methods.

llvm-svn: 111804

active C++ ABI as a raw string, we store it as an enum. This should improve
performance somewhat.

And yes, this time, I started from a clean build directory, and
all the tests passed. :)

llvm-svn: 111507

llvm-svn: 111498

All it does right now is add space for two vtable pointers instead of one
when a class has both virtual methods and virtual bases. This is a requirement
of the Microsoft ABI, since it has separate vtables for methods and bases. Other
stuff will come up over time, but we'll cross those bridges when we get to
them.

llvm-svn: 111493

Now all classes derived from Attr are generated from TableGen.
Additionally, Attr* is no longer its own linked list; SmallVectors or
Attr* are used. The accompanying LLVM commit contains the updates to
TableGen necessary for this.

Some other notes about newly-generated attribute classes:

 - The constructor arguments are a SourceLocation and a Context&,
   followed by the attributes arguments in the order that they were
   defined in Attr.td

 - Every argument in Attr.td has an appropriate accessor named getFoo,
   and there are sometimes a few extra ones (such as to get the length
   of a variadic argument).

Additionally, specific_attr_iterator has been introduced, which will
iterate over an AttrVec, but only over attributes of a certain type. It
can be accessed through either Decl::specific_attr_begin/end or
the global functions of the same name.

llvm-svn: 111455

llvm-svn: 111314

llvm-svn: 111101

llvm-svn: 111087

with bit-fields.

llvm-svn: 107185

there's an explicit guard on isPolymorphic, and virtual bases don't affect the
key function calculation.  This allows people to call
ASTContext::getKeyFunction on arbitrary classes.

llvm-svn: 107143

llvm-svn: 105920

Implement part of the EmptySubobjectMap optimization described in PR6998. We still need to do this for bases.

llvm-svn: 105919

llvm-svn: 105628

When checking whether we can place a base subobject at an offset, we don't need to go past the highest offset that's known to contain an empty base subobject.

llvm-svn: 105611

llvm-svn: 105608

llvm-svn: 105162

Turn on the new empty base subobject tracking code. It's a bit faster than the previous code. However, it still has quadratic performance, something which I intend to fix shortly in a subsequent patch.

llvm-svn: 105161

llvm-svn: 105114

llvm-svn: 105113

llvm-svn: 105112

Rework the way virtual primary bases are added when laying out classes. Instead of doing it as a separate step, we now use the BaseSubobjectInfo and use it when laying out the bases. This fixes a bug where we would either not add a primary virtual base at all, or add it at the wrong offset.

llvm-svn: 105110

llvm-svn: 105104

Change RecordLayoutBuilder::LayoutNonVirtualBase to take a BaseSubobjectInfo. No functionality change.

llvm-svn: 105103

Move computing the base subobject info for a class into the RecordLayoutBuilder because we're going to need it to be able to correctly add offsets for primary virtual bases.

llvm-svn: 105102

llvm-svn: 105007

llvm-svn: 105002

llvm-svn: 104861

 - Docs are fairly sketchy, if someone wants to pore through gcc to look for
   holes I'd appreciate any failing test cases!

llvm-svn: 104809

llvm-svn: 104808

llvm-svn: 104801

llvm-svn: 104795

llvm-svn: 104787

llvm-svn: 104702

llvm-svn: 104701

llvm-svn: 104700

llvm-svn: 104695

llvm-svn: 104693

llvm-svn: 104688

llvm-svn: 104686

llvm-svn: 104683