#include "llvm/iOperators.h"
#include "llvm/iPHINode.h"
#include "llvm/Module.h"
-#include <string.h>
+#include "llvm/Instruction.h"
#include <stdio.h>
#define INSERT_LOAD_COUNT
static void getTriggerCode(Module *M, BasicBlock *BB, int MethNo, Value *pathNo,
- Value *cnt, Instruction *InsertPos){
- static int i=-1;
- i++;
- char gstr[100];
- sprintf(gstr,"globalVar%d",i);
- std::string globalVarName=gstr;
+ Value *cnt){
+
vector<const Type*> args;
//args.push_back(PointerType::get(Type::SByteTy));
args.push_back(Type::IntTy);
args.push_back(Type::IntTy);
- args.push_back(Type::IntTy);
+ //args.push_back(Type::IntTy);
+ args.push_back(PointerType::get(Type::IntTy));
const FunctionType *MTy = FunctionType::get(Type::VoidTy, args, false);
- // Function *triggerMeth = M->getOrInsertFunction("trigger", MTy);
Function *trigMeth = M->getOrInsertFunction("trigger", MTy);
assert(trigMeth && "trigger method could not be inserted!");
- //if (Value *triggerMeth = ST->lookup(PointerType::get(MTy), "trigger")) {
- //Function *trigMeth = cast<Function>(triggerMeth);
- vector<Value *> trargs;
-
- //pred_iterator piter=BB->pred_begin();
- //std::string predName = "uu";//BB->getName();
- //Constant *bbName=ConstantArray::get(predName);//BB->getName());
- //GlobalVariable *gbl=new GlobalVariable(ArrayType::get(Type::SByteTy,
- // predName.size()+1),
- // true, true, bbName, gstr);
-
- //M->getGlobalList().push_back(gbl);
- vector<Value *> elargs;
- elargs.push_back(ConstantUInt::get(Type::UIntTy, 0));
- elargs.push_back(ConstantUInt::get(Type::UIntTy, 0));
-
- // commented out bb name frm which its called
- //Instruction *getElmntInst=new GetElementPtrInst(gbl,elargs,"elmntInst");
-
- //trargs.push_back(ConstantArray::get(BB->getName()));
-
- //trargs.push_back(getElmntInst);
- //trargs.push_back(bbName);
+ vector<Value *> trargs;
trargs.push_back(ConstantSInt::get(Type::IntTy,MethNo));
-
- //trargs.push_back(ConstantSInt::get(Type::IntTy,-1));//erase this
trargs.push_back(pathNo);
trargs.push_back(cnt);
- Instruction *callInst=new CallInst(trigMeth, trargs, "", InsertPos);
+
+ Instruction *callInst=new CallInst(trigMeth, trargs, "");//, BB->begin());
+ BB->getInstList().push_back(callInst);
+ //triggerInst = new CallInst(trigMeth, trargs, "");//, InsertPos);
}
//get the code to be inserted on the edge
//This is determined from cond (1-6)
-void getEdgeCode::getCode(Instruction *rInst,
- Instruction *countInst,
- Function *M,
- BasicBlock *BB, int numPaths, int MethNo){
+void getEdgeCode::getCode(Instruction *rInst, Instruction *countInst,
+ Function *M, BasicBlock *BB,
+ vector<Value *> &retVec){
- Instruction *InsertPos = BB->begin();
+ //Instruction *InsertPos = BB->getInstList().begin();
+ //now check for cdIn and cdOut
+ //first put cdOut
+ if(cdOut!=NULL){
+ cdOut->getCode(rInst, countInst, M, BB, retVec);
+ }
+
+ if(cdIn!=NULL){
+ cdIn->getCode(rInst, countInst, M, BB, retVec);
+ }
+
//case: r=k code to be inserted
switch(cond){
case 1:{
Value *val=ConstantSInt::get(Type::IntTy,inc);
#ifdef INSERT_STORE
- Instruction *stInst=new StoreInst(val, rInst, InsertPos);
+ Instruction *stInst=new StoreInst(val, rInst);//, InsertPos);
+ BB->getInstList().push_back(stInst);
#endif
break;
}
//case: r=0 to be inserted
- case 2:
+ case 2:{
#ifdef INSERT_STORE
- new StoreInst(ConstantSInt::getNullValue(Type::IntTy), rInst, InsertPos);
+ Instruction *stInst = new StoreInst(ConstantSInt::getNullValue(Type::IntTy), rInst);//, InsertPos);
+ BB->getInstList().push_back(stInst);
#endif
break;
+ }
//r+=k
case 3:{
- Instruction *ldInst = new LoadInst(rInst, "ti1", InsertPos);
+ Instruction *ldInst = new LoadInst(rInst, "ti1");//, InsertPos);
+ BB->getInstList().push_back(ldInst);
Value *val = ConstantSInt::get(Type::IntTy,inc);
- Value *addIn = BinaryOperator::create(Instruction::Add, ldInst, val,
- "ti2", InsertPos);
+ Instruction *addIn = BinaryOperator::create(Instruction::Add, ldInst, val,
+ "ti2");//, InsertPos);
+ BB->getInstList().push_back(addIn);
#ifdef INSERT_STORE
- new StoreInst(addIn, rInst, InsertPos);
+ Instruction *stInst = new StoreInst(addIn, rInst);//, InsertPos);
+ BB->getInstList().push_back(stInst);
#endif
break;
}
//count[inc]++
case 4:{
- assert(inc>=0 && inc<=numPaths && "inc out of bound!");
-
Instruction *Idx = new GetElementPtrInst(countInst,
- vector<Value*>(1,ConstantUInt::get(Type::UIntTy, inc)),
- "", InsertPos);
+ vector<Value*>(1,ConstantSInt::get(Type::LongTy, inc)),
+ "");//, InsertPos);
+ BB->getInstList().push_back(Idx);
- Instruction *ldInst=new LoadInst(Idx, "ti1", InsertPos);
+ Instruction *ldInst=new LoadInst(Idx, "ti1");//, InsertPos);
+ BB->getInstList().push_back(ldInst);
Value *val = ConstantSInt::get(Type::IntTy, 1);
- Instruction *addIn =
- BinaryOperator::create(Instruction::Add, ldInst, val,"ti2", InsertPos);
+ //Instruction *addIn =
+ Instruction *newCount =
+ BinaryOperator::create(Instruction::Add, ldInst, val,"ti2");
+ BB->getInstList().push_back(newCount);
+
#ifdef INSERT_STORE
- Instruction *stInst=new StoreInst(addIn, Idx, InsertPos);
+ //Instruction *stInst=new StoreInst(addIn, Idx, InsertPos);
+ Instruction *stInst=new StoreInst(newCount, Idx);//, InsertPos);
+ BB->getInstList().push_back(stInst);
#endif
+
+ Value *trAddIndex = ConstantSInt::get(Type::IntTy,inc);
+ retVec.push_back(newCount);
+ retVec.push_back(trAddIndex);
//insert trigger
- getTriggerCode(M->getParent(), BB, MethNo,
- ConstantSInt::get(Type::IntTy,inc), addIn, InsertPos);
+ //getTriggerCode(M->getParent(), BB, MethNo,
+ // ConstantSInt::get(Type::IntTy,inc), newCount, triggerInst);
//end trigger code
assert(inc>=0 && "IT MUST BE POSITIVE NOW");
case 5:{
//ti1=inc+r
- Instruction *ldIndex=new LoadInst(rInst, "ti1", InsertPos);
+ Instruction *ldIndex=new LoadInst(rInst, "ti1");//, InsertPos);
+ BB->getInstList().push_back(ldIndex);
+
Value *val=ConstantSInt::get(Type::IntTy,inc);
Instruction *addIndex=BinaryOperator::
- create(Instruction::Add, ldIndex, val,"ti2", InsertPos);
- //erase following 1 line
- //Value *valtemp=ConstantSInt::get(Type::IntTy,999);
- //now load count[addIndex]
+ create(Instruction::Add, ldIndex, val,"ti2");//, InsertPos);
+ BB->getInstList().push_back(addIndex);
+ //now load count[addIndex]
Instruction *castInst=new CastInst(addIndex,
- Type::UIntTy,"ctin", InsertPos);
+ Type::LongTy,"ctin");//, InsertPos);
+ BB->getInstList().push_back(castInst);
+
Instruction *Idx = new GetElementPtrInst(countInst,
- vector<Value*>(1,castInst), "",
- InsertPos);
+ vector<Value*>(1,castInst), "");//,
+ // InsertPos);
+ BB->getInstList().push_back(Idx);
+
+ Instruction *ldInst=new LoadInst(Idx, "ti3");//, InsertPos);
+ BB->getInstList().push_back(ldInst);
- Instruction *ldInst=new LoadInst(Idx, "ti3", InsertPos);
Value *cons=ConstantSInt::get(Type::IntTy,1);
//count[addIndex]++
- Value *addIn = BinaryOperator::create(Instruction::Add, ldInst, cons,
- "ti4", InsertPos);
+ Instruction *newCount = BinaryOperator::create(Instruction::Add, ldInst,
+ cons,"");
+ BB->getInstList().push_back(newCount);
#ifdef INSERT_STORE
- ///*
- new StoreInst(addIn, Idx, InsertPos);
- //*/
+ Instruction *stInst = new StoreInst(newCount, Idx);//, InsertPos);
+ BB->getInstList().push_back(stInst);
#endif
+ retVec.push_back(newCount);
+ retVec.push_back(addIndex);
//insert trigger
- getTriggerCode(M->getParent(), BB, MethNo, addIndex, addIn, InsertPos);
+ //getTriggerCode(M->getParent(), BB, MethNo, addIndex, newCount, triggerInst);
//end trigger code
break;
//case: count[r]+
case 6:{
//ti1=inc+r
- Instruction *ldIndex=new LoadInst(rInst, "ti1", InsertPos);
-
+ Instruction *ldIndex=new LoadInst(rInst, "ti1");//, InsertPos);
+ BB->getInstList().push_back(ldIndex);
+
//now load count[addIndex]
- Instruction *castInst2=new CastInst(ldIndex, Type::UIntTy,"ctin",InsertPos);
+ Instruction *castInst2=new CastInst(ldIndex, Type::LongTy,"ctin");
+ BB->getInstList().push_back(castInst2);
+
Instruction *Idx = new GetElementPtrInst(countInst,
- vector<Value*>(1,castInst2), "",
- InsertPos);
+ vector<Value*>(1,castInst2), "");
+ BB->getInstList().push_back(Idx);
- Instruction *ldInst=new LoadInst(Idx, "ti2", InsertPos);
+ Instruction *ldInst=new LoadInst(Idx, "ti2");//, InsertPos);
+ BB->getInstList().push_back(ldInst);
+
Value *cons=ConstantSInt::get(Type::IntTy,1);
//count[addIndex]++
- Instruction *addIn=BinaryOperator::create(Instruction::Add, ldInst,
- cons,"ti3", InsertPos);
+ Instruction *newCount = BinaryOperator::create(Instruction::Add, ldInst,
+ cons,"ti3");
+ BB->getInstList().push_back(newCount);
#ifdef INSERT_STORE
- new StoreInst(addIn, Idx, InsertPos);
+ Instruction *stInst = new StoreInst(newCount, Idx);//, InsertPos);
+ BB->getInstList().push_back(stInst);
#endif
- //insert trigger
- getTriggerCode(M->getParent(), BB, MethNo, ldIndex, addIn, InsertPos);
- //end trigger code
-
+
+ retVec.push_back(newCount);
+ retVec.push_back(ldIndex);
break;
}
}
- //now check for cdIn and cdOut
- //first put cdOut
- if(cdIn!=NULL){
- cdIn->getCode(rInst, countInst, M, BB, numPaths, MethNo);
- }
- if(cdOut!=NULL){
- cdOut->getCode(rInst, countInst, M, BB, numPaths, MethNo);
- }
}
void insertInTopBB(BasicBlock *front,
int k,
Instruction *rVar,
- Instruction *countVar){
+ Instruction *countVar, Value *threshold){
//rVar is variable r,
//countVar is array Count, and these are allocatted outside
Value *Int0 = ConstantInt::get(Type::IntTy, 0);
- //store uint 0, uint *%R, uint 0
- vector<Value *> idx;
- idx.push_back(ConstantUInt::get(Type::UIntTy, 0));
-
//now push all instructions in front of the BB
BasicBlock::iterator here=front->begin();
front->getInstList().insert(here, rVar);
//Initialize Count[...] with 0
- for (int i=0;i<k; i++){
- Value *GEP2 = new GetElementPtrInst(countVar,
- vector<Value *>(1,ConstantUInt::get(Type::UIntTy, i)),
- "", here);
- new StoreInst(Int0, GEP2, here);
- }
+ //for (int i=0;i<k; i++){
+ //Value *GEP2 = new GetElementPtrInst(countVar,
+ // vector<Value *>(1,ConstantSInt::get(Type::LongTy, i)),
+ // "", here);
+ //new StoreInst(Int0, GEP2, here);
+ //}
+
+ //store uint 0, uint *%R
+ new StoreInst(Int0, rVar, here);
+
+ //insert initialize function for initializing
+ vector<const Type*> inCountArgs;
+ inCountArgs.push_back(PointerType::get(Type::IntTy));
+ inCountArgs.push_back(Type::IntTy);
+
+ const FunctionType *cFty = FunctionType::get(Type::VoidTy, inCountArgs,
+ false);
+ Function *inCountMth = front->getParent()->getParent()->getOrInsertFunction("llvmInitializeCounter", cFty);
+ assert(inCountMth && "Initialize method could not be inserted!");
+
+ vector<Value *> iniArgs;
+ iniArgs.push_back(countVar);
+ iniArgs.push_back(ConstantSInt::get(Type::IntTy, k));
+ new CallInst(inCountMth, iniArgs, "", here);
+
- Instruction *GEP = new GetElementPtrInst(rVar, idx, "", here);
- new StoreInst(Int0, GEP, here);
+ if(front->getParent()->getName() == "main"){
+ //intialize threshold
+ vector<const Type*> initialize_args;
+ initialize_args.push_back(PointerType::get(Type::IntTy));
+
+ const FunctionType *Fty = FunctionType::get(Type::VoidTy, initialize_args,
+ false);
+ Function *initialMeth = front->getParent()->getParent()->getOrInsertFunction("reoptimizerInitialize", Fty);
+ assert(initialMeth && "Initialize method could not be inserted!");
+
+ vector<Value *> trargs;
+ trargs.push_back(threshold);
+
+ new CallInst(initialMeth, trargs, "", here);
+ }
}
getEdgeCode *edgeCode,
Instruction *rInst,
Instruction *countInst,
- int numPaths, int Methno){
- static int i=-1;
- i++;
+ int numPaths, int Methno, Value *threshold){
+
BasicBlock* BB1=ed.getFirst()->getElement();
BasicBlock* BB2=ed.getSecond()->getElement();
cerr<<"########################\n";
#endif
- char counterstr[100];
- sprintf(counterstr,"counter%d",i);
- std::string ctr=counterstr;
-
//We need to insert a BB between BB1 and BB2
TerminatorInst *TI=BB1->getTerminator();
- BasicBlock *newBB=new BasicBlock(ctr, BB1->getParent());
+ BasicBlock *newBB=new BasicBlock("counter", BB1->getParent());
//get code for the new BB
- edgeCode->getCode(rInst, countInst, BB1->getParent(), newBB, numPaths, Methno);
-
- //Is terminator a branch instruction?
- //then we need to change branch destinations to include new BB
+ vector<Value *> retVec;
+
+ edgeCode->getCode(rInst, countInst, BB1->getParent(), newBB, retVec);
- //std::cerr<<"before cast!\n";
- //std::cerr<<"Method no in Edgecode:"<<Methno<<"\n";
- //std::cerr<<"Instruction\n";
- //std::cerr<<*TI;
BranchInst *BI = cast<BranchInst>(TI);
+ //Is terminator a branch instruction?
+ //then we need to change branch destinations to include new BB
+
if(BI->isUnconditional()){
BI->setUnconditionalDest(newBB);
- Instruction *newBI2=new BranchInst(BB2);
- newBB->getInstList().push_back(newBI2);
}
else{
if(BI->getSuccessor(0)==BB2)
if(BI->getSuccessor(1)==BB2)
BI->setSuccessor(1, newBB);
+ }
+ BasicBlock *triggerBB = NULL;
+ if(retVec.size()>0){
+ triggerBB = new BasicBlock("trigger", BB1->getParent());
+ getTriggerCode(BB1->getParent()->getParent(), triggerBB, Methno,
+ retVec[1], countInst);//retVec[0]);
+
+ //Instruction *castInst = new CastInst(retVec[0], Type::IntTy, "");
+ Instruction *etr = new LoadInst(threshold, "threshold");
+
+ //std::cerr<<"type1: "<<etr->getType()<<" type2: "<<retVec[0]->getType()<<"\n";
+ Instruction *cmpInst = new SetCondInst(Instruction::SetLE, etr,
+ retVec[0], "");
+ Instruction *newBI2 = new BranchInst(triggerBB, BB2, cmpInst);
+ //newBB->getInstList().push_back(castInst);
+ newBB->getInstList().push_back(etr);
+ newBB->getInstList().push_back(cmpInst);
+ newBB->getInstList().push_back(newBI2);
+
+ //triggerBB->getInstList().push_back(triggerInst);
+ Instruction *triggerBranch = new BranchInst(BB2);
+ triggerBB->getInstList().push_back(triggerBranch);
+ }
+ else{
Instruction *newBI2=new BranchInst(BB2);
newBB->getInstList().push_back(newBI2);
}
-
- //std::cerr<<"After casting\n";
- //get code for the new BB
- //now iterate over BB2, and set its Phi nodes right
+
+ //now iterate over BB2, and set its Phi nodes right
for(BasicBlock::iterator BB2Inst = BB2->begin(), BBend = BB2->end();
BB2Inst != BBend; ++BB2Inst){
int bbIndex=phiInst->getBasicBlockIndex(BB1);
assert(bbIndex>=0);
phiInst->setIncomingBlock(bbIndex, newBB);
+
+ ///check if trigger!=null, then add value corresponding to it too!
+ if(retVec.size()>0){
+ assert(triggerBB && "BasicBlock with trigger should not be null!");
+ Value *vl = phiInst->getIncomingValue((unsigned int)bbIndex);
+ phiInst->addIncoming(vl, triggerBB);
+ }
}
}
}
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