user: 下面的汇编指令对应的C源代码是什么：

```asm
<mm_double_NT_c>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %esi,%r15d
  mov    %edx,%eax
  mov    %rcx,-0x20(%rsp)
  mov    %r8,-0x48(%rsp)
  mov    %r9,-0x18(%rsp)
  movapd %xmm0,%xmm4
  mov    0x40(%rsp),%ebx
  lea    (%rbx,%rbx,2),%r8d
  lea    -0x1(%rsi),%edx
  and    $0x3,%edx
  cmp    $0x4,%esi
  cmovle %esi,%edx
  mov    %edx,-0x10(%rsp)
  mov    %esi,%ebx
  sub    %edx,%ebx
  mov    %ebx,-0xc(%rsp)
  movslq %eax,%rcx
  imul   $0x55555556,%rcx,%rcx
  shr    $0x20,%rcx
  cltd
  mov    %ecx,%ebx
  sub    %edx,%ebx
  lea    (%rbx,%rbx,2),%edx
  mov    %eax,%ebx
  sub    %edx,%ebx
  mov    %ebx,-0x4(%rsp)
  mov    %edx,-0x8(%rsp)
  imul   0x48(%rsp),%edi
  movslq %edi,%rdx
  mov    %r9,%rbx
  lea    (%r9,%rdx,8),%rdi
  mov    %rdi,-0x50(%rsp)
  ucomisd D0(%rip),%xmm1
  jp     L36
  jne    L36
  mov    %rdi,%r9
  cmp    %rdi,%rbx
  je     L171
  movslq 0x48(%rsp),%rsi
  shl    $0x3,%rsi
  cltq
  lea    (%rbx,%rax,8),%rdi
  mov    %rbx,%rcx
L275:
  mov    %rdi,%rdx
  cmp    %rdi,%rcx
  je     L279
  mov    %rcx,%rax
L178:
  movq   $0x0,(%rax)
  add    $0x8,%rax
  cmp    %rdx,%rax
  jne    L178
L279:
  add    %rsi,%rcx
  add    %rsi,%rdi
  cmp    %rcx,%r9
  jne    L275
L424:
  movslq 0x40(%rsp),%rax
  lea    0x0(,%rax,8),%rbx
  mov    %rbx,-0x30(%rsp)
  movslq %r8d,%r8
  lea    0x0(,%r8,8),%rbx
  mov    %rbx,-0x78(%rsp)
  movslq 0x48(%rsp),%rdx
  lea    0x0(,%rdx,8),%rbx
  mov    %rbx,-0x40(%rsp)
  movslq 0x38(%rsp),%rdx
  lea    0x0(,%rdx,8),%rbx
  mov    %rbx,-0x38(%rsp)
  movslq -0x8(%rsp),%rdx
  mov    -0x18(%rsp),%rdi
  lea    (%rdi,%rdx,8),%rbx
  mov    %rbx,-0x58(%rsp)
  movslq -0xc(%rsp),%rdx
  mov    -0x20(%rsp),%rbp
  lea    0x0(%rbp,%rdx,8),%rbx
  shl    $0x4,%rax
  add    -0x48(%rsp),%rax
  mov    %rax,-0x28(%rsp)
  mov    %rdi,-0x68(%rsp)
  pxor   %xmm5,%xmm5
  mov    -0x10(%rsp),%eax
  mov    %eax,%r14d
  and    $0x4,%r14d
  mov    %eax,%r13d
  and    $0x2,%r13d
  and    $0x1,%eax
  mov    %eax,%r12d
  jmp    L379
L36:
  ucomisd D5(%rip),%xmm1
  jp     L396
  jne    L396
  mov    -0x50(%rsp),%rbx
  cmp    %rbx,-0x18(%rsp)
  jne    L424
L171:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L396:
  mov    -0x18(%rsp),%rbx
  mov    -0x50(%rsp),%r9
  cmp    %r9,%rbx
  je     L171
  movslq 0x48(%rsp),%rdx
  lea    0x0(,%rdx,8),%rdi
  cltq
  lea    (%rbx,%rax,8),%rsi
  mov    %rbx,%rcx
L240:
  mov    %rsi,%rdx
  cmp    %rsi,%rcx
  je     L137
  mov    %rcx,%rax
L238:
  movapd %xmm1,%xmm0
  mulsd  (%rax),%xmm0
  movsd  %xmm0,(%rax)
  add    $0x8,%rax
  cmp    %rdx,%rax
  jne    L238
L137:
  add    %rdi,%rcx
  add    %rdi,%rsi
  cmp    %rcx,%r9
  jne    L240
  jmp    L424
L58:
  movsd  (%r11),%xmm2
  movsd  (%r10),%xmm1
  movsd  (%r9),%xmm0
  movsd  0x0(%rbp),%xmm9
  mov    %r11,-0x70(%rsp)
  lea    0x8(%r11),%rsi
  lea    0x8(%r10),%rcx
  lea    0x8(%r9),%rdx
  lea    0x8(%rbp),%rax
  movapd %xmm5,%xmm7
  movapd %xmm5,%xmm8
  movapd %xmm5,%xmm3
L258:
  mulsd  %xmm9,%xmm2
  addsd  %xmm2,%xmm3
  mulsd  %xmm9,%xmm1
  movapd %xmm1,%xmm2
  addsd  %xmm8,%xmm2
  mulsd  %xmm9,%xmm0
  addsd  %xmm7,%xmm0
  movsd  (%rax),%xmm1
  movapd %xmm1,%xmm7
  mulsd  (%rsi),%xmm7
  addsd  %xmm3,%xmm7
  movapd %xmm1,%xmm3
  mulsd  (%rcx),%xmm3
  addsd  %xmm2,%xmm3
  mulsd  (%rdx),%xmm1
  addsd  %xmm1,%xmm0
  movsd  0x8(%rax),%xmm1
  movapd %xmm1,%xmm6
  mulsd  0x8(%rsi),%xmm6
  addsd  %xmm7,%xmm6
  movapd %xmm1,%xmm2
  mulsd  0x8(%rcx),%xmm2
  addsd  %xmm3,%xmm2
  mulsd  0x8(%rdx),%xmm1
  addsd  %xmm0,%xmm1
  movsd  0x10(%rax),%xmm0
  movapd %xmm0,%xmm3
  mulsd  0x10(%rsi),%xmm3
  addsd  %xmm6,%xmm3
  movapd %xmm0,%xmm8
  mulsd  0x10(%rcx),%xmm8
  addsd  %xmm2,%xmm8
  mulsd  0x10(%rdx),%xmm0
  movapd %xmm0,%xmm7
  addsd  %xmm1,%xmm7
  movsd  0x18(%rsi),%xmm2
  movsd  0x18(%rcx),%xmm1
  movsd  0x18(%rdx),%xmm0
  movsd  0x18(%rax),%xmm9
  add    $0x20,%rax
  add    $0x20,%rsi
  add    $0x20,%rcx
  add    $0x20,%rdx
  cmp    %rbx,%rax
  jne    L258
  mov    -0x70(%rsp),%rdx
  mov    -0x60(%rsp),%rcx
  add    %rcx,%rdx
  lea    (%rcx,%r10,1),%rsi
  add    %r9,%rcx
  mulsd  %xmm9,%xmm2
  addsd  %xmm3,%xmm2
  mulsd  %xmm9,%xmm1
  addsd  %xmm8,%xmm1
  mulsd  %xmm9,%xmm0
  addsd  %xmm7,%xmm0
  jmp    L196
L217:
  mulsd  %xmm4,%xmm2
  addsd  (%rdi),%xmm2
  movsd  %xmm2,(%rdi)
  mulsd  %xmm4,%xmm1
  addsd  0x8(%rdi),%xmm1
  movsd  %xmm1,0x8(%rdi)
  mulsd  %xmm4,%xmm0
  addsd  0x10(%rdi),%xmm0
  movsd  %xmm0,0x10(%rdi)
  mov    -0x78(%rsp),%rax
  add    %rax,%r11
  add    $0x18,%rdi
  add    %rax,%r10
  add    %rax,%r9
  cmp    %r8,%rdi
  je     L338
L314:
  mov    %r10,%rsi
  mov    %r9,%rcx
  cmp    $0x4,%r15d
  jg     L58
  mov    %r11,%rdx
  mov    %rbp,%rax
  pxor   %xmm0,%xmm0
  movapd %xmm0,%xmm1
  movapd %xmm0,%xmm2
L196:
  test   %r14d,%r14d
  je     L329
  movsd  (%rax),%xmm3
  movapd %xmm3,%xmm7
  mulsd  (%rdx),%xmm7
  addsd  %xmm2,%xmm7
  movapd %xmm3,%xmm2
  mulsd  (%rsi),%xmm2
  addsd  %xmm2,%xmm1
  mulsd  (%rcx),%xmm3
  addsd  %xmm0,%xmm3
  movsd  0x8(%rax),%xmm0
  movapd %xmm0,%xmm6
  mulsd  0x8(%rdx),%xmm6
  addsd  %xmm7,%xmm6
  movapd %xmm0,%xmm2
  mulsd  0x8(%rsi),%xmm2
  addsd  %xmm1,%xmm2
  mulsd  0x8(%rcx),%xmm0
  movapd %xmm0,%xmm1
  addsd  %xmm3,%xmm1
  movsd  0x10(%rax),%xmm0
  movapd %xmm0,%xmm7
  mulsd  0x10(%rdx),%xmm7
  addsd  %xmm6,%xmm7
  movapd %xmm0,%xmm6
  mulsd  0x10(%rsi),%xmm6
  addsd  %xmm2,%xmm6
  mulsd  0x10(%rcx),%xmm0
  movapd %xmm0,%xmm3
  addsd  %xmm1,%xmm3
  movsd  0x18(%rax),%xmm0
  movapd %xmm0,%xmm2
  mulsd  0x18(%rdx),%xmm2
  addsd  %xmm7,%xmm2
  movapd %xmm0,%xmm1
  mulsd  0x18(%rsi),%xmm1
  addsd  %xmm6,%xmm1
  mulsd  0x18(%rcx),%xmm0
  addsd  %xmm3,%xmm0
  add    $0x20,%rax
  add    $0x20,%rdx
  add    $0x20,%rsi
  add    $0x20,%rcx
L329:
  test   %r13d,%r13d
  je     L4
  movsd  (%rax),%xmm3
  movapd %xmm3,%xmm7
  mulsd  (%rdx),%xmm7
  addsd  %xmm2,%xmm7
  movapd %xmm3,%xmm6
  mulsd  (%rsi),%xmm6
  addsd  %xmm1,%xmm6
  mulsd  (%rcx),%xmm3
  addsd  %xmm0,%xmm3
  movsd  0x8(%rax),%xmm0
  movapd %xmm0,%xmm2
  mulsd  0x8(%rdx),%xmm2
  addsd  %xmm7,%xmm2
  movapd %xmm0,%xmm1
  mulsd  0x8(%rsi),%xmm1
  addsd  %xmm6,%xmm1
  mulsd  0x8(%rcx),%xmm0
  addsd  %xmm3,%xmm0
  add    $0x10,%rax
  add    $0x10,%rdx
  add    $0x10,%rsi
  add    $0x10,%rcx
L4:
  test   %r12d,%r12d
  je     L217
  movsd  (%rax),%xmm3
  movapd %xmm3,%xmm6
  mulsd  (%rdx),%xmm6
  addsd  %xmm6,%xmm2
  movapd %xmm3,%xmm6
  mulsd  (%rsi),%xmm6
  addsd  %xmm6,%xmm1
  mulsd  (%rcx),%xmm3
  addsd  %xmm3,%xmm0
  jmp    L217
L338:
  mov    -0x40(%rsp),%rdi
  add    %rdi,-0x68(%rsp)
  mov    -0x68(%rsp),%rax
  mov    -0x38(%rsp),%rdx
  add    %rdx,%rbp
  add    %rdi,-0x58(%rsp)
  add    %rdx,%rbx
  cmp    %rax,-0x50(%rsp)
  je     L283
L379:
  mov    -0x58(%rsp),%rax
  mov    %rax,%r8
  mov    -0x68(%rsp),%rdi
  cmp    %rax,%rdi
  je     L338
  mov    -0x48(%rsp),%r11
  mov    %r11,%r10
  add    -0x30(%rsp),%r10
  mov    -0x28(%rsp),%r9
  mov    %rbx,%rax
  sub    %rbp,%rax
  mov    %rax,-0x60(%rsp)
  jmp    L314
L283:
  mov    -0x18(%rsp),%rdi
  mov    -0x50(%rsp),%r8
  cmp    %r8,%rdi
  je     L171
  mov    -0x8(%rsp),%ebx
  mov    %ebx,%eax
  imul   0x40(%rsp),%eax
  cltq
  mov    -0x48(%rsp),%rsi
  lea    (%rsi,%rax,8),%r10
  movslq %ebx,%rax
  shl    $0x3,%rax
  movslq 0x40(%rsp),%rdx
  lea    (%r10,%rdx,8),%r14
  lea    0x8(%r10),%rbx
  mov    %rbx,-0x50(%rsp)
  lea    0x8(%r14),%rbx
  mov    %rbx,-0x48(%rsp)
  mov    0x40(%rsp),%ebx
  lea    (%rbx,%rbx,1),%edx
  movslq %edx,%rdx
  lea    (%r10,%rdx,8),%r12
  movslq 0x48(%rsp),%rdx
  lea    0x0(,%rdx,8),%rbx
  mov    %rbx,-0x78(%rsp)
  movslq 0x38(%rsp),%rdx
  lea    0x0(,%rdx,8),%rbx
  mov    %rbx,-0x70(%rsp)
  lea    0x10(%rdi,%rax,1),%rcx
  movslq -0xc(%rsp),%rdx
  mov    -0x20(%rsp),%rbx
  lea    (%rbx,%rdx,8),%rdi
  mov    -0x4(%rsp),%edx
  mov    %edx,%ebp
  and    $0x2,%ebp
  mov    -0x10(%rsp),%esi
  mov    %esi,%ebx
  and    $0x4,%ebx
  mov    %esi,%r11d
  and    $0x2,%r11d
  and    $0x1,%esi
  mov    %esi,%r9d
  and    $0x1,%edx
  mov    %edx,%r13d
  mov    $0xfffffffffffffff0,%rdx
  sub    %rax,%rdx
  mov    %rdx,-0x68(%rsp)
  mov    %r14,-0x58(%rsp)
  mov    %r8,%r14
  mov    %r12,-0x60(%rsp)
  mov    -0x20(%rsp),%r8
  jmp    L385
L59:
  movsd  (%r10),%xmm2
  mov    -0x58(%rsp),%rax
  movsd  (%rax),%xmm0
  movsd  (%r8),%xmm5
  mov    %r8,%r12
  lea    0x8(%r8),%rax
  mov    -0x48(%rsp),%rsi
  mov    -0x50(%rsp),%rdx
  pxor   %xmm1,%xmm1
  movapd %xmm1,%xmm3
L325:
  mulsd  %xmm5,%xmm2
  addsd  %xmm3,%xmm2
  mulsd  %xmm5,%xmm0
  addsd  %xmm1,%xmm0
  movsd  (%rax),%xmm1
  movapd %xmm1,%xmm3
  mulsd  (%rdx),%xmm3
  addsd  %xmm2,%xmm3
  mulsd  (%rsi),%xmm1
  addsd  %xmm0,%xmm1
  movsd  0x8(%rax),%xmm0
  movapd %xmm0,%xmm2
  mulsd  0x8(%rdx),%xmm2
  addsd  %xmm3,%xmm2
  mulsd  0x8(%rsi),%xmm0
  addsd  %xmm0,%xmm1
  movsd  0x10(%rax),%xmm0
  movapd %xmm0,%xmm3
  mulsd  0x10(%rdx),%xmm3
  addsd  %xmm2,%xmm3
  mulsd  0x10(%rsi),%xmm0
  addsd  %xmm0,%xmm1
  movsd  0x18(%rdx),%xmm2
  movsd  0x18(%rsi),%xmm0
  movsd  0x18(%rax),%xmm5
  add    $0x20,%rax
  add    $0x20,%rdx
  add    $0x20,%rsi
  cmp    %rdi,%rax
  jne    L325
  lea    -0x8(%rdi),%rdx
  sub    %r12,%rdx
  mov    -0x50(%rsp),%rsi
  add    %rdx,%rsi
  add    -0x48(%rsp),%rdx
  mulsd  %xmm5,%xmm2
  addsd  %xmm3,%xmm2
  mulsd  %xmm5,%xmm0
  addsd  %xmm1,%xmm0
  jmp    L287
L337:
  movsd  (%rsi),%xmm0
  movsd  (%r8),%xmm2
  add    $0x8,%rsi
  mov    %r8,-0x40(%rsp)
  lea    0x8(%r8),%rax
  mov    %rsi,%rdx
  pxor   %xmm1,%xmm1
L140:
  mulsd  %xmm2,%xmm0
  addsd  %xmm1,%xmm0
  movsd  (%rdx),%xmm1
  mulsd  (%rax),%xmm1
  addsd  %xmm0,%xmm1
  movsd  0x8(%rdx),%xmm0
  mulsd  0x8(%rax),%xmm0
  addsd  %xmm1,%xmm0
  movsd  0x10(%rdx),%xmm1
  mulsd  0x10(%rax),%xmm1
  addsd  %xmm0,%xmm1
  movsd  0x18(%rdx),%xmm0
  movsd  0x18(%rax),%xmm2
  add    $0x20,%rax
  add    $0x20,%rdx
  cmp    %rdi,%rax
  jne    L140
  sub    -0x40(%rsp),%rsi
  lea    -0x8(%rsi,%rdi,1),%rsi
  mulsd  %xmm2,%xmm0
  addsd  %xmm1,%xmm0
  jmp    L150
L124:
  mulsd  %xmm4,%xmm0
  addsd  (%r12),%xmm0
  movsd  %xmm0,(%r12)
L417:
  mov    -0x70(%rsp),%rax
  add    %rax,%r8
  add    -0x78(%rsp),%rcx
  add    %rax,%rdi
  mov    -0x68(%rsp),%rax
  add    %rcx,%rax
  cmp    %rax,%r14
  je     L171
L385:
  lea    -0x10(%rcx),%r12
  mov    %r10,%rsi
  test   %ebp,%ebp
  je     L239
  cmp    $0x4,%r15d
  jg     L59
  mov    -0x58(%rsp),%rdx
  mov    %r8,%rax
  pxor   %xmm0,%xmm0
  movapd %xmm0,%xmm2
L287:
  test   %ebx,%ebx
  je     L280
  movsd  (%rax),%xmm1
  movapd %xmm1,%xmm3
  mulsd  (%rsi),%xmm3
  addsd  %xmm2,%xmm3
  mulsd  (%rdx),%xmm1
  addsd  %xmm0,%xmm1
  movsd  0x8(%rax),%xmm0
  movapd %xmm0,%xmm2
  mulsd  0x8(%rsi),%xmm2
  addsd  %xmm3,%xmm2
  mulsd  0x8(%rdx),%xmm0
  addsd  %xmm0,%xmm1
  movsd  0x10(%rax),%xmm0
  movapd %xmm0,%xmm3
  mulsd  0x10(%rsi),%xmm3
  addsd  %xmm2,%xmm3
  mulsd  0x10(%rdx),%xmm0
  addsd  %xmm0,%xmm1
  movsd  0x18(%rax),%xmm0
  movapd %xmm0,%xmm2
  mulsd  0x18(%rsi),%xmm2
  addsd  %xmm3,%xmm2
  mulsd  0x18(%rdx),%xmm0
  addsd  %xmm1,%xmm0
  add    $0x20,%rax
  add    $0x20,%rsi
  add    $0x20,%rdx
L280:
  test   %r11d,%r11d
  je     L74
  movsd  (%rax),%xmm1
  movapd %xmm1,%xmm3
  mulsd  (%rsi),%xmm3
  addsd  %xmm2,%xmm3
  mulsd  (%rdx),%xmm1
  addsd  %xmm1,%xmm0
  movsd  0x8(%rax),%xmm1
  movapd %xmm1,%xmm2
  mulsd  0x8(%rsi),%xmm2
  addsd  %xmm3,%xmm2
  mulsd  0x8(%rdx),%xmm1
  addsd  %xmm1,%xmm0
  add    $0x10,%rax
  add    $0x10,%rsi
  add    $0x10,%rdx
L74:
  test   %r9d,%r9d
  je     L321
  movsd  (%rax),%xmm1
  movapd %xmm1,%xmm3
  mulsd  (%rsi),%xmm3
  addsd  %xmm3,%xmm2
  mulsd  (%rdx),%xmm1
  addsd  %xmm1,%xmm0
L321:
  mov    %rcx,%r12
  mulsd  %xmm4,%xmm2
  addsd  -0x10(%rcx),%xmm2
  movsd  %xmm2,-0x10(%rcx)
  mulsd  %xmm4,%xmm0
  addsd  -0x8(%rcx),%xmm0
  movsd  %xmm0,-0x8(%rcx)
  mov    -0x60(%rsp),%rsi
L239:
  test   %r13d,%r13d
  je     L417
  mov    %r8,%rax
  pxor   %xmm0,%xmm0
  cmp    $0x4,%r15d
  jg     L337
L150:
  test   %ebx,%ebx
  je     L2
  movsd  (%rsi),%xmm1
  mulsd  (%rax),%xmm1
  addsd  %xmm0,%xmm1
  movsd  0x8(%rsi),%xmm0
  mulsd  0x8(%rax),%xmm0
  addsd  %xmm1,%xmm0
  movsd  0x10(%rsi),%xmm1
  mulsd  0x10(%rax),%xmm1
  addsd  %xmm0,%xmm1
  movsd  0x18(%rsi),%xmm0
  mulsd  0x18(%rax),%xmm0
  addsd  %xmm1,%xmm0
  add    $0x20,%rax
  add    $0x20,%rsi
L2:
  test   %r11d,%r11d
  je     L432
  movsd  (%rsi),%xmm1
  mulsd  (%rax),%xmm1
  addsd  %xmm1,%xmm0
  movsd  0x8(%rsi),%xmm1
  mulsd  0x8(%rax),%xmm1
  addsd  %xmm1,%xmm0
  add    $0x10,%rax
  add    $0x10,%rsi
L432:
  test   %r9d,%r9d
  je     L124
  movsd  (%rsi),%xmm1
  mulsd  (%rax),%xmm1
  addsd  %xmm1,%xmm0
  jmp    L124
```

tool_calls: name: parse_data
arguments: data_label: D0
data_type: f64
name: parse_data
arguments: data_label: D5
data_type: f64

tool: D0: 0

tool: D5: 1

assistant: ```c
void mm_double_NT_c(const int M, const int K, const int N, const double *const A, const double *const B, double *const C, const int Astride, const int Bstride, const int Cstride, const double alpha, const double beta) {
  const double *a;
  const double *b;
  double *c;
  const double *ap_0;
  const double *bp_0, *bp_1, *bp_2;
  double *cp;
  const int A_sbs_stride = Astride * 1;
  const int B_sbs_stride = Bstride * 3;
  const int C_sbs_stride = Cstride * 1;
  const int k_marg_el = ((K >= 5) ? ((K - 1) & 3) : K);
  const int k_norm = K - k_marg_el;
  const int m_marg_el = M & 0;
  const int m_norm = M - m_marg_el;
  const int n_marg_el = N % 3;
  const int n_norm = N - n_marg_el;
  double *const c_endp = C + m_norm * Cstride;
  register double c0_0, c0_1, c0_2;
  register double t0_0, t0_1, t0_2;
  if (beta == 0.0) {
    double *cprb, *cpre, *cp, *cpe;
    cpre = C + M * Cstride;
    for (cprb = C; cprb != cpre; cprb += Cstride) {
      cpe = cprb + N;
      for (cp = cprb; cp != cpe; cp++) {
        *cp = 0.0;
      }
    }
  } else if (beta != 1.0) {
    double *cprb, *cpre, *cp, *cpe;
    cpre = C + M * Cstride;
    for (cprb = C; cprb != cpre; cprb += Cstride) {
      cpe = cprb + N;
      for (cp = cprb; cp != cpe; cp++) {
        *cp *= (beta);
      }
    }
  }
  for (c = C, a = A; c != c_endp; c += C_sbs_stride, a += A_sbs_stride) {
    const double *const ap_endp = a + k_norm;
    double *const cp_endp = c + n_norm;
    for (b = B, cp = c; cp != cp_endp; b += B_sbs_stride, cp += 3) {
      register double _b0, _b1, _b2;
      register double _a0;
      double *_cp;
      ap_0 = a;
      bp_0 = b;
      bp_1 = bp_0 + Bstride;
      bp_2 = bp_1 + Bstride;
      c0_0 = 0.0;
      c0_1 = 0.0;
      c0_2 = 0.0;
      if (K >= 5) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _b2 = bp_2[0];
        _a0 = ap_0[0];
        bp_0 += 1;
        bp_1 += 1;
        bp_2 += 1;
        ap_0 += 1;
        do {
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          t0_2 = _a0 * _b2;
          c0_0 += t0_0;
          c0_1 += t0_1;
          c0_2 += t0_2;
          _b0 = bp_0[0];
          _b1 = bp_1[0];
          _b2 = bp_2[0];
          _a0 = ap_0[0];
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          t0_2 = _a0 * _b2;
          c0_0 += t0_0;
          c0_1 += t0_1;
          c0_2 += t0_2;
          _b0 = bp_0[1];
          _b1 = bp_1[1];
          _b2 = bp_2[1];
          _a0 = ap_0[1];
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          t0_2 = _a0 * _b2;
          c0_0 += t0_0;
          c0_1 += t0_1;
          c0_2 += t0_2;
          _b0 = bp_0[2];
          _b1 = bp_1[2];
          _b2 = bp_2[2];
          _a0 = ap_0[2];
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          t0_2 = _a0 * _b2;
          c0_0 += t0_0;
          c0_1 += t0_1;
          c0_2 += t0_2;
          _b0 = bp_0[3];
          _b1 = bp_1[3];
          _b2 = bp_2[3];
          _a0 = ap_0[3];
          ap_0 += 4;
          bp_0 += 4;
          bp_1 += 4;
          bp_2 += 4;
        } while (ap_0 != ap_endp);
        t0_0 = _a0 * _b0;
        t0_1 = _a0 * _b1;
        t0_2 = _a0 * _b2;
        c0_0 += t0_0;
        c0_1 += t0_1;
        c0_2 += t0_2;
      }
      if (k_marg_el & 0x4) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _b2 = bp_2[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        c0_2 += _a0 * _b2;
        _b0 = bp_0[1];
        _b1 = bp_1[1];
        _b2 = bp_2[1];
        _a0 = ap_0[1];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        c0_2 += _a0 * _b2;
        _b0 = bp_0[2];
        _b1 = bp_1[2];
        _b2 = bp_2[2];
        _a0 = ap_0[2];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        c0_2 += _a0 * _b2;
        _b0 = bp_0[3];
        _b1 = bp_1[3];
        _b2 = bp_2[3];
        _a0 = ap_0[3];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        c0_2 += _a0 * _b2;
        ap_0 += 4;
        bp_0 += 4;
        bp_1 += 4;
        bp_2 += 4;
      }
      if (k_marg_el & 0x2) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _b2 = bp_2[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        c0_2 += _a0 * _b2;
        _b0 = bp_0[1];
        _b1 = bp_1[1];
        _b2 = bp_2[1];
        _a0 = ap_0[1];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        c0_2 += _a0 * _b2;
        ap_0 += 2;
        bp_0 += 2;
        bp_1 += 2;
        bp_2 += 2;
      }
      if (k_marg_el & 0x1) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _b2 = bp_2[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        c0_2 += _a0 * _b2;
      }
      _cp = cp;
      _cp[0] += alpha * c0_0;
      _cp[1] += alpha * c0_1;
      _cp[2] += alpha * c0_2;
    }
  }
  for (c = C, a = A; c != c_endp; c += C_sbs_stride, a += A_sbs_stride) {
    const double *const ap_endp = a + k_norm;
    b = B + n_norm * Bstride;
    cp = c + n_norm;
    if (n_marg_el & 0x2) {
      register double _b0, _b1;
      register double _a0;
      double *_cp;
      ap_0 = a;
      bp_0 = b;
      bp_1 = bp_0 + Bstride;
      c0_0 = 0.0;
      c0_1 = 0.0;
      if (K >= 5) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _a0 = ap_0[0];
        bp_0 += 1;
        bp_1 += 1;
        ap_0 += 1;
        do {
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          c0_0 += t0_0;
          c0_1 += t0_1;
          _b0 = bp_0[0];
          _b1 = bp_1[0];
          _a0 = ap_0[0];
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          c0_0 += t0_0;
          c0_1 += t0_1;
          _b0 = bp_0[1];
          _b1 = bp_1[1];
          _a0 = ap_0[1];
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          c0_0 += t0_0;
          c0_1 += t0_1;
          _b0 = bp_0[2];
          _b1 = bp_1[2];
          _a0 = ap_0[2];
          t0_0 = _a0 * _b0;
          t0_1 = _a0 * _b1;
          c0_0 += t0_0;
          c0_1 += t0_1;
          _b0 = bp_0[3];
          _b1 = bp_1[3];
          _a0 = ap_0[3];
          ap_0 += 4;
          bp_0 += 4;
          bp_1 += 4;
        } while (ap_0 != ap_endp);
        t0_0 = _a0 * _b0;
        t0_1 = _a0 * _b1;
        c0_0 += t0_0;
        c0_1 += t0_1;
      }
      if (k_marg_el & 0x4) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        _b0 = bp_0[1];
        _b1 = bp_1[1];
        _a0 = ap_0[1];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        _b0 = bp_0[2];
        _b1 = bp_1[2];
        _a0 = ap_0[2];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        _b0 = bp_0[3];
        _b1 = bp_1[3];
        _a0 = ap_0[3];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        ap_0 += 4;
        bp_0 += 4;
        bp_1 += 4;
      }
      if (k_marg_el & 0x2) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        _b0 = bp_0[1];
        _b1 = bp_1[1];
        _a0 = ap_0[1];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
        ap_0 += 2;
        bp_0 += 2;
        bp_1 += 2;
      }
      if (k_marg_el & 0x1) {
        _b0 = bp_0[0];
        _b1 = bp_1[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        c0_1 += _a0 * _b1;
      }
      _cp = cp;
      _cp[0] += alpha * c0_0;
      _cp[1] += alpha * c0_1;
      b += Bstride * 2;
      cp += 2;
    }
    if (n_marg_el & 0x1) {
      register double _b0;
      register double _a0;
      double *_cp;
      ap_0 = a;
      bp_0 = b;
      c0_0 = 0.0;
      if (K >= 5) {
        _b0 = bp_0[0];
        _a0 = ap_0[0];
        bp_0 += 1;
        ap_0 += 1;
        do {
          t0_0 = _a0 * _b0;
          c0_0 += t0_0;
          _b0 = bp_0[0];
          _a0 = ap_0[0];
          t0_0 = _a0 * _b0;
          c0_0 += t0_0;
          _b0 = bp_0[1];
          _a0 = ap_0[1];
          t0_0 = _a0 * _b0;
          c0_0 += t0_0;
          _b0 = bp_0[2];
          _a0 = ap_0[2];
          t0_0 = _a0 * _b0;
          c0_0 += t0_0;
          _b0 = bp_0[3];
          _a0 = ap_0[3];
          ap_0 += 4;
          bp_0 += 4;
        } while (ap_0 != ap_endp);
        t0_0 = _a0 * _b0;
        c0_0 += t0_0;
      }
      if (k_marg_el & 0x4) {
        _b0 = bp_0[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        _b0 = bp_0[1];
        _a0 = ap_0[1];
        c0_0 += _a0 * _b0;
        _b0 = bp_0[2];
        _a0 = ap_0[2];
        c0_0 += _a0 * _b0;
        _b0 = bp_0[3];
        _a0 = ap_0[3];
        c0_0 += _a0 * _b0;
        ap_0 += 4;
        bp_0 += 4;
      }
      if (k_marg_el & 0x2) {
        _b0 = bp_0[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
        _b0 = bp_0[1];
        _a0 = ap_0[1];
        c0_0 += _a0 * _b0;
        ap_0 += 2;
        bp_0 += 2;
      }
      if (k_marg_el & 0x1) {
        _b0 = bp_0[0];
        _a0 = ap_0[0];
        c0_0 += _a0 * _b0;
      }
      _cp = cp;
      _cp[0] += alpha * c0_0;
    }
  }
}
```