LLVM: lib/CodeGen/MachineFunctionSplitter.cpp File Reference (original) (raw)

Go to the source code of this file.

Functions
static void	setDescendantEHBlocksCold (MachineFunction &MF)
	setDescendantEHBlocksCold - This splits all EH pads and blocks reachable only by EH pad as cold.

static void	finishAdjustingBasicBlocksAndLandingPads (MachineFunction &MF)

static bool	isColdBlock (const MachineBasicBlock &MBB, const MachineBlockFrequencyInfo MBFI, ProfileSummaryInfo PSI)

	INITIALIZE_PASS (MachineFunctionSplitter, "machine-function-splitter", "Split machine functions using profile information", false, false) MachineFunctionPass *llvm

Variables
static cl::opt< unsigned >	PercentileCutoff ("mfs-psi-cutoff", cl::desc("Percentile profile summary cutoff used to " "determine cold blocks. Unused if set to zero."), cl::init(999950), cl::Hidden)

static cl::opt< unsigned >	ColdCountThreshold ("mfs-count-threshold", cl::desc("Minimum number of times a block must be executed to be retained."), cl::init(1), cl::Hidden)

static cl::opt< bool >	SplitAllEHCode ("mfs-split-ehcode", cl::desc("Splits all EH code and it's descendants by default."), cl::init(false), cl::Hidden)

◆ finishAdjustingBasicBlocksAndLandingPads()

static void finishAdjustingBasicBlocksAndLandingPads ( MachineFunction & MF)	static

◆ INITIALIZE_PASS()

INITIALIZE_PASS	(	MachineFunctionSplitter	,
"machine-function-splitter"	,
"Split machine functions using profile information"	,
false	,
false
)

◆ isColdBlock()

◆ setDescendantEHBlocksCold()

◆ ColdCountThreshold

cl::opt< unsigned > ColdCountThreshold("mfs-count-threshold", cl::desc( "Minimum number of times a block must be executed to be retained."), cl::init(1), cl::Hidden) ( "mfs-count-threshold" , cl::desc( "Minimum number of times a block must be executed to be retained.") , cl::init(1) , cl::Hidden )	static

◆ PercentileCutoff

cl::opt< unsigned > PercentileCutoff("mfs-psi-cutoff", cl::desc("Percentile profile summary cutoff used to " "determine cold blocks. Unused if set to zero."), cl::init(999950), cl::Hidden) ( "mfs-psi-cutoff" , cl::desc("Percentile profile summary cutoff used to " "determine cold blocks. Unused if set to zero.") , cl::init(999950) , cl::Hidden )	static

◆ SplitAllEHCode

cl::opt< bool > SplitAllEHCode("mfs-split-ehcode", cl::desc("Splits all EH code and it's descendants by default."), cl::init(false), cl::Hidden) ( "mfs-split-ehcode" , cl::desc("Splits all EH code and it's descendants by default.") , cl::init(false) , cl::Hidden )	static