llvm-svn: 59677

is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.

llvm-svn: 59676

llvm-svn: 59655

right thing and promote the store to i8.

llvm-svn: 59648

Discourage (allocate last) use of x86_64 R12 and R13 due to their
longer instruction encodings.

llvm-svn: 59644

llvm-svn: 59637

llvm-svn: 59623

llvm-svn: 59621

ExpandIntegerOperand (LegalizeIntegerTypes.cpp) is needed which is yet to be reworked and submitted. 

llvm-svn: 59617

they trap on divide-by-zero, and this side effect is otherwise
unmodeled.

llvm-svn: 59551

llvm-svn: 59542

optimizations) into this wishlist.

llvm-svn: 59455

well as 2 files that use "Registrator"s. These are to be used by the
MSVC builds, as the Win32 linker does not include libs that are
otherwise unreferenced, even if global constructors in the lib have
side-effects.

Patch by Scott Graham!

llvm-svn: 59378

llvm-svn: 59344

llvm-svn: 59314

llvm-svn: 59311

registering XCoreTargetMachine.

llvm-svn: 59308

these operations if ladd/lsub are not available on the current
subtarget.

llvm-svn: 59305

bits in a word).

llvm-svn: 59296

llvm-svn: 59275

llvm-svn: 59274

(actually, code already all worked, only the comment
changed).  Use this to implement 'A' constraint on x86.
Fixes PR 1779.

llvm-svn: 59266

llvm-svn: 59258

llvm-svn: 59234

llvm-svn: 59231

llvm-svn: 59230

special-purpose hook to a new pass. Also, add check to see if any
x87 virtual registers are used, to avoid doing any work in the
common case that no x87 code is needed.

llvm-svn: 59190

llvm-svn: 59170

llvm-svn: 59117

llvm-svn: 59116

llvm-svn: 59109

llvm-svn: 59107

llvm-svn: 59104

llvm-svn: 59102

llvm-svn: 59100

llvm-svn: 59090

llvm-svn: 59088

llvm-svn: 59087

llvm-svn: 59084

llvm-svn: 59074