user: 下面的汇编指令对应的C源代码是什么:

```asm
<project_r>:
  endbr64
  movslq %esi,%r11
  push   %r12
  lea    (%r11,%rdi,2),%eax
  push   %rbp
  movslq %ecx,%rbp
  lea    (%rax,%rax,2),%r10d
  push   %rbx
  movslq %edx,%rbx
  lea    (%r10,%rdi,1),%eax
  lea    (%r11,%rax,2),%eax
  add    %eax,%eax
  cltq
  movsd  (%r8,%rax,8),%xmm3
  movsd  0x8(%r8,%rax,8),%xmm4
  lea    0x0(%rbp,%rbx,2),%eax
  lea    (%rax,%rax,2),%r9d
  lea    (%r9,%rdi,1),%eax
  lea    (%r11,%rax,2),%eax
  add    %eax,%eax
  cltq
  movsd  (%r8,%rax,8),%xmm5
  movsd  0x8(%r8,%rax,8),%xmm6
  test   %r11d,%r11d
  jg     L29
  movslq %edi,%rax
  movslq %r11d,%rcx
  movslq %ebx,%rdx
  movslq %ebp,%r12
  lea    0x1(%rcx),%rsi
  lea    (%r12,%rdx,2),%rdx
  movapd %xmm3,%xmm10
  lea    (%rcx,%rax,2),%rcx
  lea    (%rdx,%rdx,2),%rdx
  movapd %xmm4,%xmm9
  lea    (%rcx,%rcx,2),%rcx
  movapd %xmm5,%xmm8
  movapd %xmm6,%xmm7
  add    %rax,%rdx
  lea    (%rsi,%rdx,2),%rdx
  unpcklpd %xmm10,%xmm10
  unpcklpd %xmm7,%xmm7
  add    %rcx,%rax
  mov    %r11d,%ecx
  lea    (%rsi,%rax,2),%rsi
  shl    $0x4,%rdx
  unpcklpd %xmm9,%xmm9
  neg    %ecx
  shl    $0x4,%rsi
  add    %r8,%rdx
  unpcklpd %xmm8,%xmm8
  add    $0x1,%rcx
  add    %r8,%rsi
  xor    %eax,%eax
  shl    $0x4,%rcx
  nopl   (%rax)
L57:
  movupd (%rdx,%rax,1),%xmm0
  movupd (%rdx,%rax,1),%xmm1
  movupd (%rsi,%rax,1),%xmm2
  mulpd  %xmm10,%xmm0
  mulpd  %xmm9,%xmm1
  mulpd  %xmm7,%xmm2
  movapd %xmm0,%xmm11
  shufpd $0x1,%xmm1,%xmm1
  subpd  %xmm1,%xmm11
  addpd  %xmm1,%xmm0
  movupd (%rsi,%rax,1),%xmm1
  shufpd $0x1,%xmm2,%xmm2
  mulpd  %xmm8,%xmm1
  movsd  %xmm11,%xmm0
  subpd  %xmm1,%xmm0
  movapd %xmm0,%xmm1
  subpd  %xmm2,%xmm0
  addpd  %xmm2,%xmm1
  movsd  %xmm1,%xmm0
  movups %xmm0,(%rdx,%rax,1)
  add    $0x10,%rax
  cmp    %rcx,%rax
  jne    L57
L29:
  lea    0x1(%rdi),%ecx
  cmp    $0x2,%ecx
  jg     L52
  movslq %edi,%rsi
  lea    (%r11,%rsi,2),%rax
  lea    (%rax,%rax,2),%r11
  lea    0x0(%rbp,%rbx,2),%rax
  lea    (%rax,%rax,2),%rbx
  lea    0x1(%rsi,%r11,1),%rax
  lea    0x1(%rsi,%rbx,1),%rdx
  lea    0x2(%rsi,%rbx,1),%rbx
  shl    $0x5,%rax
  shl    $0x5,%rbx
  shl    $0x5,%rdx
  cmp    %rbx,%rax
  jge    L20
  lea    0x2(%rsi,%r11,1),%rsi
  shl    $0x5,%rsi
  cmp    %rsi,%rdx
  jl     L31
L20:
  mov    $0x1,%ecx
  unpcklpd %xmm3,%xmm3
  unpcklpd %xmm4,%xmm4
  add    %r8,%rdx
  sub    %edi,%ecx
  unpcklpd %xmm5,%xmm5
  unpcklpd %xmm6,%xmm6
  add    %rax,%r8
  add    $0x1,%rcx
  xor    %eax,%eax
  shl    $0x5,%rcx
  xchg   %ax,%ax
L63:
  movupd (%rdx,%rax,1),%xmm8
  movupd (%rdx,%rax,1),%xmm1
  movupd 0x10(%rdx,%rax,1),%xmm9
  movupd 0x10(%rdx,%rax,1),%xmm0
  mulpd  %xmm3,%xmm8
  movupd (%r8,%rax,1),%xmm7
  movupd 0x10(%r8,%rax,1),%xmm2
  mulpd  %xmm4,%xmm1
  mulpd  %xmm3,%xmm9
  mulpd  %xmm4,%xmm0
  mulpd  %xmm6,%xmm7
  mulpd  %xmm6,%xmm2
  movapd %xmm8,%xmm10
  shufpd $0x1,%xmm1,%xmm1
  subpd  %xmm1,%xmm10
  addpd  %xmm8,%xmm1
  movupd (%r8,%rax,1),%xmm8
  mulpd  %xmm5,%xmm8
  shufpd $0x1,%xmm0,%xmm0
  movsd  %xmm10,%xmm1
  shufpd $0x1,%xmm7,%xmm7
  shufpd $0x1,%xmm2,%xmm2
  subpd  %xmm8,%xmm1
  movapd %xmm9,%xmm8
  subpd  %xmm0,%xmm8
  addpd  %xmm9,%xmm0
  movsd  %xmm8,%xmm0
  movupd 0x10(%r8,%rax,1),%xmm8
  mulpd  %xmm5,%xmm8
  subpd  %xmm8,%xmm0
  movapd %xmm1,%xmm8
  subpd  %xmm7,%xmm1
  addpd  %xmm7,%xmm8
  movsd  %xmm8,%xmm1
  movups %xmm1,(%rdx,%rax,1)
  movapd %xmm0,%xmm1
  subpd  %xmm2,%xmm0
  addpd  %xmm2,%xmm1
  movsd  %xmm1,%xmm0
  movups %xmm0,0x10(%rdx,%rax,1)
  add    $0x20,%rax
  cmp    %rcx,%rax
  jne    L63
L52:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L31:
  lea    (%r10,%rcx,1),%eax
  add    %ecx,%r9d
  mov    $0x1,%ecx
  shl    $0x2,%eax
  sub    %edi,%ecx
  cltq
  lea    (%r8,%rax,8),%rdx
  lea    0x0(,%r9,4),%eax
  movslq %r9d,%r9
  add    %r9,%rcx
  cltq
  shl    $0x5,%rcx
  lea    (%r8,%rax,8),%rax
  lea    0x20(%r8,%rcx,1),%rcx
  xchg   %ax,%ax
L62:
  movsd  (%rax),%xmm0
  movapd %xmm3,%xmm1
  movsd  (%rdx),%xmm2
  add    $0x20,%rax
  movsd  -0x18(%rax),%xmm8
  movapd %xmm4,%xmm9
  movsd  0x8(%rdx),%xmm7
  add    $0x20,%rdx
  mulsd  %xmm0,%xmm1
  mulsd  %xmm8,%xmm9
  mulsd  %xmm4,%xmm0
  mulsd  %xmm3,%xmm8
  subsd  %xmm9,%xmm1
  movapd %xmm5,%xmm9
  mulsd  %xmm2,%xmm9
  addsd  %xmm8,%xmm0
  mulsd  %xmm6,%xmm2
  movsd  -0x8(%rax),%xmm8
  subsd  %xmm9,%xmm1
  movapd %xmm6,%xmm9
  mulsd  %xmm7,%xmm9
  mulsd  %xmm5,%xmm7
  addsd  %xmm9,%xmm1
  movapd %xmm4,%xmm9
  subsd  %xmm7,%xmm0
  mulsd  %xmm8,%xmm9
  mulsd  %xmm3,%xmm8
  movsd  %xmm1,-0x20(%rax)
  movapd %xmm3,%xmm1
  subsd  %xmm2,%xmm0
  movsd  %xmm0,-0x18(%rax)
  movsd  -0x10(%rax),%xmm0
  movsd  -0x10(%rdx),%xmm2
  movsd  -0x8(%rdx),%xmm7
  mulsd  %xmm0,%xmm1
  mulsd  %xmm4,%xmm0
  subsd  %xmm9,%xmm1
  movapd %xmm5,%xmm9
  mulsd  %xmm2,%xmm9
  addsd  %xmm8,%xmm0
  mulsd  %xmm6,%xmm2
  subsd  %xmm9,%xmm1
  movapd %xmm6,%xmm9
  mulsd  %xmm7,%xmm9
  mulsd  %xmm5,%xmm7
  addsd  %xmm9,%xmm1
  subsd  %xmm7,%xmm0
  movsd  %xmm1,-0x10(%rax)
  subsd  %xmm2,%xmm0
  movsd  %xmm0,-0x8(%rax)
  cmp    %rcx,%rax
  jne    L62
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
void project_r(int a, int i, int b, int j, double r[]) {
  int c, k;
  double xi, yi, xj, yj;
  xi = (&((r)[2 * ((i) + 2 * ((a) + 3 * ((i) + 2 * (a))))]))[0];
  yi = (&((r)[2 * ((i) + 2 * ((a) + 3 * ((i) + 2 * (a))))]))[1];
  xj = (&((r)[2 * ((i) + 2 * ((a) + 3 * ((j) + 2 * (b))))]))[0];
  yj = (&((r)[2 * ((i) + 2 * ((a) + 3 * ((j) + 2 * (b))))]))[1];
  for (c = a, k = i + 1; k < 2; k++) {
    double zi = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((i) + 2 * (a))))]))[0];
    double ti = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((i) + 2 * (a))))]))[1];
    double zj = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[0];
    double tj = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[1];
    (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[0] = xi * zj - yi * tj - xj * zi + yj * ti;
    (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[1] = xi * tj + yi * zj - xj * ti - yj * zi;
  }
  for (c = a + 1; c < 3; c++) {
    for (k = 0; k < 2; k++) {
      double zi = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((i) + 2 * (a))))]))[0];
      double ti = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((i) + 2 * (a))))]))[1];
      double zj = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[0];
      double tj = (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[1];
      (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[0] = xi * zj - yi * tj - xj * zi + yj * ti;
      (&((r)[2 * ((k) + 2 * ((c) + 3 * ((j) + 2 * (b))))]))[1] = xi * tj + yi * zj - xj * ti - yj * zi;
    }
  }
}
```