user: What is the c source code of the assembly code below?

```asm
<denseGETRF>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,0x30(%rsp)
  mov    %rdx,0x48(%rsp)
  mov    %rcx,0x50(%rsp)
  test   %rdx,%rdx
  je     L175
  lea    (%rdi,%rdx,8),%rax
  mov    %rsi,%rbp
  xor    %r13d,%r13d
  movq   $0x2,0x18(%rsp)
  mov    %rax,0x58(%rsp)
  movq   $0x0,0x20(%rsp)
  nopl   0x0(%rax,%rax,1)
L119:
  lea    0x0(,%r13,8),%rax
  lea    0x1(%r13),%rbx
  mov    %rax,0x28(%rsp)
  mov    0x30(%rsp),%rax
  mov    %rbx,0x10(%rsp)
  mov    (%rax,%r13,8),%r15
  cmp    %rbx,%rbp
  jbe    L31
  mov    %rbp,0x8(%rsp)
  nopl   (%rax)
L290:
  movsd  (%r15,%rbx,8),%xmm0
  lea    0x0(,%r13,8),%r14
  lea    (%r15,%r14,1),%rbp
  call   <fabs@plt>
  movsd  0x0(%rbp),%xmm0
  mov    %rax,%r12
  call   <fabs@plt>
  cmp    %rax,%r12
  jle    L185
  lea    0x0(,%rbx,8),%r14
  mov    %rbx,%r13
  lea    (%r15,%r14,1),%rbp
L185:
  add    $0x1,%rbx
  cmp    %rbx,0x8(%rsp)
  ja     L290
  mov    %rbp,%r12
  pxor   %xmm5,%xmm5
  mov    0x50(%rsp),%rax
  mov    0x20(%rsp),%rsi
  ucomisd (%r12),%xmm5
  mov    0x8(%rsp),%rbp
  mov    %r13,(%rax,%rsi,8)
  jp     L4
  je     L56
L4:
  cmp    0x20(%rsp),%r13
  jne    L257
L19:
  mov    0x28(%rsp),%rax
  mov    0x18(%rsp),%rsi
  mov    %rbp,%rdi
  movsd  D4(%rip),%xmm1
  sub    0x10(%rsp),%rdi
  divsd  (%r15,%rax,1),%xmm1
  cmp    %rbp,%rsi
  mov    $0x1,%eax
  cmova  %rax,%rdi
  mov    %rbp,%rax
  sub    0x20(%rsp),%rax
  cmp    $0x2,%rax
  je     L42
  cmp    %rbp,%rsi
  ja     L42
  mov    0x28(%rsp),%rax
  mov    %rdi,%rcx
  movapd %xmm1,%xmm2
  shr    %rcx
  unpcklpd %xmm2,%xmm2
  lea    0x8(%r15,%rax,1),%rax
  shl    $0x4,%rcx
  add    %rax,%rcx
  nopl   0x0(%rax)
L143:
  movupd (%rax),%xmm0
  add    $0x10,%rax
  mulpd  %xmm2,%xmm0
  movups %xmm0,-0x10(%rax)
  cmp    %rax,%rcx
  jne    L143
  mov    0x10(%rsp),%rax
  mov    %rdi,%rcx
  and    $0xfffffffffffffffe,%rcx
  add    %rcx,%rax
  cmp    %rcx,%rdi
  je     L82
L295:
  lea    (%r15,%rax,8),%rax
  mulsd  (%rax),%xmm1
  movsd  %xmm1,(%rax)
L82:
  mov    0x10(%rsp),%rsi
  cmp    %rsi,0x48(%rsp)
  je     L175
  mov    0x18(%rsp),%rax
  mov    %rsi,%rbx
  mov    %rbp,%rcx
  mov    0x28(%rsp),%rdi
  sub    %rbx,%rcx
  mov    %rbp,%r12
  cmp    %rbp,%rax
  lea    (%r15,%rax,8),%rdx
  lea    0x8(%rdi),%rsi
  mov    $0x1,%eax
  cmovbe %rcx,%rax
  sub    0x20(%rsp),%r12
  lea    (%r15,%rsi,1),%r11
  mov    %rbx,%rcx
  mov    %r12,0x8(%rsp)
  mov    0x48(%rsp),%r12
  mov    %rax,%r14
  mov    %rax,%r9
  mov    %rdx,0x28(%rsp)
  and    $0xfffffffffffffffe,%r14
  shr    %r9
  mov    %rax,0x40(%rsp)
  lea    (%rbx,%r14,1),%r8
  mov    %r14,0x38(%rsp)
  mov    0x30(%rsp),%rbx
  shl    $0x4,%r9
  shl    $0x3,%r8
  lea    (%r15,%r8,1),%r10
  jmp    L16
L159:
  add    $0x1,%rcx
  cmp    %rcx,%r12
  jbe    L27
  nopl   (%rax)
L16:
  mov    (%rbx,%rcx,8),%rax
  pxor   %xmm4,%xmm4
  movsd  (%rax,%rdi,1),%xmm0
  ucomisd %xmm4,%xmm0
  jp     L139
  je     L159
L139:
  cmp    0x10(%rsp),%rbp
  jbe    L159
  cmpq   $0x2,0x8(%rsp)
  lea    (%rax,%rsi,1),%rdx
  setne  %r14b
  cmp    %rbp,0x18(%rsp)
  setbe  %r13b
  test   %r13b,%r14b
  je     L248
  cmp    %rdx,0x28(%rsp)
  je     L248
  movapd %xmm0,%xmm3
  xor    %r13d,%r13d
  unpcklpd %xmm3,%xmm3
  nopw   0x0(%rax,%rax,1)
L134:
  movupd (%r11,%r13,1),%xmm2
  movupd (%rdx,%r13,1),%xmm1
  mulpd  %xmm3,%xmm2
  subpd  %xmm2,%xmm1
  movups %xmm1,(%rdx,%r13,1)
  add    $0x10,%r13
  cmp    %r9,%r13
  jne    L134
  mov    0x40(%rsp),%r14
  cmp    %r14,0x38(%rsp)
  je     L159
  mulsd  (%r10),%xmm0
  add    %r8,%rax
  add    $0x1,%rcx
  movsd  (%rax),%xmm1
  subsd  %xmm0,%xmm1
  movsd  %xmm1,(%rax)
  cmp    %rcx,%r12
  ja     L16
L27:
  addq   $0x1,0x20(%rsp)
  mov    0x10(%rsp),%r13
  addq   $0x1,0x18(%rsp)
  jmp    L119
  nopl   0x0(%rax)
L257:
  mov    0x30(%rsp),%rcx
  mov    0x58(%rsp),%rsi
  mov    0x28(%rsp),%rdi
  nop
L142:
  mov    (%rcx),%rax
  add    $0x8,%rcx
  lea    (%rax,%r14,1),%rdx
  add    %rdi,%rax
  movsd  (%rdx),%xmm0
  movsd  (%rax),%xmm1
  movsd  %xmm1,(%rdx)
  movsd  %xmm0,(%rax)
  cmp    %rcx,%rsi
  jne    L142
  jmp    L19
  nopl   0x0(%rax,%rax,1)
L248:
  mov    0x10(%rsp),%rdx
  nopl   (%rax)
L173:
  movsd  (%r15,%rdx,8),%xmm2
  movsd  (%rax,%rdx,8),%xmm1
  mulsd  %xmm0,%xmm2
  subsd  %xmm2,%xmm1
  movsd  %xmm1,(%rax,%rdx,8)
  add    $0x1,%rdx
  cmp    %rdx,%rbp
  ja     L173
  jmp    L159
L175:
  movq   $0x0,0x10(%rsp)
L56:
  mov    0x10(%rsp),%rax
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L31:
  mov    0x20(%rsp),%rax
  pxor   %xmm6,%xmm6
  mov    0x50(%rsp),%rsi
  ucomisd (%r15,%rax,8),%xmm6
  mov    %r13,(%rsi,%rax,8)
  jp     L82
  jne    L82
  jmp    L56
  nopl   0x0(%rax)
L42:
  mov    0x10(%rsp),%rax
  jmp    L295
```

tool_calls: name: disassemble_data
arguments: tag: D4
data_type: f64

tool: D4: 1

assistant: ```c
long int denseGETRF(double **a, const size_t m, const size_t n, long int *p) {
  long int i, j;
  long int l;
  double *col_j, *col_k;
  double temp, mult, a_kj;
  for (long int k = 0; k < n; k++) {
    col_k = a[k];
    l = k;
    for (i = k + 1; i < m; i++)
      if (fabs(col_k[i]) > fabs(col_k[l]))
        l = i;
    p[k] = l;
    if (col_k[l] == 0.0)
      return (k + 1);
    if (l != k) {
      for (i = 0; i < n; i++) {
        temp = a[i][l];
        a[i][l] = a[i][k];
        a[i][k] = temp;
      }
    }
    mult = 1.0 / col_k[k];
    for (i = k + 1; i < m; i++)
      col_k[i] *= mult;
    for (j = k + 1; j < n; j++) {
      col_j = a[j];
      a_kj = col_j[k];
      if (a_kj != 0.0) {
        for (i = k + 1; i < m; i++)
          col_j[i] -= a_kj * col_k[i];
      }
    }
  }
  return (0);
}
```