| 98985f959c57f2b8c0b6e4b5ee519252e71e9cd9 |
|
11-Aug-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Privatize an unused part of the LiveIntervalUnion::Query interface.
No clients are iterating over interference overlaps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137350 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 27215676c7114132a0374f7b5c9ea73d9354d329 |
|
09-Aug-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Refer to the RegisterCoalescer pass by ID.
A public interface is no longer needed since RegisterCoalescer is not an
analysis any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137082 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 3b92527885c905e2d14f10eabbe45d1efda04bbf |
|
27-Jul-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Print out the MBB live-in registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136178 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 9d812a2805161665d56a78734da98b58f39ce0fc |
|
02-Jul-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Better diagnostics when inline asm fails to allocate.
asm.c:2:7: error: ran out of registers during register allocation
asm(""::"r"(0), "r"(1), "r"(2), "r"(3), "r"(4), "r"(5), "r"(6), "r"(7), "r"(8), "r"(9));
^
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134310 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 5b220213bfe9c37c2bb41a7ae0804e06a14f1007 |
|
27-Jun-2011 |
Rafael Espindola <rafael.espindola@gmail.com> |
There is only one register coalescer. Merge it into the base class and
remove the analysis group.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133899 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| fdf16ca44f130afe80c57481d0c08130aa08cc09 |
|
26-Jun-2011 |
Rafael Espindola <rafael.espindola@gmail.com> |
Move RegisterCoalescer.h to lib/CodeGen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133895 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 5f2316a3b55f88dab2190212210770180a32aa95 |
|
03-Jun-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Switch AllocationOrder to using RegisterClassInfo instead of a BitVector
of reserved registers.
Use RegisterClassInfo in RABasic as well. This slightly changes som
allocation orders because RegisterClassInfo puts CSR aliases last.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132581 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| bdda37d7fbafe6876f248341837423a4100f95a5 |
|
10-May-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix PR9883. Make sure all caches are invalidated when a live range is repaired.
The previous invalidation missed the alias interference caches.
Also add a stats counter for the number of repaired ranges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131133 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| bf4e10f2f69db24c107cb61d6fe10ed5b2047374 |
|
06-May-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Emit a proper error message when register allocators run out of registers.
This can't be just an assertion, users can always write impossible inline
assembly. Such an assembly statement should be included in the error message.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131024 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 6bfba2e5af163442a1c6b11fe14aa9df9101cfd7 |
|
20-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Prefer cheap registers for busy live ranges.
On the x86-64 and thumb2 targets, some registers are more expensive to encode
than others in the same register class.
Add a CostPerUse field to the TableGen register description, and make it
available from TRI->getCostPerUse. This represents the cost of a REX prefix or a
32-bit instruction encoding required by choosing a high register.
Teach the greedy register allocator to prefer cheap registers for busy live
ranges (as indicated by spill weight).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129864 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| dfaf0e2c0ef01a6f6fd31f2e099ab63c5a7f7cc0 |
|
12-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Fix a bug in RegAllocBase::addMBBLiveIns() where a basic block could accidentally be skipped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129373 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 560ab9ebf78532df11188770c916c4eb6dcce1b2 |
|
12-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Reuse live interval union between functions. This saves a bit of compile time
when compiling many small functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129321 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 6d73c7dad165bde864769ae1a351bce27b261565 |
|
11-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use a faster algorithm for computing MBB live-in registers after register allocation.
LiveIntervals::findLiveInMBBs has to do a full binary search for each segment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129292 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| bd1926dfd4fbc8ca09941e00ac507eb5637e9c25 |
|
11-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Time the initial seeding of live registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129276 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| cfafc54040cc9722995558124f253d05a038176b |
|
05-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Run LiveDebugVariables in RegAllocBasic and RegAllocGreedy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128935 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 842759662ba3eae35d6078643983a07266be9aa5 |
|
01-Apr-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
The basic register allocator must also use the inline spiller.
It is using a trivial rewriter that doesn't know how to insert spill code
requested by the standard spiller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128688 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 0b5015188e834afa7fb2fe3694a9c190f59fd19c |
|
23-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Allow the allocation of empty live ranges that have uses.
Empty ranges may represent undef values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128144 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 2926733240d0766fbd45df6eb609ad2328f0307d |
|
16-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Tag cached interference with a user-provided tag instead of the virtual register number.
The live range of a virtual register may change which invalidates the cached
interference information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127772 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 10a433238fe4679c8da17f3eb19611466332e312 |
|
12-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Spill multiple registers at once.
Live range splitting can create a number of small live ranges containing only a
single real use. Spill these small live ranges along with the large range they
are connected to with copies. This enables memory operand folding and maximizes
the spill to fill distance.
Work in progress with known bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127529 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 47dbf6cef761c25cfeb0aa7d624a6f98288bb96a |
|
10-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Change the Spiller interface to take a LiveRangeEdit reference.
This makes it possible to register delegates and get callbacks when the spiller
edits live ranges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127389 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 38f6bd0fc8095ef79a89b3db15ff6dc734ac90e7 |
|
10-Mar-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Make SpillIs an optional pointer. Avoid creating a bunch of temporary SmallVectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127388 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 98d9648de7d571b2e6d139b65961a70d1833b0d7 |
|
23-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Change the RAGreedy register assignment order so large live ranges are allocated first.
This is based on the observation that long live ranges are more difficult to
allocate, so there is a better chance of solving the puzzle by handling the big
pieces first. The allocator will evict and split long alive ranges when they get
in the way.
RABasic is still using spill weights for its priority queue, so the interface to
the queue has been virtualized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126259 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| ba05c01dabc40373760a20c874103fc58d4377f0 |
|
18-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add VirtRegMap::rewrite() and use it in the new register allocators.
The rewriter works almost identically to -rewriter=trivial, except it also
eliminates any identity copies.
This makes the new register allocators independent of VirtRegRewriter.cpp which
will be going away at the same time as RegAllocLinearScan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125967 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| febb0bd0b9b75923dea4c34f22be7e4c7b6b501e |
|
18-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Trim debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125802 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 0db841f9c2b9a25fb5ecb36e350d3a802c35654c |
|
17-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add basic register allocator statistics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125789 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 2710638db2eb84cd7eefb8bb9a1b7e5c49413d45 |
|
09-Feb-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Evict a lighter single interference before attempting to split a live range.
Registers are not allocated strictly in spill weight order when live range
splitting and spilling has created new shorter intervals with higher spill
weights.
When one of the new heavy intervals conflicts with a single lighter interval,
simply evict the old interval instead of trying to split the heavy one.
The lighter interval is a better candidate for splitting, it has a smaller use
density.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125151 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 89cab93fe999f6d81b4b99a71ac797b7ecfec277 |
|
18-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Pass a Banner argument to the machine code verifier both from
createMachineVerifierPass and MachineFunction::verify.
The banner is printed before the machine code dump, just like the printer pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122113 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| af24964251e27c2dd863239ba66ffd967b593be5 |
|
18-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Make the -verify-regalloc command line option available to base classes as
RegAllocBase::VerifyEnabled.
Run the machine code verifier in a few interesting places during RegAllocGreedy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122107 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 16999da951677a94a2f30d98c8126ff175f457e1 |
|
15-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplyfy RegAllocBasic by using getOverlaps instead of getAliasSet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121801 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 4a84cce3ed0008baf72ccc6831a046215addd2d7 |
|
14-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Use TRI::printReg instead of AbstractRegisterDescription when printing
LiveIntervalUnions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121781 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 533f58ecdd8a4732c2f0e149387c4d8d8d4142de |
|
11-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Add named timer groups for the different stages of register allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121604 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 4680dec5fb3a1b624f13ca9b2a555ca90a07973e |
|
11-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Move MRI into RegAllocBase. Clean up debug output a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121599 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| b853e6c3702149cdbbd6fa404334e3ba0055641a |
|
09-Dec-2010 |
Andrew Trick <atrick@apple.com> |
Added register reassignment prototype to RAGreedy. It's a simple
heuristic to reshuffle register assignments when we can't find an
available reg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121388 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| d0bec3e62c98b1f0ef3a41db8f95599b2014c131 |
|
08-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Store (priority,regnum) pairs in the priority queue instead of providing an
abstract priority queue interface in subclasses that want to override the
priority calculations.
Subclasses must provide a getPriority() implementation instead.
This approach requires less code as long as priorities are expressable as simple
floats, and it avoids the dangers of defining potentially expensive priority
comparison functions.
It also should speed up priority_queue operations since they no longer have to
chase pointers when comparing registers. This is not measurable, though.
Preferably, we shouldn't use floats to guide code generation. The use of floats
here is derived from the use of floats for spill weights. Spill weights have a
dynamic range that doesn't lend itself easily to a fixpoint implementation.
When someone invents a stable spill weight representation, it can be reused for
allocation priorities.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121294 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 1b19dc1d8b7594434ea9a157bfe2ae68eabf9f05 |
|
08-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Move RABasic::addMBBLiveIns to the base class, it is generally useful.
Minor optimization to the use of IntervalMap iterators. They are fairly
heavyweight, so prefer SI.valid() over SI != end().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121217 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 953af2c3c560a13bd5eeb676c128b7e362dca684 |
|
08-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Switch LiveIntervalUnion from std::set to IntervalMap.
This speeds up RegAllocBasic by 20%, not counting releaseMemory which becomes
way faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121201 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 2b38c51f0ece16ef00068da56bee4623fb9ae485 |
|
07-Dec-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplify assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121162 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 18c57a8a09a7c79fbcf4348b0ad8135246ab984f |
|
01-Dec-2010 |
Andrew Trick <atrick@apple.com> |
Coding style. No significant functionality. Abandon linear scan style
in favor of the widespread llvm style. Capitalize variables and add
newlines for visual parsing. Rename variables for readability.
And other cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120490 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| c62feda741f9d5811b625967c40f1847fb2040e7 |
|
25-Nov-2010 |
Benjamin Kramer <benny.kra@googlemail.com> |
Namespacify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120146 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 316df4bfe3db625a4394ff018c51d61f223aad86 |
|
20-Nov-2010 |
Andrew Trick <atrick@apple.com> |
RABasic fix. Regalloc is responsible for updating block live ins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119896 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 13bdbb0544900643b4520f67cc48c6046c515c65 |
|
20-Nov-2010 |
Andrew Trick <atrick@apple.com> |
Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119895 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 8a83d54528c197675ba0f21ebe95ac30fa3d8841 |
|
11-Nov-2010 |
Andrew Trick <atrick@apple.com> |
Check TRI->getReservedRegs because other allocators do it. Even though
it makes no sense for allocation_order iterators to visit reserved regs.
The inline spiller depends on AliasAnalysis.
Manage the Query state to avoid uninitialized or stale results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118800 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| f4baeaf8485f01beda46d29fd55753199dc68070 |
|
10-Nov-2010 |
Andrew Trick <atrick@apple.com> |
RABasic is nearly functionally complete. There are a few remaining
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 071d1c063f1080c70a7141d947a96cf511a1ba45 |
|
09-Nov-2010 |
Andrew Trick <atrick@apple.com> |
Adds RABasic verification and tracing.
(retry now that the windows build is green)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118630 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 32d9aeb1df982638766757704c4e23f58ffb40d1 |
|
09-Nov-2010 |
Andrew Trick <atrick@apple.com> |
Reverting r118604. Windows build broke.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118613 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| 39a5ce46a51c8e855a2f52c9f733d9d5dd8a65c4 |
|
09-Nov-2010 |
Andrew Trick <atrick@apple.com> |
Adds RABasic verification and tracing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118604 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
|
| e141a4960f702bef957b28abde3801ec64e32d87 |
|
08-Nov-2010 |
Andrew Trick <atrick@apple.com> |
Adds support for spilling previously allocated live intervals to
handle cases in which a register is unavailable for spill code.
Adds LiveIntervalUnion::extract. While processing interferences on a
live virtual register, reuses the same Query object for each
physcial reg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118423 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
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| 964bc25e5a03be208427ce2ebadb22a42681ef9c |
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03-Nov-2010 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Let RegAllocBasic require MachineDominators - they are already available and
splitting needs them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118194 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
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| e16eecc323879744dcff4f359ba9ccdb25bd6909 |
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26-Oct-2010 |
Andrew Trick <atrick@apple.com> |
Jakob's review of the basic register allocator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117384 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
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| 14e8d71cc945034d4ee6e76be00e00f14efac62f |
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23-Oct-2010 |
Andrew Trick <atrick@apple.com> |
This is a prototype of an experimental register allocation
framework. It's purpose is not to improve register allocation per se,
but to make it easier to develop powerful live range splitting. I call
it the basic allocator because it is as simple as a global allocator
can be but provides the building blocks for sophisticated register
allocation with live range splitting.
A minimal implementation is provided that trivially spills whenever it
runs out of registers. I'm checking in now to get high-level design
and style feedback. I've only done minimal testing. The next step is
implementing a "greedy" allocation algorithm that does some register
reassignment and makes better splitting decisions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117174 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/RegAllocBasic.cpp
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