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 ()
static bool	declaresCoroElideIntrinsics (Module &M)

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

declaresCoroElideIntrinsics()

static bool declaresCoroElideIntrinsics ( Module &  M )

static

Definition at line 447 of file CoroElide.cpp.

References llvm::coro::declaresIntrinsics().

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

getFirstNonAllocaInTheEntryBlock()

static Instruction * getFirstNonAllocaInTheEntryBlock ( Function *  F )

static

Definition at line 117 of file CoroElide.cpp.

References F, I, and llvm_unreachable.

getFrameLayout()

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

static

Definition at line 108 of file CoroElide.cpp.

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

getOrCreateLogFile()

static std::unique_ptr< raw_fd_ostream > getOrCreateLogFile ( )

static

Definition at line 125 of file CoroElide.cpp.

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

operandReferences()

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

static

Definition at line 82 of file CoroElide.cpp.

References llvm::AAResults::isNoAlias(), and llvm::User::operand_values().

Referenced by removeTailCallAttribute().

removeTailCallAttribute()

static void removeTailCallAttribute ( AllocaInst *  Frame, AAResults &  AA  )

static

Definition at line 96 of file CoroElide.cpp.

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

replaceWithConstant()

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

static

Definition at line 59 of file CoroElide.cpp.

References assert(), llvm::ConstantExpr::getBitCast(), llvm::Value::getType(), I, llvm::Type::isPointerTy(), 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().