user: 这段汇编代码用C语言表示是什么样的?

```asm
<test_1>:
  endbr64
  push   %r15
  lea    D19(%rip),%rsi
  push   %r14
  push   %r13
  push   %r12
  mov    %edi,%r12d
  lea    D34(%rip),%rdi
  push   %rbp
  lea    0x0(,%r12,8),%r15d
  push   %rbx
  sub    $0x18,%rsp
  call   <fopen@plt>
  mov    %r15d,%edi
  mov    %rax,%rbx
  call   <malloc@plt>
  lea    -0x1(%r12),%r9d
  lea    0x0(,%r9,8),%ebp
  mov    %r9d,0xc(%rsp)
  mov    %rax,%r13
  mov    %ebp,%edi
  call   <malloc@plt>
  mov    %ebp,%edi
  mov    %rax,(%rsp)
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,%rbp
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,%r14
  call   <malloc@plt>
  mov    %rbx,%rcx
  mov    %r12d,%edx
  mov    $0x8,%esi
  mov    %r13,%rdi
  mov    %rax,%r15
  call   <fread@plt>
  mov    0xc(%rsp),%edx
  mov    (%rsp),%rdi
  mov    %rbx,%rcx
  mov    $0x8,%esi
  call   <fread@plt>
  mov    0xc(%rsp),%edx
  mov    %rbx,%rcx
  mov    %rbp,%rdi
  mov    $0x8,%esi
  call   <fread@plt>
  mov    %rbx,%rcx
  mov    %r12d,%edx
  mov    $0x8,%esi
  mov    %r14,%rdi
  call   <fread@plt>
  mov    %rbx,%rcx
  mov    %r12d,%edx
  mov    $0x8,%esi
  mov    %r15,%rdi
  call   <fread@plt>
  mov    (%rsp),%rdx
  mov    %r12d,%r8d
  mov    %r14,%rcx
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <thomas_alg@plt>
  test   %r12d,%r12d
  jle    L23
  cmp    $0x1,%r12d
  je     L18
  mov    %r12d,%edx
  mov    %r15,%rcx
  pxor   %xmm0,%xmm0
  mov    %r14,%rax
  shr    %edx
  sub    %r14,%rcx
  shl    $0x4,%rdx
  add    %r14,%rdx
  xchg   %ax,%ax
L36:
  movupd (%rax),%xmm1
  movupd (%rcx,%rax,1),%xmm3
  add    $0x10,%rax
  subpd  %xmm3,%xmm1
  mulpd  %xmm1,%xmm1
  addsd  %xmm1,%xmm0
  unpckhpd %xmm1,%xmm1
  addsd  %xmm1,%xmm0
  cmp    %rax,%rdx
  jne    L36
  mov    %r12d,%eax
  and    $0xfffffffe,%eax
  test   $0x1,%r12b
  je     L42
L26:
  cltq
  movsd  (%r14,%rax,8),%xmm1
  subsd  (%r15,%rax,8),%xmm1
  mulsd  %xmm1,%xmm1
  addsd  %xmm1,%xmm0
L42:
  pxor   %xmm1,%xmm1
  cvtsi2sd %r12d,%xmm1
  divsd  %xmm1,%xmm0
  movsd  D35(%rip),%xmm1
  call   <pow@plt>
  lea    D28(%rip),%rdi
  call   <printf@plt>
  mov    %r13,%rdi
  call   <free@plt>
  mov    (%rsp),%rdi
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  mov    %r14,%rdi
  call   <free@plt>
  add    $0x18,%rsp
  mov    %r15,%rdi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    10b0 <free@plt>
  nopl   (%rax)
L23:
  pxor   %xmm0,%xmm0
  jmp    L42
L18:
  pxor   %xmm0,%xmm0
  xor    %eax,%eax
  jmp    L26
```

tool_calls: name: read_data
arguments: data_tag: D19
data_type: string
name: read_data
arguments: data_tag: D34
data_type: string
name: read_data
arguments: data_tag: D35
data_type: f32[2]
name: read_data
arguments: data_tag: D28
data_type: string

tool: D19: r

tool: D34: input.dat

tool: {"D35": [0.0,1.75]}

tool: D28: Error is %.5e


assistant: ```c
void test_1(int n) {
  FILE *f = fopen("input.dat", "r");
  double *md = (double *)malloc(sizeof(double) * n);
  double *ud = (double *)malloc(sizeof(double) * (n - 1));
  double *ld = (double *)malloc(sizeof(double) * (n - 1));
  double *fd = (double *)malloc(sizeof(double) * n);
  double *ans = (double *)malloc(sizeof(double) * n);
  fread(md, sizeof(double), n, f);
  fread(ud, sizeof(double), (n - 1), f);
  fread(ld, sizeof(double), (n - 1), f);
  fread(fd, sizeof(double), n, f);
  fread(ans, sizeof(double), n, f);
  thomas_alg(ld, md, ud, fd, n);
  int i;
  double err = 0;
  for (i = 0; i < n; i++)
    err += (fd[i] - ans[i]) * (fd[i] - ans[i]);
  err = pow(err / n, .5);
  printf("Error is %.5e\n", err);
  free(md);
  free(ud);
  free(ld);
  free(fd);
  free(ans);
  return;
}
```