llvm-svn: 99863

Flip the switch and use the new vtable layout code for everything. I've verified that this passes a self-host but I'll let the bots self host as well before removing the now dead code.

llvm-svn: 99861

When collecting virtual bases it's very important to use the canonical type of the base class. Otherwise, we might add the same virtual base class twice if the virtual base is an instantiated template. Fixes PR6251.

llvm-svn: 99829

llvm-svn: 99812

llvm-svn: 99729

llvm-svn: 99702

through the bases and fields of the definition of the class in which
the constructor is declared, rather than some other declaration of
that class.

llvm-svn: 99661

llvm-svn: 99555

llvm-svn: 99526

llvm-svn: 99448

EmitReferenceBindingToExpr() rather than assuming we have an
lvalue. This is just the lowest hanging fruit for PR6024, which still
requires a bit of work.

llvm-svn: 99447

implicit methods on explicit template instantiation definitions. As a
consequence, we should emit them at every use, even if we see a explicit
template instantiation declaration.

This is already the current behaviour, but it is good to test for that :-)

llvm-svn: 99443

Fixes PR6641.

llvm-svn: 99404

More vtable improvements. We now compute and keep track of all vtable related information which avoids computing the same vtable layout over and over.

llvm-svn: 99403

llvm-svn: 99381

llvm-svn: 99367

llvm-svn: 99363

llvm-svn: 99317

declaration.

llvm-svn: 99311

we see an specialization definition ever if we then see a extern template declaration.

llvm-svn: 99226

CXXExprWithTemporaries.

Not emitting the expression as an aggregate might be the right thing to do,
but is orthogonal. Emitting it as an scalar expression will still try to
create a temporary for the incomplete type of the CXXExprWithTemporaries and
fail.

llvm-svn: 99134

 - Disable RTTI.
 - Disable use of __cxa_atexit.
 - Disable unwind tables.
 - Enable freestanding mode.

Also, honor -fhosted correctly.

<rdar://problem/7515383> C++ support: -fapple-kext not honored

llvm-svn: 99041

 - So much typing, so little gain...

Also, rename the __cxx_global_initialization function just to match llvm-gcc.

llvm-svn: 99039

shadowing it in the GlobalDeclMap.  Eliminates the string-uniquing
requirement for mangled names, which should help C++ codegen times a little.
Forces us to do string lookups instead of pointer lookups, which might hurt
codegen times a little across the board.  We'll see how it plays out.

Removing the string-uniquing requirement implicitly fixes any bugs like
PR6635 which arose from the fact that we had multiple uniquing tables for
different kinds of identifiers.

llvm-svn: 99012

llvm-svn: 98799

Fixes PR6625.

llvm-svn: 98707

iterations of this patch gave explicit template instantiation
link-once ODR linkage, which permitted the back end to eliminate
unused symbols. Weak ODR linkage still requires the symbols to be
generated.

llvm-svn: 98441

llvm-svn: 98425

llvm-svn: 98424

llvm-svn: 98332

them). Fixes PR6578.

llvm-svn: 98328

llvm-svn: 98267

llvm-svn: 98254

llvm-svn: 98246

llvm-svn: 98191

llvm-svn: 98180

llvm-svn: 98177

llvm-svn: 98154

llvm-svn: 98140

Don't accidentally mark some functions in construction vtables as unused. Also land the test for a previous checkin, now that it's correct.

llvm-svn: 98139