llvm-svn: 59746

llvm-svn: 59727

llvm-svn: 59718

llvm-svn: 59702

list-tdrr schedulers into a common base class.

llvm-svn: 59701

dedicated "fast" scheduler in -fast mode instead, which is
faster. This speeds up llc -fast by a few percent on some
testcases -- the speedup only happens for code not handled by
fast-isel.

llvm-svn: 59700

the list-burr scheduler so that it can be used by the list-tdrr
scheduler too.

llvm-svn: 59698

- Register scavenger should use MachineRegisterInfo and internal map to find the first use of a register after a given machine instruction.
- When scavenging a register, in addition to the spill, insert a restore before the first use.
- Abort if client is looking to scavenge a register even when a previously scavenged register is still live.

llvm-svn: 59697

llvm-svn: 59692

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

llvm-svn: 59689

and CreateClone don't add any extra value.

llvm-svn: 59679

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: 59629

llvm-svn: 59587

llvm-svn: 59580

print in the correct order.

llvm-svn: 59567

llvm-svn: 59566

llvm-svn: 59562

Register scavenger should process early clobber defs first. A dead early clobber def should not interfere with a normal def which happens one slot later.

llvm-svn: 59559

consistent with ScheduleNodeTopDown methods.

llvm-svn: 59550

llvm-svn: 59549

and FP_ROUND.  Not sure what these were doing
here - probably they were sometimes (wrongly)
created with integer operands somewhere that
has since been fixed.

llvm-svn: 59548

supposed to be any functionality change.

llvm-svn: 59545

Fix a bug introduced by my previous patch.  With this change, SPEC is now clean with prealloc splitting enabled.

llvm-svn: 59544

llvm-svn: 59542

llvm-svn: 59540

llvm-svn: 59532

SCALAR_TO_VECTOR.  I didn't add the testcase, because
once llc gets past scalar-to-vector it hits a SPU target
lowering bug and explodes.

llvm-svn: 59530

llvm-svn: 59519

when softening FNEG.

llvm-svn: 59513

llvm-svn: 59504

- Use less indentation in coding.
- Shorten description.
- Update comments.
- Move code around

llvm-svn: 59496

llvm-svn: 59489

a SelectionDAG*.

llvm-svn: 59488

Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll
Failed with signal(SIGABRT) at line 1
while running:  llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll |  llc -march=xcore > fneg.ll.tmp1.s
Assertion failed: (VT.isFloatingPoint() && "Cannot create integer FP constant!"), function getConstantFP, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 913.
0   llc                                 0x0092115c _ZN4llvm3sys18RemoveFileOnSignalERKNS0_4PathEPSs + 844
1   libSystem.B.dylib                   0x9217809b _sigtramp + 43
2   ???                                 0xffffffff 0x0 + 4294967295
3   libSystem.B.dylib                   0x921f0ec2 raise + 26
4   libSystem.B.dylib                   0x9220047f abort + 73
5   libSystem.B.dylib                   0x921f2063 __assert_rtn + 101
6   llc                                 0x005a5b0a _ZN4llvm12SelectionDAG13getConmake[1]: *** [check-local] Error 1
make: *** [check] Error 2

llvm-svn: 59487

new CycleBound value. Instead, just update CycleBound on each call.
Also, make ReleasePred and ReleaseSucc methods more consistent accross
the various schedulers.

This also happens to make ScheduleDAGRRList's CycleBound computation
somewhat more interesting, though it still doesn't have any noticeable
effect, because no current targets that use the register-pressure
reduction scheduler provide pipeline models.

llvm-svn: 59475

functions in these two schedulers.

llvm-svn: 59465

patch by Richard Osborne, tweaked and extended by your humble
servant.

llvm-svn: 59464