instruction.  Doing so breaks the FP stackifier, the alpha branch selector
the sparc fpmover.

This fixes PR1012 and CodeGen/X86/fp-stack-compare.ll

llvm-svn: 31876

First in a series of patches to convert SetCondInst into ICmpInst and
FCmpInst using only two opcodes and having the instructions contain their
predicate value. Nothing uses these classes yet. More patches to follow.

llvm-svn: 31867

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