user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<direct_svd>:
  endbr64
  push   %r15
  movslq %edx,%rdx
  push   %r14
  lea    0x0(,%rdx,8),%r15d
  mov    %esi,%r14d
  push   %r13
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rdi,%rbp
  mov    %esi,%edi
  push   %rbx
  imul   %edx,%edi
  mov    %ecx,%ebx
  sub    $0x48,%rsp
  shl    $0x3,%edi
  mov    %r9,0x20(%rsp)
  lea    0x0(,%rsi,8),%r9d
  mov    %r8,0x18(%rsp)
  mov    %rdx,0x8(%rsp)
  cmp    %edx,%esi
  jl     L66
  mov    %r9d,0x10(%rsp)
  call   <malloc@plt>
  mov    %r12d,%edi
  imul   %r12d,%edi
  mov    %rax,%r13
  shl    $0x3,%edi
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,0x30(%rsp)
  call   <malloc@plt>
  mov    0x10(%rsp),%edi
  mov    %rax,0x38(%rsp)
  call   <malloc@plt>
  mov    %rax,0x28(%rsp)
  test   %r14d,%r14d
  jle    L133
  test   %r12d,%r12d
  jle    L133
  mov    0x8(%rsp),%rdx
  movslq %ebx,%r15
  mov    %rbp,%rsi
  mov    %r13,%rcx
  shl    $0x3,%r15
  xor    %r8d,%r8d
  xor    %edi,%edi
  xor    %r10d,%r10d
  lea    0x0(,%rdx,8),%rax
  mov    %r12d,%edx
  mov    %r12d,%r11d
  mov    %rax,0x8(%rsp)
  mov    %r12d,%eax
  and    $0xfffffffe,%edx
  shr    %eax
  lea    -0x1(%rax),%r9d
  lea    -0x1(%r12),%eax
  mov    %eax,0x10(%rsp)
  add    $0x1,%r9
  shl    $0x4,%r9
  nopw   0x0(%rax,%rax,1)
L87:
  lea    0x8(%rsi),%rax
  cmp    %rax,%rcx
  je     L46
  xor    %eax,%eax
  cmpl   $0x2,0x10(%rsp)
  jbe    L46
  nopw   0x0(%rax,%rax,1)
L56:
  movupd (%rsi,%rax,1),%xmm1
  movups %xmm1,(%rcx,%rax,1)
  add    $0x10,%rax
  cmp    %r9,%rax
  jne    L56
  cmp    %edx,%r12d
  je     L33
  lea    (%rdi,%rdx,1),%eax
  cltq
  movsd  0x0(%rbp,%rax,8),%xmm0
  lea    (%r8,%rdx,1),%eax
  cltq
  movsd  %xmm0,0x0(%r13,%rax,8)
L33:
  add    $0x1,%r10d
  add    %r15,%rsi
  add    0x8(%rsp),%rcx
  add    %ebx,%edi
  add    %r12d,%r8d
  cmp    %r10d,%r14d
  jne    L87
L133:
  push   0x28(%rsp)
  mov    0x40(%rsp),%rbp
  mov    %r12d,%r9d
  mov    %r12d,%ecx
  mov    %r12d,%edx
  mov    %r14d,%esi
  mov    %r13,%rdi
  push   %rbp
  mov    0x40(%rsp),%rbx
  mov    %rbx,%r8
  call   <relax_svd@plt>
  push   0x38(%rsp)
  mov    %r12d,%r9d
  mov    %rbx,%r8
  push   0x38(%rsp)
  mov    %r12d,%ecx
  mov    %r12d,%edx
  mov    %r14d,%esi
  push   0x38(%rsp)
  mov    %r13,%rdi
  mov    %eax,%r15d
  push   %rbp
  call   <relax_pinvb@plt>
  add    $0x30,%rsp
  mov    %r13,%rdi
  call   <free@plt>
  mov    %rbx,%rdi
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  mov    0x28(%rsp),%rdi
  call   <free@plt>
L81:
  mov    $0xffffffff,%esi
  lea    D0(%rip),%rdi
  call   <printf@plt>
  add    $0x48,%rsp
  mov    %r15d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L66:
  movslq %esi,%rcx
  mov    %r9d,0x8(%rsp)
  mov    %rcx,0x28(%rsp)
  call   <malloc@plt>
  mov    %r14d,%edi
  imul   %r14d,%edi
  mov    %rax,0x10(%rsp)
  shl    $0x3,%edi
  call   <malloc@plt>
  mov    0x8(%rsp),%edi
  mov    %rax,%r13
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,0x8(%rsp)
  call   <malloc@plt>
  test   %r12d,%r12d
  mov    0x10(%rsp),%r10
  mov    %rax,%r11
  jle    L142
  test   %r14d,%r14d
  jle    L142
  mov    0x28(%rsp),%rcx
  lea    -0x1(%r14),%eax
  movslq %ebx,%rsi
  xor    %edi,%edi
  shl    $0x3,%rax
  mov    $0xfffffffffffffff8,%rbx
  shl    $0x3,%rsi
  lea    0x0(,%rcx,8),%r9
  sub    %rax,%rbx
  lea    0x8(%r10,%rax,1),%rcx
  xchg   %ax,%ax
L145:
  lea    (%rbx,%rcx,1),%rax
  mov    %rbp,%rdx
  nopw   0x0(%rax,%rax,1)
L134:
  movsd  (%rdx),%xmm0
  add    $0x8,%rax
  add    %rsi,%rdx
  movsd  %xmm0,-0x8(%rax)
  cmp    %rcx,%rax
  jne    L134
  add    $0x1,%edi
  add    $0x8,%rbp
  add    %r9,%rcx
  cmp    %edi,%r12d
  jne    L145
L142:
  push   %r11
  mov    0x10(%rsp),%rbx
  mov    %r10,%rdi
  mov    %r14d,%r9d
  mov    %r13,%r8
  mov    %r14d,%ecx
  mov    %r14d,%edx
  mov    %r12d,%esi
  mov    %r11,0x18(%rsp)
  push   %rbx
  mov    %r10,0x18(%rsp)
  call   <relax_svd@plt>
  mov    0x20(%rsp),%r11
  mov    %r14d,%r9d
  mov    %r13,%r8
  mov    %r14d,%ecx
  mov    %r14d,%edx
  mov    %r12d,%esi
  mov    %eax,%r15d
  push   %r11
  mov    %r11,0x28(%rsp)
  push   0x38(%rsp)
  push   0x38(%rsp)
  push   %rbx
  mov    0x38(%rsp),%rdi
  call   <relax_pinvtb@plt>
  mov    0x38(%rsp),%rdi
  add    $0x30,%rsp
  call   <free@plt>
  mov    %r13,%rdi
  call   <free@plt>
  mov    %rbx,%rdi
  call   <free@plt>
  mov    0x10(%rsp),%rdi
  call   <free@plt>
  jmp    L81
  nopl   0x0(%rax,%rax,1)
L46:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L86:
  movsd  (%rsi,%rax,8),%xmm0
  movsd  %xmm0,(%rcx,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%r11
  jne    L86
  jmp    L33
```

tool_calls: name: read_data
arguments: data_label: D0
type: string

tool: D0:  iter %7d

assistant: ```c
int direct_svd(double *A, int m, int n, int stride, double *b, double *x0) {
  double *U, *V, *w, *tmpvec;
  int ustride, vstride;
  int err;
  if (m >= n) {
    int i, j;
    ustride = n;
    vstride = n;
    U = malloc(m * ustride * sizeof U[0]);
    V = malloc(n * vstride * sizeof V[0]);
    w = malloc(n * sizeof w[0]);
    tmpvec = malloc(m * sizeof tmpvec[0]);
    for (i = 0; i < m; i++) {
      for (j = 0; j < n; j++)
        U[i * ustride + j] = A[i * stride + j];
      for (; j < ustride; j++)
        U[i * ustride + j] = 0.0;
    }
    err = relax_svd(U, m, n, ustride, V, vstride, w, tmpvec);
    relax_pinvb(U, m, n, ustride, V, vstride, w, b, x0, tmpvec);
    free(U);
    free(V);
    free(w);
    free(tmpvec);
  } else {
    int i, j;
    i = m;
    m = n;
    n = i;
    ustride = n;
    vstride = n;
    U = malloc(m * ustride * sizeof U[0]);
    V = malloc(n * vstride * sizeof V[0]);
    w = malloc(n * sizeof w[0]);
    tmpvec = malloc(m * sizeof tmpvec[0]);
    for (i = 0; i < m; i++) {
      for (j = 0; j < n; j++)
        U[i * ustride + j] = A[j * stride + i];
      for (; j < ustride; j++)
        U[i * ustride + j] = 0.0;
    }
    err = relax_svd(U, m, n, ustride, V, vstride, w, tmpvec);
    relax_pinvtb(U, m, n, ustride, V, vstride, w, b, x0, tmpvec);
    free(U);
    free(V);
    free(w);
    free(tmpvec);
  }
  printf(" iter %7d", -1);
  return err;
}
```