InlineCost.h File Reference

#include "llvm/ADT/APInt.h"
#include "llvm/ADT/STLFunctionalExtras.h"
#include "llvm/Analysis/InlineModelFeatureMaps.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Support/Compiler.h"
#include <cassert>
#include <climits>
#include <optional>

Go to the source code of this file.

Classes
class	llvm::CostBenefitPair
class	llvm::InlineCost
	Represents the cost of inlining a function. More...
class	llvm::InlineResult
	InlineResult is basically true or false. More...
struct	llvm::InlineParams
	Thresholds to tune inline cost analysis. More...
struct	llvm::InlineCostAnnotationPrinterPass

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.
namespace	llvm::InlineConstants

Functions
LLVM_ABI int	llvm::InlineConstants::getInstrCost ()
LLVM_ABI std::optional< int >	llvm::getStringFnAttrAsInt (CallBase &CB, StringRef AttrKind)
LLVM_ABI InlineParams	llvm::getInlineParams ()
	Generate the parameters to tune the inline cost analysis based only on the commandline options.
LLVM_ABI InlineParams	llvm::getInlineParams (int Threshold)
	Generate the parameters to tune the inline cost analysis based on command line options.
LLVM_ABI InlineParams	llvm::getInlineParams (unsigned OptLevel, unsigned SizeOptLevel)
	Generate the parameters to tune the inline cost analysis based on command line options.
LLVM_ABI int	llvm::getCallsiteCost (const TargetTransformInfo &TTI, const CallBase &Call, const DataLayout &DL)
	Return the cost associated with a callsite, including parameter passing and the call/return instruction.
LLVM_ABI InlineCost	llvm::getInlineCost (CallBase &Call, const InlineParams &Params, TargetTransformInfo &CalleeTTI, function_ref< AssumptionCache &(Function &)> GetAssumptionCache, function_ref< const TargetLibraryInfo &(Function &)> GetTLI, function_ref< BlockFrequencyInfo &(Function &)> GetBFI=nullptr, ProfileSummaryInfo *PSI=nullptr, OptimizationRemarkEmitter *ORE=nullptr, function_ref< EphemeralValuesCache &(Function &)> GetEphValuesCache=nullptr)
	Get an InlineCost object representing the cost of inlining this callsite.
LLVM_ABI InlineCost	llvm::getInlineCost (CallBase &Call, Function *Callee, const InlineParams &Params, TargetTransformInfo &CalleeTTI, function_ref< AssumptionCache &(Function &)> GetAssumptionCache, function_ref< const TargetLibraryInfo &(Function &)> GetTLI, function_ref< BlockFrequencyInfo &(Function &)> GetBFI=nullptr, ProfileSummaryInfo *PSI=nullptr, OptimizationRemarkEmitter *ORE=nullptr, function_ref< EphemeralValuesCache &(Function &)> GetEphValuesCache=nullptr)
	Get an InlineCost with the callee explicitly specified.
LLVM_ABI std::optional< InlineResult >	llvm::getAttributeBasedInliningDecision (CallBase &Call, Function *Callee, TargetTransformInfo &CalleeTTI, function_ref< const TargetLibraryInfo &(Function &)> GetTLI)
	Returns InlineResult::success() if the call site should be always inlined because of user directives, and the inlining is viable.
LLVM_ABI std::optional< int >	llvm::getInliningCostEstimate (CallBase &Call, TargetTransformInfo &CalleeTTI, function_ref< AssumptionCache &(Function &)> GetAssumptionCache, function_ref< BlockFrequencyInfo &(Function &)> GetBFI=nullptr, function_ref< const TargetLibraryInfo &(Function &)> GetTLI=nullptr, ProfileSummaryInfo *PSI=nullptr, OptimizationRemarkEmitter *ORE=nullptr)
	Get the cost estimate ignoring thresholds.
LLVM_ABI std::optional< InlineCostFeatures >	llvm::getInliningCostFeatures (CallBase &Call, TargetTransformInfo &CalleeTTI, function_ref< AssumptionCache &(Function &)> GetAssumptionCache, function_ref< BlockFrequencyInfo &(Function &)> GetBFI=nullptr, function_ref< const TargetLibraryInfo &(Function &)> GetTLI=nullptr, ProfileSummaryInfo *PSI=nullptr, OptimizationRemarkEmitter *ORE=nullptr)
	Get the expanded cost features.
LLVM_ABI InlineResult	llvm::isInlineViable (Function &Callee)
	Check if it is mechanically possible to inline the function Callee, based on the contents of the function.

Variables
const int	llvm::InlineConstants::OptSizeThreshold = 50
	Use when optsize (-Os) is specified.
const int	llvm::InlineConstants::OptMinSizeThreshold = 5
	Use when minsize (-Oz) is specified.
const int	llvm::InlineConstants::OptAggressiveThreshold = 250
	Use when -O3 is specified.
const int	llvm::InlineConstants::IndirectCallThreshold = 100
const int	llvm::InlineConstants::LoopPenalty = 25
const int	llvm::InlineConstants::ColdccPenalty = 2000
const unsigned	llvm::InlineConstants::TotalAllocaSizeRecursiveCaller = 1024
	Do not inline functions which allocate this many bytes on the stack when the caller is recursive.
const uint64_t	llvm::InlineConstants::MaxSimplifiedDynamicAllocaToInline = 65536
	Do not inline dynamic allocas that have been constant propagated to be static allocas above this amount in bytes.
const char	llvm::InlineConstants::FunctionInlineCostMultiplierAttributeName []
const char	llvm::InlineConstants::MaxInlineStackSizeAttributeName [] = "inline-max-stacksize"