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IRBuilder has grown all sorts of useful utility functions. Make use of them to

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clean up this code a tiny bit. No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176168 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2013-02-27 05:46:30 +00:00
parent e7c52282dd
commit bd2d1245e7
1 changed files with 16 additions and 25 deletions
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41
lib/Transforms/Instrumentation/GCOVProfiling.cpp
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@ -469,21 +469,18 @@ bool GCOVProfiler::emitProfileArcs() {
Value *Counter = Builder.CreateConstInBoundsGEP2_64(Counters, 0,
Edge);
Value *Count = Builder.CreateLoad(Counter);
Count = Builder.CreateAdd(Count,
ConstantInt::get(Type::getInt64Ty(*Ctx),1));
Count = Builder.CreateAdd(Count, Builder.getInt64(1));
Builder.CreateStore(Count, Counter);
} else if (BranchInst *BI = dyn_cast<BranchInst>(TI)) {
Value *Sel = Builder.CreateSelect(
BI->getCondition(),
ConstantInt::get(Type::getInt64Ty(*Ctx), Edge),
ConstantInt::get(Type::getInt64Ty(*Ctx), Edge + 1));
Value *Sel = Builder.CreateSelect(BI->getCondition(),
Builder.getInt64(Edge),
Builder.getInt64(Edge + 1));
SmallVector<Value *, 2> Idx;
Idx.push_back(Constant::getNullValue(Type::getInt64Ty(*Ctx)));
Idx.push_back(Builder.getInt64(0));
Idx.push_back(Sel);
Value *Counter = Builder.CreateInBoundsGEP(Counters, Idx);
Value *Count = Builder.CreateLoad(Counter);
Count = Builder.CreateAdd(Count,
ConstantInt::get(Type::getInt64Ty(*Ctx),1));
Count = Builder.CreateAdd(Count, Builder.getInt64(1));
Builder.CreateStore(Count, Counter);
} else {
ComplexEdgePreds.insert(BB);
@ -500,10 +497,9 @@ bool GCOVProfiler::emitProfileArcs() {
ComplexEdgePreds, ComplexEdgeSuccs);
GlobalVariable *EdgeState = getEdgeStateValue();
Type *Int32Ty = Type::getInt32Ty(*Ctx);
for (int i = 0, e = ComplexEdgePreds.size(); i != e; ++i) {
IRBuilder<> Builder(ComplexEdgePreds[i+1]->getTerminator());
Builder.CreateStore(ConstantInt::get(Int32Ty, i), EdgeState);
Builder.CreateStore(Builder.getInt32(i), EdgeState);
}
for (int i = 0, e = ComplexEdgeSuccs.size(); i != e; ++i) {
// call runtime to perform increment
@ -560,8 +556,8 @@ GlobalVariable *GCOVProfiler::buildEdgeLookupTable(
if (Successors > 1 && !isa<BranchInst>(TI) && !isa<ReturnInst>(TI)) {
for (int i = 0; i != Successors; ++i) {
BasicBlock *Succ = TI->getSuccessor(i);
IRBuilder<> builder(Succ);
Value *Counter = builder.CreateConstInBoundsGEP2_64(Counters, 0,
IRBuilder<> Builder(Succ);
Value *Counter = Builder.CreateConstInBoundsGEP2_64(Counters, 0,
Edge + i);
EdgeTable[((Succs.idFor(Succ)-1) * Preds.size()) +
(Preds.idFor(BB)-1)] = cast<Constant>(Counter);
@ -667,14 +663,14 @@ void GCOVProfiler::insertCounterWriteout(
DISubprogram SP(I->second);
intptr_t ident = reinterpret_cast<intptr_t>(I->second);
Builder.CreateCall2(EmitFunction,
ConstantInt::get(Type::getInt32Ty(*Ctx), ident),
Builder.getInt32(ident),
Builder.CreateGlobalStringPtr(SP.getName()));
GlobalVariable *GV = I->first;
unsigned Arcs =
cast<ArrayType>(GV->getType()->getElementType())->getNumElements();
Builder.CreateCall2(EmitArcs,
ConstantInt::get(Type::getInt32Ty(*Ctx), Arcs),
Builder.getInt32(Arcs),
Builder.CreateConstGEP2_64(GV, 0, 0));
}
Builder.CreateCall(EndFile);
@ -696,7 +692,7 @@ void GCOVProfiler::insertCounterWriteout(
BB = BasicBlock::Create(*Ctx, "entry", F);
Builder.SetInsertPoint(BB);
FTy = FunctionType::get(Type::getInt32Ty(*Ctx),
FTy = FunctionType::get(Builder.getInt32Ty(),
PointerType::get(FTy, 0), false);
Constant *AtExitFn = M->getOrInsertFunction("atexit", FTy);
Builder.CreateCall(AtExitFn, WriteoutF);
@ -714,10 +710,6 @@ void GCOVProfiler::insertIndirectCounterIncrement() {
if (NoRedZone)
Fn->addFnAttr(Attribute::NoRedZone);
Type *Int32Ty = Type::getInt32Ty(*Ctx);
Type *Int64Ty = Type::getInt64Ty(*Ctx);
Constant *NegOne = ConstantInt::get(Int32Ty, 0xffffffff);
// Create basic blocks for function.
BasicBlock *BB = BasicBlock::Create(*Ctx, "entry", Fn);
IRBuilder<> Builder(BB);
@ -731,26 +723,25 @@ void GCOVProfiler::insertIndirectCounterIncrement() {
Argument *Arg = Fn->arg_begin();
Arg->setName("predecessor");
Value *Pred = Builder.CreateLoad(Arg, "pred");
Value *Cond = Builder.CreateICmpEQ(Pred, NegOne);
Value *Cond = Builder.CreateICmpEQ(Pred, Builder.getInt32(0xffffffff));
BranchInst::Create(Exit, PredNotNegOne, Cond, BB);
Builder.SetInsertPoint(PredNotNegOne);
// uint64_t *counter = counters[pred];
// if (!counter) return;
Value *ZExtPred = Builder.CreateZExt(Pred, Int64Ty);
Value *ZExtPred = Builder.CreateZExt(Pred, Builder.getInt64Ty());
Arg = llvm::next(Fn->arg_begin());
Arg->setName("counters");
Value *GEP = Builder.CreateGEP(Arg, ZExtPred);
Value *Counter = Builder.CreateLoad(GEP, "counter");
Cond = Builder.CreateICmpEQ(Counter,
Constant::getNullValue(Int64Ty->getPointerTo()));
Cond = Builder.CreateICmpEQ(Counter, Builder.getInt64(0));
Builder.CreateCondBr(Cond, Exit, CounterEnd);
// ++*counter;
Builder.SetInsertPoint(CounterEnd);
Value *Add = Builder.CreateAdd(Builder.CreateLoad(Counter),
ConstantInt::get(Int64Ty, 1));
Builder.getInt64(1));
Builder.CreateStore(Add, Counter);
Builder.CreateBr(Exit);