BPFAbstractMemberAccess.cpp File Reference

#include "BPF.h"
#include "BPFCORE.h"
#include "BPFTargetMachine.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/DebugInfo/BTF/BTF.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicsBPF.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/PassManager.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/User.h"
#include "llvm/IR/Value.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include <stack>

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Macros
#define	DEBUG_TYPE   "bpf-abstract-member-access"

Functions
static bool	SkipDIDerivedTag (unsigned Tag, bool skipTypedef)
static DIType *	stripQualifiers (DIType *Ty, bool skipTypedef=true)
static const DIType *	stripQualifiers (const DIType *Ty)
static uint32_t	calcArraySize (const DICompositeType *CTy, uint32_t StartDim)
static Type *	getBaseElementType (const CallInst *Call)
static uint64_t	getConstant (const Value *IndexValue)
static void	replaceWithGEP (CallInst *Call, uint32_t DimensionIndex, uint32_t GEPIndex)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "bpf-abstract-member-access"

Definition at line 97 of file BPFAbstractMemberAccess.cpp.

Function Documentation

calcArraySize()

uint32_t calcArraySize ( const DICompositeType * CTy, uint32_t StartDim )

static

Definition at line 299 of file BPFAbstractMemberAccess.cpp.

References llvm::cast(), llvm::dyn_cast(), llvm::dyn_cast_or_null(), llvm::DISubrange::getCount(), llvm::DICompositeType::getElements(), and I.

getBaseElementType()

Type * getBaseElementType ( const CallInst * Call )

static

Definition at line 314 of file BPFAbstractMemberAccess.cpp.

References Call.

Referenced by replaceWithGEP().

getConstant()

uint64_t getConstant ( const Value * IndexValue )

static

Definition at line 319 of file BPFAbstractMemberAccess.cpp.

References assert(), llvm::dyn_cast(), llvm::ConstantInt::getValue(), and llvm::APInt::getZExtValue().

Referenced by replaceWithGEP().

replaceWithGEP()

void replaceWithGEP ( CallInst * Call, uint32_t DimensionIndex, uint32_t GEPIndex )

static

Definition at line 409 of file BPFAbstractMemberAccess.cpp.

References Call, llvm::GetElementPtrInst::CreateInBounds(), GEP, getBaseElementType(), getConstant(), llvm::Type::getInt32Ty(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by llvm::BPFCoreSharedInfo::removeArrayAccessCall(), and llvm::BPFCoreSharedInfo::removeStructAccessCall().

SkipDIDerivedTag()

bool SkipDIDerivedTag ( unsigned Tag, bool skipTypedef )

static

Definition at line 270 of file BPFAbstractMemberAccess.cpp.

Referenced by stripQualifiers(), and stripQualifiers().

stripQualifiers() [1/2]

const DIType * stripQualifiers ( const DIType * Ty )

static

Definition at line 290 of file BPFAbstractMemberAccess.cpp.

References llvm::dyn_cast(), llvm::DINode::getTag(), and SkipDIDerivedTag().

stripQualifiers() [2/2]

DIType * stripQualifiers ( DIType * Ty, bool skipTypedef = true )

static

Definition at line 281 of file BPFAbstractMemberAccess.cpp.

References llvm::dyn_cast(), llvm::DINode::getTag(), and SkipDIDerivedTag().