llvm-svn: 42502

llvm-svn: 42499

tracked BlkExpr information now maintained by the CFG class.

llvm-svn: 42498

expressions to IDs.  This is used by various dataflow analyses, but is
also useful for anyone querying a CFG to determine where an expression
is evaluated.

llvm-svn: 42495

Move ObjC decls to DeclObjC.h, a new AST header.
Update clients and add to project file.

llvm-svn: 42494

Relax unsafe use check. If there is one unconditional use inside the loop then it is safe to promote value even if there is another conditional use inside the loop.

llvm-svn: 42493

llvm-svn: 42492

with those in their base class. In response to clattner's 
September 30, 2007 12:54:49 AM PDT email.

llvm-svn: 42491

September 30, 2007 12:36:58 AM PDT and
September 30, 2007 12:50:05 AM PDT

llvm-svn: 42490

as a member function.  This function is no longer needed within the CFG
class, and logically belongs to the Stmt class as a predicate for a
Stmt instance.

llvm-svn: 42489

llvm-svn: 42488

llvm-svn: 42487

llvm-svn: 42486

llvm-svn: 42485

use APFloat for int-to-float/double; use
round-to-nearest for these (implementation-defined,
seems to match gcc).

llvm-svn: 42484

llvm-svn: 42483

And not super's super, either.

llvm-svn: 42482

method to StringMapEntry.  Steve, please use this to remove the
strlen calls in selector processing.

llvm-svn: 42481

llvm-svn: 42480

llvm-svn: 42479

llvm-svn: 42478

llvm-svn: 42477

Template-ize more of the DomTree internal implementation details.  Only the calculate() methods for DomTree and PostDomTree remain to be merged/template-ized.

llvm-svn: 42476

llvm-svn: 42475

llvm-svn: 42474

September 28, 2007 4:39:24 PM PDT
Please let me know if I missed anything.

llvm-svn: 42473

Avoiding passing a Sema object to these utility functions.

llvm-svn: 42472

previous patch to do the same for class name lookup using a hash table.

llvm-svn: 42471

llvm-svn: 42470

can be resolved to a function.  This is required
for codegen and used by instcombine.

llvm-svn: 42469

llvm-svn: 42467

This version enhances the previous patch to add root initialization
as discussed here:

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070910/053455.html

Collector gives its subclasses control over generic algorithms:

  unsigned NeededSafePoints; //< Bitmask of required safe points.
  bool CustomReadBarriers;   //< Default is to insert loads.
  bool CustomWriteBarriers;  //< Default is to insert stores.
  bool CustomRoots;          //< Default is to pass through to backend.
  bool InitRoots;            //< If set, roots are nulled during lowering.

It also has callbacks which collectors can hook:

  /// If any of the actions are set to Custom, this is expected to
  /// be overriden to create a transform to lower those actions to
  /// LLVM IR.
  virtual Pass *createCustomLoweringPass() const;

  /// beginAssembly/finishAssembly - Emit module metadata as
  /// assembly code.
  virtual void beginAssembly(Module &M, std::ostream &OS,
                             AsmPrinter &AP,
                             const TargetAsmInfo &TAI) const;
  virtual void finishAssembly(Module &M,
                              CollectorModuleMetadata &CMM,
                              std::ostream &OS, AsmPrinter &AP,
                              const TargetAsmInfo &TAI) const;  

Various other independent algorithms could be implemented, but were
not necessary for the initial two collectors. Some examples are
listed here:

http://llvm.org/docs/GarbageCollection.html#collector-algos

llvm-svn: 42466

llvm-svn: 42465

There is still an issue if doing ScopedLookup is an overkill and we can
just access the decl using the identifier.

llvm-svn: 42463

llvm-svn: 42462

llvm-svn: 42461

Resolving this by deleting vestigal etags remnants.

llvm-svn: 42460

llvm-svn: 42459

llvm-svn: 42458

llvm-svn: 42457