extend it a bit, and make use of it in all schedulers, to
ensure consistent checking.

llvm-svn: 59689

llvm-svn: 59688

llvm-svn: 59681

and CreateClone don't add any extra value.

llvm-svn: 59679

llvm-svn: 59678

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

a virtual method of SelectionDAG.

llvm-svn: 59667

dump in terms of it.

llvm-svn: 59665

llvm-svn: 59662

Do not use separate utility to walk all instructions and remove dead dbg intrinsics. Let instcombiner do this job.

llvm-svn: 59659

llvm-svn: 59658

If there are two consecutive llvm.dbg.stoppoint calls then
it is likely that the optimizer deleted code in between these
two intrinsics. Keep only the last llvm.dbg.stoppoint in this case.

llvm-svn: 59657

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: 59642

configured with llvm-gcc.

llvm-svn: 59641

problems for example when LLVM is built with --with-extra-options=-m64
and as defaults to x86-32 mode.

llvm-svn: 59640

llvm-svn: 59637

llvm-svn: 59629

llvm-svn: 59623

llvm-svn: 59621

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

llvm-svn: 59617

llvm-svn: 59614

llvm-svn: 59612

llvm-svn: 59595

- Rewrite the sentence to make it look as if English is my first language.

llvm-svn: 59592

llvm-svn: 59587

llvm-svn: 59586

 - Only focusing on llvm_gcc_c for now, eventually this needs to be
   refactored so it can be shared via all the gcc-like tools.

llvm-svn: 59582

llvm-svn: 59581

llvm-svn: 59580

llvm-svn: 59577

llvm-svn: 59576

llvm-svn: 59570

llvm-svn: 59569

systems. BUILD_32_BITS option renamed to LLVM_BUILD_32_BITS.

llvm-svn: 59568

print in the correct order.

llvm-svn: 59567

llvm-svn: 59566