================
@@ -2122,8 +2122,21 @@ SVal
RegionStoreManager::getBindingForField(RegionBindingsConstRef B,
if (const std::optional<SVal> &V = B.getDirectBinding(R))
return *V;
- // If the containing record was initialized, try to get its constant value.
+ // UnnamedBitField is always Undefined unless using memory operation such
+ // as 'memset'.
+ // For example, for code
+ // typedef struct {
+ // int i :2;
+ // int :30; // unnamed bit-field
+ // } A;
+ // A a = {1};
+ // The bits of the unnamed bit-field in local variable a can be anything.
const FieldDecl *FD = R->getDecl();
+ if (FD->isUnnamedBitField()) {
+ return UndefinedVal();
+ }
+
+ // If the containing record was initialized, try to get its constant value.
----------------
steakhal wrote:
I'd say then let's remove it. CompoundVals and LCVs should behave exactly the
same way wrt. the bug reports.
When proposing that change, could you look into git blame to see if we miss
something about the history of that `continue`?
https://github.com/llvm/llvm-project/pull/145066
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
