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Verified Commit 4f5f49b9 authored by Tim Gymnich's avatar Tim Gymnich
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using namespace llvm

parent fc4fae46
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src/normalized_conjunction.cpp
View file @ 4f5f49b9
......@@ -15,20 +15,20 @@ namespace pcpo {
// MARK: - Initializers
NormalizedConjunction::NormalizedConjunction(llvm::Function const& f) {
for (llvm::Argument const& arg: f.args()) {
NormalizedConjunction::NormalizedConjunction(Function const& f) {
for (Argument const& arg: f.args()) {
get(&arg) = LinearEquality(&arg);
validVariables.insert(&arg);
}
isBottom = f.arg_empty();
}
NormalizedConjunction::NormalizedConjunction(llvm::Function const* callee_func, NormalizedConjunction const& state, llvm::CallInst const* call) {
NormalizedConjunction::NormalizedConjunction(Function const* callee_func, NormalizedConjunction const& state, CallInst const* call) {
assert(callee_func->arg_size() == call->getNumArgOperands());
for (llvm::Argument const& arg: callee_func->args()) {
llvm::Value* value = call->getArgOperand(arg.getArgNo());
for (Argument const& arg: callee_func->args()) {
Value* value = call->getArgOperand(arg.getArgNo());
if (value->getType()->isIntegerTy()) {
if (llvm::ConstantInt const* c = llvm::dyn_cast<llvm::ConstantInt>(value)) {
if (ConstantInt const* c = dyn_cast<ConstantInt>(value)) {
get(&arg) = { &arg, 1 , nullptr, c->getSExtValue() };
} else if (state.values.count(value) > 0) {
LinearEquality value_equality = state.values.at(value);
......@@ -43,7 +43,7 @@ NormalizedConjunction::NormalizedConjunction(llvm::Function const* callee_func,
isBottom = false;
}
NormalizedConjunction::NormalizedConjunction(std::unordered_map<llvm::Value const*, LinearEquality> equalaties) {
NormalizedConjunction::NormalizedConjunction(std::unordered_map<Value const*, LinearEquality> equalaties) {
this->values = equalaties;
isBottom = equalaties.empty();
for (auto& [key, value]: equalaties) {
......@@ -55,9 +55,9 @@ NormalizedConjunction::NormalizedConjunction(std::unordered_map<llvm::Value cons
// MARK: - AbstractState Interface
/// Handles the evaluation of merging points
void NormalizedConjunction::applyPHINode(llvm::BasicBlock const& bb, std::vector<NormalizedConjunction> pred_values,
llvm::Instruction const& phi) {
llvm::PHINode const* phiNode = llvm::dyn_cast<llvm::PHINode>(&phi);
void NormalizedConjunction::applyPHINode(BasicBlock const& bb, std::vector<NormalizedConjunction> pred_values,
Instruction const& phi) {
PHINode const* phiNode = dyn_cast<PHINode>(&phi);
int i = 0;
......@@ -65,7 +65,7 @@ void NormalizedConjunction::applyPHINode(llvm::BasicBlock const& bb, std::vector
auto& incoming_value = *phiNode->getIncomingValueForBlock(pred_bb);
auto& incoming_state = pred_values[i];
if (llvm::ConstantInt const* c = llvm::dyn_cast<llvm::ConstantInt>(&incoming_value)) {
if (ConstantInt const* c = dyn_cast<ConstantInt>(&incoming_value)) {
NormalizedConjunction acc = *this;
acc.linearAssignment(&phi, 1, nullptr, c->getSExtValue());
merge(Merge_op::UPPER_BOUND, acc);
......@@ -83,7 +83,7 @@ void NormalizedConjunction::applyPHINode(llvm::BasicBlock const& bb, std::vector
}
}
void NormalizedConjunction::applyCallInst(llvm::Instruction const& inst, llvm::BasicBlock const* end_block, NormalizedConjunction const& callee_state) {
void NormalizedConjunction::applyCallInst(Instruction const& inst, BasicBlock const* end_block, NormalizedConjunction const& callee_state) {
std::vector<LinearEquality> operands;
// // Keep the debug output happy
......@@ -93,8 +93,8 @@ void NormalizedConjunction::applyCallInst(llvm::Instruction const& inst, llvm::B
//iterate through all instructions of it till we find a return statement
for (auto& iter_inst: *end_block) {
if (llvm::ReturnInst const* ret_inst = llvm::dyn_cast<llvm::ReturnInst>(&iter_inst)) {
llvm::Value const* ret_val = ret_inst->getReturnValue();
if (ReturnInst const* ret_inst = dyn_cast<ReturnInst>(&iter_inst)) {
Value const* ret_val = ret_inst->getReturnValue();
dbgs(4) << "\t\tFound return instruction\n";
if (callee_state.values.find(ret_val) != callee_state.values.end()) {
dbgs(4) << "\t\tReturn evaluated, merging parameters\n";
......@@ -109,10 +109,10 @@ void NormalizedConjunction::applyCallInst(llvm::Instruction const& inst, llvm::B
// debug_output(inst, operands);
}
void NormalizedConjunction::applyReturnInst(llvm::Instruction const& inst) {
llvm::Value const* ret_val = llvm::dyn_cast<llvm::ReturnInst>(&inst)->getReturnValue();
void NormalizedConjunction::applyReturnInst(Instruction const& inst) {
Value const* ret_val = dyn_cast<ReturnInst>(&inst)->getReturnValue();
if (ret_val && ret_val->getType()->isIntegerTy()) {
if (llvm::ConstantInt const* c = llvm::dyn_cast<llvm::ConstantInt>(ret_val)) {
if (ConstantInt const* c = dyn_cast<ConstantInt>(ret_val)) {
get(&inst) = LinearEquality(c);
} else if (values.find(ret_val) != values.end()) {
LinearEquality eq = values.at(ret_val);
......@@ -122,7 +122,7 @@ void NormalizedConjunction::applyReturnInst(llvm::Instruction const& inst) {
validVariables.insert(&inst);
}
void NormalizedConjunction::applyDefault(llvm::Instruction const& inst) {
void NormalizedConjunction::applyDefault(Instruction const& inst) {
std::vector<LinearEquality> operands;
if (inst.getNumOperands() != 2) return nonDeterminsticAssignment(&inst);
......@@ -137,7 +137,7 @@ void NormalizedConjunction::applyDefault(llvm::Instruction const& inst) {
type = dyn_cast<IntegerType>(inst.getOperand(1)->getType());
if (not type) return nonDeterminsticAssignment(&inst);
for (llvm::Value const* value: inst.operand_values()) {
for (Value const* value: inst.operand_values()) {
operands.push_back(LinearEquality(value));
}
......@@ -594,10 +594,10 @@ LinearEquality& NormalizedConjunction::get(Value const* value) {
// MARK: - Debug
void NormalizedConjunction::debug_output(llvm::Instruction const& inst, std::vector<LinearEquality> operands) {
void NormalizedConjunction::debug_output(Instruction const& inst, std::vector<LinearEquality> operands) {
dbgs(3).indent(2) << inst << " // " << values.at(&inst) << ", args ";
{int i = 0;
for (llvm::Value const* value: inst.operand_values()) {
for (Value const* value: inst.operand_values()) {
if (i) dbgs(3) << ", ";
if (value->getName().size()) dbgs(3) << '%' << value->getName() << " = ";
dbgs(3) << operands[i];
......@@ -606,15 +606,15 @@ void NormalizedConjunction::debug_output(llvm::Instruction const& inst, std::vec
dbgs(3) << '\n';
}
void NormalizedConjunction::printIncoming(llvm::BasicBlock const& bb, llvm::raw_ostream& out, int indentation = 0) const {
void NormalizedConjunction::printIncoming(BasicBlock const& bb, raw_ostream& out, int indentation = 0) const {
// @Speed: This is quadratic, could be linear
bool nothing = true;
for (std::pair<llvm::Value const*, LinearEquality> const& i: values) {
for (std::pair<Value const*, LinearEquality> const& i: values) {
bool read = false;
bool written = false;
for (llvm::Instruction const& inst: bb) {
for (Instruction const& inst: bb) {
if (&inst == i.first) written = true;
for (llvm::Value const* v: inst.operand_values()) {
for (Value const* v: inst.operand_values()) {
if (v == i.first) read = true;
}
}
......@@ -629,9 +629,9 @@ void NormalizedConjunction::printIncoming(llvm::BasicBlock const& bb, llvm::raw_
}
}
void NormalizedConjunction::printOutgoing(llvm::BasicBlock const& bb, llvm::raw_ostream& out, int indentation = 0) const {
void NormalizedConjunction::printOutgoing(BasicBlock const& bb, raw_ostream& out, int indentation = 0) const {
for (auto const& i: values) {
if (llvm::ReturnInst::classof(i.first)) {
if (ReturnInst::classof(i.first)) {
out.indent(indentation) << "<ret> = " << i.second << '\n';
} else {
out.indent(indentation) << '%' << i.first->getName() << " = " << i.second << '\n';
......
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