Commit Graph

154 Commits

Author SHA1 Message Date
Lang Hames 05fee08dfa My earlier "fix" for PBQP (see r165201) was incorrect. The real issue was that
checkRegMaskInterference only initializes the bitmask on the first interference.

This fixes PR14027 and (re)fixes PR13945.

llvm-svn: 165608
2012-10-10 06:39:48 +00:00
Lang Hames 8ce99f296b Fix reg mask slot test, and preserve LiveIntervals and VirtRegMap in the PBQP
allocator. Fixes PR13945.

llvm-svn: 165201
2012-10-04 04:50:53 +00:00
Roman Divacky 09c8a3dde5 Remove unused typedefs gcc4.8 warns about.
llvm-svn: 163225
2012-09-05 17:55:46 +00:00
Craig Topper a538d831e6 Add a getName function to MachineFunction. Use it in places that previously did getFunction()->getName(). Remove includes of Function.h that are no longer needed.
llvm-svn: 162347
2012-08-22 06:07:19 +00:00
Jakob Stoklund Olesen b1b3e4aa58 Remove LiveIntervals::trackingRegUnits().
With regunit liveness permanently enabled, this function would always
return true.

Also remove now obsolete code for checking physreg interference.

llvm-svn: 159006
2012-06-22 16:46:44 +00:00
Jakob Stoklund Olesen 37a1338a16 Remove spurious typedefs.
llvm-svn: 158878
2012-06-20 23:54:18 +00:00
Jakob Stoklund Olesen 1911a0203d Remove the RenderMachineFunction HTML output pass.
I don't think anyone has been using this functionality for a while, and
it is getting in the way of refactoring now.

llvm-svn: 158876
2012-06-20 23:47:58 +00:00
Jakob Stoklund Olesen bfa664eaae Teach PBQPBuilder::build() about regunit interference.
Filter out physreg candidates with regunit interferrence.
Also compute regmask interference more efficiently.

llvm-svn: 158864
2012-06-20 22:32:05 +00:00
Jakob Stoklund Olesen a1f43dcdb8 Avoid iterating with LiveIntervals::iterator.
That is a DenseMap iterator keyed by pointers, so the iteration order is
nondeterministic.

I would like to replace the DenseMap with an IndexedMap which doesn't
allow iteration.

llvm-svn: 158856
2012-06-20 21:25:05 +00:00
Jakob Stoklund Olesen be336295cd Also compute MBB live-in lists in the new rewriter pass.
This deduplicates some code from the optimizing register allocators, and
it means that it is now possible to change the register allocators'
solutions simply by editing the VirtRegMap between the register
allocator pass and the rewriter.

llvm-svn: 158249
2012-06-09 00:14:47 +00:00
Jakob Stoklund Olesen 1224312f5b Reintroduce VirtRegRewriter.
OK, not really. We don't want to reintroduce the old rewriter hacks.

This patch extracts virtual register rewriting as a separate pass that
runs after the register allocator. This is possible now that
CodeGen/Passes.cpp can configure the full optimizing register allocator
pipeline.

The rewriter pass uses register assignments in VirtRegMap to rewrite
virtual registers to physical registers, and it inserts kill flags based
on live intervals.

These finalization steps are the same for the optimizing register
allocators: RABasic, RAGreedy, and PBQP.

llvm-svn: 158244
2012-06-08 23:44:45 +00:00
Benjamin Kramer 628a39faa3 Remove unused private fields found by clang's new -Wunused-private-field.
There are some that I didn't remove this round because they looked like
obvious stubs. There are dead variables in gtest too, they should be
fixed upstream.

llvm-svn: 158090
2012-06-06 18:25:08 +00:00
Jakob Stoklund Olesen 54038d796c Switch all register list clients to the new MC*Iterator interface.
No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

llvm-svn: 157854
2012-06-01 23:28:30 +00:00
Patrik Hägglund 94537c2a06 Small fix for the debug output from PBQP (PR12822).
llvm-svn: 157319
2012-05-23 12:12:58 +00:00
Jakob Stoklund Olesen e5bbe37950 Allow LiveRangeEdit to be created with a NULL parent.
The dead code elimination with callbacks is still useful.

llvm-svn: 157100
2012-05-19 05:25:46 +00:00
Pete Cooper 3ca96f9950 Moved LiveRangeEdit.h so that it can be called from other parts of the backend, not just libCodeGen
llvm-svn: 153906
2012-04-02 22:44:18 +00:00
Pete Cooper 2bde2f42b1 Refactored the LiveRangeEdit interface so that MachineFunction, TargetInstrInfo, MachineRegisterInfo, LiveIntervals, and VirtRegMap are all passed into the constructor and stored as members instead of passed in to each method.
llvm-svn: 153903
2012-04-02 22:22:53 +00:00
Lang Hames 95e021faf5 Add a debug option to dump PBQP graphs during register allocation.
llvm-svn: 153483
2012-03-26 23:07:23 +00:00
Lang Hames 45c6d21ae1 Add support for register masks to PBQP.
llvm-svn: 153341
2012-03-23 17:33:42 +00:00
Craig Topper 1d32658877 Use uint16_t to store register overlaps to reduce static data.
llvm-svn: 152001
2012-03-04 10:43:23 +00:00
Craig Topper b35eacb0f0 Use uint16_t instead of unsigned to store registers in reg classes. Reduces static data size.
llvm-svn: 151998
2012-03-04 10:16:38 +00:00
Andrew Trick da84e64683 Clear virtual registers after they are no longer referenced.
Passes after RegAlloc should be able to rely on MRI->getNumVirtRegs() == 0.
This makes sharing code for pre/postRA passes more robust.
Now, to check if a pass is running before the RA pipeline begins, use MRI->isSSA().
To check if a pass is running after the RA pipeline ends, use !MRI->getNumVirtRegs().

PEI resets virtual regs when it's done scavenging.

PTX will either have to provide its own PEI pass or assign physregs.

llvm-svn: 151032
2012-02-21 04:51:23 +00:00
Andrew Trick d3f8fe81f4 RegAlloc superpass: includes phi elimination, coalescing, and scheduling.
Creates a configurable regalloc pipeline.

Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa.

When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>.

CodeGen transformation passes are never "required" as an analysis

ProcessImplicitDefs does not require LiveVariables.

We have a plan to massively simplify some of the early passes within the regalloc superpass.

llvm-svn: 150226
2012-02-10 04:10:36 +00:00
Andrew Trick 9363b597e3 whitespace
llvm-svn: 150225
2012-02-10 04:10:26 +00:00
Craig Topper ee4dab5f1f Convert assert(0) to llvm_unreachable
llvm-svn: 149816
2012-02-05 08:31:47 +00:00
Jakob Stoklund Olesen d19d3cab09 Freeze reserved registers before starting register allocation.
The register allocators don't currently support adding reserved
registers while they are running.  Extend the MRI API to keep track of
the set of reserved registers when register allocation started.

Target hooks like hasFP() and needsStackRealignment() can look at this
set to avoid reserving more registers during register allocation.

llvm-svn: 147577
2012-01-05 00:26:49 +00:00
Lang Hames 52f24d7a32 Kill off the LoopSplitter. It's not being used or maintained.
llvm-svn: 145897
2011-12-06 01:57:59 +00:00
Lang Hames b13b6a04d0 Update PBQP's analysis usage to reflect the requirements of the inline spiller.
llvm-svn: 145893
2011-12-06 01:45:57 +00:00
Jakob Stoklund Olesen 03f73ab76f Switch PBQP to VRM's trivial rewriter.
The very complicated VirtRegRewriter is going away.

llvm-svn: 144479
2011-11-13 00:02:24 +00:00
Jakob Stoklund Olesen 11bb63a756 Switch PBQP to the modern InlineSpiller framework.
It is worth noting that the old spiller would split live ranges around
basic blocks. The new spiller doesn't do that.

PBQP should do its own live range splitting with
SplitEditor::splitSingleBlock() if desired.  See
RAGreedy::tryBlockSplit().

llvm-svn: 144476
2011-11-12 23:17:52 +00:00
Jakob Stoklund Olesen 4c9a2fb044 Refer to the RegisterCoalescer pass by ID.
A public interface is no longer needed since RegisterCoalescer is not an
analysis any more.

llvm-svn: 137082
2011-08-09 00:29:53 +00:00
Rafael Espindola 676c405acb There is only one register coalescer. Merge it into the base class and
remove the analysis group.

llvm-svn: 133899
2011-06-26 22:34:10 +00:00
Rafael Espindola fef3c64a1f Move RegisterCoalescer.h to lib/CodeGen.
llvm-svn: 133895
2011-06-26 21:41:06 +00:00
Lang Hames 934625efc1 Add a hook for PBQP clients to run a custom pre-alloc pass to run prior to PBQP allocation. Patch by Arnaud Allard de Grandmaison.
llvm-svn: 133249
2011-06-17 07:09:01 +00:00
Jakob Stoklund Olesen 08322b7dc3 Move PBQP off allocation_order_begin. No functional change intended.
I think PBQP could use RegisterClassInfo, but it didn't fit neatly with
the external interfaces that PBQP uses, so I'll leave that to Lang.

llvm-svn: 133186
2011-06-16 20:37:45 +00:00
Jakob Stoklund Olesen c6cc485051 Make SpillIs an optional pointer. Avoid creating a bunch of temporary SmallVectors.
llvm-svn: 127388
2011-03-10 01:21:58 +00:00
Lang Hames c702ba6ca1 Fix some style issues in PBQP. Patch by David Blaikie.
llvm-svn: 118883
2010-11-12 05:47:21 +00:00
Owen Anderson 6c18d1aac0 Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which
must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.

llvm-svn: 116820
2010-10-19 17:21:58 +00:00
Lang Hames 4108e7e192 Removed the older style (in-allocator) problem construction system from the PBQP allocator. Problem construction is now done exclusively with the new builders.
llvm-svn: 115502
2010-10-04 12:13:07 +00:00
Lang Hames 564956867e Removed VNInfo::isDefAccurate(). Def "accuracy" can be checked by testing whether LiveIntervals::getInstructionFromIndex(def) returns NULL.
llvm-svn: 114791
2010-09-25 12:04:16 +00:00
Lang Hames fd1bc42230 Moved the PBQP allocator class out of the header and back in to the cpp file to hide the gory details.
Allocator instances can now be created by calling createPBQPRegisterAllocator.

Tidied up use of CoalescerPair as per Jakob's suggestions.

Made the new PBQPBuilder based construction process the default. The internal construction process
remains in-place and available via -pbqp-builder=false for now. It will be removed shortly if the new
process doesn't cause any regressions.

llvm-svn: 114626
2010-09-23 04:28:54 +00:00
Lang Hames 2b252f6b6d Fixed ambiguous call.
llvm-svn: 114431
2010-09-21 13:47:10 +00:00
Lang Hames 0937fc4b7f Added an additional PBQP problem builder which adds coalescing costs (both between pairs of virtuals, and between virtuals and physicals).
llvm-svn: 114429
2010-09-21 13:19:36 +00:00
Benjamin Kramer 45a56d3c49 Unbreak msvc build.
llvm-svn: 114284
2010-09-18 14:41:26 +00:00
Lang Hames 361de9870a Fixed non-const iterator error.
llvm-svn: 114273
2010-09-18 09:49:08 +00:00
Lang Hames cb1e1017dd Added a separate class (PBQPBuilder) for PBQP Problem construction. This class can be extended to support custom constraints.
For now the allocator still uses the old (internal) construction mechanism by default. This will be phased out soon assuming 
no issues with the builder system come up.

To invoke the new construction mechanism just pass '-regalloc=pbqp -pbqp-builder' to llc. To provide custom constraints a
Target just needs to extend PBQPBuilder and pass an instance of their derived builder to the RegAllocPBQP constructor.

llvm-svn: 114272
2010-09-18 09:07:10 +00:00
Lang Hames 9a6f8ee32c Added support for register allocators to record which intervals are spill intervals, and where the uses and defs of the original intervals were in the original code.
Spill intervals can be hidden using the "-rmf-intervals=virt-nospills*" option.

llvm-svn: 112811
2010-09-02 08:27:00 +00:00
Jim Grosbach b070ddf6b4 The register allocator shouldn't consider allocating reserved registers. PBQP version.
llvm-svn: 112742
2010-09-01 21:23:03 +00:00
Owen Anderson a7aed18624 Reapply r110396, with fixes to appease the Linux buildbot gods.
llvm-svn: 110460
2010-08-06 18:33:48 +00:00
Owen Anderson bda59bd247 Revert r110396 to fix buildbots.
llvm-svn: 110410
2010-08-06 00:23:35 +00:00
Owen Anderson 755aceb5d0 Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396
2010-08-05 23:42:04 +00:00
Lang Hames a93fe2de3c Switched to rendering after allocation (but before rewriting) in PBQP.
Updated renderer to use allocation information from VirtRegMap (if
available) to render spilled intervals differently.

llvm-svn: 108815
2010-07-20 07:41:44 +00:00
Lang Hames 6624efb711 Render MachineFunctions to HTML pages, with options to render register
pressure estimates and liveness alongside.

Still experimental.

llvm-svn: 108698
2010-07-19 15:22:28 +00:00
Lang Hames 1392b8eb79 Added -pbqp-pre-coalescing flag to PBQP. If enabled this will cause PBQP to require
LoopSplitter be run prior to register allocation.

Entirely for testing purposes at the moment.

llvm-svn: 108634
2010-07-18 00:57:59 +00:00
Lang Hames 211e7ce7e7 Iterating over sets of pointers in a heuristic was a bad idea. Switching
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
2010-07-17 06:31:41 +00:00
Jakob Stoklund Olesen 37c42a3d02 Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.
TII::isMoveInstr is going tobe completely removed.

llvm-svn: 108507
2010-07-16 04:45:42 +00:00
Rafael Espindola 01c5a15dde Don't use getPhysicalRegisterRegClass in PBQP. The existing checks that the
physical register can be allocated in the class of the virtual are sufficient.

I think that the test for virtual registers is more strict than it needs to be,
it should be possible to coalesce two virtual registers the class of one
is a subclass of the other.

llvm-svn: 108118
2010-07-12 01:45:38 +00:00
Chris Lattner 93cd0f1c89 improve portability to systems that don't have powf/modf (e.g. solaris 9)
patch by Evzen Muller!

llvm-svn: 103876
2010-05-15 17:10:24 +00:00
Duncan Sands 1804b4f9eb Remove terminating dot in description. Inconsistency pointed
out by Russell Wallace.

llvm-svn: 96579
2010-02-18 14:10:41 +00:00
Lang Hames 5734217c84 Removed an early out which was causing the PBQP allocator to not compute live-in sets or run the rewriter.
llvm-svn: 96450
2010-02-17 03:42:51 +00:00
Lang Hames 48121948dc Fixed a bug in the PBQP allocator's findCoalesces method.
Previously spill registers, whose def indexes are not defined, would sometimes be improperly marked as coalescable with conflicting registers. The new findCoalesces routine conservatively assumes that any register with at least one undefined def is not coalescable with any register it interferes with.

llvm-svn: 95636
2010-02-09 00:50:27 +00:00
Lang Hames 090c7e82dd New PBQP solver.
* Fixed a reduction bug which occasionally led to infinite-cost (invalid)
  register allocation solutions despite the existence finite-cost solutions.
* Significantly reduced memory usage (>50% reduction).
* Simplified a lot of the solver code.

llvm-svn: 94514
2010-01-26 04:49:58 +00:00
David Greene 7e256f397c Change errs() to dbgs().
llvm-svn: 92586
2010-01-05 01:25:43 +00:00
Lang Hames d17e296301 Moved spill weight calculation out of SimpleRegisterCoalescing and into its own pass: CalculateSpillWeights.
llvm-svn: 91273
2009-12-14 06:49:42 +00:00
Lang Hames 6da915ac86 Added an assert to the PBQP allocator to catch infinite cost solutions which might otherwise lead to miscompilations.
llvm-svn: 88829
2009-11-15 04:39:51 +00:00
Lang Hames 05fb9637f6 The Indexes Patch.
This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.

For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.

The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.

llvm-svn: 85979
2009-11-03 23:52:08 +00:00
Nick Lewycky 02d5f77d26 Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042
2009-10-25 06:33:48 +00:00
Lang Hames 920301ecc5 Renamed MachineInstrIndex to LiveIndex.
llvm-svn: 83254
2009-10-03 04:21:37 +00:00
Daniel Dunbar 7d6781b0fe Tabs -> spaces, and remove trailing whitespace.
llvm-svn: 82355
2009-09-20 02:20:51 +00:00
Duncan Sands 89720bbd11 Remove some not-really-used variables, as warned
about by icc (#593, partial).  Patch by Erick Tryzelaar.

llvm-svn: 81115
2009-09-06 12:41:19 +00:00
Lang Hames 3fffe62177 Replaces uses of unsigned for indexes in LiveInterval and VNInfo with
a new class, MachineInstrIndex, which hides arithmetic details from
most clients. This is a step towards allowing the register allocator
to update/insert code during allocation.

llvm-svn: 81040
2009-09-04 20:41:11 +00:00
Lang Hames 0b3720b3c3 Fixed a test that ensures the LocalRewriter does not attempt to
avoid reloads by reusing clobbered registers.

This was causing issues in 256.bzip2 when compiled with PIC for
a while (starting at r78217), though the problem has since been masked. 

llvm-svn: 80872
2009-09-03 02:52:02 +00:00
Daniel Dunbar e7e865cf0b Suppress build warning in -Asserts
llvm-svn: 79564
2009-08-20 20:01:34 +00:00
Lang Hames 11732add1e Added an option to have the PBQP allocator attempt coalescing during allocation.
llvm-svn: 79397
2009-08-19 01:36:14 +00:00
Lang Hames 305be0e603 Changes DOUT references in the PBQP allocator to use DEBUG(errs() ...)
llvm-svn: 79378
2009-08-18 23:34:50 +00:00
Lang Hames b4c6965da3 Added RegisterCoalescer to required passes for PBQP.
llvm-svn: 78840
2009-08-12 21:04:53 +00:00
Dan Gohman c7c2bc9663 Remove unnecessary throw() specifications; LLVM doesn't use exceptions.
llvm-svn: 78667
2009-08-11 15:35:57 +00:00
Dan Gohman 38484ceec9 Remove unnecessary casts.
llvm-svn: 78664
2009-08-11 15:15:10 +00:00
Lang Hames 3b90d973b0 Modified VNInfo. The "copy" member is now a union which holds the copy for a register interval, or the defining register for a stack interval. Access is via getCopy/setCopy and getReg/setReg.
llvm-svn: 78620
2009-08-10 23:43:28 +00:00
Owen Anderson eddff647ac Remove a bunch of debugging code that was slowing PBQP down by 25% or so.
llvm-svn: 78601
2009-08-10 21:49:45 +00:00
Daniel Dunbar 4bfb4c80e0 Fix some -Asserts unused variable warnings.
llvm-svn: 78447
2009-08-08 00:40:46 +00:00
Lang Hames 88fae6f9c9 New C++ PBQP solver. Currently about as fast (read _slow_) as the old C based solver, but I'll be working to improve that. The PBQP allocator has been updated to use the new solver.
llvm-svn: 78354
2009-08-06 23:32:48 +00:00
Dan Gohman 0402315d41 Use setPreservesAll and setPreservesCFG in CodeGen passes.
llvm-svn: 77754
2009-07-31 23:37:33 +00:00
Daniel Dunbar 0dd5e1ed39 More migration to raw_ostream, the water has dried up around the iostream hole.
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
   "magic" DOUT behavior which avoided calling printing functions when the
   statement was disabled. In addition to being unnecessary magic, it had the
   downside of leaving code in -Asserts builds, and of hiding potentially
   unnecessary computations.

llvm-svn: 77019
2009-07-25 00:23:56 +00:00
Lang Hames 16cab1935e VNInfo cleanup.
llvm-svn: 73634
2009-06-17 21:01:20 +00:00
Evan Cheng 085caf10be Move register allocation preference (or hint) from LiveInterval to MachineRegisterInfo. This allows more passes to set them.
llvm-svn: 73346
2009-06-14 20:22:55 +00:00
Bill Wendling 09f17a8479 Untabification.
llvm-svn: 72604
2009-05-30 01:09:53 +00:00
Lang Hames 4030d8122d Prevented reg0 from being added to MBB live-in set, which was causing issues
for PostRAScheduler. 

llvm-svn: 71991
2009-05-17 23:50:36 +00:00
Lang Hames ab68cf24bb Renamed Spiller classes (plus uses and related files) to VirtRegRewriter.
llvm-svn: 71057
2009-05-06 02:36:21 +00:00
Evan Cheng 210fc62a91 In some rare cases, the register allocator can spill registers but end up not utilizing registers at all. The fundamental problem is linearscan's backtracking can end up freeing more than one allocated registers. However, reloads and restores might be folded into uses / defs and freed registers might not be used at all.
VirtRegMap keeps track of allocations so it knows what's not used. As a horrible hack, the stack coloring can color spill slots with *free* registers. That is, it replace reload and spills with copies from and to the free register. It unfold instructions that load and store the spill slot and replace them with register using variants.

Not yet enabled. This is part 1. More coming.

llvm-svn: 70787
2009-05-03 18:32:42 +00:00
Evan Cheng 1a99a5f501 It has finally happened. Spiller is now using live interval info.
This fixes a very subtle bug. vr defined by an implicit_def is allowed overlap with any register since it doesn't actually modify anything. However, if it's used as a two-address use, its live range can be extended and it can be spilled. The spiller must take care not to emit a reload for the vn number that's defined by the implicit_def. This is both a correctness and performance issue.

llvm-svn: 69743
2009-04-21 22:46:52 +00:00
Sanjiv Gupta 88e15b258f r66870 missed this out.
llvm-svn: 67082
2009-03-17 15:46:15 +00:00
Owen Anderson d37ddf5b5b Convert VirtRegMap to a MachineFunctionPass.
llvm-svn: 66870
2009-03-13 05:55:11 +00:00
Owen Anderson aabe06d92a Reorganization: Move the Spiller out of VirtRegMap.cpp into its own files. No (intended) functionality change.
llvm-svn: 66720
2009-03-11 22:31:21 +00:00
Evan Cheng c544cb0eca Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.
llvm-svn: 62600
2009-01-20 19:12:24 +00:00
Misha Brukman 572f2646c2 * Moved author attribution to CREDITS.TXT
* Removed trailing whitespace

llvm-svn: 61927
2009-01-08 16:40:25 +00:00
Misha Brukman da46748ad2 * Alphabetized #includes
* Removed trailing whitespace

llvm-svn: 61926
2009-01-08 15:50:22 +00:00
Argyrios Kyrtzidis 4172d641d1 Fix compilation error on MSVC.
llvm-svn: 59629
2008-11-19 12:56:21 +00:00
Lang Hames 49ab8bc67d Big PBQP allocator update. Adds coalescing support, stack slot coloring, several bug-fixes.
llvm-svn: 59414
2008-11-16 12:12:54 +00:00
Lang Hames 9a91bd82c5 Test commit.
llvm-svn: 59293
2008-11-14 06:51:35 +00:00