CoroSplit.cpp File Reference

#include "llvm/Transforms/Coroutines/CoroSplit.h"
#include "CoroCloner.h"
#include "CoroInternal.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/PriorityWorklist.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Analysis/CFG.h"
#include "llvm/Analysis/CallGraph.h"
#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/Analysis/LazyCallGraph.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CFG.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DIBuilder.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/IR/Verifier.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/Coroutines/MaterializationUtils.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/CallGraphUpdater.h"
#include "llvm/Transforms/Utils/Cloning.h"
#include "llvm/Transforms/Utils/Local.h"
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <initializer_list>
#include <iterator>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "coro-split"

Functions
static void	lowerAwaitSuspend (IRBuilder<> &Builder, CoroAwaitSuspendInst *CB, coro::Shape &Shape)
static void	lowerAwaitSuspends (Function &F, coro::Shape &Shape)
static void	maybeFreeRetconStorage (IRBuilder<> &Builder, const coro::Shape &Shape, Value *FramePtr, CallGraph *CG)
static bool	replaceCoroEndAsync (AnyCoroEndInst *End)
	Replace an llvm.coro.end.async.
static void	replaceFallthroughCoroEnd (AnyCoroEndInst *End, const coro::Shape &Shape, Value *FramePtr, bool InResume, CallGraph *CG)
	Replace a non-unwind call to llvm.coro.end.
static void	markCoroutineAsDone (IRBuilder<> &Builder, const coro::Shape &Shape, Value *FramePtr)
static void	replaceUnwindCoroEnd (AnyCoroEndInst *End, const coro::Shape &Shape, Value *FramePtr, bool InResume, CallGraph *CG)
	Replace an unwind call to llvm.coro.end.
static void	replaceCoroEnd (AnyCoroEndInst *End, const coro::Shape &Shape, Value *FramePtr, bool InResume, CallGraph *CG)
static FunctionType *	getFunctionTypeFromAsyncSuspend (AnyCoroSuspendInst *Suspend)
static Function *	createCloneDeclaration (Function &OrigF, coro::Shape &Shape, const Twine &Suffix, Module::iterator InsertBefore, AnyCoroSuspendInst *ActiveSuspend)
static void	replaceSwiftErrorOps (Function &F, coro::Shape &Shape, ValueToValueMapTy *VMap)
static SmallVector< DbgVariableRecord * >	collectDbgVariableRecords (Function &F)
	Returns all debug records in F.
static void	updateScopeLine (Instruction *ActiveSuspend, DISubprogram &SPToUpdate)
	Adjust the scope line of the funclet to the first line number after the suspend point.
static void	addFramePointerAttrs (AttributeList &Attrs, LLVMContext &Context, unsigned ParamIndex, uint64_t Size, Align Alignment, bool NoAlias)
static void	addAsyncContextAttrs (AttributeList &Attrs, LLVMContext &Context, unsigned ParamIndex)
static void	addSwiftSelfAttrs (AttributeList &Attrs, LLVMContext &Context, unsigned ParamIndex)
static void	updateAsyncFuncPointerContextSize (coro::Shape &Shape)
static TypeSize	getFrameSizeForShape (coro::Shape &Shape)
static void	replaceFrameSizeAndAlignment (coro::Shape &Shape)
static void	postSplitCleanup (Function &F)
static void	handleNoSuspendCoroutine (coro::Shape &Shape)
static bool	hasCallsInBlockBetween (iterator_range< BasicBlock::iterator > R)
static bool	hasCallsInBlocksBetween (BasicBlock *SaveBB, BasicBlock *ResDesBB)
static bool	hasCallsBetween (Instruction *Save, Instruction *ResumeOrDestroy)
static bool	simplifySuspendPoint (CoroSuspendInst *Suspend, CoroBeginInst *CoroBegin)
static void	simplifySuspendPoints (coro::Shape &Shape)
static void	replaceAsyncResumeFunction (CoroSuspendAsyncInst *Suspend, Value *Continuation)
Coerce the arguments in p FnArgs according to p FnTy in p static CallArgs void	coerceArguments (IRBuilder<> &Builder, FunctionType *FnTy, ArrayRef< Value * > FnArgs, SmallVectorImpl< Value * > &CallArgs)
Remove calls to llvm coro end in the original static function void	removeCoroEndsFromRampFunction (const coro::Shape &Shape)
static bool	hasSafeElideCaller (Function &F)
static void	doSplitCoroutine (Function &F, SmallVectorImpl< Function * > &Clones, coro::BaseABI &ABI, TargetTransformInfo &TTI, bool OptimizeFrame)
static LazyCallGraph::SCC &	updateCallGraphAfterCoroutineSplit (LazyCallGraph::Node &N, const coro::Shape &Shape, const SmallVectorImpl< Function * > &Clones, LazyCallGraph::SCC &C, LazyCallGraph &CG, CGSCCAnalysisManager &AM, CGSCCUpdateResult &UR, FunctionAnalysisManager &FAM)
Replace a call to llvm coro prepare static retcon void	replacePrepare (CallInst *Prepare, LazyCallGraph &CG, LazyCallGraph::SCC &C)
static bool	replaceAllPrepares (Function *PrepareFn, LazyCallGraph &CG, LazyCallGraph::SCC &C)
static void	addPrepareFunction (const Module &M, SmallVectorImpl< Function * > &Fns, StringRef Name)
static std::unique_ptr< coro::BaseABI >	CreateNewABI (Function &F, coro::Shape &S, std::function< bool(Instruction &)> IsMatCallback, const SmallVector< CoroSplitPass::BaseABITy > GenCustomABIs)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "coro-split"

Definition at line 80 of file CoroSplit.cpp.

Function Documentation

addAsyncContextAttrs()

static void addAsyncContextAttrs ( AttributeList &  Attrs, LLVMContext &  Context, unsigned  ParamIndex  )

static

Definition at line 856 of file CoroSplit.cpp.

References llvm::AttrBuilder::addAttribute(), and Context.

Referenced by llvm::coro::BaseCloner::create().

addFramePointerAttrs()

static void addFramePointerAttrs ( AttributeList &  Attrs, LLVMContext &  Context, unsigned  ParamIndex, uint64_t  Size, Align  Alignment, bool  NoAlias  )

static

Definition at line 841 of file CoroSplit.cpp.

References llvm::AttrBuilder::addAlignmentAttr(), llvm::AttrBuilder::addAttribute(), llvm::AttrBuilder::addDereferenceableAttr(), Context, and Size.

Referenced by llvm::coro::BaseCloner::create().

addPrepareFunction()

static void addPrepareFunction ( const Module &  M, SmallVectorImpl< Function * > &  Fns, StringRef  Name  )

static

Definition at line 2122 of file CoroSplit.cpp.

References Name, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by llvm::CoroSplitPass::run().

addSwiftSelfAttrs()

static void addSwiftSelfAttrs ( AttributeList &  Attrs, LLVMContext &  Context, unsigned  ParamIndex  )

static

Definition at line 863 of file CoroSplit.cpp.

References llvm::AttrBuilder::addAttribute(), and Context.

Referenced by llvm::coro::BaseCloner::create().

coerceArguments()

Coerce the arguments in p FnArgs according to p FnTy in p static CallArgs void coerceArguments ( IRBuilder<> &  Builder, FunctionType *  FnTy, ArrayRef< Value * >  FnArgs, SmallVectorImpl< Value * > &  CallArgs  )

static

Definition at line 1675 of file CoroSplit.cpp.

References assert(), llvm::IRBuilderBase::CreateBitOrPointerCast(), getType(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::ArrayRef< T >::size().

Referenced by llvm::coro::createMustTailCall().

collectDbgVariableRecords()

static SmallVector< DbgVariableRecord * > collectDbgVariableRecords ( Function &  F )

static

Returns all debug records in F.

Definition at line 623 of file CoroSplit.cpp.

References F, llvm::filterDbgVars(), I, instructions, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by doSplitCoroutine(), and llvm::coro::BaseCloner::salvageDebugInfo().

createCloneDeclaration()

static Function * createCloneDeclaration ( Function &  OrigF, coro::Shape &  Shape, const Twine &  Suffix, Module::iterator  InsertBefore, AnyCoroSuspendInst *  ActiveSuspend  )

static

Definition at line 449 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::coro::Async, llvm::Function::Create(), getFunctionTypeFromAsyncSuspend(), llvm::Value::getName(), llvm::GlobalValue::getParent(), llvm::coro::Shape::getResumeFunctionType(), and llvm::GlobalValue::InternalLinkage.

Referenced by llvm::coro::SwitchCloner::create(), llvm::coro::AsyncABI::splitCoroutine(), and llvm::coro::AnyRetconABI::splitCoroutine().

CreateNewABI()

static std::unique_ptr< coro::BaseABI > CreateNewABI ( Function &  F, coro::Shape &  S, std::function< bool(Instruction &)>  IsMatCallback, const SmallVector< CoroSplitPass::BaseABITy >  GenCustomABIs  )

static

Definition at line 2131 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::coro::Async, llvm::coro::Shape::CoroBegin, F, llvm::CoroBeginInst::getCustomABI(), llvm::CoroBeginInst::hasCustomABI(), llvm_unreachable, llvm::coro::Retcon, llvm::coro::RetconOnce, llvm::SmallVectorBase< Size_T >::size(), and llvm::coro::Switch.

Referenced by llvm::CoroSplitPass::CoroSplitPass().

doSplitCoroutine()

static void doSplitCoroutine ( Function &  F, SmallVectorImpl< Function * > &  Clones, coro::BaseABI &  ABI, TargetTransformInfo &  TTI, bool  OptimizeFrame  )

static

Definition at line 1986 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), collectDbgVariableRecords(), llvm::coro::Shape::CoroBegin, llvm::coro::Shape::CoroSuspends, F, handleNoSuspendCoroutine(), hasSafeElideCaller(), lowerAwaitSuspends(), llvm::coro::normalizeCoroutine(), removeCoroEndsFromRampFunction(), replaceFrameSizeAndAlignment(), replaceSwiftErrorOps(), llvm::coro::salvageDebugInfo(), simplifySuspendPoints(), and llvm::coro::Switch.

Referenced by llvm::CoroSplitPass::run().

getFrameSizeForShape()

static TypeSize getFrameSizeForShape ( coro::Shape &  Shape )

static

Definition at line 1113 of file CoroSplit.cpp.

References llvm::coro::Shape::CoroSizes, DL, and llvm::coro::Shape::FrameTy.

Referenced by replaceFrameSizeAndAlignment().

getFunctionTypeFromAsyncSuspend()

static FunctionType * getFunctionTypeFromAsyncSuspend ( AnyCoroSuspendInst *  Suspend )

static

Definition at line 441 of file CoroSplit.cpp.

References Context, llvm::FunctionType::get(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and llvm::Type::getVoidTy().

Referenced by createCloneDeclaration().

handleNoSuspendCoroutine()

static void handleNoSuspendCoroutine ( coro::Shape &  Shape )

static

Definition at line 1159 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::coro::Async, llvm::coro::Shape::CoroBegin, llvm::IRBuilderBase::CreateAlloca(), llvm::coro::Shape::FrameAlign, llvm::coro::Shape::FrameTy, llvm::PoisonValue::get(), llvm::AnyCoroIdInst::getCoroAlloc(), llvm::IRBuilderBase::getFalse(), llvm::coro::Shape::getSwitchCoroId(), llvm::coro::replaceCoroFree(), llvm::coro::Retcon, llvm::coro::RetconOnce, llvm::AllocaInst::setAlignment(), and llvm::coro::Switch.

Referenced by doSplitCoroutine().

hasCallsBetween()

static bool hasCallsBetween ( Instruction *  Save, Instruction *  ResumeOrDestroy  )

static

Definition at line 1234 of file CoroSplit.cpp.

References llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), hasCallsInBlockBetween(), and hasCallsInBlocksBetween().

Referenced by simplifySuspendPoint().

hasCallsInBlockBetween()

static bool hasCallsInBlockBetween ( iterator_range< BasicBlock::iterator >  R )

static

Definition at line 1193 of file CoroSplit.cpp.

References I.

Referenced by hasCallsBetween(), and hasCallsInBlocksBetween().

hasCallsInBlocksBetween()

static bool hasCallsInBlocksBetween ( BasicBlock *  SaveBB, BasicBlock *  ResDesBB  )

static

Definition at line 1205 of file CoroSplit.cpp.

References llvm::SmallVectorBase< Size_T >::empty(), hasCallsInBlockBetween(), llvm::SmallVectorImpl< T >::pop_back_val(), llvm::predecessors(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by hasCallsBetween().

hasSafeElideCaller()

static bool hasSafeElideCaller ( Function &  F )

static

Definition at line 1968 of file CoroSplit.cpp.

References F.

Referenced by doSplitCoroutine().

lowerAwaitSuspend()

static void lowerAwaitSuspend ( IRBuilder<> &  Builder, CoroAwaitSuspendInst *  CB, coro::Shape &  Shape  )

static

Definition at line 86 of file CoroSplit.cpp.

References llvm::IRBuilderBase::CreateCall(), llvm::IRBuilderBase::CreateInvoke(), llvm::Instruction::eraseFromParent(), llvm::CallingConv::Fast, FramePtr, llvm::CallBase::getAttributes(), llvm::CoroAwaitSuspendInst::getAwaiter(), llvm::CallBase::getCalledFunction(), llvm::IRBuilderBase::getContext(), llvm::Value::getContext(), llvm::CoroAwaitSuspendInst::getFrame(), llvm::IRBuilderBase::GetInsertPoint(), llvm::Function::getIntrinsicID(), llvm::Type::getVoidTy(), llvm::CoroAwaitSuspendInst::getWrapperFunction(), llvm_unreachable, llvm::coro::LowererBase::makeSubFnCall(), llvm::AttributeList::removeParamAttributes(), llvm::Value::replaceAllUsesWith(), llvm::CoroSubFnInst::ResumeIndex, llvm::CallBase::setAttributes(), llvm::CallBase::setCallingConv(), llvm::IRBuilderBase::SetInsertPoint(), llvm::coro::Shape::SymmetricTransfers, and Wrapper.

Referenced by lowerAwaitSuspends().

lowerAwaitSuspends()

static void lowerAwaitSuspends ( Function &  F, coro::Shape &  Shape  )

static

Definition at line 152 of file CoroSplit.cpp.

References llvm::coro::Shape::CoroAwaitSuspends, F, and lowerAwaitSuspend().

Referenced by doSplitCoroutine().

markCoroutineAsDone()

static void markCoroutineAsDone ( IRBuilder<> &  Builder, const coro::Shape &  Shape, Value *  FramePtr  )

static

Definition at line 313 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::coro::Shape::CoroSuspends, llvm::IRBuilderBase::CreateStore(), llvm::IRBuilderBase::CreateStructGEP(), FramePtr, llvm::coro::Shape::FrameTy, llvm::ConstantPointerNull::get(), llvm::coro::Shape::getIndex(), llvm::coro::Shape::getSwitchIndexField(), llvm::StructType::getTypeAtIndex(), llvm::coro::Shape::SwitchLoweringStorage::HasFinalSuspend, llvm::coro::Shape::SwitchLoweringStorage::HasUnwindCoroEnd, llvm::coro::Shape::SwitchFieldIndex::Resume, and llvm::coro::Shape::SwitchLowering.

Referenced by replaceUnwindCoroEnd().

maybeFreeRetconStorage()

static void maybeFreeRetconStorage ( IRBuilder<> &  Builder, const coro::Shape &  Shape, Value *  FramePtr, CallGraph *  CG  )

static

Definition at line 158 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::coro::Shape::emitDealloc(), FramePtr, llvm::coro::Shape::RetconLoweringStorage::IsFrameInlineInStorage, and llvm::coro::Shape::RetconLowering.

Referenced by replaceFallthroughCoroEnd(), and replaceUnwindCoroEnd().

postSplitCleanup()

static void postSplitCleanup ( Function &  F )

static

Definition at line 1145 of file CoroSplit.cpp.

References llvm::errs(), F, llvm::removeUnreachableBlocks(), llvm::report_fatal_error(), and llvm::verifyFunction().

Referenced by updateCallGraphAfterCoroutineSplit().

removeCoroEndsFromRampFunction()

Remove calls to llvm coro end in the original static function void removeCoroEndsFromRampFunction ( const coro::Shape &  Shape )

static

Definition at line 1954 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, Context, llvm::coro::Shape::CoroEnds, End, llvm::coro::Shape::FramePtr, llvm::ConstantInt::getFalse(), replaceCoroEnd(), and llvm::coro::Switch.

Referenced by doSplitCoroutine().

replaceAllPrepares()

static bool replaceAllPrepares ( Function *  PrepareFn, LazyCallGraph &  CG, LazyCallGraph::SCC &  C  )

static

Definition at line 2109 of file CoroSplit.cpp.

References llvm::CallingConv::C, llvm::make_early_inc_range(), P, replacePrepare(), and llvm::Value::uses().

Referenced by llvm::CoroSplitPass::run().

replaceAsyncResumeFunction()

static void replaceAsyncResumeFunction ( CoroSuspendAsyncInst *  Suspend, Value *  Continuation  )

static

Definition at line 1660 of file CoroSplit.cpp.

References Context, llvm::coro::Continuation, llvm::IRBuilderBase::CreateBitOrPointerCast(), llvm::PoisonValue::get(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), llvm::CoroSuspendAsyncInst::getResumeFunction(), llvm::PointerType::getUnqual(), llvm::Value::replaceAllUsesWith(), llvm::CoroSuspendAsyncInst::ResumeFunctionArg, and llvm::User::setOperand().

Referenced by llvm::coro::AsyncABI::splitCoroutine().

replaceCoroEnd()

static void replaceCoroEnd ( AnyCoroEndInst *  End, const coro::Shape &  Shape, Value *  FramePtr, bool  InResume, CallGraph *  CG  )

static

Definition at line 385 of file CoroSplit.cpp.

References Context, End, FramePtr, llvm::ConstantInt::getFalse(), llvm::ConstantInt::getTrue(), replaceFallthroughCoroEnd(), and replaceUnwindCoroEnd().

Referenced by removeCoroEndsFromRampFunction(), and llvm::coro::BaseCloner::replaceCoroEnds().

replaceCoroEndAsync()

static bool replaceCoroEndAsync ( AnyCoroEndInst *  End )

static

Replace an llvm.coro.end.async.

Will inline the must tail call function call if there is one.

Returns

true if cleanup of the coro.end block is needed, false otherwise.

Definition at line 171 of file CoroSplit.cpp.

References assert(), llvm::IRBuilderBase::CreateRetVoid(), End, llvm::InlineFunction(), and llvm::IRBuilderBase::SetInsertPoint().

Referenced by replaceFallthroughCoroEnd().

replaceFallthroughCoroEnd()

static void replaceFallthroughCoroEnd ( AnyCoroEndInst *  End, const coro::Shape &  Shape, Value *  FramePtr, bool  InResume, CallGraph *  CG  )

static

Replace a non-unwind call to llvm.coro.end.

Definition at line 214 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::IRBuilderBase::CreateInsertValue(), llvm::IRBuilderBase::CreateRet(), llvm::IRBuilderBase::CreateRetVoid(), End, FramePtr, llvm::ConstantTokenNone::get(), llvm::ConstantPointerNull::get(), llvm::PoisonValue::get(), llvm::coro::Shape::getResumeFunctionType(), llvm::FunctionType::getReturnType(), Idx, maybeFreeRetconStorage(), llvm::Value::replaceAllUsesWith(), replaceCoroEndAsync(), and RetTy.

Referenced by replaceCoroEnd().

replaceFrameSizeAndAlignment()

static void replaceFrameSizeAndAlignment ( coro::Shape &  Shape )

static

Definition at line 1121 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::coro::Async, llvm::coro::Shape::CoroAligns, llvm::coro::Shape::CoroSizes, llvm::Instruction::eraseFromParent(), llvm::coro::Shape::FrameAlign, getFrameSizeForShape(), llvm::Value::getType(), llvm::Value::replaceAllUsesWith(), updateAsyncFuncPointerContextSize(), and llvm::Align::value().

Referenced by doSplitCoroutine().

replacePrepare()

Replace a call to llvm coro prepare static retcon void replacePrepare ( CallInst *  Prepare, LazyCallGraph &  CG, LazyCallGraph::SCC &  C  )

static

Definition at line 2073 of file CoroSplit.cpp.

References llvm::Instruction::eraseFromParent(), llvm::CallBase::getArgOperand(), llvm::make_early_inc_range(), llvm::Value::replaceAllUsesWith(), llvm::Value::stripPointerCasts(), and llvm::Value::uses().

Referenced by replaceAllPrepares().

replaceSwiftErrorOps()

static void replaceSwiftErrorOps ( Function &  F, coro::Shape &  Shape, ValueToValueMapTy *  VMap  )

static

Definition at line 565 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::coro::Async, llvm::coro::Shape::CoroSuspends, llvm::IRBuilderBase::CreateAlloca(), llvm::IRBuilderBase::CreateLoad(), llvm::IRBuilderBase::CreateStore(), F, llvm::Value::getType(), llvm::AllocaInst::setSwiftError(), and llvm::coro::Shape::SwiftErrorOps.

Referenced by llvm::coro::BaseCloner::create(), doSplitCoroutine(), and llvm::coro::BaseCloner::replaceSwiftErrorOps().

replaceUnwindCoroEnd()

static void replaceUnwindCoroEnd ( AnyCoroEndInst *  End, const coro::Shape &  Shape, Value *  FramePtr, bool  InResume, CallGraph *  CG  )

static

Replace an unwind call to llvm.coro.end.

Definition at line 347 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::IRBuilderBase::CreateCleanupRet(), End, FramePtr, markCoroutineAsDone(), maybeFreeRetconStorage(), and llvm::LLVMContext::OB_funclet.

Referenced by replaceCoroEnd().

simplifySuspendPoint()

static bool simplifySuspendPoint ( CoroSuspendInst *  Suspend, CoroBeginInst *  CoroBegin  )

static

Definition at line 1261 of file CoroSplit.cpp.

References llvm::BranchInst::Create(), llvm::Instruction::eraseFromParent(), llvm::CallBase::getCalledOperand(), llvm::CoroSuspendInst::getCoroSave(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), llvm::ilist_node_with_parent< NodeTy, ParentTy, Options >::getPrevNode(), hasCallsBetween(), I, llvm::Value::replaceAllUsesWith(), and llvm::Value::stripPointerCasts().

Referenced by simplifySuspendPoints().

simplifySuspendPoints()

static void simplifySuspendPoints ( coro::Shape &  Shape )

static

Definition at line 1321 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::coro::Shape::CoroBegin, llvm::coro::Shape::CoroSuspends, llvm::coro::Shape::SwitchLoweringStorage::HasFinalSuspend, I, N, simplifySuspendPoint(), std::swap(), llvm::coro::Switch, and llvm::coro::Shape::SwitchLowering.

Referenced by doSplitCoroutine().

updateAsyncFuncPointerContextSize()

static void updateAsyncFuncPointerContextSize ( coro::Shape &  Shape )

static

Definition at line 1098 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::coro::Async, llvm::coro::Shape::AsyncLoweringStorage::AsyncFuncPointer, llvm::coro::Shape::AsyncLowering, llvm::coro::Shape::AsyncLoweringStorage::ContextSize, llvm::ConstantStruct::get(), llvm::GlobalVariable::getInitializer(), and llvm::GlobalVariable::setInitializer().

Referenced by replaceFrameSizeAndAlignment().

updateCallGraphAfterCoroutineSplit()

static LazyCallGraph::SCC & updateCallGraphAfterCoroutineSplit ( LazyCallGraph::Node &  N, const coro::Shape &  Shape, const SmallVectorImpl< Function * > &  Clones, LazyCallGraph::SCC &  C, LazyCallGraph &  CG, CGSCCAnalysisManager &  AM, CGSCCUpdateResult &  UR, FunctionAnalysisManager &  FAM  )

static

Definition at line 2034 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::LazyCallGraph::addSplitFunction(), llvm::LazyCallGraph::addSplitRefRecursiveFunctions(), llvm::coro::Async, llvm::CallingConv::C, llvm::SmallVectorBase< Size_T >::empty(), FAM, N, postSplitCleanup(), llvm::coro::Retcon, llvm::coro::RetconOnce, llvm::coro::Switch, llvm::updateCGAndAnalysisManagerForCGSCCPass(), and llvm::updateCGAndAnalysisManagerForFunctionPass().

Referenced by llvm::CoroSplitPass::run().

updateScopeLine()

static void updateScopeLine ( Instruction *  ActiveSuspend, DISubprogram &  SPToUpdate  )

static

Adjust the scope line of the funclet to the first line number after the suspend point.

This avoids a jump in the line table from the function declaration (where prologue instructions are attributed to) to the suspend point. Only adjust the scope line when the files are the same. If no candidate line number is found, fallback to the line of ActiveSuspend.

Definition at line 798 of file CoroSplit.cpp.

References DL, llvm::BasicBlock::end(), llvm::Instruction::getDebugLoc(), llvm::DIScope::getFile(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::ilist_node_with_parent< NodeTy, ParentTy, Options >::getNextNode(), llvm::skipDebugIntrinsics(), and llvm::Successor.

Referenced by llvm::coro::BaseCloner::create().