CallBrPrepare.cpp File Reference

#include "llvm/CodeGen/CallBrPrepare.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/iterator.h"
#include "llvm/Analysis/CFG.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/SSAUpdater.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "callbr-prepare"

Functions
static bool	SplitCriticalEdges (ArrayRef< CallBrInst * > CBRs, DominatorTree &DT)
static bool	InsertIntrinsicCalls (ArrayRef< CallBrInst * > CBRs, DominatorTree &DT)
static void	UpdateSSA (DominatorTree &DT, CallBrInst *CBR, CallInst *Intrinsic, SSAUpdater &SSAUpdate)
static SmallVector< CallBrInst *, 2 >	FindCallBrs (Function &Fn)
	INITIALIZE_PASS_BEGIN (CallBrPrepare, "callbrprepare", "Prepare callbr", false, false) INITIALIZE_PASS_END(CallBrPrepare
static bool	IsInSameBasicBlock (const Use &U, const BasicBlock *BB)
static void	PrintDebugDomInfo (const DominatorTree &DT, const Use &U, const BasicBlock *BB, bool IsDefaultDest)

Variables
	callbrprepare
Prepare	callbr
Prepare	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "callbr-prepare"

Definition at line 55 of file CallBrPrepare.cpp.

Function Documentation

FindCallBrs()

SmallVector< CallBrInst *, 2 > FindCallBrs ( Function & Fn )

static

Definition at line 109 of file CallBrPrepare.cpp.

References llvm::dyn_cast(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by llvm::CallBrPreparePass::run().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	CallBrPrepare	,
		"callbrprepare"	,
		"Prepare callbr"	,
		false	,
		false	)

References INITIALIZE_PASS_DEPENDENCY.

InsertIntrinsicCalls()

bool InsertIntrinsicCalls ( ArrayRef< CallBrInst * > CBRs, DominatorTree & DT )

static

Definition at line 140 of file CallBrPrepare.cpp.

References llvm::SSAUpdater::AddAvailableValue(), Changed, llvm::SSAUpdater::Initialize(), llvm::SmallPtrSetImpl< PtrType >::insert(), and UpdateSSA().

Referenced by llvm::CallBrPreparePass::run().

IsInSameBasicBlock()

bool IsInSameBasicBlock ( const Use & U, const BasicBlock * BB )

static

Definition at line 167 of file CallBrPrepare.cpp.

References llvm::dyn_cast(), and I.

Referenced by UpdateSSA().

PrintDebugDomInfo()

void PrintDebugDomInfo ( const DominatorTree & DT, const Use & U, const BasicBlock * BB, bool IsDefaultDest )

static

Definition at line 173 of file CallBrPrepare.cpp.

References llvm::cast(), llvm::dbgs(), llvm::DominatorTree::dominates(), llvm::Value::getName(), llvm::isa(), and LLVM_DEBUG.

Referenced by UpdateSSA().

SplitCriticalEdges()

bool SplitCriticalEdges ( ArrayRef< CallBrInst * > CBRs, DominatorTree & DT )

static

Definition at line 118 of file CallBrPrepare.cpp.

References Changed, llvm::isCriticalEdge(), Options, and llvm::SplitKnownCriticalEdge().

Referenced by llvm::CallBrPreparePass::run().

UpdateSSA()

void UpdateSSA ( DominatorTree & DT, CallBrInst * CBR, CallInst * Intrinsic, SSAUpdater & SSAUpdate )

static

Definition at line 185 of file CallBrPrepare.cpp.

References llvm::DominatorTree::dominates(), llvm::dyn_cast(), llvm::CallBrInst::getDefaultDest(), II, llvm::SmallPtrSetImpl< PtrType >::insert(), IsInSameBasicBlock(), llvm::make_pointer_range(), PrintDebugDomInfo(), llvm::SSAUpdater::RewriteUse(), Uses, and llvm::Value::uses().

Referenced by InsertIntrinsicCalls().

Variable Documentation

callbr

Prepare callbr

Definition at line 100 of file CallBrPrepare.cpp.

callbrprepare

callbrprepare

Definition at line 100 of file CallBrPrepare.cpp.

false

Prepare false

Definition at line 100 of file CallBrPrepare.cpp.