#include <Operator.h>

Inheritance diagram for llvm::GEPOperator:

Collaboration diagram for llvm::GEPOperator:

Public Member Functions
bool	isInBounds () const
op_iterator	idx_begin ()
const_op_iterator	idx_begin () const
op_iterator	idx_end ()
const_op_iterator	idx_end () const
Value *	getPointerOperand ()
const Value *	getPointerOperand () const
Type *	getPointerOperandType () const
unsigned	getPointerAddressSpace () const
unsigned	getNumIndices () const
bool	hasIndices () const
bool	hasAllZeroIndices () const
bool	hasAllConstantIndices () const
bool	accumulateConstantOffset (const DataLayout &DL, APInt &Offset) const
	Accumulate the constant address offset of this GEP if possible.
Static Public Member Functions
static unsigned	getPointerOperandIndex ()
Friends
class	GetElementPtrInst
class	ConstantExpr

Detailed Description

Definition at line 368 of file Operator.h.

Member Function Documentation

bool llvm::GEPOperator::accumulateConstantOffset	(	const DataLayout &	DL,
		APInt &	Offset
	)		const `[inline]`

Accumulate the constant address offset of this GEP if possible.

This routine accepts an APInt into which it will accumulate the constant offset of this GEP if the GEP is in fact constant. If the GEP is not all-constant, it returns false and the value of the offset APInt is undefined (it is *not* preserved!). The APInt passed into this routine must be at exactly as wide as the IntPtr type for the address space of the base GEP pointer.

Definition at line 455 of file Operator.h.

References llvm::dyn_cast(), llvm::gep_type_begin(), llvm::gep_type_end(), llvm::APInt::getBitWidth(), llvm::StructLayout::getElementOffset(), llvm::DataLayout::getPointerSizeInBits(), llvm::DataLayout::getStructLayout(), llvm::DataLayout::getTypeAllocSize(), llvm::ConstantInt::getValue(), llvm::ConstantInt::getZExtValue(), llvm::ConstantInt::isZero(), and llvm::APInt::sextOrTrunc().

Referenced by IsConstantOffsetFromGlobal(), and llvm::ObjectSizeOffsetVisitor::visitGEPOperator().

unsigned llvm::GEPOperator::getNumIndices ( ) const [inline]

Definition at line 415 of file Operator.h.

References llvm::User::getNumOperands().

unsigned llvm::GEPOperator::getPointerAddressSpace ( ) const [inline]

getPointerAddressSpace - Method to return the address space of the pointer operand.

Definition at line 411 of file Operator.h.

Referenced by DecomposeGEPExpression(), and isGEPKnownNonNull().

Value* llvm::GEPOperator::getPointerOperand ( ) [inline]

Definition at line 393 of file Operator.h.

References llvm::User::getOperand().

Referenced by llvm::DependenceAnalysis::depends(), llvm::DependenceAnalysis::getSplitIteration(), isGEPKnownNonNull(), llvm::ObjectSizeOffsetVisitor::visitGEPOperator(), and llvm::ObjectSizeOffsetEvaluator::visitGEPOperator().

const Value* llvm::GEPOperator::getPointerOperand ( ) const [inline]

Definition at line 396 of file Operator.h.

References llvm::User::getOperand().

static unsigned llvm::GEPOperator::getPointerOperandIndex ( ) [inline, static]

Definition at line 399 of file Operator.h.

Type* llvm::GEPOperator::getPointerOperandType ( ) const [inline]

getPointerOperandType - Method to return the pointer operand as a PointerType.

Definition at line 405 of file Operator.h.

References getPointerOperand().

Referenced by llvm::DependenceAnalysis::depends(), and llvm::DependenceAnalysis::getSplitIteration().

bool llvm::GEPOperator::hasAllConstantIndices ( ) const [inline]

hasAllConstantIndices - Return true if all of the indices of this GEP are constant integers. If so, the result pointer and the first operand have a constant offset between them.

Definition at line 439 of file Operator.h.

References I.

Referenced by llvm::InstCombiner::FoldGEPICmp().

bool llvm::GEPOperator::hasAllZeroIndices ( ) const [inline]

hasAllZeroIndices - Return true if all of the indices of this GEP are zeros. If so, the result pointer and the first operand have the same value, just potentially different types.

Definition at line 426 of file Operator.h.

References llvm::CallingConv::C, and I.

Referenced by DecomposeGEPExpression(), evaluateICmpRelation(), llvm::InstCombiner::FoldGEPICmp(), and shouldMergeGEPs().

bool llvm::GEPOperator::hasIndices ( ) const [inline]

Definition at line 419 of file Operator.h.

References llvm::User::getNumOperands().

op_iterator llvm::GEPOperator::idx_begin ( ) [inline]

Definition at line 388 of file Operator.h.

References llvm::User::op_begin().

Referenced by llvm::DependenceAnalysis::depends(), and llvm::DependenceAnalysis::getSplitIteration().

const_op_iterator llvm::GEPOperator::idx_begin ( ) const [inline]

Definition at line 389 of file Operator.h.