(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L46
  addl   $0x1,-0x34(%rbp)
L33:
  mov    -0x34(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L15
  mov    -0x30(%rbp),%eax
  mov    %eax,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  add    %eax,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x20(%rbp)
  mov    -0x70(%rbp),%rax
  mov    -0x28(%rbp),%rdx
  mov    %rdx,(%rax)
  mov    -0x68(%rbp),%rax
  mov    -0x20(%rbp),%rdx
  mov    %rdx,(%rax)
  mov    0x10(%rbp),%rax
  mov    -0x2c(%rbp),%edx
  mov    %edx,(%rax)
  nop
  leave
  ret
```

assistant: ```c
void sppdist_sqeuclidean(const double *X, int m, int n, double threshold, int form, double **out_Dx, int **out_Dij, int *out_nzmax) {
  int i, j;
  int nz, nzmax;
  double d;
  const double *x1, *x2;
  int *Dij;
  double *Dx;
  nzmax = 2 * m;
  Dij = realloc(*out_Dij, 2 * nzmax * sizeof(int));
  Dx = realloc(*out_Dx, nzmax * sizeof(double));
  nz = 0;
  for (j = 0; j < m; j++) {
    if ((((form) == 0) || ((form) == 1) || ((form) == 2))) {
      Dij[2 * nz] = j;
      Dij[2 * nz + 1] = j;
      Dx[nz] = 0.0;
      nz++;
      {
        if (nz == nzmax) {
          nzmax *= 2;
          Dij = realloc(Dij, 2 * nzmax * sizeof(int));
          Dx = realloc(Dx, nzmax * sizeof(double));
        }
      };
    }
    for (i = j + 1; i < m; i++) {
      x1 = X + i * n;
      x2 = X + j * n;
      d = sqeuclidean_distance(x1, x2, n);
      if (d <= threshold) {
        if ((((form) == 1) || ((form) == 3) || ((form) == 0))) {
          Dij[2 * nz] = i;
          Dij[2 * nz + 1] = j;
          Dx[nz] = d;
          nz++;
          {
            if (nz == nzmax) {
              nzmax *= 2;
              Dij = realloc(Dij, 2 * nzmax * sizeof(int));
              Dx = realloc(Dx, nzmax * sizeof(double));
            }
          };
        }
        if ((((form) == 2) || ((form) == 4) || ((form) == 0))) {
          Dij[2 * nz] = j;
          Dij[2 * nz + 1] = i;
          Dx[nz] = d;
          nz++;
          {
            if (nz == nzmax) {
              nzmax *= 2;
              Dij = realloc(Dij, 2 * nzmax * sizeof(int));
              Dx = realloc(Dx, nzmax * sizeof(double));
            }
          };
        }
      }
    }
  }
  nzmax = nz;
  Dij = realloc(Dij, 2 * nzmax * sizeof(int));
  Dx = realloc(Dx, nzmax * sizeof(double));
  *out_Dij = Dij;
  *out_Dx = Dx;
  *out_nzmax = nzmax;
  return;
}
```