DataLayout.cpp File Reference

#include "llvm/IR/DataLayout.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Triple.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/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <cstdlib>
#include <tuple>
#include <utility>

Include dependency graph for DataLayout.cpp:

Go to the source code of this file.

Functions
static std::pair< StringRef, StringRef >	split (StringRef Str, char Separator)
	Checked version of split, to ensure mandatory subparts. More...
static unsigned	getInt (StringRef R)
	Get an unsigned integer, including error checks. More...
static unsigned	inBytes (unsigned Bits)
	Convert bits into bytes. Assert if not a byte width multiple. More...
static unsigned	getAddrSpace (StringRef R)

Variables
static const LayoutAlignElem	DefaultAlignments []

Function Documentation

getAddrSpace()

static unsigned getAddrSpace ( StringRef  R )

static

Definition at line 229 of file DataLayout.cpp.

References llvm::AGGREGATE_ALIGN, llvm::StringRef::empty(), llvm::FLOAT_ALIGN, llvm::StringRef::front(), getInt(), inBytes(), llvm::INTEGER_ALIGN, llvm::isPowerOf2_64(), llvm_unreachable, llvm::report_fatal_error(), Size, llvm::StringRef::size(), split(), llvm::StringRef::substr(), and llvm::VECTOR_ALIGN.

Referenced by llvm::SIInstrInfo::isStackAccess(), and llvm::AMDGPUInstructionSelector::select().

getInt()

static unsigned getInt ( StringRef  R )

static

Get an unsigned integer, including error checks.

Definition at line 214 of file DataLayout.cpp.

References error, llvm::StringRef::getAsInteger(), and llvm::report_fatal_error().

Referenced by getAddrSpace(), llvm::PointerIntPair< llvm::IntrusiveBackListNode *, 1 >::getInt(), llvm::UnderlyingObject::mayAlias(), and llvm::HexagonTargetLowering::shouldExpandAtomicRMWInIR().

inBytes()

static unsigned inBytes ( unsigned  Bits )

static

Convert bits into bytes. Assert if not a byte width multiple.

Definition at line 223 of file DataLayout.cpp.

References llvm::report_fatal_error().

Referenced by getAddrSpace().

split()

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

static

Checked version of split, to ensure mandatory subparts.

Definition at line 203 of file DataLayout.cpp.

References assert(), llvm::StringRef::empty(), llvm::report_fatal_error(), and llvm::StringRef::split().

Referenced by getAddrSpace().

Variable Documentation

DefaultAlignments

const LayoutAlignElem DefaultAlignments[]

static

Initial value:

= {
  { INTEGER_ALIGN, 1, 1, 1 },    
  { INTEGER_ALIGN, 8, 1, 1 },    
  { INTEGER_ALIGN, 16, 2, 2 },   
  { INTEGER_ALIGN, 32, 4, 4 },   
  { INTEGER_ALIGN, 64, 4, 8 },   
  { FLOAT_ALIGN, 16, 2, 2 },     
  { FLOAT_ALIGN, 32, 4, 4 },     
  { FLOAT_ALIGN, 64, 8, 8 },     
  { FLOAT_ALIGN, 128, 16, 16 },  
  { VECTOR_ALIGN, 64, 8, 8 },    
  { VECTOR_ALIGN, 128, 16, 16 }, 
  { AGGREGATE_ALIGN, 0, 0, 8 }   
}

Definition at line 164 of file DataLayout.cpp.