llvm-svn: 42533

stdlib if it's beneath --prefix, and is libdir/ocaml otherwise.

If someone has a better way than this to test whether $B is a path
within $A, I'd love to hear it:

  if test "$A" \< "$B" -a "$B" \< "${A}~"

llvm-svn: 42532

llvm-svn: 42529

llvm-svn: 42528

llvm-svn: 42527

llvm-svn: 42526

llvm-svn: 42522

llvm-svn: 42521

llvm-svn: 42519

llvm-svn: 42517

If the user did not check out LLVM and request it to be built, it should be a build error. This relies on the user having a successful build of LLVM, but the tests will fail if they dont. 

llvm-svn: 42514

instructions reverse map.

llvm-svn: 42509

llvm-svn: 42508

SourceFiles list is fully filled in so that it sees all of the files.

llvm-svn: 42506

llvm-svn: 42505

llvm-svn: 42502

llvm-svn: 42499

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

llvm-svn: 42488

llvm-svn: 42487

llvm-svn: 42486

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

llvm-svn: 42480

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

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

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