[PATCH] D23384: Use a byte array as an internal buffer of BitVector.

[bryant via llvm-commits]

bryant added inline comments.

================
Comment at: include/llvm/ADT/BitVector.h:480
@@ +479,3 @@
+    return sys::getSwappedBytes(W);
+#endif
+    return W;
----------------
ruiu wrote:
> ruiu wrote:
> > I used getSwappedBytes instead.
> How does it work? What is `WW`?
typo. i meant `W`. as for how it works:

```
  explicit packed_endian_specific_integral(value_type val) { *this = val; }

  operator value_type() const {
    return endian::read<value_type, endian, alignment>(
      (const void*)Value.buffer);
  }
```


https://reviews.llvm.org/D23384