This fixes PR38640.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@340636
91177308-0d34-0410-b5e6-
96231b3b80d8
const auto *VD = dyn_cast<VarDecl>(DRE->getDecl()->getCanonicalDecl());
if (VD && VD->isLocalVarDecl() && VD->getType()->isReferenceType()) {
if (const auto *E = VD->getInit()) {
+ // Guard against self-initialization. e.g., int &i = i;
+ if (E == Exp)
+ break;
Exp = E;
continue;
}
return ptr->f();
}
}
+
+namespace PR38640 {
+void f() {
+ // Self-referencing assignment previously caused an infinite loop when thread
+ // safety analysis was enabled.
+ int &i = i; // expected-warning {{reference 'i' is not yet bound to a value when used within its own initialization}}
+}
+}