Jonas Paulsson bd9bd9e500 [Stack realignment] Handling of aligned allocas. ...

This patch implements dynamic realignment of stack objects for targets
with a non-realigned stack pointer. Behaviour in FunctionLoweringInfo
is changed so that for a target that has StackRealignable set to
false, over-aligned static allocas are considered to be variable-sized
objects and are handled with DYNAMIC_STACKALLOC nodes.

It would be good to group aligned allocas into a single big alloca as
an optimization, but this is yet todo.

SystemZ benefits from this, due to its stack frame layout.

New tests SystemZ/alloca-03.ll for aligned allocas, and
SystemZ/alloca-04.ll for "no-realign-stack" attribute on functions.

Review and help from Ulrich Weigand and Hal Finkel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254227 91177308-0d34-0410-b5e6-96231b3b80d8

2015-11-28 11:02:32 +00:00

..

MIRParser

Re-commit r247216: "Fix Clang-tidy misc-use-override warnings, other minor fixes"

2015-09-10 16:49:58 +00:00

PBQP

Add more missing #includes, found by modules build.

2015-05-11 22:41:07 +00:00

Analysis.h

[WinEH] Permit branch folding in the face of funclets

2015-10-04 02:22:52 +00:00

AsmPrinter.h

Generalize ownership/passing semantics to allow dsymutil to own abbreviations via unique_ptr

2015-11-18 00:34:10 +00:00

AtomicExpandUtils.h

Refactor AtomicExpand::expandAtomicRMWToCmpXchg into a standalone function.

2015-08-03 15:29:47 +00:00

BasicTTIImpl.h

Fix some places where we were assuming that memory type had been legalized

2015-11-25 09:11:53 +00:00

CalcSpillWeights.h

Trace copies when checking for rematerializability in spill weight calculation

2015-08-10 11:59:44 +00:00

CallingConvLower.h

Arguments spilled on the stack before a function call may have

2015-09-29 10:12:57 +00:00

CommandFlags.h

[EABI] Add LLVM support for -meabi flag

2015-11-09 12:40:30 +00:00

DAGCombine.h

Refactor DAGCombinerInfo. Change the different booleans that indicate if we are before or after different runs of DAGCo, with the CombineLevel enum.

2012-12-27 06:47:41 +00:00

DFAPacketizer.h

Avoid dependency between TableGen and CodeGen

2015-11-22 15:20:19 +00:00

DIE.h

[DIE] Make DIE.h NDEBUG conditional-free.

2015-11-24 02:21:43 +00:00

DIEValue.def

Reapply "AsmPrinter: Change DIEValue to be stored by value"

2015-05-27 22:14:58 +00:00

DwarfStringPoolEntry.h

AsmPrinter: Avoid creating symbols in DwarfStringPool

2015-05-24 16:58:59 +00:00

EdgeBundles.h

[modules] "Specialize" a function by actually specializing a function template

2014-04-24 18:27:29 +00:00

FastISel.h

[SelectionDAG] Remove dead code. NFC.

2015-10-15 17:54:06 +00:00

FaultMaps.h

Revert "[FaultMaps] Move FaultMapParser to Object/"

2015-06-23 20:09:03 +00:00

FunctionLoweringInfo.h

[CodeGen] Remove usage of NDEBUG in header.

2015-10-23 00:17:40 +00:00

GCMetadata.h

Prune trailing whitespaces in comment lines.

2015-10-05 04:43:57 +00:00

GCMetadataPrinter.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

GCs.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

GCStrategy.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

IntrinsicLowering.h

Reformat 3 files in llvm/include/llvm/CodeGen/.

2015-10-05 04:44:18 +00:00

ISDOpcodes.h

X86: More efficient legalization of wide integer compares

2015-11-19 16:35:08 +00:00

LatencyPriorityQueue.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

LexicalScopes.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

LinkAllAsmWriterComponents.h

Add a GC plugin for Erlang

2013-03-25 13:47:46 +00:00

LinkAllCodegenComponents.h

Add a GCStrategy for CoreCLR

2015-05-20 01:07:23 +00:00

LiveInterval.h

TargetRegisterInfo: Add typedef unsigned LaneBitmask and use it where apropriate; NFC

2015-09-25 21:51:14 +00:00

LiveIntervalAnalysis.h

TargetRegisterInfo: Add typedef unsigned LaneBitmask and use it where apropriate; NFC

2015-09-25 21:51:14 +00:00

LiveIntervalUnion.h

RAGreedy: Keep track of allocated PhysRegs internally

2015-07-14 17:38:17 +00:00

LivePhysRegs.h

LivePhysRegs: Fix live-outs of return blocks

2015-09-25 23:50:53 +00:00

LiveRangeEdit.h

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

LiveRegMatrix.h

MachineRegisterInfo: Remove UsedPhysReg infrastructure

2015-07-14 17:52:07 +00:00

LiveStackAnalysis.h

Reformat 3 files in llvm/include/llvm/CodeGen/.

2015-10-05 04:44:18 +00:00

LiveVariables.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MachineBasicBlock.h

Modify the interface BranchProbability::normalizeProbabilities to let it accept a pair of iterators. NFC.

2015-11-18 01:03:19 +00:00

MachineBlockFrequencyInfo.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MachineBranchProbabilityInfo.h

Revert r250204 and r250240 due to bot failure. We failed to build PGO-ed clang.

2015-10-14 03:04:03 +00:00

MachineCombinerPattern.h

replace MachineCombinerPattern namespace and enum with enum class; NFCI

2015-11-05 19:34:57 +00:00

MachineConstantPool.h

Drop prelink support.

2015-11-17 00:51:23 +00:00

MachineDominanceFrontier.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MachineDominators.h

NFC.

2015-08-07 18:04:17 +00:00

MachineFrameInfo.h

[Stack realignment] Handling of aligned allocas.

2015-11-28 11:02:32 +00:00

MachineFunction.h

[WinEH] Move WinEHFuncInfo from MachineModuleInfo to MachineFunction

2015-11-17 21:10:25 +00:00

MachineFunctionAnalysis.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MachineFunctionInitializer.h

MIR Serialization: Connect the machine function analysis pass to the MIR parser.

2015-06-15 20:30:22 +00:00

MachineFunctionPass.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MachineInstr.h

ADT: Avoid relying on UB in ilist_node::getNextNode()

2015-11-11 02:26:42 +00:00

MachineInstrBuilder.h

[MachineInstrBuilder] Support for adding a ConstantPoolIndex MO with an additional offset.

2015-11-21 21:42:26 +00:00

MachineInstrBundle.h

CodeGen: Start removing implicit conversions to/from list iterators, NFC

2015-10-09 16:54:49 +00:00

MachineJumpTableInfo.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MachineLoopInfo.h

Remove macro guards for extern template instantiations.

2015-07-13 17:21:31 +00:00

MachineMemOperand.h

PseudoSourceValue: Replace global manager with a manager in a machine function.

2015-08-11 23:09:45 +00:00

MachineModuleInfo.h

[WinEH] Move WinEHFuncInfo from MachineModuleInfo to MachineFunction

2015-11-17 21:10:25 +00:00

MachineModuleInfoImpls.h

Reformat 3 files in llvm/include/llvm/CodeGen/.

2015-10-05 04:44:18 +00:00

MachineOperand.h

CodeGen: Push the ModuleSlotTracker through MachineOperands

2015-06-26 22:06:47 +00:00

MachinePassRegistry.h

Use 'override/final' instead of 'virtual' for overridden methods

2015-04-11 02:11:45 +00:00

MachinePostDominators.h

Use 'override/final' instead of 'virtual' for overridden methods

2015-04-11 02:11:45 +00:00

MachineRegionInfo.h

Remove macro guards for extern template instantiations.

2015-07-13 17:21:31 +00:00

MachineRegisterInfo.h

Trailing whitespaces.

2015-10-05 04:44:08 +00:00

MachineScheduler.h

ScheduleDAGInstrs: Remove IsPostRA flag; NFC

2015-11-03 01:53:29 +00:00

MachineSSAUpdater.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MachineTraceMetrics.h

Canonicalize header guards into a common format.

2014-08-13 16:26:38 +00:00

MachineValueType.h

Add new vector types for 512-, 1024- and 2048-bit vectors

2015-11-24 13:07:35 +00:00

MachORelocation.h

Fix include guards so they exactly match file names.

2013-01-10 00:45:19 +00:00

MIRYamlMapping.h

MIR Serialization: Serialize MMI's variable debug information.

2015-08-19 00:13:25 +00:00

ParallelCG.h

[LTO] Add option to emit assembly from LTOCodeGenerator

2015-11-19 23:59:24 +00:00

Passes.h

ScheduleDAGInstrs: Remove IsPostRA flag; NFC

2015-11-03 01:53:29 +00:00

PBQPRAConstraint.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

PseudoSourceValue.h

MIR Serialization: Serialize the external symbol call entry pseudo source

2015-08-14 21:14:50 +00:00

RegAllocPBQP.h

Fix some comment typos.

2015-08-08 18:27:36 +00:00

RegAllocRegistry.h

Reformat partially.

2015-10-05 04:46:30 +00:00

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

Revert "RegisterPressure: allocatable physreg uses are always kills"

2015-10-19 17:44:22 +00:00

RegisterScavenging.h

Reformat partially.

2015-10-05 04:46:30 +00:00

ResourcePriorityQueue.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

RuntimeLibcalls.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

ScheduleDAG.h

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

ScheduleDAGInstrs.h

ScheduleDAGInstrs: Remove IsPostRA flag; NFC

2015-11-03 01:53:29 +00:00

ScheduleDFS.h

Move remaining LLVM_ENABLE_DUMP conditionals out of the headers

2014-07-01 21:19:13 +00:00

ScheduleHazardRecognizer.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SchedulerRegistry.h

Move the Target way of overriding DAG Scheduler to a target hook

2015-07-28 06:18:04 +00:00

ScoreboardHazardRecognizer.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SelectionDAG.h

Attempt to fix uninitialized SDAG persistent ids detected by MSan

2015-11-18 01:21:06 +00:00

SelectionDAGISel.h

[SEH] Fix llvm.eh.exceptioncode fast register allocation assertion

2015-10-09 00:15:13 +00:00

SelectionDAGNodes.h

Expose isXxxConstant() functions from SelectionDAGNodes.h (NFC)

2015-11-25 19:41:11 +00:00

SlotIndexes.h

CodeGen: Be clear about semantics in SlotIndex::getNextSlot(), NFC

2015-11-09 23:31:01 +00:00

StackMaps.h

[StackMap] Use lambdas to specify the sort and erase conditions. NFC.

2015-07-09 17:11:15 +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, Target: Move Mach-O-specific symbol name logic to Mach-O lowering.

2015-11-03 23:40:03 +00:00

TargetSchedule.h

[MachineCombiner] Work with itineraries

2015-07-15 08:22:23 +00:00

ValueTypes.h

Add new vector types for 512-, 1024- and 2048-bit vectors

2015-11-24 13:07:35 +00:00

ValueTypes.td

Add new vector types for 512-, 1024- and 2048-bit vectors

2015-11-24 13:07:35 +00:00

VirtRegMap.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

WinEHFuncInfo.h

[WinEH] Move WinEHFuncInfo from MachineModuleInfo to MachineFunction

2015-11-17 21:10:25 +00:00