user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<branchfree_search8_prefetch>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %rdi,0x48(%rsp)
  mov    %edx,0x38(%rsp)
  mov    %ecx,0x3c(%rsp)
  mov    %r8d,0x40(%rsp)
  mov    %r9d,0x44(%rsp)
  test   %rsi,%rsi
  je     L13
  mov    %rdi,0x18(%rsp)
  mov    %rsi,%r10
  mov    %rdi,%rcx
  mov    %rdi,%r12
  mov    %rdi,0x10(%rsp)
  mov    %rdi,%r13
  mov    %rdi,%r14
  mov    %rdi,%r15
  mov    %rdi,0x8(%rsp)
  cmp    $0x1,%rsi
  je     L19
  nopl   (%rax)
L17:
  mov    %r10,%rbp
  mov    %r10,%rbx
  mov    %r10,%rax
  xor    %edx,%edx
  and    $0xfffffffffffffffc,%rbp
  shr    %rbx
  xor    %esi,%esi
  mov    %r10,0x30(%rsp)
  shr    $0x2,%rax
  lea    (%rcx,%rbp,1),%rdi
  mov    %rbx,0x20(%rsp)
  mov    %rcx,0x28(%rsp)
  mov    %rax,%rbx
  call   <__builtin_prefetch@plt>
  mov    0x28(%rsp),%rcx
  xor    %edx,%edx
  xor    %esi,%esi
  add    0x20(%rsp),%rbx
  shl    $0x2,%rbx
  lea    (%rcx,%rbx,1),%rdi
  call   <__builtin_prefetch@plt>
  mov    0x8(%rsp),%rsi
  xor    %edx,%edx
  lea    (%rsi,%rbp,1),%rdi
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  mov    0x8(%rsp),%rsi
  xor    %edx,%edx
  lea    (%rsi,%rbx,1),%rdi
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  mov    0x10(%rsp),%rax
  xor    %edx,%edx
  xor    %esi,%esi
  lea    (%rax,%rbp,1),%rdi
  call   <__builtin_prefetch@plt>
  mov    0x10(%rsp),%rax
  xor    %edx,%edx
  xor    %esi,%esi
  lea    (%rax,%rbx,1),%rdi
  call   <__builtin_prefetch@plt>
  mov    0x18(%rsp),%rcx
  xor    %edx,%edx
  xor    %esi,%esi
  lea    (%rcx,%rbp,1),%rdi
  call   <__builtin_prefetch@plt>
  mov    0x18(%rsp),%rcx
  xor    %edx,%edx
  xor    %esi,%esi
  lea    (%rcx,%rbx,1),%rdi
  call   <__builtin_prefetch@plt>
  lea    (%r15,%rbp,1),%rdi
  xor    %esi,%esi
  xor    %edx,%edx
  call   <__builtin_prefetch@plt>
  xor    %edx,%edx
  lea    (%r15,%rbx,1),%rdi
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  lea    (%r14,%rbp,1),%rdi
  xor    %edx,%edx
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  lea    (%r14,%rbx,1),%rdi
  xor    %edx,%edx
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  lea    0x0(%r13,%rbp,1),%rdi
  xor    %edx,%edx
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  lea    0x0(%r13,%rbx,1),%rdi
  xor    %edx,%edx
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  lea    (%r12,%rbp,1),%rdi
  xor    %edx,%edx
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  lea    (%r12,%rbx,1),%rdi
  xor    %edx,%edx
  xor    %esi,%esi
  call   <__builtin_prefetch@plt>
  mov    0x20(%rsp),%rbx
  mov    0x28(%rsp),%rcx
  mov    0x8(%rsp),%rsi
  mov    0x38(%rsp),%edi
  lea    0x0(,%rbx,4),%rax
  mov    0x30(%rsp),%r10
  lea    (%rcx,%rax,1),%rdx
  cmp    %edi,(%rdx)
  mov    0x3c(%rsp),%edi
  cmovl  %rdx,%rcx
  lea    (%rsi,%rax,1),%rdx
  cmp    %edi,(%rdx)
  mov    0x40(%rsp),%edi
  cmovge %rsi,%rdx
  mov    0x10(%rsp),%rsi
  mov    %rdx,0x8(%rsp)
  lea    (%rsi,%rax,1),%rdx
  cmp    %edi,(%rdx)
  mov    0x44(%rsp),%edi
  cmovge %rsi,%rdx
  mov    0x18(%rsp),%rsi
  mov    %rdx,0x10(%rsp)
  lea    (%rsi,%rax,1),%rdx
  cmp    %edi,(%rdx)
  cmovge %rsi,%rdx
  mov    0x90(%rsp),%esi
  mov    %rdx,0x18(%rsp)
  lea    (%r15,%rax,1),%rdx
  cmp    %esi,(%rdx)
  mov    0x98(%rsp),%esi
  cmovl  %rdx,%r15
  lea    (%r14,%rax,1),%rdx
  cmp    %esi,(%rdx)
  mov    0xa0(%rsp),%esi
  cmovl  %rdx,%r14
  lea    0x0(%r13,%rax,1),%rdx
  cmp    %esi,(%rdx)
  mov    0xa8(%rsp),%esi
  cmovl  %rdx,%r13
  add    %r12,%rax
  cmp    %esi,(%rax)
  cmovl  %rax,%r12
  sub    %rbx,%r10
  cmp    $0x1,%r10
  ja     L17
L19:
  mov    0x38(%rsp),%eax
  cmp    %eax,(%rcx)
  setl   %al
  mov    0x8(%rsp),%rbx
  mov    0xb0(%rsp),%rdx
  movzbl %al,%eax
  lea    (%rcx,%rax,4),%rax
  mov    0x48(%rsp),%rcx
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
  mov    0x3c(%rsp),%eax
  cmp    %eax,(%rbx)
  mov    0xb8(%rsp),%rdx
  setl   %al
  movzbl %al,%eax
  lea    (%rbx,%rax,4),%rax
  mov    0x10(%rsp),%rbx
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
  mov    0x40(%rsp),%eax
  cmp    %eax,(%rbx)
  mov    0xc0(%rsp),%rdx
  setl   %al
  movzbl %al,%eax
  lea    (%rbx,%rax,4),%rax
  mov    0x18(%rsp),%rbx
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
  mov    0x44(%rsp),%eax
  cmp    %eax,(%rbx)
  mov    0xc8(%rsp),%rdx
  setl   %al
  movzbl %al,%eax
  lea    (%rbx,%rax,4),%rax
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
  mov    0x90(%rsp),%eax
  cmp    %eax,(%r15)
  mov    0xd0(%rsp),%rdx
  setl   %al
  movzbl %al,%eax
  lea    (%r15,%rax,4),%rax
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
  mov    0x98(%rsp),%eax
  cmp    %eax,(%r14)
  mov    0xd8(%rsp),%rdx
  setl   %al
  movzbl %al,%eax
  lea    (%r14,%rax,4),%rax
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
  mov    0xa0(%rsp),%eax
  cmp    %eax,0x0(%r13)
  mov    0xe0(%rsp),%rdx
  setl   %al
  movzbl %al,%eax
  lea    0x0(%r13,%rax,4),%rax
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
  mov    0xa8(%rsp),%eax
  cmp    %eax,(%r12)
  mov    0xe8(%rsp),%rdx
  setl   %al
  movzbl %al,%eax
  lea    (%r12,%rax,4),%rax
  sub    %rcx,%rax
  sar    $0x2,%rax
  mov    %rax,(%rdx)
L13:
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void branchfree_search8_prefetch(int *source, size_t n, int target1, int target2, int target3, int target4, int target5, int target6, int target7, int target8, size_t *index1, size_t *index2, size_t *index3, size_t *index4, size_t *index5, size_t *index6, size_t *index7, size_t *index8) {
  int *base1 = source;
  int *base2 = source;
  int *base3 = source;
  int *base4 = source;
  int *base5 = source;
  int *base6 = source;
  int *base7 = source;
  int *base8 = source;
  if (n == 0)
    return;
  while (n > 1) {
    size_t half = n >> 1;
    __builtin_prefetch(base1 + (half >> 1), 0, 0);
    __builtin_prefetch(base1 + half + (half >> 1), 0, 0);
    __builtin_prefetch(base2 + (half >> 1), 0, 0);
    __builtin_prefetch(base2 + half + (half >> 1), 0, 0);
    __builtin_prefetch(base3 + (half >> 1), 0, 0);
    __builtin_prefetch(base3 + half + (half >> 1), 0, 0);
    __builtin_prefetch(base4 + (half >> 1), 0, 0);
    __builtin_prefetch(base4 + half + (half >> 1), 0, 0);
    __builtin_prefetch(base5 + (half >> 1), 0, 0);
    __builtin_prefetch(base5 + half + (half >> 1), 0, 0);
    __builtin_prefetch(base6 + (half >> 1), 0, 0);
    __builtin_prefetch(base6 + half + (half >> 1), 0, 0);
    __builtin_prefetch(base7 + (half >> 1), 0, 0);
    __builtin_prefetch(base7 + half + (half >> 1), 0, 0);
    __builtin_prefetch(base8 + (half >> 1), 0, 0);
    __builtin_prefetch(base8 + half + (half >> 1), 0, 0);
    base1 = (base1[half] < target1) ? &base1[half] : base1;
    base2 = (base2[half] < target2) ? &base2[half] : base2;
    base3 = (base3[half] < target3) ? &base3[half] : base3;
    base4 = (base4[half] < target4) ? &base4[half] : base4;
    base5 = (base5[half] < target5) ? &base5[half] : base5;
    base6 = (base6[half] < target6) ? &base6[half] : base6;
    base7 = (base7[half] < target7) ? &base7[half] : base7;
    base8 = (base8[half] < target8) ? &base8[half] : base8;
    n -= half;
  }
  *index1 = (*base1 < target1) + base1 - source;
  *index2 = (*base2 < target2) + base2 - source;
  *index3 = (*base3 < target3) + base3 - source;
  *index4 = (*base4 < target4) + base4 - source;
  *index5 = (*base5 < target5) + base5 - source;
  *index6 = (*base6 < target6) + base6 - source;
  *index7 = (*base7 < target7) + base7 - source;
  *index8 = (*base8 < target8) + base8 - source;
}
```