user: What would the C source look like for the assembly code provided here?

```asm
<i3tensor>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,(%rsp)
  mov    %rsi,0x20(%rsp)
  mov    %rdx,0x8(%rsp)
  mov    %rcx,%r14
  mov    %r8,0x28(%rsp)
  mov    %rsi,%rax
  sub    %rdi,%rax
  lea    0x1(%rax),%r15
  mov    %rcx,%r13
  sub    %rdx,%r13
  add    $0x1,%r13
  sub    %r8,%r9
  lea    0x1(%r9),%rbx
  lea    0x10(,%rax,8),%edi
  mov    %edi,%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L66
L86:
  mov    $0x1,%eax
  sub    (%rsp),%rax
  lea    0x0(%rbp,%rax,8),%rax
  mov    %rax,0x10(%rsp)
  imul   %r13,%r15
  lea    0x8(,%r15,8),%edi
  mov    %edi,%edi
  call   <malloc@plt>
  mov    %rax,0x8(%rbp)
  test   %rax,%rax
  je     L38
L30:
  mov    0x8(%rbp),%rax
  mov    0x8(%rsp),%rsi
  lea    0x0(,%rsi,8),%r12
  mov    %rax,0x18(%rsp)
  sub    %r12,%rax
  lea    0x8(%rax),%rax
  mov    %rax,0x8(%rbp)
  imul   %rbx,%r15
  lea    0x4(,%r15,4),%edi
  mov    %edi,%edi
  call   <malloc@plt>
  mov    0x18(%rsp),%rsi
  mov    %rax,0x8(%rsi)
  test   %rax,%rax
  je     L88
L57:
  mov    0x8(%rbp),%rcx
  lea    (%rcx,%r12,1),%rax
  mov    $0x1,%edx
  sub    0x28(%rsp),%rdx
  shl    $0x2,%rdx
  add    %rdx,(%rax)
  mov    0x8(%rsp),%rsi
  add    $0x1,%rsi
  cmp    %rsi,%r14
  jl     L5
  lea    0x0(,%rbx,4),%rdi
  lea    (%rcx,%r14,8),%rcx
L33:
  mov    %rdi,%rdx
  add    (%rax),%rdx
  mov    %rdx,0x8(%rax)
  add    $0x8,%rax
  cmp    %rcx,%rax
  jne    L33
L5:
  mov    0x20(%rsp),%rax
  mov    (%rsp),%rdi
  cmp    %rdi,%rax
  jle    L91
  lea    0x0(,%r13,8),%r8
  imul   %rbx,%r13
  lea    0x0(,%r13,4),%rdi
  shl    $0x2,%rbx
  add    $0x8,%rbp
  mov    0x10(%rsp),%rcx
  lea    (%rcx,%rax,8),%r9
  lea    0x0(,%r14,8),%r10
L4:
  mov    0x0(%rbp),%rdx
  lea    (%rdx,%r8,1),%rcx
  mov    %rcx,0x8(%rbp)
  lea    (%rcx,%r12,1),%rax
  mov    %rdi,%r11
  add    (%rdx,%r12,1),%r11
  mov    %r11,(%rax)
  cmp    %rsi,%r14
  jl     L10
  add    %r10,%rcx
L61:
  mov    %rbx,%rdx
  add    (%rax),%rdx
  mov    %rdx,0x8(%rax)
  add    $0x8,%rax
  cmp    %rax,%rcx
  jne    L61
L10:
  add    $0x8,%rbp
  cmp    %r9,%rbp
  jne    L4
L91:
  mov    0x10(%rsp),%rax
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L66:
  lea    D7(%rip),%rdi
  mov    $0x0,%eax
  call   <nrerror@plt>
  jmp    L86
L38:
  lea    D12(%rip),%rdi
  call   <nrerror@plt>
  jmp    L30
L88:
  lea    D19(%rip),%rdi
  call   <nrerror@plt>
  jmp    L57
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D7
type_guessed: string
name: extract_symbolic_data
arguments: data_label: D12
type_guessed: string
name: extract_symbolic_data
arguments: data_label: D19
type_guessed: string

tool: D7: allocation failure 1 in i3tensor()

tool: D12: allocation failure 2 in i3tensor()

tool: D19: allocation failure 3 in i3tensor()

assistant: ```c
int ***i3tensor(nrl, nrh, ncl, nch, ndl, ndh)
long nch, ncl, ndh, ndl, nrh, nrl;
{
  long i, j, nrow = nrh - nrl + 1, ncol = nch - ncl + 1, ndep = ndh - ndl + 1;
  int ***t;
  t = (int ***)malloc((unsigned int)((nrow + 1) * sizeof(int **)));
  if (!t)
    nrerror("allocation failure 1 in i3tensor()");
  t += 1;
  t -= nrl;
  t[nrl] = (int **)malloc((unsigned int)((nrow * ncol + 1) * sizeof(int *)));
  if (!t[nrl])
    nrerror("allocation failure 2 in i3tensor()");
  t[nrl] += 1;
  t[nrl] -= ncl;
  t[nrl][ncl] = (int *)malloc((unsigned int)((nrow * ncol * ndep + 1) * sizeof(int)));
  if (!t[nrl][ncl])
    nrerror("allocation failure 3 in i3tensor()");
  t[nrl][ncl] += 1;
  t[nrl][ncl] -= ndl;
  for (j = ncl + 1; j <= nch; j++)
    t[nrl][j] = t[nrl][j - 1] + ndep;
  for (i = nrl + 1; i <= nrh; i++) {
    t[i] = t[i - 1] + ncol;
    t[i][ncl] = t[i - 1][ncl] + ncol * ndep;
    for (j = ncl + 1; j <= nch; j++)
      t[i][j] = t[i][j - 1] + ndep;
  }
  return t;
}
```