tree 859b44339ba212ef7ad86dcc65417c0b6fd1ceff
parent eb7c6f3c49b4b3c2b01aeeed54bf5915fbf9b021
author Eli Friedman <eli.friedman@gmail.com> 1372279834 +0000
committer Eli Friedman <eli.friedman@gmail.com> 1372279834 +0000

Rewrite record layout for ms_struct structs.

The old implementation of ms_struct in RecordLayoutBuilder was a
complete mess: it depended on complicated conditionals which didn't
really reflect the underlying logic, and placed a burden on users of
the resulting RecordLayout. This commit rips out almost all of the
old code, and replaces it with simple checks in
RecordLayoutBuilder::LayoutBitField.

This commit also fixes <rdar://problem/14252115>, a bug where class
inheritance would cause us to lay out bitfields incorrectly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@185018 91177308-0d34-0410-b5e6-96231b3b80d8