* Significantly improve DEBUG output
* Aggressively fold calls together if we inlined a graph that provides
  call nodes.
* Add a bailout if the current graph has over 200 call nodes in it, this is
  a really whacky case that should never happen.

llvm-svn: 4675

llvm-svn: 4668

This slows stuff down a bit, but it should get much better before it gets any
worse.

llvm-svn: 4666

llvm-svn: 4665

llvm-svn: 4664

llvm-svn: 4663

llvm-svn: 4661

llvm-svn: 4660

llvm-svn: 4659

llvm-svn: 4657

llvm-svn: 4656

llvm-svn: 4655

llvm-svn: 4654

llvm-svn: 4649

llvm-svn: 4648

llvm-svn: 4645

for example: 197.parser (64M->14M), 164.gzip (14M->2.7M).  The actual graphs
represented should not change at all.

llvm-svn: 4643

llvm-svn: 4640

the aux call sites should be copied

llvm-svn: 4639

llvm-svn: 4638

llvm-svn: 4637

llvm-svn: 4635

llvm-svn: 4634

  are marked DEAD.  This helped track down some bugs
- Fix a bunch of bugs where we were doing work on nodes after they became dead
- Add support for aux function call sites
- Add support for not cloning call sites

llvm-svn: 4633

llvm-svn: 4632

llvm-svn: 4630

llvm-svn: 4629

llvm-svn: 4628

llvm-svn: 4627

llvm-svn: 4622

  - This seems to dramatically improve many benchmarks, only slowing down
    gzip significantly.

llvm-svn: 4621

llvm-svn: 4619

llvm-svn: 4618

llvm-svn: 4609

llvm-svn: 4607

llvm-svn: 4606

llvm-svn: 4605

llvm-svn: 4603

llvm-svn: 4602

explanitory enum instead.

llvm-svn: 4600