llvm-svn: 90134

llvm-svn: 90133

llvm-svn: 84597

 - The world needs better C++ refactoring tools, can I get an Amen!?

llvm-svn: 79843

llvm-svn: 76962

simplification.
 - NFC

llvm-svn: 76789

Get rid of the global CFGOnly flag by threading a ShortNames parameters through the GraphViz rendering code.
Update other uses in the codebase for this change.

llvm-svn: 74084

llvm-svn: 64340

and into the ScheduleDAGInstrs class, so that they don't get
destructed and re-constructed for each block. This fixes a
compile-time hot spot in the post-pass scheduler.

To help facilitate this, tidy and do some minor reorganization
in the scheduler constructor functions.

llvm-svn: 62275

llvm-svn: 61065

less mysterious.

llvm-svn: 59782

is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.

llvm-svn: 59676