Radar 8031193.

llvm-svn: 106582

during test runs.

llvm-svn: 106577

llvm-svn: 106576

llvm-svn: 106575

llvm-svn: 106574

llvm-svn: 106573

a toplevel 'defm', make sure to properly resolve references.

llvm-svn: 106570

llvm-svn: 106569

llvm-svn: 106563

llvm-svn: 106562

Reapply Bob's patch.

llvm-svn: 106560

llvm-svn: 106557

llvm-svn: 106556

into a utility routine, teach it how to update MachineLoopInfo, and
make use of it in MachineLICM to split critical edges on demand.

llvm-svn: 106555

Measurements show that it does not speed up coalescing, so there is no reason
the keep the added complexity around.

Also clean out some unused methods and static functions.

llvm-svn: 106548

getLoopPreheader into a separate function, for clients which don't
require a proper preheader.

llvm-svn: 106543

llvm-svn: 106542

llvm-svn: 106539

llvm-svn: 106538

constant operands.

llvm-svn: 106537

llvm-svn: 106529

llvm-svn: 106528

--- Reverse-merging r106508 into '.':
U    lib/Transforms/Utils/CloneModule.cpp

llvm-svn: 106521

kill and dead flags will end up on.

llvm-svn: 106520

getNamedMetadata().

llvm-svn: 106518

llvm-svn: 106517

llvm-svn: 106516

llvm-svn: 106515

llvm-svn: 106513

in addition to the kill flags.

llvm-svn: 106512

llvm-svn: 106508

llvm-svn: 106505

but it will cover uses of blockaddress that are actually in a function.

llvm-svn: 106502

rolling our own.

llvm-svn: 106501

llvm-svn: 106500

llvm-svn: 106499

llvm-svn: 106498

opportunities. For example, this lets it emit this:

   movq (%rax), %rcx
   addq %rdx, %rcx

instead of this:

   movq %rdx, %rcx
   addq (%rax), %rcx

in the case where %rdx has subsequent uses. It's the same number
of instructions, and usually the same encoding size on x86, but
it appears faster, and in general, it may allow better scheduling
for the load.

llvm-svn: 106493

llvm-svn: 106486

Radar 8104310.

llvm-svn: 106484