#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>

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 InRamp, CallGraph *CG)
	Replace a non-unwind call to llvm.coro.end.
static Value *	createSwitchIndexPtr (const coro::Shape &Shape, IRBuilder<> &Builder, Value *FramePtr)
	Create a pointer to the switch index field in the coroutine frame.
static void	markCoroutineAsDone (IRBuilder<> &Builder, const coro::Shape &Shape, Value *FramePtr)
static void	replaceUnwindCoroEnd (AnyCoroEndInst End, const coro::Shape &Shape, Value FramePtr, bool InRamp, CallGraph *CG)
	Replace an unwind call to llvm.coro.end.
static void	replaceCoroEnd (AnyCoroEndInst End, const coro::Shape &Shape, Value FramePtr, bool InRamp, 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 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)
static void	coerceArguments (IRBuilder<> &Builder, FunctionType FnTy, ArrayRef< Value > FnArgs, SmallVectorImpl< Value * > &CallArgs)
	Coerce the arguments in `FnArgs` according to `FnTy` in `CallArgs`.
static void	removeCoroEndsFromRampFunction (const coro::Shape &Shape)
	Remove calls to llvm.coro.end in the original function.
static void	removeCoroIsInRampFromRampFunction (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)
static void	replacePrepare (CallInst *Prepare, LazyCallGraph &CG, LazyCallGraph::SCC &C)
	Replace a call to llvm.coro.prepare.retcon.
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()

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

static

Definition at line 864 of file CoroSplit.cpp.

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

◆ addFramePointerAttrs()

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

static

Definition at line 849 of file CoroSplit.cpp.

References Size.

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

◆ addPrepareFunction()

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

static

Definition at line 2133 of file CoroSplit.cpp.

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

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

◆ addSwiftSelfAttrs()

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

static

Definition at line 871 of file CoroSplit.cpp.

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

◆ coerceArguments()

void coerceArguments	(	IRBuilder<> &	Builder,
		FunctionType *	FnTy,
		ArrayRef< Value * >	FnArgs,
		SmallVectorImpl< Value * > &	CallArgs )

static

Coerce the arguments in FnArgs according to FnTy in CallArgs.

Definition at line 1680 of file CoroSplit.cpp.

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

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

◆ collectDbgVariableRecords()

SmallVector< DbgVariableRecord * > collectDbgVariableRecords ( Function & F )

static

Returns all debug records in F.

Definition at line 627 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()

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

static

Definition at line 444 of file CoroSplit.cpp.

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

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

◆ CreateNewABI()

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 2142 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::SmallVectorTemplateCommon< T, typename >::size(), and llvm::coro::Switch.

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

◆ createSwitchIndexPtr()

Value * createSwitchIndexPtr	(	const coro::Shape &	Shape,
		IRBuilder<> &	Builder,
		Value *	FramePtr )

static

Create a pointer to the switch index field in the coroutine frame.

Definition at line 305 of file CoroSplit.cpp.

References FramePtr, llvm::Type::getInt64Ty(), llvm::coro::Shape::SwitchLoweringStorage::IndexOffset, llvm::Offset, and llvm::coro::Shape::SwitchLowering.

Referenced by markCoroutineAsDone().

◆ doSplitCoroutine()

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

static

◆ getFunctionTypeFromAsyncSuspend()

FunctionType * getFunctionTypeFromAsyncSuspend ( AnyCoroSuspendInst * Suspend )

static

Definition at line 436 of file CoroSplit.cpp.

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

Referenced by createCloneDeclaration().

◆ handleNoSuspendCoroutine()

void handleNoSuspendCoroutine ( coro::Shape & Shape )

static

Definition at line 1160 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::coro::Async, llvm::coro::Shape::CoroBegin, llvm::coro::elideCoroFree(), llvm::Instruction::eraseFromParent(), llvm::coro::Shape::FrameAlign, llvm::coro::Shape::FrameSize, llvm::ArrayType::get(), llvm::PoisonValue::get(), llvm::AnyCoroIdInst::getCoroAlloc(), llvm::Type::getInt8Ty(), llvm::coro::Shape::getSwitchCoroId(), llvm::coro::Retcon, llvm::coro::RetconOnce, and llvm::coro::Switch.

Referenced by doSplitCoroutine().

◆ hasCallsBetween()

bool hasCallsBetween	(	Instruction *	Save,
		Instruction *	ResumeOrDestroy )

static

Definition at line 1238 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()

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

static

Definition at line 1197 of file CoroSplit.cpp.

References I, and llvm::isa().

Referenced by hasCallsBetween(), and hasCallsInBlocksBetween().

◆ hasCallsInBlocksBetween()

bool hasCallsInBlocksBetween	(	BasicBlock *	SaveBB,
		BasicBlock *	ResDesBB )

static

Definition at line 1209 of file CoroSplit.cpp.

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

Referenced by hasCallsBetween().

◆ hasSafeElideCaller()

bool hasSafeElideCaller ( Function & F )

static

Definition at line 1978 of file CoroSplit.cpp.

References llvm::dyn_cast(), and F.

Referenced by doSplitCoroutine().

◆ lowerAwaitSuspend()

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

static

◆ lowerAwaitSuspends()

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

static

Definition at line 151 of file CoroSplit.cpp.

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

Referenced by doSplitCoroutine().

◆ markCoroutineAsDone()

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

static

Definition at line 320 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::cast(), llvm::coro::Shape::CoroSuspends, createSwitchIndexPtr(), FramePtr, llvm::ConstantPointerNull::get(), llvm::coro::Shape::getIndex(), llvm::coro::Shape::getSwitchResumePointerType(), llvm::coro::Shape::SwitchLoweringStorage::HasFinalSuspend, llvm::coro::Shape::SwitchLoweringStorage::HasUnwindCoroEnd, llvm::coro::Switch, and llvm::coro::Shape::SwitchLowering.

Referenced by replaceUnwindCoroEnd().

◆ maybeFreeRetconStorage()

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

static

Definition at line 157 of file CoroSplit.cpp.

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

Referenced by replaceFallthroughCoroEnd(), and replaceUnwindCoroEnd().

◆ postSplitCleanup()

void postSplitCleanup ( Function & F )

static

Definition at line 1146 of file CoroSplit.cpp.

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

Referenced by updateCallGraphAfterCoroutineSplit().

◆ removeCoroEndsFromRampFunction()

void removeCoroEndsFromRampFunction ( const coro::Shape & Shape )

static

Remove calls to llvm.coro.end in the original function.

Definition at line 1959 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::coro::Shape::CoroEnds, llvm::Instruction::eraseFromParent(), llvm::coro::Shape::FramePtr, replaceCoroEnd(), and llvm::coro::Switch.

Referenced by doSplitCoroutine().

◆ removeCoroIsInRampFromRampFunction()

void removeCoroIsInRampFromRampFunction ( const coro::Shape & Shape )

static

Definition at line 1970 of file CoroSplit.cpp.

References llvm::coro::Shape::CoroIsInRampInsts, llvm::ConstantInt::getTrue(), and II.

Referenced by doSplitCoroutine().

◆ replaceAllPrepares()

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

static

Definition at line 2120 of file CoroSplit.cpp.

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

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

◆ replaceAsyncResumeFunction()

void replaceAsyncResumeFunction	(	CoroSuspendAsyncInst *	Suspend,
		Value *	Continuation )

static

Definition at line 1665 of file CoroSplit.cpp.

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

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

◆ replaceCoroEnd()

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

static

Definition at line 386 of file CoroSplit.cpp.

References llvm::Instruction::eraseFromParent(), FramePtr, llvm::AnyCoroEndInst::isUnwind(), replaceFallthroughCoroEnd(), and replaceUnwindCoroEnd().

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

◆ replaceCoroEndAsync()

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 170 of file CoroSplit.cpp.

References assert(), llvm::cast(), llvm::dyn_cast(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and llvm::InlineFunction().

Referenced by replaceFallthroughCoroEnd().

◆ replaceFallthroughCoroEnd()

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

static

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

Definition at line 213 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::coro::Async, llvm::cast(), llvm::dyn_cast(), FramePtr, llvm::ConstantPointerNull::get(), llvm::ConstantTokenNone::get(), llvm::PoisonValue::get(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), llvm::coro::Shape::getResumeFunctionType(), llvm::FunctionType::getReturnType(), maybeFreeRetconStorage(), replaceCoroEndAsync(), llvm::coro::Retcon, llvm::coro::RetconOnce, and llvm::coro::Switch.

Referenced by replaceCoroEnd().

◆ replaceFrameSizeAndAlignment()

void replaceFrameSizeAndAlignment ( coro::Shape & Shape )

static

Definition at line 1122 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, llvm::coro::Shape::FrameSize, llvm::TypeSize::getFixed(), llvm::Value::getType(), llvm::Value::replaceAllUsesWith(), updateAsyncFuncPointerContextSize(), and llvm::Align::value().

Referenced by doSplitCoroutine().

◆ replacePrepare()

void replacePrepare	(	CallInst *	Prepare,
		LazyCallGraph &	CG,
		LazyCallGraph::SCC &	C )

static

Replace a call to llvm.coro.prepare.retcon.

Definition at line 2084 of file CoroSplit.cpp.

References llvm::CallingConv::C, llvm::dyn_cast(), 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()

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

static

Definition at line 569 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::coro::Async, llvm::cast(), llvm::coro::Shape::CoroSuspends, F, llvm::Value::getType(), llvm::Value::replaceAllUsesWith(), and llvm::coro::Shape::SwiftErrorOps.

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

◆ replaceUnwindCoroEnd()

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

static

Replace an unwind call to llvm.coro.end.

Definition at line 349 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, llvm::coro::Async, llvm::cast(), FramePtr, llvm::CallBase::getOperandBundle(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), markCoroutineAsDone(), maybeFreeRetconStorage(), llvm::LLVMContext::OB_funclet, llvm::coro::Retcon, llvm::coro::RetconOnce, and llvm::coro::Switch.

Referenced by replaceCoroEnd().

◆ simplifySuspendPoint()

bool simplifySuspendPoint	(	CoroSuspendInst *	Suspend,
		CoroBeginInst *	CoroBegin )

static

Definition at line 1265 of file CoroSplit.cpp.

References llvm::UncondBrInst::Create(), llvm::dyn_cast(), 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()

void simplifySuspendPoints ( coro::Shape & Shape )

static

Definition at line 1325 of file CoroSplit.cpp.

References llvm::coro::Shape::ABI, assert(), llvm::cast(), 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()

void updateAsyncFuncPointerContextSize ( coro::Shape & Shape )

static

Definition at line 1107 of file CoroSplit.cpp.

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

Referenced by replaceFrameSizeAndAlignment().

◆ updateCallGraphAfterCoroutineSplit()

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 2045 of file CoroSplit.cpp.

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

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

◆ updateScopeLine()

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 802 of file CoroSplit.cpp.

References DL, llvm::dyn_cast_or_null(), 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().

Macros

Functions

Macro Definition Documentation

◆ DEBUG_TYPE

Function Documentation

◆ addAsyncContextAttrs()

◆ addFramePointerAttrs()

◆ addPrepareFunction()

◆ addSwiftSelfAttrs()

◆ coerceArguments()

◆ collectDbgVariableRecords()

◆ createCloneDeclaration()

◆ CreateNewABI()

◆ createSwitchIndexPtr()

◆ doSplitCoroutine()

◆ getFunctionTypeFromAsyncSuspend()

◆ handleNoSuspendCoroutine()

◆ hasCallsBetween()

◆ hasCallsInBlockBetween()

◆ hasCallsInBlocksBetween()

◆ hasSafeElideCaller()

◆ lowerAwaitSuspend()

◆ lowerAwaitSuspends()

◆ markCoroutineAsDone()

◆ maybeFreeRetconStorage()

◆ postSplitCleanup()

◆ removeCoroEndsFromRampFunction()

◆ removeCoroIsInRampFromRampFunction()

◆ replaceAllPrepares()

◆ replaceAsyncResumeFunction()

◆ replaceCoroEnd()

◆ replaceCoroEndAsync()

◆ replaceFallthroughCoroEnd()

◆ replaceFrameSizeAndAlignment()

◆ replacePrepare()

◆ replaceSwiftErrorOps()

◆ replaceUnwindCoroEnd()

◆ simplifySuspendPoint()

◆ simplifySuspendPoints()

◆ updateAsyncFuncPointerContextSize()

◆ updateCallGraphAfterCoroutineSplit()

◆ updateScopeLine()