Make CGT defer to the ABI on all member pointer types.
This requires giving CGT a handle to the ABI.
It's way easier to make that work if we avoid lazily creating the ABI.
Make it so.

llvm-svn: 111786

far, this just #include's immintrin.h for compatibility.

llvm-svn: 111785

llvm-svn: 111783

llvm-svn: 111782

instantiating CXXConstructExpr expressions.

llvm-svn: 111780

implicitly-defined default constructor, zero-initialize the memory
before calling the default constructor. Previously, we would only
zero-initialize in the case of a trivial default constructor.

Also, simplify the hideous logic that determines when we have a
trivial default constructor and, therefore, don't need to emit any
call at all.

llvm-svn: 111779

llvm-svn: 111778

llvm-svn: 111777

pointers.  I find the resulting code to be substantially cleaner, and it
makes it very easy to use the same APIs for data member pointers (which I have
conscientiously avoided here), and it avoids a plethora of potential
inefficiencies due to excessive memory copying, but we'll have to see if it
actually works.

llvm-svn: 111776

the ABI code.  Implement correct semantics for these on ARM.

I believe this completes the implementation of member function pointers
on ARM.

I think I'm going to switch member function pointers over to be
non-aggregates while I have all this in mind.

llvm-svn: 111774

are handled.

llvm-svn: 111773

duplication between the constant and non-constant paths in all of this.

Implement ARM ABI semantics for member pointer constants and conversion.

llvm-svn: 111772

llvm-svn: 111771

Pretty much everything having to do with member pointers is ABI-specific.

llvm-svn: 111770

llvm-svn: 111769

llvm-svn: 111768

llvm-svn: 111767

llvm-svn: 111766

llvm-svn: 111765

llvm-svn: 111764

llvm-svn: 111763

llvm-svn: 111762

llvm-svn: 111761

llvm-svn: 111760

llvm-svn: 111759

llvm-svn: 111758

llvm-svn: 111757

llvm-svn: 111756

llvm-svn: 111755

llvm-svn: 111753

No functionality change.

llvm-svn: 111752

llvm-svn: 111751

llvm-svn: 111750

it deserves its own enumerator.  Obviously the implementations should
closely follow the Itanium ABI except in cases of divergence.

llvm-svn: 111749

llvm-svn: 111748

llvm-svn: 111747

llvm-svn: 111746

llvm-svn: 111745

llvm-svn: 111744

for Debug builds. I accidentally checked this in with my last
round of changes.

llvm-svn: 111743