DataLayout.cpp File Reference

#include "llvm/IR/DataLayout.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/GetElementPtrTypeIterator.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MemAlloc.h"
#include "llvm/Support/TypeSize.h"
#include "llvm/TargetParser/Triple.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <cstdlib>
#include <new>
#include <utility>

Go to the source code of this file.

Functions
static Error	reportError (const Twine &Message)
static Error	split (StringRef Str, char Separator, std::pair< StringRef, StringRef > &Split)
	Checked version of split, to ensure mandatory subparts.
template<typename IntTy >
static Error	getInt (StringRef R, IntTy &Result)
	Get an unsigned integer, including error checks.
template<typename IntTy >
static Error	getIntInBytes (StringRef R, IntTy &Result)
	Get an unsigned integer representing the number of bits and convert it into bytes.
static Error	getAddrSpace (StringRef R, unsigned &AddrSpace)
static SmallVectorImpl< LayoutAlignElem >::const_iterator	findAlignmentLowerBound (const SmallVectorImpl< LayoutAlignElem > &Alignments, uint32_t BitWidth)
static APInt	getElementIndex (TypeSize ElemSize, APInt &Offset)

Variables
static const std::pair< AlignTypeEnum, LayoutAlignElem >	DefaultAlignments []

Function Documentation

findAlignmentLowerBound()

static SmallVectorImpl< LayoutAlignElem >::const_iterator findAlignmentLowerBound ( const SmallVectorImpl< LayoutAlignElem > &  Alignments, uint32_t  BitWidth  )

static

Definition at line 579 of file DataLayout.cpp.

References llvm::BitWidth, E, and llvm::partition_point().

getAddrSpace()

static Error getAddrSpace ( StringRef  R, unsigned &  AddrSpace  )

static

Definition at line 266 of file DataLayout.cpp.

References getInt(), reportError(), and llvm::Error::success().

Referenced by llvm::AMDGPUTargetLowering::isSDNodeAlwaysUniform().

getElementIndex()

static APInt getElementIndex ( TypeSize  ElemSize, APInt &  Offset  )

static

Definition at line 946 of file DataLayout.cpp.

References assert(), llvm::BitWidth, llvm::APInt::getZero(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::isScalable(), llvm::isUIntN(), and llvm::Offset.

Referenced by llvm::DataLayout::getGEPIndexForOffset(), and llvm::DataLayout::getGEPIndicesForOffset().

getInt()

template<typename IntTy >

static Error getInt ( StringRef  R, IntTy &  Result  )

static

Get an unsigned integer, including error checks.

Definition at line 247 of file DataLayout.cpp.

References error, reportError(), and llvm::Error::success().

Referenced by getAddrSpace().

getIntInBytes()

template<typename IntTy >

static Error getIntInBytes ( StringRef  R, IntTy &  Result  )

static

Get an unsigned integer representing the number of bits and convert it into bytes.

Error out of not a byte width multiple.

Definition at line 257 of file DataLayout.cpp.

References reportError(), and llvm::Error::success().

reportError()

static Error reportError ( const Twine &  Message )

static

Definition at line 230 of file DataLayout.cpp.

References llvm::createStringError(), and llvm::inconvertibleErrorCode().

split()

static Error split ( StringRef  Str, char  Separator, std::pair< StringRef, StringRef > &  Split  )

static

Checked version of split, to ensure mandatory subparts.

Definition at line 235 of file DataLayout.cpp.

References assert(), reportError(), and llvm::Error::success().

Referenced by llvm::StringRef::split().

Variable Documentation

DefaultAlignments

const std::pair<AlignTypeEnum, LayoutAlignElem> DefaultAlignments[]

static

Initial value:

= {
    {INTEGER_ALIGN, {1, Align(1), Align(1)}},    
    {INTEGER_ALIGN, {8, Align(1), Align(1)}},    
    {INTEGER_ALIGN, {16, Align(2), Align(2)}},   
    {INTEGER_ALIGN, {32, Align(4), Align(4)}},   
    {INTEGER_ALIGN, {64, Align(4), Align(8)}},   
    {FLOAT_ALIGN, {16, Align(2), Align(2)}},     
    {FLOAT_ALIGN, {32, Align(4), Align(4)}},     
    {FLOAT_ALIGN, {64, Align(8), Align(8)}},     
    {FLOAT_ALIGN, {128, Align(16), Align(16)}},  
    {VECTOR_ALIGN, {64, Align(8), Align(8)}},    
    {VECTOR_ALIGN, {128, Align(16), Align(16)}}, 
}

Definition at line 181 of file DataLayout.cpp.

Referenced by llvm::DataLayout::reset().