Skip to content

fixes the issue in CallHistory for void functions #413

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
ArpitaDutta wants to merge 2 commits into
base: master
Choose a base branch
from
Open

fixes the issue in CallHistory for void functions #413

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
18b3339
fixes the issue in CallHistory for void functions
ArpitaDutta Apr 21, 2025
df52c17
fixed formatting issues and var value
ArpitaDutta Apr 21, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 7 additions & 5 deletions lib/Core/TxDependency.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1072,13 +1072,15 @@ TxDependency::bindReturnValue(llvm::CallInst *site,
std::vector<llvm::Instruction *> &callHistory,
llvm::Instruction *i, ref<Expr> returnValue) {
llvm::ReturnInst *retInst = llvm::dyn_cast<llvm::ReturnInst>(i);
if (site && retInst &&
retInst->getReturnValue() // For functions returning void
) {
ref<TxStateValue> value =
getLatestValue(retInst->getReturnValue(), callHistory, returnValue);
if (site && retInst) {
ref<TxStateValue> value;
if (!callHistory.empty()) {
callHistory.pop_back();
}else{
klee_error("Encountered an unexpected mismatch between function calls and returns on the stack");
}
if(retInst->getReturnValue()) {
value = getLatestValue(retInst->getReturnValue(), callHistory, returnValue);
}
if (!value.isNull())
addDependency(value, getNewTxStateValue(site, callHistory, returnValue));
Expand Down