llvm-svn: 131057

llvm-svn: 131019

 - New isDefined() function checks for deletedness
 - isThisDeclarationADefinition checks for deletedness
 - New doesThisDeclarationHaveABody() does what
   isThisDeclarationADefinition() used to do
 - The IsDeleted bit is not propagated across redeclarations
 - isDeleted() now checks the canoncial declaration
 - New isDeletedAsWritten() does what it says on the tin.
 - isUserProvided() now correct (thanks Richard!)

This fixes the bug that we weren't catching

void foo() = delete;
void foo() {}

as being a redefinition.

llvm-svn: 131013

Don't emit nsw flags for vector operations; there's basically no benefit, and a lot of downside (like PR9850, which is about clang's xmmintrin.h making an unexpected transformation on an expression involving _mm_add_epi32).

llvm-svn: 131000

Add an implementation of thunks for varargs methods.  The implementation is a bit messy, but it is correct as long as the method in question doesn't use indirect gotos.  A couple of possible alternative implementations are outlined in FIXME's in this patch. rdar://problem/8077308 .

llvm-svn: 130993

This enables incremental codegen, where the initializer array can be removed from the module, such that only new initializers will be emitted and run.

llvm-svn: 130986

// rdar://9362887

llvm-svn: 130956

llvm-svn: 130953

llvm-svn: 130929

foo.pic.gcno instead of foo.gcno.

llvm-svn: 130899

Ivar offsets for synthesized ivars are wrong, which could end up with a large
number of dirty pages because of ivar fixups at runtime. When we pack all of the
synthesized ivars into the same section, it limits the number of dirty pages
created. Place them in the "__DATA,__objc_ivar" section.
<rdar://problem/9374905>

llvm-svn: 130870

llvm-svn: 130866

llvm-svn: 130864

llvm-svn: 130830

the body of a delegating constructor call.

This means that the delegating constructor implementation should be
complete and correct, though there are some rough edges (diagnostic
quality with the cycle detection and using a deleted destructor).

llvm-svn: 130803

structs. // rdar://8823265

llvm-svn: 130783

Material bugfixes to come this afternoon.

llvm-svn: 130782

llvm-svn: 130736

Do not try to get mangled name of block helpers. Apply a stopgap measure to fix SingleSource/UnitTests/block-copied-in-cxxobj compile time crash.

llvm-svn: 130734

llvm-svn: 130719

Skip extra copy from aggregate where it isn't necessary; rdar://problem/8139919 .  This shouldn't make much of a difference at -O3, but should substantially reduce the number of generated memcpy's at -O0.

llvm-svn: 130717

Switch CallArgList from an std::pair to a new CallArg struct (which will eventually gain more members). Working towards modifying call emission to avoid unnecessary copies.

llvm-svn: 130700

llvm-svn: 130699

llvm-svn: 130696

Devang, can we remove this call entirely? If I try that, "make check" passes
but the call has a side-effect of ensuring that the block's context exists in
the debug info. getContextDescriptor() is used in a void context for that side-
effect elsewhere in this file. Please take a look!

llvm-svn: 130679

llvm-svn: 130674

functionality change.

llvm-svn: 130673

functionality change.

llvm-svn: 130672

As far as I know, this implementation is complete but might be missing a
few optimizations. Exceptions and virtual bases are handled correctly.

Because I'm an optimist, the web page has appropriately been updated. If
I'm wrong, feel free to downgrade its support categories.

llvm-svn: 130642

llvm-svn: 130616

llvm-svn: 130561

Radar 9333566.  Patch by Chad Rosier!

llvm-svn: 130554

llvm-svn: 130550

rhs when its 'forwarding' pointer may be modified 
in rhs evaluation as result of call to Block_copy.
// rdar://9309454

llvm-svn: 130545

llvm-svn: 130500

// rdar://8823265

llvm-svn: 130458

-C++ objects with user-declared constructor don't need zero'ing.
-We can zero-initialize arrays of C++ objects in "bulk" now, in which case don't zero-initialize each object again.

llvm-svn: 130453

// rdar://8823265 - wip.

llvm-svn: 130451

regression in mason.  rdar://problem/7662569

llvm-svn: 130444

llvm-svn: 130427