#include "llvm/CodeGen/GlobalISel/GISelKnownBits.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/CodeGen/GlobalISel/Utils.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/IR/Module.h"

Macros
#define	DEBUG_TYPE "gisel-known-bits"
	Provides analysis for querying information about KnownBits during GISel passes.

Functions
	INITIALIZE_PASS (GISelKnownBitsAnalysis, DEBUG_TYPE, "Analysis for ComputingKnownBits", false, true) GISelKnownBits

static LLVM_ATTRIBUTE_UNUSED void	dumpResult (const MachineInstr &MI, const KnownBits &Known, unsigned Depth)

static KnownBits	extractBits (unsigned BitWidth, const KnownBits &SrcOpKnown, const KnownBits &OffsetKnown, const KnownBits &WidthKnown)

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE "gisel-known-bits"

Provides analysis for querying information about KnownBits during GISel passes.

Definition at line 22 of file GISelKnownBits.cpp.

Function Documentation

◆ dumpResult()

static LLVM_ATTRIBUTE_UNUSED void dumpResult	(	const MachineInstr &	MI,
		const KnownBits &	Known,
		unsigned	Depth
	)

static

Definition at line 92 of file GISelKnownBits.cpp.

References llvm::dbgs(), llvm::Depth, MI, llvm::KnownBits::One, llvm::dwarf::toString(), and llvm::KnownBits::Zero.

Referenced by llvm::GISelKnownBits::computeKnownBitsImpl().

◆ extractBits()

static KnownBits extractBits	(	unsigned	BitWidth,
		const KnownBits &	SrcOpKnown,
		const KnownBits &	OffsetKnown,
		const KnownBits &	WidthKnown
	)

static

Definition at line 124 of file GISelKnownBits.cpp.

References llvm::BitWidth, llvm::APInt::getBitsSetFrom(), llvm::APInt::getLimitedValue(), llvm::APInt::getLowBitsSet(), llvm::KnownBits::getMaxValue(), llvm::KnownBits::getMinValue(), and llvm::KnownBits::lshr().

Referenced by combineX86ShufflesRecursively(), and llvm::GISelKnownBits::computeKnownBitsImpl().

◆ INITIALIZE_PASS()

INITIALIZE_PASS	(	GISelKnownBitsAnalysis	,
		DEBUG_TYPE	,
		"Analysis for ComputingKnownBits"	,
		false	,
		true
	)

Definition at line 28 of file GISelKnownBits.cpp.