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

llvm-svn: 55424

llvm-svn: 55423

64-bit registers from 16-bit and smaller memory locations, prefer
instructions that define the entire 64-bit register, to avoid
partial-register updates.

llvm-svn: 55422

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

verifier. See PR2711 for details.

llvm-svn: 55414

llvm-svn: 55413

llvm-svn: 55409

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

Put a heuristic in place to prevent GVN from falling into bad cases with massively complicated CFGs.
This speeds up a particular testcase from 12+ hours to 5 seconds with little perceptible loss of quality.

llvm-svn: 55391

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

llvm-svn: 55377

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: 55374

llvm-svn: 55373

assign it to a version of the xmm register with the regclass that matches its
type.  This fixes PR2715, a bug handling some crazy xpcom case in mozilla.

llvm-svn: 55358

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

llvm-svn: 55350

llvm-svn: 55348

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

binary primitives.

llvm-svn: 55343

llvm-svn: 55342