llvm-svn: 55431

llvm-svn: 55430

Use TargetLowering to get the types in fast isel, which handles pointer types correctly for our purposes.

llvm-svn: 55428

just try to do the action and let the tablegen-generated code
determine if there is target-support for an operation.

llvm-svn: 55427

the details of materializing constants and other values into
registers, and make use of it in several places.

llvm-svn: 55426

llvm-svn: 55425

of two, and to not need a scratch std::vector. Also, compute the ordering
immediately in the result array, instead of in another scratch std::vector
that is copied to the result array.

llvm-svn: 55421

a scratch std::vector.

llvm-svn: 55420

which isn't needed anymore.

llvm-svn: 55419

llvm-svn: 55401

llvm-svn: 55400

llvm-svn: 55399

This simultaneously makes the code simpler and adds support for sext as well.

llvm-svn: 55398

llvm-svn: 55396

llvm-svn: 55394

llvm-svn: 55393

of two, and to not need a scratch std::vector. Also, use the
SelectionDAG's topological sort in LegalizeDAG instead of having
a separate implementation.

llvm-svn: 55389

llvm-svn: 55387

llvm-svn: 55384

llvm-svn: 55383

llvm-svn: 55381

allowing it to support the full range of conversions people might ask for in a correct manner.

llvm-svn: 55378

was inserted or not.  This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.

llvm-svn: 55375

llvm-svn: 55373

llvm-svn: 55355

RecyclingAllocator, but this change is needed for the nodes
to actually be recycled. This cuts SelectionDAG's memory
usage high-water-mark in half in some cases.

llvm-svn: 55351

Add a RetVT parameter to emitted FastISel methods, so that we will be able to pass the desired return
type down.  This is not currently used.

llvm-svn: 55345

llvm-svn: 55342

Expand bitcast support in fast isel to support bitcasts of non-constant values by emitting reg-reg copies.

llvm-svn: 55340

bitcast of constants in fast isel.

llvm-svn: 55325

simplify PseudoSourceValue printing a bit.  Unnest all of PseudoSourceValue.cpp from the llvm namespace.

llvm-svn: 55293

llvm-svn: 55291

llvm-svn: 55288

really nice if someone converted MachineFunction::print to raw_ostream.

llvm-svn: 55268

use raw_ostream instead of std::ostream.  Among other goodness,
this speeds up llvm-dis of kc++ with a release build from 0.85s
to 0.49s (88% faster).

Other interesting changes:
 1) This makes Value::print be non-virtual.
 2) AP[S]Int and ConstantRange can no longer print to ostream directly, 
    use raw_ostream instead.
 3) This fixes a bug in raw_os_ostream where it didn't flush itself 
    when destroyed.
 4) This adds a new SDNode::print method, instead of only allowing "dump".


A lot of APIs have both std::ostream and raw_ostream versions, it would
be useful to go through and systematically anihilate the std::ostream 
versions.

This passes dejagnu, but there may be minor fallout, plz let me know if
so and I'll fix it.

llvm-svn: 55263

llvm-svn: 55220

process up to a higher level. This allows FastISel to leverage
more of SelectionDAGISel's infastructure, such as updating Machine
PHI nodes.

Also, implement transitioning from SDISel back to FastISel in
the middle of a block, so it's now possible to go back and
forth. This allows FastISel to hand individual CallInsts and other
complicated things off to SDISel to handle, while handling the rest
of the block itself.

To help support this, reorganize the SelectionDAG class so that it
is allocated once and reused throughout a function, instead of
being completely reallocated for each block.

llvm-svn: 55219

i8* getelementptr. DAGCombine eliminates these, but this is
a fairly common case.

llvm-svn: 55214

llvm-svn: 55212

llvm-svn: 55205