!isa<MaterializeTemporaryExpr>(Value.Base);
}
-static bool IsWeakLValue(const LValue &Value) {
- const ValueDecl *Decl = GetLValueBaseDecl(Value);
- if (!Decl)
- return false;
-
+static bool IsWeakDecl(const ValueDecl *Decl) {
return Decl->hasAttr<WeakAttr>() ||
Decl->hasAttr<WeakRefAttr>() ||
Decl->isWeakImported();
}
+static bool IsWeakLValue(const LValue &Value) {
+ const ValueDecl *Decl = GetLValueBaseDecl(Value);
+ return Decl && IsWeakDecl(Decl);
+}
+
static bool EvalPointerValueAsBool(const LValue &Value, bool &Result) {
const Expr* Base = Value.Base;
return true;
}
+ // Never evaluate the initializer of a weak variable. We can't be sure that
+ // this is the definition which will be used.
+ if (IsWeakDecl(VD))
+ return false;
+
const Expr *Init = VD->getAnyInitializer();
if (!Init)
return false;
union u { int a; char b[4]; };
char c = ((union u)(123456)).b[0]; // expected-error {{not a compile-time constant}}
+
+extern const int weak_int __attribute__((weak));
+const int weak_int = 42;
+int weak_int_test = weak_int; // expected-error {{not a compile-time constant}}