llvm-svn: 3846

routines supporting machine code optimization.
Also added method MachineInstrInfo::getNOPOpCode().

llvm-svn: 3845

llvm-svn: 3843

than #available regs, compute the sum excluding duplicates and if that
is less than #regs, go ahead and coalesce.
Add method IGNode::getCombinedDegree to count excluding duplicates.

llvm-svn: 3842

llvm-svn: 3840

llvm-svn: 3839

Original logs for PreSelection.cpp:

  revision 1.2
  date: 2002/09/17 23:50:32;  author: lattner;  state: Exp;  lines: +1 -3
  Don't put default parameter values into .cpp files, it breaks 3.x compilers

  revision 1.1
  date: 2002/09/16 15:31:13;  author: vadve;  state: Exp;
  New preselection pass that specializes LLVM code for a target machine,
  while remaining in legal portable LLVM form and preserving type
  information and type safety.

llvm-svn: 3838

library.  This speeds debug builds up significantly.

llvm-svn: 3826

it was possible for the passmanager to continue running passes after the
verifier even if the module was not well formed.

llvm-svn: 3820

llvm-svn: 3809

llvm-svn: 3808

llvm-svn: 3802

llvm-svn: 3801

llvm-svn: 3799

llvm-svn: 3797

Thanks to Casey for finding it!

llvm-svn: 3783

llvm-svn: 3778

llvm-svn: 3777

never complained about this.

llvm-svn: 3774

llvm-svn: 3772

ilist:104: failed assertion `Traits::getNext(NodePtr) != 0 && "Dereferencing end()!"'

llvm-svn: 3768

llvm-svn: 3763

function -- DecomposeArrayRef(GetElementPtrInst* GEP) -- that can
be invoked on a single instruction at a time.

llvm-svn: 3755

llvm-svn: 3744

constants).  Useful for target-dependent LLVM transformations like
Preselection.

llvm-svn: 3743

constructors so passes can be inserted by TargetMachine.cpp.

llvm-svn: 3742

TargetMachine.cpp, since it is entirely machine-independent.
Also, add options to disable optional back-end passes (preselection and
instr. scheduling).

llvm-svn: 3740

llvm-svn: 3739

while remaining in legal portable LLVM form and preserving type
information and type safety.

llvm-svn: 3738

llvm-svn: 3737

base address of the relevant region (instead of assuming that each region
is maximally aligned).

llvm-svn: 3736

introduced by InstrSelection.

llvm-svn: 3735

llvm-svn: 3734

llvm-svn: 3733

llvm-svn: 3732

are now longs and not unsigned ints.

llvm-svn: 3731

llvm-svn: 3726

here.

llvm-svn: 3725

debug output.

llvm-svn: 3724

llvm-svn: 3723