user: 下面的汇编指令对应的C源代码是什么:

```asm
<replace>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %rdx,-0x48(%rbp)
  mov    -0x40(%rbp),%rdx
  mov    -0x38(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <countStrStr@plt>
  mov    %eax,-0x18(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x14(%rbp)
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x10(%rbp)
  mov    -0x48(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0xc(%rbp)
  mov    -0xc(%rbp),%eax
  cmp    -0x10(%rbp),%eax
  je     L33
  mov    -0xc(%rbp),%eax
  sub    -0x10(%rbp),%eax
  imul   -0x18(%rbp),%eax
  mov    %eax,%edx
  mov    -0x14(%rbp),%eax
  add    %edx,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jne    L87
  mov    $0x0,%eax
  jmp    L45
L87:
  mov    -0xc(%rbp),%eax
  sub    -0x10(%rbp),%eax
  imul   -0x18(%rbp),%eax
  mov    %eax,%edx
  mov    -0x14(%rbp),%eax
  add    %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  jmp    L135
L33:
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x8(%rbp)
L135:
  movl   $0x0,-0x24(%rbp)
  movl   $0x0,-0x1c(%rbp)
  jmp    L41
L101:
  movl   $0x0,-0x20(%rbp)
  jmp    L148
L146:
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x20(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x40(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  jne    L76
  addl   $0x1,-0x20(%rbp)
L148:
  mov    -0x20(%rbp),%eax
  cmp    -0x10(%rbp),%eax
  jl     L146
  jmp    L72
L76:
  nop
L72:
  mov    -0x20(%rbp),%eax
  cmp    -0x10(%rbp),%eax
  jne    L52
  movl   $0x0,-0x20(%rbp)
  jmp    L78
L158:
  mov    -0x20(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    -0x1c(%rbp),%ecx
  mov    -0x20(%rbp),%edx
  add    %ecx,%edx
  movslq %edx,%rcx
  mov    -0x8(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  addl   $0x1,-0x20(%rbp)
L78:
  mov    -0x20(%rbp),%eax
  cmp    -0xc(%rbp),%eax
  jl     L158
  mov    -0x10(%rbp),%eax
  sub    $0x1,%eax
  add    %eax,-0x24(%rbp)
  mov    -0xc(%rbp),%eax
  sub    $0x1,%eax
  add    %eax,-0x1c(%rbp)
  addl   $0x1,-0x18(%rbp)
  jmp    L108
L52:
  mov    -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    -0x1c(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x8(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
L108:
  addl   $0x1,-0x24(%rbp)
  addl   $0x1,-0x1c(%rbp)
L41:
  mov    -0x14(%rbp),%eax
  sub    -0x10(%rbp),%eax
  cmp    %eax,-0x24(%rbp)
  jle    L101
  mov    -0x14(%rbp),%eax
  sub    -0x10(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x24(%rbp)
  jmp    L19
L147:
  mov    -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    -0x1c(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x8(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  addl   $0x1,-0x24(%rbp)
  addl   $0x1,-0x1c(%rbp)
L19:
  mov    -0x24(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jl     L147
  mov    -0x1c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
L45:
  leave
  ret
```

assistant: ```c
char *replace(char *line, char *pattern, char *replace) {
  int i, j, k, llen, plen, rlen, count;
  char *newline;
  count = countStrStr(line, pattern);
  llen = strlen(line);
  plen = strlen(pattern);
  rlen = strlen(replace);
  if (rlen != plen) {
    newline = malloc(llen + count * (rlen - plen));
    if (!newline) {
      return NULL;
    }
    memset(newline, 0, llen + count * (rlen - plen));
  } else {
    newline = line;
  }
  for (i = 0, k = 0; i <= llen - plen; i++, k++) {
    for (j = 0; j < plen; j++) {
      if (line[i + j] != pattern[j]) {
        break;
      }
    }
    if (j == plen) {
      for (j = 0; j < rlen; j++) {
        newline[k + j] = replace[j];
      }
      i += plen - 1;
      k += rlen - 1;
      count++;
    } else {
      newline[k] = line[i];
    }
  }
  for (i = llen - plen + 1; i < llen; i++, k++) {
    newline[k] = line[i];
  }
  newline[k] = '\0';
  return newline;
}
```