CoroElide.cpp File Reference

#include "llvm/Transforms/Coroutines/CoroElide.h"
#include "CoroInternal.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
#include <optional>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "coro-elide"

Functions
	STATISTIC (NumOfCoroElided, "The # of coroutine get elided.")
static void	replaceWithConstant (Constant *Value, SmallVectorImpl< CoroSubFnInst * > &Users)
static bool	operandReferences (CallInst *CI, AllocaInst *Frame, AAResults &AA)
static void	removeTailCallAttribute (AllocaInst *Frame, AAResults &AA)
static std::optional< std::pair< uint64_t, Align > >	getFrameLayout (Function *Resume)
static Instruction *	getFirstNonAllocaInTheEntryBlock (Function *F)
static std::unique_ptr< raw_fd_ostream >	getOrCreateLogFile ()

Variables
static cl::opt< std::string >	CoroElideInfoOutputFilename ("coro-elide-info-output-file", cl::value_desc("filename"), cl::desc("File to record the coroutines got elided"), cl::Hidden)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "coro-elide"

Definition at line 24 of file CoroElide.cpp.

Function Documentation

getFirstNonAllocaInTheEntryBlock()

Instruction * getFirstNonAllocaInTheEntryBlock ( Function * F )

static

Definition at line 124 of file CoroElide.cpp.

References F, I, llvm::isa(), and llvm_unreachable.

getFrameLayout()

std::optional< std::pair< uint64_t, Align > > getFrameLayout ( Function * Resume )

static

Definition at line 115 of file CoroElide.cpp.

References llvm::Function::getParamAlign(), llvm::Function::getParamDereferenceableBytes(), Size, and llvm::MaybeAlign::valueOrOne().

getOrCreateLogFile()

std::unique_ptr< raw_fd_ostream > getOrCreateLogFile ( )

static

Definition at line 132 of file CoroElide.cpp.

References assert(), CoroElideInfoOutputFilename, llvm::errs(), and llvm::sys::fs::OF_Append.

operandReferences()

bool operandReferences ( CallInst * CI, AllocaInst * Frame, AAResults & AA )

static

Definition at line 89 of file CoroElide.cpp.

References llvm::User::operand_values().

Referenced by removeTailCallAttribute().

removeTailCallAttribute()

void removeTailCallAttribute ( AllocaInst * Frame, AAResults & AA )

static

Definition at line 103 of file CoroElide.cpp.

References Call, llvm::dyn_cast(), F, llvm::Instruction::getFunction(), I, instructions, and operandReferences().

replaceWithConstant()

void replaceWithConstant ( Constant * Value, SmallVectorImpl< CoroSubFnInst * > & Users )

static

Definition at line 82 of file CoroElide.cpp.

References I, llvm::replaceAndRecursivelySimplify(), and Users.

STATISTIC()

STATISTIC	(	NumOfCoroElided	,
		"The # of coroutine get elided."	)

Variable Documentation

CoroElideInfoOutputFilename

cl::opt< std::string > CoroElideInfoOutputFilename("coro-elide-info-output-file", cl::value_desc("filename"), cl::desc("File to record the coroutines got elided"), cl::Hidden) ( "coro-elide-info-output-file" , cl::value_desc("filename") , cl::desc("File to record the coroutines got elided") , cl::Hidden  )

static

Referenced by getOrCreateLogFile().