llvm-svn: 5871

llvm-svn: 5859

look nicer and removed useless stuff.

Also renamed a few variables, moved them into namespaces, converted outputting
to a file into a print to std::cerr with a DEBUG() guard, as all passes should
do anyway.

No functional changes have been made. However, this code now compiles.

llvm-svn: 5769

* Lines must be wrapped at 80 chars. This is a hard limit.
* Consistent style on functions, braces, if, for, etc. Code must be readable.

No functional changes have been made, even though I added a new typedef.

llvm-svn: 5768

llvm-svn: 5764

llvm-svn: 5755

llvm-svn: 5329

llvm-svn: 5326

llvm-svn: 5322

llvm-svn: 5321

* Fix calculation of frame offsets when there is an offset.

llvm-svn: 5318

llvm-svn: 5317

llvm-svn: 5314

llvm-svn: 5312

llvm-svn: 5311

llvm-svn: 5310

llvm-svn: 5309

llvm-svn: 5307

llvm-svn: 5306

llvm-svn: 5303

llvm-svn: 5302

llvm-svn: 5301

llvm-svn: 5298

llvm-svn: 5293

llvm-svn: 5284

llvm-svn: 5282

llvm-svn: 5272

llvm-svn: 5262

llvm-svn: 5220

* Convert to use PHIElimination pass
* Don't spill values which have just been reloaded (big win reducing spills)
* Add experimental support for eliminating spills before TwoAddress
  instructions.  It currently is broken so it is #ifdef'd out.
* Use new "is terminator" flag on instructions instead of looking for
  branches and returns explicitly.

llvm-svn: 5219

llvm-svn: 5218

llvm-svn: 5217

Add helper methods for MachineFrameInfo

llvm-svn: 5216

llvm-svn: 5215

llvm-svn: 5204

Rename MachineCacheInfo to TargetCacheInfo

llvm-svn: 5203

llvm-svn: 5200

llvm-svn: 5199

of the abstract frame representation

llvm-svn: 5198

* Use new FunctionFrameInfo object to manage stack slots instead of doing
  it directly
* Adjust to new MRegisterInfo API
* Don't take a TM as a ctor argument
* Don't keep track of which callee saved registers are modified
* Don't emit prolog/epilog code or spill/restore code for callee saved regs
* Use new allocation_order_begin/end iterators to simplify dramatically the
  logic for picking registers to allocate
* Machine PHI nodes can no longer contain constant arguments

* Use a bitvector to keep track of registers used instead of a set
* Fix problem where explicitly referenced registers would be added to
  regsused set and never removed

llvm-svn: 5196