simplified before we do this xform so that our cost model is accurate.

llvm-svn: 31864

llvm-svn: 31861

llvm-svn: 31857

This speeds up yacr2 by 7% on a core2.

llvm-svn: 31856

  if (cond) goto BB2
BB1:
    ...
    return;
BB2:
   ...

Move BB1 to the end of the function so that the code falls through in the
non-return case.  This has the effect of moving assert (and other no-return
call) bodies and return blocks out of loops.

llvm-svn: 31855

llvm-svn: 31822

llvm-svn: 31806

a #include of iostream.

llvm-svn: 31800

llvm-svn: 31789

llvm-svn: 31787

llvm-svn: 31783

LiveRanges, creates a new LiveInterval from them. The LiveRanges should
have existed already in another LiveInterval, but removed.

llvm-svn: 31780

llvm-svn: 31777

llvm-svn: 31773

llvm-svn: 31762

llvm-svn: 31761

llvm-svn: 31760

llvm-svn: 31759

CBE and interpreter.

llvm-svn: 31755

llvm-svn: 31753

llvm-svn: 31712

  will be inserted before these operands. If the opcode changes (by
  setOpcode), the implicit operands are updated as well.
- Added IsKill, IsDead fields to MachineOperand in preparation for changes
  that move kill / dead info to MachineInstr's.

llvm-svn: 31711

llvm-svn: 31686

llvm-svn: 31675

pass to explode.  This fixes a bunch of llc-beta failures on ppc last night.

llvm-svn: 31661

llvm-svn: 31660

llvm-svn: 31658

CodeGen/Generic/2006-11-10-DAGCombineMiscompile.ll and PPC gsm/toast

llvm-svn: 31644

llvm-svn: 31633

When forming a pre-indexed store, make sure ptr isn't the same or is a pred of value being stored. It would cause a cycle.

llvm-svn: 31631

llvm-svn: 31627

llvm-svn: 31598

llvm-svn: 31597

llvm-svn: 31596

llvm-svn: 31595

llvm-svn: 31594

llvm-svn: 31593

llvm-svn: 31584

llvm-svn: 31583

llvm-svn: 31569