code a bit

llvm-svn: 4493

llvm-svn: 4492

* Shift amount is always guaranteed to be 8 bits

llvm-svn: 4491

llvm-svn: 4490

llvm-svn: 4489

nodes in the graph are memory objects, which is very nice.  This also greatly
reduces the size and memory footprint for DSGraphs.  For example, the local
DSGraph for llu went from 65 to 13 nodes with this change.  As a side bonus,
dot seems to lay out the graphs slightly better too.  :)

llvm-svn: 4488

* Allow DSNodeHandle::mergeWith to work if a node handle isn't pointing to a node yet

llvm-svn: 4487

llvm-svn: 4486

mod/ref apis yet

llvm-svn: 4485

llvm-svn: 4484

llvm-svn: 4483

llvm-svn: 4482

llvm-svn: 4481

llvm-svn: 4480

llvm-svn: 4479

opcodes.

llvm-svn: 4478

 Add ISel::visitShiftInst() to instruction select shift instructions.
 Add a comment in visitAdd about how to do 64 bit adds.

X86InstrInfo.def: Add register-to-register move opcodes and shift opcodes.

llvm-svn: 4477

       larger one.
     * Handle the case where we are merging two nodes of different size better.

llvm-svn: 4476

llvm-svn: 4475

llvm-svn: 4474

llvm-svn: 4473

llvm-svn: 4472

Huge thanks go to Casey Carter for writing this fix, reassociate is now
reoperational!

llvm-svn: 4471

llvm-svn: 4470

after I removed annotations on MachineInstr for the CallDescriptor).

llvm-svn: 4469

because this is usually such a long list that it makes the output
useless anyway.

Disable checking exit status until we can find something more precise.
The exit status is too coarse-grain to be useful.

llvm-svn: 4468

llvm-svn: 4467

* DSGraph.h   contains DSGraph
* DSNode.h    contains DSNode (soon UDSNode and MDSNode)
* DSSupport.h contains DSCallsite, DSTypeRec, and DSNodeHandler

llvm-svn: 4466

be fixed, but we are getting much closer now.

    * Make DSNode::TypeRec a full fledged DSTypeRec type.
    * Add methods used to update and access the typerecords elements
    * Add methods to query if and to cause a node to be completely folded
    * DSGraph construction doesn't use the allocation type for anything at all,
      now nodes get their type information based on how they are used.
    * Fixed a bug with global value handling introduced in the last checkin
    * GEP support is now much better, arrays are handled correctly.  The array
      flag is now updated in type records.  There are still cases that are not
      handled yet (we do not detect pessimizations), but getting much closer.

llvm-svn: 4465

llvm-svn: 4464

llvm-svn: 4463

llvm-svn: 4462

llvm-svn: 4461

Thanks fly out to Casey Carter for this fix.

llvm-svn: 4460

Casey Carter.

llvm-svn: 4459

the data type.

llvm-svn: 4458

other dominance stuff.  Patch contributed by Casey Carter

llvm-svn: 4457

llvm-svn: 4456

llvm-svn: 4455

  * Load Implementation can cause unaligned memory accesses, which caused
    problems for sparc.
  * cast from pointer to pointer would zero the upper 32 bits of the pointer
    which obviously causes problems on 64 bit hosts.

llvm-svn: 4454