will improve a lot this week hopefully), and a libgcc replacement
is ready once I wrangle lawyers.

llvm-svn: 65432

still remain.

llvm-svn: 65431

Sema::CheckAssignmentConstraints; not really visible, but the right 
thing to do.

llvm-svn: 65428

retain/release checker: Implement basic tracking of autorelease stack.  Next thing is to wire up pools with their contents.

llvm-svn: 65425

llvm-svn: 65424

llvm-svn: 65423

llvm-svn: 65422

llvm-svn: 65421

llvm-svn: 65420

llvm-svn: 65417

llvm-svn: 65414

make sure objc2's nonfragile abi is enacted for Leopard too.
add -fobjc-gc-only flag to the image_info symbol.

llvm-svn: 65413

Fix broken logic from my last commit.  Branches only occur at basic blocks that end with terminators.

llvm-svn: 65410

Fix diagnostic regression where the leak diagnostic could appear earlier in the path than the branches taken.

llvm-svn: 65407

llvm-svn: 65403

llvm-svn: 65401

string size as an argument.

llvm-svn: 65400

llvm-svn: 65399

llvm-svn: 65398

llvm-svn: 65397

llvm-svn: 65396

llvm-svn: 65395

to SemaInit.cpp, no functionality change.

llvm-svn: 65394

The big difference here is that (like string literal) @encode has 
array type, not pointer type.

llvm-svn: 65391

doesn't support Altivec intrisics nor is it likely that we're currently
generating all the right #defines, etc., for those architectures.

llvm-svn: 65390

llvm-svn: 65389

llvm-svn: 65388

llvm-svn: 65387

lookup to skip over names without linkage. This finishes
<rdar://problem/6127293>.

llvm-svn: 65386

external declarations to also support external variable
declarations. Unified the code for these two cases into two new
subroutines.

Note that we fail to diagnose cases like the one Neil pointed
out, where a visible non-external declaration hides an external
declaration by the same name. That will require some reshuffling of
name lookup.

llvm-svn: 65385

- For autorelease pool tracking, keep information about the stack of pools
  separate from their contents. Also, keep track of the number of times an
  autorelease pool will send the "release" message to an object when the pool is
  destroyed.
- Update CFRefCount::Update to return a new state instead of a reference count
  binding. This will allow us to implement more complicated semantics with
  autorelease pools.

llvm-svn: 65384

variables.
 - PR3657.

llvm-svn: 65381

 - Only handles cases with @try with no @catch blocks, and there are a
   number of problems with the implementation. Nevertheless, this is
   good enough to handled @synchronized correctly, and some other
   basic uses.

llvm-svn: 65378

 - Interface is more or less like multidelta.

 - Keep in mind it won't work very well; delta is O(N^2) frequently in
   practice. multidelta manages to work because it folds lines to keep
   N small, but this is just working on raw tokens. However, I have a
   fancy pants DAG based delta algorithm which will be the bees knees
   once I get it wired to clang.

llvm-svn: 65377

llvm-svn: 65376

llvm-svn: 65374

that declaration to global scope so that it can be found from other
scopes. This allows us to diagnose redeclaration errors for external
declarations across scopes. We also warn when name lookup finds such
an out-of-scope declaration. This is part of <rdar://problem/6127293>;
we'll also need to do the same thing for variables.

llvm-svn: 65373

llvm-svn: 65372

Pass the CodeGenModule object to GenerateBlockFunction, instead of *this (which will call the copy constructor). 

Also, since we're creating a new CodeGenFunction object for each block function, we don't need to clear the BreakContinueStack.

llvm-svn: 65371

llvm-svn: 65370