on Darwin to remove smarts from the isel.  This is currently disabled by
default (uncomment setOperationAction(ISD::GlobalAddress to enable it).
tblgen needs to become smarter about tglobaladdr nodes and bigger patterns
needed to be added to the .td file.  However, we can currently emit stuff like
this:  :)

        li r2, lo16(L_x$non_lazy_ptr)
        lis r3, ha16(L_x$non_lazy_ptr)
        lwzx r2, r3, r2

The obvious improvements will follow.

llvm-svn: 24390

llvm-svn: 24389

lis can be used for the high part.

llvm-svn: 24388

llvm-svn: 24387

instead of a globaladdress.  This has no effect on the generated code at all.

llvm-svn: 24386

llvm-svn: 24385

Evan Cheng.

llvm-svn: 24384

on patterns like "(set R32:$dst, (i32 imm:$src))"

llvm-svn: 24383

Patch contributed by Evan Cheng!

llvm-svn: 24382

llvm-svn: 24381

llvm-svn: 24378

llvm-svn: 24377

llvm-svn: 24376

llvm-svn: 24375

llvm-svn: 24374

llvm-svn: 24373

  type when it gets refined.  This allows us to hash on this crucial value.
* Fix several issues in TypeMap::RefineAbstractType that prevent it from
  handling hash values that change correctly.
* Define hashTypeStructure to not always return 0.  :)

This last part (which depends on the first two) speeds up gccld time on eon
from 3.78s to 2.75s with a release build (a 28% speedup!).  This resolves
PR474.

llvm-svn: 24372

by Evan Cheng!

llvm-svn: 24371

which branches to an absolute address.  This is required to support objc
direct dispatch.

llvm-svn: 24370

llvm-svn: 24366

llvm-svn: 24365

llvm-svn: 24364

functions into the .const section.  Whoops.

llvm-svn: 24363

llvm-svn: 24362

contributed by Evan Cheng.

llvm-svn: 24358

llvm-svn: 24357

llvm-svn: 24356

llvm-svn: 24355

llvm-svn: 24354

llvm-svn: 24353

that actually make sense.

llvm-svn: 24352

llvm-svn: 24351

llvm-svn: 24350

the default allocator uses mmap.

llvm-svn: 24349

llvm-svn: 24348

llvm-svn: 24347

llvm-svn: 24346

llvm-svn: 24345

and other MI overhead.

llvm-svn: 24344

on its template arguments into a base class so that the code isn't duplicated
5 times.

llvm-svn: 24343