BPFCheckAndAdjustIR.cpp File Reference

#include "BPF.h"
#include "BPFCORE.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicsBPF.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"

Go to the source code of this file.

Classes
struct	MinMaxSinkInfo

Macros
#define	DEBUG_TYPE   "bpf-check-and-opt-ir"

Functions
	INITIALIZE_PASS (BPFCheckAndAdjustIR, DEBUG_TYPE, "BPF Check And Adjust IR", false, false) ModulePass *llvm
static bool	sinkMinMaxInBB (BasicBlock &BB, const std::function< bool(Instruction *)> &Filter)
static void	unrollGEPLoad (CallInst *Call)
static void	unrollGEPStore (CallInst *Call)
static bool	removeGEPBuiltinsInFunc (Function &F)
static Value *	aspaceWrapValue (DenseMap< Value *, Value * > &Cache, Function *F, Value *ToWrap)
static void	aspaceWrapOperand (DenseMap< Value *, Value * > &Cache, Instruction *I, unsigned OpNum)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "bpf-check-and-opt-ir"

Definition at line 36 of file BPFCheckAndAdjustIR.cpp.

Function Documentation

aspaceWrapOperand()

static void aspaceWrapOperand ( DenseMap< Value *, Value * > &  Cache, Instruction *  I, unsigned  OpNum  )

static

Definition at line 460 of file BPFCheckAndAdjustIR.cpp.

References aspaceWrapValue(), llvm::Type::getPointerAddressSpace(), llvm::Value::getType(), and I.

aspaceWrapValue()

static Value * aspaceWrapValue ( DenseMap< Value *, Value * > &  Cache, Function *  F, Value *  ToWrap  )

static

Definition at line 428 of file BPFCheckAndAdjustIR.cpp.

References aspaceWrapValue(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), F, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), GEP, llvm::Value::getName(), and Ptr.

Referenced by aspaceWrapOperand(), and aspaceWrapValue().

INITIALIZE_PASS()

INITIALIZE_PASS	(	BPFCheckAndAdjustIR	,
		DEBUG_TYPE	,
		"BPF Check And Adjust IR"	,
		false	,
		false
	)

Definition at line 62 of file BPFCheckAndAdjustIR.cpp.

removeGEPBuiltinsInFunc()

static bool removeGEPBuiltinsInFunc ( Function &  F )

static

Definition at line 383 of file BPFCheckAndAdjustIR.cpp.

References llvm::SmallVectorBase< Size_T >::empty(), F, llvm::for_each(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), unrollGEPLoad(), and unrollGEPStore().

sinkMinMaxInBB()

static bool sinkMinMaxInBB ( BasicBlock &  BB, const std::function< bool(Instruction *)> &  Filter  )

static

Definition at line 185 of file BPFCheckAndAdjustIR.cpp.

References A, assert(), B, llvm::IRBuilderBase::CreateICmp(), llvm::IRBuilderBase::CreateLogicalAnd(), llvm::IRBuilderBase::CreateLogicalOr(), llvm::IRBuilderBase::CreateSExt(), llvm::IRBuilderBase::CreateZExt(), llvm::Filter, llvm::First, llvm::User::getOperand(), llvm::CmpInst::getPredicate(), I, Info, llvm::ICmpInst::isGE(), llvm::ICmpInst::isGT(), llvm::ICmpInst::isLE(), llvm::ICmpInst::isLT(), llvm::ICmpInst::isRelational(), LHS, P, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::Value::replaceAllUsesWith(), RHS, ToRemove, and X.

unrollGEPLoad()

static void unrollGEPLoad ( CallInst *  Call )

static

Definition at line 368 of file BPFCheckAndAdjustIR.cpp.

References GEP, and llvm::BPFPreserveStaticOffsetPass::reconstructLoad().

Referenced by removeGEPBuiltinsInFunc().

unrollGEPStore()

static void unrollGEPStore ( CallInst *  Call )

static

Definition at line 376 of file BPFCheckAndAdjustIR.cpp.

References GEP, and llvm::BPFPreserveStaticOffsetPass::reconstructStore().

Referenced by removeGEPBuiltinsInFunc().