Chijun Sima 86ddb2a386 Make MergeBlockIntoPredecessor conformant to the precondition of calling DTU.applyUpdates ...

Summary:
It is mentioned in the document of DTU that "It is illegal to submit any update that has already been submitted, i.e., you are supposed not to insert an existent edge or delete a nonexistent edge." It is dangerous to violet this rule because DomTree and PostDomTree occasionally crash on this scenario.

This patch fixes `MergeBlockIntoPredecessor`, making it conformant to this precondition.

Reviewers: kuhar, brzycki, chandlerc

Reviewed By: brzycki

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58444

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@355105 91177308-0d34-0410-b5e6-96231b3b80d8

2019-02-28 16:47:18 +00:00

..

AddDiscriminators.cpp

[llvm] Clarify responsiblity of some of DILocation discriminator APIs

2019-01-24 00:10:25 +00:00

ASanStackFrameLayout.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

BasicBlockUtils.cpp

Make MergeBlockIntoPredecessor conformant to the precondition of calling DTU.applyUpdates

2019-02-28 16:47:18 +00:00

BreakCriticalEdges.cpp

BreakCriticalEdges: Update PostDominatorTree

2019-02-22 15:01:41 +00:00

BuildLibCalls.cpp

[opaque pointer types] Add a FunctionCallee wrapper type, and use it.

2019-02-01 02:28:03 +00:00

BypassSlowDivision.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

CallPromotionUtils.cpp

[opaque pointer types] Pass function type for CallBase::setCalledFunction.

2019-02-01 20:44:54 +00:00

CanonicalizeAliases.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

CloneFunction.cpp

Move DomTreeUpdater from IR to Analysis

2019-02-06 02:52:52 +00:00

CloneModule.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

CMakeLists.txt

[ThinLTO] Handle chains of aliases

2019-01-04 19:04:54 +00:00

CodeExtractor.cpp

[CodeExtractor] Do not lift lifetime.end markers for region inputs

2019-02-15 18:46:58 +00:00

CtorUtils.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

DemoteRegToStack.cpp

[opaque pointer types] Pass value type to LoadInst creation.

2019-02-01 20:44:24 +00:00

EntryExitInstrumenter.cpp

[opaque pointer types] Add a FunctionCallee wrapper type, and use it.

2019-02-01 02:28:03 +00:00

EscapeEnumerator.cpp

[opaque pointer types] Add a FunctionCallee wrapper type, and use it.

2019-02-01 02:28:03 +00:00

Evaluator.cpp

[CallSite removal] Migrate ConstantFolding APIs and implementation to

2019-02-11 07:51:44 +00:00

FlattenCFG.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

FunctionComparator.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

FunctionImportUtils.cpp

Recommit "[ThinLTO] Rename COMDATs for COFF when promoting/renaming COMDAT leader"

2019-01-31 17:18:11 +00:00

GlobalStatus.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

GuardUtils.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

ImportedFunctionsInliningStatistics.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

InlineFunction.cpp

Implementation of asm-goto support in LLVM

2019-02-08 20:48:56 +00:00

InstructionNamer.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

IntegerDivision.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

LCSSA.cpp

[LCSSA] Handle case with single new PHI faster.

2019-02-02 15:26:05 +00:00

LibCallsShrinkWrap.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

LLVMBuild.txt

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

Local.cpp

[DTU] Refine the interface and logic of applyUpdates

2019-02-22 13:48:38 +00:00

LoopRotationUtils.cpp

Move DomTreeUpdater from IR to Analysis

2019-02-06 02:52:52 +00:00

LoopSimplify.cpp

[MemorySSA & LoopPassManager] Update MemorySSA in formDedicatedExitBlocks.

2019-02-21 21:13:34 +00:00

LoopUnroll.cpp

[llvm] Clarify responsiblity of some of DILocation discriminator APIs

2019-01-24 00:10:25 +00:00

LoopUnrollAndJam.cpp

[llvm] Clarify responsiblity of some of DILocation discriminator APIs

2019-01-24 00:10:25 +00:00

LoopUnrollPeel.cpp

[LoopUnrollPeel] Add case where we should forget the peeled loop from SCEV.

2019-02-14 13:59:39 +00:00

LoopUnrollRuntime.cpp

[MemorySSA & LoopPassManager] Update MemorySSA in formDedicatedExitBlocks.

2019-02-21 21:13:34 +00:00

LoopUtils.cpp

[DTU] Deprecate insertEdge*/deleteEdge*

2019-02-22 05:41:43 +00:00

LoopVersioning.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

LowerInvoke.cpp

[opaque pointer types] Pass function types to CallInst creation.

2019-02-01 20:43:25 +00:00

LowerMemIntrinsics.cpp

[opaque pointer types] Pass value type to GetElementPtr creation.

2019-02-01 20:44:47 +00:00

LowerSwitch.cpp

[LowerSwitch][AMDGPU] Do not handle impossible values

2019-02-22 14:33:46 +00:00

Mem2Reg.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

MetaRenamer.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

ModuleUtils.cpp

[opaque pointer types] Add a FunctionCallee wrapper type, and use it.

2019-02-01 02:28:03 +00:00

NameAnonGlobals.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

PredicateInfo.cpp

[opaque pointer types] Add a FunctionCallee wrapper type, and use it.

2019-02-01 02:28:03 +00:00

PromoteMemoryToRegister.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

SanitizerStats.cpp

[opaque pointer types] Add a FunctionCallee wrapper type, and use it.

2019-02-01 02:28:03 +00:00

SimplifyCFG.cpp

[NFC] Rename DontDeleteUselessPHIs --> KeepOneInputPHIs

2019-02-12 07:09:29 +00:00

SimplifyIndVar.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

SimplifyLibCalls.cpp

[opaque pointer types] Pass value type to GetElementPtr creation.

2019-02-01 20:44:47 +00:00

SplitModule.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

SSAUpdater.cpp

[LICM/MSSA] Add promotion to scalars by building an AliasSetTracker with MemorySSA.

2019-02-06 20:25:17 +00:00

SSAUpdaterBulk.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

StripGCRelocates.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

StripNonLineTableDebugInfo.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

SymbolRewriter.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

UnifyFunctionExitNodes.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

Utils.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

ValueMapper.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

VNCoercion.cpp

[GVN] Small tweaks to comments, style, and missed vector handling

2019-02-20 00:31:28 +00:00