user: 下面的汇编指令对应的C源代码是什么:

```asm
<lu>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%r13
  mov    %esi,0xc(%rsp)
  mov    %rdx,%rbp
  mov    (%rdi),%rax
  pxor   %xmm0,%xmm0
  ucomisd (%rax),%xmm0
  jp     L135
  je     L228
L135:
  mov    0x0(%rbp),%rax
  mov    0x0(%r13),%rdx
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    0xc(%rsp),%eax
  cmp    $0x1,%eax
  jle    L58
  mov    %eax,%edi
  shl    $0x3,%rdi
  mov    $0x8,%eax
L124:
  mov    0x0(%r13),%rdx
  movsd  (%rdx,%rax,1),%xmm0
  mov    0x0(%rbp),%rdx
  movsd  %xmm0,(%rdx,%rax,1)
  mov    0x0(%rbp,%rax,1),%rdx
  mov    0x0(%r13,%rax,1),%rsi
  mov    0x0(%rbp),%rcx
  movsd  (%rsi),%xmm0
  divsd  (%rcx),%xmm0
  movsd  %xmm0,(%rdx)
  add    $0x8,%rax
  cmp    %rdi,%rax
  jne    L124
  cmpl   $0x2,0xc(%rsp)
  jle    L212
L152:
  lea    0x10(%rbp),%r15
  mov    $0x8,%ebx
  mov    $0x2,%r14d
  movl   $0x2,0x8(%rsp)
  jmp    L177
L228:
  lea    D6(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L135
L58:
  cmpl   $0x2,0xc(%rsp)
  jg     L152
  mov    0xc(%rsp),%esi
  movslq %esi,%rax
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdi
  lea    0x0(%rbp,%rdi,1),%r9
  mov    -0x8(%r13,%rax,1),%rdx
  movsd  -0x8(%rdx,%rax,1),%xmm0
  mov    (%r9),%rdx
  movsd  %xmm0,-0x8(%rdx,%rax,1)
  cmp    $0x2,%esi
  jne    L199
  jmp    L214
L215:
  addl   $0x1,0x8(%rsp)
  mov    0x8(%rsp),%edi
  mov    0xc(%rsp),%ecx
  cmp    %edi,%ecx
  jl     L131
  lea    0x8(%rbx),%rsi
  mov    %ecx,%eax
  sub    %edi,%eax
  lea    0x1(%r14,%rax,1),%r9
  shl    $0x3,%r9
  mov    %r15,%r8
L27:
  mov    0x0(%r13,%rbx,1),%rax
  movsd  (%rax,%rsi,1),%xmm0
  mov    -0x8(%r12),%rax
  movsd  %xmm0,(%rax,%rsi,1)
  mov    %r8,%rdi
  mov    0x0(%r13,%rsi,1),%rax
  movsd  (%rax,%rbx,1),%xmm0
  mov    (%r8),%rax
  movsd  %xmm0,(%rax,%rbx,1)
  cmp    $0x1,%r14d
  jle    L79
  mov    $0x0,%eax
L55:
  mov    -0x8(%r12),%rcx
  lea    (%rcx,%rsi,1),%rdx
  mov    0x0(%rbp,%rax,1),%r10
  movsd  (%r10,%rsi,1),%xmm1
  mulsd  (%rcx,%rax,1),%xmm1
  movsd  (%rdx),%xmm0
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rdx)
  mov    (%rdi),%rcx
  lea    (%rcx,%rbx,1),%rdx
  mov    0x0(%rbp,%rax,1),%r10
  movsd  (%r10,%rbx,1),%xmm1
  mulsd  (%rcx,%rax,1),%xmm1
  movsd  (%rdx),%xmm0
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rdx)
  add    $0x8,%rax
  cmp    %rbx,%rax
  jne    L55
L79:
  mov    %rbx,%rax
  add    (%rdi),%rax
  mov    -0x8(%r12),%rdx
  movsd  (%rax),%xmm0
  divsd  (%rdx,%rbx,1),%xmm0
  movsd  %xmm0,(%rax)
  add    $0x8,%rsi
  add    $0x8,%r8
  cmp    %r9,%rsi
  jne    L27
  add    $0x1,%r14
  add    $0x8,%rbx
  add    $0x8,%r15
  mov    0x8(%rsp),%edi
  cmp    %edi,0xc(%rsp)
  je     L196
L177:
  mov    %r15,%r12
  mov    0x0(%r13,%rbx,1),%rax
  movsd  (%rax,%rbx,1),%xmm0
  mov    -0x8(%r15),%rax
  movsd  %xmm0,(%rax,%rbx,1)
  cmpl   $0x1,0x8(%rsp)
  jle    L56
  mov    $0x0,%eax
L185:
  mov    -0x8(%r12),%rcx
  lea    (%rcx,%rbx,1),%rdx
  mov    0x0(%rbp,%rax,1),%rsi
  movsd  (%rsi,%rbx,1),%xmm1
  mulsd  (%rcx,%rax,1),%xmm1
  movsd  (%rdx),%xmm0
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rdx)
  add    $0x8,%rax
  cmp    %rbx,%rax
  jne    L185
L56:
  mov    -0x8(%r12),%rax
  pxor   %xmm2,%xmm2
  ucomisd (%rax,%rbx,1),%xmm2
  jp     L215
  jne    L215
  lea    D6(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L215
L196:
  movslq 0x8(%rsp),%rax
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdi
  lea    0x0(%rbp,%rdi,1),%r9
  mov    -0x8(%r13,%rax,1),%rdx
  movsd  -0x8(%rdx,%rax,1),%xmm0
  mov    (%r9),%rdx
  movsd  %xmm0,-0x8(%rdx,%rax,1)
L214:
  mov    $0x0,%eax
  mov    $0x1,%edx
  mov    0xc(%rsp),%r10d
L225:
  mov    (%r9),%rsi
  lea    (%rsi,%rdi,1),%rcx
  mov    0x0(%rbp,%rax,1),%r8
  movsd  (%r8,%rdi,1),%xmm1
  mulsd  (%rsi,%rax,1),%xmm1
  movsd  (%rcx),%xmm0
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rcx)
  add    $0x1,%edx
  add    $0x8,%rax
  cmp    %edx,%r10d
  jg     L225
L199:
  mov    %rbp,%rax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L131:
  add    $0x1,%r14
  add    $0x8,%rbx
  add    $0x8,%r15
  jmp    L177
L212:
  movslq 0xc(%rsp),%rax
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdi
  lea    0x0(%rbp,%rdi,1),%r9
  mov    -0x8(%r13,%rax,1),%rdx
  movsd  -0x8(%rdx,%rax,1),%xmm0
  mov    (%r9),%rdx
  movsd  %xmm0,-0x8(%rdx,%rax,1)
  jmp    L214
```

tool_calls: name: disassemble_data
arguments: tag: D6
type: string

tool: D6: 
	Can't do LU


assistant: ```c
double **lu(double **a, int n, double **lum) {
  int i, j, k;
  if (a[1 - 1][1 - 1] == 0.0) {
    printf("\n\tCan't do LU\n");
    exit(1);
  }
  lum[1 - 1][1 - 1] = a[1 - 1][1 - 1];
  for (j = 2; j <= n; j++) {
    lum[1 - 1][j - 1] = a[1 - 1][j - 1];
    lum[j - 1][1 - 1] = a[j - 1][1 - 1] / lum[1 - 1][1 - 1];
  }
  for (i = 2; i <= n - 1; i++) {
    lum[i - 1][i - 1] = a[i - 1][i - 1];
    for (k = 1; k <= i - 1; k++)
      lum[i - 1][i - 1] -= lum[i - 1][k - 1] * lum[k - 1][i - 1];
    if (lum[i - 1][i - 1] == 0.0) {
      printf("\n\tCan't do LU\n");
      exit(1);
    }
    for (j = i + 1; j <= n; j++) {
      lum[i - 1][j - 1] = a[i - 1][j - 1];
      lum[j - 1][i - 1] = a[j - 1][i - 1];
      for (k = 1; k <= i - 1; k++) {
        lum[i - 1][j - 1] -= lum[i - 1][k - 1] * lum[k - 1][j - 1];
        lum[j - 1][i - 1] -= lum[j - 1][k - 1] * lum[k - 1][i - 1];
      }
      lum[j - 1][i - 1] /= lum[i - 1][i - 1];
    }
  }
  lum[n - 1][n - 1] = a[n - 1][n - 1];
  for (k = 1; k <= n - 1; k++)
    lum[n - 1][n - 1] -= lum[n - 1][k - 1] * lum[k - 1][n - 1];
  return lum;
}
```