llvm-svn: 108620

llvm-svn: 108618

llvm-svn: 108616

Still very much under development. Comments and fixes will be forthcoming.

(This commit includes some small tweaks to LiveIntervals & LoopInfo to support the splitter)

llvm-svn: 108615

llvm-svn: 108614

any command line paramater changed the register allocation produced by
PBQP.

Turns out variety is not the spice of life.

Fixed some comparators, added others. All good now.

llvm-svn: 108613

llvm-svn: 108612

llvm-svn: 108611

constant replacement which was botching its handling of
types.  Use of getType() instead of getRawType() was causing
the type map in constant folding to be updated wrong.

llvm-svn: 108610

llvm-svn: 108609

instruction for non-constant operands. This includes the case referenced
in the README.txt regarding a bitfield copy.

llvm-svn: 108608

llvm-svn: 108607

llvm-svn: 108606

Also, add constructor function for creating AsmParser instances.

llvm-svn: 108604

llvm-svn: 108603

llvm-svn: 108601

llvm-svn: 108588

information.

No functional change yet.

llvm-svn: 108583

stack realignment on ARM.

Also check for function attributes as we do on X86 as well as
make explicit that we're checking can as well as needs in this function.

llvm-svn: 108582

needsStackRealignment is currently checking the can conditions as well.

llvm-svn: 108581

llvm-svn: 108571

and a combine pattern to use it for setting a bit-field to a constant
value. More to come for non-constant stores.

llvm-svn: 108570

llvm-svn: 108569

  void foo() { __builtin_unreachable(); }

It will output the following on Darwin X86:

_func1:
Leh_func_begin0:
        pushq %rbp
Ltmp0:
        movq %rsp, %rbp
Ltmp1:
Leh_func_end0:

This prolog adds a new Call Frame Information (CFI) row to the FDE with an
address that is not within the address range of the code it describes -- part is
equal to the end of the function -- and therefore results in an invalid EH
frame. If we emit a nop in this situation, then the CFI row is now within the
address range.

llvm-svn: 108568

llvm-svn: 108567

llvm-svn: 108566

llvm-svn: 108565

Thumb2ITBlockPass.

llvm-svn: 108564

thus is a much more meaningful name.

llvm-svn: 108563

The isLive() method can read uninitialized memory, but it still gives correct
results.

llvm-svn: 108561

llvm-svn: 108560

llvm-svn: 108556

PowerPC.

llvm-svn: 108555

so there is no locking involved in type refinement.

llvm-svn: 108553

llvm-svn: 108549

llvm-svn: 108547

llvm-svn: 108545

code ids, not just some of them.

llvm-svn: 108543

operands.

Hopefully this fixes the llvm-gcc-powerpc-darwin9 buildbot. It really shouldn't
since missing memoperands should not affect correctness.

llvm-svn: 108540

a redundant loopsimplify run from the default -O2 sequence.

llvm-svn: 108539