Hiroshi Inoue 059bd0e36c [SelectionDAG] set dereferenceable flag when expanding memcpy/memmove ...

When SelectionDAG expands memcpy (or memmove) call into a sequence of load and store instructions, it disregards dereferenceable flag even the source pointer is known to be dereferenceable.
This results in an assertion failure if SelectionDAG commonizes a load instruction generated for memcpy with another load instruction for the source pointer.
This patch makes SelectionDAG to set the dereferenceable flag for the load instructions properly to avoid the assertion failure.

Differential Revision: https://reviews.llvm.org/D34467




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306209 cdac9f57-aa62-4fd3-8940-286f4534e8a0

2017-06-24 15:17:38 +00:00

..

GlobalISel

Fix Wdocumentation warning.

2017-06-23 18:03:04 +00:00

MIRParser

CodeGen: Refactor MIR parsing

2017-06-06 00:44:35 +00:00

PBQP

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-01 23:25:02 +00:00

Analysis.h

Move llvm::canBeOmittedFromSymbolTable() to Analysis.

2017-03-31 04:46:31 +00:00

AsmPrinter.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

AtomicExpandUtils.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

BasicTTIImpl.h

DivergencyAnalysis patch for review

2017-06-15 19:33:10 +00:00

CalcSpillWeights.h

Trace copies when checking for rematerializability in spill weight calculation

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

CallingConvLower.h

[CodeGen] Remove dead call-or-prologue enum from CCState

2017-02-02 21:58:22 +00:00

CommandFlags.h

Re-land r301697 "[IR] Make add/remove Attributes use AttrBuilder instead of AttributeList"

2017-05-02 22:07:37 +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

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

DIE.h

Mark dump() methods as const. NFC

2017-06-21 22:19:17 +00:00

DIEValue.def

Make a DWARF generator so we can unit test DWARF APIs with gtest.

2016-12-08 01:03:48 +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

ExecutionDepsFix.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

ExpandReductions.h

Add a late IR expansion pass for the experimental reduction intrinsics.

2017-05-10 09:42:49 +00:00

FastISel.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

FaultMaps.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

FunctionLoweringInfo.h

ISel: Fix FastISel of swifterror values

2017-06-15 17:34:42 +00:00

GCMetadata.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

GCMetadataPrinter.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +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

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

IntrinsicLowering.h

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

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

ISDOpcodes.h

Do not legalize large setcc with setcce, introduce setcccarry and do it with usubo/setcccarry.

2017-06-01 11:14:17 +00:00

LatencyPriorityQueue.h

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

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

LazyMachineBlockFrequencyInfo.h

[LazyMachineBFI] Reimplement with getAnalysisIfAvailable

2017-02-23 17:30:01 +00:00

LexicalScopes.h

Mark dump() methods as const. NFC

2017-06-21 22:19:17 +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

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

LiveIntervalAnalysis.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

LiveIntervalUnion.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

LivePhysRegs.h

LivePhysRegs: Rework constructor + documentation; NFC

2017-05-26 21:51:00 +00:00

LiveRangeEdit.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

LiveRegMatrix.h

LiveRegMatrix: Fix some subreg interference checks

2017-03-02 00:35:08 +00:00

LiveRegUnits.h

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

LiveStackAnalysis.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

LiveVariables.h

Use the range variant of find instead of unpacking begin/end

2016-08-11 22:21:41 +00:00

LowLevelType.h

Recommit: [globalisel] Change LLT constructor string into an LLT-based object that knows how to generate it.

2017-03-07 23:20:35 +00:00

MachineBasicBlock.h

Restrict the definition of loop preheader to avoid EH blocks

2017-06-22 23:27:16 +00:00

MachineBlockFrequencyInfo.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

MachineBranchProbabilityInfo.h

Use getEdgeProbability() instead of getEdgeWeight() in BFI and remove getEdgeWeight() interfaces from MBPI.

2015-12-18 21:53:24 +00:00

MachineCombinerPattern.h

[AArch64][MachineCombine] Fold FNMUL+FSUB -> FNMADD.

2017-05-11 20:07:24 +00:00

MachineConstantPool.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-31 01:10:10 +00:00

MachineDominanceFrontier.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

MachineDominators.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-24 23:10:29 +00:00

MachineFrameInfo.h

ARM: Compute MaxCallFrame size early

2017-05-05 22:04:05 +00:00

MachineFunction.h

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

MachineFunctionPass.h

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

MachineInstr.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-31 01:10:10 +00:00

MachineInstrBuilder.h

PR32382: Fix emitting complex DWARF expressions.

2017-04-18 01:21:53 +00:00

MachineInstrBundle.h

MachineInstrBundle: Pass iterators to getBundle(Start|End); NFC

2016-10-25 02:55:17 +00:00

MachineInstrBundleIterator.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-31 01:10:10 +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

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-05-31 01:10:10 +00:00

MachineMemOperand.h

[SelectionDAG] set dereferenceable flag when expanding memcpy/memmove

2017-06-24 15:17:38 +00:00

MachineModuleInfo.h

CodeGen: Refactor MIR parsing

2017-06-06 00:44:35 +00:00

MachineModuleInfoImpls.h

[WebAssembly] Use __stack_pointer global when writing wasm binary

2017-06-16 23:59:10 +00:00

MachineOperand.h

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

MachineOptimizationRemarkEmitter.h

OptDiag: Use DiagnosticLocation in MachineOptimizationRemarks

2017-02-24 00:19:18 +00:00

MachinePassRegistry.h

Use StringRef in CommandLine Options handling (NFC)

2016-10-01 03:43:20 +00:00

MachinePostDominators.h

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

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

MachineRegionInfo.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-01 23:25:02 +00:00

MachineRegisterInfo.h

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

MachineScheduler.h

Mark dump() methods as const. NFC

2017-06-21 22:19:17 +00:00

MachineSSAUpdater.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

MachineTraceMetrics.h

[CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-02-21 22:07:52 +00:00

MachineValueType.h

[MVT] Fix the identation of the start of the MVT class. NFC

2017-05-25 06:15:05 +00:00

MachORelocation.h

Fix include guards so they exactly match file names.

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

MacroFusion.h

Recommit rL305677: [CodeGen] Add generic MacroFusion pass

2017-06-19 12:53:31 +00:00

MIRPrinter.h

MIParser/MIRPrinter: Compute block successors if not explicitely specified

2017-05-05 21:09:30 +00:00

MIRYamlMapping.h

[Improve CodeGen Testing] This patch renables MIRPrinter print fields which have value equal to its default.

2017-06-06 08:16:19 +00:00

ParallelCG.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

Passes.h

[RABasic] Properly initialize the pass

2017-06-02 22:46:26 +00:00

PBQPRAConstraint.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-01 23:25:02 +00:00

PreISelIntrinsicLowering.h

[PM] Port PreISelIntrinsicLowering to the new PM

2016-06-24 20:13:42 +00:00

PseudoSourceValue.h

Add custom type for PseudoSourceValue

2016-12-17 04:41:53 +00:00

RegAllocPBQP.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-01 23:25:02 +00:00

RegAllocRegistry.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

RegisterClassInfo.h

Disable Callee Saved Registers

2017-03-14 09:09:26 +00:00

RegisterPressure.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-06 22:22:41 +00:00

RegisterScavenging.h

RegScavenging: Add scavengeRegisterBackwards()

2017-06-17 02:08:18 +00:00

RegisterUsageInfo.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-06 22:22:41 +00:00

ResourcePriorityQueue.h

Replace silly uses of 'signed' with 'int'

2016-06-21 05:10:24 +00:00

RuntimeLibcalls.h

[Atomics] Rename and change prototype for atomic memcpy intrinsic

2017-06-16 14:43:59 +00:00

ScheduleDAG.h

Sort the remaining #include lines in include/... and lib/....

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ScheduleDAGInstrs.h

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ScheduleDAGMutation.h

[CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-02-22 22:32:51 +00:00

ScheduleDFS.h

Sort the remaining #include lines in include/... and lib/....

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ScheduleHazardRecognizer.h

[CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-02-22 22:32:51 +00:00

SchedulerRegistry.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-06 22:22:41 +00:00

ScoreboardHazardRecognizer.h

[CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-02-22 22:32:51 +00:00

SelectionDAG.h

[DAG] add helper to bind memop chains; NFCI

2017-06-12 14:41:48 +00:00

SelectionDAGAddressAnalysis.h

[DAG] Move BaseIndexOffset into separate Libarary. NFC.

2017-06-21 15:40:43 +00:00

SelectionDAGISel.h

[CodeGen] Pass SDAG an ORE, and replace FastISel stats with remarks.

2017-03-30 17:49:58 +00:00

SelectionDAGNodes.h

AVX-512: Lowering Masked Gather intrinsic - fixed a bug

2017-06-22 06:47:41 +00:00

SelectionDAGTargetInfo.h

Pass DebugLoc and SDLoc by const ref.

2016-06-12 15:39:02 +00:00

SlotIndexes.h

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

StackMaps.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-03 00:22:41 +00:00

StackProtector.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

TailDuplicator.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

TargetLoweringObjectFileImpl.h

IR: Replace the "Linker Options" module flag with "llvm.linker.options" named metadata.

2017-06-12 20:10:48 +00:00

TargetPassConfig.h

CodeGen/LLVMTargetMachine: Refactor ISel pass construction; NFCI

2017-06-06 00:26:13 +00:00

TargetSchedule.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-07 23:53:32 +00:00

UnreachableBlockElim.h

[PM] Port UnreachableBlockElim to the new Pass Manager

2016-07-08 03:32:49 +00:00

ValueTypes.h

[MVT][SVE] Scalable vector MVTs (3/3)

2017-04-20 13:54:09 +00:00

ValueTypes.td

[MVT] add v1i1 MVT

2017-05-18 11:29:41 +00:00

VirtRegMap.h

RegAllocPBQP: Do not assign reserved physical register

2017-06-08 21:30:54 +00:00

WinEHFuncInfo.h

[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-06-03 00:22:41 +00:00