user: Demonstrate the C code that generates the assembly output below:

```asm
<foo>:
  endbr64
  test   %esi,%esi
  jle    L29
  push   %r15
  mov    %rcx,%r9
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %edi,%ebp
  push   %rbx
  mov    %rdx,%rbx
  lea    -0x1(%rdi),%edx
  lea    (%rdx,%rdx,1),%ecx
  test   %edx,%edx
  js     L40
  movslq %ecx,%rcx
  mov    %esi,%eax
  mov    0x38(%rsp),%rdx
  movq   $0x0,-0x30(%rsp)
  add    %ecx,%eax
  mov    %ecx,-0x18(%rsp)
  mov    %eax,-0x10(%rsp)
  lea    (%rdi,%rdi,1),%eax
  lea    (%rdx,%rcx,4),%rdx
  mov    %eax,-0xc(%rsp)
  lea    -0x1(%rdi,%rax,1),%eax
  mov    %eax,-0x14(%rsp)
  movslq %edi,%rax
  sub    $0x1,%rax
  mov    %rdx,-0x20(%rsp)
  mov    %rax,-0x28(%rsp)
  nopl   (%rax)
L48:
  mov    -0x14(%rsp),%r12d
  mov    -0x20(%rsp),%rcx
  mov    %ebp,%edx
  xor    %esi,%esi
  mov    -0xc(%rsp),%r13d
  add    -0x30(%rsp),%r13d
  nopl   0x0(%rax,%rax,1)
L91:
  mov    %edx,%r10d
  lea    (%rdx,%rdx,1),%r11d
  mov    %r12d,%edi
  mov    %r13d,%eax
  cmp    %edx,%ebp
  jle    L84
  lea    -0x1(%rsi),%r15d
  mov    %esi,%r14d
  cmp    $0x2,%r15d
  jbe    L88
  mov    -0x30(%rsp),%rax
  movslq %r11d,%r11
  add    %r11,%rax
  lea    (%r8,%rax,4),%r10
  mov    -0x28(%rsp),%rax
  sub    %rsi,%rax
  add    %r11,%rax
  mov    %esi,%r11d
  shr    $0x2,%r11d
  lea    (%r9,%rax,4),%rdi
  xor    %eax,%eax
  shl    $0x5,%r11
  nopl   0x0(%rax)
L50:
  movups (%r10,%rax,1),%xmm6
  movups 0x10(%r10,%rax,1),%xmm5
  movups (%rdi,%rax,1),%xmm3
  movaps %xmm6,%xmm7
  shufps $0xdd,%xmm5,%xmm6
  shufps $0x88,%xmm5,%xmm7
  movups 0x10(%rdi,%rax,1),%xmm5
  movaps %xmm3,%xmm0
  add    $0x20,%rax
  shufps $0xdd,%xmm5,%xmm3
  shufps $0x88,%xmm5,%xmm0
  movaps %xmm3,%xmm1
  movaps %xmm0,%xmm5
  mulps  %xmm7,%xmm5
  mulps  %xmm6,%xmm1
  mulps  %xmm7,%xmm3
  mulps  %xmm6,%xmm0
  addps  %xmm5,%xmm1
  subps  %xmm3,%xmm0
  addss  %xmm1,%xmm2
  movaps %xmm1,%xmm5
  shufps $0x55,%xmm1,%xmm5
  movaps %xmm0,%xmm3
  addss  %xmm2,%xmm5
  movaps %xmm1,%xmm2
  shufps $0x55,%xmm0,%xmm3
  unpckhps %xmm1,%xmm2
  shufps $0xff,%xmm1,%xmm1
  addss  %xmm5,%xmm2
  addss  %xmm1,%xmm2
  movaps %xmm0,%xmm1
  addss  %xmm4,%xmm1
  addss  %xmm1,%xmm3
  movaps %xmm0,%xmm1
  unpckhps %xmm0,%xmm1
  shufps $0xff,%xmm0,%xmm0
  addss  %xmm3,%xmm1
  movaps %xmm1,%xmm4
  addss  %xmm0,%xmm4
  cmp    %rax,%r11
  jne    L50
  mov    %r14d,%r11d
  and    $0xfffffffc,%r11d
  lea    (%r11,%r11,1),%eax
  lea    (%rdx,%r11,1),%r10d
  lea    (%r12,%rax,1),%edi
  add    %r13d,%eax
  cmp    %r11d,%r14d
  je     L84
L88:
  cltq
  movslq %edi,%rdi
  lea    0x0(,%rax,4),%r11
  movss  (%r8,%rax,4),%xmm6
  lea    0x0(,%rdi,4),%rax
  movss  (%r9,%rdi,4),%xmm0
  movss  0x4(%r8,%r11,1),%xmm5
  movss  0x4(%r9,%rax,1),%xmm1
  lea    0x1(%r10),%edi
  movaps %xmm6,%xmm3
  mulss  %xmm0,%xmm3
  movaps %xmm5,%xmm7
  mulss  %xmm1,%xmm7
  mulss  %xmm5,%xmm0
  mulss  %xmm6,%xmm1
  addss  %xmm7,%xmm3
  subss  %xmm1,%xmm0
  addss  %xmm3,%xmm2
  addss  %xmm0,%xmm4
  cmp    %edi,%ebp
  jle    L84
  movss  0x8(%r9,%rax,1),%xmm5
  movss  0xc(%r9,%rax,1),%xmm1
  add    $0x2,%r10d
  movss  0x8(%r8,%r11,1),%xmm6
  movss  0xc(%r8,%r11,1),%xmm0
  movaps %xmm1,%xmm3
  movaps %xmm5,%xmm7
  mulss  %xmm0,%xmm3
  mulss  %xmm6,%xmm7
  mulss  %xmm6,%xmm1
  mulss  %xmm5,%xmm0
  addss  %xmm7,%xmm3
  subss  %xmm1,%xmm0
  addss  %xmm3,%xmm2
  addss  %xmm0,%xmm4
  cmp    %ebp,%r10d
  jge    L84
  movss  0x10(%r9,%rax,1),%xmm5
  movss  0x14(%r9,%rax,1),%xmm1
  movss  0x10(%r8,%r11,1),%xmm6
  movss  0x14(%r8,%r11,1),%xmm0
  movaps %xmm1,%xmm3
  movaps %xmm5,%xmm7
  mulss  %xmm0,%xmm3
  mulss  %xmm6,%xmm7
  mulss  %xmm6,%xmm1
  mulss  %xmm5,%xmm0
  addss  %xmm7,%xmm3
  subss  %xmm1,%xmm0
  addss  %xmm3,%xmm2
  addss  %xmm0,%xmm4
L84:
  movss  (%rbx),%xmm0
  add    $0x1,%rsi
  sub    $0x8,%rcx
  sub    $0x3,%r12d
  movss  0x4(%rbx),%xmm1
  sub    $0x2,%r13d
  mulss  %xmm2,%xmm0
  mulss  %xmm4,%xmm1
  subss  %xmm1,%xmm0
  addss  0x8(%rcx),%xmm0
  movss  %xmm0,0x8(%rcx)
  movss  (%rbx),%xmm0
  movss  0x4(%rbx),%xmm1
  mulss  %xmm4,%xmm0
  mulss  %xmm2,%xmm1
  addss  %xmm1,%xmm0
  addss  0xc(%rcx),%xmm0
  movss  %xmm0,0xc(%rcx)
  sub    $0x1,%edx
  jne    L91
  addl   $0x1,-0x18(%rsp)
  mov    -0x18(%rsp),%eax
  addq   $0x4,-0x20(%rsp)
  addq   $0x2,-0x30(%rsp)
  cmp    -0x10(%rsp),%eax
  jne    L48
L40:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L29:
  ret
```

assistant: ```c
int foo(const int m, const int n, const float *a1, const float *a, const float *b, const float *b1, float *c) {
  float t1_i, t1_r;
  int i, iaki, ibij, ibkj, icij, j, jai, jbj, jcj, k, lda2 = 1, ldb2 = 2, ldc2 = 1;
  for (j = 0, jbj = 0, jcj = 0; j < n; j++, jbj += ldb2, jcj += ldc2) {
    for (i = m - 1, jai = (m - 1) * lda2, ibij = ((m - 1) << 1) + jbj, icij = ((m - 1) << 1) + jcj; i >= 0; i--, jai -= lda2, ibij -= 2, icij -= 2) {
      for (k = i + 1, iaki = ((i + 1) << 1) + jai, ibkj = ((i + 1) << 1) + jbj; k < m; k++, iaki += 2, ibkj += 2) {
        t1_r += (b[ibkj]) * (a[iaki]) - (b[ibkj + 1]) * (-a[iaki + 1]);
        t1_i += (b[ibkj]) * (-a[iaki + 1]) + (b[ibkj + 1]) * (a[iaki]);
      }
      c[icij] += (a1[0]) * (t1_r) - (a1[1]) * (t1_i);
      c[icij + 1] += (a1[0]) * (t1_i) + (a1[1]) * (t1_r);
    }
  }
}
```