LLVM: lib/Target/PowerPC/PPCMIPeephole.cpp File Reference (original) (raw)

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Macros
#define	DEBUG_TYPE "ppc-mi-peepholes"
#define	addRegToUpdate(R)

Functions

Variables
static cl::opt< bool >	FixedPointRegToImm ("ppc-reg-to-imm-fixed-point", cl::Hidden, cl::init(true), cl::desc("Iterate to a fixed point when attempting to " "convert reg-reg instructions to reg-imm"))
static cl::opt< bool >	ConvertRegReg ("ppc-convert-rr-to-ri", cl::Hidden, cl::init(true), cl::desc("Convert eligible reg+reg instructions to reg+imm"))
static cl::opt< bool >	EnableSExtElimination ("ppc-eliminate-signext", cl::desc("enable elimination of sign-extensions"), cl::init(true), cl::Hidden)
static cl::opt< bool >	EnableZExtElimination ("ppc-eliminate-zeroext", cl::desc("enable elimination of zero-extensions"), cl::init(true), cl::Hidden)
static cl::opt< bool >	EnableTrapOptimization ("ppc-opt-conditional-trap", cl::desc("enable optimization of conditional traps"), cl::init(false), cl::Hidden)
	DEBUG_TYPE
PowerPC MI Peephole	Optimization
PowerPC MI Peephole	false

◆ addRegToUpdate

#define addRegToUpdate	(	R	)

◆ DEBUG_TYPE

#define DEBUG_TYPE "ppc-mi-peepholes"

◆ DEBUG_COUNTER() [1/2]

DEBUG_COUNTER	(	PeepholePerOpCounter	,
"ppc-per-op-peephole"	,
"Controls whether PPC per opcode peephole is performed on a MI"	)

◆ DEBUG_COUNTER() [2/2]

DEBUG_COUNTER	(	PeepholeXToICounter	,
"ppc-xtoi-peephole"	,
"Controls whether PPC reg+reg to reg+imm peephole is performed on a MI"	)

◆ INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	PPCMIPeephole	,
DEBUG_TYPE	,
"PowerPC MI Peephole Optimization"	,
false	,
false	)

◆ STATISTIC() [1/12]

STATISTIC	(	MultiTOCSaves	,
"Number of functions with multiple TOC saves that must be kept"	)

◆ STATISTIC() [2/12]

STATISTIC	(	NumConvertedToImmediateForm	,
"Number of instructions converted to their immediate form"	)

◆ STATISTIC() [3/12]

STATISTIC	(	NumEliminatedSExt	,
"Number of eliminated sign-extensions"	)

◆ STATISTIC() [4/12]

STATISTIC	(	NumEliminatedZExt	,
"Number of eliminated zero-extensions"	)

◆ STATISTIC() [5/12]

STATISTIC	(	NumEXTSWAndSLDICombined	,
"Number of pairs of EXTSW and SLDI combined as EXTSWSLI"	)

◆ STATISTIC() [6/12]

STATISTIC	(	NumFixedPointIterations	,
"Number of fixed-point iterations converting reg-reg instructions " "to reg-imm ones"	)

◆ STATISTIC() [7/12]

STATISTIC	(	NumFunctionsEnteredInMIPeephole	,
"Number of functions entered in PPC MI Peepholes"	)

◆ STATISTIC() [8/12]

STATISTIC	(	NumLoadImmZeroFoldedAndRemoved	,
"Number of LI(8)	reg,
0 that are folded to r0 and removed"	)

◆ STATISTIC() [9/12]

STATISTIC	(	NumOptADDLIs	,
"Number of optimized ADD instruction fed by LI"	)

◆ STATISTIC() [10/12]

STATISTIC	(	NumRotatesCollapsed	,
"Number of pairs of rotate	left,
clear left/right collapsed"	)

◆ STATISTIC() [11/12]

STATISTIC	(	NumTOCSavesInPrologue	,
"Number of TOC saves placed in the prologue"	)

◆ STATISTIC() [12/12]

STATISTIC	(	RemoveTOCSave	,
"Number of TOC saves removed"	)

◆ ConvertRegReg

cl::opt< bool > ConvertRegReg("ppc-convert-rr-to-ri", cl::Hidden, cl::init(true), cl::desc("Convert eligible reg+reg instructions to reg+imm")) ( "ppc-convert-rr-to-ri" , cl::Hidden , cl::init(true) , cl::desc("Convert eligible reg+reg instructions to reg+imm") )	static

◆ DEBUG_TYPE

◆ EnableSExtElimination

cl::opt< bool > EnableSExtElimination("ppc-eliminate-signext", cl::desc("enable elimination of sign-extensions"), cl::init(true), cl::Hidden) ( "ppc-eliminate-signext" , cl::desc("enable elimination of sign-extensions") , cl::init(true) , cl::Hidden )	static

◆ EnableTrapOptimization

◆ EnableZExtElimination

cl::opt< bool > EnableZExtElimination("ppc-eliminate-zeroext", cl::desc("enable elimination of zero-extensions"), cl::init(true), cl::Hidden) ( "ppc-eliminate-zeroext" , cl::desc("enable elimination of zero-extensions") , cl::init(true) , cl::Hidden )	static

◆ false

PowerPC MI Peephole false

◆ FixedPointRegToImm

cl::opt< bool > FixedPointRegToImm("ppc-reg-to-imm-fixed-point", cl::Hidden, cl::init(true), cl::desc("Iterate to a fixed point when attempting to " "convert reg-reg instructions to reg-imm")) ( "ppc-reg-to-imm-fixed-point" , cl::Hidden , cl::init(true) , cl::desc("Iterate to a fixed point when attempting to " "convert reg-reg instructions to reg-imm") )	static

◆ Optimization

PowerPC MI Peephole Optimization