================
@@ -26,10 +27,41 @@ namespace {
class BuiltinFunctionChecker : public Checker<eval::Call> {
public:
bool evalCall(const CallEvent &Call, CheckerContext &C) const;
+
+private:
+ const CallDescriptionSet MicrosoftAnalysisAssume{
+ {{"__analysis_assume"}, 1},
+ {{"_Analysis_assume_"}, 1},
+ };
+
+ void evalCallAssume(const CallEvent &Call, CheckerContext &C) const;
};
}
+void BuiltinFunctionChecker::evalCallAssume(const CallEvent &Call,
+ CheckerContext &C) const {
+ assert(Call.getNumArgs() > 0);
+ assert(Call.getResultType()->isVoidType());
+ SVal Arg = Call.getArgSVal(0);
+
+ if (Arg.isUndef())
+ return; // Return true to model purity.
----------------
NagyDonat wrote:
`Return true` is inaccurate/confusing after a valueless `return;`
https://github.com/llvm/llvm-project/pull/80456
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