user: 下面的汇编指令对应的C源代码是什么：

```asm
<kmeans_it>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %esi,-0x5c(%rbp)
  mov    %edx,-0x60(%rbp)
  mov    %ecx,-0x64(%rbp)
  mov    %r8d,-0x68(%rbp)
  mov    %r9,-0x70(%rbp)
  movl   $0x0,-0x4c(%rbp)
  movl   $0x0,-0x48(%rbp)
  movl   $0x0,-0x44(%rbp)
  movl   $0x0,-0x40(%rbp)
  movl   $0xffffffff,-0x3c(%rbp)
  movl   $0xffffffff,-0x2c(%rbp)
  movl   $0x0,-0x38(%rbp)
  mov    -0x64(%rbp),%eax
  cltq
  shl    $0x2,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x68(%rbp),%eax
  cltq
  mov    $0x4,%esi
  mov    %rax,%rdi
  call   <calloc@plt>
  mov    %rax,-0x20(%rbp)
  movl   $0x0,-0x34(%rbp)
  mov    -0x68(%rbp),%eax
  cltq
  shl    $0x3,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  movl   $0x0,-0x4c(%rbp)
  jmp    L7
L93:
  mov    -0x64(%rbp),%eax
  cltq
  mov    -0x4c(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,8),%rcx
  mov    -0x18(%rbp),%rdx
  lea    (%rcx,%rdx,1),%rbx
  mov    $0x4,%esi
  mov    %rax,%rdi
  call   <calloc@plt>
  mov    %rax,(%rbx)
  addl   $0x1,-0x4c(%rbp)
L7:
  mov    -0x4c(%rbp),%eax
  cmp    -0x68(%rbp),%eax
  jl     L93
  movl   $0x0,-0x4c(%rbp)
  jmp    L152
L15:
  movl   $0x0,-0x48(%rbp)
  jmp    L121
L138:
  movl   $0x0,-0x30(%rbp)
  movl   $0xffffffff,-0x3c(%rbp)
  movl   $0x0,-0x30(%rbp)
  jmp    L38
L177:
  mov    -0x60(%rbp),%eax
  imul   -0x4c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x48(%rbp),%eax
  add    %eax,%edx
  mov    -0x5c(%rbp),%eax
  imul   -0x60(%rbp),%eax
  imul   -0x30(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  mov    -0x30(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rax),%eax
  mov    %eax,(%rdx)
  addl   $0x1,-0x30(%rbp)
L38:
  mov    -0x30(%rbp),%eax
  cmp    -0x64(%rbp),%eax
  jl     L177
  movl   $0x0,-0x40(%rbp)
  jmp    L33
L188:
  mov    -0x40(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rcx
  mov    -0x64(%rbp),%edx
  mov    -0x28(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <sqd_distance@plt>
  mov    %eax,-0x2c(%rbp)
  cmpl   $0x0,-0x3c(%rbp)
  js     L81
  mov    -0x2c(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jge    L108
L81:
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x3c(%rbp)
  mov    -0x40(%rbp),%eax
  mov    %eax,-0x38(%rbp)
L108:
  addl   $0x1,-0x40(%rbp)
L33:
  mov    -0x40(%rbp),%eax
  cmp    -0x68(%rbp),%eax
  jl     L188
  movl   $0x0,-0x30(%rbp)
  jmp    L139
L51:
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x30(%rbp),%eax
  cltq
  shl    $0x2,%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x60(%rbp),%eax
  imul   -0x4c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x48(%rbp),%eax
  add    %eax,%edx
  mov    -0x5c(%rbp),%eax
  imul   -0x60(%rbp),%eax
  imul   -0x30(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    0x18(%rbp),%rax
  add    %rax,%rdx
  mov    (%rcx),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%ecx
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rsi
  mov    -0x18(%rbp),%rax
  add    %rsi,%rax
  mov    (%rax),%rsi
  mov    -0x30(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rsi,%rax
  movss  (%rax),%xmm0
  pxor   %xmm1,%xmm1
  cvtss2sd %xmm0,%xmm1
  movq   %xmm1,%rax
  mov    %ecx,%esi
  mov    %edx,%edi
  movq   %rax,%xmm0
  mov    $0x1,%eax
  call   <mean_it@plt>
  mov    %eax,%edx
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%rcx
  mov    -0x30(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rcx,%rax
  pxor   %xmm0,%xmm0
  cvtsi2ss %edx,%xmm0
  movss  %xmm0,(%rax)
  addl   $0x1,-0x30(%rbp)
L139:
  mov    -0x30(%rbp),%eax
  cmp    -0x64(%rbp),%eax
  jl     L51
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  add    $0x1,%edx
  mov    %edx,(%rax)
  addl   $0x1,-0x48(%rbp)
L121:
  mov    -0x48(%rbp),%eax
  cmp    -0x60(%rbp),%eax
  jl     L138
  addl   $0x1,-0x4c(%rbp)
L152:
  mov    -0x4c(%rbp),%eax
  cmp    -0x5c(%rbp),%eax
  jl     L15
  movl   $0x0,-0x4c(%rbp)
  jmp    L25
L40:
  movl   $0x0,-0x44(%rbp)
  jmp    L37
L125:
  mov    -0x4c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x44(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x4c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%rcx
  mov    -0x44(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rcx,%rax
  movss  (%rax),%xmm0
  cvttss2si %xmm0,%eax
  cmp    %eax,%edx
  je     L30
  mov    -0x4c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x44(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mov    -0x4c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x44(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rax,%rdx
  cvttss2si %xmm0,%eax
  mov    %eax,(%rdx)
  movl   $0x1,-0x34(%rbp)
L30:
  addl   $0x1,-0x44(%rbp)
L37:
  mov    -0x44(%rbp),%eax
  cmp    -0x64(%rbp),%eax
  jl     L125
  mov    -0x4c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <free@plt>
  addl   $0x1,-0x4c(%rbp)
L25:
  mov    -0x4c(%rbp),%eax
  cmp    -0x68(%rbp),%eax
  jl     L40
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x34(%rbp),%eax
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
int kmeans_it(int *image, int width, int height, int depth, int k, int **clusters, int mean_colors, int *ret) {
  int i = 0, j = 0, d = 0, ki = 0;
  int min_dist = -1, temp_dist = -1;
  int cluster = 0;
  int *pixel_it = malloc(depth * sizeof(int));
  int *pix_count = (int *)calloc(k, sizeof(int));
  int changed = 0;
  float **new_clusters = (float **)malloc(k * sizeof(float *));
  for (i = 0; i < k; i++) {
    new_clusters[i] = calloc(depth, sizeof(float));
  }
  for (i = 0; i < width; i++) {
    for (j = 0; j < height; j++) {
      int l = 0;
      min_dist = -1;
      for (l = 0; l < depth; l++) {
        pixel_it[l] = image[((height) * (i) + (j) + (width) * (height) * (l))];
      }
      for (ki = 0; ki < k; ki++) {
        temp_dist = sqd_distance(pixel_it, clusters[ki], depth);
        if (min_dist < 0 || temp_dist < min_dist) {
          min_dist = temp_dist;
          cluster = ki;
        }
      }
      for (l = 0; l < depth; l++) {
        ret[((height) * (i) + (j) + (width) * (height) * (l))] = (mean_colors) ? clusters[cluster][l] : clusters[cluster][l];
        new_clusters[cluster][l] = mean_it(new_clusters[cluster][l], pix_count[cluster], pixel_it[l]);
      }
      pix_count[cluster]++;
    }
  }
  for (i = 0; i < k; i++) {
    for (d = 0; d < depth; d++) {
      if (clusters[i][d] != (int)new_clusters[i][d]) {
        clusters[i][d] = (int)(new_clusters[i][d]);
        changed = 1;
      }
    }
    free(new_clusters[i]);
  }
  free(new_clusters);
  free(pixel_it);
  return changed;
}
```