StableFunctionMap.cpp File Reference

#include "llvm/CGData/StableFunctionMap.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/CGData/StableFunctionMapRecord.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "stable-function-map"

Typedefs
using	ParamLocs = SmallVector<IndexPair>

Functions
static void	removeIdenticalIndexPair (StableFunctionMap::StableFunctionEntries &SFS)
static bool	isProfitable (const StableFunctionMap::StableFunctionEntries &SFS)

Variables
static cl::opt< unsigned >	GlobalMergingMinMerges ("global-merging-min-merges", cl::desc("Minimum number of similar functions with " "the same hash required for merging."), cl::init(2), cl::Hidden)
static cl::opt< unsigned >	GlobalMergingMinInstrs ("global-merging-min-instrs", cl::desc("The minimum instruction count required when merging functions."), cl::init(1), cl::Hidden)
static cl::opt< unsigned >	GlobalMergingMaxParams ("global-merging-max-params", cl::desc("The maximum number of parameters allowed when merging functions."), cl::init(std::numeric_limits< unsigned >::max()), cl::Hidden)
static cl::opt< bool >	GlobalMergingSkipNoParams ("global-merging-skip-no-params", cl::desc("Skip merging functions with no parameters."), cl::init(true), cl::Hidden)
static cl::opt< double >	GlobalMergingInstOverhead ("global-merging-inst-overhead", cl::desc("The overhead cost associated with each instruction when lowering " "to machine instruction."), cl::init(1.2), cl::Hidden)
static cl::opt< double >	GlobalMergingParamOverhead ("global-merging-param-overhead", cl::desc("The overhead cost associated with each parameter when merging " "functions."), cl::init(2.0), cl::Hidden)
static cl::opt< double >	GlobalMergingCallOverhead ("global-merging-call-overhead", cl::desc("The overhead cost associated with each " "function call when merging functions."), cl::init(1.0), cl::Hidden)
static cl::opt< double >	GlobalMergingExtraThreshold ("global-merging-extra-threshold", cl::desc("An additional cost threshold that must be exceeded for merging " "to be considered beneficial."), cl::init(0.0), cl::Hidden)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "stable-function-map"

Definition at line 22 of file StableFunctionMap.cpp.

Typedef Documentation

ParamLocs

using ParamLocs = SmallVector<IndexPair>

Definition at line 173 of file StableFunctionMap.cpp.

Function Documentation

isProfitable()

bool isProfitable ( const StableFunctionMap::StableFunctionEntries & SFS )

static

Definition at line 202 of file StableFunctionMap.cpp.

References llvm::SmallSet< T, N, C >::clear(), llvm::dbgs(), GlobalMergingCallOverhead, GlobalMergingExtraThreshold, GlobalMergingInstOverhead, GlobalMergingMaxParams, GlobalMergingMinInstrs, GlobalMergingMinMerges, GlobalMergingParamOverhead, GlobalMergingSkipNoParams, llvm::SmallSet< T, N, C >::insert(), LLVM_DEBUG, llvm::SmallSet< T, N, C >::size(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

Referenced by llvm::StableFunctionMap::finalize().

removeIdenticalIndexPair()

void removeIdenticalIndexPair ( StableFunctionMap::StableFunctionEntries & SFS )

static

Definition at line 175 of file StableFunctionMap.cpp.

References llvm::SmallVectorImpl< T >::emplace_back(), llvm::SmallVectorImpl< T >::erase(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

Referenced by llvm::StableFunctionMap::finalize().

Variable Documentation

GlobalMergingCallOverhead

cl::opt< double > GlobalMergingCallOverhead("global-merging-call-overhead", cl::desc("The overhead cost associated with each " "function call when merging functions."), cl::init(1.0), cl::Hidden) ( "global-merging-call-overhead" , cl::desc("The overhead cost associated with each " "function call when merging functions.") , cl::init(1.0) , cl::Hidden  )

static

Referenced by isProfitable().

GlobalMergingExtraThreshold

cl::opt< double > GlobalMergingExtraThreshold("global-merging-extra-threshold", cl::desc("An additional cost threshold that must be exceeded for merging " "to be considered beneficial."), cl::init(0.0), cl::Hidden) ( "global-merging-extra-threshold" , cl::desc("An additional cost threshold that must be exceeded for merging " "to be considered beneficial.") , cl::init(0.0) , cl::Hidden  )

static

Referenced by isProfitable().

GlobalMergingInstOverhead

cl::opt< double > GlobalMergingInstOverhead("global-merging-inst-overhead", cl::desc("The overhead cost associated with each instruction when lowering " "to machine instruction."), cl::init(1.2), cl::Hidden) ( "global-merging-inst-overhead" , cl::desc("The overhead cost associated with each instruction when lowering " "to machine instruction.") , cl::init(1.2) , cl::Hidden  )

static

Referenced by isProfitable().

GlobalMergingMaxParams

cl::opt< unsigned > GlobalMergingMaxParams("global-merging-max-params", cl::desc( "The maximum number of parameters allowed when merging functions."), cl::init(std::numeric_limits< unsigned >::max()), cl::Hidden) ( "global-merging-max-params" , cl::desc( "The maximum number of parameters allowed when merging functions.") , cl::init(std::numeric_limits< unsigned >::max()) , cl::Hidden  )

static

Referenced by isProfitable().

GlobalMergingMinInstrs

cl::opt< unsigned > GlobalMergingMinInstrs("global-merging-min-instrs", cl::desc("The minimum instruction count required when merging functions."), cl::init(1), cl::Hidden) ( "global-merging-min-instrs" , cl::desc("The minimum instruction count required when merging functions.") , cl::init(1) , cl::Hidden  )

static

Referenced by isProfitable().

GlobalMergingMinMerges

cl::opt< unsigned > GlobalMergingMinMerges("global-merging-min-merges", cl::desc("Minimum number of similar functions with " "the same hash required for merging."), cl::init(2), cl::Hidden) ( "global-merging-min-merges" , cl::desc("Minimum number of similar functions with " "the same hash required for merging.") , cl::init(2) , cl::Hidden  )

static

Referenced by isProfitable().

GlobalMergingParamOverhead

cl::opt< double > GlobalMergingParamOverhead("global-merging-param-overhead", cl::desc("The overhead cost associated with each parameter when merging " "functions."), cl::init(2.0), cl::Hidden) ( "global-merging-param-overhead" , cl::desc("The overhead cost associated with each parameter when merging " "functions.") , cl::init(2.0) , cl::Hidden  )

static

Referenced by isProfitable().

GlobalMergingSkipNoParams

cl::opt< bool > GlobalMergingSkipNoParams("global-merging-skip-no-params", cl::desc("Skip merging functions with no parameters."), cl::init(true), cl::Hidden) ( "global-merging-skip-no-params" , cl::desc("Skip merging functions with no parameters.") , cl::init(true) , cl::Hidden  )

static

Referenced by isProfitable().