before inlining their graphs into a function.  To support this,
added flags to CloneFlags to strip/keep Mod/Ref bits.

llvm-svn: 4836

llvm-svn: 4831

Add structure padding optimizations

llvm-svn: 4749

llvm-svn: 4748

llvm-svn: 4747

their source function

llvm-svn: 4723

llvm-svn: 4722

For now, this just computes the #indirect call sites and
the avg. #callees per indirect call site (actually it prints
both totals and the average is their ratio).

llvm-svn: 4705

llvm-svn: 4701

 * The globals vector was getting broken and unsorted, this caused vortex
   to get badly pessimized
 * Node offset handling was being handled really poorly, and in particular
   we were not merging types with offsets right.  This causes several graphs
   to be non-merged.

llvm-svn: 4699

llvm-svn: 4696

llvm-svn: 4695

the algorithm instead of hand coded depth first iteration

llvm-svn: 4694

llvm-svn: 4690

death when handling moderately sized SCC's, but what can you do

llvm-svn: 4689

llvm-svn: 4688

llvm-svn: 4687

llvm-svn: 4683

* Implement the first step of the Globals graph: Deleting nodes from function
  graphs.  In practice, these nodes need to be moved to the globals graph, but
  this will be taken care of later.  Note that the graphs computed right now are
  not strictly correct!

llvm-svn: 4681

llvm-svn: 4678

llvm-svn: 4677

* 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

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: 4648

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: 4635

llvm-svn: 4634