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78cc6fcb01
llvm-6502/include/llvm/CodeGen
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Philip Reames 78cc6fcb01 [Statepoints 2/4] Statepoint infrastructure for garbage collection: MI & x86-64 Backend 
This is the second patch in a small series.  This patch contains the MachineInstruction and x86-64 backend pieces required to lower Statepoints.  It does not include the code to actually generate the STATEPOINT machine instruction and as a result, the entire patch is currently dead code.  I will be submitting the SelectionDAG parts within the next 24-48 hours.  Since those pieces are by far the most complicated, I wanted to minimize the size of that patch.  That patch will include the tests which exercise the functionality in this patch.  The entire series can be seen as one combined whole in http://reviews.llvm.org/D5683.

The STATEPOINT psuedo node is generated after all gc values are explicitly spilled to stack slots.  The purpose of this node is to wrap an actual call instruction while recording the spill locations of the meta arguments used for garbage collection and other purposes.  The STATEPOINT is modeled as modifing all of those locations to prevent backend optimizations from forwarding the value from before the STATEPOINT to after the STATEPOINT.  (Doing so would break relocation semantics for collectors which wish to relocate roots.)

The implementation of STATEPOINT is closely modeled on PATCHPOINT.  Eventually, much of the code in this patch will be removed.  The long term plan is to merge the functionality provided by statepoints and patchpoints.  Merging their implementations in the backend is likely to be a good starting point.

Reviewed by: atrick, ributzka



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223085 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-01 22:52:56 +00:00
..
PBQP [PBQP] Unique allowed-sets for nodes in the PBQP graph and use pairs of these 2014-10-27 17:44:25 +00:00
Analysis.h Allow the use of functions as typeinfo in landingpad clauses 2014-11-14 00:35:50 +00:00
AsmPrinter.h Make AsmPrinter::EmitLabelOffsetDifference a static helper and simplify. 2014-10-21 00:25:49 +00:00
CalcSpillWeights.h [PBQP] Tweak spill costs and coalescing benefits 2014-11-04 20:51:24 +00:00
CallingConvLower.h Stop using ArrayRef of a const type. 2014-11-27 21:29:20 +00:00
CommandFlags.h Add Forward Control-Flow Integrity. 2014-11-11 21:08:02 +00:00
DAGCombine.h
DFAPacketizer.h Remove the TargetMachine from DFAPacketizer since it was only 2014-10-14 01:03:16 +00:00
EdgeBundles.h [modules] "Specialize" a function by actually specializing a function template 2014-04-24 18:27:29 +00:00
FastISel.h [FastISel][AArch64] Add lowering support for frem. 2014-09-15 22:07:49 +00:00
ForwardControlFlowIntegrity.h Remove redundant virtual on overriden functions. 2014-11-14 19:06:36 +00:00
FunctionLoweringInfo.h Remove uses of the TargetMachine from FunctionLoweringInfo 2014-10-09 00:57:31 +00:00
GCMetadata.h Use unique_ptr to manage ownership of GCStrategy objects in GCMetadata 2014-04-15 05:34:49 +00:00
GCMetadataPrinter.h
GCs.h Test commit: Remove trailing whitespace. 2014-03-10 22:24:07 +00:00
GCStrategy.h Use unique_ptr to manage ownership of GCFunctionInfos in GCStrategy 2014-04-15 06:07:26 +00:00
IntrinsicLowering.h
ISDOpcodes.h Revert "Masked Vector Load and Store Intrinsics." 2014-11-28 21:29:14 +00:00
JumpInstrTables.h Add Forward Control-Flow Integrity. 2014-11-11 21:08:02 +00:00
LatencyPriorityQueue.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
LexicalScopes.h [DebugInfo] Remove LexicalScopes::isCurrentFunctionScope and CSE a use of LexicalScopes::getCurrentFunctionScope 2014-10-23 00:06:27 +00:00
LinkAllAsmWriterComponents.h
LinkAllCodegenComponents.h [C++] Use 'nullptr'. 2014-04-24 06:44:33 +00:00
LiveInterval.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
LiveIntervalAnalysis.h Access the subtarget off of the MachineFunction rather than 2014-10-14 06:26:53 +00:00
LiveIntervalUnion.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
LivePhysRegs.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
LiveRangeEdit.h Remove unnecessary getTarget call now that the subtarget is cached 2014-09-03 20:36:26 +00:00
LiveRegMatrix.h [C++11] Replace OwningPtr with std::unique_ptr in places where it doesn't break the API. 2014-04-21 09:34:48 +00:00
LiveStackAnalysis.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
LiveVariables.h CodeGen/LiveVariables: hoist out code in nested loops 2014-08-25 01:59:49 +00:00
MachineBasicBlock.h CodeGen: assert an instruction is being inserted with the correct iterator. 2014-11-14 00:34:59 +00:00
MachineBlockFrequencyInfo.h blockfreq: Remove unnecessary template parameters 2014-04-11 23:21:02 +00:00
MachineBranchProbabilityInfo.h blockfreq: Use const in MachineBlockFrequencyInfo 2014-03-25 18:01:32 +00:00
MachineCombinerPattern.h MachineCombiner Pass for selecting faster instruction 2014-08-03 21:35:39 +00:00
MachineConstantPool.h CodeGen: Add a getSectionKind method to MachineConstantPoolEntry 2014-07-14 22:06:29 +00:00
MachineDominanceFrontier.h Try to fix MSVC build 2014-07-12 23:09:02 +00:00
MachineDominators.h Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool> 2014-11-19 07:49:26 +00:00
MachineFrameInfo.h Replace calls to get the subtarget and TargetFrameLowering with 2014-10-08 08:46:34 +00:00
MachineFunction.h Remove unused member variable. 2014-10-14 18:53:16 +00:00
MachineFunctionAnalysis.h [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-07 09:26:03 +00:00
MachineFunctionPass.h [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-07 09:26:03 +00:00
MachineInstr.h Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
MachineInstrBuilder.h Work around bugs in MSVC "14" CTP 3's conversion logic 2014-10-31 23:19:46 +00:00
MachineInstrBundle.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
MachineJumpTableInfo.h
MachineLoopInfo.h [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-07 09:26:03 +00:00
MachineMemOperand.h AA metadata refactoring (introduce AAMDNodes) 2014-07-24 12:16:19 +00:00
MachineModuleInfo.h Allow the use of functions as typeinfo in landingpad clauses 2014-11-14 00:35:50 +00:00
MachineModuleInfoImpls.h
MachineOperand.h Add MachineOperand::ChangeToFPImmediate and setFPImm 2014-09-28 19:24:59 +00:00
MachinePassRegistry.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
MachinePostDominators.h Fix typos in comments, NFC 2014-08-29 21:53:01 +00:00
MachineRegionInfo.h Templatify RegionInfo so it works on MachineBasicBlocks 2014-07-19 18:29:29 +00:00
MachineRegisterInfo.h CodeGen: switch raw array to std::vector 2014-08-25 00:28:31 +00:00
MachineScheduler.h Cleanup: Delete seemingly unused reference to MachineDominatorTree from ScheduleDAGInstrs. 2014-08-20 20:57:26 +00:00
MachineSSAUpdater.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
MachineTraceMetrics.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
MachineValueType.h Teach the AArch64 backend about v4f16 and v8f16 2014-08-27 16:16:04 +00:00
MachORelocation.h
Passes.h Add Forward Control-Flow Integrity. 2014-11-11 21:08:02 +00:00
PBQPRAConstraint.h Remove redundant virtual on overriden functions. 2014-11-14 19:06:36 +00:00
PseudoSourceValue.h Fix broken build of llvm using clang. 2014-04-15 08:10:46 +00:00
RegAllocPBQP.h [PBQP] Remove a spurious 'typename' keyword. This was causing an error on MSVC. 2014-10-27 17:59:51 +00:00
RegAllocRegistry.h
RegisterClassInfo.h [C++11] Replace OwningPtr with std::unique_ptr in places where it doesn't break the API. 2014-04-21 09:34:48 +00:00
RegisterPressure.h Move remaining LLVM_ENABLE_DUMP conditionals out of the headers 2014-07-01 21:19:13 +00:00
RegisterScavenging.h Changed the liveness tracking in the RegisterScavenger 2014-08-04 23:07:49 +00:00
ResourcePriorityQueue.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-15 06:32:26 +00:00
RuntimeLibcalls.h Add minnum / maxnum codegen 2014-10-21 23:01:01 +00:00
ScheduleDAG.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
ScheduleDAGInstrs.h Cleanup: Delete seemingly unused reference to MachineDominatorTree from ScheduleDAGInstrs. 2014-08-20 20:57:26 +00:00
ScheduleDFS.h Move remaining LLVM_ENABLE_DUMP conditionals out of the headers 2014-07-01 21:19:13 +00:00
ScheduleHazardRecognizer.h
SchedulerRegistry.h
ScoreboardHazardRecognizer.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
SelectionDAG.h Revert "Masked Vector Load and Store Intrinsics." 2014-11-28 21:29:14 +00:00
SelectionDAGISel.h Cache TargetLowering on SelectionDAGISel and update previous 2014-10-08 07:32:17 +00:00
SelectionDAGNodes.h Revert "Masked Vector Load and Store Intrinsics." 2014-11-28 21:29:14 +00:00
SlotIndexes.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
StackMapLivenessAnalysis.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
StackMaps.h [Statepoints 2/4] Statepoint infrastructure for garbage collection: MI & x86-64 Backend 2014-12-01 22:52:56 +00:00
StackProtector.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
TargetLoweringObjectFileImpl.h CodeGen: Stick constant pool entries in COMDAT sections for WinCOFF 2014-07-14 22:57:27 +00:00
TargetSchedule.h Change MCSchedModel to be a struct of statically initialized data. 2014-09-02 17:43:54 +00:00
ValueTypes.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
ValueTypes.td
VirtRegMap.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00