llvm-svn: 48802

llvm-svn: 48739

With this pass, StrongPHIElim can compile very simple testcases correctly.  There's still a ways
to go before it's ready for prime time, though.

llvm-svn: 48719

the coalescer.  This doesn't really work, but gets us farther than
before.

llvm-svn: 48446

llvm-svn: 48278

feed the PHI instructions.  We'll need these IDs in order to update LiveIntervals properly.

llvm-svn: 48277

Move StrongPHIElimination after live interval analysis.  This will make things happier down the road.

llvm-svn: 48138

llvm-svn: 47996

findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.

llvm-svn: 47927

llvm-svn: 46263

llvm-svn: 46218

llvm-svn: 46217

MachineRegisterInfo.  Once all clients are switched over, the former will be going away.

llvm-svn: 45805

copies is made.

llvm-svn: 45799

llvm-svn: 45797

llvm-svn: 45791

Clean up StrongPHIElimination a bit, and add some more comments to the internal structures.  There's
still more work to do on this front.

llvm-svn: 45783

llvm-svn: 45775

llvm-svn: 45774

llvm-svn: 45773

llvm-svn: 45759

llvm-svn: 45738

llvm-svn: 45719

llvm-svn: 45718

that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467

e.g. MO.isMBB() instead of MO.isMachineBasicBlock().  I don't plan on 
switching everything over, so new clients should just start using the 
shorter names.

Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(), 
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.

llvm-svn: 45464

llvm-svn: 45418

llvm-svn: 45347

llvm-svn: 45334

llvm-svn: 45310

Remove critical edge breaking.  It won't be necessary as long as we are very careful when inserting copies.

llvm-svn: 45309

llvm-svn: 45070

llvm-svn: 45069

llvm-svn: 44987

Remove ugly and horrible code.  It's not necessary for correctness, and can be added back later if it causes code quality issues.

llvm-svn: 44986

interfered with other registers.  Seems like that might be a good thing to do. :-)

llvm-svn: 44902

llvm-svn: 44877

how the CodeGen machinery works.

llvm-svn: 44786

interference.

llvm-svn: 44064

llvm-svn: 44063