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

llvm-svn: 55341

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

llvm-svn: 55340

Try approach to moving call address load inside of callseq_start. Now it's done during the preprocess of x86 isel. callseq_start's chain is changed to load's chain node; while load's chain is the last of callseq_start or the loads or copytoreg nodes inserted to move arguments to the right spot.

llvm-svn: 55338

generic stuff works fine.

Mark rewritten cmp-and-swap as not using CR1.

llvm-svn: 55336

bitcast of constants in fast isel.

llvm-svn: 55325

loads and stores but it's even more important for
it to store the right value.:(

llvm-svn: 55319

llvm-svn: 55318

instructions on having SSE2.

llvm-svn: 55317

llvm-svn: 55315

llvm-svn: 55301