user: 请从给定的汇编指令推导出C源代码:

```asm
<driver2>:
  endbr64
  push   %r15
  mov    $0x1e,%esi
  lea    D38(%rip),%rdi
  push   %r14
  push   %r13
  xor    %r13d,%r13d
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  mov    %r12d,%r15d
  push   %rbx
  sub    $0x2a8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x298(%rsp)
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0x4,%r11d
  mov    %r11,%r14
L65:
  test   %r15d,%r15d
  je     L191
L201:
  lea    0x50(%rsp),%r11
  lea    0x174(%rsp),%r12
  mov    %r14,%rax
  movl   $0x0,0x40(%rsp)
  mov    %r11,0x38(%rsp)
  mov    %r15d,%r14d
  mov    %rax,%r15
  mov    %r12,0x30(%rsp)
  movl   $0x0,0x4c(%rsp)
  mov    %r11,0x18(%rsp)
L35:
  mov    %r15d,%eax
  movl   $0x0,0xc(%rsp)
  mov    %r12,%r13
  and    $0x4,%eax
  mov    %r15d,0x14(%rsp)
  mov    %eax,0x44(%rsp)
  jmp    L245
  nopl   0x0(%rax,%rax,1)
L240:
  mov    0x48(%rsp),%edi
  test   %edi,%edi
  jne    L244
  test   %ecx,%ecx
  je     L124
  movb   $0x0,(%r12)
  test   $0x2,%cl
  jne    L185
L124:
  mov    0x18(%rsp),%rdi
  cmp    $0x8,%r15d
  jb     L246
  mov    %r15d,%ecx
  xor    %eax,%eax
  shr    $0x3,%ecx
  rep stos %rax,%es:(%rdi)
L246:
  mov    0x44(%rsp),%edx
  test   %edx,%edx
  je     L232
  movl   $0x0,(%rdi)
  add    $0x4,%rdi
L232:
  testb  $0x2,0x14(%rsp)
  je     L159
  xor    %eax,%eax
  add    $0x2,%rdi
  mov    %ax,-0x2(%rdi)
L159:
  testb  $0x1,0x14(%rsp)
  je     L202
  movb   $0x0,(%rdi)
L202:
  movzbl 0xc(%rsp),%ecx
  mov    %ebp,%eax
  mov    0x38(%rsp),%rbx
  mov    %ebp,%edx
  mov    0x18(%rsp),%rdi
  mov    %r13d,%esi
  mov    %r11d,0x2c(%rsp)
  shl    %cl,%eax
  movzbl 0x10(%rsp),%ecx
  mov    %r9d,0x28(%rsp)
  mov    %r8d,0x24(%rsp)
  sar    %cl,%edx
  mov    %r10d,0x20(%rsp)
  xor    %edx,%eax
  xor    %eax,(%rbx)
  mov    %r14d,%edx
  call   <hashlittle@plt>
  movzbl 0xc(%rsp),%ecx
  mov    %r13d,%esi
  mov    %r12,%rdi
  mov    %eax,%ebx
  lea    0x1(%rbp),%eax
  mov    %eax,%edx
  shl    %cl,%edx
  movzbl 0x10(%rsp),%ecx
  sar    %cl,%eax
  xor    %eax,%edx
  mov    0x30(%rsp),%rax
  xor    %edx,(%rax)
  mov    %r14d,%edx
  call   <hashlittle@plt>
  mov    0x20(%rsp),%r10d
  mov    0x28(%rsp),%r9d
  mov    %ebx,%edx
  mov    0x2c(%rsp),%r11d
  xor    %eax,%edx
  mov    0x24(%rsp),%r8d
  and    %ebx,%r10d
  and    %eax,%r9d
  not    %eax
  and    %edx,0x4(%rsp)
  and    %eax,%r11d
  mov    0x4(%rsp),%esi
  mov    %r10d,%eax
  not    %ebx
  or     %r9d,%eax
  and    %ebx,%r8d
  not    %edx
  and    %edx,0x8(%rsp)
  or     %esi,%eax
  mov    0x8(%rsp),%edi
  or     %r8d,%eax
  or     %r11d,%eax
  or     %edi,%eax
  jne    L11
  mov    %r12,%rax
  mov    %r14d,%r12d
  mov    %rax,%r14
  mov    0x40(%rsp),%eax
  cmp    %ebp,%eax
  cmovge %eax,%ebp
  mov    %ebp,0x40(%rsp)
  cmpl   $0x3c,0x40(%rsp)
  je     L107
L208:
  add    $0x1,%r12d
  cmp    $0x8,%r12d
  jne    L140
  mov    %r14,%rax
  addl   $0x1,0xc(%rsp)
  mov    %r13d,%r14d
  mov    %rax,%r13
  mov    0xc(%rsp),%eax
  cmp    $0x8,%eax
  je     L247
L245:
  mov    $0x8,%eax
  sub    0xc(%rsp),%eax
  mov    $0x1,%r12d
  mov    %eax,0x10(%rsp)
  mov    %r13,%rax
  mov    %r14d,%r13d
  mov    %rax,%r14
L140:
  mov    $0xffffffff,%r11d
  mov    %r15d,%eax
  xor    %ebp,%ebp
  movl   $0xffffffff,0x8(%rsp)
  and    $0x4,%eax
  mov    %r11d,0x4(%rsp)
  mov    $0xffffffff,%r9d
  mov    $0xffffffff,%r8d
  mov    %eax,0x48(%rsp)
  mov    %r14,%rax
  mov    $0xffffffff,%r10d
  mov    %r12d,%r14d
  mov    %rax,%r12
  nopl   0x0(%rax,%rax,1)
L27:
  mov    %r15d,%ecx
  cmp    $0x8,%r15d
  jb     L240
  lea    0x178(%rsp),%rdi
  mov    %r12,%rcx
  mov    %r15d,%eax
  movq   $0x0,(%r12)
  movq   $0x0,-0x8(%r12,%rax,1)
  sub    %rdi,%rcx
  xor    %eax,%eax
  add    %r15d,%ecx
  shr    $0x3,%ecx
  rep stos %rax,%es:(%rdi)
  jmp    L124
  nop
L11:
  add    $0x2,%ebp
  cmp    $0x3c,%ebp
  jne    L27
  mov    0x40(%rsp),%ebx
  mov    %r12,%rax
  mov    %r14d,%r12d
  mov    %r9d,0x28(%rsp)
  mov    %rax,%r14
  mov    $0x3c,%eax
  mov    %r8d,0x24(%rsp)
  mov    %r11d,%ebp
  cmp    %eax,%ebx
  lea    D54(%rip),%rdi
  mov    %r10d,0x20(%rsp)
  cmovge %ebx,%eax
  mov    %eax,0x40(%rsp)
  xor    %eax,%eax
  call   <printf@plt>
  sub    $0x8,%rsp
  lea    D56(%rip),%rdi
  xor    %eax,%eax
  push   %rbp
  mov    0x38(%rsp),%r9d
  mov    0x34(%rsp),%r8d
  mov    0x30(%rsp),%ecx
  mov    0x18(%rsp),%edx
  mov    0x14(%rsp),%esi
  call   <printf@plt>
  mov    0x1c(%rsp),%edx
  mov    0x5c(%rsp),%esi
  mov    %r13d,%r8d
  xor    %eax,%eax
  mov    %r12d,%ecx
  lea    D32(%rip),%rdi
  call   <printf@plt>
  pop    %r8
  pop    %r9
  cmpl   $0x3c,0x40(%rsp)
  jne    L208
L107:
  mov    %r15,%r14
  mov    %r13d,%r15d
  mov    %r12d,%r13d
  add    $0x1,%r15d
  add    $0x4,%r14
  cmp    $0x46,%r15d
  jne    L65
L144:
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    0x298(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L22
  add    $0x2a8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L244:
  movl   $0x0,(%r12)
  movl   $0x0,-0x4(%r12,%rcx,1)
  jmp    L124
L247:
  mov    %r13,%rax
  addl   $0x1,0x4c(%rsp)
  mov    %r12d,%r13d
  mov    %rax,%r12
  mov    0x4c(%rsp),%eax
  addq   $0x4,0x38(%rsp)
  addq   $0x4,0x30(%rsp)
  cmp    %r14d,%eax
  jne    L35
  mov    %r15,%rax
  mov    %r14d,%r15d
  mov    %rax,%r14
  mov    0x40(%rsp),%eax
  cmp    $0x3b,%eax
  jg     L43
  sar    %eax
  mov    %r15d,%esi
  mov    %eax,%ebp
L186:
  mov    0xc(%rsp),%r13d
  lea    D57(%rip),%rdi
  xor    %eax,%eax
  mov    %r13d,%edx
  call   <printf@plt>
  mov    %ebp,%esi
  lea    D46(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
L43:
  add    $0x1,%r15d
  add    $0x4,%r14
  cmp    $0x46,%r15d
  je     L144
  test   %r15d,%r15d
  jne    L201
L191:
  mov    %r13d,0xc(%rsp)
  xor    %ebp,%ebp
  xor    %esi,%esi
  jmp    L186
L185:
  xor    %esi,%esi
  mov    %si,-0x2(%r12,%rcx,1)
  jmp    L124
L22:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D38
type_infered: string
name: extract_symbolic_data
arguments: data_label: D54
type_infered: string
name: extract_symbolic_data
arguments: data_label: D56
type_infered: string
name: extract_symbolic_data
arguments: data_label: D32
type_infered: string
name: extract_symbolic_data
arguments: data_label: D57
type_infered: string
name: extract_symbolic_data
arguments: data_label: D46
type_infered: string

tool: D38: No more than %d trials should ever be needed 


tool: D54: Some bit didn't change: 

tool: D56: %.8x %.8x %.8x %.8x %.8x %.8x  

tool: D32: i %d j %d m %d len %d


tool: D57: Mix success  %2d bytes  %2d initvals  

tool: D46: required  %d  trials


assistant: ```c
void driver2() {
  uint8_t qa[70 + 1], qb[70 + 2], *a = &qa[0], *b = &qb[1];
  uint32_t c[1], d[1], i = 0, j = 0, k, l, m = 0, z;
  uint32_t e[1], f[1], g[1], h[1];
  uint32_t x[1], y[1];
  uint32_t hlen;
  printf("No more than %d trials should ever be needed \n", 60 / 2);
  for (hlen = 0; hlen < 70; ++hlen) {
    z = 0;
    for (i = 0; i < hlen; ++i) {
      for (j = 0; j < 8; ++j) {
        for (m = 1; m < 8; ++m) {
          for (l = 0; l < 1; ++l)
            e[l] = f[l] = g[l] = h[l] = x[l] = y[l] = ~((uint32_t)0);
          for (k = 0; k < 60; k += 2) {
            uint32_t finished = 1;
            for (l = 0; l < hlen + 1; ++l) {
              a[l] = b[l] = (uint8_t)0;
            }
            a[i] ^= (k << j);
            a[i] ^= (k >> (8 - j));
            c[0] = hashlittle(a, hlen, m);
            b[i] ^= ((k + 1) << j);
            b[i] ^= ((k + 1) >> (8 - j));
            d[0] = hashlittle(b, hlen, m);
            for (l = 0; l < 1; ++l) {
              e[l] &= (c[l] ^ d[l]);
              f[l] &= ~(c[l] ^ d[l]);
              g[l] &= c[l];
              h[l] &= ~c[l];
              x[l] &= d[l];
              y[l] &= ~d[l];
              if (e[l] | f[l] | g[l] | h[l] | x[l] | y[l])
                finished = 0;
            }
            if (finished)
              break;
          }
          if (k > z)
            z = k;
          if (k == 60) {
            printf("Some bit didn't change: ");
            printf("%.8x %.8x %.8x %.8x %.8x %.8x  ", e[0], f[0], g[0], h[0], x[0], y[0]);
            printf("i %d j %d m %d len %d\n", i, j, m, hlen);
          }
          if (z == 60)
            goto done;
        }
      }
    }
  done:
    if (z < 60) {
      printf("Mix success  %2d bytes  %2d initvals  ", i, m);
      printf("required  %d  trials\n", z / 2);
    }
  }
  printf("\n");
}
```