llvm-svn: 53388

though that would be nice and make sense :).  Patch by Nathan Keynes!

llvm-svn: 53387

llvm-svn: 53386

llvm-svn: 53385

of all undefs into a single undef value.

llvm-svn: 53384

infinite recursion.  part of PR2529

llvm-svn: 53383

constants by element without caring how they are formed.

llvm-svn: 53381

it for PR2529

llvm-svn: 53380

- Replace use of std::map<std::string, ..> with StringMap. Replace use of std::map with DenseMap, std::set with SmallPtrSet. This results in minor speed up.
- Some code clean up.

llvm-svn: 53379

llvm-svn: 53378

makes their special-case checks of use_size() less beneficial,
so remove them. This eliminates all but one use of use_size(),
which is in AssignTopologicalOrder, which uses it only once for
each node, and so can reasonably afford to recompute it, as
this allows the UsesSize field of SDNode to be removed
altogether.

llvm-svn: 53377

of examining every operand of every user.

llvm-svn: 53374

getMemOperand function to be moved into the base class as well
and made non-virtual.

llvm-svn: 53372

constant pool, if relocation model is not static. This directly maps to
the way how GCC works.

llvm-svn: 53370

llvm-svn: 53369

llvm-svn: 53368

Loosen our check here.  Local regalloc only cares that the reg is used and def'd by the same instruction, but about the details of
the relationship.

llvm-svn: 53367

llvm-svn: 53365

I cannot test this target, let me know if it breaks!

llvm-svn: 53363

I cannot test this target, let me know if it breaks!

llvm-svn: 53362

class, and store IsVolatile and Alignment in a more compact form.
This makes AtomicSDNode slightly larger, but it shrinks LoadSDNode
and StoreSDNode, which are much more common and are the largest of
the SDNode subclasses. Also, this lets the isVolatile() and
getAlignment() accessors be non-virtual.

llvm-svn: 53361

llvm-svn: 53360

Don't use an expensive check for two-address-ness when we have the information sitting around to determine it much more quickly,
This speeds up the local register allocator from 0.37s to 0.31s on instcombine.

llvm-svn: 53359

is X86 ATT only.

llvm-svn: 53355

llvm-svn: 53354

applies to ppc Darwin only.

llvm-svn: 53353

llvm-svn: 53352

Keep RegAllocSimple in sync.

llvm-svn: 53351

llvm-svn: 53350

with RegAllocLocal.

llvm-svn: 53347

of having local variables duplicate it.

llvm-svn: 53346

with extra checks.

llvm-svn: 53344

llvm-svn: 53340

llvm-svn: 53333

llvm-svn: 53324

llvm-svn: 53323

llvm-svn: 53322

llvm-svn: 53321

llvm-svn: 53320

llvm-svn: 53319